People watching the total lunar eclipse in the early hours of Monday morning noticed a brief flash of light, which has now been confirmed as a meteorite impact
What We're Following Today It's Tuesday, January 22. This is the 32nd day of the partial government shutdown. The Donald Trump administration said it is exploring ways to keep providing assistance to the nearly 40 million Americans receiving SNAP benefits if the current stalemate continues into March. In 2020 News: California Senator Kamala Harris announced on Martin Luther King Jr. Day that she'
Don't look now, but you'll have a lot of updating to do if you live deep in the Apple ecosystem. Apple has released updates that tackle a host of issues for iOS, macOS, tvOS, …
Health Owning your personal health data can come at a cost. NYU Langone started allowing its patients to access their medical records through Apple's Health Records app in a wave of health care organizations integrating the Apple…
An investigation by Chinese authorities found He Jiankui broke national regulations in his controversial gene editing work — Read more on ScientificAmerican.com
The blood-red color of the moon during a total lunar eclipse may be difficult to explain without a basic understanding of orbital mechanics, but flat-Earthers have come up with a way to circumvent scientific facts and construct a creative explanation.
The weirdly clustered orbits of some far-flung bodies in our solar system can be explained without invoking a big, undiscovered "Planet Nine," a new study suggests.
Telekombolaget Liberty Latin America uppgavs enligt Bloomberg ha lagt ett bud på 7,6 miljarder dollar, motsvarande 68,5 miljarder kronor, på den luxemburgska teleoperatören Millicom.
A fungal disease called white-nose syndrome has killed millions of North American cave-dwelling bats over the past decade. Now, scientists are field testing some promising treatments.
En hög smäll har hörts vid ett flerfamiljshus i sydöstra delen av Kista. Nationella bombgruppen är på plats och polisen utreder allmänfarlig ödeläggelse. – Mycket talar för att det varit någon typ av explosion snarare än en sten som krossat rutorna, säger Anna Westberg presstalesperson vid polisregion Stockholm.
The Time on Saturn For years, the length of a day on Saturn has remained an unsolved puzzle to frustrated astronomers. But now, a graduate student from the University of California Santa Cruz believes that he has finally solved the mystery. Christopher Mankovich used the planet's rings to determine that a day on Saturn lasts for 10 hours, 33 minutes, and 38 seconds. Being a gas giant, Saturn has n
For years, some astronomers have suspected that a planet lies beyond Neptune's orbit in the far reaches of our solar system — a mysterious, giant planet dubbed "Planet Nine." That theory is based on the strange orbital motions of small, distant worlds that behave like some unseen object is influencing their movements. But now a group of researchers has come up with another way to explain these orb
More than 15 percent of women in developed countries suffer from pregnancy complications associated with the placenta, the disk-shaped organ that sustains a growing fetus. Now researchers find the placenta adapts when nutrients are scarce. The discovery identifies possible targets for intervention, the researchers say. "Pregnancy complications are [often] linked to poor placental growth and functi
With reports about climate change becoming increasingly dire, it's increasingly important to find an eco-friendly way to not only generate energy, but also store it. After all, wind turbines and solar power and the like don't run steadily. So we can't just stick that extra energy in a bottle to use when the wind dies down and the sun sets. Only no, that's almost exactly what a group of Scottish sc
Current hygiene measures against aggressive germs could sometimes be counterproductive, according to a group of researchers. They propose to examine the role diversity of microorganisms plays in our domestic environment more intensively. The findings could challenge existing strategies for fighting infectious diseases and resistant germs.
In Your Bones When astronauts are in space, the reduced gravity means their bones don't have to carry as heavy of a load as they do on Earth. This can lead to a loss of bone density that can affect the astronaut throughout their lifetime , increasing their risk of breaking bones as they grow older. Now, researchers in the United Kingdom think they've found a way to prevent this loss of density —
Annals of Family Medicine is a peer-reviewed, indexed research journal that provides a cross-disciplinary forum for new, evidence-based information affecting the primary care disciplines.
En skoltaxi i Malmö lämnade av en nioårig funktionsnedsatt flicka som inte kan prata hemma hos fel föräldrar. Hennes föräldrar var utom sig av oro och först efter en timme kom flickan hem, skriver Sydsvenskan.
A new report by Oxfam argues that wealth inequality is causing poverty and misery around the world. In the last year, the world's billionaires saw their wealth increase by 12%, while the poorest 3.8 billion people on the planet lost 11% of their wealth. The report prompted Anand Giridharadas to tweet: "Don't be Pinkered into everything's-getting-better complacency." We explain what Steven Pinker'
Dead Star Sometimes when a star dies, the planets that orbited it survive, either freely floating through the galaxy or orbiting whatever's left of their former star. Normally, the giant cloud of dust given off as the star dies obscures these lonely planets. But Jason Nordhaus, a NASA-funded astrophysicist at the Rochester Institute of Technology, wants to solve the mystery of what happens to pla
Growing muscle tissue on grooved platforms helps neurons more effectively integrate with the muscle, a requirement for engineering muscle in the lab that responds and functions like muscle in the body, University of Illinois researchers found in a new study. Such engineered muscle with integrated nerves has applications in reconstructive and rehabilitative medicine, as well as for engineered biolo
A landmark study from The Australian National University has found that forest soils need several decades to recover from bushfires and logging — much longer than previously thought.
In the animal kingdom, food access is among the biggest drivers of habitat preference. It influences, among other things, how animals interact, where they roam and the amount of energy they expend to maintain their access to food. But how do different members of ecologically similar species manage to live close to each other?
Parent corals from the Gulf of Aqaba that experience increased temperatures and ocean acidification stress during the peak reproductive period are not only able to maintain normal physiological function, but also have the same reproductive output and produce offspring that function and survive as well as those which were produced under today's ambient water conditions.
The question of how quickly the universe is expanding has been bugging astronomers for almost a century. Different studies keep coming up with different answers—which has some researchers wondering if they've overlooked a key mechanism in the machinery that drives the cosmos.
Designating relatively small parcels of land as protected areas for wildlife with no habitat management—which has frequently been done in urban-suburban locales around the world—likely does not benefit declining songbird species, according to a team of researchers who studied a long-protected northeastern virgin forest plot.
Researchers have tested the sounds made by six different acoustic guitars in a study addressing the effects of the type of wood used in their construction. Some of the woods used for guitar backs are revered by guitar players for their acoustic qualities, and are claimed to be tonally superior to other woods. Unfortunately many of these woods are expensive, rare, and from unsustainable sources.
Researchers have discovered the long-sought reason that many people with joint replacements experience harmful inflammation and bone loss. Their finding may pave the way for new therapies to reduce pain and prevent the need for follow-up surgery.
Designating relatively small parcels of land as protected areas for wildlife with no habitat management—which has frequently been done in urban-suburban locales around the world—likely does not benefit declining songbird species, according to a team of researchers who studied a long-protected northeastern virgin forest plot.
Hånade gymnasiepojkar en man ur den amerikanska ursprungsbefolkningen – eller försökte de lugna en spänd situation under ett besök i Washington DC? Händelsen som har skapat stora rubriker i USA har nu omvärderats.
Designating relatively small parcels of land as protected areas for wildlife with no habitat management — which has frequently been done in urban-suburban locales around the world — likely does not benefit declining songbird species, according to a team of researchers who studied a long-protected northeastern virgin forest plot.
Någon form av hög smäll har hörts i sydöstra delen av Kista. Polisens bombgrupp är på väg. – Vi har konstaterat en krossad ruta på ett flerfamiljshus, säger Mikael Pettersson, RLC-befäl hos polisen.
Using multiple genomic sequencing tests, TGen identified a specific non-polio enterovirus — EV-D68 — among at least four children, according to a new study. The finding is significant because AFM cases are continuing to increase and there has been no official recognition that this disease is being caused by EV-D68, which limits the research community's ability to develop preventative measures, s
Doctors in intensive care units face a continual dilemma: Every blood test they order could yield critical information, but also adds costs and risks for patients. To address this challenge, researchers are developing a computational approach to help clinicians more effectively monitor patients' conditions and make decisions about the best opportunities to order lab tests for specific patients.
Populations of coastal cutthroat trout and coastal giant salamanders in the Pacific Northwest show the ability to rebound quickly from drought conditions, buying some time against climate change.
Positive interactions on social media are not making young adults feel more connected, whereas negative experiences increase the likelihood of them reporting loneliness.
