In the first national study of its size, researchers at UC San Diego have found that nurses are at higher risk of suicide than the general population. Results were published in the February edition of WORLDviews on Evidence Based-Nursing.
Bulky globular proteins require specialized transport systems for insertion into membranes. Ludwig-Maximilians-Universitaet (LMU) in Munich researchers have determined the structure of such a system for the first time, and propose that it exploits the principle of the airlock.
Researchers at Johns Hopkins Bloomberg School of Public Health have discovered a fundamental mechanism that regulates gene activity in cells. The newly discovered mechanism targets RNA, or ribonucleic acid, a close cousin of DNA that plays an important role in cellular activity.
Researchers from the Center for Weight, Eating and Lifestyle Science (WELL Center) at Drexel University found exercise to be a protective factor in a study where participants in a weight loss program, who were following a reduced-calorie diet, engaged in exercise in their real-world environments.
A new study from the University of Delaware found high concentrations of microplastics in so-called convergence zones, the areas where the fresher water from the Delaware River meets the saltier water of the Atlantic Ocean and the surface currents converge. They found the distribution of plastics also depends on the force of the winds.
English proficiency shouldn't be a barrier to health care. But a patient who needs language services would have to navigate through one to four web pages in English to find information on such services at most hospitals in Washington, according to new WSU research.
Darwin's finches are among the most celebrated examples of adaptive radiation in the evolution of modern vertebrates and now a new study, led by scientists from the University of Bristol, has provided fresh insights into their rapid development and evolutionary success.
Using an experimental piglet model, researchers defined the safest laparoscopic technique for removing the ovary in young girls that also results in the best quality ovarian tissue for fertility preservation.
Women with gestational diabetes who have elevated blood sugar levels before eating are at higher risk for complications than those whose blood sugar is only elevated after meals — even when their diabetes is treated, according to a new study from the University of Alberta.
Oil poses a considerable danger to aquatic life. Researchers at the Universities of Bonn and Aachen and the Heimbach-GmbH have developed a new technology for the removal of such contaminations: Textiles with special surface properties passively skim off the oil and move it into a floating container. The scientists used surfaces from the plant kingdom as a model. The study has now been published in
Aphids, small sap-sucking insects, are virus carriers responsible for significant economic losses in many crops worldwide. Many aphids form symbiotic and mutualistic relationships with viruses, an aspect of plant disease that has not been well explored.
Aphids, small sap-sucking insects, are virus carriers responsible for significant economic losses in many crops worldwide. Many aphids form symbiotic and mutualistic relationships with viruses, an aspect of plant disease that has not been well explored.
An international research group with Dr. Longjian Xie from the Bavarian Research Institute of Experimental Geochemistry & Geophysics (BGI) of the University of Bayreuth has succeeded for the first time in measuring the viscosity that molten solids exhibit under the pressure and temperature conditions found in the lower earth mantle. The data obtained support the assumption that a bridgmanite-enric
Five years ago, a team of computer scientists, biomedical researchers, and bioinformaticians set out to bring the power of collective knowledge to genomic research. Their new publication in PLOS Biology shares the culmination of that effort, an analytical platform that guides researchers through the process of interpreting complex genomic datasets.
Five years ago, a team of computer scientists, biomedical researchers, and bioinformaticians set out to bring the power of collective knowledge to genomic research. Their new publication in PLOS Biology shares the culmination of that effort, an analytical platform that guides researchers through the process of interpreting complex genomic datasets.
Nature, Published online: 03 February 2020; doi:10.1038/d41586-020-00288-x Latest budget includes more than a billion dollars in funding for quantum computing, communications and cryptography.
Researchers from the Max Planck Institute for Terrestrial Microbiology in Marburg have described a previously unrecognized mechanism of bacterial transcriptional regulation that is obviously widespread in bacteria. In the future, their findings could also help fight antibiotic resistance.
Researchers from the Max Planck Institute for Terrestrial Microbiology in Marburg have described a previously unrecognized mechanism of bacterial transcriptional regulation that is obviously widespread in bacteria. In the future, their findings could also help fight antibiotic resistance.
Nature, Published online: 03 February 2020; doi:10.1038/d41586-020-00297-w Create your dream doctoral project, tech tools to help make labs more open and inclusive, and the virologists poised to work with live samples of the coronavirus.
Imagine a Democratic nominee who's a socialist and not even a member of the party. Now imagine a Democratic nominee who's a billionaire businessman who spent his way into contention. It might be time to start preparing for mayhem. Bernie Sanders is well positioned to sweep Iowa, New Hampshire, and Nevada—"a domino effect," Representative Ilhan Omar of Minnesota predicted at a campaign event for t
The promise of flickering light to treat Alzheimer's takes another step forward in this new study, which reveals stark biochemical mechanisms: 40 Hertz stimulus triggers a marked release of signaling chemicals.
Oil poses a considerable danger to aquatic life. Researchers at the Universities of Bonn and Aachen and the Heimbach-GmbH have developed a new technology for the removal of such contaminations: Textiles with special surface properties passively skim off the oil and move it into a floating container. The scientists used surfaces from the plant kingdom as a model. The study has now been published in
New research led by Miguel Modestino, professor of chemical and biomolecular engineering at NYU Tandon, detailed in the report 'Highly Permeable Perfluorinated Sulfonic Acid Ionomers for Improved Electrochemical Devices: Insights into Structure — Property Relationships,' published in the Journal of the American Chemical Society, details a hybrid material that could boost power of hydrogen fuel ce
An international research group with Dr. Longjian Xie from the Bavarian Research Institute of Experimental Geochemistry & Geophysics (BGI) of the University of Bayreuth has succeeded for the first time in measuring the viscosity that molten solids exhibit under the pressure and temperature conditions found in the lower earth mantle. The data obtained support the assumption that a bridgmanite-enric
The benefits of yoga have been widely documented by scientific research, but previously it was not clear as to how yoga exerts its physiologic effect. Now a new study from Boston University School of Medicine (BUSM) proposes that yoga can increase levels of Gamma-amino butyric acid (GABA) in the short-term and completing one yoga class per week may maintain elevated GABA that could mitigate depres
Homicide is a leading cause of death among pregnant and postpartum women in Louisiana, according to an analysis of birth and death records from 2016 and 2017. The study, appearing as a research letter in JAMA Pediatrics, was funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), part of the National Institutes of Health.
Aphids, small sap-sucking insects, are virus carriers responsible for significant economic losses in many crops worldwide. Many aphids form symbiotic and mutualistic relationships with viruses, an aspect of plant disease that has not been well explored.
Building on over two decades of research, Mars and the University of California Davis have developed a new methodology to measure cocoa flavanols and procyanidins that is more accurate and more reliable than previous analytical approaches. The method, published in Food & Function, has been developed in partnership with Waters, the world's leading specialty measurement company and chromatography pi
Worldwide declines in insect populations have garnered significant attention of late. However, many species are understudied, including firefly beetles, whose charismatic bioluminescent displays elevate their cultural and economic importance. Reporting the results of a recent survey in BioScience, Sara M. Lewis of Tufts University and her colleagues present a broad overview of the threats facing t
Habitat loss, pesticide use and, surprisingly, artificial light are the three most serious threats endangering fireflies across the globe, raising the specter of extinction for certain species whose features render them more vulnerable to specific threats. Impacts range from loss of biodiversity to ecotourism. The authors, compiling the knowledge of experts around the globe, will use the study to
A new analysis reveals evidence of presolar grains in part of a meteorite where scientists don't expect to find them. Researchers sometimes find presolar grains—tiny bits of solid interstellar material formed before the sun was born—in primitive meteorites. "What is surprising is the fact that presolar grains are present," says lead author Olga Pravdivtseva, research associate professor of physic
Scientists discovered that glioma, a lethal form of brain cancer, alters the activity of neighboring neurons, accelerating a vicious cycle that drives tumor-associated epilepsy and tumor progression.
