The Event Horizon Telescope (EHT) collaboration, which produced the first-ever image of a black hole, has today revealed a new view of the massive object at the center of the Messier 87 (M87) galaxy: How it looks in polarized light. This is the first time astronomers have been able to measure polarization, a signature of magnetic fields, this close to the edge of a black hole. The observations are
The Middle East and North Africa Region (MENA) is a climate change hot spot where summers warm much faster than in the rest of the world. Some parts of the region are already among the hottest locations globally. A new international study led by scientists from the Climate and Atmosphere Research Center of the Cyprus Institute and the Max Planck Institute for Chemistry predicts that ignoring the s
An international team of astronomers has detected four new "hot Jupiter" exoplanets as part of the Next Generation Transit Survey (NGTS). The newly found alien worlds are at least 10% larger than Jupiter but less massive than the solar system's biggest planet. The finding is reported in a paper published March 18 on arXiv.org.
A new study shows that if the population were fixed at current levels, the risk of population displacement due to river floods would rise by ~50% for each degree of global warming. However, if population increases are taken into account, the relative global flood displacement risk is significantly higher.
Usually scaled, the skin of fish can also be naked or made up of bony plates that form an armor, sometimes even covered with teeth. But how has this skin evolved over the ages? To answer this question, researchers at the University of Geneva (UNIGE), Switzerland, have reconstructed the evolution of the protective skin structures in fish, going back to the common ancestor of ray-finned fish, more t
Tree-planting can also increase health risks if it focuses too narrowly on small number of species, paper says Outbreaks of infectious diseases are more likely in areas of deforestation and monoculture plantations, according to a study that suggests epidemics are likely to increase as biodiversity declines. Land use change is a significant factor in the emergence of zoonotic viruses such as Covid
Joe Biden is hardly in hiding. Barely a week passes when he doesn't tour a factory or host a meeting in the Oval Office. He gives interviews and takes questions from time to time as he moves through his calendar. What he has yet to do is hold a formal news conference. Donald Trump, Barack Obama, George W. Bush, Bill Clinton—every president since Calvin Coolidge had given a news conference by a co
All your daily interactions with others, big and small, make up your social biome, and the pandemic has severely damaged most of ours. Here's how to reinvigorate it You probably don't know you have a social biome – but according to Jeffrey Hall, professor of communication studies at the University of Kansas, you do. Perhaps you've heard of the gut microbiome – the unique, diverse ecosystem of bac
Screams of 'murderer' and 'liar' in major cities as president makes televised address to the nation on deadliest day yet Coronavirus – latest updates See all our coronavirus coverage Loud protests have erupted across Brazil as the country's Covid-sceptic president, Jair Bolsonaro, struggled to defend his handling of the pandemic and claimed citizens would soon be able to resume their "normal live
First Flight In a matter of weeks, NASA will attempt a historic first by directing a small helicopter to take flight on another planet. Ingenuity, a four-pound helicopter, is tucked under the belly of the agency's Perseverance rover on Mars. And it's getting ready for its big moment. As soon as April 8, Ingenuity will attempt to fly to an altitude of three meters. To celebrate the momentous occas
I was taught to use my head, not my heart. But acknowledging sadness at what is lost can help us safeguard the future Over the course of my career, the climate crisis has changed from something only experts could see – reading clues trapped in frozen air bubbles or statistical patterns in long-term data sets – to something that everyone on Earth is living through. For me, it has gone from being s
Latest updates: Boris Johnson made comments in Zoom call with Tory MPs that successful vaccine programme was thanks to 'greed' and 'capitalism' 'Greed' and 'capitalism' behind vaccine success, Johnson tells MPs 'Vaccine hesitancy' in England and Wales is being overcome, study finds NHS hit by Covid disruption as cancer referrals plunge Action needed to tackle post-Covid 'loneliness emergency', MP
Ukraine suffers record daily deaths for second consecutive day ; Brazil Covid deaths pass 3,000 for first time ; Hong Kong suspends Pfizer vaccinations over defective packaging Greece and Spain to ease restrictions on flights from UK US agency questions AstraZeneca's Covid vaccine trial data UK and EU may share Netherlands vaccine supplies to ease tensions See all our coronavirus coverage 8.48am
Waking up in an alternate reality, Harry Kim, an officer aboard the starship USS Voyager, creates a distortion in the space-time continuum with a beam of polarons. Sounds like science fiction? Well, yes, but only in part. " Star Trek used to love taking the names of real quasiparticles and ascribing magical properties to them ," said Douglas Natelson , a physicist at Rice University in Texas whos
Bitcoin Tesla Tesla has officially started to accept Bitcoin as payment for its vehicles in the US. "You can now buy a Tesla with Bitcoin," CEO Elon Musk announced on Twitter early this morning. "Tesla is using only internal and open source software and operates Bitcoin nodes directly." Indeed, the checkout page to buy a car on the company's site now includes a Bitcoin option. Musk also promised
Scientists recently discovered what seems like an actual "weight loss trick" — at least for mice that they deliberately overfed in the lab. The mice quickly dropped back down to a healthy weight after scientists repeatedly blasted their livers with a focused ultrasound beam , using the same kind of technology common in medical imaging, according to research published in the journal Scientific Rep
Many COVID-19 "long haulers" experience at least four lingering neurological symptoms, such as brain fog, headache and the loss of sense of smell or taste, even if they were never hospitalized for their initial illness.
Americans are experiencing a crime wave unlike anything we've seen this century. After decades of decline, shootings have surged in the past few years. In 2020, gun deaths reached their highest point in U.S. history in the midst of a pandemic. In 2021, although researchers can't yet say anything definite about overall crime, shooting incidents appear to be on the rise in many places. We have also
Florida has experienced a relatively mild winter, which typically translates to more mosquitoes in the summer and more birds on which they can feast. If history repeats itself, it's likely there will be an uptick in West Nile virus cases this year, especially in the outer fringes of the suburbs where much of the nighttime illumination emanates from the skyglow of nearby cities.