How fast the universe is expanding has been puzzling astronomers for almost a century. Different studies keep coming up with different answers — which has some researchers wondering if they've overlooked a key mechanism in the machinery that drives the cosmos. Now, by pioneering a new way to measure how quickly the cosmos is expanding, a team led by UCLA astronomers has taken a step toward resolv
Using a tool first used for strep throat in horses, Houston Methodist researchers unveiled the secret life of flesh-eating bacteria, learning how it causes severe disease while living deep within muscle. The team focused on necrotizing myositis. The study appears Jan. 22 in the Journal of Clinical Investigation. Corresponding author James M. Musser says his team now has an in-depth understanding o
The second episode of our new "Community Neuroscience" series is now up on the Dana Foundation YouTube channel ! In this video, Dana Alliance for Brain Initiatives member Michael Burman , Ph.D., offers tips on how to organize a successful brain fair for the public. Burman is an associate professor at the University of New England (UNE), as well as Neuroscience K-12 Outreach Coordinator at its Cen
Google created an eight-question, interactive quiz that takes users through a number of phishing scenarios and tests whether they can tell when a hypothetical attack is real or not.
The proportion of those polled who say global warming is "personally important" to them jumped from 63 to 72 percent last year. (Image credit: Josh Edelson/AFP/Getty Images)
Drug Rats Once a drug addiction takes hold, staying clean can be just as hard as getting clean in the first place — as many as 70 percent of cocaine users relapse within 90 days. Now, researchers from the University of Pittsburgh think they've found a way to prevent relapse that sounds like a side plot in "Eternal Sunshine of the Spotless Mind." By erasing memories linked to cocaine use, they dec
What happens to sex pheromones as new species emerge? New research studies sex pheromones in the fission yeast Schizosaccharomyces pombe, revealing an 'asymmetric' pheromone recognition system in which one pheromone operates extremely stringently whereas the other pheromone is free to undergo a certain degree of diversification, perhaps leading to a first step towards speciation.
A research team presents a noninvasive light-sensitive photoactivatable recombinase suitable for genetic manipulation in vivo. The highly light-sensitive property of photoactivatable Flp recombinase will be ideal for controlling genetic manipulation in deep mouse brain regions by illumination with a noninvasive light-emitting diode. This easy-to-use optogenetic module will provide a side-effect fr
KÖPENHAMN. Han friades från bombdådet mot en shiamuslimsk moské i Malmö. Nu står den misstänkte 31-årige IS-anhängaren Moyed al-Zoebi åter inför rätta. Den här gången i Köpenhamn där han misstänks ha planerat ett terrorattentat.
The first direct air capture and storage plant in the world is powered by geothermal heat in Iceland. Is it enough to reach negative carbon emissions? To learn more, read the story here. — Read more on ScientificAmerican.com
Borrningsarbetet för att nå fram till den tvåårige pojke som föll ner i en djup brunn i Spanien gick under tisdagen in i ett avgörande skede, men stötte återigen på problem som nu fördröjer processen ytterligare.
Diseases such as multiple sclerosis are characterized by damage to the 'myelin sheath', a protective covering wrapped around nerve cells akin to insulation around an electrical wire. Researchers have discovered how the body initiates repair mechanisms which will limit the extent of any damage to this sheath. Their findings may provide a basis for the development of new drugs to treat multiple scle
Guest commentary from Eric Guilyardi (IPSL) and Valérie Masson-Delmotte (IPSL/IPCC) [This is a translation of an article in Le Monde (Jan 11).] In recent weeks in France, there has been a profusion of articles about the "climate scientist blues" (Le Monde 21/Dec, JDD 9/Dec , France Info 26/Sep) , which has apparently affecting them "scientifically". This follows a spate of similar articles in the
Health Replace these "folklore strategies" with facts. A recent poll found that seven in 10 parents rely on "folklore strategies" to help their children avoid the worst of cold and flu season.
A diagnosis of prediabetes should be a warning for people to make lifestyle changes to prevent both full-blown diabetes and cardiovascular disease (CVD), according to scientists at Wake Forest School of Medicine.
Värmlänningen Johan Olofsson trivs i Skåne och har skrivit på ett nytt kontrakt med Malmö. Det firade 24-åringen med ett mål och en framspelning när skåningarna slog Djurgården med 3–1 hemma.
Emerging infectious diseases comprise a substantial fraction of important human infections, with potentially devastating global health and economic impacts. A 2008 paper in Nature described the emergence of no fewer than 335 infectious diseases in the global human population between 1940 and 2004. In the veterinary field, just as in the medical field, advanced molecular techniques and sophisticate
ClassDojo is one of the most popular education apps in the world. Its company estimates it is used by millions of teachers and children across 180 countries. Beneath its friendly exterior lie disturbing implications.
People with schizophrenia have a hard time integrating information about a reward — the size of the reward and the probability of receiving it — when assessing its value, according to a new study.
Det verkar som att Sharon Van Etten har ägnat hela tiden sen förra albumet åt att hitta nya saker att lägga till sin musik, ändå var den mer storslagen och dramatisk då.
Science doesn't consider Pluto a planet anymore, but some believe there's a still-undiscovered ninth planet out there tweaking the orbit of small planetoids. A new study calls into question that idea. The post New Study Casts Doubt on Planet Nine Hypothesis appeared first on ExtremeTech .
A team of scientists from Sechenov First Moscow State Medical University (MSMU) together with their colleagues from leading scientific centers of Moscow and India described a number of genetic mutations causing Usher syndrome (inherited deaf-blindness). They found previously unstudied unique mutations in investigated DNA regions. The results of the study were published in the Ophthalmic Genetics j
Technological advances have allowed psychological scientists to measure everything from cognitive impairments to everyday decision-making. Now, the scientists are using their research to inform tools, programs, and interventions that are helping to cultivate a healthier, happier, and more sustainable world. More than 25 psychological researchers address this question in a special issue of Perspect
Donald Trump's tweets notwithstanding, climate change could lead to a worst-case scenario of extreme snow storms against a backdrop of less snowpack overall.
Many wearable biosensors, data transmitters and similar tech advances for personalized health monitoring have now been "creatively miniaturized," says materials chemist Trisha Andrew at the University of Massachusetts Amherst, but they require a lot of energy, and power sources can be bulky and heavy. Now she and her Ph.D. student Linden Allison report that they have developed a fabric that can ha
Sänkta eller slopade ränteavdrag för bostäder har under de senaste åren regelbundet föreslagits för att komma till bukt med hushållens bolåneskulder. Men de goda argumenten är få och konsekvenserna kan bli stora, skriver Robert Boije, chefsekonom på SBAB på DN Debatt, och varnar för kraftigt fallande bostadspriser.
Carbon Capture When vehicles and power plants burn fossil fuels, they release carbon dioxide into the atmosphere — trapping energy from the S un and warming the planet . Some researchers have suggested that the world could fight climate change by investing in machines that capture carbon from the air. A practical solution remains years away, but researchers in South Korea and Georgia now say they
Researchers are trying to shift Mexico's oyamel firs to higher elevations to help them weather warming temperatures — Read more on ScientificAmerican.com
Malaria research should focus not just on mosquitoes, but also on the behavior of humans they infect, a new study suggests. What people do at night, when the risk of infected mosquito bites is highest, is especially critical, the authors say. There is substantial research into when malaria mosquitoes bite, when they are most active, and which species are most likely to spread disease, says April
Vad är en Guldboll värd? Ronnie Hellström tog med sina två dyrgripar till SVT:s "Antikrundan" för att få svar. Men han skulle aldrig sälja dem. – Absolut inte, säger målvaktslegendaren.
A new method to measure the temperature of atoms during the explosive death of a star will help scientists understand the shock wave that occurs as a result of this supernova explosion.
Researchers have discovered that the human mutation rate is significantly slower than for our closest primate relatives. The new knowledge may be important for estimates of when the common ancestor for humans and chimpanzees lived — and for conservation of large primates in the wild.
Beijing Daxing International Airport is a massive complex built on the outskirts of Beijing, China, from more than 220,000 tons of steel, with a price tag nearing 14 billion U.S. dollars, and is set for completion in September 2019. The new facility—billed as the world's largest single-terminal airport—will be Beijing's second international airport, and developers hope it will relieve pressure on
Greece's government has removed hundreds of archaeological museums, ancient sites and castles inadvertently put on a provisional list of properties up for private development under the country's bailout terms.
Populations of coastal cutthroat trout and coastal giant salamanders in the Pacific Northwest show the ability to rebound quickly from drought conditions, new research by Oregon State University suggests.
