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New study finds surface disturbance can limit mule deer migration

Researchers used 145 migrations from 56 individual deer to examine disturbance effects at various scales. Results consistently showed that mule deer use of migration corridors steeply declined when surface disturbance from roads and well pads surpassed 3%. Mule deer were able to migrate through areas where surface disturbance was lower.

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After a century of searching, scientists find new liquid phase

Researchers at the University of Colorado Boulder's Soft Materials Research Center (SMRC) have discovered an elusive phase of matter, first proposed more than 100 years ago and sought after ever since.

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Study suggests Baboon model could aide in Alzheimer's disease interventions

Scientists at Texas Biomedical Research Institute's (Texas Biomed) Southwest National Primate Research Center (SNPRC) recently published findings indicating the baboon could prove to be a relevant model to test therapeutics and interventions for neurodegenerative diseases, such as early stage Alzheimer's and related dementias.

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First impressions can sway financial professionals' forecasts of firms for up to 6 years

First impressions can have long-term effects on people's perceptions and behavior. A new study looked at the influence among finance professionals of first impression bias of firms' performance, which spurs people to place undue weight on early experiences. The study found that equity analysts placed greater emphasis on early impressions than later ones, that negative first impressions had more po

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How stimulus dollars are spent will affect emissions for decades

The COVID-19 pandemic and subsequent lockdowns have led to a record crash in emissions. But it will be emission levels during the recovery—in the months and years after the pandemic recedes—that matter most for how global warming plays out, according to a new Nature commentary from researchers at the University of California San Diego.

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Bedrock type under forests greatly affects tree growth, species, carbon storage

A forest's ability to store carbon depends significantly on the bedrock beneath, according to Penn State researchers who studied forest productivity, composition and associated physical characteristics of rocks in the Appalachian ridge and Valley Region of Pennsylvania.

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Government health, safety regulations backfire with conservatives, study shows

Health and safety risks from product consumption, including obesity, vaping, drug misuse and texting while driving, as well as circumstances surrounding the coronavirus pandemic, pose significant problems in the United States and around the world.

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Roadkill study identifies animals most at risk in Europe

Around 194 million birds and 29 million mammals are thought to be killed each year on European roads, according to a new study that has ranked the most vulnerable species.An international research team used 90 roadkill surveys from 24 European countries to create a new method of estimating both the birds and mammal species killed most often on roads, and the species most vulnerable to being wiped

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Roadkill study identifies animals most at risk in Europe

Around 194 million birds and 29 million mammals are thought to be killed each year on European roads, according to a new study that has ranked the most vulnerable species.An international research team used 90 roadkill surveys from 24 European countries to create a new method of estimating both the birds and mammal species killed most often on roads, and the species most vulnerable to being wiped

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Collapsed Star Proves Another of Einstein's Theories

Free Falling Yet again, scientists have validated a major component of Einstein's theory of general relativity . Specifically, a trio of two white dwarf stars and a collapsed neutron star demonstrated the concept of freefall, according to research published this month in the journal Astronomy and Astrophysics . That's the idea, famously illustrated by Galileo's Leaning Tower of Pisa thought exper

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Population ecology: Origins of genetic variability in seals

A new study shows that fluctuations in population sizes in the past have had a significant effect on contemporary seal populations, and estimates the risk of genetic impoverishment in the species investigated.

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Acoustics put a fresh spin on electron transitions

Electrons are very much at the mercy of magnetic fields, which scientists can manipulate to control the electrons and their angular momentum — i.e. their 'spin.'

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Mozart may reduce seizure frequency in people with epilepsy

A new clinical research study has found that a Mozart composition may reduce seizure frequency in patients with epilepsy.

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Marijuana concentrates spike THC levels but don't boost impairment

A study of 121 regular users of legal market cannabis found that higher potency does not necessarily mean greater intoxication. It also found that while balance and memory are impaired immediately after use, that impairment fades within in an hour.

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Government health, safety regulations backfire with conservatives, study shows

A new study from the University of Notre Dame shows government-imposed restrictions can backfire, depending on political ideology.

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First impressions can sway financial professionals' forecasts of firms for up to 6 years

A new study looked at the influence among finance professionals of first impression bias of firms' performance, which spurs people to place undue weight on early experiences. The study found that equity analysts placed greater emphasis on early impressions than later ones, that negative first impressions had more power than positive ones, and that first impression bias could influence forecasts of

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New protocol on breast cancer and breastfeeding

Managing women with breast cancer who are breastfeeding is a complex issue. The Academy of Breastfeeding Medicine presents new recommendations.

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Three research groups, two kinds of electronic properties, one material

This it is the story of a unique material — made of a single compound, it conducts electrons in different ways on its different surfaces and doesn't conduct at all in its middle.

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Simulations on biologically relevant time scales

Researchers deliver new insights into molecular mechanisms relevant for drug development.

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The Coronavirus Is Testing Queer Culture

Editor's Note: This article is part of " Uncharted ," a series about the world we're leaving behind, and the one being remade by the pandemic. June is Pride month, and in a normal year, Pride means crowds. Parades make for colorful, moving pageants that can go for miles. Spectators swarm sidewalks in rainbow clothes or glitter-coated clothes or a distinct lack of clothes. Orbiting the main festiv

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Engineers find neat way to turn waste carbon dioxide into useful material

Chemical engineers from UNSW Sydney have developed new technology that helps convert harmful carbon dioxide emissions into chemical building blocks to make useful industrial products like fuel and plastics.

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Police body cameras were supposed to build trust. So far, they haven't.

A police body camera. (Lutsenko Oleksandr / Deposit Photos /) In the wake of George Floyd and Breonna Taylor's deaths , the US is focusing on police reform. Among new measures on the table is an emphasis on the cameras that police officers wear on their bodies. In fact, a new proposal on Monday from Congressional Democrats makes supporting the tech a key point. The Justice in Policing Act of 2020

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An artist carved this tiny bird sculpture 13,000 years ago in China

A carving of a bird less than 2 centimetres long was probably shaped 13,000 years ago, making it one of the oldest known sculptures discovered in China

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Turning the spleen into a liver saves mice from fatal organ damage

The spleens of live mice can be transformed into liver-like organs as a treatment for severe liver damage that could one day replace transplants in humans

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Mental, physical health of people with obesity affected during COVID-19 pandemic

The COVID-19 pandemic is having a significant impact on people with obesity as they struggle to manage their weight and mental health during shelter-in-place orders, according to research led by The University of Texas Health Science Center at Houston (UTHealth) and UT Southwestern.

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Pre-term deliveries due to COVID-19 could be avoided by studying EHRs

Using electronic health record (EHR) data to simulate drug trials for pregnant patients could one day offer a solution to the current practice of delivering babies pre-term if an expectant mother contracts COVID-19, according to a position paper published in Nature Medicine.

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Three research groups, two kinds of electronic properties, one material

This it is the story of a unique material — made of a single compound, it conducts electrons in different ways on its different surfaces and doesn't conduct at all in its middle.

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Extinct camelids reveal insights about North America's ancient savannas

A new study looking at extinct camelids — ancestors of today's camels and llamas — tells the story of North America's ancient savannas and highlights how past climatic and environmental conditions influenced the composition of mammalian faunas.

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Simulations on biologically relevant time scales

Researchers deliver new insights into molecular mechanisms relevant for drug development.

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Cellular stress causes cancer cell chemoresistance

Resistance of cancer cells against therapeutic agents is a major cause of treatment failure, especially in recurrent diseases. An international team has now identified a novel mechanism of chemoresistance.

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New 'sun clock' quantifies extreme space weather switch on/off

Extreme space weather events can significantly impact systems such as satellites, communications systems, power distribution and aviation. They are driven by solar activity which is known to have an irregular but roughly 11 year cycle. By devising a new, regular 'sun clock', researchers have found that the switch on and off of periods of high solar activity is quite sharp, and are able to determin

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Speed of space storms key to protecting astronauts and satellites from radiation

Measuring the speed of coronal mass ejections (CMEs) as they erupt from the sun, in addition to their size, found to be crucial in providing accurate early warnings that keep astronauts and technology safe.

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Twitter Is Calling You Out for Sharing Articles You Haven't Read

Twitter is testing out a new feature on Android that ask users if they want to click and actually read the dang article they're planning to retweet. "Sharing an article can spark conversation, so you may want to read it before you Tweet it," reads a brief update from the company's Twitter Support account. The news comes after the social media network flagged tweets penned by president Donald Trum

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Researchers identify new genetic defect linked to ALS

Researchers at the University of Maryland School of Medicine (UMSOM) have identified how certain gene mutations cause amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease. The pathway identified by the researchers may also be responsible for a certain form of dementia related to ALS. The finding could offer potential new approaches for treating this devastating condition.

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Researchers uncover novel approach for treating eczema

Researchers at the University of British Columbia (UBC) and Vancouver Coastal Health Research Institute (VCHRI) have identified a key enzyme that contributes to eczema, which may lead to better treatment to prevent the skin disorder's debilitating effects.

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WHO Comments Breed Confusion Over Asymptomatic Spread of COVID-19

After stating that asymptomatic individuals are unlikely to transmit the novel coronavirus, World Health Organization officials clarify that this is very much an open question.

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Engineers find neat way to turn waste carbon dioxide into useful material

Making catalysts to convert waste carbon dioxide into useful industrial products has been expensive and complicated — until now. Engineers show it's as easy as playing with Lego.

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Ancient bird figurine recovered from refuse heap the oldest instance of East Asian 3D art

A small bird carving – -the oldest instance of East Asian three-dimensional art ever discovered — is described in a new study.

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Beavers are diverse forest landscapers

Beavers are ecosystem engineers that cut down trees to build dams, eventually causing floods. Beaver-induced floods make forest landscapes and habitats increasingly diverse, but very little is known about the long-term effects of beavers on European landscapes. Researchers have now examined the history and occurrence of beaver-induced floods and patch dynamics in southern Finland. They used a uniq

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A good vitamin D status can protect against cancer

A good vitamin D status is beneficial both in cancer prevention and in the prognosis of several cancers, according to a new research review. The anti-cancer effects of vitamin D are especially pronounced in the prevention and treatment of colon cancer and blood cancers. In addition, high vitamin D responsiveness can be linked to a smaller cancer risk. Vitamin D responsiveness varies between indivi

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A rare heart bone is discovered in chimpanzees

Experts have discovered that some chimpanzees have a bone in their heart, which could be vital in managing their health and conservation.

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Dread can be a powerful motivational tool

A study from the University of British Columbia weighs the effects of positive and negative anticipation. Immediate gratification is a powerful motivator; we also want to get negative experiences over with sooner than later. The feeling of dread can be a powerful motivational tool to stop procrastination. A smiling couple in their 70s, sitting on lounge chairs, overlooking a sun-soaked ocean from

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Creative ice cube trays to chill your drink

Don't be square. (David von Diemar via Unsplash/) While the fundamentals of ice don't change—combine two parts hydrogen and one part oxygen, then chill until solid—the way we shape that ice is limitless. Sometimes these shapes serve a function, such as large blocks or spheres that are slower to melt and don't dilute our drinks. And in other cases, odd shapes add a touch of whimsy to our glasses.

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First confirmation of new theory by metamaterial

Physicists have experimentally demonstrated a novel effect for the first time by exploiting topological metamaterials.

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Engineers find neat way to turn waste carbon dioxide into useful material

Making catalysts to convert waste carbon dioxide into useful industrial products has been expensive and complicated — until now. UNSW engineers show it's as easy as playing with Lego.

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AI Learns from Lung CT Scans to Diagnose COVID-19

Lesions in the lungs of patients with pneumonia caused by a SARS-CoV-2 infection are distinct from those caused by bacteria.

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First confirmation of new theory by metamaterial

Physicists have experimentally demonstrated a novel effect for the first time by exploiting topological metamaterials.

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Fewer complications after organ transplantation

A large international study has demonstrated the safety of new cell therapy approaches for use in kidney transplant recipients. Transplant recipients were shown to require lower levels of immunosuppression in order to prevent organ rejection. This reduces the risk of side effects such as viral infections.

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Women generate lower travel-related greenhouse gas emissions

Women use more diverse modes of travel and generate lower greenhouse gas emissions than men, despite men being more than twice as likely to travel by bike, a new study has found.

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Antarctic sea-ice models improve for the next IPCC report

All the new coupled climate models project that the area of sea ice around Antarctica will decline by 2100, but the amount of loss varies considerably between the emissions scenarios.

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How the brain controls our speech

Speaking requires both sides of the brain. Each hemisphere takes over a part of the complex task of forming sounds, modulating the voice and monitoring what has been said. However, the distribution of tasks is different than has been thought up to now, as an interdisciplinary team of neuroscientists and phoneticians has discovered.

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Protest misinformation is riding on the success of pandemic hoaxes

After months spent battling covid-19, the US is now gripped by a different fever. As the video of George Floyd being murdered by Derek Chauvin circulated across social media, the streets around America—and then the world—have filled with protesters. Floyd's name has become a public symbol of injustice in a spiraling web of interlaced atrocities endured by Black people, including Breonna Taylor ,

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NASA Tests James Webb Telescope's Vital Tower Assembly

The James Webb Space Telescope (JWST) has been in some stage of development since the 1990s. A long string of setbacks and delays have made the project much more expensive than NASA initially intended, but we're nearing launch of the successor to the Hubble Space Telescope. Before it can head into space, NASA needs to make sure all the components are working, including the critical deployable tow

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IBM Director: Get Ready For Quantum Computing App Stores

Free Download Right now, writing the software for quantum computers and circuits requires an extensive understanding of the underlying science. But that could change as something resembling a sort of quantum app store emerges within the industry, IBM Research director Dario Gil wrote in a Scientific American op-ed . And, he argues, that era of increased accessibility is coming soon. Open Access G

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Nyt forskningsprojekt: Kan sensorteknologi hjælpe indlagte patienter med diabetes?

Mange patienter med diabetes er bange for, at deres diabetes kommer ud af kontrol, hvis de bliver indlagt på hospitalet. Brug af sensorteknologi kan måske give både mere tryghed hos patienterne og en bedre og mere effektiv behandling. Det skal et nyt forskningsprojekt på Nordsjællands Hospital nu undersøge.

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Great Science Books to Read Right Now

Now's the time to pick up a book about the science of breath, the physics of destruction, or how one major U.S. city is responding to climate change.

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Oncotarget: Exploring the role of survivin in neuroendocrine neoplasms

Volume 11, Issue 23 of @Oncotarget reported that tissue microarrays of 132 patients were stained for survivin using immunohistochemistry and correlated with outcomes.

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How stimulus dollars are spent will affect emissions for decades

The COVID-19 pandemic and subsequent lockdowns have led to a record crash in emissions. But it will be emission levels during the recovery.

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Most Clean Energy Tech Is Not on Track to Meet Climate Goals

A new report says that only six of 46 clean energy sectors are making enough progress to limit warming to under 2 degrees Celsius — Read more on ScientificAmerican.com

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Why Forecasters Can't Make Up Their Mind About Africa And The Coronavirus

Will the continent see a disastrous wave of cases? Or will it be spared the brunt of the pandemic? Different researchers have different theories. (Image credit: KC Nwakalor/Bloomberg via Getty Images)

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Skoltech researchers use machine learning to aid oil production

Skoltech scientists and their industry colleagues have found a way to use machine learning to accurately predict rock thermal conductivity, a crucial parameter for enhanced oil recovery.

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Drowning in Light – Issue 86: Energy

In 1996, Yale economist William D. Nordhaus calculated that the average citizen of Babylon would have had to work a total of 41 hours to buy enough lamp oil to equal a 75-watt light bulb burning for one hour. At the time of the American Revolution, a colonial would have been able to purchase the same amount of light, in the form of candles, for about five hour's worth of work. And by 1992, the av

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Ancient enzymes can contribute to greener chemistry

A research team has resurrected several billion-year-old enzymes and reprogrammed them to catalyze completely different chemical reactions than their modern versions can manage. The method can be used to develop sustainable solutions within biotechnology, such as for enzyme bioreactors or to chemically degrade environmental toxins.

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Johnson under fire over lockdown timing

Ex-science adviser says coronavirus toll could have been halved, while UK PM also faces bad news on testing and economy

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Family Estrangement–Why Families Cut Ties and How to Mend Them

Family estrangement is painful and isolating. What are the reasons that family members cut each other off? How can we cope with or prevent broken family ties? — Read more on ScientificAmerican.com

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Potential treatment for Rett Syndrome

An experimental cancer drug can extend the life of mice with Rett Syndrome, a devastating genetic disorder that afflicts about one of every 10,000 to 15,000 girls within 6 to 18 months after birth.

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Ancient enzymes can contribute to greener chemistry

A research team has resurrected several billion-year-old enzymes and reprogrammed them to catalyze completely different chemical reactions than their modern versions can manage. The method can be used to develop sustainable solutions within biotechnology, such as for enzyme bioreactors or to chemically degrade environmental toxins.

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Different hormone therapies affect brain function differently

Sex hormones influence the structure and function of the brain, but little is known about the effect of hormone therapies (HT) on changes in the brain during menopause. A new study shows smaller increases in structural brain changes related to aging were associated with hormone-level changes from transdermal estradiol or oral conjugated equine estrogen.

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Simple way of 'listening' to chicks could dramatically improve welfare

New research suggests a simple and low-cost method of 'listening' to chicks may allow welfare issues to be picked up at the earliest possible opportunity.

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Living near oil and gas wells may increase preterm birth risk

New research shows living near oil and gas development in California is a risk factor for preterm birth, the leading cause of infant death in the United States. About 2.1 million Californians live within one mile of an active oil or gas well.

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Cannabis temporarily relieves PTSD symptoms, study suggests

People suffering from post-traumatic distress disorder report that cannabis reduces the severity of their symptoms by more than half, at least in the short term, according to a recent study.

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Ancient rocks may determine earthquakes in Australia

Rock structures formed deep within the ancient Gondwana supercontinent controlled the rupture pathways of one of Australia's largest modern earthquakes, research finds. Seismological and geological studies near Uluru in Australia's arid center show that the 2016 magnitude 6.0 Petermann earthquake produced a landscape-shifting 21 kilometer (13 mile) surface rupture. Zones of weak rocks that formed

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Covid-19 news: UK infections mostly came from Spain, France and Italy

The latest coronavirus news updated every day including coronavirus cases, the latest news, features and interviews from New Scientist and essential information about the covid-19 pandemic

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Family Estrangement–Why Families Cut Ties and How to Mend Them

Family estrangement is painful and isolating. What are the reasons that family members cut each other off? How can we cope with or prevent broken family ties? — Read more on ScientificAmerican.com

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Scientists Say You Could Charge Batteries Using Humidity

Researchers from Tel Aviv University have found that water vapor in the atmosphere has the potential to become a viable source of renewable energy. So far, the voltage generated in their experiments is extremely low. But if it scales up, they say the phenomenon could be used to charge batteries. "If an AA battery is 1.5V, there may be a practical application in the future: to develop batteries th

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New procedure 'rewires' the heart to prevent recurrent fainting spells

A procedure conducted for the first time in the United States at University of Chicago Medicine has provided much-needed relief for a patient who suffered from recurrent fainting spells. Called cardioneural ablation, the procedure essentially rewired the heart to treat the recurring sudden drops in heart rate and blood pressure that had been causing the 52-year-old woman to faint at least once eve

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Climate change: Warm springtime's unwelcome legacy

A new study shows that the severe impact of the summer drought that hit Europe in 2018 was partly due to the spring heatwave that preceded it, which triggered early and rapid plant growth, depleting soil moisture.

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Nanopatterned 'lab-on-a-chip' noninvasively detects early and advanced breast cancer

A scalable 'lab-on-a-chip' technology based on inkjet printing methods detected breast cancer in plasma samples from patients with more than 90% accuracy, according to a new study.

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Researchers mimic nature for fast, colorful 3D printing

Brilliantly colored chameleons, butterflies, opals – and now some 3D-printed materials — reflect color by using nanoscale structures called photonic crystals. A new study that demonstrates how a modified 3D-printing process provides a versatile approach to producing multiple colors from a single ink is published in the journal Science Advances.

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How rod-shaped particles might distract an out-of-control COVID immune response

A long-ignored white blood cell may be central to the immune system overreaction that is the most common cause of death for COVID-19 patients–and University of Michigan researchers found that rod-shaped particles can take them out of circulation.

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A robot to track and film flying insects

French scientists have developed the first cable-driven robot that can follow and interact with free-flying insects. With the help of this "lab-on-cables," which is equipped with cameras and a controller that minimizes tracking errors between the insect's and the robot's position, they successfully studied the free flight of moths up to a speed of 3 metres/second.

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Minority students can become 'hyperpersistent' when they achieve better than middling grades

Scientists report that undergraduate students from underrepresented groups who score below a C- in general chemistry are less likely to persist in STEM classes than their classmates with similar grades, but they are much more likely than their peers to persist if they earn a C+ or better. The researchers suggest that improving the performance of all students could

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Island 'drowning' is not inevitable as sea levels rise

An international study led by the University of Plymouth (UK) suggests islands composed of gravel material can evolve in the face of overtopping waves, with sediment from the beach face being transferred to the island's surface.

