Scientists help protect sharks by developing aquarium breeding programs that pair up individuals in ways that increase genetic diversity. In a new study in Scientific Reports, scientists undertook the largest-ever effort to artificially inseminate sharks.Their work resulted in 97 new baby sharks, including ones whose parents live on opposite sides of the country and a few that don't have fathers a
Pump and Dump On Wednesday evening, Tesla CEO Elon Musk announced that the automaker would no longer accept Bitcoin payments, just months after it first started accepting the cryptocurrency . The move sent shockwaves through the Bitcoin community — and caused the crypto's value to plummet — with cryptocurrency holders accusing Musk, in strident terms, of manipulating the market . "For the million
Wild orangutans are known for their ability to survive food shortages, but scientists have made a surprising finding that highlights the need to protect the habitat of these critically endangered primates, which face rapid habitat destruction and threats linked to climate change.
While its doors have been closed to the public, scientists have been busy digitising its vast archive – from 100-year-old insects to rare minerals The main exhibition room at the Natural History Museum in London is cathedral-like, with Hope the blue whale suspended mid-air like a demigod. Filled with specimens collected by explorers, this remarkable place teaches us about the evolution of life on
On 29 April, China launched the first module of its biggest space station yet atop a Long March 5B rocket. Now, part of that rocket is hurtling back towards Earth, and there is no way to predict exactly where or when it will land
China is about to launch the first section of a new space station, beginning a massive orbital construction project that is expected to end in 2022 with an outpost about a quarter of the size of the International Space Station
A malaria vaccine produced by the team behind the Oxford/AstraZeneca coronavirus vaccine is 77 per cent effective in trials, offering hope of controlling a disease that kills an estimated 400,000 people each year, many of them children
Seven Minutes of Terror China will attempt to land its Zhurong Mars lander some time late Friday evening, as part of its Tianwen-1 mission. Speaking at a Thursday morning conference, Ye Peijian, China Association for Science and Technology's chief adviser of Interplanetary Exploration, revealed that the capsule will start its "seven minutes of terror" at around 11 pm UTC on May 14, around 7:11 pm
Should you have a lateral flow test before sex? Is it essential to wait until you're fully vaccinated? Doctors, scientists and other experts answer the big questions "Hugs," everybody keeps saying. "Who do you most want to hug on 17 May?" It's an absurd act of prudishness. The real headline of next Monday is, of course, that this is the first day on which it will be legal (in England and most of
A form of SARS-CoV-2 called B.1.617.2, which was designated a "variant of concern" by health authorities in England, appears to be at least as transmissible as B.1.1.7, the "Kent variant" that now dominates in the UK – but doesn't seem more dangerous
Countries in the European Union should be legally required to recycle critical metals in electronic waste, a report has found. The proposed law would be unprecedented and could drive countries outside the EU to follow suit
Facebook's independent Oversight Board has said the social media giant was right to ban former US president Donald Trump, but has declined to decide whether it should be permanent – punting the decision back to Facebook
A bay in south-west Japan could become the place on Earth that geologists use to officially establish the start of the Anthropocene, thanks to an abundance of sardine scales that mark humanity's growing influence on the planet
" How to Build a Life " is a weekly column by Arthur Brooks, tackling questions of meaning and happiness. Arthur C. Brooks will discuss the science of happiness live at 11 a.m. ET on May 20. Register for In Pursuit of Happiness here . M any years ago, I met a woman who had had the kind of experience you ordinarily only find in fiction. As a young adult, she was in a serious car accident, resultin
On May 10, the World Health Organization added a new virus to its list of covid-19 variants of global concern. The variant, B.1.617, is being blamed for the runaway infections in India. It is the fourth addition to a list that also includes variants first identified in the UK, South Africa, and Brazil. "There is some available information to suggest increased transmissibility," said Maria Van Ker
Newly conceived "Oxygen Express" trains are re-routing supplies across India to meet a severe shortage of medical-grade oxygen, as the country's coronavirus cases hit a record peak for the fifth day in a row
This article was published online on May 13, 2021. T he suburban gentry of Chevy Chase, Maryland, had some difficulty making sense of Brett Kavanaugh's descent into villainy that fall. He had always seemed so nice and nonthreatening to his neighbors, so normal —the khaki-clad carpool dad who coached the girls' basketball team and yammered endlessly about the Nats. It was true that his politics we
The amount of sea level rise coastal cities are facing in the coming century from melting ice could be roughly halved if the world meets the Paris Agreement's toughest goal of holding global warming to 1.5°C
The disaster at the Chernobyl nuclear power plant is now more than 35 years in the past, but the possibility of another disaster has yet to fade completely. Recently, engineers completed the construction of the New Safe Confinement (NSC). The NSC was supposed to stabilize the site, which is still highly radioactive and full of fissile material. However, some worrying signals have emerged from the
The covid-19 pandemic is a catastrophe that could have been averted, say a panel of 13 independent experts tasked with assessing the global response to the crisis. Their report, released May 12 and commissioned by the WHO, lambasts global leaders who failed to heed repeated warnings, wasted time, hoarded information and desperately needed supplies, and failed to take the crisis seriously. While s