R ory Cooper was a top aide to former House Majority Leader Eric Cantor, the up-and-coming Virginia Republican who lost a 2014 House primary. He was also a prominent Never Trumper, openly detailing how awful he found the 45th president. The cause Cooper has committed himself to for the past year, though, is closer to home. He is, as he puts it in his Twitter bio, "Apparently 'Mr. Open The Schools
One afternoon before the pandemic, I went to a decommissioned hospital in West London to meet the Hindi film director Anurag Kashyap on the set of his new Netflix production. The old maternity unit where he was filming had never been entirely cleared out. Members of his crew, recently arrived from Mumbai, were maneuvering around vestigial baby cots and gurneys. As an assistant director shouted ou
When you die, most of the cells in your brain will gradually flicker out. But some, according to a new study, will become extremely active, growing to new sizes for several hours after death. It's morbid to think about your brain becoming more active after you're gone, but the University of Illinois at Chicago (UIC) researchers behind the discovery stressed in a press release that it doesn't mean
Whether it's a new virus or antimicrobial resistance, governments must build on the lessons of 2020 to defeat the next outbreak Wouldn't it be wonderful if we never had to face another pandemic? As we reflect on the past year, the words that come to mind are "never again". Never again should more than 120,000 lives be lost to a contagious virus, a number that would have been unthinkable almost a
A year ago, Siren Saricca, a cocktail server at one of Detroit's casinos, heard that some of her low-income, elderly neighbors were too afraid to go out to get groceries because of the pandemic. Although she was temporarily out of work because of the lockdown, Saricca took her food stamps, bought all the bulk groceries she could afford, and started dropping off bags. At the same time, Kristin Gue
UK Health Security Agency to launch on 1 April to 'plan, prevent and respond' to external threats to health Coronavirus – latest updates See all our coronavirus coverage A new organisation is being set up with the aim of halting future pandemics. The UK Health Security Agency (UKHSA) will launch on 1 April, the health secretary, Matt Hancock, has announced. Continue reading…
An Elsevier journal has retracted a 2020 paper on the heritability of temperament that a prominent critic derided as "transparently ridiculous," after concluding that the peer review process — which it initially defended — was not up to snuff. The journal, Meta Gene, says it has changed that way it considers manuscripts to "ensure that … Continue reading
Nature produces a startling array of patterned materials, from the sensitive ridges on a person's fingertip to a cheetah's camouflaging spots. Although nature's patterns arise spontaneously during development, creating patterns on synthetic materials is more laborious. Now, researchers reporting in ACS Central Science have found an easy way to make patterned materials having complex microstructure
A "plague" of the world's most venomous spiders could swarm Sydney after torrential rain and flooding, the Australian Reptile Park said Wednesday, warning that the deadly arachnids could seek refuge in homes as they escape the deluge.
Our intellectual advantage over the great apes is simply down to a 'molecular switch', tests show It is one of the defining attributes of being human: when compared to our closest primate relatives, we have incredibly large brains. Now scientists have shed light on the reasons for the difference by collecting cells from humans, chimps and gorillas and turning them into lumps of brain in the labor
Matthew Kotchen, an economist at Yale University, has found that fossil fuel companies in the U.S. are getting approximately $62 billion in implicit subsidies every year. In his paper published in Proceedings of the National Academy of Sciences, Kotchen describes how he calculated the costs associated with use of fossil fuels in the U.S. and what it means for those who produce it.
Deforestation, certain types of reforestation and commercial palm plantations correlate with increasing outbreaks of infectious disease, shows a new study in Frontiers in Veterinary Science. This study offers a first global look at how changes in forest cover potentially contribute to vector-borne diseases—such as those carried by mosquitos and ticks—as well as zoonotic diseases, like COVID-19, wh
Women in Alaska's remote areas usually travel long distances to give birth, but the pandemic has made that difficult. Expectant mothers are spending the end of pregnancy alone in hospital-run housing. (Image credit: Cara Lestenkof-Mandregan)
Some of the most popular meat dishes worldwide revolve around the Swedish meatball. In 2015, for example, IKEA alone sold 2.9 million Swedish-style meatballs every single day. To many they are versatile and delicious, but are they sustainable? And how do they compare with plant-based options?
In the quest for habitable planets beyond our own, NASA is studying a mission concept called Pandora, which could eventually help decode the atmospheric mysteries of distant worlds in our galaxy. One of four low-cost astrophysics missions selected for further concept development under NASA's new Pioneers program, Pandora would study approximately 20 stars and exoplanets—planets outside of our sola
Demand for full study protocol of human trials be made public before first participants recruited Coronavirus – latest updates See all our coronavirus coverage Campaigners are demanding that the full protocol of the world's first human challenge trial in which healthy young volunteers are deliberately infected with the virus that causes Covid-19 be published before the first participants are recr
A lawsuit arising from the death of a 22-year-old worker who was helping to install an underground pipe repair known as cured-in-place pipe, or CIPP, was settled for $3 million. But questions remain about the safety of chemicals used — both for workers and for the many communities where CIPP is deployed.
Stretches of land across New South Wales, Australia, have been hit with torrential rain leading to record-breaking floods. The heavy rainfall has caused dams to spill over, rives to burst their banks and thousands of people forced to evacuate their homes. Data from the Copernicus Sentinel-1 mission are being used to map flooded areas to help relief efforts.
Over 50 millennia, at least five major immigration waves have successively populated the Philippines, the most comprehensive survey of genetic variations in the country to date shows. This Uppsala University study, published in the scientific journal PNAS, comprises 2.3 million DNA markers from some 1,000 individuals.
Materials science likes to take nature and the special properties of living beings that could potentially be transferred to materials as a model. A research team has succeeded in endowing materials with a bioinspired property: Wafer-thin stiff nanopaper instantly becomes soft and elastic at the push of a button.