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Intracellular biopsy technique for fast microRNAs profiling in living cells

MicroRNAs (miRNAs) are gaining more attention in researches. To achieve fast and highly sensitive profiling of miRNAs, a research team from City University of Hong Kong (CityU) has developed a novel high-throughput intracellular biopsy technique that isolates targeted miRNAs from living cells within around 10 minutes by using diamond nanoneedles. The technique is simple and can be applied to other

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An ISGlobal team achieves massive sexual conversion of the malaria parasite in a dish

The technique will facilitate the design of new tools to block disease transmission.

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Physics principle explains order and disorder of swarms

Physicists demonstrate a correlation between the behavior of collective animal systems and a so-called 'critical point'.

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Proposed seismic surveys in Arctic Refuge likely to cause lasting damage

Winter vehicle travel can cause long-lasting damage to the tundra, according to a new article. Scars from seismic surveys for oil and gas exploration in the Arctic National Wildlife Refuge remained for decades, according to the study. The findings counter assertions made by the Bureau of Land Management in 2018 that seismic exploration causes no 'significant impacts' on the landscape.

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Physics principle explains order and disorder of swarms

Physicists demonstrate a correlation between the behavior of collective animal systems and a so-called 'critical point'.

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What makes a giant jellyfish's sting deadly?

With summer on the way, and some beaches reopening after COVID-19 shutdowns, people will be taking to the ocean to cool off on a hot day. But those unlucky enough to encounter the giant jellyfish Nemopilema nomurai (also known as Nomura's jellyfish) might wish they had stayed on shore. Now, researchers have identified the key toxins that make the creature's venom deadly to some swimmers.

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Considering health when switching to cleaner electricity

Power plants that burn coal and other fossil fuels emit not only planet-warming carbon dioxide, but also pollutants linked to breathing problems and premature death. Policies proposed to mitigate climate change, however, often fail to fully account for the health benefit of switching to cleaner technologies. Researchers show that emphasizing health concerns in such policies can alter the optimal l

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Daily briefing: STEM on strike for Black lives

Nature, Published online: 10 June 2020; doi:10.1038/d41586-020-01743-5 Nature joins #ShutDownSTEM and we focus on efforts to eliminate anti-Black racism across the scientific community.

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Bird figurine is earliest Chinese artwork ever discovered, say experts

'Refined' 2cm carving found in Henan dates to palaeolithic period up to 13,000 years ago A tiny figurine of a bird, carved from burnt bone and no bigger than a £1 coin, is the earliest Chinese artwork ever discovered, according to an international team of archaeologists . The carving , less than 2cm in length, has been dated to the palaeolithic period, between 13,800 and 13,000 years ago, which p

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3 Black Photographers on Capturing the George Floyd Protests

Lynsey Weatherspoon, Alexis Hunley, and Darrel Hunter capture the narrative and moral identity of Black protesters in an era of misinformation and surveillance.

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For a Day, Scientists Pause Science to Confront Racism

Scholars said they would not hold classes or lectures on Wednesday, and leading journals and scientific associations said they would not announce most breakthroughs.

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Fed predicts no rate increases until at least the end of 2022

Dovish tone from central bank follows unexpected job gains in May

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Coral reef islands can accrete vertically in response to sea level rise

Increased flooding due to sea level rise (SLR) is expected to render reef islands, defined as sandy or gravel islands on top of coral reef platforms, uninhabitable within decades. Such projections generally assume that reef islands are geologically inert landforms unable to adjust morphologically. We present numerical modeling results that show reef islands composed of gravel material are morphod

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Unprecedented dipole alignment in {alpha}-phase nylon-11 nanowires for high-performance energy-harvesting applications

Dipole alignment in ferroelectric polymers is routinely exploited for applications in charge-based applications. Here, we present the first experimental realization of ideally ordered dipole alignment in α-phase nylon-11 nanowires. This is an unprecedented discovery as dipole alignment is typically only ever achieved in ferroelectric polymers using an applied electric field, whereas here, we achi

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Geologic evidence for an icehouse Earth before the Sturtian global glaciation

Snowball Earth episodes, times when the planet was covered in ice, represent the most extreme climate events in Earth's history. Yet, the mechanisms that drive their initiation remain poorly constrained. Current climate models require a cool Earth to enter a Snowball state. However, existing geologic evidence suggests that Earth had a stable, warm, and ice-free climate before the Neoproterozoic S

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Nanoparticle-based thymulin gene therapy therapeutically reverses key pathology of experimental allergic asthma

Despite long-standing efforts to enhance care for chronic asthma, symptomatic treatments remain the only option to manage this highly prevalent and debilitating disease. We demonstrate that key pathology of allergic asthma can be almost completely resolved in a therapeutic manner by inhaled gene therapy. After the disease was fully and stably established, we treated mice intratracheally with a si

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Incomplete annotation has a disproportionate impact on our understanding of Mendelian and complex neurogenetic disorders

Growing evidence suggests that human gene annotation remains incomplete; however, it is unclear how this affects different tissues and our understanding of different disorders. Here, we detect previously unannotated transcription from Genotype-Tissue Expression RNA sequencing data across 41 human tissues. We connect this unannotated transcription to known genes, confirming that human gene annotat

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The clonal evolution of metastatic colorectal cancer

Tumor heterogeneity and evolution drive treatment resistance in metastatic colorectal cancer (mCRC). Patient-derived xenografts (PDXs) can model mCRC biology; however, their ability to accurately mimic human tumor heterogeneity is unclear. Current genomic studies in mCRC have limited scope and lack matched PDXs. Therefore, the landscape of tumor heterogeneity and its impact on the evolution of me

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Information theory tests critical predictions of plant defense theory for specialized metabolism

Different plant defense theories have provided important theoretical guidance in explaining patterns in plant specialized metabolism, but their critical predictions remain to be tested. Here, we systematically explored the metabolomes of Nicotiana attenuata , from single plants to populations, as well as of closely related species, using unbiased tandem mass spectrometry (MS/MS) analyses and proc

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Conditional expression of PfAP2-G for controlled massive sexual conversion in Plasmodium falciparum

Malaria transmission requires that some asexual parasites convert into sexual forms termed gametocytes. The initial stages of sexual development, including sexually committed schizonts and sexual rings, remain poorly characterized, mainly because they are morphologically identical to their asexual counterparts and only a small subset of parasites undergo sexual development. Here, we describe a sy

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Reducing achievement gaps in undergraduate general chemistry could lift underrepresented students into a "hyperpersistent zone"

Students from underrepresented groups start college with the same level of interest in STEM majors as their peers, but leave STEM at higher rates. We tested the hypothesis that low grades in general chemistry contribute to this "weeding," using records from 25,768 students. In the first course of a general chemistry series, grade gaps based on binary gender, race/ethnicity, socioeconomic status,

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Tunable structural color of bottlebrush block copolymers through direct-write 3D printing from solution

Additive manufacturing of functional materials is limited by control of microstructure and assembly at the nanoscale. In this work, we integrate nonequilibrium self-assembly with direct-write three-dimensional (3D) printing to prepare bottlebrush block copolymer (BBCP) photonic crystals (PCs) with tunable structure color. After varying deposition conditions during printing of a single ink solutio

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Projected 21st century changes in extreme wind-wave events

We describe an innovative approach to estimate global changes in extreme wave conditions by 2100, as a result of projected climate change. We generate a synthetic dataset from an ensemble of wave models forced by independent climate simulation winds, enhancing statistical confidence associated with projected changes in extreme wave conditions. Under two IPCC representative greenhouse gas emission

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Inhibition of the translesion synthesis polymerase REV1 exploits replication gaps as a cancer vulnerability

The replication stress response, which serves as an anticancer barrier, is activated not only by DNA damage and replication obstacles but also oncogenes, thus obscuring how cancer evolves. Here, we identify that oncogene expression, similar to other replication stress–inducing agents, induces single-stranded DNA (ssDNA) gaps that reduce cell fitness. DNA fiber analysis and electron microscopy rev

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[NiFe], [FeFe], and [Fe] hydrogenase models from isomers

The study of hydrogenase enzymes (H 2 ases) is necessary because of their importance to a future hydrogen energy economy. These enzymes come in three distinct classes: [NiFe] H 2 ases, which have a propensity toward H 2 oxidation; [FeFe] H 2 ases, which have a propensity toward H 2 evolution; and [Fe] H 2 ases, which catalyze H – transfer. Modeling these enzymes has so far treated them as differe

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Transforming the spleen into a liver-like organ in vivo

Regenerating human organs remains an unmet medical challenge. Suitable transplants are scarce, while engineered tissues have a long way to go toward clinical use. Here, we demonstrate a different strategy that successfully transformed an existing, functionally dispensable organ to regenerate another functionally vital one in the body. Specifically, we injected a tumor extract into the mouse splee

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Acoustic streaming vortices enable contactless, digital control of droplets

Advances in lab-on-a-chip technologies are driven by the pursuit of programmable microscale bioreactors or fluidic processors that mimic electronic functionality, scalability, and convenience. However, few fluidic mechanisms allow for basic logic operations on rewritable fluidic paths due to cross-contamination, which leads to random interference between "fluidic bits" or droplets. Here, we intro

2d

R-loops coordinate with SOX2 in regulating reprogramming to pluripotency

R-loops modulate genome stability and regulate gene expression, but the functions and the regulatory mechanisms of R-loops in stem cell biology are still unclear. Here, we profiled R-loops during somatic cell reprogramming and found that dynamic changes in R-loops are essential for reprogramming and occurred before changes in gene expression. Disrupting the homeostasis of R-loops by depleting RNa

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Neutrophils preferentially phagocytose elongated particles–An opportunity for selective targeting in acute inflammatory diseases

Polymeric particles have recently been used to modulate the behavior of immune cells in the treatment of various inflammatory conditions. However, there is little understanding of how physical particle parameters affect their specific interaction with different leukocyte subtypes. While particle shape is known to be a crucial factor in their phagocytosis by macrophages, where elongated particles

2d

Emilin 2 promotes the mechanical gradient of the cochlear basilar membrane and resolution of frequencies in sound

The detection of different frequencies in sound is accomplished with remarkable precision by the basilar membrane (BM), an elastic, ribbon-like structure with graded stiffness along the cochlear spiral. Sound stimulates a wave of displacement along the BM with maximal magnitude at precise, frequency-specific locations to excite neural signals that carry frequency information to the brain. Percept

2d

Direct and seasonal legacy effects of the 2018 heat wave and drought on European ecosystem productivity

In summer 2018, central and northern Europe were stricken by extreme drought and heat (DH2018). The DH2018 differed from previous events in being preceded by extreme spring warming and brightening, but moderate rainfall deficits, yet registering the fastest transition between wet winter conditions and extreme summer drought. Using 11 vegetation models, we show that spring conditions promoted incr

2d

Accelerated evolution of a minimal 63-amino acid dual transcription factor

Transcription factors control gene expression in all life. This raises the question of what is the smallest protein that can support such activity. In nature, Cro from bacteriophage is one of the smallest known repressors (66 amino acids), and activators are typically much larger (e.g., cI, 237 amino acids). Previous efforts to engineer a minimal activator from Cro resulted in no activity in vivo

2d

Direct observation and catalytic role of mediator atom in 2D materials

The structural transformations of graphene defects have been extensively researched through aberration-corrected transmission electron microscopy (AC-TEM) and theoretical calculations. For a long time, a core concept in understanding the structural evolution of graphene defects has been the Stone-Thrower-Wales (STW)–type bond rotation. In this study, we show that undercoordinated atoms induce bon

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High-throughput intracellular biopsy of microRNAs for dissecting the temporal dynamics of cellular heterogeneity

The capability to analyze small RNAs responsible for post-transcriptional regulation of genes expression is essential for characterizing cellular phenotypes. Here, we describe an intracellular biopsy technique (inCell-Biopsy) for fast, multiplexed, and highly sensitive profiling of microRNAs (miRNAs). The technique uses an array of diamond nanoneedles that are functionalized with size-dependent R

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Noninvasive, wearable, and tunable electromagnetic multisensing system for continuous glucose monitoring, mimicking vasculature anatomy

Painless, needle-free, and continuous glucose monitoring sensors are needed to enhance the life quality of diabetic patients. To that extent, we propose a first-of-its-kind, highly sensitive, noninvasive continuous glycemic monitoring wearable multisensor system. The proposed sensors are validated on serum, animal tissues, and animal models of diabetes and in a clinical setting. The noninvasive m

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Real-time detection of single-molecule reaction by plasmon-enhanced spectroscopy

Determining structural transformations of single molecules (SMs) is an important fundamental scientific endeavor. Optical spectroscopies are the dominant tools used to unravel the physical and chemical features of individual molecules and have substantially contributed to surface science and biotechnology. In particular, Raman spectroscopy can identify reaction intermediates and reveal underlying

2d

A single dose of ChAdOx1 MERS provides protective immunity in rhesus macaques

Developing a vaccine to protect against the lethal effects of the many strains of coronavirus is critical given the current global pandemic. For Middle East respiratory syndrome coronavirus (MERS-CoV), we show that rhesus macaques seroconverted rapidly after a single intramuscular vaccination with ChAdOx1 MERS. The vaccine protected against respiratory injury and pneumonia and reduced viral load

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What we can learn from New Zealand's successful fight against COVID-19

Not all of New Zealand's anti-COVID tactics can be applied here, but they can still teach us plenty. (Unsplash/) Follow all of PopSci's COVID-19 coverage here , including news on federal policies , how to avoid spreading illness while participating in protests , and a state-by-state breakdown of confirmed cases . On June 8, New Zealand announced that its last person known to be infected with COVI

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Intracellular biopsy technique for fast microRNAs profiling in living cells

MicroRNAs (miRNAs) are gaining more attention in studies of human diseases such as cancer, because changes in miRNA expression are frequently associated with abnormal cellular functions. To achieve fast and highly sensitive profiling of miRNAs, a research team from City University of Hong Kong (CityU) has developed a novel intracellular biopsy technique that isolates targeted miRNAs from living ce

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Research team achieves massive sexual conversion of the malaria parasite in a dish

A research team at ISGlobal, an institution supported by the "la Caixa" Foundation, has developed a system to induce massive sexual conversion of the P. falciparum malaria parasite in vitro. This technique, published in Science Advances, will prove instrumental to gain a deeper understanding of the sexual conversion process and design new tools to block malaria transmission.

2d

Gaps in data on marijuana use limit public health response

Better data on marijuana use in the US is needed to support critical public health research, according to a review of relevant surveys conducted by University of Massachusetts Amherst researchers.

2d

Bedrock type under forests greatly affects tree growth, species, carbon storage

A forest's ability to store carbon depends significantly on the bedrock beneath, according to Penn State researchers who studied forest productivity, composition and associated physical characteristics of rocks in the Appalachian ridge and Valley Region of Pennsylvania.

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A method has been developed to study the 'traces' of coronal mass ejections at the Sun.

Scientists at Skolkovo Institute of Science and Technology (skoltech), together with colleagues from the Karl-Franzens University of Graz and the Kanzelhoehe Observatory (Austria) developed an automatic method for detecting 'coronal dimmings', or 'traces' of coronal mass ejections at the Sun, and also proved that they are reliable indicators of the early diagnosis of powerful emissions of energy f

2d

Cannabis poisonings in children linked with drinking and illicit drug use

Most cannabis poisoning incidents involving children resulted from the intentional use of cannabis combined with alcohol, illicit drugs and/or medication, new research suggests.

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'Building wealth and health network' reduces food insecurity without providing food

As the coronavirus pandemic forces so many to reckon with growing food insecurity and increased health challenges, the Building Wealth and Health Network program of Drexel University's Center for Hunger-Free Communities is reducing food insecurity and improving mental health – without distributing any food or medicine.

2d

Physics principle explains order and disorder of swarms

Physicists from the University of Konstanz prove correlation between behaviour of collective animal systems and a so-called 'critical point'.

2d

Roadkill study identifies animals most at risk in Europe

New method used to predict how many birds and mammals are being killed on European roads, as well as identifying species whose long-term survival is threatened by roads. Roadkill risk is not currently considered when assessing impact of new roads on wildlife, meaning conservation efforts may currently be misplaced.

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Passing challenging introductory chemistry course gives biggest boost to underrepresented students

Studies have shown that students from certain backgrounds are less likely than their peers to complete an undergraduate degree in science, technology, engineering or mathematics—or STEM. These groups are low-income students, first-generation college students, female students and students from underrepresented minority backgrounds: Latinx, African American, Native American and Native Hawaiian and P

2d

Intracellular biopsy technique for fast microRNAs profiling in living cells

MicroRNAs (miRNAs) are gaining more attention in studies of human diseases such as cancer, because changes in miRNA expression are frequently associated with abnormal cellular functions. To achieve fast and highly sensitive profiling of miRNAs, a research team from City University of Hong Kong (CityU) has developed a novel intracellular biopsy technique that isolates targeted miRNAs from living ce

2d

Research team achieves massive sexual conversion of the malaria parasite in a dish

A research team at ISGlobal, an institution supported by the "la Caixa" Foundation, has developed a system to induce massive sexual conversion of the P. falciparum malaria parasite in vitro. This technique, published in Science Advances, will prove instrumental to gain a deeper understanding of the sexual conversion process and design new tools to block malaria transmission.

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Molecular twist makes one catalyst useful for three hydrogen applications

Scientists from Kyushu University and Kumamoto University in Japan have developed a new catalyst capable of assisting three key reactions for using hydrogen in energy and industry. Inspired by three types of enzymes in nature, this research can help elucidate unknown relationships among catalysts, paving the way for efficient use of hydrogen gas as a next-generation energy source in the future.

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Ancient bird figurine recovered from refuse heap the oldest instance of East Asian 3-D art

A small bird carving—the oldest instance of East Asian three-dimensional art ever discovered—is described in a study published June 10, 2020 in the open-access journal PLOS ONE by Zhanyang Li from Shandong University, China, and colleagues.

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Island 'drowning' is not inevitable as sea levels rise

Coral reef islands across the world could naturally adapt to survive the impact of rising sea levels, according to new research.

2d

Researchers mimic nature for fast, colorful 3-D printing

Brilliantly colored chameleons, butterflies, opals—and now some 3-D-printed materials—reflect color by using nanoscale structures called photonic crystals.

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Affordable knife blocks to keep your blades safe and sharp

A cut above the rest. (Creatv Eight via Unsplash/) Sharp knives in a variety of types are a must-have for home chefs paring fresh garnishes and perfectly sliced vegetables. With pro-level knife ownership comes a responsibility to keep pointy objects carefully stored, both to protect the blade from dings that blunt its usefulness and to protect others from unexpected jabs. These four knife blocks

2d

Newly synthesized fungal compound can switch on a self-destruct button for cancer

Cancers cells use a special technique to propagate; they delete their 'programmed death' gene through mutation, 'forget' to die when their lifetime is over, and continue to grow instead. A research team from Tokyo University of Science has developed a method through which a fungal compound capable of rearming the self-destruct gene in certain cancer cells can be artificially produced in marketable

2d

Look to precision public health to address the perfect storm fueling COVID-19 mortality

The interaction of COVID-19 with co-existing non-communicable diseases (NCDs) is a perfect storm, particularly for communities of poverty. While primarily targeting the elderly, NCDs and underlying metabolic conditions- obesity, hypertension, kidney disease, and diabetes in younger people, are all associated with higher risk of severe illness, hospitalization and death from COVID-19. As COVID-19 c

2d

Three research groups, two kinds of electronic properties, one material

An outstanding collaboration combines materials science, experimental and theoretical physics. The work paves the way to new designed materials that combine in them multiple electrical functionalities.

2d

Decisions made for incapacitated patients often not what families want

Researchers from Regenstrief Institute and Indiana University report in a study published in JAMA Network Open that nearly half of the time medical treatments and orders received for incapacitated patients were not compatible with goals of care requested by their surrogate decision makers.

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Rethink economics to help marginalized people

Nature, Published online: 10 June 2020; doi:10.1038/d41586-020-01753-3

2d

Great Lakes continue to rise; Lakes Michigan, Huron likely to top records September

Experts predict record-breaking levels this summer as the Great Lakes continue to rise as two of the lakes and Lake St. Clair set new monthly records in May.

2d

Cold war with China is the wrong way to define US policy in Africa

Beijing has used the pandemic to enhance its reputation, while faith in the west has taken a knock

2d

Acoustics put a fresh spin on electron transitions

Electrons are very much at the mercy of magnetic fields, which scientists can manipulate to control the electrons and their angular momentum—i.e. their "spin."

2d

Proposed seismic surveys in Arctic Refuge likely to cause lasting damage

Winter vehicle travel can cause long-lasting damage to the tundra, according to a new paper by University of Alaska Fairbanks researchers published in the journal Ecological Applications.

2d

Acoustics put a fresh spin on electron transitions

Electrons are very much at the mercy of magnetic fields, which scientists can manipulate to control the electrons and their angular momentum — i.e. their 'spin.'