A new book titled The Craft of Science Writing explains how to help readers understand the science that underlies so many of the issues that touch our lives. — Read more on ScientificAmerican.com
Agent of Chaos Google Maps makes it easy to spot heavy or slow-moving traffic on busy roadways by highlighting them in orange or red. But German artist Simon Weckert creating his own personal traffic jams on the service by loading 99 smartphones into a small cart and lugging them down a street. Simulating Traffic Weckert's "Google Maps Hack" is straightforward. His red, phone-laden cart essential
A team from TU Wien and the University of Heidelberg has developed methods with which these models can be directly obtained from experimental measurements. Instead of comparing the experimental results to theoretical model predictions, it is, in a certain sense, possible to measure the theory itself.
Five years ago, a team of computer scientists, biomedical researchers, and bioinformaticians set out to bring the power of collective knowledge to genomic research. Their newest publication shares the culmination of that effort, an analytical platform that guides researchers through the process of interpreting complex genomic datasets.
A review of recent clinical trials paints a sobering picture of the usefulness of first-line psychotherapies in treating active duty military personnel and veterans with Post-Traumatic Stress Disorder (PTSD).
Using results of a survey of more than 2,700 self-reported users of the herbal supplement kratom, sold online and in smoke shops around the U.S., Johns Hopkins Medicine researchers conclude that the psychoactive compound somewhat similar to opioids likely has a lower rate of harm than prescription opioids for treating pain, anxiety, depression and addiction.
People with autism spectrum disorder (ASD) appear to suffer malfunctions in a cell that produces a special coating around nerve fibers that facilitates efficient electrical communication across the brain. And correcting it could offer a potential new avenue for treatment, according to a new study published today in the journal Nature Neuroscience from scientists at the Lieber Institute for Brain D
An estimated 1.6 million children and teens in the United States are allergic to peanuts. Exposure to even a tiny fragment of a single peanut can be enough to trigger a reaction, and every year, one in five minors with peanut allergies end up in the emergency room due to accidental exposure. In some cases, that exposure is fatal . Thankfully, a new defense against peanut allergies has emerged. On
Habitat loss, pesticide use and, surprisingly, artificial light are the three most serious threats endangering fireflies across the globe, raising the spectre of extinction for certain species and related impacts on biodiversity and ecotourism, according to a Tufts University-led team of biologists associated with the International Union for the Conservation of Nature.
Despite being considered as one of the best studied spiders in the Palearctic, the orb-weaver spiders (family Araneidae) remain poorly known in the central parts of the ecozone. To bridge the knowledge gaps, an international research team of researchers took to the Caucasus, Middle East and Central Asia to study two of those genera: Araniella and Neoscona.
A Louisiana island that provides a crucial nesting ground for pelicans and other sea birds is being restored to nearly its former size after decades of coastal erosion and the devastating blow of an offshore oil spill 10 years ago.
Habitat loss, pesticide use and, surprisingly, artificial light are the three most serious threats endangering fireflies across the globe, raising the spectre of extinction for certain species and related impacts on biodiversity and ecotourism, according to a Tufts University-led team of biologists associated with the International Union for the Conservation of Nature.
Despite being considered as one of the best studied spiders in the Palearctic, the orb-weaver spiders (family Araneidae) remain poorly known in the central parts of the ecozone. To bridge the knowledge gaps, an international research team of researchers took to the Caucasus, Middle East and Central Asia to study two of those genera: Araniella and Neoscona.
A new book titled The Craft of Science Writing explains how to help readers understand the science that underlies so many of the issues that touch our lives. — Read more on ScientificAmerican.com
Under The Hood A remake of a 2008 NASA animation reveals what the world would look in a "Mad Max" scenario in which all the water on Earth evaporated. The video , made by former NASA planetary scientist James O'Donoghue, gradually reveals a vast landscape of hidden mountains and other features — many of which have yet to be properly explored . "I like how this animation reveals that the ocean flo
A new study from Harvard University and the Field Museum of Natural History sheds light on how and when changes in the spine happened in mammal evolution. The research reveals how a combination of developmental changes and adaptive pressures in the spines of synapsids, the extinct forerunners of mammals, laid the groundwork for the diversity of backbones seen in mammals today.
A new study from Harvard University and the Field Museum of Natural History sheds light on how and when changes in the spine happened in mammal evolution. The research reveals how a combination of developmental changes and adaptive pressures in the spines of synapsids, the extinct forerunners of mammals, laid the groundwork for the diversity of backbones seen in mammals today.
Recently discovered ripples of spacetime called gravitational waves could contain evidence to prove the theory that life survived the Big Bang because of a phase transition that allowed neutrino particles to reshuffle matter and anti-matter, explains a new study by an international team of researchers.
Researchers from Tokyo Medical and Dental University develop a novel gas imaging system to simultaneously visualize and measure gases that are released through the skin in real-time. Gases emitted from the human body have been used since ancient Greek times to diagnose the sick; the same principle with a modern, technological makeover could now become a simple tool to identify metabolic disorders,
Vast amounts of valuable energy, agricultural nutrients, and water could potentially be recovered from the world's fast-rising volume of municipal wastewater, according to a new study by UN University's Canadian-based Institute for Water, Environment and Health (UNU-INWEH).
A new meta-analysis at Drexel University shows that house plants are not effective for purifying the air of toxins. A 1989 NASA report that claimed indoor plants are purifying was not conducted in realistic living conditions. Indoor plants have positive effects on our mental health, just not in regards to air quality. There are a lot of strange ideas floating around, especially when it comes to p
Nature, Published online: 03 February 2020; doi:10.1038/d41586-020-00243-w Climate models published between 1970 and 2007 provided accurate forecasts of subsequently observed global surface warming. This finding shows the value of using global observations to vet climate models as the planet warms.
Considered as one of the best studied spiders, the orb-weavers remain poorly known in the central parts of the Palearctic ecozone. Hence, an international research team took to the Caucasus, Middle East and Central Asia. Their article in the open-access peer-reviewed journal ZooKeys documents three new to science species, where one is named after the Indo-Iranian god of light Mithra. Another carri
According to the hypothesis, axionic dark matter, provoking structural rearrangement in compact stars with a strong magnetic field, can protect them from a catastrophic loss of magnetic energy, but at the same time allows such objects to rotate abnormally fast.
Black history taught in US schools is often watered-down, riddled with inaccuracies and stripped of its context and rich, full-bodied historical figures. Equipped with the real story of Rosa Parks, professor David Ikard highlights how making the realities of race more benign and digestible harms us all — and emphasizes the power and importance of historical accuracy.
Is this cat gloating? Showing content? Averting its eyes in disgust? Who can tell? (Tkachuk Oksana/Deposit /) Lauren Dawson is a postdoctoral fellow of Animal Biosciences at the University of Guelph. This story originally featured on The Conversation . Cats are popular pets: There are an estimated 200 million pet cats worldwide , which more than the number of pet dogs . Cats live in about 38 perc
Collaborative research groups discovered a unique supramolecular structure composed of hyperthermophilic archaeal proteins. Their integrative biophysical data show that the two functionally unannotated archaeal proteins are co-assembled into an ancient Greek tholos-like architecture having a central cavity, which can potentially accommodate other proteins. Their findings not only provide insight i
Researchers from Sechenov University and their colleagues summarised the results of various studies devoted to the process that can be described as bacterial cannibalism. Why some microorganisms start to kill their relatives of the same species and whether we can use this phenomenon to combat infectious diseases is explained in the article published in Antibiotics.
CAR T-cell therapy is a highly promising treatment strategy for tumors, but is associated with life-threatening side effects. Researchers at EPFL, UNIL and CHUV have developed a new way to "switch off" the therapy when a cancer patient's life is in danger, paving the way for safer immunotherapy approaches to target solid tumors.
When choosing between multiple alternatives, people usually focus their attention on the two most promising options. The quicker we do that, the faster we make the decision. Psychologists from the University of Basel have reported these findings in the scientific journal Nature Human Behaviour.
Researchers compared modern and ancient animals to explore how mammalian vertebrae have evolved into sophisticated physical structures that can carry out multiple functions. The comparison between complex spine of cats, the more uniform spine of lizard, and CT scans of synapsid fossils showed that the evolution of functions (e.g. bending, twisting) is driven by both selective pressures/behavior an
In a new study, researchers identify possible brain and social factors underlying racial and ethnic disparities in pain. The researchers found that African American participants reported greater pain in response to a controlled pain stimulation than Hispanic or non-Hispanic white participants did.