A new approach to treating Alzheimer's disease may make it possible to eventually reverse memory loss, a new study shows. When researchers focused on gene changes that epigenetics—rather than DNA sequences—cause, it was possible to reverse memory decline in mice. "In this paper, we have not only identified the epigenetic factors that contribute to the memory loss, we also found ways to temporaril
Using multiple genomic sequencing tests, TGen identified a specific non-polio enterovirus — EV-D68 — among at least four children, according to a study published today in the scientific journal mBio. The finding is significant because AFM cases are continuing to increase and there has been no official recognition that this disease is being caused by EV-D68, which limits the research community's
Many wearable biosensors, data transmitters and similar tech advances for personalized health monitoring have now been 'creatively miniaturized,' says materials chemist Trisha Andrew at the University of Massachusetts Amherst, but they require a lot of energy, and power sources can be bulky and heavy. Now she and her Ph.D. student Linden Allison report that they have developed a fabric that can ha
Populations of coastal cutthroat trout and coastal giant salamanders in the Pacific Northwest show the ability to rebound quickly from drought conditions, new research by Oregon State University suggests.
DAVOS. Donald Trump deltar inte på årets Världsekonomiska forum, vilket har gett Brasiliens nyvalde högerpopulistiska president en plats i rampljuset. I sitt tal i Davos valde Jair Bolsonaro samma tema som Trump gjorde förra året; att hans land ska bli mer näringslivsvänligt och öppnare för investeringar.
Trots att klimatfrågan tar större plats än någonsin under årets ekonomiska toppmöte i Davos väljer många deltagare att flyga privatjet till den schweiziska orten, skriver The Guardian. Enligt experter handlar det om uppemot 1.500 plan.
A new study is beginning to pick apart how bizarre zombie-like microbes survive by examining their source of 'food' — nearby molecules of organic carbon. The study helps further our understanding of the limitations of life on Earth and could help inform how life might exist on other planets.
Using a new computational method, an international collaboration has succeeded for the first time in systematically investigating magnetic quantum effects in the well-known 3D pyrochlore Heisenberg model. The surprising finding: physical quantum phases are formed only for small spin values.
Corals know how to attract good company. New research finds that corals emit an enticing fluorescent green light that attracts the mobile microalgae, known as Symbiodinium, that are critical to the establishment of a healthy partnership.
The DNA replication process, which takes place every time a cell divides, also triggers repair of DNA damage, researchers have described in a new study. Scientists have studied extracts from frog eggs, whose proteins are very similar to those of human cells. The researchers hope the new research results can be used to develop more effective treatments for cancer in the long run.
Environment Cloud seeding could reduce particulate matter over Bangkok. Cloud seeding is an unproven practice. But Bangkok's air quality is bad enough, the Thai government has decided to try it.
Visualizing your significant other may be just as effective as having them in the room with you when it comes to managing the body's cardiovascular response to stressful situations, according to a University of Arizona study.
The Trump administration's proposal to require pharmaceutical companies to publish drug prices in TV ads is unlikely to help control drug prices, according to a study publishing Jan. 22, 2019, in JAMA Internal Medicine. The research found that consumer demand for high-priced drugs declined unless the drug ads included language explaining that the medication would be low-cost or no-cost because of
Children with a history of prior dengue virus infection had a significantly lower risk of being symptomatic when infected by Zika virus, according to a study in Nicaragua of more than 3,000 children aged 2 to 14 years. Experts have worried that prior dengue virus infection could exacerbate severe Zika disease. However, the new findings, published in PLOS Medicine, indicate that prior dengue immuni
Populations of coastal cutthroat trout and coastal giant salamanders in the Pacific Northwest show the ability to rebound quickly from drought conditions, buying some time against climate change.
France will require telecommunications companies to allow more government oversight and control of the equipment required for next-generation 5G wireless networks due to security concerns, a government official said Tuesday.
Over 650,000 registered financial advisers in the United States help manage over $30 trillion of investible assets and represent approximately 10% of total employment of the finance and insurance sector. However, despite their prevalence and importance, financial advisers are often perceived as dishonest and consistently rank among the least trustworthy professionals, a perception shaped by highly
CRISPR-baby scientist fired by university CRISPR-baby scientist fired by university, Published online: 22 January 2019; doi:10.1038/d41586-019-00246-2 Investigation by Chinese authorities finds He Jiankui broke national regulations in his controversial work on gene-edited babies.
India's LIGO gravitational-wave observatory gets green light India's LIGO gravitational-wave observatory gets green light, Published online: 22 January 2019; doi:10.1038/d41586-019-00184-z The US$177-million observatory will join a global network or sensors and should improve sensitivity.
Den mest turbulenta perioden i svensk politik på mycket länge är till ända. Löften har svikits, gamla allianser spruckit och nya uppstått. Ändå ligger partiernas väljarstöd relativt stabilt. – Sedan valet är det S som är vinnaren och M förloraren, säger Nicklas Källebring på Ipsos.
"Dear Noortje: Why, I sometimes wonder, do so many love letters start with 'I meant to write sooner,' or 'I should write to you more often,' or a more fanciful variation of the same?" reads a young man in Tara Fallaux 's short film. "Maybe because people are lazy and, in their daily lives, easily find an excuse for that laziness," the man ventures, "while it's harder to justify on paper. Maybe th
In Los Angeles, more than 30,000 teachers remain on strike; it took union and city officials more than a week to eke out a tentative agreement that, they announced Tuesday morning, will likely bring them back to their classrooms this week. Last Friday, teachers from a handful of public schools in Oakland, California, staged a one-day walkout, too, and they're planning for another demonstration th
Driverless in Michigan Alphabet-owned driverless car company Waymo has received approval from the Michigan Economic Development Corporation to build an autonomous vehicle factory in the state. In a Medium post , Waymo claims its factory will be the first in the world that's entirely dedicated to the mass production of driverless vehicles. The company has yet to identify an exact location for its
Over 650,000 registered financial advisers in the United States help manage over $30 trillion of investible assets and represent approximately 10 percent of total employment of the finance and insurance sector. However, despite their prevalence and importance, financial advisers are often perceived as dishonest and consistently rank among the least trustworthy professionals, a perception shaped by
Researchers have shown, for the first time, that manure used to fertilize croplands in spring and summer can dramatically increase greenhouse gas emissions in winter. While it's known that farmers' decisions to add nutrients to their fields affects greenhouse gas emissions during the growing season, the study is the first to show that these choices have long-lasting effects, especially as winters
Doctors in intensive care units face a continual dilemma: Every blood test they order could yield critical information, but also adds costs and risks for patients. To address this challenge, researchers from Princeton University are developing a computational approach to help clinicians more effectively monitor patients' conditions and make decisions about the best opportunities to order lab tests
A prior dengue virus infection could protect children from symptomatic Zika virus infection, according to a study by an international group of researchers including those from the University of Michigan and the University of California, Berkeley.
Previous infection with dengue virus may protect children from symptomatic Zika, according to a study published Jan. 22 in the open-access journal PLOS Medicine by Eva Harris of the University of California, Berkeley, and colleagues.
There is an undeniable link among opioid marketing, opioid prescription rates, and deaths related to opioid overdoses in the United States, according to a new study. Compiling data county by county across the nation, the study paints a stark picture of the connection between the number of drug marketing interactions per county and the number of people in that county who eventually die from opioid
Edgar Allan Poe (1809–1949) is considered one of America's great writers. Poe penned his most famous poem, The Raven , in his 30s. Originally, the poem's feathered subject was a bit flamboyant. None By his mid-30s, Edgar Allan Poe was not only weary by the hardships of poverty, but also regularly intoxicated — by more than just macabre visions. Despite this, the Gothic writer lucidly insisted tha
Many organisms including insects, amphibians and yeasts use sex pheromones for attracting individuals of the opposite sex, but what happens to sex pheromones as new species emerge? New research publishing January 22 in the open-access journal PLOS Biology from Taisuke Seike and Hironori Niki at the National Institute of Genetics, Japan and Chikashi Shimoda at Osaka City University, Japan studies s
Det var årets första landskamp. Det märktes. Sverige fick bara med sig 0–0 från bortamötet med Sydafrika i förberedelserna inför sommarens fotbolls-VM. – Det var inte så värst bra spel, sade landslagsstjärnan Olivia Schough.
Epigenetic Factors Your DNA sequence never changes. But the expression of your genes changes throughout your life, and the elements affecting these changes are known as epigenetic factors . Now, scientists believe they have identified an epigenetic factor that causes memory loss in people with Alzheimer's disease. Their other claim is explosive: that they've found a way to reverse memory loss in
Using a specially designed camera, researchers have succeeded for the first time in recreating how birds see colors in their surroundings. The study reveals that birds see a very different reality compared to what we see.