Vital international scientific work, including studies into how viruses spread, is being jeopardised by short-sighted cuts Given the ambitions outlined in the government's integrated review of " Global Britain in a Competitive Age ", you could be forgiven for thinking that research into the causes, detection and control of emerging infectious diseases with pandemic potential was being taken prett
Itching is associated with many diseases and in some cases can be debilitating, but diagnosing chronic itching is difficult because there is no objective way to measure the sensation – now a wearable sensor could help
The stakes couldn't be higher for the coming UN COP26 climate summit. Nations and individuals need to adopt a new mindset if we are to slash emissions – and that means more than separating out the recycling and buying low-energy light bulbs
Yulia Peresild and Klim Shipenko will undergo training before making film being billed as a 'space drama' Russia's space agency has said it will send an actor and a director to the International Space Station in October to make the first feature film in space. "Filming will take place at the International Space Station. The start of the expedition is scheduled for 5 October 2021 from the Baikonur
Boris Johnson promises a public inquiry into the pandemic, but our scientific community could provide more honest answers Boris Johnson's promise of a public inquiry into the handling of the pandemic is welcome, but tardy and vague. It is scarcely surprising that the government has been dragging its feet, for no independent, objective and credible inquiry could be anything but devastating about t
In 1882, Josias R. King made a mess of mapping Coddington Lake, making it larger than it actually is. For decades, Minnesota loggers left the local trees alone, thinking they were under water. Today, the area is one of the last remaining patches of old-growth forest in the state. Vanishingly rare, but it exists: a patch of Minnesota forest untouched by the logger's axe. Credit: Dan Alosso on Subs
The purest eruption of spite I have ever witnessed took place at a former friend's birthday party some years ago. We were all in our early 20s, and alcohol had been flowing freely. I slipped into the kitchen to refill my drink; when I returned, the birthday girl, her cheeks flushed from the wine, had become incensed at her boyfriend for some unaccountable transgression. On the coffee table was an
A few weeks ago, I met my first Millennial grandparent. I was interviewing a woman in her late 30s about President Joe Biden's new child-tax-credit proposal, and she mentioned that it would benefit not just her two young kids but her older son's kid too. The incidental meeting was a reminder both that Millennials are getting older and that they are doing so without growing up, at least not in the
Rymdsonden Voyager 1 lämnade för några år sedan vårt solsystems skyddande bubbla och har nu sänt hem data som berättar hur rymden ser ut där ute. Det är glest mellan partiklarna – men inte helt tomt. Spela klippet för att höra signalerna som Voyager 1 har plockat upp.
All modern life is composed of cells, from single-celled bacteria to more complex organisms such as humans, which may contain billions or even trillions of cells. But how life came to be cellular remains uncertain. New research led by specially appointed assistant professor Tony Z. Jia at the Earth-Life Science Institute (ELSI) at Tokyo Institute of Technology, along with colleagues from around th
Nature-based solutions (NbS) can contribute to the fight against climate change up to the end of our century, according to new Oxford research in the leading scientific journal Nature. The analysis suggests that, to limit global temperature rise, we must slash emissions and increase NbS investment to protect, manage and restore ecosystems and land for the future.
During the first coronavirus lockdown, air pollution halved in the UK, but more recent lockdowns saw a drop of only 28 per cent as more people used gas boilers while working from home and for keeping warm during the winter
The US support for lifting intellectual property rights on covid-19 vaccines is unlikely to boost vaccine supplies in the short term, but an IP waiver may increase vaccine production in more countries over the next year
On a geological timescale, the emergence of the human "dataome" is like a sudden invasion by extraterrestrials, or an asteroid impact that precipitates a mass extinction — Read more on ScientificAmerican.com
Scientists have begun the search for extraterrestrial life in the solar system in earnest, but such life may be subtly or profoundly different from Earth life, and methods based on detecting particular molecules as biosignatures may not apply to life with a different evolutionary history. A new study by a joint Japan/US-based team, led by researchers at the Earth-Life Science Institute (ELSI) at t
Flip Flop In a blindside that caught the cryptocurrency world by surprise, Tesla CEO Elon Musk tweeted last night that the car company would suspend car purchases using Bitcoin . The reasoning: concerns over Bitcoin mining harming the environment. "We are concerned abut rapidly increasing use of fossil fuels for Bitcoin mining and transactions, especially coal, which has the worst emissions of an
Traffic noise leads to inaccuracies and delays in the development of song learning in young birds. They also suffer from a suppressed immune system, which is an indicator of chronic stress. A new study by researchers of the Max Planck Institute for Ornithology and colleagues shows that young zebra finches, just like children, are particularly vulnerable to the effects of noise because of its poten
Epic Games, the maker of online video game Fortnite, is currently facing Apple in a US federal court in a trial that could not just decide how mobile apps are regulated, but how technology firms can act in general, says Frederike Kaltheuner
Free from human disturbance for a century, an inland island in Central America has nevertheless lost more than 25% of its native bird species since its creation as part of the Panama Canal's construction, and scientists say the losses continue.