The invention of vaccines for disease prevention is often cited as one of the miracles of modern medicine. New research from Simon Fraser University suggests that tailoring vaccines based on geography and other factors could substantially reduce overall rates of bacterial disease.
The profound threat of future climate change to biodiversity demands that scientists seek ever more effective ways to identify the most vulnerable species, communities, and ecosystems.In a new study, published in Nature Climate Change, an international team of scientists has shown that the most biodiverse regions on Earth are among the most vulnerable to future climate change.
A new study led by WRAIR scientists has shown for the first time that a single dose of an experimental Zika vaccine in a dengue-experienced individual can boost pre-existing flavivirus immunity and elicit protective cross-neutralizing antibody responses against both Zika and dengue viruses. Findings were published today in Nature Medicine. Three Phase 1 human clinical trials have shown ZPIV to be
New research by engineers at MIT and elsewhere could lead to batteries that can pack more power per pound and last longer, based on the long-sought goal of using pure lithium metal as one of the battery's two electrodes, the anode.
Mussels in the deep sea can only survive there thanks to symbiotic bacteria living inside of them. Researchers at the Max Planck Institute for Marine Microbiology in Bremen have now succeeded for the first time in simultaneously identifying individual bacteria in the symbiosis and measuring which metabolites they convert. This enables a new understanding of many biological processes. The researche
Studies have demonstrated that immunotherapy combining two anti-HIV antibodies can suppress HIV, similar to antiretroviral therapy (ART). Now an international team of researchers from the University of Montreal Hospital Research Centre (CRCHUM), the Rockefeller University (United States) and the University of Cologne (Germany) has shown that the use of these antibodies during ART interruption has
New research has found that rates of disease caused by the bacterium Streptococcus pneumoniae could be substantially reduced by changing our approach to vaccination. Researchers from the Wellcome Sanger Institute, Simon Fraser University in Canada and Imperial College London combined genomic data, models of bacterial evolution and predictive modelling to identify how vaccines could be optimised fo
By figuring out how a common virus hides from the immune system, scientists have identified a potential vaccine to prevent sometimes deadly respiratory infections in humans.
The Greenland Ice Sheet is melting faster today than it did only a few years ago. The reason: it's not just melting on the surface — but underwater, too.
Researchers calculated the average cost of recommended initial HIV antiretroviral therapy (ART) regimens in the US from 2012 to 2018 and analyzed how this cost has changed over the years. High ART costs are one of the factors that can lead to poor HIV treatment and outcomes in the US.
Researchers examined how often homicide was the cause of death among women in Louisiana who were pregnant or up to one year postpartum compared with other causes.
Data for nearly 30,000 adults from six study groups in the US were used to investigate associations between eating processed meat, unprocessed red meat, poultry or fish and the risk of cardiovascular disease and death from any cause.
A large study links red and processed meat with higher risk of heart disease and death. Eating two servings of red meat, processed meat or poultry — but not fish — per week was linked to a 3 to 7% higher risk of cardiovascular disease. Eating two servings of red meat or processed meat — but not poultry or fish — per week was associated with a 3% higher risk of all causes of death.
Decision described as a 'significant setback' by International Aids Society The latest trial of a vaccine against HIV has been halted because interim results show it is not working, the National Institutes of Health in the United States has announced. The end of the trial taking place in South Africa is a blow to the vaccine field and to Aids experts and advocates. As early as the mid-1980s, the
East Africa is being ravaged by vast swarms of desert locusts, which have taken advantage of ideal breeding conditions created by unusually heavy rainstorms
By figuring out how a common virus hides from the immune system, scientists have identified a potential vaccine to prevent sometimes deadly respiratory infections in humans.
Mussels in the deep sea can only survive there thanks to symbiotic bacteria living inside of them. Researchers at the Max Planck Institute for Marine Microbiology in Bremen have now succeeded for the first time in simultaneously identifying individual bacteria in the symbiosis and measuring which metabolites they convert. This enables a new understanding of many biological processes. The researche
New research by engineers at MIT and elsewhere could lead to batteries that can pack more power per pound and last longer, based on the long-sought goal of using pure lithium metal as one of the battery's two electrodes, the anode.
By figuring out how a common virus hides from the immune system, scientists have identified a potential vaccine to prevent sometimes deadly respiratory infections in humans.
Mussels in the deep sea can only survive there thanks to symbiotic bacteria living inside of them. Researchers at the Max Planck Institute for Marine Microbiology in Bremen have now succeeded for the first time in simultaneously identifying individual bacteria in the symbiosis and measuring which metabolites they convert. This enables a new understanding of many biological processes. The researche
The Greenland Ice Sheet is melting faster today than it did only a few years ago. The reason: it's not just melting on the surface—but underwater, too. AWI researchers have now found an explanation for the intensive melting on the ice's underside, and published their findings in the journal Nature Geoscience.
Moon Trip This year's Sundance Film Festival in Utah allowed festival goers to experience something wild: virtual reality, but underwater. The "Spaced Out" experience dreamed up by multidisciplinary artist Pierre "Pyaré" Friquet and collaborators allows participants to be virtually transported to the Moon through a combination of abstract imagery and archival footage from the Apollo 11 mission. F
On the first full day of the impeachment proceedings, which tipped into the early-morning hours of the next, Chief Justice John Roberts admonished the parties to display more civility. He disliked the bandying about of treacherous , lies , and cover-up . It was not the sort of argument appropriately made to the world's "greatest deliberative body." "Remember where you are," Roberts concluded. The
The internet's cast of characters always has room for one more. The newest is Doomer Girl, a quickly sketched cartoon woman with black hair, black clothes, and sad eyes ringed with red makeup. Visually, there's not much to Doomer Girl beyond that. She has a lightly sad expression and a permanent blush that give the impression she is bummed, but not dysfunctionally so. She's aspirational-gloomy, l
A plant-based diet may be key to lowering your risk of heart disease, researchers report. In a new study, researchers determined that diets with reduced sulfur amino acids—which occur in protein-rich foods, such as meats, dairy, nuts, and soy—were associated with a decreased risk for cardiovascular disease. The team also found that the average American consumes almost two and a half times more su
Genom att ge tallar skador som liknar dem som uppstår vid brand kan man öka tillgången på senvuxen, kådimpregnerad tallved i ljusa, varma lägen – vilket är en bristvara i skogslandskapet. Kan lågproduktiv tallskog användas för att stärka och bevara den biologiska mångfalden? Det hoppas Mats Dynesius, forskare från SLU. – Tanken med vårt forskningsprojekt är att undersöka om vi i lågproduktiva sk
A recent study by the University of Kent has called for an increase in scientific surveys and collection of specimens to confirm the extinction of ultra-rare species.
Sixty-six million years ago, in the emerged lands of Laurasia—now the northern hemisphere—a primitive land tortoise, measuring about 60 cm, managed to survive the event that killed the dinosaurs. It was the only one to do so in this area of the world, according to a Spanish palaeontologist who has analysed its peculiar fossils, found in France.
A 52-year database of the distribution and movements of 35 Atlantic shark species revealed new information on some of the least known species. It also uncovered a few surprises about where sharks go and how long they live.
Fundamental research in condensed matter physics has driven tremendous advances in modern electronic capabilities. Transistors, optical fiber, LEDs, magnetic storage media, plasma displays, semi-conductors, superconductors—the list of technologies born of fundamental research in condensed matter physics is staggering. Scientists working in this field continue to explore and discover surprising nov
Maybe words such as ethyl butanoate and octalactone sound unfamiliar to most people who drink wine. However, these substances are some of the ones that give this popular drink its own scent. A recent piece of research published by the University of Cordoba and the Gheorghe Asachi Technical University in Romania identified a total of 17 key compounds in the aroma of red wine, made from a red grape
A recent study by the University of Kent has called for an increase in scientific surveys and collection of specimens to confirm the extinction of ultra-rare species.
A 52-year database of the distribution and movements of 35 Atlantic shark species revealed new information on some of the least known species. It also uncovered a few surprises about where sharks go and how long they live.