Many organisms including insects, amphibians and yeasts use sex pheromones for attracting individuals of the opposite sex, but what happens to sex pheromones as new species emerge? New research publishing January 22 in the open-access journal PLOS Biology from Taisuke Seike and Hironori Niki at the National Institute of Genetics, Japan and Chikashi Shimoda at Osaka City University, Japan studies s
DNA methylation and orange fruit ripening Sweet orange fruits at 90–210 days after bloom (Left to Right). Tomatoes ripen according to a complex developmental process regulated by active DNA demethylation and an associated genome-wide loss of DNA methylation. Whether global DNA demethylation contributes to ripening in other fruits remains unclear….
Researchers' understanding of cellular physiology has evolved over time with the identification of internal cell structures. Organelles, large and small, are key to cellular function and response to external stimuli. Harvard Medical School professor of structural biology Hao Wu, elected to the National Academy of Sciences in 2015, uses protein…
Social dominance hierarchies are common in human and nonhuman animals and profoundly affect the behavior, health, and well-being of every member of a community. Research on diverse species has expanded our understanding of how ecological and social forces shape interactions influencing social status, behavior, and the underlying biology (1, 2)….
In PNAS, Shao et al. (1) report a spectroscopic search for line degeneracies in the electronic bands of NbAs2, a topological semimetal (TSM). TSMs have attracted great interest recently as exemplars of the emergent physics that can arise in quantum condensed matter (2). They host quasiparticle excitations that cannot occur…
In PNAS, Kaplanov et al. (1) report on how IL-1β orchestrates recruitment of immunosuppressive monocytes and their polarization in IL-10–producing macrophages during tumor development. This mechanism consequently inhibits and limits CD8+ T cell-driven immune responses and enables tumor outgrowth. Therapeutic blockade of IL-1β and inhibition of monocyte recruitment synergized and…
UVR8 is a plant photoreceptor protein that regulates photomorphogenic and protective responses to UV light. The inactive, homodimeric state absorbs UV-B light, resulting in dissociation into monomers, which are considered to be the active state and comprise a β-propeller core domain and intrinsically disordered N- and C-terminal tails. The C…
The Great Unconformity, a profound gap in Earth's stratigraphic record often evident below the base of the Cambrian system, has remained among the most enigmatic field observations in Earth science for over a century. While long associated directly or indirectly with the occurrence of the earliest complex animal fossils, a…
Prostate cancer and benign prostatic hyperplasia are common genitourinary diseases in aging men. Both pathologies may coexist and share numerous similarities, which have suggested several connections or some interplay between them. However, solid evidence confirming their existence is lacking. Recent studies on extensive series of prostatectomy specimens have shown that…
In a collisionless, magnetized plasma, particles may stream freely along magnetic field lines, leading to "phase mixing" of their distribution function and consequently, to smoothing out of any "compressive" fluctuations (of density, pressure, etc.). This rapid mixing underlies Landau damping of these fluctuations in a quiescent plasma—one of the most…
Low social status is an important predictor of disease susceptibility and mortality risk in humans and other social mammals. These effects are thought to stem in part from dysregulation of the glucocorticoid (GC)-mediated stress response. However, the molecular mechanisms that connect low social status and GC dysregulation to downstream health…
Neutropenia represents an important problem in patients with genetic deficiency in either the glucose-6-phosphate transporter of the endoplasmic reticulum (G6PT/SLC37A4) or G6PC3, an endoplasmic reticulum phosphatase homologous to glucose-6-phosphatase. While affected granulocytes show reduced glucose utilization, the underlying mechanism is unknown and causal therapies are lacking. Using a combin
In vitro, purified replisomes drive model replication forks to synthesize continuous leading strands, even without ligase, supporting the semidiscontinuous model of DNA replication. However, nascent replication intermediates isolated from ligase-deficient Escherichia coli comprise only short (on average 1.2-kb) Okazaki fragments. It was long suspected that cells replicate their chromosomal DNA…
The protein acyl transferase ZDHHC5 was recently proposed to regulate trafficking in the endocytic pathway. Therefore, we explored the function of this enzyme in controlling the action of bacterial toxins. We found that ZDHHC5 activity is required for two very different toxins: the anthrax lethal toxin and the pore-forming toxin…
Macropinocytosis and phagocytosis are evolutionarily conserved forms of bulk endocytosis used by cells to ingest large volumes of fluid and solid particles, respectively. Both processes are regulated by Ras signaling, which is precisely controlled by mechanisms involving Ras GTPase activating proteins (RasGAPs) responsible for terminating Ras activity on early endosomes….
Ubiquitin fold modifier 1 (UFM1) is a small, metazoan-specific, ubiquitin-like protein modifier that is essential for embryonic development. Although loss-of-function mutations in UFM1 conjugation are linked to endoplasmic reticulum (ER) stress, neither the biological function nor the relevant cellular targets of this protein modifier are known. Here, we show that…
Calcium-activated phospholipid scramblase mediates the energy-independent bidirectional translocation of lipids across the bilayer, leading to transient or, in the case of apoptotic scrambling, sustained collapse of membrane asymmetry. Cells lacking TMEM16F-dependent lipid scrambling activity are deficient in generation of extracellular vesicles (EVs) that shed from the plasma membrane in a…
Human endogenous retrovirus-K (HERV-K) human mouse mammary tumor virus-like 2 (HML-2) is the most recently active endogenous retrovirus group in humans, and the only group with human-specific proviruses. HML-2 expression is associated with cancer and other diseases, but extensive searches have failed to reveal any replication-competent proviruses in humans. However,…
Retinitis pigmentosa (RP) is an inherited retinal degenerative disease with severe vision impairment leading to blindness. About 10–15% of RP cases are caused by mutations in the RPGR gene, with RPGR mutations accounting for 70% of X-linked RP cases. The mechanism by which RPGR mutations cause photoreceptor cell dysfunction is…
Interleukin-1β (IL-1β) is abundant in the tumor microenvironment, where this cytokine can promote tumor growth, but also antitumor activities. We studied IL-1β during early tumor progression using a model of orthotopically introduced 4T1 breast cancer cells. Whereas there is tumor progression and spontaneous metastasis in wild-type (WT) mice, in IL-1β–deficient…
Breast cancers enduring treatment with chemotherapy may be enriched for cancer stem cells or tumor-initiating cells, which have an enhanced capacity for self-renewal, tumor initiation, and/or metastasis. Breast cancer cells that express the type I tyrosine kinaselike orphan receptor ROR1 also may have such features. Here we find that the…
Upon virus infection, pluripotent stem cells neither induce nor respond to canonical type I interferons (IFN-I). To better understand this biology, we characterized induced pluripotent stem cells (iPSCs) as well as their differentiated parental or rederived counterparts. We confirmed that only iPSCs failed to respond to viral RNA, IFN-I, or…
The factors and mechanisms that govern tRNA stability in bacteria are not well understood. Here, we investigated the influence of posttranscriptional modification of bacterial tRNAs (tRNA modification) on tRNA stability. We focused on ThiI-generated 4-thiouridine (s4U), a modification found in bacterial and archaeal tRNAs. Comprehensive quantification of Vibrio cholerae tRNAs…
A person's decisions vary even when options stay the same, like when a gambler changes bets despite constant odds of winning. Internal bias (e.g., emotion) contributes to this variability and is shaped by past outcomes, yet its neurobiology during decision-making is not well understood. To map neural circuits encoding bias,…
The interorganelle communication mediated by membrane contact sites (MCSs) is an evolutionary hallmark of eukaryotic cells. MCS connections enable the nonvesicular exchange of information between organelles and allow them to coordinate responses to changing cellular environments. In plants, the importance of MCS components in the responses to environmental stress has…
DNA methylation is an important epigenetic mark involved in many biological processes. The genome of the climacteric tomato fruit undergoes a global loss of DNA methylation due to active DNA demethylation during the ripening process. It is unclear whether the ripening of other fruits is also associated with global DNA…
Multiagent activity is commonplace in everyday life and can improve the behavioral efficiency of task performance and learning. Thus, augmenting social contexts with the use of interactive virtual and robotic agents is of great interest across health, sport, and industry domains. However, the effectiveness of human–machine interaction (HMI) to effectively…
While the aggregate differentiation of the hematopoietic stem cell (HSC) population has been extensively studied, little is known about the lineage commitment process of individual HSC clones. Here, we provide lineage commitment maps of HSC clones under homeostasis and after perturbations of the endogenous hematopoietic system. Under homeostasis, all donor-derived…
The last decade has seen broad exploratory research into stratospheric aerosol (SA) geoengineering, motivated by concern that reducing greenhouse gas emissions may be insufficient to avoid significant impacts from climate change. Based on this research, it is plausible that a limited deployment of SA geoengineering, provided it is used in…
We present electrophysiological (EP) signals correlated with cellular cell activities in the adrenal cortex and medulla using an adrenal gland implantable flexible EP probe. With such a probe, we could observe the EP signals from the adrenal cortex and medulla in response to various stress stimuli, such as enhanced hormone…
The exact superconducting phase of K2−xFe4+ySe5 has so far not been conclusively decided since its discovery due to its intrinsic multiphase in early material. In an attempt to resolve this mystery, we have carried out systematic structural studies on a set of well-controlled samples with exact chemical stoichiometry K2−xFe4+xSe5 (x…
Thermodynamic properties of liquid water as well as hexagonal (Ih) and cubic (Ic) ice are predicted based on density functional theory at the hybrid-functional level, rigorously taking into account quantum nuclear motion, anharmonic fluctuations, and proton disorder. This is made possible by combining advanced free-energy methods and state-of-the-art machine-learning techniques….