Advances in tip-based microscopy in materials science have allowed imaging at angstrom-scale resolution, although the technique does not provide clear characterization of the structural and chemical heterogeneities of surface species. In a new report now published on Science, Jiayu Xu and a research team in quantum information and quantum physics at the University of Science and Technology of Chin
The microbiome-testing company made misleading claims about its prospects and about its business strategy, which allegedly relied on fooling doctors into ordering unnecessary tests, according to the US government.
Margaret Licata has watched her husband's dementia progress gradually over the past two decades—and now, during the pandemic, all at once. Joe Licata, 79, has frontotemporal dementia with aphasia, which means that he cannot speak or understand language. He began showing symptoms in his late 50s, when Margaret noticed a personality change: Joe would shrug off her attempts at conversation and seeme
A team of researchers from the U.S., Japan, Germany, and the Netherlands reports that honeybees use a series of cascading scenting behaviors to locate their queen. In their paper published in Proceedings of the National Academy of Sciences, the group describes their study of honeybees using observational and machine learning techniques and what they discovered.
UNSW Canberra Space's M2 CubeSat satellites successfully launched with Rocket Lab's "They Go Up So Fast' mission from New Zealand earlier today, representing a significant step forward in Australia's sovereign space capabilities.
During the COVID-19 pandemic, people have grown accustomed to wearing facemasks, but many coverings are fragile and not easily disinfected. Metal foams are durable, and their small pores and large surface areas suggest they could effectively filter out microbes. Now, researchers reporting in ACS' Nano Letters have transformed copper nanowires into metal foams that could be used in facemasks and ai
Throughout the world, societies discriminate against and mistreat members of certain social groups. Young children may express intergroup biases that lead to such outcomes, demonstrating preferences for their own over other groups. A new longitudinal study mimicked a situation in which children might overhear derogatory messages about a new social group. The study revealed that overhearing a stran
A new study is the first to identify how human brains grow much larger, with three times as many neurons, compared with chimpanzee and gorilla brains. The study, led by researchers at the Medical Research Council (MRC) Laboratory of Molecular Biology in Cambridge, UK, identified a key molecular switch that can make ape brain organoids grow more like human organoids, and vice versa.
Data from ESA's Gaia star mapping satellite have revealed tantalizing evidence that the nearest star cluster to the sun is being disrupted by the gravitational influence of a massive but unseen structure in our galaxy.
Today's oceans contain 26-66 million tons of waste, with approximately 94% located on the seafloor. So far, collection efforts have focused mostly on surface waste, with only a few local efforts to gather underwater waste, always using human divers.
Researchers to create a new camera allowing for the imaging of wetland soil activity in real time. This camera gives the classic IRIS (indicator of reduction in soils) technology a big upgrade, allowing researchers to visualize the soil reduction process. This technology opens up new research avenues, and gives a compelling peak at how biochemically active wetland soils really are.
Researchers looked at current frequency of weather conditions in the UK that present 'very high' or 'exceptional' fire danger, and found these conditions could occur hundreds of times more often in some regions by the 2050s and 2080s as temperatures rise and summer rainfall decreases.
Cranfield University research using data from smart meters has found that household water consumption changed significantly after the start of the COVID-19 lockdown, shifting from predominantly higher usage early in the morning to multiple peaks and continued demand throughout the day.
Face masks and gloves designed to protect us are, in fact, dangerous for the animals around us. Scientists from Leiden warn that throughout the world, on land and in the water, animals are ingesting corona waste, or getting entangled in it. The two biologists are asking for everybody's help to better identify the consequences.
Scientists from the U.S. Department of Energy's Ames Laboratory have mapped the dynamics of a catalyst's active site in three dimensions. This achievement gives researchers new insights into how these catalysts work, and potential paths to improve their selectivity and efficiency.
Recently, a research group led by Prof. Wu Kaifeng from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS) found that endothermic charge-transfer-mediated triplet energy transfer (TET) is a new mechanism featuring shallow distance-dependence.
To realize the full potential of solar energy, scientists must find efficient ways of converting light energy into chemical energy. Scientists have developed a chemically modified variant of a photosynthetic enzyme sourced from a bacterium. Their modifications enabled the enzyme to more efficiently harvest the energy available in light, which is an important advancement in the development of clean
För ungefär två år sedan fick vi för första gången se en bild av skuggan av ett supermassivt svart hål, omgivet av en lysande ring. Forskarna har fortsatt att studera detta svarta hål i galaxen M87, och kan nu också urskilja hur ljuset är polariserat.
Per- and polyfluoroalkyl substances (PFAS) are some of the most persistent environmental pollutants, earning them the moniker "forever chemicals." Increasing concern about the adverse health effects of PFAS exposure has researchers seeking novel ways to break down the stubborn pollutants. A cover story in Chemical & Engineering News , the weekly newsmagazine of the American Chemical Society, that
Researchers at Baylor College and Texas Children's Hospital have discovered BASP-1, a novel biomarker of adult human neural stem cells. With this newly discovered biomarker, scientists can better understand the relevance and intricate mechanisms of neurogenesis, which may lead to new future therapeutic approaches to treat and manage neurological and neuropsychiatric disorders associated with dimin
To help environmental agencies battle the toxic threats posed by landfills, researchers at the University of Missouri — in partnership with the USDA Forest Service — have developed a system that ranks the toxins present in a landfill by order of toxicity and quantity, allowing agencies to create more specific and efficient plans to combat leachate.
For premature infants who can't breastfeed on their own, "mother's own milk" (MOM) is by far the best nutrition. There's an urgent need for effective ways to increase the relatively low rates of MOM feeding for preterm infants born to Black and Hispanic mothers. But so far, research has offered little or no specific guidance, concludes an evidence-based review in Advances in Neonatal Care, officia
It appears that the weight of newborn babies decreases if even small amounts of nitrates are present in the drinking water that mothers drink before and during pregnancy. This is shown by a major new register-based study carried out by researchers at the universities in Aarhus and Chicago, USA. They now question whether the threshold value is too high.