A marker for heart disease risk considerably worsens as women transition through menopause, a new study shows. Black women experience the accelerated decline earlier than white women do, researchers say. The new analysis, which comes from the largest and longest running study of women's health in midlife, the Study of Women's Health Across the Nation (SWAN), adds to growing evidence that menopaus
A recent study by the University of Kent has called for an increase in scientific surveys and collection of specimens to confirm the extinction of ultra-rare species. Dr. David Roberts, a conservation scientist at Kent's Durrell Institute of Conservation and Ecology, concluded from research that there is currently insufficient scientific surveys to determine whether many of the Earth's rarest spec
Researchers at Helmholtz Zentrum München, Technical University of Munich (TUM) and the German Center for Infection Research (DZIF) have developed a novel therapeutic approach to cure chronic hepatitis B.
Researchers from Tokyo Medical and Dental University developed a novel device to image and quantify volatile gases that are released through the skin in real-time. This gas imaging system could be used to provide non-invasive monitoring of diseases that are associated with specific volatile substances.
A multidisciplinary team of researchers at Japan's Tohoku University has found that a gene regulator, called BACH1, facilitates the spread of pancreatic cancer to other parts of the body. The scientists, who published their findings in the journal Cancer Research, say drugs that control BACH1 could improve disease prognosis.
Sixty-six million years ago, in the emerged lands of Laurasia -now the northern hemisphere- a primitive land tortoise, measuring about 60 cm, managed to survive the event that killed the dinosaurs. It was the only one to do so in this area of the world, according to a Spanish palaeontologist who has analysed its peculiar fossils, found in France.
An Australian study examining the relationship between flexibility and parent health has revealed formal family-friendly workplace provisions alone are not meeting the demands of working mothers and fathers.
Astronomers have spotted a star that is exploding with a brightness 100 times less than expected – and it's a mystery exactly why the explosion is so dim
Anyone can get salmonella poisoning, but babies, toddlers, the elderly and people with immunodeficiencies are particularly susceptible. For people with weakened immune systems, the gastrointestinal disease can lead to serious complications. So far it has taken several days to detect salmonella in food. A new rapid test being developed by Fraunhofer researchers will detect the germs in less than ei
Climate change is affecting the health of agricultural soils. Increased heat and drought make life easy for the pathogenic fungus Pythium ultimum. As an international team of researchers led by the Universities of Kassel and Bonn has shown, the fungus causes almost total crop failure in peas after a hot and dry stress event. Short-term soil recovery seems to be possible only in exceptional cases.
Working nights disrupts individuals' circadian rhythm, the body's internal clock responsible for neural and hormonal signaling. When the circadian rhythm is desynchronized from the sleep/wake cycle, it causes a cascade of hormonal changes that lead to metabolic disorders and the development multiple chronic conditions. Kulkarni recommends several measures to prevent serious health issues associate
A study at The University of Texas MD Anderson Cancer Center showed that circulating tumor cells (CTCs), a form of liquid biopsy, was independently associated with melanoma relapse, suggesting CTC assessment may be useful in identifying patients at risk for relapse who could benefit from more aggressive therapy following primary treatment.
Vast amounts of valuable energy, agricultural nutrients, and water could potentially be recovered from the world's fast-rising volume of municipal wastewater, a new UN study says.Some 380 billion cubic meters (380 trillion liters) of wastewater are now produced annually worldwide – five times the water passing over Niagara Falls — enough to fill Africa's Lake Victoria in roughly seven years, Lake
Amerikanske forskere har vist, hvordan staten Californien i 2045 kan være CO2-neutral. Det vil blandt andet kræve, at naturområder genoprettes, så der årligt trækkes 125 mio. ton CO2 ud af atmosfæren.
Bestselling business books promise to teach you the winning formula and reveal the secrets of success. But the inconvenient truth is that exceptional successes in business are largely based on luck. No rule exists for achieving exceptional performance because it usually requires doing something different or novel and there can be no recipe for such innovation.
There is a constant spring-cleaning in our cells: The cell's own recycling system, so-called autophagy, fills garbage bags with cellular waste, transports them to the recycling yard and makes the decomposed material available again. Researchers from the Max Planck Institute for Biology of Ageing in Cologne, Germany, have now been able to show in the model organism yeast that the membrane of the ga
The world's second biggest fish—the basking shark—prefers to travel with family to familiar feeding sites, according to a new study led by the University of Aberdeen.
Acute respiratory distress syndrome requires immediate action. In an emergency situation like this, patients are often ventilated using a heart-lung machine. This involves circulating the blood outside the body, adding oxygen and removing carbon dioxide via membranes. A team of researchers at the Fraunhofer Institute for Applied Polymer Research IAP has developed a new kind of membrane structure t
RUDN University chemists, together with Indian colleagues from Goa University, have synthesized an analog of alkaloid of alpkinidine, a substance with a signified cytotoxic effect. Before the team's research, there was no convenient way to synthesize such heterocycles. The authors were able to obtain an analog of alpkinidine using the Negishi reaction as a key stage (a palladium-catalyzed combinat
Der investeres stadigt mere kapital i europæiske opstartsvirksomheder, og der findes nu 99 inden for tech-området med en samlet markedsværdi på over én milliard dollars.
There is a constant spring-cleaning in our cells: The cell's own recycling system, so-called autophagy, fills garbage bags with cellular waste, transports them to the recycling yard and makes the decomposed material available again. Researchers from the Max Planck Institute for Biology of Ageing in Cologne, Germany, have now been able to show in the model organism yeast that the membrane of the ga
The world's second biggest fish—the basking shark—prefers to travel with family to familiar feeding sites, according to a new study led by the University of Aberdeen.
One of the cornerstones of quantum theory is a fundamental limit to the precision with which we can know certain pairs of physical quantities, such as position and momentum. For quantum theoretical treatments, this uncertainty principle is couched in terms of the Heisenberg limit, which allows for physical quantities that do not have a corresponding observable in the formulation of quantum mechani
The Electric Hummer is coming in May. (General Motors /) It's a weird Monday here in the tech world. We're just coming off the Super Bowl's first adventure into 4K streaming. Plus, Samsung is set to announce a whole bunch of new smartphones and possibly some other devices at its event in California tomorrow, which we'll be covering in real time here at PopSci.com . Luckily, this little gap in the
Half of all reported cases of carbon monoxide poisoning occur during the winter, according to the Centers for Disease Control and Prevention. Travelers are especially at risk due to varying regulations on alarms across states. Recently, 25 people were hospitalized for carbon monoxide (CO) poisoning at a vacation rental home in Idaho. "If a CO detector sounds its alarm at home or in your accommoda
There's been a lot of talk about quantum computers being able to solve far more complex problems than conventional supercomputers. The authors of a new paper say they're on the pat h to showing an optical computer c an do so, too. The idea of using light to carry out computing has a long pedigree, and it has gained traction in recent years with the advent of silicon photonics , which makes it pos
Used in microprocessors, smart electronics, medical sciences and renewable energy products, raw materials are an intrinsic part of our daily lives and the demand for them is rapidly growing. Referred to as critical raw materials (CRMs), some of these materials are economically and strategically important, and are under a supply risk as a great share of their worldwide production is concentrated in
Two studies from the National University of Singapore demonstrate that insects can learn from their previous experiences and adjust their future behaviour for survival and reproduction.
Houston Methodist neurosurgeons are looking at a new way to classify pituitary tumors that could lead to more precise and accurate diagnosing for patients in the future. These tests also could have potential for better diagnoses in other brain tumors. The findings, published Jan. 28 in Scientific Reports, describe a new way to study the blood of pituitary adenoma patients to determine tumor type a
A new deep learning model developed by researchers at the University of Eastern Finland can identify sleep stages as accurately as an experienced physician. This opens up new avenues for the diagnostics and treatment of sleep disorders, including obstructive sleep apnoea.
Prof. Zhonghua Sun at Curtin University, Australia, explains the novel applications of personalised 3D printed cardiovascular models for developing cardiac computed tomography (CT) imaging protocols with the goal of obtaining acceptable image quality with minimal radiation doses.
A team of researchers affiliated with several institutions in China created a photonic computer that was able to solve the subset sum problem. In their paper published in the journal Science Advances, the group describes their computer and how well it performed.
The profound threat of future climate change to biodiversity demands that scientists seek ever more effective ways to identify the most vulnerable species, communities, and ecosystems.
A team of researchers from Osaka University, Kyoto Prefectural University of Medicine, and Toppan Printing Co., Ltd. succeeded in reconstructing adipose tissue balls ("mini-breasts") with a functional vascular network using patient-derived cells, achieving a high graft survival rate in small animal models.