The 'ideal student' – valued by both learners and university staff – is a punctual, organized, hard worker and enthusiastic learner – rather than someone with excellent academic results, high intelligence and good employability.
Scientists exploring the drivers of Antarctic climate change have discovered a new and more efficient pathway for the creation of natural aerosols and clouds which contribute significantly to temperature increases.
With restrictions in England due to be further relaxed on 17 May, new coronavirus variants first detected in India are spreading across the UK. Public Health England designated one, known as B.1.617.2, as a 'variant of concern' last week. It is now the second most common variant in the country. Anand Jagatia speaks to the Guardian science correspondent Nicola Davis and Prof Ravi Gupta about what
Public health officials and scientists are investigating a rise in infections to verify the risk Coronavirus – latest updates See all our coronavirus coverage In recent weeks the UK has recorded a rapid rise in the number of Covid infections caused by a variant of the virus first detected in India last year. Public health officials and scientists are investigating the increase to understand what
After a gap of more than four years, the Environmental Protection Agency is relaunching a website highlighting evidence of climate change in the United States, including rising temperatures, increased ocean acidity, sea level rise, river flooding, droughts, heat waves and wildfires.
T o be in America now is to witness two jarring realities at once: the quickening pace of the country's return to normalcy and the worsening march of COVID-19 beyond its borders. U.S. cities are loosening restrictions, travel is picking back up, and Americans are preparing for a bacchanalian summer. At the same time, a surge of infections in countries including Brazil and India is producing death
Unique observations collected by U.S. Geological Survey scientists during Hurricane María in 2017 revealed previously unknown ocean processes that may aid in more accurate hurricane forecasting and impact predictions.
Today, the rocks of the Hanna Formation in south-central Wyoming are hundreds of miles away from the nearest ocean. But around 58 million years ago, Wyoming was oceanfront property, with large hippo-like mammals traipsing through nearshore lagoons.
As far as odds go, things don't look promising for the slender-nerved acacia (Acacia leptoneura), a spiky plant with classic yellow-ball wattle flowers. With most of its habitat in Western Australia's wheat belt cleared for agriculture, it was considered extinct for more than 160 years.
It's a tough time to be a shark. Pollution, industrialized fishing, and climate change threaten marine life, and the populations of many top ocean predators have declined in recent years. In addition to studying sharks in the wild, scientists working to save sharks rely on ones living in zoos and aquariums so that they can help build breeding programs and learn more about the conditions sharks nee
Precisely regulating the electronic structures of metal active species is highly desirable for electrocatalysis. Carbon-based substrates with inert surface provide weak metal-support interaction and thus are unable to modulate their electronic structures effectively.
The once-abundant California condor briefly went extinct in the wild, with only 22 individuals living in captivity by 1982. Today, 300 condors live freely in the wild and another 200 are in captivity. But, despite the condor's struggles, a new study of the California condor genome reported in the journal Current Biology on May 13 has found a surprising amount of genetic diversity.
A research group has developed an ion-selective smart porous membrane that can respond to outer stimuli, potentially paving the way for new applications in molecular separation and sensing applications.
Two recent papers from Hungarian researchers highlight the so far underrated relevance of pet dog biobanking in molecular research and introduce their initiative to make pioneering steps in this field. The Hungarian Canine Brain and Tissue Bank (CBTB) was established by the research team of the Senior Family Dog Project in 2017, following the examples of human tissue banks. In a recent paper, the
World-first nanotechnology developed by the University of South Australia could change the lives of thousands of people living with cystic fibrosis (CF) as shows it can improve the effectiveness of the CF antibiotic Tobramycin, increasing its efficacy by up to 100,000-fold.
Modern human activity adds large amounts of nutrients to the environment, especially nitrogen, which is added faster than other nutrients. Although plants depend on nitrogen to live and grow, an excess of a single nutrient in a complex ecosystem may do more harm than good.
Ayanna Howard has always sought to use robots and AI to help people. Over her nearly 30-year career, she has built countless robots: for exploring Mars, for cleaning hazardous waste, and for assisting children with special needs. In the process, she's developed an impressive array of techniques in robotic manipulation, autonomous navigation, and computer vision. And she's led the field in studyin
A study, in which the UPV/EHU-University of the Basque Country participated, has for the first time assembled and annotated the complete genome of the raccoon dog, a species originating in East Asia but introduced into Europe, where it has settled. The work will provide a reference for future evolutionary, ecological, carnivore-based studies that involve gene-disease association and chromosome arc
A new discovery led by Princeton University could upend our understanding of how electrons behave under extreme conditions in quantum materials. The finding provides experimental evidence that this familiar building block of matter behaves as if it is made of two particles: one particle that gives the electron its negative charge and another that supplies its magnet-like property, known as spin.
Researchers at Brussels Photonics, Vrije Universiteit Brussel, have developed a 'first time right' design method that eliminates the "step-and-repeat" and "trial-and-error" approach in optical system design. They demonstrated the systematic, deterministic, scalable, and holistic character of their disruptive technique with various freeform lens- and mirror-based high-end examples and invite optica
Around 700 child deaths that occur in England each year might be avoided by reducing deprivation, finds a new NHS England-funded report published today [13 May]. The University of Bristol National Child Mortality Database (NCMD)-led analysis identified a clear association between the risk of death and level of deprivation for children in England, for all categories of death except cancer.