Today, Cochrane, a global independent network that gathers and summarizes the best evidence from research to help informed health decision-making, publishes an updated systematic review assessing rapid tests for the detection of SARS-CoV-2 infection (COVID-19).
Living tissue can heal itself from many injuries, but giving similar abilities to artificial systems, such as robots, has been extremely challenging. Now, researchers reporting in ACS' Nano Letters have developed small, swimming robots that can magnetically heal themselves on-the-fly after breaking into two or three pieces. The strategy could someday be used to make hardier devices for environment
A study by researchers from Syracuse University and Pennsylvania State University shows that unmarried young adults who do not have children are mostly likely to misuse opioids, and the growing number of these "disconnected" young adults may also result in continued rises in substance use disorders and overdoses.
New research, published in the Journal of Medical Imaging, evaluates human performance in localization tasks which involve searching a 2D or a 3D image to find a target that is masked by noise. The addition of noise makes the task difficult, similar to reading images in a clinical setting.
Female adult sockeye from the Fraser River are dying at significantly higher rates than their male counterparts on the journey back to their spawning grounds, finds new UBC research. For every male salmon that doesn't make it to their natal stream, at least two, sometimes three female salmon die.
This survey study investigated the frequency and nature of sexist and racial/ethnic microaggressions against female and racial/ethnic-minority surgeons and anesthesiologists and the association with physician burnout.
This comparative effectiveness research study that included a high proportion of non-White individuals assesses whether remdesivir administered alone or with corticosteroids is associated with time to clinical improvement or time to death in patients hospitalized with confirmed COVID-19.
The mouse study showed that genetically engineered myeloid immune cells (GEMys) delivered an anticancer signal (IL-12) to so-called pre-metastatic niches, or sites to which cancer may spread. Treatment with the GEMys shrank tumors and prevented cancer from spreading to other parts of the body in mice.
Nature, Published online: 24 March 2021; doi:10.1038/d41586-021-00746-0 Virtual meetings can suck the life out of a presentation. Pausing, probing and varying your pitch will keep your muted listeners hooked.
The only thing as powerful as our grief is the love we have for those we've lost, says photographer Caroline Catlin. In this meditation on the intersection of life and death, Catlin shares how her personal journey with loss drove her to capture the elusive moments of grace and beauty that exist even in the hardest moments imaginable.
Ophobningen af udskudte operationer under COVID-19-pandemien har skabt lange ventetider for patienter uden særlige rettigheder. Det vil i store træk sige alle dem, der hverken er akutte eller lider af kræft eller COVID-19. Klinikchef fra Aarhus Universitetshospital efterlyser fem konkrete tiltag fra politikerne.
The Plain of Jars consists of over 90 sites containing thousands of jars scattered across Laos. According to new research, these jars were constructed sometime between 1240 and 660 BCE. In 2019, UNESCO named a cluster of 11 regions as a World Heritage Site. The stone jar sites scattered around Laos are considered the most unique and important archaeological finds in all of Southeast Asia. In tota
The process of fabricating materials is complicated, time-consuming and costly. Too much of one material, or too little, can create problems with the product, forcing the design process to begin again. Advancements in the design process are needed to reduce the cost and time it takes to produce materials with targeted properties.
Scientists investigating the genetics of chilli pepper species have discovered a whole host of new chilli hybrids that can be grown by crossing domesticated peppers with their wild cousins. This will allow plant breeders to create new varieties that have better disease resistance and could increase productivity.
Quantum chromodynamics, or QCD, is the theory of the strong interaction between quarks and gluons. Lattice QCD uses supercomputers to explore 'tantalizing hints' of new physics in discrepancies between experimental and theoretical results. Carleton DeTar and Steven Gottlieb, two of the leading contemporary scholars of QCD research, are using the Frontera supercomputer at the Texas Advanced Computi
This new study by the IFCC-IOF Committee for Bone Metabolism investigates harmonization of assays for the bone marker ß-CTX. It shows large within- and between-assay variation for ß-CTX measurement. Until harmonization is achieved, the Committee proposes measuring ß-CTX by the same assay on EDTA plasma, especially for research.
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 . For many of us, this past year was filled with many frantic hours spent trying to understand an evolving crisis. We were, as our contributing writer Tom Nichols puts it , like "fish darting about
"Kan p-piller i kombination med Astra Zenecas vaccin ge blodproppar?" och "skyddar vaccinen mot den sydafrikanska varianten?". Vi har besvarat några av era vanligaste frågor om vaccinationen mot covid-19.
With heavy workloads and high professional and personal demands, medical residents in training – and those in urology residency programs – face a high risk of burnout. At one urology department, a wellness program designed by and for residents produced meaningful reductions in burnout risks, reports a study in Urology Practice®, an Official Journal of the American Urological Association (AUA). The
The unprecedented rainfall from Hurricane Harvey in 2017 brought more than flood damage to southeast Texas. For people living in environmental justice communities such as the Manchester neighborhood near the Houston Ship Channel, heavy rainfall and flooding may have increased risks of exposure to harmful chemicals from nearby industry.
Since the early industrial revolution in the mid-1700s, fossil fuels have acquired an ever-growing footprint in energy production. However, the environmental concerns of fossil fuels use and their inevitable depletion have led to a global shift toward renewable energy sources. These transitions, however, raise questions about the best choice of renewables and the impact of investing in these resou
The more colorful a food, the more nutritious it probably is. For example, purple corn contains compounds associated with a reduced risk of developing diabetes and heart disease. The cobs contain the same compounds but are typically thrown out. Now, researchers report a step-wise biorefinery approach in ACS Sustainable Chemistry & Engineering that uses the whole cob, producing a dye and a possible
Researchers from the University of Missouri School of Medicine and the MU Thompson Center for Autism and Neurodevelopmental Disorders have uncovered possible reasons for male vulnerability in the womb, and they've learned a specific maternal dietary supplement called docosahexanoic acid (DHA) may guard against the impact of maternal stress on unborn males during early development.