In a recent study published on Science Advances, L. K. Rivera-Tarazona and a research team in the departments of bioengineering and biological sciences at the University of Texas, Dallas, U.S., established a new method to explore genetic networks in the lab. They created living synthetic composites that changed shape in response to specific biochemical and physical stimuli. For example, Baker's ye
In the January issue of OneEarth, NIVA scientist Luca Nizzetto and co-writer Satish Sinha of Toxic Links argue that further empowering marginalized waste pickers in developing countries (already involved in the efficient recovery of value and materials from recyclable plastic waste) is key to curbing plastic inputs to the ocean and tackling several sustainable development goals. Financial mechanis
Before the United States 1970 Clean Air Act, rainfall all over the country was acidic. As precipitation would fall from the sky, it would mix with gases from industrial plants, emissions from cars, and especially coal and fossil fuel consumption. That caused the water to become acidic—also called "acid rain."
Climate change is affecting the health of agricultural soils. Increased heat and drought make life easy for the pathogenic fungus Pythium ultimum. As an international team of researchers led by the Universities of Kassel and Bonn has shown, the fungus causes almost total crop failure in peas after a hot and dry stress event. Short-term soil recovery seems to be possible only in exceptional cases.
A team of researchers from Osaka University, Kyoto Prefectural University of Medicine, and Toppan Printing Co., Ltd. succeeded in reconstructing adipose tissue balls ("mini-breasts") with a functional vascular network using patient-derived cells, achieving a high graft survival rate in small animal models.
In a recent study published on Science Advances, L. K. Rivera-Tarazona and a research team in the departments of bioengineering and biological sciences at the University of Texas, Dallas, U.S., established a new method to explore genetic networks in the lab. They created living synthetic composites that changed shape in response to specific biochemical and physical stimuli. For example, Baker's ye
Four newly discovered species of tropical sharks use their fins to walk beneath the waters off northern Australia and New Guinea. The ornately patterned sharks were the top predator on reefs during low tides when they used their fins to walk in very shallow water, says Christine Dudgeon of the University of Queensland. "At less than a meter long on average, walking sharks present no threat to peo
Are there more than two sexes? This is a question that has caused an enormous amount of social and political debate in recent years, but at its core, it is a scientific one, and I want to treat it as … Continue reading →
Seasonal forecasts for this winter were markedly accurate, with mild conditions in Northern Europe in December and January predicted already in October. Researchers in the S2S4E project are now working to find out how to improve the reliability of future outlooks.
A novel salt-tolerant bacterium cultured from the Red Sea effectively removes nitrogen from salty wastewater, suggests research from Pascal Saikaly's team at KAUST. The bacterium could be used to treat sewage coming from toilets that use seawater for flushing in place of freshwater.
It was long believed that physical characteristics acquired by organisms during their lifetime could not be passed on to their offspring. However, in recent years, the theory of inheritance of acquired traits has gained support, with studies showing how offspring of rats and tiny worms inherit behaviors that were acquired by their parents in response to particular environmental stimuli, even when
It was long believed that physical characteristics acquired by organisms during their lifetime could not be passed on to their offspring. However, in recent years, the theory of inheritance of acquired traits has gained support, with studies showing how offspring of rats and tiny worms inherit behaviors that were acquired by their parents in response to particular environmental stimuli, even when
Amsterdam, NL, February 3, 2020 – Individuals at risk for Alzheimer's disease (AD) because of family history or genetic predisposition who engaged in six months of aerobic exercise training improved their brain glucose metabolism and higher-order thinking abilities (e.g., planning and mental flexibility) called executive function; these improvements occurred in conjunction with increased cardiores
An Australian study examining the relationship between flexibility and parent health has revealed formal family-friendly workplace provisions alone are not meeting the demands of working mothers and fathers.
The chemical signature left behind by hurricanes, fires, cold snaps and droughts can linger in the slow-moving water of the Florida Everglades for up to a decade.
The chemical signature left behind by hurricanes, fires, cold snaps and droughts can linger in the slow-moving water of the Florida Everglades for up to a decade.
An analysis of colorectal cancer rates among US adults finds a 46% increase in new diagnoses from ages 49 to 50, researchers report. The finding indicates that many latent cases are likely going undiagnosed until routine screenings begin at 50. Researchers found that almost 93% of the cases discovered at age 50 were invasive, meaning that most would require more aggressive treatment including sur
The economic shock waves of the coronavirus outbreak may eclipse those caused by the 2003 SARS pandemic, as analysts downgrade forecasts for China's growth
A team of researchers at Wageningen University & Research has found that microplastics in soil sediments can reduce the number of Naididae worms it can host. In their paper published in the journal Science Advances, the group describes experiments they carried out with worms and microplastics and what they learned from them.
Australia is enduring a horror bushfire season, made worse by a severe drought in the eastern states, and many Australians are lamenting the cruel and fickle hand of nature.
There may be a way to make airplanes less prone to lightning strikes, according to new research exploring the role of the aircraft in the electrical events. The trick, surprisingly, might be to give airplanes a bit of an electrical charge when they are in the air, say scientists reporting their experimental work in AGU's Journal of Geophysical Research: Atmospheres.
Despite commitments to cut CO2 emissions and limit global warming between 1.5-2 °C under the Paris Agreement, fossil fuel emissions show little sign of abating. According to new estimates from a group of scientists in 2019, global emissions will grow 0.6 percent year-on-year and reach 36.8 billion t of CO2, or 36.8 Gt carbon. "Fossil CO2 emissions will likely be more than 4percent higher in 2019 t
Nature, Published online: 03 February 2020; doi:10.1038/d41586-020-00273-4 From tobacco to food and fuels, industries use denial, deceit and doubt to corrupt. By Felicity Lawrence.
PLUS. Danmarks eneste emballageglasværk oplever større problemer med forurenede materialer og faldende mængder genanvendt glas, som de mener skyldes udbredelsen af kombineret metal/glas/plast-sortering. Det kan betyde, at virksomheden i 2020 skal hente op til 13.000 ton materialer fra udlandet for at d…
As published today in the Royal Society of Chemistry's Chemical Communications, a compound known as 'C1' uses a novel mechanism to efficiently prevent the enzyme gamma-secretase from producing amyloids.
A novel approach to reverse the progression of healthy cells to malignant ones may offer a more effective way to eradicate colorectal cancer cells with far fewer side effects, according to a KAIST research team based in South Korea.
Salmonella is a key cause of foodborne gastroenteritis around the world, with most outbreaks linked to eggs, poultry meat, pork, beef, dairy, nuts and fresh produce. Now Flinders University researchers have found a simple solution for preventing salmonellosis affecting eggs through surface contamination, giving crucial help for food services industries.
A citizen science program more than 50 years old has shed new light on the movements and distribution patterns of 35 species of Atlantic sharks. The updated database revealed new information on some of the least known species, and uncovered a few surprises about where sharks go and how long they live.
An international team of scientists has discovered an exotic new form of topological state in a large class of 3D semi-metallic crystals called Dirac semimetals. The researchers developed extensive mathematical machinery to bridge the gap between theoretical models with forms of 'higher-order' topology (topology that manifests only at the boundary of a boundary) and the physical behavior of electr
As climate change-related drought fanned catastrophic wildfires across Australia, claiming lives, homes, and farms, the richly diverse flora and fauna took a tragic toll. The World Wildlife Fund estimates that more than one billion animals have been killed, including thousands of koalas, kangaroos, wallabies, kookaburras, and cockatoos. Many thousands more are injured and homeless—and under deep s
The protagonist of the decorum-defying but wildly entertaining new film, Jojo Rabbit, sees the world in black and white. The film is set in Nazi Germany and ten-year-old Jojo is a fiercely committed member of the Hitler Youth. For him, Aryans are good and Jews are bad.
Researchers at EPFL have developed a material that combines transparent properties with the moiré effect to produce images. The technology could have interesting decorative and anti-forgery applications.