According to an open-access Editor's Choice article in ARRS' American Journal of Roentgenology, CT features may help identify which patients with stage IA non-small cell lung cancer are optimal candidates for sublobar resection, rather than more extensive surgery. In patients with stage IA non-small cell lung cancer, pathologic lymphovascular invasion was observed only in solid-dominant part solid
Astronomers commonly refer to massive stars as the chemical factories of the Universe. They generally end their lives in spectacular supernovae, events that forge many of the elements on the periodic table. How elemental nuclei mix within these enormous stars has a major impact on our understanding of their evolution prior to their explosion. It also represents the largest uncertainty for scientis
Scientists with UT Southwestern's Peter O'Donnell Jr. Brain Institute have identified the molecular mechanism that can cause weight gain for those using a common antipsychotic medication. The findings, published in the Journal of Experimental Medicine, suggest new ways to counteract the weight gain, including a drug recently approved to treat genetic obesity, according to the study, which involved
In The Optical Society (OSA) journal Optics Letters, University of Stuttgart researchers detail how they used a type of 3D printing known as two-photon lithography to create lenses that combine refractive and diffractive surfaces.
Cooperation as a successful strategy has evolved in both nature and human society, but understanding its emergence can be a difficult task. Researchers have to abstract interactions between individuals into mathematical formulas to be able to create a model that can be used for predictions and simulations.
Exactly 30 years ago, I was pondering a graph of primate group sizes plotted against the size of their brains: the larger the brain, the larger the group size. I was curious to know what group size this relationship might predict for humans.
A new study by WCS (Wildlife Conservation Society) looks at the prevalence of human consumption of lemur and fossa (Madagascar's largest predator) in villages within and around Makira Natural Park, northeastern Madagascar, providing up-to-date estimates of the percentage of households who eat meat from these protected species.
A new study, by researchers from Simon Fraser University and the Department of Fisheries and Oceans, reveals the trade-offs of fish biodiversity—its costs and benefits to mixed-stock fisheries—and points to a potential way to harness the benefits while avoiding costs to fishery performance.
The recent advent of femtosecond X-ray sources offers unprecedented opportunities for structural and dynamical studies. It requires, however, manipulating spectral properties, as commonly done by non-linear optics at visible/infrared wavelengths. Here we show the first evidence for Self-Phase Modulation, a key non-linear effect in ultrafast laser science, in soft X-Rays. Building on such an effect
The ATLAS and CMS experiments at the Large Hadron Collider (LHC) have performed luminosity measurements with spectacular precision. A recent physics briefing from CMS complements earlier ATLAS results and shows that by combining multiple methods, both experiments have reached a precision better than 2%. For physics analyses—such as searches for new particles, rare processes or measurements of the
Monitoring alignments of the building blocks of cells is important to understand how the cells are built. By collaborating with imaging scientists at the MBL, researchers from Japan have developed a new probe which they call POLArIS, allowing real-time imaging of molecular orientations in live cells.
My mentor and friend Michael Atkinson, who has died aged 95, was for many years professor of gastroenterology at the University of Nottingham, where one of his most important contributions was the development of the Atkinson tube, which helps people with oesophageal cancer to swallow. Born in Rawdon, just outside Leeds, to Herbert, a plumbers' merchant, and his wife, Janet (nee Palliser), a postm
Five percent of New Zealand houses lack at least one of six basic amenities including drinkable tap water, electricity, a toilet, and a kitchen sink, a new report from the He Kāinga Oranga Housing and Health Research Program at the University of Otago, Wellington has found.
Much compelling evidence from astroparticle physics and cosmology indicate that the major matter component in the Universe is dark matter, accounting for about 85% with the remaining 15% ordinary matter. Nevertheless, people still know little about dark matter, including its mass and other properties. Many models predict dark matter particles could couple with ordinary particles at the weak intera
Materials in a glassy state are everywhere in our lives and have contributed to humanity for many years. Today, they play a critical role in various technologies, including optical fibers. Although we believe that glass is highly stable, it sometimes crystallizes, resulting in loss of transparency and isotropy, essential characteristics of glass, which has been a significant problem in industrial
Following the minuscule movements of every cell in a petri dish would be a painstaking task for any human. But teach a set of computer programs to do the job, and they can complete it quickly and even observe things that the human eye would miss.
Everyone has sat outside on a sunny day and been warmed by the sun's rays. This happens through a process known as radiative heat transfer: the sun emits light (electromagnetic radiation), which travels to the Earth and heats up the objects that absorb it. Radiative heat transfer is also the mechanism behind thermal cameras.