Face masks and gloves designed to protect us are, in fact, dangerous for the animals around us. Scientists from Leiden warn that throughout the world, on land and in the water, animals are ingesting corona waste, or getting entangled in it. The two biologists are asking for everybody's help to better identify the consequences.
The Event Horizon Telescope (EHT) — the worldwide collaboration that produced the first image of a black hole in 2019 — has produced a new image showing details of the magnetic fields in the region closest to the supermassive black hole at the core of the galaxy M87. The new work is providing astronomers with important clues about how powerful jets of material can be produced in that region.
The rise in atmospheric carbon dioxide concentration and concurrent climate change has led to yield reductions of grass-rich grassland vegetation in the past century. This observation was made by researchers at the Technical University of Munich (TUM) who, working jointly with colleagues from Rothamsted (U.K.), conducted a study on the world's oldest permanent ecological experiment there.
According to the study, lower levels of several types of cancers were found when the radiation levels were on the higher end of the spectrum rather than on the lower end. Among both men and women, there was a significant decrease in lung, pancreatic, colon and rectal cancers. Among men, there were additional decreases in brain and bladder cancers. There was no decrease in cervix, breast or prostat
A new study from the University of Kent's School of Anthropology and Conservation has found that Oldowan and Acheulean stone tool technologies are likely to be tens of thousands of years older than current evidence suggests.
A hunger strike in Chicago and concerns raised by city and state politicians has slowed the planned move of a metal scrapper to a working-class, predominantly Latino community — Read more on ScientificAmerican.com
During a presidential election debate on Oct. 22, 2020, former President Donald Trump railed against Democratic proposals to retrofit homes. "They want to take buildings down because they want to make bigger windows into smaller windows," he said. "As far as they're concerned, if you had no window, it would be a lovely thing."
Nearly half of the public schools in America are now holding in-person classes, with white children far more likely to be in those classrooms than Black, Hispanic or Asian students, the first federal data on the state of education during the pandemic shows.
Capturing the structure of large molecular complexes with variable shape is an extremely difficult task. Scientists from Würzburg and Montpellier now have been able to do it—thanks to a new approach regarding an important protein machine.
An international team, led by Stefan Raunser, Director at the Max Planck Institute of Molecular Physiology in Dortmund, in collaboration with Mathias Gautel at the King's College in London, has produced the first high-resolution 3D image of the sarcomere, the basic contractile unit of skeletal and heart muscle cells, by using electron cryo-tomography. Electron cryo-tomography capability of imaging
Ideally, a pigment should be resistant to corrosion under light irradiation—especially to UV radiation. It should also retain its white color in the long term. Today, the industry has already achieved all this with zinc sulfide, but the resulting material is not suitable to exploit its other feature of triggering photocatalytic reaction because no charge carriers remain on the particle surface.
A new study shows that when people replace their old couch with a new one that has no added flame retardants, levels of the harmful chemicals in household dust drop significantly. Replacing the foam inside the couch cushions is also just as effective. The findings confirm that choosing healthier furniture without flame retardants can make a big difference in people's—especially children's—everyday
Nature, Published online: 24 March 2021; doi:10.1038/d41586-021-00742-4 Synthetic versions of the super-hard gem stone are driving the development of a class of device with applications in biomedicine and beyond.
Nature, Published online: 24 March 2021; doi:10.1038/d41586-021-00743-3 Diamonds, one of the hardest materials on Earth, are so strong that they can protect fragile quantum states that would otherwise survive only in a vacuum or at ultra-cold temperatures. Engineers are mastering the art of growing diamonds with special properties and detecting their quantum spins — opening up a range of sensing
Skoltech researchers examined the antibiotic compounds that employ a 'Trojan horse' strategy to get into a bacterial cell unrecognized and prevent the synthesis of proteins, ultimately killing the cell.
New research from the University of Kent and Leeds Beckett University has found that feelings of shame and stigmatisation at the idea of contracting Covid-19 are linked to lower compliance of social distancing and the likelihood of reporting infection to authorities and potential contacts in Italy, South Korea and the USA.
Chemists from RUDN University found out that fluorine and fluoroalkyl groups increase the efficiency of catalysts in metathesis reactions that are used in the pharmaceutical industry and polymer chemistry. The team also identified fluorine-containing compounds that can simplify the purification of the catalyst from the reaction product, making it reusable.
In a multicenter study led by the University Hospital and the University Geriatric Medicine FELIX PLATTER Basel, a research group with participation from University of Basel, Inselspital, Bern University Hospital, the University of Bern and other centers, has investigated the equivalence of aspirin to anticoagulation. The study shows that aspirin is not as effective as blood thinning (anticoagulat
A lecture by the pioneer of Effective Field Theories (EFTs), Nobel Laureate Steven Weinberg, has been published in EPJ H. This introduces the concept of EFTs, their historical development and their application to other areas of physics.
A new study from the University of Bergen (UiB) shows that the way young people view their bodies have a great impact on their BMI. The eager to be fatter was associated with getting thinner, and the eager to lose weight was associated with body mass gain as compared with peers who were content with their body.
A year on from when many governments began directing people to work at home wherever possible because of the pandemic, few anticipated that it would become so normalized, or that the shift to productivity would be so rapid and successful. The year that followed has been one of steep and innovative learning around communication technologies, online learning, workload management, and work organizati
Scientists from the Graduate School of Information Science and Technology at The University of Tokyo calculated the efficiency of the sensory network that bacteria use to move towards food and found it to be optimal from an information theory standpoint. This work may lead to a better understanding of bacterial behavior and their sensory networks.
Congress just missed one of its best shots at improving health when the Senate failed to advance a bill that would have raised the minimum wage to US$15 an hour. Study after study has linked higher income to better health.