As climate change-related drought fanned catastrophic wildfires across Australia, claiming lives, homes, and farms, the richly diverse flora and fauna took a tragic toll. The World Wildlife Fund estimates that more than one billion animals have been killed, including thousands of koalas, kangaroos, wallabies, kookaburras, and cockatoos. Many thousands more are injured and homeless—and under deep s
Using the South African Astronomical Observatory (SAAO), Japanese astronomers have investigated the magnetic field structure of the protostellar core Barnard 335. The new observations suggest that the magnetic field of Barnard 335 is distorted, which could have implications for our understanding of the nature of this object. The finding is detailed in a paper published January 22 on arXiv.org.
Historic rainfall in southeastern Brazil has created deadly floods and widespread destruction in a region that was experimenting with "more progressive" planning and zoning policies than most, says Northeastern political science professor Thomas Vicino, who studies metropolitan development and housing in Brazil.
When you knock on a melon to see if it's ripe, you are using sound waves to probe the structure of the material inside. Physicists at the University of Chicago were using the same concept to explore how sound waves travel through patterned structures when they noticed an oddity: completely different structures sounded the same.
Young children can benefit greatly from exposure to racial and ethnic diversity during a crucial formative period in their lives, according to a Penn State education professor. However, recent research indicates that a high degree of segregation in American preschools could be hindering students from forming those valuable cross-racial connections.
Since the breakthrough in gravitational wave astronomy back in 2015, scientists have been able to detect more than a dozen pairs of closely located black holes—known as binary black holes—by their collisions into each other due to gravity. However, scientists still debate how many of these black holes are born from stars, and how they are able to get close enough for a collision within the lifetim
You know when you walk onstage and immediately get "butterflies" in your stomach? That's the cells in your brain and gut talking to each other, says assistant chemical engineering professor Abigail Koppes.
You know when you walk onstage and immediately get "butterflies" in your stomach? That's the cells in your brain and gut talking to each other, says assistant chemical engineering professor Abigail Koppes.
Here's a weird one for you – one of those papers that, if it holds up, will make us all wonder about just how much we really know about cell biology. It's from the IRCM at Montpellier, along with another INSERM lab (Gustav Roussey) and a lab at the Jacques Monod Institute at the Univ. of Paris, and the authors report that they can detect naked mitochondria floating around in blood samples. They a
A new study suggests the Western Antarctic Ice Sheet is less stable than researchers once thought. As in the past, its collapse in the future is likely.
The first European device to land on the moon this decade will be a drill and sample analysis package, and the teams behind it are one step closer to flight as part of Russia's Luna-27 mission.
Active galactic nuclei (AGN) are supermassive black holes at the centers of galaxies that are accreting material onto their hot circumnuclear disks, releasing the energy in bursts of radiation or as particle jets moving at close to the speed of light. These energetic outbursts in turn drive outflows of ionized, neutral, and molecular gas that can extend over thousands of light-years and move at sp
Antallet af senge er faldet drastisk, mens sundhedsopgaverne er vokset. Hvis man skal forebygge stigende overbelægning og svigt i sektorovergangene, skal det nære sundhedsvæsen styrkes nu, påpeger Lægeforeningen.
On Thursday, Nahid Bhadelia left rural Uganda, where she had been helping to set up a center for studying viruses such as Ebola. Before she left, she was peppered with concerned questions about when 2019-nCoV—the new coronavirus that has rapidly spread through China—would appear there. The virus had already reached 23 other countries, and when Bhadelia arrived in Amsterdam on Friday morning for a
Fra første maj er Mikkel Vossen Rasmussen ledende overlæge i psykiatrien i Vejle, der i årevis har ligget underdrejet med for få sengepladser, lægemangel og dårligt arbejdsmiljø.
Europa-Parlamentet har vedtaget sin årsplan for 2020. Heri kan man blandt andet finde planen om, at EU-Kommissionen skal vedtage en ensretning af opladerstik med USB-C som standard senest i juli 2020. Apple er modstander af ensretningen.
The biggest clamors most of us will experience are things like jackhammers and jet engines, but the most ear-shattering noises in existence would do far worse than make you wince. Events on the scale of volcanic eruptions and exploding meteorites register at more than 194 decibels, a level that generates enough force to potentially pierce your eardrums and pop your lungs. At those highs, sound wa
Despite all the newspaper endorsements , Senator Elizabeth Warren is an underappreciated politician—and the candidate herself is among the ranks of those who have sold her short. She is a deep and original political thinker. Over her time in academia and in the Senate, she has evolved a distinctive critique of American capitalism as presently practiced, and a lyrical vision of what might replace
General relativity makes numerous predictions about gravity, time, and the very nature of the universe. So far, all the predictions we've been able to test have held up to scrutiny, but the effects are usually subtle and difficult to visualize. Astronomers have spotted a distant star that further confirms general relativity in a more obvious fashion — it's dragging space-time along with it. Einst
Nature, Published online: 03 February 2020; doi:10.1038/d41586-020-00216-z Laboratory heads are deploying apps and software in innovative ways to build broad and diverse research groups.
Michael Bloomberg built his business and political career on the accumulation and analysis of data, which is the fossil record of history—of precedent . Which makes it all the more unusual that his road to the presidency doesn't have any. His self-funded campaign? " Unprecedented, " says The New York Times . His gambit to ignore every primary and caucus in the month of February to plow hundreds o
In principle, an advanced civilization could use blasts of light from exploding stars to accelerate spacecraft to extraordinary speeds — Read more on ScientificAmerican.com
Med investeringer for yderligere 16 milliarder kroner i energieffektivitet kan Danmark reducere sit CO2-udslip med 66 pct. Den samlede pris bliver i så fald 175 milliarder kroner. Det vurderer EA Energianalyse.
Most testing of autonomous vehicles until now has been in sunny, dry climates. That will have to change before the technology will be useful everywhere.
Burger King's inaugural commercial for the Impossible Whopper, the plant-based burger it launched internationally in November, is dominated by burly men biting down and experiencing aggressive disbelief. In a hidden-camera scenario, loyal consumers of the Whopper are deceived, receiving an otherwise-identical burger whose patty has been forged from soy by the company Impossible Foods. True to the
Republicans voted down a measure to call witnesses in President Donald Trump's impeachment trial and are moving to acquittal in a hell-for-leather dash to put the crisis behind them. It's a doomed errand. With Trump, the next crisis is always just ahead. Actually, the first "next crisis" has already arrived. The New York Times reported Friday that, in his forthcoming book, former National Securit
Editor's Note: Every Monday, Lori Gottlieb answers questions from readers about their problems, big and small. Have a question? Email her at dear.therapist@theatlantic.com . Dear Therapist, My mother and I are very close because it has always been just the two of us in our family. My parents divorced when I was a child and I have spent my whole life with my mom. I have no aunts, uncles, or grandp
Donald Trump has harangued generals at the Pentagon over what he's called the "loser war" in Afghanistan and their failure to end it. He has dismissed Syria as " sand and death ," and complained that the United States was supposed to be there for only a " short-term hit ." He has sought and failed to get rapid pullouts from both places. But he hasn't made any such promise for Iraq. In fact, he ha
I n November , I visited FiveThirtyEight 's offices in New York on picture day. For journalists who style themselves as nerds, the formal photo shoot was a mild form of torture. Nate Silver, the site's founder, donned a blazer, forced a smile for his headshot, then snuck away to get back to work on the site's 2020 primary forecast. Though FiveThirtyEight now has a staff of about 35, covering spor
In principle, an advanced civilization could use blasts of light from exploding stars to accelerate spacecraft to extraordinary speeds — Read more on ScientificAmerican.com
When Pete Buttigieg accepted a position at the management consultancy McKinsey & Company, he already had sterling credentials: high-school valedictorian, a bachelor's degree from Harvard, a Rhodes Scholarship. He could have taken any number of jobs and, moreover, had no obvious interest in business. Nevertheless, he joined the firm. This move was predictable, not eccentric: The top graduates of e
What are the symptoms caused by the virus from Wuhan in China, how does it spread, and when should you see a doctor? Coronavirus: how to protect yourself from infection Coronavirus – latest updates It is a novel coronavirus – a member of the coronavirus family that has never been encountered before. Like other coronaviruses, it has come from animals. Many of those infected either worked or freque
PLUS. En ny motorvej i Jylland skulle aflaste E45, men de samfundsøkonomiske gevinster ved en ny motorvej mellem Give, Billund og Haderslev er skrumpet ind, lyder det fra professor i økonomi Mogens Fosgerau.