A team of researchers from the National Institute of Polar Research, the University of California, Santa Cruz and the University of North Carolina has found that adult female northern elephant seals dive deep into the ocean to forage for small fish for up to 18 hours a day. In their paper published in the journal Science Advances, the group describes their study of the large sea creature, which in
Cytokine-activated natural killer (NK) cells derived from donated umbilical cord blood, combined with an investigational bispecific antibody targeting CD16a and CD30 known as AFM13, displayed potent anti-tumor activity against CD30+ lymphoma cells, according to a new preclinical study from researchers at The University of Texas MD Anderson Cancer Center.
A group of science communication researchers proposes to treat the Covid-19 misinformation "infodemic" with the same methods used to halt epidemics: real-time surveillance, accurate diagnosis, and rapid response.
People who work nontraditional work hours, such as 11 p.m.-7 p.m., or the "graveyard" shift, are more likely than people with traditional daytime work schedules to develop a chronic medical condition — shift work sleep disorder — that disrupts their sleep. According to researchers at the University of Missouri, people who develop this condition are also three times more likely to be involved in
New research from Washington University School of Medicine in St. Louis shows that non-Hispanic African American women with triple-negative breast cancer have lower survival rates than non-Hispanic white women with this type of breast cancer. The study demonstrates the need for additional research to address disparities in cancer care and understand whether tumor biology or nonbiological reasons s
The same biases that exist for women physicians in person also exist in social media networking, a new Northwestern Medicine study reports. What's more, a previous study found women physicians are twice as likely to face sexual harassment online than men. The new study's findings speak to gender-equity issues for professional women outside medical field.
The majority of children infected with SARS-CoV-2 may not show typical symptoms such as fever, cough or shortness of breath, according to a study published in Scientific Reports, which examined data on 12,306 children with laboratory-confirmed COVID-19 across the United States.
Cooperation plays a crucial role in evolution. A team of scientists around Laura Schmid from the Chatterjee group at the Institute of Science and Technology (IST) Austria has now created a new model that shows how different kinds of cooperative strategies among humans develop. Using their unified framework, they show how an individual's experience and the reputation of others influence the emergen
A new study with zebrafish shows that a deadly form of skin cancer — melanoma — alters the metabolism of healthy tissues elsewhere in the body. The research from Washington University in St. Louis suggests that these other tissues could potentially be targeted to help treat cancer.
Climate change may be accelerating the degradation of ancient rock paintings in Indonesia, including the oldest known hand stencil in the world which dates back to 39,900 years ago, according to a study published in Scientific Reports.
Fossilised footprint tracks, recently discovered within the Hanna Formation in Wyoming, USA, which have been dated to 58 million years ago, may represent the earliest evidence of mammals gathering by the sea, according to a study published in Scientific Reports. Findings suggest that mammals may have first used marine habitats at least 9.4 million years earlier than previously thought, in the late
Artificial food colorants can cause disease when the immune system has become dysregulated, Icahn School of Medicine at Mount Sinai researchers report. The study, published in Cell Metabolism in May, was the first to show this phenomenon.
Scientists from Sydney and New York, inspired by Black Lives Matter, describe the critical worldwide need to improve the diversity of cells used in medical research. Currently, 95% of all human cell lines used in research are of European descent. The authors provide actionable steps, in this publication in Cell, that researchers and the biomedical community can take to promote more inclusivity in
The study found evidence that "hype" over assets is psychologically contagious among investors in online communities. This hype is self-perpetuating: A small group of investors hypes an asset, bringing in new investors, until growth becomes unsteady and a price crash ensues. The researchers suggested that these new kinds of self-organized, social media-driven investment behaviors are unlikely to
NASA has been working on the James Webb Space Telescope (JWST) for the better part of two decades, and it's almost ready for launch. When operating in space, the JWST will be the most powerful telescope ever built, but it'll all be for naught if the giant segmented mirror cannot deploy correctly. NASA has just completed the final pre-launch test of the mirror . The next time it deploys, the JWST
What has the coronavirus pandemic taught us about ourselves and our relationships? In a deeply personal and wide-ranging conversation, leadership expert Simon Sinek shares his own experience caring for his mental health as the world shut down. He discusses why we need to nurture friendships (in both good times and bad), explains why anyone can be a leader — and reveals the secret to discovering y
Mechanical engineers have developed a unique way to use an ancient Japanese art form for a very 21st-century purpose. Douglas Holmes, an associate professor of mechanical engineering at the Boston University College of Engineering, studies how materials change shape when they are bent or warped by external forces. In a paper published this week in Science Robotics , Holmes and PhD student Yi Yang
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. House Republicans demonstrated their fidelity to the former president once again by ousting Liz Cheney from congressional party leadership. Cheney's primary sin was continuing to condemn Trump's e
A team of physicists from Germany, the .S. and the U.K. managed to observe the motion of electrons from one atomically thin layer into an adjacent one with nanoscale spatial resolution. The new contact-free nanoscopy concept, which shows great potential for investigations into conducting, nonconducting and superconducting materials, will be introduced in the new volume of the science journal Natur
Among other things, dams serve as reservoirs for drinking water, agricultural irrigation, or the operation of hydropower plants. Until now, it had been assumed that dams act as net carbon stores. Researchers from the Helmholtz Centre of Environmental Research (UFZ) together with Spanish scientists from the Catalan Institute for Water Research (ICRA) in Girona and the University of Barcelona showed
Climate change may be accelerating the degradation of ancient rock paintings in Indonesia, including the oldest known hand stencil in the world which dates back to 39,900 years ago, according to a study published in Scientific Reports.