2d

Proposed seismic surveys in Arctic Refuge likely to cause lasting damage

Winter vehicle travel can cause long-lasting damage to the tundra, according to a new paper by University of Alaska Fairbanks researchers. Scars from seismic surveys for oil and gas exploration in the Arctic National Wildlife Refuge remained for decades, according to the study. The findings counter assertions made by the Bureau of Land Management in 2018 that seismic exploration causes no 'signifi

2d

Penn Med students create apenndx, a new journal for body and spirit in the age of COVID-19

In the beginning of this past school year, a bunch of first-year University of Pennsylvania medical students gathered to discuss creating a new student magazine. A diverse group of young people with eclectic talents, backgrounds, and interests, they decided their new publication would welcome a broad range of work—the humanities as well as the sciences.

2d

Origins of genetic variability in seals

A new study led by Ludwig-Maximilians-Universitaet (LMU) in Munich researchers shows that fluctuations in population sizes in the past have had a significant effect on contemporary seal populations, and estimates the risk of genetic impoverishment in the species investigated.

2d

Origins of genetic variability in seals

A new study led by Ludwig-Maximilians-Universitaet (LMU) in Munich researchers shows that fluctuations in population sizes in the past have had a significant effect on contemporary seal populations, and estimates the risk of genetic impoverishment in the species investigated.

2d

India buoyed by jump in rare Asiatic lion numbers

The population of rare Asiatic lions in India has jumped by nearly a third in the past five years to almost 700, an official survey said, with Prime Minister Narendra Modi hailing the increase as an "excellent feat".

2d

Android 11 Will Help You Rein In Zombie App Permissions

The latest update to Google's operating system has a host of privacy and security improvements.

2d

India buoyed by jump in rare Asiatic lion numbers

The population of rare Asiatic lions in India has jumped by nearly a third in the past five years to almost 700, an official survey said, with Prime Minister Narendra Modi hailing the increase as an "excellent feat".

2d

OECD warns of deep economic scars from pandemic

Best-case scenario has global economy shrinking 6 per cent this year with UK faring particularly badly

2d

Strange Glass Spheres Found in Ancient Florida Clams Point to Meteor Strike

A decade-old student project unearths clues of a meteor strike in Florida fossils.

2d

Tiny brain stim implant doesn't need batteries or wires

A tiny surgical implant that can electrically stimulate the brain and nervous system without using a battery or wired power supply, research with rats shows. The neural stimulator draws its power from magnetic energy and is about the size of a grain of rice. It is the first magnetically powered neural stimulator that produces the same kind of high-frequency signals as clinically approved, battery

2d

New in Ethics and Human Research

Covid-19: Why Challenge Trials of Vaccines Could be Ethical, Despite Severe Risks, Equitably Sharing the Benefits and Burdens of Research. Early-view articles and the May-June 2020 issue.

2d

Mozart may reduce seizure frequency in people with epilepsy

A new clinical research study by Dr. Marjan Rafiee and Dr. Taufik Valiante of the Krembil Brain Institute at Toronto Western Hospital, part of University Health Network, has found that a Mozart composition may reduce seizure frequency in patients with epilepsy.

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Marijuana concentrates spike THC levels but don't boost impairment

A study of 121 regular users of legal market cannabis found that higher potency does not necessarily mean greater intoxication. It also found that while balance and memory are impaired immediately after use, that impairment fades within in an hour.

2d

Oncotarget: Hyperprogression to immune blockade followed by a response with cabozantinib

Volume 11, Issue 22 of @Oncotarget reported that more and more patients receive first-line treatment with immunotherapy combinations and not all patients respond in metastatic renal cell carcinoma.

2d

COVID-19 mouse model will speed search for drugs, vaccines

Researchers at Washington University School of Medicine in St. Louis have developed a mouse model of COVID-19 that is expected to speed up the search for drugs and vaccines for the potentially deadly disease.

2d

Oncotarget: Adoptive cell therapy in combination with checkpoint inhibitors

Volume 11, Issue 22 of @Oncotarget reported that there are rationale and evidence supporting immune therapy in Ovarian Cancers. The authors investigated the potential for adoptive cell therapy from in vitro expanded tumor-infiltrating lymphocytes in combination with checkpoint inhibitors and conducted immunological testing of ex vivo expanded TILs.

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Oncotarget: The role of EGFR mutations in predicting recurrence in lung adenocarcinoma

Volume 11, Issue 22 of @Oncotarget reported that while lobectomy can improve mortality in this group, about 30 55% of patients will experience disease recurrence.

2d

Potent tetrahydroquinolone can eliminate parasites that cause toxoplasmosis and malaria

Researchers discovered a lead compound that can significantly reduce or eliminate toxoplasmosis as well as malaria. These compounds are highly effective against multiple drug-resistant strains of plasmodia in vitro.

2d

NASA finds post-tropical depression Cristobal soaking the Great Lakes

NASA's GPM satellite gathered data on what is now Post-Tropical Cyclone Cristobal and revealed some areas of heavy rain were occurring. Cristobal was bringing rainfall and gusty winds to the Great Lakes Region and still generating warnings.

2d

People make irrational decisions rationally

Online health information is deemed doubly less trustworthy if the text includes both "shouting" and spelling errors together, according to a new study at Brighton and Sussex Medical School (BSMS).

2d

Extinct camelids reveal insights about North America's ancient savannas

A new study looking at extinct camelids—ancestors of today's camels and llamas—tells the story of North America's ancient savannas and highlights how past climatic and environmental conditions influenced the composition of mammalian faunas.

2d

What makes a giant jellyfish's sting deadly

With summer on the way, and some beaches reopening after COVID-19 shutdowns, people will be taking to the ocean to cool off on a hot day. But those unlucky enough to encounter the giant jellyfish Nemopilema nomurai (also known as Nomura's jellyfish) might wish they had stayed on shore. Now, researchers reporting in ACS' Journal of Proteome Research have identified the key toxins that make the crea

2d

COVID-19 antibody tests: How reliable are they?

With stay-at-home orders expiring around the world, many hope that COVID-19 antibody testing will help businesses and institutions reopen safely. Determining whether people have been infected with SARS-CoV-2 is a key tool in responding to the pandemic, but it is not a magic bullet. A feature article in Chemical & Engineering News, the weekly newsmagazine of the American Chemical Society, details t

2d

Will lockdown loneliness make us loners?

Over the past few months at least half of the world's population has been affected by some form of lockdown due to COVID-19, and many of us are experiencing the impact of social isolation. Loneliness affects both mental and physical health, but counterintuitively it can also result in a decreased desire for social interaction. To understand the mechanics of this paradox, UCL researchers based at t

2d

Will lockdown loneliness make us loners?

Over the past few months at least half of the world's population has been affected by some form of lockdown due to COVID-19, and many of us are experiencing the impact of social isolation. Loneliness affects both mental and physical health, but counterintuitively it can also result in a decreased desire for social interaction. To understand the mechanics of this paradox, UCL researchers based at t

2d

Satellites can spot eco damage from fog loss

It's possible to use satellite data to measure the threat of climate change to ecological systems that depend on water from fog, researchers report. Their new paper presents the first clear evidence that the relationship between fog levels and vegetation status is measurable using remote sensing. The discovery opens up the potential to easily and rapidly assess fog's impact on ecological health a

2d

Kissing bugs also find suitable climatic conditions in Europe

An infection with Chagas disease is only possible in Latin America since the insect species that spread the disease only occur there. Scientists at Goethe University and the Senckenberg Society for Natural Research have now used ecological niche models to calculate the extent to which habitats outside of the Americas may also be suitable for the bugs.

2d

Responding to challenges of older adults with COVID-19

Older adults with COVID-19 who survive hospitalizations and return to their homes confront substantial health challenges and an unpredictable future. Early evidence suggests that complex and long-term physical, functional, cognitive, and emotional negative health consequences will be the norm for them. However, the trajectories of health care needs of older adults with COVID-19 in the weeks and mo

2d

Experts outline research methods to study puberty suppression impacts on brains of transgender youth

A new set of expert consensus-based recommendations lays out how best to study possible neurodevelopmental impacts of pubertal suppression treatment in transgender youth. Developed by a consensus panel of 24 international scientists, the recommendations were published in the journal Transgender Health.

2d

New recommendations on genetic testing for prostate cancer

Genetic testing for prostate cancer is still not common. New guidelines show why it's important, and which genes to test for.

2d

NASA finds post-tropical depression Cristobal soaking the Great Lakes

NASA's GPM satellite gathered data on what is now Post-Tropical Cyclone Cristobal and revealed some areas of heavy rain were occurring. Cristobal was bringing rainfall and gusty winds to the Great Lakes Region and still generating warnings.

2d

Oncotarget: miR-151a enhances Slug dependent angiogenesis

Volume 11, Issue 23 of @Oncotarget reported that the authors have previously established that mi R-151a functions as an onco-mi R in non-small cell lung cancer cells by inducing partial EMT and enhancing tumor growth.

2d

Potential high-risk clones identified among S. maltophilia strains in European hospitals

Stenotrophomonas maltophilia are increasingly recognized as significant opportunistic pathogens in healthcare settings worldwide, the global spread of multidrug-resistant strains of this species being the most serious concern. Epidemiological studies are important to identify particular lineages or strains exhibiting clinically relevant phenotypes and to make knowledge-driven healthcare decisions.

2d

Potential high-risk clones identified among S. maltophilia strains in European hospitals

Stenotrophomonas maltophilia are increasingly recognized as significant opportunistic pathogens in healthcare settings worldwide, the global spread of multidrug-resistant strains of this species being the most serious concern. Epidemiological studies are important to identify particular lineages or strains exhibiting clinically relevant phenotypes and to make knowledge-driven healthcare decisions.

2d

Considering health when switching to cleaner electricity

Power plants that burn coal and other fossil fuels emit not only planet-warming carbon dioxide, but also pollutants linked to breathing problems and premature death. Policies proposed to mitigate climate change, however, often fail to fully account for the health benefit of switching to cleaner technologies. In a new study published in ACS' Environmental Science & Technology, researchers show that

2d

IBM promises no more facial recognition software

IBM sent a latter to Congress stating it will no longer research, develop, or sell facial recognition software. AI-based facial recognition software remains widely available to law enforcement and private industry. Facial recognition software is far from infallible, and often reflects its creators' bias. In what strikes one as a classic case of shutting the stable door long after the horse has bo

2d

Three COVID-19 Vaccines Are Ready For Final Stage of Testing

Over the course of the summer, the federal government plans to fund three phase III clinical trials for experimental coronavirus vaccines. Each of the three vaccines will undergo this final phase of testing on about 30,000 human participants, The Wall Street Journal reports , half of whom will receive a vaccine injection and the other half an inert placebo. The vaccine developed by Moderna Inc wi

2d

Earlier lockdown could have halved UK deaths, says PM's ex-adviser

Neil Ferguson of Imperial College says imposing coronavirus restrictions a week before would have drastically reduced toll

2d

Population ecology: Origins of genetic variability in seals

A new study led by Ludwig-Maximilians-Universitaet (LMU) in Munich researchers shows that fluctuations in population sizes in the past have had a significant effect on contemporary seal populations, and estimates the risk of genetic impoverishment in the species investigated.

2d

ASTRO issues first clinical guideline on radiation therapy for cervical cancer

A new clinical guideline from the American Society for Radiation Oncology (ASTRO) provides recommendations for radiation therapy to treat patients with nonmetastatic cervical cancer. The guideline–ASTRO's first for cervical cancer–outlines indications and best practices for external beam radiation therapy and brachytherapy in the postoperative and definitive settings. Recommendations also addres

2d

National Autism Indicators Report: the connection between autism and financial hardship

A.J. Drexel Autism Institute released the 2020 National Autism Indicators Report highlighting the financial challenges facing households of children with autism spectrum disorder (ASD), including higher levels of poverty, material hardship and medical expenses.

2d

What can maritime shipping learn from brain network science?

Dr. Carlo Vittorio Cannistraci from TU Dresden's Biotechnology Center (BIOTEC) is focusing his research on network science applied to biological systems and neuroscience. At the Biomedical Cybernetics Lab, he heads an translational study showing how network science computational theories used for brain analysis can help to understand global shipping networks and their impact on world economy. The

2d

People make irrational trust decisions precisely

Online health information is deemed doubly less trustworthy if the text includes both "shouting" and spelling errors together, according to a new study at Brighton and Sussex Medical School (BSMS).

2d

Sounds of sickness: Perceptions of coughs, sneezes not diagnosed accurately

You're standing in the store's check-out line, and the customer behind you viciously coughs.

2d

Link between liver and heart disease could lead to new therapeutics

A newly published study of flies found that protecting liver function also preserves heart health. The research could lead to new therapeutic approaches in human health and illuminate the role of understudied organelles known as peroxisomes.

2d

Extinct camelids reveal insights about North America's ancient savannas

A new study looking at extinct camelids — ancestors of today's camels and llamas — tells the story of North America's ancient savannas and highlights how past climatic and environmental conditions influenced the composition of mammalian faunas.

2d

COVID-19 antibody tests: How reliable are they?

With stay-at-home orders expiring around the world, many hope that COVID-19 antibody testing will help businesses and institutions reopen safely. Determining whether people have been infected with SARS-CoV-2 is a key tool in responding to the pandemic, but it is not a magic bullet. A feature article in Chemical & Engineering News , the weekly newsmagazine of the American Chemical Society, details

2d

Watch a Hoverbike-Riding Cop in Dubai Wipe Out Catastrophically

Hoverbike Wipe Out A video of a Dubai policeman crashing a Russian-built hoverbike from a dizzying altitude is going viral on social media. The video shows a cop taking off, then rapidly descending, losing control and crashing the futuristic hoverbike into the ground. The bikes rotor attachments appear to bend on impact, and then the whole bike dangerously flips over the pilot's head. Ride the Sc

2d

Undersized airways may explain why nonsmokers get COPD

A mismatch between airway and lung size may explain why some nonsmokers get COPD and some heavy smokers do not, according to a new study.

2d

First all-human mouse model of inherited prion disease

Human prion diseases include Creutzfeldt-Jakob disease (CJD) and Gerstmann-Sträussler-Scheinker disease (GSS). A new study reports a significant advance in the development of mouse models of human prion diseases. The study demonstrates spontaneous formation of disease-relevant, transmissible prion protein assemblies in mice bearing only human forms of the prion protein.

2d

Study on shorebirds suggests that when conserving species, not all land is equal

Researchers may have solved the long-standing puzzle of why migratory shorebirds around the world are plummeting several times faster than coastal ecosystems are being developed. They discovered that shorebirds overwhelmingly rely on tidal zones closest to dry land, which are most often lost to development. The findings suggest that protecting species requires a detailed understanding of how anima

2d

Immune cell discovery could improve the fight against hepatitis B

Researchers have identified and described a new and unique subset of human cells that are involved in the immune response against hepatitis B (HBV) infection. The discovery could help develop new treatments for HBV and inform future vaccine design.

2d

An unusual cobalt compound

A research team has manufactured a novel, highly versatile cobalt compound. The molecules of the compound are stable, extremely compact and have a low molecular weight so that they can be evaporated for the production of thin films. Accordingly, they are of interest for applications such as battery or accumulator production. Because of their special geometry, the compound also has a very unusual s

2d

Study proves that magma chambers can be totally molten

Basaltic magma chambers may develop as large bodies of crystal-free melts in the Earth's crust. This study challenges a recently-emerged paradigm that magma chambers are huge masses of crystal-rich mush – in other words, crystals with just a very small amount of melt.

2d

New antivirals for influenza and Zika

Researchers have deployed synthetic amyloids to trigger protein misfolding as a strategy to combat the influenza A and Zika virus.

2d

An unusual cobalt compound

A research team has manufactured a novel, highly versatile cobalt compound. The molecules of the compound are stable, extremely compact and have a low molecular weight so that they can be evaporated for the production of thin films. Accordingly, they are of interest for applications such as battery or accumulator production. Because of their special geometry, the compound also has a very unusual s

2d

Vad Östersjölaxen äter beror på vilken älv den simmat från

Vad och var en lax äter till havs i Östersjön styrs till stor del av dess kroppsstorlek och av vilken älv den kommer ifrån, visar en ny doktorsavhandling från SLU. Att olika stora laxar från olika älvar lever sitt liv i olika havsmiljöer får konsekvenser; för hur de mår, hur de växer, hur bra de lyckas föröka sig – och därmed också hur produktiv en laxälv blir. En avhandling från bidrar till en ö

2d

Noise disturbs the brain's compass

Our sense of direction tends to decline with age. Researchers report on new insights into the causes of this phenomenon. These study results could contribute to the development of diagnostic tools for early detection of dementia.

2d

Re-trafficking proteins to fight Salmonella infections

New study demonstrates how monitoring all cellular proteins over time and space can improve our understanding of host-pathogen interactions.

2d

Patterns in permafrost soils could help climate change models

A team of scientists spent the past four summers measuring permafrost soils across a 5,000 square-mile swath of Alaska's North Slope. While working to buildup a much-needed soil dataset, their measurements revealed an important pattern: The hydrologic properties of different permafrost soil types are very consistent, and can be predicted based on the surrounding landscape.

2d

California's climate refugia: Mapping the stable places

Some landscapes can hold their own against climate change better than others. A new study maps these places, called 'climate refugia,' where existing vegetation is most likely to buffer the impacts of climate change through the end of the century.

2d

Considering health when switching to cleaner electricity

Power plants that burn coal and other fossil fuels emit not only planet-warming carbon dioxide, but also pollutants linked to breathing problems and premature death. Policies proposed to mitigate climate change, however, often fail to fully account for the health benefit of switching to cleaner technologies. In a new study published in ACS' Environmental Science & Technology, researchers show that

2d

Flu vaccine coverage linked to reduced antibiotic prescribing

Researchers at CDDEP, Johns Hopkins University, and the University of Maryland School of Medicine assessed the impact of influenza vaccination coverage on state-level antibiotic prescribing rates in the United States between 2010 and 2017.

2d

What makes a giant jellyfish's sting deadly

With summer on the way, and some beaches reopening after COVID-19 shutdowns, people will be taking to the ocean to cool off on a hot day. But those unlucky enough to encounter the giant jellyfish Nemopilema nomurai (also known as Nomura's jellyfish) might wish they had stayed on shore. Now, researchers reporting in ACS' Journal of Proteome Research have identified the key toxins that make the crea

2d

Self-healing bone cement

Material scientists at the University of Jena have developed a bone replacement based on calcium phosphate cement and reinforced with carbon fibers. The fibers increase damage tolerance and ensure that cracks in the material repair themselves.

2d

Coronavirus R number hides raised risk for minority ethnic groups

Nature, Published online: 10 June 2020; doi:10.1038/d41586-020-01740-8

2d

Make space for scientists from minority groups to share their experiences

Nature, Published online: 10 June 2020; doi:10.1038/d41586-020-01739-1

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This might be the oldest creature to have ever lived on land

An ancient millipede-like creature living in Scotland may have been the first creature to live on land. A fossil representing Kampecaris obanensis was first discovered in 1899 on the Scottish isle of Kerrera. It's now been radiometrically dated to 425 million years ago. If the new research is correct about the age of the fossil, then scientists have been greatly underestimating how rapidly bugs a

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Reusing chicken litter shows benefits

Beneficial bacteria in reused poultry litter can reduce Salmonella levels.

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Bees? Please. These plants are putting ants to work

This is the first plant species in the world found to have adapted traits that enables a mutually beneficial relationship with ants.

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New explanation for neutrino anomalies in Antarctica

A new article provides a new explanation for two recent strange events that occurred in Antarctica — high-energy neutrinos appearing to come up out of the Earth on their own accord and head skyward.

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Twitter fight: Birds use social networks to pick opponents wisely

Researchers say animals such as monk parakeets seem to understand where they fit in a dominance hierarchy and pick their fights accordingly. This high-level social information helps animals improve or maintain their status.

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Scientists lament 'Humpty Dumpty' effect on world's spectacular, rare wildlife

A new study reveals how runaway human population growth collapses the role of wildlife in the world's ecosystems.

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Tinder Reverses Decision to Ban Black Lives Matter Supporters

Black Lives Matter Popular dating app Tinder has reportedly blocked dozens of users for encouraging others to sign petitions and donate to Black Lives Matter-related causes. Some have even been banned for adding the BLM hashtag to their profile, the BBC reports . Yesterday I changed my tinder bio to "All Black Lives Matter. If you don't think so, swipe left" and my account was BANNED @Tinder pic.

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Nutraceuticals for promoting longevity

The review, published in Current Nutraceuticals, offers a special focus on the nutraceuticals that impact insulin-like growth factor 1 receptor signaling and sirtuin activity in mediating longevity and healthspan.