Here we describe a DNA analog in which the mesyl (methanesulfonyl) phosphoramidate group is substituted for the natural phosphodiester group at each internucleotidic position. The oligomers show significant advantages over the often-used DNA phosphorothioates in RNA-binding affinity, nuclease stability, and specificity of their antisense action, which involves activation of cellular…
Lysine methylation, catalyzed by protein lysine methyltransferases (PKMTs), is a key player in regulating intracellular signaling pathways. However, the role of PKMTs and the methylation of nonhistone proteins during the cell cycle are largely unexplored. In a recent proteomic screen, we identified that the PKMT SETD6 methylates PLK1—a key regulator…
Antibodies are created and refined by somatic evolution in B cell populations, which endows the human immune system with the ability to recognize and eliminate diverse pathogens. However, the evolutionary processes that sculpt antibody repertoires remain poorly understood. Here, using an unbiased repertoire-scale approach, we show that the population genetic…
Rac1 activation is at the core of signaling pathways regulating polarized cell migration. So far, it has not been possible to directly explore the structural changes triggered by Rac1 activation at the molecular level. Here, through a multiscale imaging workflow that combines biosensor imaging of Rac1 dynamics with electron cryotomography,…
We report crystal structures of the antibacterial lasso peptides microcin J25 (MccJ25) and capistruin (Cap) bound to their natural enzymatic target, the bacterial RNA polymerase (RNAP). Both peptides bind within the RNAP secondary channel, through which NTP substrates enter the RNAP active site, and sterically block trigger-loop folding, which is…
The much-ballyhooed artificial intelligence approach boasts impressive feats but still falls short of human brainpower. Researchers are determined to figure out what's missing. There's no mistaking the image: It's a banana—a big, ripe, bright-yellow banana. Yet the artificial intelligence (AI) identifies it as a toaster, even though it was trained…
The Drosophila protocadherin Fat controls organ size through the Hippo pathway, but the biochemical links to the Hippo pathway components are still poorly defined. We previously identified Dlish, an SH3 domain protein that physically interacts with Fat and the type XX myosin Dachs, and showed that Fat's regulation of Dlish…
Most of the excess energy stored in the climate system due to anthropogenic greenhouse gas emissions has been taken up by the oceans, leading to thermal expansion and sea-level rise. The oceans thus have an important role in the Earth's energy imbalance. Observational constraints on future anthropogenic warming critically depend…
Indirect evidence for the presence of a felsic continental crust, such as the elevated 49Ti/47Ti ratios in Archean shales, has been used to argue for ongoing subduction at that time and therefore plate tectonics. However, rocks of intermediate to felsic compositions can be produced in both plume and island arc…
Recent studies have shown that phytoliths are softer than dental enamel but still act as abrasive agents. Thus, phytolith content should be reflected in dental wear. Because native phytoliths show lower indentation hardness than phytoliths extracted by dry ashing, we propose that the hydration state of plant tissue will also…
We use updated drainage inventory, ice thickness, and ice velocity data to calculate the grounding line ice discharge of 176 basins draining the Antarctic Ice Sheet from 1979 to 2017. We compare the results with a surface mass balance model to deduce the ice sheet mass balance. The total mass…
Social monogamy, typically characterized by the formation of a pair bond, increased territorial defense, and often biparental care, has independently evolved multiple times in animals. Despite the independent evolutionary origins of monogamous mating systems, several homologous brain regions and neuropeptides and their receptors have been shown to play a conserved…
Analysis of "big data" frequently involves statistical comparison of millions of competing hypotheses to discover hidden processes underlying observed patterns of data, for example, in the search for genetic determinants of disease in genome-wide association studies (GWAS). Controlling the familywise error rate (FWER) is considered the strongest protection against false…
We have identified a GRAP variant (c.311A>T; p.Gln104Leu) cosegregating with autosomal recessive nonsyndromic deafness in two unrelated families. GRAP encodes a member of the highly conserved growth factor receptor-bound protein 2 (GRB2)/Sem-5/drk family of proteins, which are involved in Ras signaling; however, the function of the growth factor receptor-bound protein…
Acinetobacter baumannii (Ab) is a nosocomial pathogen with one of the highest rates of multidrug resistance (MDR). This is partially due to transmissible plasmids. Many Ab strains harbor a constitutively active type VI secretion system (T6SS) that is employed to kill nonkin bacteria. T6SS and plasmid conjugation both involve cell-to-cell…
Onchocerciasis and lymphatic filariasis are two neglected tropical diseases that together affect ∼157 million people and inflict severe disability. Both diseases are caused by parasitic filarial nematodes with elimination efforts constrained by the lack of a safe drug that can kill the adult filaria (macrofilaricide). Previous proof-of-concept human trials have…
Using polarized optical and magneto-optical spectroscopy, we have demonstrated universal aspects of electrodynamics associated with Dirac nodal lines that are found in several classes of unconventional intermetallic compounds. We investigated anisotropic electrodynamics of NbAs2 where the spin-orbit coupling (SOC) triggers energy gaps along the nodal lines. These gaps manifest as…
When deposited on a hot bath, volatile drops are observed to stay in levitation: the so-called Leidenfrost effect. Here, we discuss drop dynamics in an inverse Leidenfrost situation where room-temperature drops are deposited on a liquid-nitrogen pool and levitate on a vapor film generated by evaporation of the bath. In…
We study the kinetics of crystal growth and melting of two types of colloidal crystals: body-centered cubic (BCC) crystals and face-centered cubic (FCC) crystals. A dielectrophoretic "electric bottle" confines colloids, enabling precise control of the motion of the interface. We track the particle motion, and by introducing a structural order…
Police departments use body-worn cameras (body cams) and dashboard cameras (dash cams) to monitor the activity of police officers in the field. Video from these cameras informs review of police conduct in disputed circumstances, often with the goal of determining an officer's intent. Eight experiments (N = 2,119) reveal that…
The sense that one is living a worthwhile and meaningful life is fundamental to human flourishing and subjective well-being. Here, we investigate the wider implications of feeling that the things one does in life are worthwhile with a sample of 7,304 men and women aged 50 and older (mean 67.2…
Our work explores the prospect of bringing the temporal production profile of solar photovoltaics (PV) into better correlation with typical electricity consumption patterns in the midlatitudes. To do so, we quantify the potential of three choices for PV installations that increase production during the winter months when electricity is most…
Tracking the progress of the Sustainable Development Goals (SDGs) and targeting interventions requires frequent, up-to-date data on social, economic, and ecosystem conditions. Monitoring socioeconomic targets using household survey data would require census enumeration combined with annual sample surveys on consumption and socioeconomic trends. Such surveys could cost up to $253…
COLLOQUIUM Correction for "Changing demographics of scientific careers: The rise of the temporary workforce," by Staša Milojević, Filippo Radicchi, and John P. Walsh, which was first published December 11, 2018; 10.1073/pnas.1800478115 (Proc Natl Acad Sci USA 115:12616–12623). The authors note that a reference was omitted from the article. The complete…
BIOCHEMISTRY Correction for "ZFAND5/ZNF216 is an activator of the 26S proteasome that stimulates overall protein degradation," by Donghoon Lee, Shinichi Takayama, and Alfred L. Goldberg, which was first published September 25, 2018; 10.1073/pnas.1809934115 (Proc Natl Acad Sci USA 115:E9550–E9559). The authors note that the following statement should be added as…
BIOCHEMISTRY Correction for "UBL domain of Usp14 and other proteins stimulates proteasome activities and protein degradation in cells," by Hyoung Tae Kim and Alfred L. Goldberg, which was first published November 28, 2018; 10.1073/pnas.1808731115 (Proc Natl Acad Sci USA 115:E11642–E11650). The authors note that the following statement should be added…
MEDICAL SCIENCES Correction for "The genome landscape of ERα- and ERβ-binding DNA regions," by Yawen Liu, Hui Gao, Troels Torben Marstrand, Anders Ström, Eivind Valen, Albin Sandelin, Jan-Åke Gustafsson, and Karin Dahlman-Wright, which was first published February 19, 2008; 10.1073/pnas.0712085105 (Proc Natl Acad Sci USA 105:2604–2609). The authors wish to…
Keeping track of who wears which costume, the location of soccer cleats and what is in the pantry are all examples invisible labor, or the mental and emotional effort required of mothers as they raise children and manage households. Researchers quantified the prevalence and impact of invisible labor. Feeling solely responsible for the household and children strained mothers' well-being and decreas
Testing blood levels of a protein that brain cells leak when faulty or dying detected people with Alzheimer's disease years before their symptoms emerged.