University of Massachusetts Amherst neuroscientists examining genetically identified neurons in a songbird's forebrain discovered a remarkable landscape of physiology, auditory coding and network roles that mirrored those in the brains of mammals.
There are a lot of slick ideas in molecular and chemical biology that depend on immobilizing proteins or small molecules onto solid supports. Consider affinity chromatography: if you can tether a "bait" onto some solid matrix, you can then flow all sorts of mixtures over it (gorp from freshly lysed cells, for example) and let the tightest binding partners stick to the column material while you me
When Ram Raghavan heard from a former colleague at the Centers for Disease Control and Prevention that a 7-year-old girl had died from Rocky Mountain spotted fever as the result of a tick bite, he thought of his own daughter, also 7 years old at the time, and the potentially fatal danger posed to vulnerable populations by tick-borne diseases.
In a study conducted by researchers at HSS, cumulative opioid use was reduced by 30% in a patient group that received duloxetine after total knee arthroplasty (TKA) compared with patients who received placebo. Patients who received duloxetine also reported higher pain management satisfaction and less pain interference with mood, walking, normal sleep, and work activities. These findings were prese
Clinicians and scientists have long observed that cells in overstressed hearts have high levels of the simple sugar O-GlcNAc modifying thousands of proteins within cells. Now, researchers at Johns Hopkins Medicine have found evidence in mouse experiments that these excess sugars could well be a cause, not merely a consequence or marker of heart failure.
T he recall election coming later this year for California Governor Gavin Newsom doesn't appear likely to end with his removal from office. Although Newsom's opponents have gathered enough signatures to require a vote—and conditions in the state could still change—polls show that public support for the effort is far below what Newsom's critics will need to force his removal. Nevertheless, the dri
With restrictions in England due to be further relaxed on 17 May, new coronavirus variants first detected in India are spreading across the UK. Public Health England designated one, known as B.1.617.2, as a 'variant of concern' last week. It is now the second most common variant in the country. Anand Jagatia speaks to the Guardian science correspondent Nicola Davis and Prof Ravi Gupta about what w
Last year, just for the heck of it, Scott Field and Gaurav Khanna tried something that wasn't supposed to work. The fact that it actually worked quite well is already starting to make some ripples. Field and Khanna are researchers who try to figure out what black hole collisions should look like. These violent events don't produce flashes of light, but rather the faint vibrations of gravitational
Research conducted by an international team of scientists discovered a mechanism that leads to Herceptin resistance, representing a significant clinical obstacle to successfully treating HER2-positive breast cancer. They also identified a new approach to potentially overcome it.
Nature, Published online: 13 May 2021; doi:10.1038/d41586-021-00749-x Nature is asking former scientists from under-represented groups in the United States about their reasons for leaving, and where they ended up.
I celebrated my second pandemic birthday recently. Many things were weird about it: opening presents on Zoom, my phone's insistent photo reminders from "one year ago today" that could be mistaken for last month, my partner brightly wishing me " iki domuz ," a Turkish phrase that literally means "two pigs." Well, that last one is actually quite normal in our house. Long ago, I took my first steps
Peptides play a vital role with a huge range of medical uses including in antibiotics and anti-cancer drugs. Altering the structure of natural peptides to improve compounds is of great interest to scientists and industry. But how these peptides are produced still isn't clearly understood. Researchers have revealed a key aspect of peptide machineries in a new artcle that provides a key to the 'Holy
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Spatial-frequency-shift microscopy with evanescent wave illumination shows intriguing advantages, including a large field of view, high speed, and good modularity. However, a missing band in the spatial frequency domain hampers the spatial-frequency-shift superresolution microscopy from achieving resolution better than 3 folds of the Abbe diffraction limit. Recently researchers at Zhejiang Univers
Gene therapy has shown promise in recent years for treating a range of diseases, including sickle-cell anemia , hemophilia , various forms of inherited blindness , mesothelioma , and Duchenne muscular dystrophy . A new success story may soon be added to this list, with the publication yesterday of the outcomes of a clinical trial that used gene therapy to cure a rare immune system disorder in inf
World-first nanotechnology developed by the University of South Australia could change the lives of thousands of people living with cystic fibrosis (CF) as groundbreaking research shows it can improve the effectiveness of the CF antibiotic Tobramycin, increasing its efficacy by up to 100,000-fold.
Accurate and focused information about COVID-19 from credible sources reduces stigmatisation and stress, according to a world-first study led by Monash University. Foreigners, minorities, police and frontline workers were blamed for spreading the virus in India. The study was conducted during the first wave of the virus. Researchers say elements of stigmatisation are still valid as India battles a
The first study to analyze snake removals in a social-ecological context was recently published by an Arizona State University conservation biologist working with a local rattlesnake removal company."I think one of the surprises was that people don't hate snakes," said researcher Heather Bateman of the College of Integrative Sciences and Arts. "A lot of them responded that the snakes are important
Eating a diet rich in fruit and vegetables is associated with less stress, according to new research from Edith Cowan University (ECU). The findings revealed people who ate at least 470 grams of fruit and vegetables daily had 10 per cent lower stress levels than those who consumed less than 230 grams.