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Embryo breakthrough hailed as crucial to birth defect research

Scientists for first time reconstruct cells with human features at crucial 18-21 day stage

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Fauci Says "Worst Nightmare" Pandemic Is Worse Than He Ever Feared

Dr. Anthony Fauci, the White House's top infectious disease expert who's been spearheading the fight against the coronavirus, shared an uncharacteristic degree of doom and gloom during a recent conference with biotech executives. During a talk on Tuesday, Fauci said that COVID-19 is his "worst nightmare," The New York Times reports . "In a period of four months, it has devastated the whole world,

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Stammen påvirker mere end ordene, der kommer ud af munden

Det er ikke atypisk, at børn stammer – de fleste holder dog op igen.

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Earth Imaging Satellites Will Hitch a Ride on Upcoming SpaceX Starlink Launches

SpaceX launches 60 Starlink satellites with a single Falcon 9 rocket. Satellite imaging startup Planet closed a deal to buy Google's SkySat network in 2017, but it's not stopping with the existing constellation. Planet aims to become the fastest satellite imaging firm thanks to a new deal with SpaceX. Planet will squeeze some of its satellites into some upcoming Starlink launches , giving custome

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Läkemedel mot alkoholism testat mot sexmissbruk

Ett läkemedel som annars används för behandling av alkoholmissbruk har testats på män som lider av tvångsmässig sexualitet, så kallat sexmissbruk. Resultaten är lovande och forskarna planerar nu för en större studie. – Det vore mycket positivt med fler möjligheter till behandling av tvångsmässig sexualitet. Eftersom tillståndet har likheter med andra typer av missbruk, är det inte ologiskt om läk

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The US could shift to 90-percent renewable energy by 2035 at no extra cost

Prices for solar panels and installations have plummeted in recent years. (Pexels/) Jeremy Deaton writes for Nexus Media . You can follow him @deaton_jeremy . This story was published in partnership with Nexus Media , a syndicated newswire covering climate, energy, policy, art, and culture. Experts disagree about how fast the US can replace coal and gas-fired power plants with zero-carbon electri

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Fluid mechanics mystery solved

An environmental engineering professor has solved a decades-old mystery regarding the behavior of fluids, a field of study with widespread medical, industrial and environmental applications.

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Black hole's heart still beating

The first confirmed heartbeat of a supermassive black hole is still going strong more than ten years after first being observed.

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Media stereotypes confound kids' science ambitions

White lab coats and dangerous experiments all epitomize the 'mad scientist' from many a Hollywood blockbuster but, even beyond the silver screen, the stereotype lives on, and according to new research, it could mar the next generation of potential scientists.

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Scientists warn against 'greenwashing' of global coastal developments

An international team of scientists has said the artificial structures and reclaimed land that are now commonplace in coastal urban areas all over the world are often poor surrogates for the natural environment they replace.

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National survey shows different bacteria on cell phones and shoes

The largest study of its kind in the US shows thousands of different types of bacteria living on cell phones and shoes, including groups that have barely been studied by scientists.

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Nature's 'slow lanes' offer hope for species feeling heat of climate change

Pockets of landscape less prone than adjacent areas to disturbances like fire and drought may hold the key for scientists, conservationists and land managers seeking to preserve vulnerable species in a changing climate.

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Levels of SARS-CoV-2 RNA in sewage rose with COVID-19 cases in Dutch cities

Scientists have detected RNA from the new coronavirus, SARS-CoV-2, in the feces of people with COVID-19. So it stands to reason that the viral RNA could end up in city sewage, where it could be used to monitor prevalence of the disease. Now, researchers reporting in ACS' Environmental Science & Technology Letters have detected rising SARS-CoV-2 RNA levels in sewage from several cities in the Nethe

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Immunodominant epitopes identified for designing peptide-based vaccine against SARS-CoV-2

Researchers have identified a set of potential immunodominant epitopes from the SARS-CoV-2 proteome. These epitopes are capable of generating both antibody- and cell-mediated immune responses. The findings of this work may thus contribute to developing a peptide vaccine against SARS-CoV-2 infections which can stop the COVID-19 outbreak and future pandemics caused by coronaviruses.

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Ebola transmission risks would be taken more seriously with ground-up interventions

A study led by the University of Kent's Durrell Institute of Conservation and Ecology (DICE) has found significant differences in disease risk perception and channels of information about Ebola virus disease (EVD) in rural areas and urban centres of Guinea, West Africa.

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A continuous simulation of Holocene effective moisture change in East and Central Asia

Based on a transient climate evolution model, a lake energy balance model and a lake water balance model, the effective moisture change during the Holocene in East and Central Asia is continuously and quantitatively traced by constructing a virtual lake system. Furthermore, according to the changes of precipitation, runoff, evaporation, solar radiation and atmosphere radiation, researchers complet

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Will lockdown loneliness make us loners?

Over the past months at least half of the world's population has been affected by some form of lockdown due to COVID-19. Many are experiencing the impact of social isolation. Loneliness affects both mental and physical health, but counterintuitively it can also result in a decreased desire for social interaction. To understand the mechanics of this paradox, UCL researchers based at the Wolfson Ins

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Yale researchers find potential treatment for Rett Syndrome

An experimental cancer drug can extend the life of mice with Rett Syndrome, a devastating genetic disorder that afflicts about one of every 10,000 to 15,000 girls within 6 to 18 months after birth, Yale researchers report June 10 in the journal Molecular Cell.

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C. diff captures blood cell cofactor to build defensive shield

In a cruel twist, the bacterium Clostridioides difficile (C. diff) makes us bleed and then uses our blood to defend itself against us.

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Study investigates potential for gut microbiome to alter drug safety and efficacy

Princeton University researchers have developed an approach for studying how the gut microbiome chemically alters oral medications, unlocking possibilities for improving efficacy, reducing side effects, and creating drugs personalized to an individual's microbiome.

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Team develops online atlas of human immunome for precision medicine

Scientists from the SingHealth Duke-NUS Academic Medical Centre (AMC) have developed an interactive web-based atlas of the human immunome, or genes and proteins that make up the immune system. Known as EPIC (Extended Polydimensional Immunome Characterisation), the atlas hosts a comprehensive, expanding immune cell database ranging from cord blood to adult stages, and can be used by the scientific

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Team develops online atlas of human immunome for precision medicine

Scientists from the SingHealth Duke-NUS Academic Medical Centre (AMC) have developed an interactive web-based atlas of the human immunome, or genes and proteins that make up the immune system. Known as EPIC (Extended Polydimensional Immunome Characterisation), the atlas hosts a comprehensive, expanding immune cell database ranging from cord blood to adult stages, and can be used by the scientific

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World's first spherical artificial eye has 3D retina

Scientists have developed the world's first 3D artificial eye with capabilities better than existing bionic eyes and in some cases, even exceed those of the human eyes, bringing vision to humanoid robots and new hope to patients with visual impairment.

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Microplastic background pollution in the Curonian Spit beach

An article written by an international team of scientists was published recently in Marine Pollution Bulletin magazine. The team included representatives of the Russian Academy of Sciences Shirshov Institute of Oceanology Atlantic Department, the Immanuel Kant Baltic Federal University, and the Institute of Baltic Sea Research (Warnemunde, Germany). The article was aimed at studying Curonian Spit

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Cellular stress causes cancer cell chemoresistance

There is a broad range of mechanisms associated with chemoresistance, many of which to date are only poorly understood. The so-called cellular stress response—a set of genetic programs that enable the cells to survive under stressful conditions—plays a key role in the development of numerous diseases and in chemoresistance. A better understanding of the cellular stress response pathways is therefo

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Clostridioides difficile captures blood cell cofactor to build defensive shield

In a cruel twist, the bacterium Clostridioides difficile (C. diff) makes us bleed and then uses our blood to defend itself against us.

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Cellular stress causes cancer cell chemoresistance

There is a broad range of mechanisms associated with chemoresistance, many of which to date are only poorly understood. The so-called cellular stress response—a set of genetic programs that enable the cells to survive under stressful conditions—plays a key role in the development of numerous diseases and in chemoresistance. A better understanding of the cellular stress response pathways is therefo

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Georgia's Failure Shows How Not to Run an Election in the Pandemic

Limiting in-person polling sites makes it both harder to vote and more dangerous.

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World's first spherical artificial eye has 3D retina

Scientists have developed the world's first 3D artificial eye with capabilities better than existing bionic eyes and in some cases, even exceed those of the human eyes, bringing vision to humanoid robots and new hope to patients with visual impairment.

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Study of 62 countries finds people react similarly to everyday situations

A new study asserts the world population may have much more in common than it has differences. The researchers' finding: 'The difference among countries is smaller than expected; and the difference within countries is much greater.' In other words, people from different countries aren't that different, and people within the same country aren't as similar as expected.

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Signatures of fractional electronic charge observed in topological insulators

Because electrons — the subatomic particles that carry electricity — are elementary particles and cannot be split, fractions of electronic charge are not normally encountered. Despite this, researchers have recently observed the signature of fractional charges ranging from e/4 to 2e/3 in exotic materials known as topological crystalline insulators.

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Liquid metals break down organic fuels into ultra-thin graphitic sheets

For the first time, researchers show the synthesis of ultra-thin graphitic materials at room temperature using organic fuels (which can be as simple as basic alcohols such as ethanol).

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Beavers are diverse forest landscapers

Beavers are ecosystem engineers that cut down trees to build dams, eventually causing floods. Beaver-induced floods make forest landscapes and habitats increasingly diverse, but very little is known about the long-term effects of beavers on European landscapes. Researchers at the University of Eastern Finland and the University of Helsinki examined the history and occurrence of beaver-induced floo

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Scientists present new method for remote sensing of atmospheric dynamics

Physicists from the Moscow Institute of Physics and Technology have developed a new method for wind speed remote measurements. It may complement the widely employed lidar and radar sensing techniques.

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Surprisingly strong and deformable silicon

Researchers at ETH have shown that tiny objects can be made from silicon that are much more deformable and stronger than previously thought. In this way, sensors in smartphones could be made smaller and more robust.

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Potential high-risk clones identified among S. maltophilia strains in European hospitals

UAB researchers, based on a collection of clinical isolates from several countries, have established a link between the cell-to-cell communication system (the quorum sensing) and the virulence and resistance phenotypes in Stenotrophomonas maltophilia. In addition they have identified potential high-risk clones circulating worldwide.

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Fewer complications after organ transplantation

A large international study coordinated by University Hospital Regensburg and Charité – Universitätsmedizin Berlin has demonstrated the safety of new cell therapy approaches for use in kidney transplant recipients. Transplant recipients were shown to require lower levels of immunosuppression in order to prevent organ rejection. This reduces the risk of side effects such as viral infections. Result

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Noise disturbs the brain's compass

Our sense of direction tends to decline with age. In 'Nature Communications', researchers from the German Center for Neurodegenerative Diseases and experts from the USA report on new insights into the causes of this phenomenon. These study results could contribute to the development of diagnostic tools for early detection of dementia.

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Simulations on biologically relevant time scales

Freiburg researchers deliver new insights into molecular mechanisms relevant for drug development.

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How COVID-19 has altered sleep in the United States and Europe

Two studies in Current Biology show that relaxed school and work schedules and more time spent at home has led people to sleep more on average with less 'social jetlag' as indicated by a reduced shift in sleep timing and duration on work days versus free days. But, at the same time, one of the studies also finds that the pandemic has taken a toll when it comes to self-reported sleep quality.

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How would a coronavirus vaccine work and will we even get one? – video explainer

Science editor Ian Sample explains how vaccines work, runs through some of the main obstacles to creating one for coronavirus and preparing it for public use, and tells us which scenario he thinks is most realistic in the next 18 months Continue reading…

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Clostridioides difficile captures blood cell cofactor to build defensive shield

In a cruel twist, the bacterium Clostridioides difficile (C. diff) makes us bleed and then uses our blood to defend itself against us.

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Human eggs release chemicals that attract some sperm more than others

A person's eggs release chemicals after sex that preferentially attract sperm from certain people, which might help explain why some people have fertility problems

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How to turn your dissatisfaction into action | Yvonne Aki-Sawyerr

After the devastating rebel invasion of Freetown in 1999 and the Ebola epidemic in 2014, Yvonne Aki-Sawyerr, mayor of the city, refused to be paralyzed by her frustration with the status quo. Instead, she used her anger as a catalyst for action. In this inspiring talk, she shares how she transformed her city by taking the risks necessary to bring about dramatic change — and shows how you can find

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Förhistoriska enzymer kan ge grönare kemi

Genom att återskapa flera miljarder år gamla enzymer, och programmera om dem, har forskare i Uppsala hittat sätt att skynda på helt andra kemiska reaktioner än vad deras moderna enzymer klarar av. Metoden kan användas för att utveckla hållbara lösningar inom biotekniken eller för kemisk nedbrytning av miljögifter. – Vi använder en mjukvara för att simulera miljarder år av evolution och vi lyckade

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Cellular stress causes cancer cell chemoresistance

Resistance of cancer cells against therapeutic agents is a major cause of treatment failure, especially in recurrent diseases. An international team around the biochemists Robert Ahrends from the University of Vienna and Jan Medenbach from the University of Regensburg identified a novel mechanism of chemoresistance which has now been published in "Nature Communications".

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New 'sun clock' quantifies extreme space weather switch on/off

Extreme space weather events can significantly impact systems such as satellites, communications systems, power distribution and aviation. They are driven by solar activity which is known to have an irregular but roughly 11 year cycle. By devising a new, regular 'sun clock', researchers have found that the switch on and off of periods of high solar activity is quite sharp, and are able to determin

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First confirmation of new theory by metamaterial

Physicists in Würzburg have experimentally demonstrated a novel effect for the first time by exploiting topological metamaterials.

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Scientists reveal regional coupled C-N-H2O cycle processes and associated driving mechanisms

From a molecular level to an ecosystem scale, different coupling mechanisms take place during coupled carbon-nitrogen-water (C-N-H2O) cycles, of which essential are water flux and related biogeochemical processes through physicochemical reactions associated with terrestrial and aquatic ecosystems that will subsequently impact regional gross primary productivity (GPP) and C and N exchanges during a

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Flexible and recyclable optoelectronics move a step closer

A cheap, flexible and recyclable alternative to indium tin oxide in electrodes has been presented by researchers in Australia, where a nanosphere lithography process was used to create transparent metal nanomesh.

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Microplastic background pollution in the Curonian Spit beach

An article written by an international team of scientists was published recently in Marine Pollution Bulletin magazine. The team included representatives of the Russian Academy of Sciences Shirshov Institute of Oceanology Atlantic Department, the Immanuel Kant Baltic Federal University, and the Institute of Baltic Sea Research (Warnemunde, Germany)

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Great tasting K-cups for your morning cup of coffee

A convenient and compostable way to caffeinate. (Farhan Khan via Unsplash/) Keurig machines are hard to beat in terms of convenience, but can you get truly exquisite coffee from a pod? Yes. Specialty coffee makers all over the globe have adopted the pod as an efficient vehicle for bringing their brews to your mugs. If making a french press or pour over in the morning slows you down, opt for a hig

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Simulations on biologically relevant time scales achieved

Molecular dynamics simulations (MD) have become a ubiquitous tool in modern life sciences. In these simulations, the interactions between atoms and molecules and their resulting spatial movements are iteratively calculated and analyzed. Scientists are currently trying to gain access to biologically relevant length and time scales using this approach in order to describe molecular processes such as

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Advances in CAR-T Research and Design for Solid Tumors

Download this eBook to learn flow cytometry and live-cell imaging solutions for CAR-T research!

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Simulations on biologically relevant time scales achieved

Molecular dynamics simulations (MD) have become a ubiquitous tool in modern life sciences. In these simulations, the interactions between atoms and molecules and their resulting spatial movements are iteratively calculated and analyzed. Scientists are currently trying to gain access to biologically relevant length and time scales using this approach in order to describe molecular processes such as

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Antarctic sea-ice models improve for the next IPCC report

The world of climate modeling is complex, requiring an enormous amount of coordination and collaboration to produce. Models feed on mountains of different inputs to run simulations of what a future world might look like, and can be so big—in some cases, lines of code in the millions—they take days or weeks to run. Building these models can be challenging, but getting them right is critical for us

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What is the science behind the UK's coronavirus distancing rules?

Experts reveal why the 2-metre guidance matters and the importance of opening doors and windows Coronavirus – latest updates See all our coronavirus coverage Since the coronavirus outbreak reached the UK, health officials have recommended people stay at least 2 metres apart to reduce their risk of picking up the infection or spreading it to others. But in recent weeks, as the impact of the lockdo

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First confirmation of new theory by metamaterial

Topological metamaterials are applied as a novel platform to explore and study extraordinary effects. Instead of using natural materials, researchers artificially arrange the constituents of a topological metamaterial in a regular structure. Such an arrangement is analogous to a solid state in which the atoms form a crystal lattice. Usually, these platforms are used to simulate particular properti

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What maritime shipping can learn from brain network science

Dr. Carlo Vittorio Cannistraci from TU Dresden's Biotechnology Center (BIOTEC) is focusing his research on network science applied to biological systems and neuroscience. At the Biomedical Cybernetics Lab, he heads an translational study showing how network science computational theories used for brain analysis can help to understand global shipping networks and their impact on world economy. The

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Surprising features of mitochondrial protein synthesis uncovered

Researchers at Karolinska Institutet have uncovered surprising features of mitochondrial protein synthesis. The study, published in Nature Communications, sheds light on the fundamental mechanisms used by the cell's power plant.

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Glycolysis involved in immunosuppression by polyphenol; PCB2DG

Researchers at Shinshu University in Japan found that glycolysis is involved in immunosuppression by polyphenols. The functional mechanism of the procyanidin PCB2DG was elucidated for the first time.

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Liquid metals break down organic fuels into ultra-thin graphitic sheets

For the first time, FLEET researchers at UNSW, Sydney show the synthesis of ultra-thin graphitic materials at room temperature using organic fuels (which can be as simple as basic alcohols such as ethanol).

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We're not all equal in the face of the coronavirus

HLA genes, responsible for the adaptive immune system, differ between individuals. Thousands of possible variants have been identified. Not all of them are equally effective in fighting new viruses. The frequency of these variants varies from one population to another. In a study to be published in the journal HLA, scientists have pinpointed those that are potentially the most effective against th

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Study confirms the importance of informal learning in hospitals

The coronavirus crisis has shaken the structure of the Spanish healthcare system, leaving staff backed into a corner in their fight to beat the infection. However, doctors, nurses and other hospital and healthcare workers around the country have managed to acquire essential knowledge and adapt to these extraordinary circumstances in a matter of days. Plus, they've done it without attending courses

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Antarctic sea-ice models improve for the next IPCC report

All the new coupled climate models project that the area of sea ice around Antarctica will decline by 2100, but the amount of loss varies considerably between the emissions scenarios.

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Singapore team develops online atlas of human immunome for precision medicine

Interactive web-based tool 'EPIC' hosts and analyses comprehensive immune cell data to understand the mechanisms of immunity and how they respond to disease.* EPIC offers new possibilities into the prediction of clinical responses for precision medicine and the development of vaccines and therapies

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Review: A good vitamin D status can protect against cancer

A good vitamin D status is beneficial both in cancer prevention and in the prognosis of several cancers, according to a new research review. The anti-cancer effects of vitamin D are especially pronounced in the prevention and treatment of colon cancer and blood cancers. In addition, high vitamin D responsiveness can be linked to a smaller cancer risk. Vitamin D responsiveness varies between indivi

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New control technique could improve accuracy of industrial robots

The brains of humans and other animals often practice feedforward control as they are very good at whole-system modeling. But for machines, such modeling is computationally hard. However, researchers with Huazhong University of Science and Technology and the University of California at Berkeley have developed a new feedforward method that improves on conventional feedforward techniques.

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Healthcare professional revenue falls nearly 50% across nation during COVID-19 pandemic

In April 2020, in the midst of the COVID-19 pandemic, healthcare professional services declined 68 percent in utilization and 48% in revenue based on total estimated in-network amounts compared to April 2019 nationally. In the Northeast, the region hit hardest at that time by the pandemic, professionals experienced particularly sharp drops in utilization (80%) and revenue (79%) in April 2020.

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Falling clean energy costs can provide opportunity to boost climate action during COVID-19 recovery: UN

A UN report says 184 GW of clean power capacity was added in 2019, a 20 GW jump from the 164 GW added in 2018. However, the 12% increase in renewable GWs last year was delivered at roughly the same investment level as 2018: US$282.2 billion, demonstrating falling costs of renewables. New non-hydro renewable power currently foreseen through 2030: 826 GW; needed to get on track to Paris Agreement go

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The world is much more alike than different

A new study from UC Riverside asserts the world population may have much more in common than it has differences. The researchers' finding: 'The difference among countries is smaller than expected; and the difference within countries is much greater.' In other words, people from different countries aren't that different, and people within the same country aren't as similar as expected.

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Surprising features of mitochondrial protein synthesis uncovered

Researchers at Karolinska Institutet have uncovered surprising features of mitochondrial protein synthesis. The study, published in Nature Communications, sheds light on the fundamental mechanisms used by the cell's power plant.