Nature, Published online: 03 February 2020; doi:10.1038/d41586-020-00218-x Scientists pinpoint molecular changes that could help to reveal people at risk of developing the disease before age 50.
The virus can be spread when an infected person coughs or sneezes. Hand-washing is a first line of defence What is coronavirus and how worried should we be? The Wuhan coronavirus outbreak is a new illness and scientists are still assessing how it spreads from person to person, but similar viruses tend to spread via cough and sneeze droplets . Continue reading…
Andrea Leadsom and Michael Gove among senior figures touted to replace Claire O'Neill as talks leader Britain needs to find a new high-level leader of its team preparing for this year's crunch climate talks in Glasgow as a matter of extreme urgency. That is the clear message from politicians, senior scientists and climate experts following last week's sacking of Claire O'Neill as president of the
A plant-based diet may be key to lowering risk for heart disease. Penn State researchers determined that diets with reduced sulfur amino acids — which occur in protein-rich foods, such as meats, dairy, nuts and soy — were associated with a decreased risk for cardiovascular disease. The team also found that the average American consumes almost two and a half times more sulfur amino acids than the
The United Arab Emirates, a leading OPEC producer, announced Monday the discovery of huge gas reserves, saying the find would help the Gulf state achieve self-sufficiency.
En 3D-skrivare är en maskin som kan ta emot en digital, tredimensionell modell och "skriva ut" den genom att bygga upp lager på lager av ett material, vanligtvis nedsmält plast som sprutas ut i en tunn tråd. Sedan ett år har forskare på Skånes universitetssjukhus kombinerat denna teknik med läkekonstens magnetkamera, även kallad datortomografi, för att skriva ut exakta kopior av patienters organ.
Can two articles about aspects of Schrödinger's work exist in the literature at the same time if they have plagiarized from other papers about the same subjects? The first paper, "Fixed point theorems for solutions of the stationary Schrödinger equation on cones," appeared in 2015 and was written by Gaixian Xue, of Henan University of … Continue reading
This was a halftime show split in half, almost at war with itself. For the first part, the great whirling Shakira kept low to the ground and close to the body. The 43-year-old Colombian phenom appeared on a platform but quickly descended to the level of her dancers, where tassels and hips swayed by gravity-bound logic: side to side, forward then back. Shakira's wide-ranging pop, viewers were remi
Among the many strange and worrying truths about American elections, one has a tendency to get lost: The path to the presidency can run not just through battleground states but also through the Supreme Court. Back in 2000, it was the Supreme Court in Bush v. Gore that put an end to a month-long post-election battle between the Democrat Al Gore and the Republican George W. Bush over who would be a
Forskningskommunikation gör det svåra begripligt, och det konstiga kul. Vetenskapsfestivalen är full av forskning, som kommuniceras på olika sätt. Men det finns också en metanivå: Forskning om forskningskommunikation. Hur tar du till dig ny forskning? Söker du upp den? Kommer den till dig? Och i så fall hur? En halv dag på Vetenskapsfestivalen i Göteborg ägnas åt just forskningskommunikation. På
Ju snabbare en person åker Vasaloppet, desto lägre är risken för att få högt blodtryck visar forskare vid Uppsala universitet. Den högintensiva träning som krävs för att klara loppet har goda effekter på blodkärlen. Högt blodtryck räknas som en av de största riskfaktorer för hjärt-kärlsjukdom och tidig död. Under flera år har forskare vid Uppsala universitet jämfört hälsan hos 206 889 Vasaloppsåk
Tankene, hvor man opbevarer radioaktivt vand fra det ulykkesramte atomkraftværk i Fukushima, er snart fyldte. Og der er dårligt plads til flere. En regeringsnedsat komite har undersøgt om vandet skal udledes i havet eller fordampes.
Nature Communications, Published online: 03 February 2020; doi:10.1038/s41467-020-14395-w Precise regulation of auxin concentration via transport and metabolism determines the developmental fate of plant tissues. Here the authors show that local auxin biosynthesis is regulated by TMK4-dependent phosphorylation of the TAA1 enzyme and that this is required for proper root development.
Nature Communications, Published online: 03 February 2020; doi:10.1038/s41467-020-14515-6 Dingoes evolved in isolation from both their domesticated and wild ancestors. Here, the authors investigate the genomic basis of the feralization of dingoes and trace their origin to domestic dogs that migrated to Australia approximately 8300 years ago.
Nature Communications, Published online: 03 February 2020; doi:10.1038/s41467-020-14435-5 C-C bond scission of unstrained cycloketones with high regioselectivity is a challenging synthetic task. Here, the authors show a facile C-C cleavage of cyclohexanones and cyclopentanones with unusual selectivity under mild conditions with the aid of an in situ formed side-chain aryl radical.
Nature Communications, Published online: 03 February 2020; doi:10.1038/s41467-020-14294-0 Powdery mildew is a major threat to world wheat yields. Here the authors describe the map-based cloning of Pm24, a gain-of-function powdery mildew resistance allele that encodes a tandem kinase-pseudokinase protein with a deletion in a kinase domain that is endemic to certain wheat landraces.
Nature Communications, Published online: 03 February 2020; doi:10.1038/s41467-020-14423-9 Tropical cyclones can cause severe damage, in particular through flooding of coastal areas. Here, the authors show that in addition to known impacts, tropical cyclone rainbands can cause meteotsunami waves that can contribute significantly to the total water levels and hence flooding risks.
Nature Communications, Published online: 03 February 2020; doi:10.1038/s41467-019-14150-w Dynamic restructuring of metal nanoparticle surfaces greatly influences their catalytic, electronic transport, and chemical binding functionalities. Here, the authors show that non-equilibrium atomic-scale lattice defects can be detected in nanoparticles by using nano-optics at the sub-5nm scale.
Nature Communications, Published online: 03 February 2020; doi:10.1038/s41467-020-14478-8 Myelosuppressive injuries lead to chronic MAPK activation and impair blood reconstitution. Here, the authors show that chronic activation endothelial MAPK impairs hematopoietic stem cell (HSC) function through NFkB signaling, and that post-myelosuppressive HSC defects can be reversed by administration of Ste
Nature Communications, Published online: 03 February 2020; doi:10.1038/s41467-020-14504-9 The local Drude model predicts that, under certain conditions, surface plasmon polaritons at a metal-dielectric surface have a frequency range where only unidirectional propagation is supported. Here, the authors show that in more realistic non-local models surface plasmon polaritons exhibit bidirectional pr
Scientific Reports, Published online: 03 February 2020; doi:10.1038/s41598-020-58149-6 Controlled edge dependent stacking of WS 2 -WS 2 Homo- and WS 2 -WSe 2 Hetero-structures: A Computational Study
For decades, a Pennsylvanian coke plant polluted the air above the city of Avalon. But researchers and officials turned a blind eye to the issue as the health of locals continued to deteriorate. Did the factory make residents sick? The science is lacking — and Avalon and its people are not alone.
Experts in infectious disease say viruses such as the novel coronavirus don't survive long on surfaces, and there's no evidence from similar outbreaks that anyone got infected by handling a package. (Image credit: Don Emmert/AFP via Getty Images)
CEDAR RAPIDS—Heading into tonight's Iowa caucus, the clock may be ticking faster on the Democratic presidential candidates than they believe. All of the leading contenders have campaigned energetically and extensively across the state during the past few days, but none have moved to sharply contrast themselves with their rivals. None of the candidates have offered a sustained challenge to Senator
BURLINGTON, Iowa—A crush of new Democratic voters, mobilized by a wave of anti-Trump energy, will arrive at their caucus precinct, and there will not be enough voter-registration forms. The lines will be long, and some Iowans, many of them elderly, will shiver in the cold for hours before getting inside. The caucus itself will be pandemonium: There won't be enough preference cards for caucus-goer
Y ukong Zhao wasn't always a Republican. The Chinese American businessman and longtime independent started to drift to the right in 2014, when he led Asian activists in a campaign against affirmative action that culminated in a high-profile lawsuit against Harvard University. When the Trump administration came out in support of the cause in 2018, he started to give the GOP a closer look. In Decem
Excess selenium from fertilizers and other natural sources can create air pollution that could lead to lung cancer, asthma, and Type 2 diabetes, according to new UC Riverside research.