As we move through the world, what we see is seamlessly integrated with our memory of the broader spatial environment. How does the brain accomplish this feat? A new study from Dartmouth College reveals that three regions of the brain in the posterior cerebral cortex, which the researchers call "place-memory areas," form a link between the brain's perceptual and memory systems. The findings are pu
Negative stereotypes about men and women creep into performance reviews, research finds. A take-charge attitude at work typically earns men positive performance reviews, but for women, assertiveness only gets them so far. Although workplace evaluations are supposed to be merit-based, the study finds that gender bias too often influences how supervisors rate employees, resulting in women having to
A poor sense of smell may indicate an older person's higher risk of pneumonia, research finds. An acute loss of smell is one of the most common symptoms of COVID-19, but for two decades it has been linked to other conditions, such as Parkinson's disease and dementia. "About a quarter of adults 65 years or older have a poor sense of smell," says Honglei Chen, a professor in the department of epide
The impacts of a closed border and recent floods have highlighted the challenges facing older Australians who live permanently in caravan parks and manufactured home estates. These properties have long provided affordable housing for retirees, particularly those who rely on the age pension and have limited assets or housing equity. Residents typically own their caravan or mobile home and pay a reg
White evangelicals are best persuaded to mask up through messages that stress the Christian doctrine of "love thy neighbor," according to a UCR-authored study published Tuesday. The study yielded a second effective way to persuade white evangelicals – but only if they are Republican. That is, messaging from former President Donald Trump that aligns mask-wearing with patriotism. The lessons learned
Among cancer patients with health coverage in Southern California, those who were diagnosed and treated at Kaiser Permanente, an integrated health care organization, had better survival rates, especially Black and Latino patients, according to Kaiser Permanente research published in The American Journal of Managed Care.
We retrospectively reviewed clinical information of pediatric patients whose CSF was analyzed for NMDAR antibodies, and evaluated the 2016 diagnostic criteria for anti-NMDA receptor encephalitis. The criteria showed high sensitivity but low positive predictive value in our cohort. However, majority of the false positive cases were associated with a neuroimmunological disease. Collectively, physici
Nature, Published online: 13 May 2021; doi:10.1038/d41586-021-01258-7 The first spacecraft to visit interstellar space has now become the first to make continuous measurements of waves in that remote realm.
Payment defaults are also more frequent among families with children and the recently divorced and their accumulation is common especially among young people and those with credit card and installment payment debt, according to a recent study.
Twenty-seven years ago, more than 1 million Rwandans were killed during the genocide against the Tutsi in Rwanda (April 7-July 4, 1994). It is estimated that 100,000 to 250,000 women were raped during the genocide, and that 10,000 children were born as a result. A new study finds that Rwandans who were conceived by mothers who survived this genocide have poorer adult health outcomes than those who
Our dynamically changing lifestyle can make it hard for many to stay motivated on work and study, which calls for new intervention strategies. In a recent study published in BMC Psychology, researchers explore how nurturing feelings of gratitude can enhance motivation among college students. Their results show that a keeping a daily gratitude journal for only two weeks has a positive impact on aca
We have another incremental advance with brain-machine interface technology, and one with practical applications. A recent study (by Krishna Shenoy, a Howard Hughes Medical Institute investigator at Stanford University and colleagues) demonstrated communication with thought alone at a rate of 15 words (90 characters) per minute, which is the fastest to date. This is also about as fast as the aver
Fish provide important dietary nutrients, such as essential proteins, lipids and polyunsaturated fatty acids (PUFA). However, they are also a major contributor to the potent neurotoxin mercury (Hg) exposure to humans.
In an era of data breaches and experts wondering if your very thoughts could be filed in a database for sale somewhere as new technologies catch on, it pays to think about privacy. Virtual private networks (VPNs) help keep your data yours, and one of the best-reviewed VPNs, NordVPN, currently has a two-year subscription for $89, 68% off , and $10 in StackSocial.com store credit. VPNs protect your
An incredible fossil discovery of two fighting mammoths has been highlighted for the first time in a new book on prehistoric behavior, "Locked in Time: Animal Behavior Unearthed in 50 Extraordinary Fossils."
PLUS. Da coronaen lukkede landet ned og sendte medarbejderne hjem, måtte lederen genopfinde sig selv med det virtuelle møde som omdrejningspunkt. En svær disciplin i dansk sammenhæng, hvor uformel ledelse dominerer, lyder det fra eksperterne.
A group of anesthesiology researchers in China have lost their 2020 paper on nerve blocks during lung surgery after finding that the work contained "too many" errors to stand. But after hearing from the top editor of the journal, it's pretty clear "too many errors" was a euphemism for even worse problems. The article, "Opioid-sparing … Continue reading
Nature Communications, Published online: 13 May 2021; doi:10.1038/s41467-021-23455-8 Opportunities for early career researchers (ECRs) to engage with the peer review and publication process can be few and far between. Last year, we launched a pilot support programme to introduce ECRs to peer review.