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Claims that some diets can protect you from coronavirus are unfounded

Plenty of diets offer to boost your immune system to help protect you from covid-19, but there isn't any evidence they are true, says James Wong

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Cuba's clean rivers show the benefits of reducing nutrient pollution

For most of the past 60 years, the United States and Cuba have had very limited diplomatic ties. President Barack Obama started the process of normalizing U.S.-Cuba relations, but the Trump administration reversed this policy, sharply reducing interactions between the two countries.

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New 'sun clock' quantifies extreme space weather switch on/off

Extreme space weather events can significantly impact systems such as satellites, communications systems, power distribution and aviation. They are driven by solar activity which is known to have an irregular but roughly 11 year cycle. By devising a new, regular 'sun clock', researchers have found that the switch on and off of periods of high solar activity is quite sharp, and are able to determin

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Astrophysicists confirm cornerstone of Einstein's Theory of Relativity

An international collaboration of scientists has recorded the most accurate confirmation to date for one of the cornerstones of Einstein's theory of general relativity, 'the universality of free fall."

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Political divide turns everyday stuff into symbols

Political polarization is not only getting more intense, but also pulling in other differences of opinion, a study suggests. In the study of data from a national opinion survey, Daniel DellaPosta, assistant professor of sociology and social data analytics, says that opinions on many seemingly unconnected political issues—and even non-political issues—have become increasingly correlated ideologica

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Stop Training Police Like They're Joining the Military

When I entered the Washington, D.C., police academy in 2016 as a recruit officer in the district's volunteer police reserve corps, I quickly discovered that I was joining a paramilitary organization. My classmates and I practiced drill and formation, stood at attention when senior officials entered the room, and were grilled on proper boot-polishing methods. "Brilliantly shined boots are a hallma

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The Silence of the Never Facebookers

Updated at 1:14 p.m. ET on June 10, 2020. To commemorate the company's initial public offering in 2011, LinkedIn gave some of its employees a lucite cube emblazoned with the stock ticker, LNKD, on one side and "Next Play" on the reverse. That phrase encapsulates the business philosophy of Jeff Weiner, LinkedIn's CEO at the time. Weiner has said he borrowed "next play" from the Duke University bas

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Climate change, biodiversity loss and other global ills share root causes

The modern world seems to lurch from one crisis to another. What if that is because the crises have shared underlying causes, and therefore tackling them as if they were independent events is doomed to fail?

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Climate change, biodiversity loss and other global ills share root causes

The modern world seems to lurch from one crisis to another. What if that is because the crises have shared underlying causes, and therefore tackling them as if they were independent events is doomed to fail?

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Äldre tvingas samordna sin egen vård inom hemtjänsten

När äldreomsorgen delas upp mellan olika enheter och personer inom hemtjänsten, blir både kontinuiteten och tilliten i omsorgsrelationerna sämre. Samtidigt tvingas de äldre själva samordna sina omsorgsinsatser. Det leder till ett ökat ansvar för de anhöriga och aktualiserar frågan om obetalt hemarbete. Den nyliberala definitionen av omsorg, där vårdinsatser ses som varor som kan köpas och säljas

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Theon-Kepler bifocal telescope helps advance radial-shearing interferometry

Recently, researchers at Shanghai Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences have proposed a new kind of telescope structure, a Theon-Kepler bifocal telescope, to realize radial-shearing interferometry in common-path setup. This research has been published in Applied Optics.

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Beavers are diverse forest landscapers

Beavers are ecosystem engineers that cut down trees to build dams, eventually causing floods. Beaver-induced floods make forest landscapes and habitats increasingly diverse, but very little is known about the long-term effects of beavers on European landscapes. Researchers at the University of Eastern Finland and the University of Helsinki examined the history and occurrence of beaver-induced floo

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Wealth, water and wildlife—new study finds more biodiversity in richer neighbourhoods, especially in dry regions

A unique global study has found that wealthier neighborhoods in cities have more biodiversity in comparison to poorer ones—a pattern that scientists have called the "luxury effect." However, this study found that this 'effect' is far greater in the more arid regions of the world.

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Surprisingly strong and deformable silicon

Researchers at ETH and Empa have shown that tiny objects can be made from silicon that are much more deformable and stronger than previously thought. In this way, sensors in smartphones could be made smaller and more robust.

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Elon Musk: Tesla's Semi Truck is Officially Going Into Production

Tesla Semi According to a leaked email obtained by Reuters , Elon Musk has ordered the company to bring its commercial semi truck into "volume production." The news comes after the carmaker resumed production after a forced lockdown during the growing coronavirus outbreak. "Production of the battery and powertrain will take place at Giga Nevada," Musk wrote in the email , referring to the company

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Beavers are diverse forest landscapers

Beavers are ecosystem engineers that cut down trees to build dams, eventually causing floods. Beaver-induced floods make forest landscapes and habitats increasingly diverse, but very little is known about the long-term effects of beavers on European landscapes. Researchers at the University of Eastern Finland and the University of Helsinki examined the history and occurrence of beaver-induced floo

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Wealth, water and wildlife—new study finds more biodiversity in richer neighbourhoods, especially in dry regions

A unique global study has found that wealthier neighborhoods in cities have more biodiversity in comparison to poorer ones—a pattern that scientists have called the "luxury effect." However, this study found that this 'effect' is far greater in the more arid regions of the world.

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China reports progress in swine fever vaccine trials

A vaccine developed in China for African swine fever, which devastated the country's pig herd and caused pork prices to soar, is progressing smoothly, according to results reported on Wednesday.

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Wildlife activists welcome China's new pangolin protections

Wildlife activists on Wednesday welcomed China's decision to remove pangolin parts from its official list of traditional medicines, as Beijing steps up protection of the heavily-trafficked endangered mammal.

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Sverige måste dubbla sina ambitioner för att klara Parisavtalet

Trots att Sverige och Storbritannien har några av världens mest omfattande klimatlagar räcker det inte för att länderna ska klara sina åtaganden att hålla den globala uppvärmningen väl under två grader. Båda länderna måste mer än fördubbla sina ambitioner för att ha en rimlig chans att kunna leva upp till sina löften i Parisavtalet. Det är slutsatsen i en ny studie i tidskriften Climate Policy. –

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Slavoj Žižek LIVE: Pandemic! Protests! Panic!

The COVID-19 pandemic shocked societies and economies throughout the world. Now, the US is in the midst of powerful protests that are spreading across the globe. In this live session, moderated by political scientist Samo Burja , philosopher Slavoj Žižek will analyze this moment in history as it unfolds, discussing political narratives, revolutions, capitalism, and, of course, communism. And so o

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HKUST scientists develop world's first spherical artificial eye with 3D retina

An international team led by HKUST scientists has developed the world's first 3D artificial eye with capabilities better than existing bionic eyes and in some cases, even exceed those of the human eyes, bringing vision to humanoid robots and new hope to patients with visual impairment.

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Scientists reveal relationship between Dek and Intron retention during muscle stem cells quiescence

Adult stem cells are essential for tissue regeneration. However, the mechanisms underlying the activation of quiescent adult stem cells remain elusive. Recently, a team of HKUST scientists revealed that intron detention (IR) is a key to the mechanism; when stem cell enters quiescence exit, Dek releases conserved introns, which allow the cell to be activated.

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Breast cancer treatment costs highest among young women with metastatic cancer

In a fight for their lives, young women, age 18-44, spend double the amount of older women to survive metastatic breast cancer, according to a large statewide study by the University of North Carolina at Chapel Hill.

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Women generate lower travel-related greenhouse gas emissions, NZ study finds

Women use more diverse modes of travel and generate lower greenhouse gas emissions than men, despite men being more than twice as likely to travel by bike, a New Zealand study has found.

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China reports progress in swine fever vaccine trials

A vaccine developed in China for African swine fever, which devastated the country's pig herd and caused pork prices to soar, is progressing smoothly, according to results reported on Wednesday.

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Wildlife activists welcome China's new pangolin protections

Wildlife activists on Wednesday welcomed China's decision to remove pangolin parts from its official list of traditional medicines, as Beijing steps up protection of the heavily-trafficked endangered mammal.

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Moves are afoot in Africa to keep more women in science careers

Women scientists have a vital part to play in scientific leadership and in contributing to Africa's development and transformation. But they remain substantially under-represented in higher education and in science, technology, engineering, and mathematics (STEM). This is because women are generally seen and treated by society as being inferior and less capable than men. This then spills over into

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Erosion of the Himalayas governed by tectonic movements, limiting climate change impacts on landscape formation

Researchers from Centre de Recherches Pétrographiques et Géochimiques (CNRS / University of Lorraine), in collaboration with CEREGE have shown that erosion in the Himalayas is primarily governed by tectonic movements, which would limit the impact of climate change on the formation of Himalayan landscapes. Their study was published in Nature Geosciences on June 1, 2020.

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Scientists present new method for remote sensing of atmospheric dynamics

Physicists from the Moscow Institute of Physics and Technology have developed a new method for wind speed remote measurements. It may complement the widely employed lidar and radar sensing techniques. The paper is published in Atmospheric Measurement Techniques.

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Signatures of fractional electronic charge observed in topological insulators

The charge of a single electron, e, is defined as the basic unit of electric charge. Because electrons—the subatomic particles that carry electricity—are elementary particles and cannot be split, fractions of electronic charge are not normally encountered. Despite this, researchers at the University of Illinois at Urbana-Champaign have recently observed the signature of fractional charges ranging

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Tyskerne vil være brint-pionerer med ny strategi

PLUS. Brint skal ind de steder, hvor der ikke er alternativer til fossile brændsler, og nu er den tyske regering klar med en nye strategi for brint.

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Evolution: Why It Seems to Have a Direction and What to Expect Next

The diversity and complexity of life on Earth is astonishing: 8 million or more living species—from algae to elephants—all evolved from a simple, single-celled common ancestor around 3.5 billion years ago. But does that mean that evolution always and inevitably generates greater diversity and complexity, having a predictable direction? Charles Darwin identified three ingredients necessary for nat

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Lizard legacy sheds new light on web of life

A special issue of Austral Ecology this month is celebrating the legacy of an internationally renowned South Australian ecologist, whose work inspired a new generation of scientists and launched a momentum to ensure the survival of his beloved lizards, contribute enormously to their understanding, and enrich ecology knowledge at a broader level.

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Lizard legacy sheds new light on web of life

A special issue of Austral Ecology this month is celebrating the legacy of an internationally renowned South Australian ecologist, whose work inspired a new generation of scientists and launched a momentum to ensure the survival of his beloved lizards, contribute enormously to their understanding, and enrich ecology knowledge at a broader level.

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New remote voting risks and solutions identified

The upcoming presidential election in the middle of a pandemic has jurisdictions exploring new technologies. They're not secure.

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Researchers use CARC systems to understand volcano shapes

According to the United States Geological Survey, Earth is home to about 1,500 potentially active volcanoes, with new volcanoes forming about once a week. Volcanic eruptions can be highly unpredictable and pose a major threat to life and property.

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Lockdown: crimes in the home are on the up – new measures are needed to alert the authorities

Crimes in the home are hard to detect unless victims or family members report them. Both domestic violence and child maltreatment are widely under-reported. This means they tend not to be investigated by the authorities, and many victims don't get the support they need.

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Team solves old mystery, paving way toward advances in medicine, industry, environmental science

An Oregon State University environmental engineering professor has solved a decades-old mystery regarding the behavior of fluids, a field of study with widespread medical, industrial and environmental applications.

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The Last Root of Unity

It's time to say goodbye to the blog — Read more on ScientificAmerican.com

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Who owns the bones? Human fossils shouldn't just belong to whoever digs them up

All humans alive today can claim a common ancestral link to some hominin. Hominins include modern humans, extinct human species, and all our immediate ancestors.

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Lake Victoria could burst its banks more often in the future. What can be done

In recent weeks, water levels in Lake Victoria have reached unprecedented heights as a result of heavy rains in the East African region which started in August 2019. Some say the lake's levels have not been this high for 50 years. According to the Lake Victoria Basin Commission, the lake hit a new record level of 13.42 meters—marginally higher than the 13.41 meter mark recorded in 1964.

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Speed of space storms key to protecting astronauts and satellites from radiation

Space weather forecasters need to predict the speed of solar eruptions, as much as their size, to protect satellites and the health of astronauts, scientists have found.

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OUH-direktør formand for Behandlingsrådet

Lægelig direktør på Odense Universitetshospital Michael Dall bliver formand for det kommende Behandlingsråd. Samtidig bliver det Region Nordjylland, der skal huse rådets sekretariat.

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Study confirms the importance of informal learning in hospitals

The coronavirus crisis has shaken the structure of the Spanish healthcare system, leaving staff backed into a corner in their fight to beat the infection. However, doctors, nurses and other hospital and healthcare workers around the country have managed to acquire essential knowledge and adapt to these extraordinary circumstances in a matter of days. Plus, they've done it without attending courses

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Archaeologists may have discovered London's earliest playhouse

The elusive remains of what is thought to be the earliest Elizabethan playhouse, known as the Red Lion, were discovered by Archaeology South-East, part of UCL's Institute of Archaeology. The playhouse is thought to have been built around 1567.

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Titanic salvage: recovering the ship's radio could signal a disaster for underwater cultural heritage

The RMS Titanic's Marconi radio was last used to make distress calls from the north Atlantic after the ship struck an iceberg on April 14 1912. Now the radio could become the target of a salvage operation after a private company was granted permission to recover the artefact from the wreck's interior.

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Does alcohol have an undisclosed African heritage?

Alcohol is the most widely used psychoactive substance in the world. But where was the first alcoholic beverage brewed and consumed?

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Low-cost cameras could be sensors to remotely monitor crop stress

Being able to identify crop problems early can make the difference between saving a crop and losing it, but high-tech solutions can be costly. An interdisciplinary team of researchers thinks a new approach leveraging existing technology may be part of the solution.

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SLC35B1 as a key modulator of a UDPGA transporter into the endoplasmic reticulum

Researchers from Kanazawa University identified SLC35B1 as a key regulator of the glucuronidation process in the human liver. By using HepaRG cells, a human liver cell line, and human liver samples, they showed that among a panel of SLC35 proteins SLC35B1 most significantly contributed to glucuronidation. These findings indicated that the large interindividual differences in SLC35B1 expression may

2d

Signatures of fractional electronic charge observed in topological insulators

Because electrons — the subatomic particles that carry electricity — are elementary particles and cannot be split, fractions of electronic charge are not normally encountered. Despite this, researchers at the University of Illinois at Urbana-Champaign have recently observed the signature of fractional charges ranging from e/4 to 2e/3 in exotic materials known as topological crystalline insulator

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Putting COVID-19 diagnostic tests to the 'test' — how do they hold up?

As SARS-CoV-2 has the potential to mutate, it is important to check the efficacy of current diagnostic tests, say York University researchers, who found seven out of 27 methods had potential sequence mismatch issues that may lead to underperforming or false-negative COVID-19 test results.

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Lizard legacy sheds new light on web of life

Austral Ecology published 12 new studies this month that together represent a vast progression in knowledge on species like Australia's endangered pygmy bluetongue and iconic sleepy lizard, and share new insights on the roles of parasites, bacteria, environmental change, chemical communication and more – to lizards ecology and ecosystems broadly.

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Low-cost cameras could be sensors to remotely monitor crop stress

Being able to identify crop problems early can make the difference between saving a crop and losing it, but high-tech solutions can be costly. An interdisciplinary team of researchers thinks a new approach leveraging existing technology may be part of the solution.

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Americans' trust in institutions to handle COVID-19 is fading

According to the latest results from an ongoing survey of Americans' opinions about the COVID-19 pandemic, Americans' trust is fraying in their institutions' ability to respond—especially with regard to the police, in whom trust has fallen by 8 percent since April.

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Archaeologist sinks teeth into understanding cultural identity, interactions in ancient Nile River Valley

Like a fingerprint, teeth are unique to each individual. Dental records are useful in identifying human remains, but what can tooth enamel tell us about an individual—or an entire civilization—of 3,000 years ago in the Nile River Valley?

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Apps, drones and the far right in COVID-19

We must not become complacent as governments enforce more measures to control the coronavirus, UNSW's Dr. Carolien van Ham says.

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Iron Ponies Are Best for Swarming Military Tanks

Originally published in January 1942 — Read more on ScientificAmerican.com

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Bees? Please. These plants are putting ants to work

This is the first plant species in the world found to have adapted traits that enables a mutually beneficial relationship with ants.

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A 'hole' lot of sponge! New technique to create super-sponges is a game changer

Metal-organic frameworks (MOFs) are sponge-like organic-inorganic hybrid materials and have a variety of uses due to their ultra-high 'porosity,' or the ratio of pores or air pockets to the solid material. Through a technique called 'post-synthetic modification,' Professor Jinhee Park and her research team were able to enhance and modify the function of these materials for specific purposes.

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NIH-funded study to evaluate drugs prescribed to children with COVID-19

Researchers funded by the National Institutes of Health have launched an effort to evaluate drugs prescribed to treat COVID-19 in infants, children and adolescents across the country.

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18.2 million at increased risk of severe COVID-19 uninsured or underinsured: Harvard study

Harvard researchers found that 18.2 million Americans who are at increased risk of severe COVID-19 due to age and underlying health conditions were also either uninsured or underinsured. Blacks, Native Americans, lower-income, and rural Americans, or those living in states that had not expanded Medicaid were doubly disadvantaged: they were both more likely to be at high risk of severe COVID-19 and

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Speed of space storms key to protecting astronauts and satellites from radiation

Measuring the speed of coronal mass ejections (CMEs) as they erupt from the sun, in addition to their size, found to be crucial in providing accurate early warnings that keep astronauts and technology safe.

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Predicting and mitigating the knowledge gaps caused by COVID-19

By Labor Day, most K-12 students will have been away from their physical classrooms for more than 25 weeks due to COVID-19-related closures, and it's still unknown when schools will reopen their doors. The true extent of the impact this will have on students won't be known for some time, but education experts are warning that school closures will worsen the vast disparities that already exist in m

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Political 'oil spill': Polarization is growing stronger—and getting stickier

Experts have documented that political polarization is intensifying in the United States. However, a Penn State sociologist now suggests that this separation isn't just more intense, but it is also growing broader, coagulating into an ideological slick of opinions.

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What a bike moving at near the speed of light might look like to a human observer

A pair of researchers at Surrey University has attempted to show what a bicycle moving at near the speed of light might look like to a human observer. In their paper published in the journal Proceedings of the Royal Society A, E. C. Cryer-Jenkins, and P. D. Stevenson expand on prior research that attempted to describe how a near-light-speed object would appear to a camera, this time focusing on it

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Survey reveals drop in favorability ratings for U.S. police across all racial groups

Americans' attitudes about police changed rapidly following the death of George Floyd and the nationwide protests that ensued.

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Researchers uncover a new mindset that predicts success

To succeed in modern life, people need to accomplish challenging tasks effectively. Many successful entrepreneurs, businesspeople, students, athletes and others tend to be more strategic—and hence, more effective—than others at meeting such challenges. A new study published this week in the Proceedings of the National Academy of Sciences shows that one important psychological factor behind their s

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Women generate lower travel-related greenhouse gas emissions, study finds

Women use more diverse modes of travel and generate lower greenhouse gas emissions than men, despite men being more than twice as likely to travel by bike, a New Zealand study has found.

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What the World Could Teach America About Policing

In the weeks since George Floyd was killed by a Minneapolis police officer, nationwide anti-racism protests have called for, among other things, defunding the police . But the members of the Minneapolis City Council decided to go further, announcing their intent to dismantle their police department altogether. Such a promise might have been deemed radical only a few weeks ago. But as the demonstr

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Gymnasister mår sämre av distansundervisningen

Hemmatillvaron och distansundervisningen har inte gjort gott för den psykiska hälsan hos landets gymnasieungdomar, enligt en ny studie från Lunds universitet. Fler än hälften uppger att de är mer oroliga och stressade än vanligt. I undersökningen, som gjordes i form av en digital enkät i maj 2020, deltog 860 elever på studieförberedande program från skolor i Lund, Malmö och Stockholm. Resultaten

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Fire expert: It's been a year since the last bushfire season began, but don't expect the same this year

Last season's bushfires directly killed 34 people and devastated more than 8 million hectares of land along the south-eastern fringe of Australia.

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The Black Lives Matter protests motivated people to vote in 2016. Will the protests this year do the same?

The Black Lives Matter movement and protests of police violence played a major role in the 2016 election, according to new research led by faculty from Northeastern University, the University of Massachusetts, Northwestern University, and George Mason University.

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War on drugs causes aggressive policing, says expert

The war on drugs has provided police with cover for aggressive tactics and unnecessary encounters with citizens, according to Katharine Neill Harris, the Alfred C. Glassell, III, Fellow in Drug Policy at Rice University's Baker Institute for Public Policy.

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How reforms could target police racism and brutality—and build trust

In the turbulent days since the police killing of George Floyd in Minnesota, Jack Glaser has been following the storm of protests, including dozens of incidents in which police appeared to escalate conflicts, use excessive force and target journalists. Like millions of others in the United States and worldwide, he is alarmed by what he's seen.