Det finns olika sätt att förbereda sig inför ett OS. Den amerikanske skandalsimmaren Ryan Lochte har valt ett mer udda sådant. Ryan Lochte är en av deltagarna i tv-programmet "Big Brother", men det finns en pool i huset som gör det möjligt för honom att fortsätta att träna.
According to a new study, women who communicate regularly with a female-dominated inner circle are more likely to attain high-ranking leadership positions.
The complex sugars found in human breastmilk, long believed to be fixed in their composition, may change in women who are taking probiotics, according to new research.
The study is the first to track the timing of 12 geographically distinct breeding populations of tree swallows across the continent. Researchers measured how long birds spent at breeding grounds to raise their young, when they began migration and stopped to refuel, and when they arrived at wintering grounds. Understanding when birds move between breeding and wintering sites, and how different popu
A new, simple, and inexpensive method that uses ultraviolet light to control particle motion and assembly within liquids could improve drug delivery, chemical sensors, and fluid pumps.
A commonly held belief among the general public is orthodontic treatment will prevent future tooth decay. Research has found that this is not the case.
A signaling pathway controlled by transforming growth factor beta (TGF-beta) could be involved in the progression of age-related macular degeneration (AMD).
New research confirms that the vast majority of force on the bone is actually from muscles contracting, not from the foot's impact on the ground, a finding both the wearables industry and many scientific studies have overlooked. It starts as a persistent and irritating pain in the foot or lower leg, then it gets more intense, maybe with swelling, and soon a runner knows she's facing one of the mo
Thousands turn out to support science in Italy's stricken olive region Thousands turn out to support science in Italy's stricken olive region, Published online: 22 January 2019; doi:10.1038/d41586-019-00224-8 Anti-science sentiment has hampered efforts to contain the spread of a devastating olive-tree disease.
Väktare grep tag i Jöns Hellsing på väg ut från Åhléns, "halvsläpade" honom genom varuhuset och anklagade honom för snatteri – trots att han precis betalat för varorna. Åhléns erbjudande som plåster på såren: Köpa varor för 3.000 kronor med en "personal shopper". – Sorry. Min stolthet tillåter inte det, säger Jöns Hellsing om erbjudandet.
The hagfish dates back at least 300 million years. The secret of survival for these eel-like sea creatures can be found in the rate and volume of slime it produces to fend off predators.
Researchers have demonstrated for the first time how two molecular strategies can safeguard CRISPR gene-drive experiments in the lab, according to a new study.
A new study looks at the job satisfaction of front line conservation rangers working in challenging conditions at a national park in the eastern Democratic Republic of the Congo (DRC) and identifies ways to improve motivation to make them more effective at enforcing the law.
Scientists predict that certain regions of the United States will experience higher levels of pollutants that cause smog, acid rain and respiratory problems due changes in forest soils from climate change.
Prions can infect both humans and animals, causing Creutzfeldt-Jakob disease (CJD) in humans, mad cow disease in cattle, and chronic wasting disease in elk and deer. The infectious, misfolded protein particles often go undetected as they destroy brain tissue, causing memory loss, mobility issues, and ultimately death. Preclinical detection of prions has proven difficult, but new research suggests
Wherever possible, researchers should not just focus on mosquito behavior when working to eliminate malaria, but must also consider how humans behave at night when the risk of being bitten by an infected mosquito is highest.
Using a specially designed camera, researchers have succeeded for the first time in recreating how birds see colors in their surroundings. The study reveals that birds see a very different reality compared to what we see.
Sveriges nya idrottsminister vill ge barn och unga större chans att idrotta. Huruvida hon också vill ge OS-idrottare chansen på svensk mark återstår dock ännu att se. – Vi kommer behöva ett gediget beslutsunderlag innan vi landar i ett ställningstagande, säger Amanda Lind (MP) om den svenska OS-ansökan.
When it comes to health and wellness products, there are countless options available to consumers: health bars, juices, supplements, and nutritional shakes – just to name a few. The real challenge isn't finding the products, but rather figuring out which products are or aren't a waste of money. But there's something most consumers don't realize; it's even more of a challenge for the wellness comp
By his mid-30s, Edgar Allan Poe was not only weary by the hardships of poverty, but also regularly intoxicated — by more than just macabre visions. Despite this, the Gothic writer lucidly insisted that there was still a method to his madness when it came to devising poems. In an essay titled "The Philosophy of Composition," published in 1846 in Graham's Magazine , Poe divulged how his creative pr
A new book brings readers lesser known short stories by famed German writer and World War I veteran Erich Maria Remarque. Among the books that the Nazis banned and burned was All Quiet on the Western Front , a novel Remarque published in 1929. All Quiet follows Paul Bäumer, a German soldier fighting in the first World War, and describes in brutal detail the war's bloody horrors. In the book's epi
Publisher Correction: Magnetic and magnetic inverse spin Hall effects in a non-collinear antiferromagnet Publisher Correction: Magnetic and magnetic inverse spin Hall effects in a non-collinear antiferromagnet, Published online: 22 January 2019; doi:10.1038/s41586-019-0907-y Publisher Correction: Magnetic and magnetic inverse spin Hall effects in a non-collinear antiferromagnet
Author Correction: Direct observation of incommensurate magnetism in Hubbard chains Author Correction: Direct observation of incommensurate magnetism in Hubbard chains, Published online: 22 January 2019; doi:10.1038/s41586-019-0906-z Author Correction: Direct observation of incommensurate magnetism in Hubbard chains
Researchers have discovered biomarkers that may explain why symptoms of post-traumatic stress disorder can be so severe for some people and not for others. The study of combat veterans who have experienced intense events shows that those with severe symptoms of PTSD have distinct patterns of neurological and physiological responses affecting associative learning—the ability to distinguish between
What bioRxiv's first 30,000 preprints reveal about biologists What bioRxiv's first 30,000 preprints reveal about biologists, Published online: 22 January 2019; doi:10.1038/d41586-019-00199-6 More than 1 million studies are now downloaded from the site every month, mostly in neuroscience, bioinformatics and genomics.
A study from Indiana University has found that trees influence whether soil can remove or emit gases that cause smog, acid rain and respiratory problems.
A revolutionary technique developed by an astrophysicist at Rochester Institute of Technology could allow for a better understanding of the fates of solar systems when their stars cease to shine.
Damkronorna har haft en tuff ekonomisk verklighet. Inför vårens VM i Finland gör dock Svenska ishockeyförbundet en satsning på landslaget när de utökar ledartruppen med tre personer. – Genom det här beslutet skickar min arbetsgivare signalen att Damkronornas verksamhet är viktig, säger förbundskaptenen Ylva Martinsen.
New research from the University of New Hampshire finds that while youths with disabilities, mental health diagnoses and special education services experience peer harassment or bullying at similar rates as other youth, understanding differences in how they experience it may lead to solutions that minimize risk to all youth.
A new study by WCS looks at the job satisfaction of front line conservation rangers working in challenging conditions at a national park in the eastern Democratic Republic of the Congo (DRC) and identifies ways to improve motivation to make them more effective at enforcing the law.