Nature Communications, Published online: 13 May 2021; doi:10.1038/s41467-021-23456-7 The year 2020 brought unprecedented challenges, and opportunities to reassess and reaffirm our values. As our anniversary year draws to a close, we reflect on achievements and areas for improvement.
Nature Communications, Published online: 13 May 2021; doi:10.1038/s41467-021-23066-3 Realizing organic p–n junctions based on ordered crystalline materials with dimensions comparable to the exciton diffusion length of most organic semiconductors remains a challenge. Here, the authors report a strategy to form molecular monolayer crystal-based p–n junctions with thickness below 5 nm.
Nature Communications, Published online: 13 May 2021; doi:10.1038/s41467-021-22992-6 Nanographenes are emerging as a distinctive class of functional materials for electronic and optical devices. Here, the authors develop a facile strategy to recompose helicenes into a variety of chiral nanographenes through an oxidative cyclo-rearrangement reaction.
Nature Communications, Published online: 13 May 2021; doi:10.1038/s41467-021-22983-7 Chiral aliphatic amine and alcohol derivatives are difficult to access due to the challenge to differentiate between spatially and electronically similar alkyl groups. Here the authors show a nickel-catalyzed enantioselective hydroalkylation of acyl enamines and enol esters with alkyl halides to afford enantioenr
Nature Communications, Published online: 13 May 2021; doi:10.1038/s41467-021-23043-w Understanding metal oxide growth mechanisms is essential for the precise design and fabrication of nanostructured oxides. Here, the authors use correlated in situ ETEM, data analysis, and DFT to show an unusual layer-by-layer adatom growth mechanism of 3D epitaxial Cu2O nano-islands, regardless of substrate orien
Nature Communications, Published online: 13 May 2021; doi:10.1038/s41467-021-23100-4 Predicting RNA structure from sequence is challenging due to the relative sparsity of experimentally-determined RNA 3D structures for model training. Here, the authors propose a way to incorporate knowledge on interactions at the atomic and base–base level to refine the prediction of RNA structures.
When the coronavirus pandemic hit last March and my high school shifted to remote learning, I thought it would mean little more than an extended spring break. A year later, I'd spent most of my senior year in my bedroom. My posture deteriorated, my productivity nosedived, and my social life withered.
Higher body mass index (BMI) – an indicator of obesity – in late adolescence is associated with a significantly higher risk of first ischemic stroke in men and women under age 50, regardless of whether they had Type 2 diabetes.Even BMIs in the high-normal range are associated with increased stroke risk in both men and women.
Trekking out to my research sites near North Carolina's Alligator River National Wildlife Refuge , I slog through knee-deep water on a section of trail that is completely submerged. Permanent flooding has become commonplace on this low-lying peninsula, nestled behind North Carolina's Outer Banks. The trees growing in the water are small and stunted. Many are dead. Throughout coastal North Carolin
Listen and subscribe: Apple Podcasts | Spotify | Stitcher | Google Podcasts These days, everyone assumes that this is just a fact of life: Evangelicals are Republicans, and Republicans are evangelicals. The powerful alliance culminated in the 2016 election of Donald Trump, tying the reputation of Christianity in America to the Trump brand—maybe permanently. It wasn't always like this. One man—a p
I en folksaga förklaras hur björnen blev av med sin långa svans. Han blev lurad att stoppa ner svansen i en isvak där den frös fast, och sedan dess har björnar haft en kort stump där bak. Ibland när jag läser vetenskapsnyheter, kanske de jag själv skrivit, känns de som historien om björnens svans. De är aptitligt förpackade små berättelser med en tydlig förklaring – gärna om något som känns lite h
Rush hour will likely return when pandemic lockdowns lift, but a new study suggests that congestion pricing–policies that charge tolls for driving during peak hours–could not only cure traffic jams but also convince motorists it is safe to buy smaller, more efficient cars.
Please post or PM if you feel you are highly qualified for this. I want to go over some sample questions for an assessment interview. It's basically an IQ test – I will also check your answers so don't B.S. if you have never done something like this and done well. I want to know your thought process and all. submitted by /u/cypcuthelp [link] [comments]
BioNyt Videnskabens Verden (www.bionyt.dk) er Danmarks ældste populærvidenskabelige tidsskrift for naturvidenskab. Det er det eneste blad af sin art i Danmark, som er helliget international forskning inden for livsvidenskaberne.
Bladet bringer aktuelle, spændende forskningsnyheder inden for biologi, medicin og andre naturvidenskabelige områder som f.eks. klimaændringer, nanoteknologi, partikelfysik, astronomi, seksualitet, biologiske våben, ecstasy, evolutionsbiologi, kloning, fedme, søvnforskning, muligheden for liv på mars, influenzaepidemier, livets opståen osv.
Artiklerne roses for at gøre vanskeligt stof forståeligt, uden at den videnskabelige holdbarhed tabes.