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Image: The foam-coarsening experiment on the ISS

The foam-coarsening experiment ran a new batch of cartridges in the Fluid Sciences Laboratory of the European Columbus module.

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Ancient enzymes can contribute to greener chemistry

A research team at Uppsala University has resurrected several-billion-year-old enzymes and reprogrammed them to catalyze completely different chemical reactions than their modern versions can manage. The method can be used to develop sustainable solutions within biotechnology, such as for enzyme bioreactors or to chemically degrade environmental toxins. The study has been published in Chemical Sci

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This video production kit is perfect for filming your own cooking show

Bring your cooking to the small screen. (Sander Dalhuisen via Unsplash/) You've spent your time during lockdown improving your cooking game, and now, having mastered your stove, oven, and mixer, it's time to put together a video kit that can help you showcase your skill with a grill, your chopping chops, and your plating proficiency. This mid-tier kit can compete with much of what you'll find on

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Culprit for Mass Extinction 445 Million Years Ago? Global Warming

A planet heated by giant volcanic eruptions drove the earliest known wipeout of life on Earth.

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Ancient enzymes can contribute to greener chemistry

A research team at Uppsala University has resurrected several-billion-year-old enzymes and reprogrammed them to catalyze completely different chemical reactions than their modern versions can manage. The method can be used to develop sustainable solutions within biotechnology, such as for enzyme bioreactors or to chemically degrade environmental toxins. The study has been published in Chemical Sci

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Young workers can thrive after coronavirus layoffs by leaving big cities

Workers under age 30 have been the first to lose their jobs or be placed on unpaid leave during the COVID-19 pandemic.

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Astronomers capture rare cosmic 'Jekyll and Hyde' behaviour in double star system 19,000 light-years away

The strange behavior of a duo of stars in a dense cluster called Terzan 5 located 19,000 light-years from Earth has caught the eye of an international team of astronomers.

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New technique to create super-sponges is a game changer

Metal-organic frameworks (MOFs) are unique micromaterial compounds consisting of a sponge-like network of metal ions or clusters linked together by organic linkers, and are able to store specific gas molecules in their pores. MOFs have such a high surface area due to their porosity that a single gram of the material has enough surface area to cover the size of a football field!

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Economics professor: Coronavirus destroys jobs and worsens inequality, with or without full lockdown

Coronavirus plunged the world into the worst economic crisis since the Great Depression. Many governments are trying to revitalize their economies by gradually lifting lockdown measures, including the UK.

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Method to study the "traces" of coronal mass ejections

Scientists at Skolkovo Institute of Science and Technology (skoltech), together with colleagues from the Karl-Franzens University of Graz and the Kanzelhoehe Observatory (Austria), have developed an automatic method for detecting coronal dimmings, or traces of coronal mass ejections from the sun; they have also proved that these are reliable indicators of the early diagnosis of powerful emissions

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Astronomers observe X-ray reactivation of the magnetar SGR 1935+2154

Using NASA's Swift and NuSTAR spacecraft, together with NICER instrument onboard the International Space Station, astronomers from Spain and Italy have performed an X-ray monitoring of a magnetar known as SGR 1935+2154. The new observations found that the source has once again became active, this time in the X-ray band. Results of the study were presented May 30 in a prepublished paper on arXiv.or

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Vins "nyttighet"

I min e-post damp det ned ett missvisande meddelande från "Dagens PS" med rubriken "Ny forskning: nyttigt med vin". Man hänvisar till en artikel av Ghosh och medarbetare. Jag är inte kompetent att uttala mig om vins eventuella nyttighet, bortsett från att jag vet att det är skadligt i stora mängder. Men det är helt klart, att den artikel det hänvisas till inte ger stöd för påståendet i rubriken.

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Lung size 'mismatch' may explain COPD in non-smokers

A developmental mismatch between airway and lungs size called dysanapsis may explain why some non-smokers get COPD while many heavy smokers don't. Smoking is the best-known risk factor for COPD (chronic obstructive pulmonary disease), a debilitating lung condition that can severely limit a person's day-to-day activities. But curiously, only a minority of lifelong smokers develops the disease, whi

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Fluid mechanics mystery solved

An environmental engineering professor has solved a decades-old mystery regarding the behavior of fluids, a field of study with widespread medical, industrial and environmental applications.

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How the brain controls our speech

Speaking requires both sides of the brain. Each hemisphere takes over a part of the complex task of forming sounds, modulating the voice and monitoring what has been said. However, the distribution of tasks is different than has been thought up to now, as an interdisciplinary team of neuroscientists and phoneticians at Goethe University Frankfurt and the Leibniz-Centre General Linguistics Berlin h

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Coronavirus came to UK 'on at least 1,300 separate occasions'

There was no one 'patient zero' that started the UK epidemic, research shows.

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Sonos Arc Soundbar Review: A Dolby Atmos Dream

The latest home theater speaker from Sonos sounds better than almost any soundbar you can buy. Plus, it has major smarts.

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The Pandemic and the Protests Are Mirror Images

The debate over Covid-19 and the uprisings against police brutality share perilous pasts and uncertain futures. Together, they can teach us where to go next.

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Preparations complete in western Australia for construction of world's largest telescope

Following seven years of design and prototyping work, the Curtin University node of the International Centre for Radio Astronomy Research (ICRAR) has completed its preparations for the construction of the Square Kilometre Array (SKA) in Western Australia, which will begin next year.

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Feeding habits differ by age and sex in Asian black bears

A 10-year study shows that the diets of Asian black bears vary greatly depending on sex, stage of life, and resource availability, providing important information on foraging strategy according to age-sex classes. Researchers in Japan have published their findings in Mammal Study.

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Policing Can Take a Lesson from Health Care

Here are 10 ways to reduce adverse outcomes — Read more on ScientificAmerican.com

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'Artificial Chemist' learns to make best quantum dots in minutes

In proof-of-concept experiments, research shows that technology called "Artificial Chemist" can identify and produce the best possible quantum dots for any color in 15 minutes or less. Artificial Chemist incorporates artificial intelligence and an automated system for performing chemical reactions to accelerate research and development and manufacturing of commercially desirable materials. Quantu

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Feeding habits differ by age and sex in Asian black bears

A 10-year study shows that the diets of Asian black bears vary greatly depending on sex, stage of life, and resource availability, providing important information on foraging strategy according to age-sex classes. Researchers in Japan have published their findings in Mammal Study.

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Depression hos äldre kan kopplas till genusuttryck

Depression drabbar nästan dubbelt så många äldre kvinnor som äldre män. Skillnaden mellan män och kvinnor verkar vara kopplad till både biologiskt kön och genusuttryck. Högre grad av femininitet, oavsett kön, ger högre förekomst av depression. I takt med att den förväntade livslängden ökar är depression hos den äldre befolkningen ett växande folkhälsoproblem. En avhandling från Göteborgs universi

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Why Minneapolis Was the Breaking Point

Photographs by Joshua Rashaad McFadden MINNEAPOLIS—Miski Noor watched just the first minute of the video of George Floyd's killing before closing the tab and walking the two blocks to join the protests already forming at the scene. The days since have been filled with a maddening sense of déjà vu. Noor had joined the Movement for Black Lives in 2014, after the fatal police shooting of Michael Bro

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'Sick until proven healthy': how COVID-19 pandemic changes global security

COVID-19 has changed the international security paradigm.

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Gene makes plants produce less pollen

New research identifies a gene that reduces the amount of pollen that a plant produces. In the 19th century, Charles Darwin recognized that the number of male gametes— pollen for plants, sperm for animals—is highly variable among individuals and species. At first sight a high number of male gametes seems beneficial for the competition among males to produce more offspring. However, many domestica

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NUS and Stanford researchers uncover a new mindset that predicts success

To succeed in modern life, people need to accomplish challenging tasks effectively. Many successful entrepreneurs, businesspeople, students, athletes and more, tend to be more strategic — and hence, more effective — than others at meeting such challenges. A new study published this week in the Proceedings of the National Academy of Sciences shows that one important psychological factor behind th

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Simulator overgår virkeligheden til træning af selvkørende biler

PLUS. Selvkørende biler skal kunne håndtere hændelser, som kun optræder meget sjældent i virkeligheden. Derfor er det nødvendigt at simulere, siger Nvidias topchef for udvikling af selvkørende biler.

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Nearby humans disturb giraffe social networks

Living close people disturbs giraffe social networks, research finds. Giraffes near humans having weaker bonds and fewer interactions with others, according to the new study. The research team monitored more than 500 giraffes over six years and used social network analysis. A paper describing their results appears in the Journal of Animal Ecology . "In Tanzania, giraffes are generally tolerated b

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COVID-19 – The Second Wave

A second wave seems likely, but the evidence suggests our measures are working, and may even prevent a second wave.

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Titan Is Moving Away From Saturn 100 Times Faster Than Expected

Cassini's mission to Saturn may have ended years ago, but scientists analyzing the data sent back by the probe continue to draw new insights about the sixth planet from the sun and its system of moons. We now know that Titan, Saturn's largest moon (and one of its most interesting) is moving away from the planet 100x faster than predicted. Some of you may be aware that the Moon is slipping the bon

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Paging Dr. Hamblin: When Will It Be Safe to Sing Together?

Editor's Note : Every Wednesday, James Hamblin takes questions from readers about health-related curiosities, concerns, and obsessions. Have one? Email him at paging.dr.hamblin@theatlantic.com . As we gradually reopen businesses, education, churches, etc., some questions arise. Is it safe for my friends who are music educators to teach choir in public schools, even with social-distancing practice

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COVID-19 false negative results if used too early

In a new study, Johns Hopkins researchers found that testing people for SARS-CoV-2 — the virus that causes COVID-19 — too early in the course of infection is likely to result in a false negative test, even though they may eventually test positive for the virus.

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How South America became the new centre of the coronavirus pandemic

Coronavirus cases are rising sharply in South America, made worse by inequality, economic instability and the actions of Brazil's president Jair Bolsonaro

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Sex during a pandemic can be risky. Here's how to do it safely.

Having sex with people outside your social distancing circle can be made safer by showering before and after, avoiding contact with other bodily fluids (including kissing), and wearing a mask during sex. (Pexels/) Social distancing in order to slow the spread of COVID-19 has radically changed the way we live. But that doesn't stop people from needing each other, in every sense of the word. This h

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Podhero Wants to Be Patreon for Podcasts

The streaming app aims to take on Spotify—and the entire podcast advertising business—by charging listeners a subscription fee.

2d

The Dangers of Excluding Women From HIV Prevention Drug Tests

PrEP, or pre-exposure prophylaxis, pills are highly effective in blocking HIV if taken daily. But their drug trials have a mixed track record for access.

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Rebecca Frayn: 'One silver lining in the pandemic is that we can rebuild green'

The Misbehaviour screenwriter on Jane Goodall, the TV adaptation of Normal People and why fungi is the key to our very evolution We're in lockdown with my 20-year-old daughter and one of our 27-year-old twin sons. On good days, life in lockdown is idyllic. All of the sunshine and blossom makes it feel as if the planet is celebrating us humans retreating behind closed doors. On bad days, it can fe

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Scientists around the world are striking against racism in academia

Academics are gathering under the #ShutDownSTEM and #Strike4BlackLives hashtags to participate in a strike advocating for action against racism in science

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It-jätte stoppar ansiktsigenkänning

Beslutet om att stoppa försäljning och utveckling av system för ansiktsigenkänning kommer efter de omfattande protesterna i USA mot mordet på George Floyd. I ett brev till kongressen skriver IBM:s vd att företaget är emot användning av teknik som kan användas för: "massövervakning, ras-profilering, brott mot grundläggande mänskliga rättigheter och friheter som inte är förenliga med våra värderinga

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Pathologists warn UK coronavirus testing needs 'urgent' improvement

Royal College report lists an array of problems including slow turnround of test results

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Deep sea reefs may provide refuge for Aussie marine life in a warming world

A new study by researchers at The University of Western Australia has found deep reefs in Western Australia can be used as a refuge by marine forests from the impacts of ocean warming.

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Deep sea reefs may provide refuge for Aussie marine life in a warming world

A new study by researchers at The University of Western Australia has found deep reefs in Western Australia can be used as a refuge by marine forests from the impacts of ocean warming.

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Flexible work beyond the pandemic

Flexible work has always been a drawcard for employees, but while managers have typically been reluctant to embrace flexible work arrangements, University of South Australia researchers warn that the topic is likely to become front and centre as employees return to the office after months of lockdown from COVID-19.

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A cheap, flexible and recyclable alternative to indium tin oxide in electrodes

Australian researchers have demonstrated the strong potential for a new type of flexible, recyclable electrodes to be used in creating cheaper solar cells, touchscreens, wearable 'e-skins' and next-generation responsive windows.

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Researchers must 'bee' sweep netting to learn more about native bees

Novel research into native bee populations by Curtin University provides a best practice recommendation on how to accurately monitor these important insects, with the aim of monitoring and saving bee species from emerging environmental threats.

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Buoy oh buoy! Floating instruments receive major upgrade

A PNNL research team has upgraded the instrumentation on two lidar buoys used to capture data that help advance the scientific understanding of offshore wind and its energy-producing potential. The buoys were equipped with more powerful lidars that reach up to 200 meters, providing a higher data recovery rate. Previously, the lidar beams did not consistently return data at heights above 90 meters,

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Researchers must 'bee' sweep netting to learn more about native bees

Novel research into native bee populations by Curtin University provides a best practice recommendation on how to accurately monitor these important insects, with the aim of monitoring and saving bee species from emerging environmental threats.

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Discovery of a malaria parasite's internal clock could lead to new treatment strategies

The parasites responsible for malaria seem to march to their own beat.

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Discovery of a malaria parasite's internal clock could lead to new treatment strategies

The parasites responsible for malaria seem to march to their own beat.

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Nature joins global academic strike against anti-black racism

The science publisher Nature took the unprecedented step Wednesday of delaying the release of all the research in its flagship journal as part of a global strike to protest institutional anti-black racism in academia.

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Wide-spectrum NLO materials obtained by polycation-substitution-induced NLO-functional motif ordering

Nonlinear optical (NLO) crystals possess a frequency conversion capability that is significant for national defense and civil applications. Noncentrosymmetry (NCS) is a prerequisite for second-order NLO materials, but designing NCS structures is a challenging task.

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Red Lion: Archaeologists 'find London's earliest theatre'

The Red Lion is thought to be the first purpose-built theatre created in the Elizabethan era.

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Good News and Bad News about COVID-19 Misinformation

The good news is that people don't necessarily believe it. The bad news is that they don't necessarily believe valid information about the pandemic either — Read more on ScientificAmerican.com

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The Familial Language of Black Grief

I cracked a joke to break the tension. "Everyone put on your seat belts, because the cops are definitely pulling us over tonight." Psychologists say that laughter relieves stress and reduces anxiety—I guess that's what I was going for in that moment. We were five black men sitting in a very nice car, a black Range Rover, about to go out for a night on the town. As I recall, we really tore it up a

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Så mycket kompetens behövs när Sverige bygger ut järnvägen

Eftersom allt fler efterfrågar hållbara och punktliga resor byggs nu Sveriges järnvägstrafik ut. Samtidigt ökar behovet av underhåll av järnvägarna. En ny modell som forskare från VTI tagit fram beräknar framtida behov knutna till svensk infrastruktur för tågtrafik. Trafikverket räknar med att arbetet med järnvägar kommer öka med 54 procent fram till 2040, jämfört med 2014. I Trafikverkets nation

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Windows 10-opdatering får printerporte til at forsvinde

USB-printere kan forsvinde fra oversigten over printerporte, hvis printeren bliver frakoblet, når computeren er slukket.

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Regionsrådsformand afviser BRT: Det er smart, men tager for lang tid at anlægge

PLUS. Ifølge ny rapport fra Transportministeriet er der mange fordele ved at omlægge den nedslidte Østbane til BRT. Men det vil tage seks år, og der er usikkerheder ved økonomien.

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Good News and Bad News about COVID-19 Misinformation

The good news is that people don't necessarily believe it. The bad news is that they don't necessarily believe valid information about the pandemic either — Read more on ScientificAmerican.com

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Across the Globe, Scientists Are Striking for Black Lives

On June 10, thousands of academics are stopping research activities to educate themselves about disparities and take action against systemic racism in science.

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IBM's Withdrawal Won't Mean the End of Facial Recognition

Many other companies continue to offer similar services, which studies show are less accurate for women and people of color.

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Nintendo Game Boy Hackers Are Building a Better Retro Console

Fueled by nostalgia and longing for a simpler time, hardware tinkerers are injecting new life into the iconic handheld game console.

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Giv dit bud: Hvorfor revner facaden på Bohrs Tårn?

Carlsbergbyens kæmpe, Bohrs Tårn, står med afspærringer, selv om det er færdigt. Facadepladerne risikerer at falde ned fra det 100 meter høje tårn. Har læserne et bud på, hvad der kan være sket?

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Good News and Bad News about COVID-19 Misinformation

The good news is that people don't necessarily believe it. The bad news is that they don't necessarily believe valid information about the pandemic either — Read more on ScientificAmerican.com

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En virus har sandsynligvis givet mennesket evnen til at lagre hukommelse

For millioner af år siden blev den organisme, der senere udviklede sig til mennesket, inficeret…

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Einstein was right about how extremely massive objects fall in space

A crucial pillar of Einstein's theory of general relativity has been tested with the motion of stars at the highest precision yet, and the theory has held up once again

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Famed U-2 Spy Plane Takes on a New Surveillance Mission

Designed with slide rules in the 1950s, the stealthy high flier still has a lot to offer — Read more on ScientificAmerican.com

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Rna i våra cellfabriker påskyndar inte alls åldrandet

Byggstenar för ribonukleinsyra, rna, råkar ibland hamna i det dna som finns i våra cellers energifabriker (mitokondrier). Detta har misstänkts kunna göra dna:t instabilt, och bidra till åldrandet. En studie vid Umeå universitet visar nu att rna-bitarna inte utgör någon risk för dna:t. Det är sedan tidigare känt att rna-byggstenar kan hamna i vårt dna när arvsmassan kopieras. Detta beror på att de

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Famed U-2 Spy Plane Takes on a New Surveillance Mission

Designed with slide rules in the 1950s, the stealthy high flier still has a lot to offer — Read more on ScientificAmerican.com

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Blöt vår ger nyttigare äpplen

Perfekt väder för ett äpple är mycket regn och hög luftfuktighet under blomningen i april, och under fruktsättningen i tidiga juni. Då bildar äpplena mer proteiner och antioxidanter vilket gör dem mer motståndskraftiga mot sjukdomar efter skörd. Och nyttigare för oss att äta. För att vi ska ha svenska äpplen till jul krävs förutom goda lagringsmöjligheter, att äpplena är av god kvalitet och kan s

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Cities May Have No Choice But to Defund the Police

On a modest scale, police defunding is happening. For years, powerful police unions have made law-enforcement funding all but untouchable. As The New York Times noted in 2018, the number of police per capita has risen over the past three decades even as crime rates have plunged. Last week, however, Los Angeles Mayor Eric Garcetti announced that he would shave at least $100 million from his city's

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'The Last of Us Part II' and Its Crisis-Strewn Path to Release

Videogame developer Naughty Dog was racing to finish the sequel to its blockbuster set in a post-pandemic dystopia. Then it was hit with trolls, hackers—and a real pandemic.

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Coronavirus Live Updates: As U.S. Reopens, 21 States See Cases Rise

At least 15 cases have been linked to protests, including five National Guard members and one police officer in Nebraska. The Republican National Convention will likely move to Jacksonville, Fla., after President Trump chafed at North Carolina's restrictions.

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How to turn filming the police into the end of police brutality

Of all the videos that were released after George Floyd's murder, the one recorded by 17-year-old Darnella Frazier on her phone is the most jarring. It shows Officer Derek Chauvin kneeling on Floyd's neck as Floyd pleads, "Please, please, please, I can't breathe," and it shows Chauvin refusing to budge. A criminal complaint later states that Chauvin pinned Floyd's neck for 8 minutes and 46 second

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As Uganda Takes Control of the HIV Epidemic, U.S. Shifts Funding

The U.S. President's Emergency Plan for AIDS Relief has been credited with saving more than 18 million lives and changing the course of the HIV/AIDS epidemic in Africa. But 15 years on, it was announced the funding model would be changing. The impact that will have on local organizations is unknown.

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Corona med knuff – så fungerar nudging under pandemin

Tänk dig att du just ska tvätta händerna. Du känner dig stressad. Alla förutsättningar för att göra en riktigt slarvig handtvättning är på plats. Men när du lyfter blicken ser du en lapp på spegeln: "Tvätta händerna i minst 30 sekunder för att undvika spridning av covid-19. Ett bra knep är att sjunga Blinka lilla stjärna".