A new, simple, and inexpensive method that uses ultraviolet light to control particle motion and assembly within liquids could improve drug delivery, chemical sensors, and fluid pumps. The method encourages particles—from plastic microbeads, to bacterial spores, to pollutants—to gather and organize at a specific location within a liquid and, if desired, to move to new locations. A paper describing
Researchers have discovered why many people with joint replacements experience harmful inflammation and bone loss. The findings could lead to new therapies to prevent pain and the need for follow-up surgeries. As many as 15 percent of joint replacements will fail, which can require revision surgery to replace the implant. Prosthetic devices can release microparticles—known as "wear debris"—that p
According to a new Notre Dame study, women who communicate regularly with a female-dominated inner circle are more likely to attain high-ranking leadership positions.
Providing less than an hour of help to an elderly person can take a surprising emotional toll on older caregivers, says a University of Michigan researcher.
Prions can infect both humans and animals, causing Creutzfeldt-Jakob disease (CJD) in humans, mad cow disease in cattle, and chronic wasting disease in elk and deer. The infectious, misfolded protein particles often go undetected as they destroy brain tissue, causing memory loss, mobility issues, and ultimately death. Preclinical detection of prions has proven difficult, but new research suggests
Scientists predict that certain regions of the United States will experience higher levels of pollutants that cause smog, acid rain and respiratory problems due changes in forest soils from climate change.
Researchers have carried out research in Southwest Cameroon to assess which proportion of forest would be necessary in order to provide sufficient habitat for rainforest bird species.
So-called bifacial stem cells are responsible for one of the most critical growth processes on Earth — the formation of wood. By alternately developing into wood and bast cells, these stem cells are thus starting points for forming wood as well as generating plant bast fibers. A team of researchers were recently able to demonstrate this phenomenon using new experimental tools.
A new study by WCS looks at the job satisfaction of front line conservation rangers working in challenging conditions at a national park in the eastern Democratic Republic of the Congo (DRC) and identifies ways to improve motivation to make them more effective at enforcing the law.
The fifth episode of Tidying Up With Marie Kondo , Netflix's effervescent new reality series, deals with Frank and Matt, a couple living in West Hollywood, California. Both writers, they have a touching love story involving Tinder, a too-small apartment filled with detritus from past roommates, and a burning desire to prove their adulting bona fides. They are, in short, the archetypal Millennial
Konstvärldens Indiana Jones har gjort det igen. Den nederländska konstforskaren Arthur Brand har återfunnit två spanska stenreliefer – täckta med löv och lera i en trädgård i Storbritannien.
Scientists are creating a new smartphone app to help farmers tackle the pests destroying their crops, and it could soon have a major impact on the way information about the natural world is gathered, stored and accessed worldwide.
New research finds that chaotic swings in the concentration of a certain protein is key for regulating our immune response and preventing chronic disease.
With a population between 10,000 and 30,000 in its heyday (A.D. 1050-1200) and a sprawling assortment of homes, storage buildings, temples, cemeteries, mounds and other monuments in and around what is now St. Louis and East St. Louis, Illinois, the ancient Native American city known as Greater Cahokia was the first experiment in urban living in North America.
A McGill-led international research team provides the first experimental and theoretical proof that it is possible to form strong, stable attractions between some of the heavier elements in the periodic table—such as arsenic or even antimony. Because hydrogen is not involved in creating the bond between these elements, these new materials should be resistant to water and humidity.
After slowly forming stars for the first few billion years of their lives, the Magellanic Clouds, near neighbors of our own Milky Way galaxy, have upped their game and are now forming new stars at a fast clip. This new insight into the history of the Clouds comes from the first detailed chemical maps made of galaxies beyond the Milky Way.
Inkilad mellan ett par bilar på parkeringen stod den svarta barnvagn som polisen i Göteborg letat frenetiskt efter. Ovetandes om uppståndelsen gick Jessica Samuelsson och hennes kollega fram och såg den lilla flickan ligga där. – Hon var till synes helt oskadd. Hon var glad och varm och supermysig, säger hon.
The world's current political climate is one where we are very aware of borders. They divide what we humans decide is one country, one state, one region from another. They can be very clearly defined where everyone would notice the boundary and in other cases, they are merely defined by imaginary lines we've projected on our planet. Much of the time, these boundaries are geologic — that is, they
A rapid rise in temperature on ancient Earth triggered a climate response that may have prolonged the warming for many thousands of years, according to scientists.
The quest for climate scientists to be able to bridge the gap between shorter-term seasonal forecasts and long-term climate projections is 'coming of age', a study shows.
A new study looks at the job satisfaction of front line conservation rangers working in challenging conditions at a national park in the eastern Democratic Republic of the Congo (DRC) and identifies ways to improve motivation to make them more effective at enforcing the law.
New research from the University of New Hampshire finds that while youths with disabilities, mental health diagnoses and special education services experience peer harassment or bullying at similar rates as other youth, understanding differences in how they experience it may lead to solutions that minimize risk to all youth.
A team of researchers based at the Universities of Oxford and Edinburgh have recreated for the first time the famous Draupner freak wave measured in the North Sea in 1995.
Researchers have demonstrated for the first time how two molecular strategies can safeguard CRISPR gene-drive experiments in the lab, according to a study published today in eLife.
The hagfish dates back at least 300 million years. The secret of survival for these eel-like sea creatures can be found in the rate and volume of slime it produces to fend off predators. Interestingly, the oldest fossils of these eel-like sea creatures, were found in Illinois, and today researchers from the University of Illinois at Urbana-Champaign are beginning to uncover the mystery of how the
Researchers of the Department of Conservation Biology at the University of Göttingen have carried out research in Southwest Cameroon to assess which proportion of forest would be necessary in order to provide sufficient habitat for rainforest bird species. The results of the study were published in the journal Biological Conservation.
A Ludwig Cancer Research study has uncovered a cellular mechanism by which melanomas that fail to respond to checkpoint blockade may be made susceptible to such immunotherapies.
Researchers at Stanley Manne Children's Research Institute at Ann & Robert H. Lurie Children's Hospital of Chicago, and colleagues, discovered a promising direction toward understanding the development of necrotizing enterocolitis (NEC), a devastating intestinal disease commonly affecting premature infants, in order to treat it.
A new, simple, and inexpensive method that uses ultraviolet light to control particle motion and assembly within liquids could improve drug delivery, chemical sensors, and fluid pumps.
The faint, ephemeral glow emanating from the planetary nebula ESO 577-24 persists for only a short time — around 10,000 years, a blink of an eye in astronomical terms. ESO's Very Large Telescope captured this shell of glowing ionized gas — the last breath of the dying star whose simmering remains are visible at the heart of this image. As the gaseous shell of this planetary nebula expands and gr
Researchers discovered that the more attention you give a cat, the more likely they are to return it. Cats are territorial; being in their home environment greatly affects their attitude. The common wisdom that cats are aloof is provably false. None This weekend, my wife and I visited the San Diego Zoo. Having grown up nearby, she visited often as a child, though it was my first time. While I gen
Although the company has made a few controversial decisions in the past, one thing Microsoft can't be accused of is ignoring the needs of those with physical or mental disabilities.
British electric appliance pioneer Dyson will switch headquarters to Singapore this year due to booming Asian demand but not because of Brexit, the company said Tuesday.
Positive interactions on social media are not making young adults feel more connected, whereas negative experiences increase the likelihood of them reporting loneliness.
So-called bifacial stem cells are responsible for one of the most critical growth processes on Earth — the formation of wood. By alternately developing into wood and bast cells, these stem cells are thus starting points for forming wood as well as generating plant bast fibres. A team of researchers under the direction of Dr Thomas Greb, a Heisenberg Professor at Heidelberg University, were recent
Researchers at University of California San Diego School of Medicine found that a diet low in free sugars (those added to foods and beverages and occurring naturally in fruit juices) resulted in significant improvement in nonalcoholic fatty liver disease (NAFLD) in adolescent boys.
Using a specially designed camera, researchers at Lund University in Sweden have succeeded for the first time in recreating how birds see colours in their surroundings. The study reveals that birds see a very different reality compared to what we see.
The study is the first to track the timing of 12 geographically distinct breeding populations of tree swallows across the continent. Researchers measured how long birds spent at breeding grounds to raise their young, when they began migration and stopped to refuel, and when they arrived at wintering grounds. Understanding when birds move between breeding and wintering sites, and how different popu
Good health literacy is associated with better adherence to blood pressure medications among Hispanic individuals with high blood pressure, finds a study by NYU Rory Meyers College of Nursing and Columbia University School of Nursing. However, the majority of this population lacks health literary and has poor adherence to their medications.