. Oftast handlar det inte om den stora coola medicinen som förändrar livet, utan om tålmodig och uthållig forskning som till slut räddar liv. De genetiska kartorna över cancerns olika överlevnadsstrategier blir mer omfattande och innebär nya skräddarsydda behandlingsformer.
The claim that medical errors are the third leading cause of death in the US has always rested on very shaky evidence; yet it has become common wisdom that is cited as though everyone accepts it. But if estimates of 250,000 to 400,000 deaths due to medical error are way too high, what is the real number? A recently published study suggests that it's almost certainly a lot lower.
Excess selenium from fertilizers and other natural sources can create air pollution that could lead to lung cancer, asthma, and Type 2 diabetes, according to new UC Riverside research.
Dozens of koalas have been euthanized and some 80 more are being treated for injuries and starvation after their habitat was logged, prompting an Australian government investigation Monday.
Dozens of koalas have been euthanized and some 80 more are being treated for injuries and starvation after their habitat was logged, prompting an Australian government investigation Monday.
Wuhan hospitals need more staff and supplies as residents describe increasingly desperate conditions. Coronavirus – latest updates Dozens more people have died in the city at the centre of China's coronavirus outbreak, where hospitals are severely undersupplied and understaffed and residents have described increasingly desperate conditions. Chinese state media reported 57 new deaths on Monday, al
A UTSA researcher has discovered that, whether in a pair or in groups, success in primate social systems may also provide insight into organization of human social life.
A UTSA researcher has discovered that, whether in a pair or in groups, success in primate social systems may also provide insight into organization of human social life.
A University of Saskatchewan-led international team has produced the first web and mobile phone app of Geoffrey Chaucer's The Canterbury Tales—the first major literary work augmented by new scholarship, in any language, presented in an app.
Coastal plant communities are a crucial element of global sea defences but are increasingly threatened by the human-induced effects of climate change, according to new research.
PLUS. EU-mærket for dækstøj er ikke dækkende, konkluderer en undersøgelse fra Vejdirektoratet. Transportministeren beder nu sit ministerium om at kigge på sagen.
Britain has officially left the European Union—not with a bong , but a whimper. The muted celebrations reflected the country's divisions, but also another fundamental law of politics: Triumph has a very short half-life. For three and a half years, Brexit has dominated the news agenda and the parliamentary timetable. Now, though, its existential questions— What kind of country are we? Will we ever
Technology is playing a bigger than ever part in healthcare, but it's a relationship that needs careful regulation The deal has yet to be approved by the relevant regulators, but Google has got most of the way to buying Fitbit – the maker of wearable devices that track people's sleep, heart rates, activity levels and more. And all for a trifling $2.1bn (£1.6bn).The upshot is yet another step forw
Researchers led by UC San Diego built a device that sorts and separates cancer cells from the same tumor based on how 'sticky' they are. They found that less sticky cells migrate and invade other tissues more than their stickier counterparts, and have genes that make tumor recurrence more likely.
A UTSA researcher has discovered that, whether in a pair or in groups, success in primate social systems may also provide insight into organization of human social life.
A marker for heart disease risk considerably worsens as women transition through menopause, according to a new analysis from the largest and longest running study of women's health in midlife. Black women experience this accelerated decline earlier in menopause than their white counterparts. The findings add to growing evidence that menopause is a critical time for changes in cardiovascular health
New research led by the University of Plymouth suggests the impact of rising sea levels and the increased frequency and intensity of extreme storm events on coastal plants needs to be placed in greater focus.
Canada must invest in social spending and recognize that our health care system is not 'universal' if Canadians living in low-income neighborhoods are to have the same chance of good health as other Canadians, argues an editorial in CMAJ (Canadian Medical Association Journal).
A new score that measures multiple long-term health conditions performs better than the current Charlson Comorbidity Index and may help in health care planning and delivery, according to new research in CMAJ (Canadian Medical Association Journal).
from Dr. Ann McKee / Boston University A recent addition to the Netflix "making a murderer" franchise is Killer Inside: The Mind of Aaron Hernandez . At the end of any such story, there is no single answer as to what "made" the murderer. The story of Aaron Fernandez is still in the public eye because of his fame as a professional football player for the New England Patriots (2010-2012). He was so
Exhibition marks bicentenary of nursing pioneer's birth with focus on life after Crimean war An exhibition on Florence Nightingale which marks 200 years since her birth will shine a spotlight on her as an older woman. Nightingale is often pictured in her 30s, when she nursed wounded soldiers in the Crimean war. Continue reading…
Elon Musk released an EDM song on SoundCloud. The track "Don't doubt ur vibe" has racked up millions of listens. Musk said he wrote the lyrics and performed them himself. One of the most fascinating figures of our time, the tech entrepreneur Elon Musk has released an electronic dance single on Soundcloud, hoping to make you move and not "doubt your vibe". Musk captures the public's imagination bo
An international study, led by Australia's Monash University, has discovered wild grey seals can clap their flippers underwater during breeding season.
The solar system's innermost planet can never be seen in the night sky. But there is a chance to see it at twilight during the next two weeks This coming week offers the chance of seeing Mercury in the evening sky. The innermost planet, Mercury's orbit is just 0.38 times the size of Earth. Being that close to the sun means that we can never see the planet in the night sky but at certain times of
A U.S. woman who said she was visiting England to do a study of the late World War II codebreaker and computing pioneer Alan Turing walked into the prestigious boys' boarding school he attended and asked to see a collection of his memorabilia.
Today's photo story is the fourth in a year-long Sunday series, focusing on each of the 50 states in the United States of America. Hawaii, the 50th state admitted to the union, sits isolated in the Pacific Ocean—some 2,000 miles from the U.S. mainland. The archipelago of 137 islands contains an incredible diversity of wildlife, climates, and landscapes—lush jungles, beaches, active volcanoes, and
Story of the Week… Opinion of the Week… El Niño/La Niña Update… Toon of the Week… Coming Soon on SkS… Climate Feedback Claim Review… SkS Week in Review… Poster of the Week… Story of the Week… Scientists alarmed to discover warm water at "vital point" beneath Antarctica's "doomsday glacier" Scientists have found warm water beneath Antarctica's "doomsday glacier," a nickname used
And they're not the only ones in trouble—orchid species around the world face increasing threats from illegal trade and habitat destruction. — Read more on ScientificAmerican.com
And they're not the only ones in trouble—orchid species around the world face increasing threats from illegal trade and habitat destruction. — Read more on ScientificAmerican.com
Rapidly rising caseloads alarm researchers, who fear the virus may make its way across the globe. But scientists cannot yet predict how many deaths may result.
The sound resembles 'shotgun-like cracks' and attracts potential mates A wild grey seal ( Halichoerus grypus ) has been caught "clapping" on camera for the first time, making sounds that resemble "shotgun-like cracks". The large male was filmed striking its flippers together off the coast of the Farne Islands, near Northumberland, during the breeding season in 2017. Continue reading…
Number buffs got pumped for more than the Super Bowl on 02-02-2020, a date that marks a rare global palindrome. Many are choosing it as a good day to get married. (Image credit: Chris Yarzab/Flickr)
This year could be a crucial one for ocean protection – but threats abound. A robust global treaty is needed The 60th anniversary of the expedition that first took humans to the highest spot on earth – the peak of Everest – was widely celebrated seven years ago. The 60th anniversary of the first expedition to its deepest point has gone almost unnoticed . Yet that trip to the bottom of the Challeng
The fossil of an ancient squid relative tells paleontologists something new about the reptile that tried to feed on it. — Read more on ScientificAmerican.com
Groundhogs are less accurate at weather forecasting than are coin flips, but they are nonetheless pretty interesting critters. — Read more on ScientificAmerican.com
Groundhogs are less accurate at weather forecasting than are coin flips, but they are nonetheless pretty interesting critters. — Read more on ScientificAmerican.com
Australia's horrific bushfires could be the catalyst that pushes the world to a mass recognition that it's time to act As a climate scientist on sabbatical in Australia , I've had plenty of conversations about the climate crisis lately as bushfires have burned their way to the front of everyone's mind. Although the Murdoch media make it seem as if there's plenty of debate, the reality is that mos
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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.
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