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Ancient enzymes can contribute to greener chemistry

A research team at Uppsala University has resurrected several billion-year-old enzymes and reprogrammed them to catalyse completely different chemical reactions than their modern versions can manage. The method can be used to develop sustainable solutions within biotechnology, such as for enzyme bioreactors or to chemically degrade environmental toxins. The study has been published in Chemical Sci

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NIH study links cigarette smoking to higher stroke risk in African Americans

African Americans who smoke are nearly 2.5 times more likely to have a stroke than those who never smoked, while former smokers show a similarly lower risk as never smokers, according to a new study funded by the National Institutes of Health.

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Study discovers BAM15 as a potential treatment for obesity

A new study offers the first evidence that a protein named BAM15 acts as an energy uncoupler and could be an effective drug for treating obesity and related diseases.

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A rare heart bone is discovered in chimpanzees

Experts from the University of Nottingham have discovered that some chimpanzees have a bone in their heart, which could be vital in managing their health and conservation.

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Synthesized cell culture process sets stage for more efficient cancer research

Researchers in Japan have replicated cancer cells from diseased bladder tissue in dogs, minimizing the use of costly stem cell products. The synthesized tumor cells allow scientists to diagnose cancer and optimize treatment without putting the patient through tiresome rigors of chemotherapy trial and error.

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Risk of stroke may more than double for African Americans who smoke

Current cigarette smoking and the number of cigarettes smoked per day are associated with more than double the risk of stroke among African Americans.Researchers suggest more public information campaigns should be geared toward warning African Americans about the increased risk of stroke from cigarette smoking.

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Annexin A5 prevents amyloid-β-induced toxicity in choroid plexus: implication for Alzheimer's disease

Scientific Reports, Published online: 10 June 2020; doi:10.1038/s41598-020-66177-5

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Establishment of 2.5D organoid culture model using 3D bladder cancer organoid culture

Scientific Reports, Published online: 10 June 2020; doi:10.1038/s41598-020-66229-w

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Nitric oxide synthase mediates cerebellar dysfunction in mice exposed to repetitive blast-induced mild traumatic brain injury

Scientific Reports, Published online: 10 June 2020; doi:10.1038/s41598-020-66113-7

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Contextual centrality: going beyond network structure

Scientific Reports, Published online: 10 June 2020; doi:10.1038/s41598-020-62857-4

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Transcriptional control of the gonococcal ompA gene by the MisR/MisS two-component regulatory system

Scientific Reports, Published online: 10 June 2020; doi:10.1038/s41598-020-66382-2

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Fungal-like particles and macrophage-conditioned medium are inflammatory elicitors for 3T3-L1 adipocytes

Scientific Reports, Published online: 10 June 2020; doi:10.1038/s41598-020-66283-4

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Narrow-band hard-x-ray lasing with highly charged ions

Scientific Reports, Published online: 10 June 2020; doi:10.1038/s41598-020-65477-0

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Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene

Nature Communications, Published online: 10 June 2020; doi:10.1038/s41467-020-16844-y Optical transitions between Landau levels (LL) in solids are described by selection rules associated with the LL index. Here, the authors perform photocurrent spectroscopy measurements on high-quality bilayer graphene to investigate the interband LL transitions, and observe valley-dependent optical transitions o

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Spontaneously separated intermetallic Co3Mo from nanoporous copper as versatile electrocatalysts for highly efficient water splitting

Nature Communications, Published online: 10 June 2020; doi:10.1038/s41467-020-16769-6 Electrochemical water splitting is an attractive energy conversion technology, but it usually suffers from low efficiency. Here, the authors report intermetallic Co3Mo integrated on porous Cu as highly efficient electrocatalysts for alkaline HER/OER due to in-situ hydroxylation and electro-oxidation.

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Distinct metabolic states of a cell guide alternate fates of mutational buffering through altered proteostasis

Nature Communications, Published online: 10 June 2020; doi:10.1038/s41467-020-16804-6 Changes in osmotic homeostasis alter metabolites and therefore chemical milieu of the cells. Here, the authors show that altering metabolites in E. coli also change the cellular capacity for buffering mutations that impair protein folding and influences proteostasis irrespective of molecular chaperones

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Author Correction: NADH oxidase-dependent CD39 expression by CD8+ T cells modulates interferon gamma responses via generation of adenosine

Nature Communications, Published online: 10 June 2020; doi:10.1038/s41467-020-16314-5 Author Correction: NADH oxidase-dependent CD39 expression by CD8 + T cells modulates interferon gamma responses via generation of adenosine

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Ultrafast photochemistry produces superbright short-wave infrared dots for low-dose in vivo imaging

Nature Communications, Published online: 10 June 2020; doi:10.1038/s41467-020-16333-2 Deep tissue imaging has been limited by the low brightness of probes emitting in the second near-infrared window. Here, the authors use femtosecond laser irradiation to grow a protective shell on Ag2S nanoparticles, achieving 80-fold quantum yield enhancement and imaging with low excitation intensities.

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The halogen bond with isocyano carbon reduces isocyanide odor

Nature Communications, Published online: 10 June 2020; doi:10.1038/s41467-020-16748-x Carbon atoms of various species typically function as acceptors of noncovalent interactions when they are part of a π-system. Here, the authors report their discovery of a noncovalent halogen bond involving the isocyano carbon lone pair, which results in adducts with strongly reduced isocyanide odor.

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Development of CRISPR-Cas13a-based antimicrobials capable of sequence-specific killing of target bacteria

Nature Communications, Published online: 10 June 2020; doi:10.1038/s41467-020-16731-6 CRISPR technology is emerging as a potential antimicrobial against antimicrobial-resistant bacteria. Here the authors develop a bacteriophage delivered Cas13a system for killing target bacteria and detecting bacterial genes.

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Molecular structure analyses suggest strategies to therapeutically target SARS-CoV-2

Nature Communications, Published online: 10 June 2020; doi:10.1038/s41467-020-16779-4 Amid the COVID-19 pandemic, scientists around the globe have been working resolutely to find therapies to treat patients and avert the spreading of the SARS-CoV-2 virus. In this commentary, we highlight some of the latest studies that provide atomic-resolution structural details imperative for the development of

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Forskere dyrker menneskehud med hår: Vokser videre på mus

Huden er skabt af stamceller og minder om ansigtshuden på et foster.

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The Looming Bank Collapse

A fter months of living with the coronavirus pandemic, American citizens are well aware of the toll it has taken on the economy: broken supply chains, record unemployment, failing small businesses. All of these factors are serious and could mire the United States in a deep, prolonged recession. But there's another threat to the economy, too. It lurks on the balance sheets of the big banks, and it

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How does gravity bend spacetime?

We typically think of events as happening in space and in time. "In reality, space and time are strongly intertwined things and the union of them is called spacetime," explains Konstantin Batygin. The force that we understand as gravity, according to Batygin, is the result of the spacetime continuum being curved by Earth's gravitational field. Depending on how close you are to the source of gravi

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Et juleunivers i naturvidenskabens navn

En julekalender for hele familien, hvor døren åbnes til naturvidenskabens spændende verden,…

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Vaccine Makers Hedge Bets On Which One Will Emerge As Effective And Safe

To speed vaccine production from years to months, companies must start making a vaccine in large quantities even before it's clear a vaccine works. (Image credit: Philip Taciak/Emergent Biosolutions)

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From Rent Freezes To Liquor Buybacks: How States Are Helping People Cope

With limited resources themselves, states are having to get creative helping residents deal with the COVID-19 economic slowdown. But how much help you can get depends on where you live. (Image credit: John Minchillo/AP)

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A rare heart bone is discovered in chimpanzees

Experts from the University of Nottingham have discovered that some chimpanzees have a bone in their heart, which could be vital in managing their health and conservation.

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How the space industry has adjusted to life under coronavirus

Like other industries, space hasn't been immune to the effects of covid-19 pandemic. Operations across the world have been slowed or shut down thanks to lockdowns imposed by governments to stop the spread of the virus. The recent Crew Dragon launch of astronauts to the International Space Station by SpaceX and NASA was more of an exception than the rule. But that doesn't mean space is over. NASA,

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Aussie scientists turn to drones to protect sea turtles

Australian researchers have discovered they were underestimating numbers at the world's largest sea turtle nesting site after turning to drone technology for the first time.

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Galapagos welcomes six new 'Darwin's flycatcher' chicks

Six little vermilion flycatcher chicks have hatched in the Galapagos Islands, officials said Tuesday, in a boost to the dwindling numbers of the brilliantly coloured songbird.

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A rare heart bone is discovered in chimpanzees

Experts from the University of Nottingham have discovered that some chimpanzees have a bone in their heart, which could be vital in managing their health and conservation.

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Aussie scientists turn to drones to protect sea turtles

Australian researchers have discovered they were underestimating numbers at the world's largest sea turtle nesting site after turning to drone technology for the first time.

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Galapagos welcomes six new 'Darwin's flycatcher' chicks

Six little vermilion flycatcher chicks have hatched in the Galapagos Islands, officials said Tuesday, in a boost to the dwindling numbers of the brilliantly coloured songbird.

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300.000 Nintendo-brugere har fået stjålet personlige oplysninger

Hvis du har spillet Zelda eller Mario på din Wii U eller 3DS, skal du måske tjekke din Nintendo-konto. 300.000 Nintendo-brugere har nemlig fået kompromitteret deres konti.

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Nyt digitalt opslagsværk til kamp mod fake news og misinformation

PLUS. 11 digitale, danske opslagsværker er fusioneret på Lex.dk, hvor alle artikler er skrevet af fagfolk. En »blåstemplet enklave«, hvor man trygt kan hente viden og information uden at bekymre sig om afsenderen og dennes hensigter, lyder det fra Lex.dk.

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Sundhedsministeriet afviser at have handlet ulovligt efter politianmeldelser: En særlig løsning i en ekstraordinær situation

PLO og ministeriet har haft et 'konstruktivt' møde, efter blandt andre praktiserende læge Anette Skadborg har politianmeldt Sundhedsministeriet for at bestille coronaprøver med deres autorisation. Ministeriet afviser at have overtrådt loven, mens professor i sundhedsret er uenig.

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Ny sikkerhedsanalyse: It-kriminelle åbner online supermarkeder for ulovlige tjenester

Det er svært for myndighederne at få bugt med de it-kriminelle. Samtidig udvikler markedet sig, og nye produkter, som deepfake-teknologi og manipulation af sociale medier vinder frem.

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Note from the editors: Nature joins #ShutDownSTEM

Nature, Published online: 10 June 2020; doi:10.1038/d41586-020-01723-9 We will delay publication of the journal, and spend the day planning how to help eradicate anti-Black racism in academia and STEM.

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Daily briefing: IBM has backed out of the facial-recognition business

Nature, Published online: 09 June 2020; doi:10.1038/d41586-020-01725-7 IBM will no longer sell "general purpose" facial-recognition technology, Black scientists call out racism in the wake of police killings and the latest must-read papers and preprints on COVID-19.

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Aerosol-printed graphene unveiled as low cost, faster food toxin sensor

Researchers in the USA have developed a graphene-based electrochemical sensor capable of detecting histamines (allergens) and toxins in food much faster than standard laboratory tests.The team used aerosol-jet printing to create the sensor. The ability to change the pattern geometry on demand through software control allowed rapid prototyping and efficient optimization of the sensor layout.

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Archaeologists discover 'amazing' details of Roman city

Ground-penetrating radar used to map undiscovered buildings at Falerii Novi Archaeologists have mapped a complete Roman city for the first time using ground-penetrating radar, revealing highly detailed images that they say could revolutionise our understanding of how such sites worked. As well as a bath house, theatre, shops and several temples, the team from the universities of Cambridge and Ghe

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Champagne på Panum Instituttet: Danske forskeres coronavaccine virker på mus

Det er det største resultatmål, inden vaccinen skal prøves af på mennesker, siger manden bag.

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Aerosol-printed graphene unveiled as low cost, faster food toxin sensor

Researchers in the USA have developed a graphene-based electrochemical sensor capable of detecting histamines (allergens) and toxins in food much faster than standard laboratory tests.

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Here's a new way to do study abroad during the COVID-19 pandemic and beyond

With the U.S. and much of the world engulfed in the COVID-19 pandemic, travel restrictions and health risks have threatened to make study abroad difficult, if not impossible. But that doesn't mean students won't still want to learn about other cultures and see how people in other parts of the world approach different issues, such as climate change, income inequality or human rights. Ideally, stud

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Rådgiver om power-to-x: Samspil mellem vind og elektrolyseanlæg bliver svært

PLUS. Som teknisk rådgiver for partnerskabet bag det ambitiøse power-to-x-projekt i Storkøbenhavn ser Cowi primært projektet som en ny kobling af allerede eksisterende teknologier

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Pakistan battles locusts by turning them into chicken feed

Chickens in Pakistan have been feasting on captured locusts under an initiative to combat swarms of the insects that are threatening food supplies in the impoverished country.

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Pakistan battles locusts by turning them into chicken feed

Chickens in Pakistan have been feasting on captured locusts under an initiative to combat swarms of the insects that are threatening food supplies in the impoverished country.

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2020 'Dead Zone' may remain four times larger than the goal established in 2001

A recent forecast of the size of the "Dead Zone" in the northern Gulf of Mexico for late July 2020 is that it will cover 7,769 square-miles of the bottom of the continental shelf off Louisiana and Texas. The coronavirus pandemic has had no impact on the Gulf of Mexico dead zone. The unusually high Mississippi River discharge in May controls the size of this zone, which will likely be the 7th large

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What kind of face mask gives the best protection against coronavirus?

Your questions answered on what type of mask to wear to cut the risk of getting Covid-19 Coronavirus – latest updates See all our coronavirus coverage Yes. Different types of mask offer different levels of protection. Surgical grade N95 respirators offer the highest level of protection against Covid-19 infection, followed by surgical grade masks. However, these masks are costly, in limited supply

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Uproar as Uganda pursues plan to dam waterfall in national park

The boat edged as close as possible to the deafening surge of water roaring over Murchison Falls, giving tourists a hair-raising shot of one of Africa's awesome and terrifying natural spectacles.

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Så sprids giftigt protein vid alzheimer

Det är den giftiga varianten av proteinet tau som tros vara orsaken till att nervceller i hjärnan dör vid Alzheimers sjukdom. Nu visar en ny studie att spridningen av giftigt tau i hjärnan hos äldre människor sker via kopplingen mellan nervcellerna och att det är proteinet beta-amyloid som påverkar och underlättar spridningen av tau. Forskarna tror att dessa fynd kan ha stor betydelse för behandli

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Wayward whale that swam 400km upriver to Montreal found dead

A young humpback whale that swam up one of Canada's major rivers, delighting Montrealers who packed the shores for a glimpse of the first of the species in local waters, has died.

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Wayward whale that swam 400km upriver to Montreal found dead

A young humpback whale that swam up one of Canada's major rivers, delighting Montrealers who packed the shores for a glimpse of the first of the species in local waters, has died.

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Endangered Mexican wolves welcome 7 pups at Albuquerque zoo

Two endangered Mexican gray wolves housed at the Albuquerque zoo are the proud parents of seven pups, officials announced Tuesday.

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Study provides new explanation for neutrino anomalies in Antarctica

A new research paper co-authored by a Virginia Tech assistant professor of physics provides a new explanation for two recent strange events that occurred in Antarctica—high-energy neutrinos appearing to come up out of the Earth on their own accord and head skyward.

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Ancient micrometeoroids carried specks of stardust, water to asteroid 4 Vesta

The formation of our solar system was a messy affair. Most of the material that existed before its formation—material formed around other, long-dead stars—was vaporized, then recondensed into new materials. But some grains of that material, formed before the sun's birth, still persist.

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Endangered Mexican wolves welcome 7 pups at Albuquerque zoo

Two endangered Mexican gray wolves housed at the Albuquerque zoo are the proud parents of seven pups, officials announced Tuesday.

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Surgisphere: mass audit of papers linked to firm behind hydroxychloroquine Lancet study scandal

Questions continue for Surgisphere and CEO Sapan Desai as universities deny knowledge of links to firm behind Lancet's now-disputed blockbuster study Dozens of scientific papers co-authored by the chief executive of the US tech company behind the Lancet hydroxychloroquine study scandal are now being audited, including one that a scientific integrity expert claims contains images that appear to ha

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China producer prices fall as pandemic hits global demand

May factory-gate deflation comes despite recovery in domestic economy

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Language is part of the machinery of oppression – just look at how black deaths are described | Patricia Williams

From 'underlying health conditions' to 'suicide by cop', structural racism has a vocabulary Chokeholds, or "lateral vascular neck restraints", have been banned by many American police departments since the 1990s. This is sometimes hard to remember because there have been so many deaths since then, using precisely this technique. Chokeholds look like a kind of judo manoeuvre: an arm thrown around

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Vaccine mod coronavirus består test i mus

Forskere fra Københavns Universitet arbejder på at udvikle en vaccine mod COVID-19. Vaccinen…

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Remains of earliest purpose-built playhouse found in east London

Location of the Red Lion, which predated the Globe, has been subject of debate for years Archaeologists believe they have found remains of one of the most elusive of all known Elizabethan structures – the earliest purpose-built playhouse in Britain and a prototype for a theatre that staged plays by a young William Shakespeare. The Red Lion is thought to have been built around 1567 and probably pl

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AACR conjures undead Count Fakula Michael Karin

What better distraction than the COVID-19 pandemic to revive one of the spookiest parasites in cancer research? AACR uses the COVID-19 cover to award Michael Karin, for his over 50-paper-strong record of data fakery.

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Reusing chicken litter shows benefits

Beneficial bacteria in reused poultry litter can reduce Salmonella levels.

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Different hormone therapies affect brain function differently

Sex hormones influence the structure and function of the brain, but little is known about the effect of hormone therapies (HT) on changes in the brain during menopause. A new study shows smaller increases in structural brain changes related to aging were associated with hormone-level changes from transdermal estradiol or oral conjugated equine estrogen. Study results are published online in Menopa

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Study identifies strategies states use to limit local government control

A new study by researchers at NYU School of Global Public Health, published in the American Journal of Preventive Medicine, takes a closer look at the strategies state legislatures use — often behind closed doors — to pass preemptive laws that limit local government control.

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Scientists predict the best strategy for lifting COVID-19 lockdown

Scientists from the University of Oxford and the UK Centre for Ecology and Hydrology show that a gradual strategy with two discrete releases of subgroups of the quarantined population would be optimal for society as a whole to minimize deaths while protecting the economy.

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How to avoid the virus as the world reopens

A guide to where the biggest risks lie as lockdowns ease

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Test af defekte plader på Bohrs Tårn: Revner i flere facadelag

PLUS. Der er revner i alle lagene i klimaskærmen bag den tynde aluminiumsplade viser destruktivt indgreb. Der er dog også enkelte revner i det yderste lag, som består af 0,8 mm tykke bronze-anodiserede trapezplader i aluminium.

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Mineral dust increases the habitability of terrestrial planets but confounds biomarker detection

Nature Communications, Published online: 09 June 2020; doi:10.1038/s41467-020-16543-8 In this study, the authors investigate in the influence of atmospheric dust on the habitability of exoplanets. They find that atmospheric dust may postpone planetary water loss; for tidally locked planets in particular, dust can significantly widen the habitable zone by cooling the day side and warming the night

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Four gaming monitors for showing off your skills

Play better when you see better. (Florian Olivo via Unsplash/) Gaming monitors are high-powered versions of everyday computer monitors that are designed to elevate players' performance and create a more enjoyable gaming experience. Among the features that set gaming monitors apart includes a high refresh rate—that is, the image on the screen updates more often, ensuring that you're seeing the act

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Upgrade your Xbox One game with these amazing controllers

Game-changing Xbox One controllers. (Glenn Carstens-Peters via Unsplash/) If you're old enough you'll remember the mythical time when Game Genies and auto-fire controllers were all the rage. Everyone wanted to beat their friend's score in Contra or make their combos in Street Fighter 2 just a little bit easier to pull off. That mindset is back with a vengeance, thanks to the professional gaming s

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Vegetable peelers that make food prep easy

Peel better. (Amazon/) We all know that blunt knives can be more dangerous than sharp knives, but what about vegetable peelers? Before you let your frustration with dull peelers push you to pull the slicer towards you or drag it over a fingernail, consider your options beyond what you inherited from your family 10 years ago. With the right peeler you can waste less produce and prep meals like a s

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Helping Kids Cope with COVID-19 Worries

The psychological state of children may need special attention during COVID-19 impacts and isolation.

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In the W.H.O.'s Coronavirus Stumbles, Some Scientists See a Pattern

The agency's advice sometimes lags behind rapidly evolving research into the coronavirus, experts contend.

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What if The Lockdown Never Happened? New Study Examines a Terrible Alternative

In all likelihood, we have already saved millions of lives.

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Did You Recently Give Birth? Please Share Your Story

The New York Times would like to hear from women who delivered a baby in a hospital in the past month.

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Helping Kids Cope with COVID-19 Worries

The psychological state of children may need special attention during COVID-19 impacts and isolation. — Read more on ScientificAmerican.com

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Black hole's heart still beating

The first confirmed heartbeat of a supermassive black hole is still going strong more than ten years after first being observed.