It wipes out entire communities in a matter of moments, weakens our lungs and even taints our drinking water, yet federal strategy to combat wildfires remains outdated and largely ineffective. The Biden Administration has an opportunity to rewrite the playbook on combatting wildfires, according to Stanford University science and policy experts whose research on a range of related issues points tow
As sunlight filters through a forest canopy, chlorophyll is hard at work capturing the energy of photons. Inspired by nature, researchers at NTNU are working on light-capturing dyes for solar cells to generate electricity.
You might soon have an additional app on your phone: a digital vaccination passport that allows people who have been vaccinated against COVID-19 to travel, enter business establishments and attend events. Not having the app could deny people access.
Heavy elements known as the actinides are important materials for medicine, energy, and national defense. But even though the first actinides were discovered by scientists at Berkeley Lab more than 50 years ago, we still don't know much about their chemical properties because only small amounts of these highly radioactive elements (or isotopes) are produced every year; they're expensive; and their
A research group at the RIKEN Center for Computational Science (R-CCS) has found that glycans—sugar molecules—play an important role in the structural changes that take place when the virus which causes COVID-19 invades human cells. Their discovery, which was based on supercomputer-based simulations, could contribute to the molecular design of drugs for the prevention and treatment of COVID-19. Th
In a store in the center of an unnamed city, humanoid robots are displayed alongside housewares and magazines. They watch the fast-moving world outside the window, anxiously awaiting the arrival of customers who might buy them and take them home. Among them is Klara, a particularly astute robot who loves the sun and wants to learn as much as possible about humans and the world they live in. So be
Land managers know one of the best ways to prevent forest fires is to set fires. Periodic controlled or prescribed burns can reduce the amount of flammable materials lying about on a forest floor, so when wildfires do start, they stay small.
Floating solar farms could help to protect lakes and reservoirs from some of the harms of climate change, a new study suggests. However, given the complex nature of water bodies and differing designs of solar technologies, there could also be detrimental ecosystem impacts of deploying floating solar arrays.
Tobacco smoke-exposed children utilize emergency and urgent care services more often than unexposed children, which contributes to a large toll on the nation's health care system, says research led by the University of Cincinnati.
Researchers from TMDU fabricated a bright fluorescent bone replacement material, based on a precursor to bone tissue that's common in medical practice. The material will be useful in bone repair and dental implants, and facilitate bone regrowth while providing new diagnostic and prognostic functionalities.
Excessive fat accumulation in the liver can lead to serious medical problems, including liver failure. Thus, understanding the distribution of lipids within the liver is a critical step in diagnosing fatty liver diseases. A team of researchers at Tokyo University of Science has now shown that near-infrared hyperspectral imaging permits the visualization of lipid content in mouse liver. This techni
Although many K-12 students have returned to in-person education a year into the COVID-19 pandemic, many spent a better portion this academic season and some still remain online in a learning situation researchers say "challenges implicit assumptions about school and home as separate institutions."
Global warming has increased the number of severe heatwaves that wreak havoc on agriculture, reduce crop yields and threaten food supplies. However, not all plants perish in extreme heat. Some have natural heat tolerance, while others acquire heat tolerance after previous exposure to higher temperatures than normal, similar to how vaccines trigger the immune system with a tiny dose of virus.
Materials science likes to take nature and the special properties of living beings that could potentially be transferred to materials as a model. A research team led by chemist Professor Andreas Walther of Johannes Gutenberg University Mainz (JGU) has succeeded in endowing materials with a bioinspired property: Wafer-thin stiff nanopaper instantly becomes soft and elastic at the push of a button.
Current food classification systems for processed foods lack consistency and consensus often leading to confusion and debate even amongst scientists, a new study in the journal Trends in Food Science & Technology, reports.
In spring 2020, when the first wave of the coronavirus pandemic hit Finland, older adults drastically reduced their out-of-home activities. During the period of government restrictions, physical exercise was the most common reason to leave home.
Usually scaled, the skin of fish can also be naked or made up of bony plates. Researchers (UNIGE) have reconstructed the evolution of the skin structures in fish, going back to the common ancestor, more than 420 million years ago. They found that only fish that had lost their scales were able to develop a bony armour, and that the protective state of their skin influenced their choice of open wate
Researchers from Tokyo Medical and Dental University (TMDU) have found that biomaterials with high molecular mobility can give mechanical cues to liver immune cells to induce an inflammatory response. Different polyrotaxane-coated surface mobilities resulted in varied cell responses. These valuable findings suggest that this technology could possibly be developed into a treatment for modulating im
In a ground-breaking first, researchers have fabricated 3D scaffold implants containing antibiotics at high temperatures. These scaffolds not only support bone regeneration but manage the bone infections that can arise as a result of injury or surgery.
Imbued with special electric, mechanical and other physical properties due to their tiny size, nanofibers are considered leading-edge technology in biomedical engineering, clean energy and water quality control, among others. Now, researchers in Italy and UK have developed an automatic process to assess nanofiber fabrication quality, producing 30% more accurate results than currently used techniqu
"Whatever they think happened is probably pretty far from what really did," the director Michael Ratner recently said in an interview about his new four-part YouTube documentary, Demi Lovato: Dancing With the Devil , whose first two installments are now out . The "they" he refers to is the general public, and the "what" is the July 2018 incident that landed the now-28-year-old singer Demi Lovato
Biologists study the social behavior of fish through their communication, which includes grunts, clicks and coordinated flatulence. Cleaner fish feed on the parasites that live on the skin of many different species of fish, known as clients.
It is no joke that New South Wales residents are in the midst of their fourth "one in 100 year" event since January 2020. Much of the Australian east coast continues to experience heavy rainfall, strong winds and abnormally high tides. All will make the current floods worse.
Nature, Published online: 23 March 2021; doi:10.1038/d41586-021-00800-x The world's only surviving Stone Age wood carving is even older than previously thought. Plus, electronic skin and the fight against fake-paper factories.