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The Atlantic Daily: Minneapolis Faces a Reckoning

Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox . Minneapolis faces a reckoning. Justin Ellis, who grew up in the heart of the city's Lake Street corridor, found Floyd's death, and the violence that followed it, "inevitable." The city's progress

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Helping Kids Cope with COVID-19 Worries

The psychological state of children may need special attention during COVID-19 impacts and isolation. — Read more on ScientificAmerican.com

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Scientists and Others Stage a #Strike4BlackLives

June 10 is a day off from "business as usual" for non-Black academics and a day of rest for Black students, staff and faculty — Read more on ScientificAmerican.com

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COVID-19 shutdown prevented 60 million infections in U.S., study says

On Monday, the journal Nature published two studies on the efficacy of shutdown measures. Both concluded that shutdown efforts led to significant decreases in death and infection rates. The studies highlight how important it is to consider exponential growth when thinking about the spread of viruses. Shutting down the U.S. to limit the spread of COVID-19 has cost the nation millions of jobs and t

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Machine learning predicts nanoparticles' structure and dynamics

Researchers have demonstrated that new distance-based machine learning methods are capable of predicting structures and atomic dynamics of nanoparticles reliably. The new methods are significantly faster than traditional simulation methods used for nanoparticle research and will facilitate more efficient explorations of particle-particle reactions and particles' functionality in their environment.

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Black hole's heart still beating

The first confirmed heartbeat of a supermassive black hole is still going strong more than ten years after first being observed.

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Paper-based device provides low-power, long-term method for analyzing sweat

Researchers have constructed a paper-based device as a model of wearables that can collect, transport and analyze sweat in next-generation wearable technology. Using a process known as capillary action, akin to water transport in plants, the device uses evaporation to wick fluid that mimics the features of human sweat to a sensor for up to 10 days or longer.

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Down to the bone: Understanding how bone-dissolving cells are generated

Bone-dissolving cells called osteoclasts are derived from a type of immune cells called macrophages. They are necessary for the maintenance and renewal of bones. But the intracellular mechanisms through which macrophages convert to osteoclasts are not fully understood. Recently, scientists have uncovered the role of a protein called Cpeb4 in this process. Their findings suggest potential therapeut

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Scientists and Others Stage a #Strike4BlackLives

June 10 is a day off from "business as usual" for non-Black academics and a day of rest for Black students, staff and faculty — Read more on ScientificAmerican.com

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Coronavirus live news: WHO urges Pakistan to reimpose lockdown as Brazil restores Covid-19 data

WHO official walks back asymptomatic transmission comments; world faces worst food crisis in 50 years; UK NHS waiting list could hit 10m. Follow the latest updates Moscow relaxes lockdown despite high caseload; Nigerian deaths rise WHO calls for new lockdowns in Pakistan Brazil restores Covid-19 data to government website Australia coronavirus updates – live See all our coronavirus coverage 1.41a

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Improved MRI scans could aid in development of arthritis treatments

An algorithm which analyses MRI images and automatically detects small changes in knee joints over time could be used in the development of new treatments for arthritis.

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Parasitic fungi keep harmful blue-green algae in check

When a lake is covered with green scums during a warm summer, cyanobacteria — often called blue-green algae — are usually involved. Mass development of cyanobacteria is bad for water quality. But cyanobacteria can become sick, when for instance infected by fungal parasites. Researchers found out that these infections do not only kill cyanobacteria, they also make them easier to consume for their

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Machine learning predicts nanoparticles' structure and dynamics

Researchers have demonstrated that new distance-based machine learning methods are capable of predicting structures and atomic dynamics of nanoparticles reliably. The new methods are significantly faster than traditional simulation methods used for nanoparticle research and will facilitate more efficient explorations of particle-particle reactions and particles' functionality in their environment.

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Oregon timber harvests don't appear to affect rare salamander, study finds

The Oregon slender salamander only exists on the western slopes of the Cascades, where it lives most of the year underground or burrowed in woody debris on the forest floor.

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How effective are language learning apps?

Researchers recently conducted a study focusing on Babbel, a popular subscription-based language learning app and e-learning platform, to see if it really worked at teaching a new language.

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Researchers put a price tag on alcohol use

Alcohol use disorders are associated with high social welfare and health care costs — but what causes them? A new new study looks at the magnitude and reasons behind the economic burden alcohol use disorders have on society.

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This spreadsheet lists 500+ videos of alleged police brutality amid George Floyd protests

The publicly accessible Google Sheet lists nearly 600 incidents of alleged police misconduct. Each entry is organized by city, and most contain a link to a video. From tear gas to rubber bullets, the videos highlight the extensive powers police are given in certain situations. Activists have been compiling videos of violent clashes between protestors and police in the two weeks since George Floyd

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Researchers around the world prepare to #ShutDownSTEM and 'Strike For Black Lives'

Organizers aim to confront racism in the scientific community

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Lab makes 4D printing more practical

Soft robots and biomedical implants that reconfigure themselves upon demand are closer to reality with a method to print shapeshifting materials.

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Antihistamines and similar drugs could slow down Huntington's disease

Scientists have described a potential new therapeutic strategy for slowing down early-stage Huntington's disease.

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Study tracks decades of life cycle changes in nonwoody plants

For 25 years, Carol Augspurger visited a patch of ancient woods near Urbana, Illinois to look at the same 25 one-square-meter plots of earth she first demarcated for study in 1993. Her 600,000+ observations revealed that herbaceous plants are shifting their schedules in response to climate change, with distinct patterns for early- and late-spring-emerging plants.

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Many Have Antibodies After Coronavirus Outbreak on Carrier Roosevelt

A C.D.C. study found that some sailors showed protection against the coronavirus three months after the onset of symptoms.

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Zynn, the Hot New Video App, Is Full of Stolen Content

Multiple influencers told WIRED that their videos had been copied from other platforms and reposted to Zynn without permission.

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Homoeologous exchanges occur through intragenic recombination generating novel transcripts and proteins in wheat and other polyploids [Plant Biology]

Recombination between homeologous chromosomes, also known as homeologous exchange (HE), plays a significant role in shaping genome structure and gene expression in interspecific hybrids and allopolyploids of several plant species. However, the molecular mechanisms that govern HEs are not well understood. Here, we studied HE events in the progeny of…

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Non-Hermitian doping of epsilon-near-zero media [Applied Physical Sciences]

In solid-state physics, "doping" is a pivotal concept that allows controlling and engineering of the macroscopic electronic and optical properties of materials such as semiconductors by judiciously introducing small concentrations of impurities. Recently, this concept has been translated to two-dimensional photonic scenarios in connection with host media characterized by vanishingly…

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Common genetic susceptibility loci link PFAPA syndrome, Behcet's disease, and recurrent aphthous stomatitis [Medical Sciences]

Periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) syndrome is the most common periodic fever syndrome in children. The disease appears to cluster in families, but the pathogenesis is unknown. We queried two European–American cohorts and one Turkish cohort (total n = 231) of individuals with PFAPA for common…

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Cerebral amyloid angiopathy-linked {beta}-amyloid mutations promote cerebral fibrin deposits via increased binding affinity for fibrinogen [Neuroscience]

Cerebral amyloid angiopathy (CAA), where beta-amyloid (Aβ) deposits around cerebral blood vessels, is a major contributor of vascular dysfunction in Alzheimer's disease (AD) patients. However, the molecular mechanism underlying CAA formation and CAA-induced cerebrovascular pathology is unclear. Hereditary cerebral amyloid angiopathy (HCAA) is a rare familial form of CAA in…

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Cell-size regulation in budding yeast does not depend on linear accumulation of Whi5 [Cell Biology]

Cells must couple cell-cycle progress to their growth rate to restrict the spread of cell sizes present throughout a population. Linear, rather than exponential, accumulation of Whi5, was proposed to provide this coordination by causing a higher Whi5 concentration in cells born at a smaller size. We tested this model…

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Brain computation by assemblies of neurons [Neuroscience]

Assemblies are large populations of neurons believed to imprint memories, concepts, words, and other cognitive information. We identify a repertoire of operations on assemblies. These operations correspond to properties of assemblies observed in experiments, and can be shown, analytically and through simulations, to be realizable by generic, randomly connected populations…

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Epigenetic competition reveals density-dependent regulation and target site plasticity of phosphorothioate epigenetics in bacteria [Genetics]

Phosphorothioate (PT) DNA modifications—in which a nonbonding phosphate oxygen is replaced with sulfur—represent a widespread, horizontally transferred epigenetic system in prokaryotes and have a highly unusual property of occupying only a small fraction of available consensus sequences in a genome. Using Salmonella enterica as a model, we asked a question…

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New perspective of fracture mechanics inspired by gap test with crack-parallel compression [Engineering]

The line crack models, including linear elastic fracture mechanics (LEFM), cohesive crack model (CCM), and extended finite element method (XFEM), rest on the century-old hypothesis of constancy of materials' fracture energy. However, the type of fracture test presented here, named the gap test, reveals that, in concrete and probably all…

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Stabilization of extensive fine-scale diversity by ecologically driven spatiotemporal chaos [Population Biology]

It has recently become apparent that the diversity of microbial life extends far below the species level to the finest scales of genetic differences. Remarkably, extensive fine-scale diversity can coexist spatially. How is this diversity stable on long timescales, despite selective or ecological differences and other evolutionary processes? Most work…

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Universal vote-by-mail has no impact on partisan turnout or vote share [Political Sciences]

In response to coronavirus disease 2019 (COVID-19), many scholars and policy makers are urging the United States to expand voting-by-mail programs to safeguard the electoral process. What are the effects of vote-by-mail? In this paper, we provide a comprehensive design-based analysis of the effect of universal vote-by-mail—a policy under which…

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Theoretical issues in deep networks [Applied Mathematics]

While deep learning is successful in a number of applications, it is not yet well understood theoretically. A theoretical characterization of deep learning should answer questions about their approximation power, the dynamics of optimization, and good out-of-sample performance, despite overparameterization and the absence of explicit regularization. We review our recent…

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Hypothalamic tanycytes generate acute hyperphagia through activation of the arcuate neuronal network [Neuroscience]

Hypothalamic tanycytes are chemosensitive glial cells that contact the cerebrospinal fluid in the third ventricle and send processes into the hypothalamic parenchyma. To test whether they can activate neurons of the arcuate nucleus, we targeted expression of a Ca2+-permeable channelrhodopsin (CatCh) specifically to tanycytes. Activation of tanycytes ex vivo depolarized…

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Recognition of nonproline N-terminal residues by the Pro/N-degron pathway [Biochemistry]

Eukaryotic N-degron pathways are proteolytic systems whose unifying feature is their ability to recognize proteins containing N-terminal (Nt) degradation signals called N-degrons, and to target these proteins for degradation by the 26S proteasome or autophagy. GID4, a subunit of the GID ubiquitin ligase, is the main recognition component of the…

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Sir2 mitigates an intrinsic imbalance in origin licensing efficiency between early- and late-replicating euchromatin [Genetics]

A eukaryotic chromosome relies on the function of multiple spatially distributed DNA replication origins for its stable inheritance. The spatial location of an origin is determined by the chromosomal position of an MCM complex, the inactive form of the DNA replicative helicase that is assembled onto DNA in G1-phase (also…

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A hypoxia-induced Rab pathway regulates embryo implantation by controlled trafficking of secretory granules [Physiology]

Implantation is initiated when an embryo attaches to the uterine luminal epithelium and subsequently penetrates into the underlying stroma to firmly embed in the endometrium. These events are followed by the formation of an extensive vascular network in the stroma that supports embryonic growth and ensures successful implantation. Interestingly, in…

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Cryogenic single-molecule fluorescence annotations for electron tomography reveal in situ organization of key proteins in Caulobacter [Biophysics and Computational Biology]

Superresolution fluorescence microscopy and cryogenic electron tomography (CET) are powerful imaging methods for exploring the subcellular organization of biomolecules. Superresolution fluorescence microscopy based on covalent labeling highlights specific proteins and has sufficient sensitivity to observe single fluorescent molecules, but the reconstructions lack detailed cellular context. CET has

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Oxidation promoted osmotic energy conversion in black phosphorus membranes [Chemistry]

Two-dimensional (2D) nanofluidic ion transporting membranes show great promise in harvesting the "blue" osmotic energy between river water and sea water. Black phosphorus (BP), an emerging layered material, has recently been explored for a wide range of ambient applications. However, little attention has been paid to the extraction of the…

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Massive formation of early diagenetic dolomite in the Ediacaran ocean: Constraints on the "dolomite problem" [Earth, Atmospheric, and Planetary Sciences]

Paleozoic and Precambrian sedimentary successions frequently contain massive dolomicrite [CaMg(CO3)2] units despite kinetic inhibitions to nucleation and precipitation of dolomite at Earth surface temperatures (<60 °C). This paradoxical observation is known as the "dolomite problem." Accordingly, the genesis of these dolostones is usually attributed to burial–hydrothermal dolomitization of primary

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Elimination of rNMPs from mitochondrial DNA has no effect on its stability [Genetics]

Ribonucleotides (rNMPs) incorporated in the nuclear genome are a well-established threat to genome stability and can result in DNA strand breaks when not removed in a timely manner. However, the presence of a certain level of rNMPs is tolerated in mitochondrial DNA (mtDNA) although aberrant mtDNA rNMP content has been…

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Are the hippocampus and its network necessary for creativity? [Commentaries]

If neuroscientists who are not memory researchers were asked, "What does the hippocampus do?" they might answer that the hippocampus (HC) is important for memory, and perhaps they might specify that HC is critical for episodic memory (remembering personally experienced past events) but not for implicit (nonconscious) memory or for…

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Employing NaChBac for cryo-EM analysis of toxin action on voltage-gated Na+ channels in nanodisc [Biophysics and Computational Biology]

NaChBac, the first bacterial voltage-gated Na+ (Nav) channel to be characterized, has been the prokaryotic prototype for studying the structure–function relationship of Nav channels. Discovered nearly two decades ago, the structure of NaChBac has not been determined. Here we present the single particle electron cryomicroscopy (cryo-EM) analysis of NaChBac in…

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Revealing the three-dimensional structure of liquids using four-point correlation functions [Physics]

Disordered systems like liquids, gels, glasses, or granular materials are not only ubiquitous in daily life and in industrial applications, but they are also crucial for the mechanical stability of cells or the transport of chemical and biological agents in living organisms. Despite the importance of these systems, their microscopic…

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Molecular height measurement by cell surface optical profilometry (CSOP) [Biophysics and Computational Biology]

The physical dimensions of proteins and glycans on cell surfaces can critically affect cell function, for example, by preventing close contact between cells and limiting receptor accessibility. However, high-resolution measurements of molecular heights on native cell membranes have been difficult to obtain. Here we present a simple and rapid method…

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H1 linker histones silence repetitive elements by promoting both histone H3K9 methylation and chromatin compaction [Cell Biology]

Nearly 50% of mouse and human genomes are composed of repetitive sequences. Transcription of these sequences is tightly controlled during development to prevent genomic instability, inappropriate gene activation and other maladaptive processes. Here, we demonstrate an integral role for H1 linker histones in silencing repetitive elements in mouse embryonic stem…

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Establishing rod shape from spherical, peptidoglycan-deficient bacterial spores [Microbiology]

Chemical-induced spores of the Gram-negative bacterium Myxococcus xanthus are peptidoglycan (PG)-deficient. It is unclear how these spherical spores germinate into rod-shaped, walled cells without preexisting PG templates. We found that germinating spores first synthesize PG randomly on spherical surfaces. MglB, a GTPase-activating protein, forms a cluster that responds to the…

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FtsK in motion reveals its mechanism for double-stranded DNA translocation [Biophysics and Computational Biology]

FtsK protein contains a fast DNA motor that is involved in bacterial chromosome dimer resolution. During cell division, FtsK translocates double-stranded DNA until both dif recombination sites are placed at mid cell for subsequent dimer resolution. Here, we solved the 3.6-Å resolution electron cryo-microscopy structure of the motor domain of…

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How a raindrop gets shattered on biological surfaces [Applied Biological Sciences]

Many biological surfaces of animals and plants (e.g., bird feathers, insect wings, plant leaves, etc.) are superhydrophobic with rough surfaces at different length scales. Previous studies have focused on a simple drop-bouncing behavior on biological surfaces with low-speed impacts. However, we observed that an impacting drop at high speeds exhibits…

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Three dimensions of scientific impact [Social Sciences]

The growing popularity of bibliometric indexes (whose most famous example is the h index by J. E. Hirsch [J. E. Hirsch, Proc. Natl. Acad. Sci. U.S.A. 102, 16569–16572 (2005)]) is opposed by those claiming that one's scientific impact cannot be reduced to a single number. Some even believe that our…

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Predicting optical spectra for optoelectronic polymers using coarse-grained models and recurrent neural networks [Chemistry]

Coarse-grained modeling of conjugated polymers has become an increasingly popular route to investigate the physics of organic optoelectronic materials. While ultraviolet (UV)-vis spectroscopy remains one of the key experimental methods for the interrogation of these materials, a rigorous bridge between simulated coarse-grained structures and spectroscopy has not been established. Here,…

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Emergence of scale-free smectic rivers and critical depinning in emulsions driven through disorder [Applied Physical Sciences]

During the past 60 min, oil companies have extracted 6 trillion liters of oil from the ground, thereby giving a striking illustration of the impact of multiphase flows on the world economy. From a fundamental perspective, we largely understand the dynamics of interfaces separating immiscible fluids driven through heterogeneous environments….

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CD5 dynamically calibrates basal NF-{kappa}B signaling in T cells during thymic development and peripheral activation [Immunology and Inflammation]

Immature T cells undergo a process of positive selection in the thymus when their new T cell receptor (TCR) engages and signals in response to self-peptides. As the T cell matures, a slew of negative regulatory molecules, including the inhibitory surface glycoprotein CD5, are up-regulated in proportion to the strength…

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Functional ultrasound imaging of deep visual cortex in awake nonhuman primates [Engineering]

Deep regions of the brain are not easily accessible to investigation at the mesoscale level in awake animals or humans. We have recently developed a functional ultrasound (fUS) technique that enables imaging hemodynamic responses to visual tasks. Using fUS imaging on two awake nonhuman primates performing a passive fixation task,…

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PEBP1 acts as a rheostat between prosurvival autophagy and ferroptotic death in asthmatic epithelial cells [Immunology and Inflammation]

Temporally harmonized elimination of damaged or unnecessary organelles and cells is a prerequisite of health. Under Type 2 inflammatory conditions, human airway epithelial cells (HAECs) generate proferroptotic hydroperoxy-arachidonoyl-phosphatidylethanolamines (HpETE-PEs) as proximate death signals. Production of 15-HpETE-PE depends on activation of 15-lipoxygenase-1 (15LO1) in complex with PE-bin

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Peripheral myelin protein 22 preferentially partitions into ordered phase membrane domains [Biophysics and Computational Biology]

The ordered environment of cholesterol-rich membrane nanodomains is thought to exclude many transmembrane (TM) proteins. Nevertheless, some multispan helical transmembrane proteins have been proposed to partition into these environments. Here, giant plasma membrane vesicles (GPMVs) were employed to quantitatively show that the helical tetraspan peripheral myelin protein 22 (PMP22) exhibits…

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Cotranslational folding cooperativity of contiguous domains of {alpha}-spectrin [Biochemistry]

Proteins synthesized in the cell can begin to fold during translation before the entire polypeptide has been produced, which may be particularly relevant to the folding of multidomain proteins. Here, we study the cotranslational folding of adjacent domains from the cytoskeletal protein α-spectrin using force profile analysis (FPA). Specifically, we…

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Gender differences in the pathways to higher education [Psychological and Cognitive Sciences]

It is well known that far fewer men than women enroll in tertiary education in the United States and other Western nations. Developed nations vary in the degree to which men are underrepresented, but the Organization for Economic Co-operation and Development (OECD) average lies around 45% male students. We use…

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ALS/FTD mutations in UBQLN2 impede autophagy by reducing autophagosome acidification through loss of function [Neuroscience]

Mutations in UBQLN2 cause amyotrophic lateral sclerosis (ALS), frontotemporal dementia (FTD), and other neurodegenerations. However, the mechanism by which the UBQLN2 mutations cause disease remains unclear. Alterations in proteins involved in autophagy are prominent in neuronal tissue of human ALS UBQLN2 patients and in a transgenic P497S UBQLN2 mouse model…

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Nanoscale co-organization and coactivation of AMPAR, NMDAR, and mGluR at excitatory synapses [Neuroscience]

The nanoscale co-organization of neurotransmitter receptors facing presynaptic release sites is a fundamental determinant of their coactivation and of synaptic physiology. At excitatory synapses, how endogenous AMPARs, NMDARs, and mGluRs are co-organized inside the synapse and their respective activation during glutamate release are still unclear. Combining single-molecule superresolution microsco

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Unveiling defect-mediated carrier dynamics in monolayer semiconductors by spatiotemporal microwave imaging [Applied Physical Sciences]

The optoelectronic properties of atomically thin transition-metal dichalcogenides are strongly correlated with the presence of defects in the materials, which are not necessarily detrimental for ce