Relying on multiple tests, including a tree drawing task, researchers have completed a comprehensive psychological assessment of multiple Japanese Antarctic research teams, determining that most people cope with the harsh, isolated conditions through one of two methods: maintaining a strong internal connection to home or remaining adaptive.
Researchers at Osaka University achieved simultaneous calculation of signal conduction and external radiation phenomena in electric circuits, quantifying electromagnetic field radiation that cannot be anticipated in the circuit designing stage. By eliminating unnecessary electromagnetic field radiation from electric circuits, they aim to reduce noise and power consumption, which will help to reali
Osaka University researchers showed that mixed reality views of proposed buildings or landscapes can be generated rapidly with the help of machine learning. By using a mobile game engine, the future perspective can be rendered in real time. This work may lead to a renewed emphasis on sustainable architecture.
New research uncovers patterns that explain why huge numbers of "by-the-wind sailor" jellyfish wash ashore and strand on beaches around the world, including up and down the US West Coast. While these mass stranding events are hard to miss, researchers actually know very little about how or why they happen. As their name suggests, by-the-wind sailor jellyfish know how to catch a breeze. Using a st
Over the past three years, I've been working on the forthcoming report by the United Nations' Intergovernmental Panel on Climate Change. I'm a climate scientist who contributed to the chapter on global water cycle changes. It's concerning to think some theoretical impacts described in this report may be coming to life—yet again—in Australia.
The uneasy relationship between humans and nature is in constant evolution, but we are now witnessing major ecological and climatic changes that affect all of us. In the current context, we need to develop new concepts and solutions, curb 'business as usual' practices and move toward a world that is more respectful of our environment and ultimately of ourselves.
PLUS. Roskilde Kommune var for to år siden blandt frontløberne på de kommunale chatbots, der hjælper borgere med at finde informationer på hjemmesiden. Nu er næste skridt, at chatbotten skal have en stemme.
Many Australians whose jobs were decimated by the COVID business shutdowns will soon be waking up to new income shocks and the prospect of rental stress. This is because people whose employers can't afford to keep them on will suddenly lose more than A$300 per week when the JobKeeper scheme ends on March 28. Worryingly, this income shock will happen just days before the payment to people on the Jo
The synthesis of formate, an energy carrier, from CO 2 using electricity derived from renewable sources is attracting much attention as a technology for recycling and reusing CO 2 . Here, we focus on reduced graphene oxide (rGO) as a dispersed Sn support that efficiently adsorbs CO 2 . Highly efficient synthesis of formate is observed at the interface between rGO and Sn in the electrochemical redu
Think of it as a testament to a honeybee's love for its queen: Bees build what looks like a telecommunications network to pass messages, in the form of pheromones, from their queen to other members of a colony.
The largest flightless bird ever to live weighed in up to 600kg and had a whopping head about half a metre long – but its brain was squeezed for space. Dromornis stirtoni, the largest of the 'mihirungs' (an Aboriginal word for 'giant bird'), stood up to 3m and had a cranium wider and higher than it was long due to a powerful big beak, leading Australian palaeontologists to look inside its brain sp
Austin Green and his colleagues are sharing what they've learned about the importance of trail cameras for wildlife conservation and management. As the COVID-19 pandemic has shown, they write, automatic camera traps are good tools for a wide range of environments and research questions.
Covid 19 has shaken the world, and one of the fields it's shaken most is the workforce. It forced many to work at home, but as I see in the news stories of working at home and how people actually like it, I'm forced to wonder, is at home work the furture? submitted by /u/I_bad_at_MATH_448 [link] [comments]
I love thinking about the future. But cannot help thinking about how we truly unlock humanity's true potential. How can we eradicate poverty or diseases? Build mega space stations, deal with climate change, end wars, make sure that every human lives a meaningful life. What if instead of spending hundreds of billions or trillions on weapons and conflicts. We spend them on eradicating poverty addin
It's a slow motion disaster that may potentially wipe out humanity. The chemicals to blame for this crisis are found in everything from plastic containers and food wrapping, to waterproof clothes and fragrances in cleaning products, to soaps and shampoos, to electronics and carpeting. Some of them, called PFAS, are known as "forever chemicals", because they don't breakdown in the environment or t
Imagine that you need to travel, but you don't have a car and you're dead broke. What do you do? Hitchhiking, of course! Leiden biologist found that certain bacteria use this very same tactic: their spores hop on motile bacteria and use them as a taxi, ensuring they reach the right environment to flourish.
Early into the coronavirus pandemic as anti-Asian violence began to rise in the United States and in Europe, political scientist Guy Grossman, Penn Development Research Initiative postdoctoral fellow Stephanie Zonszein, and Gemma Dipoppa, who earned her Ph.D. at Penn and is now a postdoc at Stanford University, wanted to look at what triggered these waves of hate crimes. Was it fear of infection,
Researchers from the Neural Tissue Engineering group at Keele University (NTEK) have reported promising findings in two new studies looking at methods to improve transplantation of stem cells for injury repair in the brain or spinal cord.
India's ambitious target of 450 gigawatts of renewable energy capacity by 2030 could go even further, say three economists. For comparison, the country's total energy generation capacity today is about 380 gigawatts, out of which 90 gigawatts are of renewable energy, not including large hydropower stations. How this plan shapes up will dictate how many fossil-fuel powerplants they can avoid build
A decline in drinking has led to a decline in casual sex among both young men and women, research finds. The study also links the decline in casual sex with playing video games and living at home with parents—but only for men. The study, published in the journal Socius , finds that between 2007 and 2017, the percentage of 18-to 23-year-old men who had casual sex in the past month dropped from 38%
Ever since the era of Darwin, adaptive evolution has been a cornerstone of evolutionary biology. One essential related question is do animals adapt similarly to a shared environments? Indeed, scientists have long ago observed that animals usually evolve similar phenotypes in similar environments, and thus formulated classic ecogeographical rules, as e.g., "Bergmann's Law," "Allen's Law," and "Glog
Two-dimensional (2D) perovskites are multiple quantum well (QW) structures formed by alternating inorganic and organic layers. They are promising in applications of solar cells, LEDs, and photodetectors.
Nature, Published online: 24 March 2021; doi:10.1038/d41586-021-00785-7 Results confirming the vaccine's strong protection against COVID-19 were welcomed following last week's pause in rollouts — but fresh questions have now emerged about the data.
Den populære blodtryksmedicin Centyl har de seneste måneder været stort set umulig at opdrive på det danske marked. Som konsekvens er alle vanddrivende midler af typen thiazid havnet i restordre én efter én. Til stor frustration for læger i almen praksis.
NASA's Perseverance rover touched down on Mars in February, carrying with it a suite of sensors and experiments that could help identify the remains of ancient life on the red planet. As if that wasn't enough, Perseverance also has a flying drone. The Ingenuity helicopter is attached to the underside of the rover, but it won't be for long. NASA just took the first step toward getting it airborne.
Nature, Published online: 24 March 2021; doi:10.1038/d41586-021-00770-0 The literature has failed to acknowledge many female researchers, especially those from marginalized backgrounds. But a new generation of historians is changing the narrative.
Being persistently lonely during midlife (ages 45-64) appears to make people more likely to develop dementia and Alzheimer's Disease (AD) later in life. However, people who recover from loneliness, appear to be less likely to suffer from dementia, compared to people who have never felt lonely.
A new study suggests that Sargramostim, a medication often used to boost white blood cells after cancer treatments, is also effective in treating and improving memory in people with mild-to-moderate Alzheimer's disease. The University of Colorado Anschutz Medical Campus presents evidence that Sargramostim has both disease-modifying and cognition-enhancing activities in Alzheimer's disease patients
Unga "ska" vilja flytta till en storstad; den som väljer att stanna kvar kan verka passiv och utan ambitioner. Men unga vuxna ser också fördelar med småstaden, som boendet och de sociala relationerna, visar forskning. Kraven på arbetsmarknaden har ökat och arbeten som tidigare fungerade som insteg på arbetsmarknaden har blivit färre. Denna utveckling får konsekvenser för unga i mindre orter, där
Eighty percent of jobs are communicated to people informally and these communications are often riddled with gender bias, providing a female (versus male) candidate with a less positive description of a leadership position, especially when the decision maker is more conservative. These are the findings of a new study by Ekaterina Netchaeva, of Bocconi University's Department of Management and Tech
A research team from Virginia Polytechnic Institute and State University (Virginia Tech), George Washington University and ITMO University has presented new data for studying the behavior and physiology of two types of malaria mosquitoes. This information will help find regions of the genome that are responsible for connection with the pathogen and for their feeding behavior. Research was publishe
President Joe Biden is eager to claim credit. He wants recognition for the decline in coronavirus-infection rates that his vaccination push seems to be speeding along, and for the economic recovery that he expects his $1.9 trillion spending package to underwrite. This month, Biden gave his first prime-time Oval Office address to trumpet the former, and the White House is rolling out a public-rela
Cellcykeln, alltså den process där celler delar sig, är viktig för alla levande organismer (se ruta). Det väckte därför uppmärksamhet när Emma Lundberg, professor i cellbiologisk proteomik vid Kungliga Tekniska Högskolan, KTH, i Stockholm, och hennes medarbetare i slutet av februari kunde presentera sina nya resultat.
Disposable masks, gloves and other types of personal protective equipment are safeguarding untold lives during the coronavirus pandemic. They're also creating a worldwide pollution problem, littering streets and sending an influx of harmful plastic and other waste into landfills, sewage systems and oceans.
Most people rely on family members to help them learn how to open a bank account, find a job or create a budget, but that's often not an option for youth in foster care, according to a recent study in Child & Family Social Work.
Researchers from University of Minnesota, New York University, University of Pennsylvania, BI Norwegian Business School, University of Michigan, National Bureau of Economic Research, and University of North Carolina published a new paper in the Journal of Marketing that examines how advances in machine learning (ML) and blockchain can address inherent frictions in omnichannel marketing and raises
Om 20 år ska all el i Sverige komma från förnybara källor som vind, sol och vatten. Men vad gör man när det inte blåser, solen gömmer sig bakom molnen och en köldknäpp ökar efterfrågan på el? I slutet av 2016 publicerade Jon Olauson och tre kollegor vid Uppsala universitet en artikel i tidskriften Nature Energy. Artikelns utgångspunkt var ett Sverige som helt förlitar sig på förnybara energikällo
Forskning viser, at forhøjet blodtryk kan gøre skade på blodkarrene og give åreforkalkning uden involvering fra signalstoffer. Mere specifik viden om forhøjet blodtryk kan lede til bedre behandling i fremtiden, siger forsker og læge bag studiet.
Research shows that children prefer to befriend, listen to, and imitate people who speak similarly to them. A new meta-analysis including studies with monolingual as well as bilingual children helps to shed light on the range of factors that contribute to the development of linguistic-based biases in early childhood.
Nature, Published online: 24 March 2021; doi:10.1038/d41586-021-00773-x Scientists capture the movement of electrons in a xenon atom, a phenomenon that lasts for a fraction of one-billionth of a second.
The first personalised advice on the most effective exercise to lower blood pressure is published today in the European Journal of Preventive Cardiology, a journal of the European Society of Cardiology (ESC).1 The ESC consensus document recommends specific activities according to an individual's current blood pressure level.
Study shows that antibody longevity varies widely from 40 days to as long as several decades and not everyone who has recovered from COVID-19 is immune from reinfection. Individuals with low levels of neutralising antibodies may still be protected if they have robust T-cell immunity. Blood tests and a computer algorithm suggest annual vaccinations might be needed for some individuals to prevent fu
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.