The complex sugars found in human breastmilk, long believed to be fixed in their composition, may change in women who are taking probiotics, according to new research from the University of Rochester Medical Center (URMC).
Younger patients would benefit greatly from kidney transplantation. Their expected remaining lifetime may even be doubled by having a transplant. 'We have to do all we can to get young patients listed for transplantation as soon as possible, preferably pre-emptively', says Professor Luuk Hilbrands, Chair of the DESCARTES working group of the ERA-EDTA. A proposal for the work-up of low-risk kidney
Round Two On Monday, the Chinese government finally confirmed to the world that disgraced scientist He Jiankui had been telling the truth: in an attempt to genetically alter people to be immune to HIV, He had allowed twin girls to be born with CRISPR-edited genomes. Now William Hurlbut, a Stanford bioethicist who says he was in regular contact with He, told the French wire service AFP that a seco
Publisher Correction: Somatic APP gene recombination in Alzheimer's disease and normal neurons Publisher Correction: Somatic APP gene recombination in Alzheimer's disease and normal neurons, Published online: 22 January 2019; doi:10.1038/s41586-019-0905-0 Publisher Correction: Somatic APP gene recombination in Alzheimer's disease and normal neurons
A research team has made a significant breakthrough in the search for new states of matter. The scientists show that a perovskite-related metal oxide exhibits a quantum spin liquid state, a long-sought-after and unusual state of matter.
Daily briefing: How to deal with not getting tenure Daily briefing: How to deal with not getting tenure, Published online: 22 January 2019; doi:10.1038/d41586-019-00248-0 "The best revenge is doing well." Plus: fast, cheap, easy DNA testing in police stations and #ScienceShutdown stories.
Roma and The Favourite led the Oscar nominations with 10 apiece as the Academy Awards unfurled their shortlist Tuesday morning, with Best Picture recognition for A Star Is Born , BlacKkKlansman , Green Book , Black Panther , Vice , and Bohemian Rhapsody. Some surprising snubs abounded in a race that never quite settled on an obvious front-runner: Bradley Cooper ( A Star Is Born ) and Peter Farrel
Wherever possible, researchers should not just focus on mosquito behavior when working to eliminate malaria, but must also consider how humans behave at night when the risk of being bitten by an infected mosquito is highest, new findings from the Johns Hopkins Center for Communication Programs (CCP) suggest. CCP is based at the Johns Hopkins Bloomberg School of Public Health.
Plastics recycling is complicated by the need to recycle similar plastics together. The presence of flame retardants in plastics also needs to be identified, and a NIR hyperspectral imaging method to do so is reported in this paper in the peer-reviewed, open-access journal, JSI — Journal of Spectral Imaging.
A new Tel Aviv University study finds that white blood cells which are responsible for chronic asthma and modern allergies may be used to eliminate malignant colon cancer cells.
After slowly forming stars for the first few billion years of their lives, the Magellanic Clouds, near neighbors of our own Milky Way galaxy, have upped their game and are now forming new stars at a fast clip. This new insight into the history of the Clouds comes from the first detailed chemical maps made of galaxies beyond the Milky Way.
A new study on intergenerational transmission of trauma has found evidence that Holocaust survivors suffering from post-traumatic stress disorder and their adult offspring exhibit more unhealthy behavior patterns and age less successfully in comparison to survivors with no signs of PTSD or parents who did not experience the Holocaust and their offspring.
Macrophages, the immune cells that 'eat' pathogens and cell debris, are often ineffective against cancer cells. How can we co-opt them to attack tumors?
Emerging infectious diseases comprise a substantial fraction of important human infections, with potentially devastating global health and economic impacts. A 2008 paper in Nature described the emergence of no fewer than 335 infectious diseases in the global human population between 1940 and 2004. In the veterinary field, just as in the medical field, advanced molecular techniques and sophisticate
Emerging infectious diseases comprise a substantial fraction of important human infections, with potentially devastating global health and economic impacts. A 2008 paper in Nature described the emergence of no fewer than 335 infectious diseases in the global human population between 1940 and 2004. In the veterinary field, just as in the medical field, advanced molecular techniques and sophisticate
Steely Fan Stainless steel won't just make the SpaceX Starship rocket look cool — it'll help it stay cool, too. On Tuesday, Popular Mechanics published an interview with CEO Elon Musk focused on SpaceX's decision to build its massive new rocket out of stainless steel instead of the previously planned carbon fiber. Not only is the material cheaper and tougher, according to Musk, but it also gives
Rysslands antidopningsbyrå (Rusada) får på nytt klartecken från Wada, den internationella antidopningsbyrån. Wada anser sig ha fått tillfredsställande resultat från de datauppgifter man begärt in från dopningslaboratoriet i Moskva. Men ryska idrottare kan fortfarande komma att stängas av från OS i Tokyo nästa år.
British electric appliance pioneer Dyson will switch headquarters to Singapore this year due to booming Asian demand but not because of Brexit, the company said Tuesday.
Capcoms survival horror classic returns with improved visuals, new controls and a whole host of monstrous surprisesLets get this out of the way: Resident Evil 2 is the best game in Capcoms …
Having ancestors with frequent exposure to stressors can improve a lizard's immune response to stress, research shows. The findings suggest family history should be a consideration for predicting or understanding the health implications of stress. "Prolonged stress typically suppresses immune function within an individual," says Tracy Langkilde, professor and head of biology at Penn State. "For e
Children's risk of being diagnosed with reactive attachment disorder (RAD) increases if parents are diagnosed with any type of mental health disorder, discovered researchers from the Research Centre for Child Psychiatry of the University of Turku, Finland. Particularly parents' alcohol and drug addiction and mother's depression were associated with reactive attachment disorder in children. The nat
A McGill-led international research team provides the first experimental and theoretical proof that it is possible to form strong, stable attractions between some of the heavier elements in the periodic table — such as arsenic or even antimony. Because hydrogen is not involved in creating the bond between these elements, these new materials should be resistant to water and humidity.
Emerging infectious diseases comprise a substantial fraction of important human infections, with potentially devastating global health and economic impacts. A 2008 paper in Nature described the emergence of no fewer than 335 infectious diseases in the global human population between 1940 and 2004. In the veterinary field, just as in the medical field, advanced molecular techniques and sophisticate
Graphene Flagship researchers reviewed the current research into the safety of graphene and related materials looking at both human health and environmental impact.
A new study has shown that only a minority of patients in the US with type 1 diabetes (T1D) achieve target levels of hemoglobin A1c, a measure of blood glucose management over time.
New research by Bocconi University's Paola Cillo and Gaia Rubera with Texas A&M's David Griffith asserts that the reaction of large individual investors to innovation is an important component of stock returns, their reaction to innovation depends on their national culture, and there is a way to segment large individual investors and pitch innovation to them accordingly.
Diseases such as multiple sclerosis are characterized by damage to the 'myelin sheath', a protective covering wrapped around nerve cells akin to insulation around an electrical wire. Researchers from Charité – Universitätsmedizin Berlin have discovered how the body initiates repair mechanisms which will limit the extent of any damage to this sheath. Their findings, which provide a basis for the de
Less than two years after the first report of wild chimpanzees in Uganda dying as a result of a human 'common cold' virus, a new study has identified two other respiratory viruses of human origin in chimpanzee groups in the same forest.
Researchers looked to nature for inspiration in designing more effective wireless sensor networks. First, they recorded the vocal interplay of neighboring tree frog calls, which they found allowed trade-off time for individual communication, though this is interspersed with more random collective silence and choruses. They mathematically modeled these patterns and effectively applied their model t
Researchers have reported the first experimental observation of a XY-type antiferromagnetic material, whose magnetic order becomes unstable when it is reduced to one-atom thickness. These findings are consistent with theoretical predictions dating back to the 1970s.
As we see federal employees grappling with austerity, and for some a slide into poverty, for the first time, I wonder if this is how the apparently inevitable shift to automation may look as thousands of people are put out of work with no safety net. submitted by /u/hoodiemonster [link] [comments]
Drastic Outsourcing To help cut down at the horrifically-long donor organ waitlist, some scientists are looking up to outer space. Several doctors have tried to 3D print organs in the lab, with mixed results — organs with complex internal structures, like hearts and lungs, tend to collapse under their own weight. Now, instead of supporting them with complex scaffolding systems, some scientists ar
A new study of Bajondillo Cave (Málaga, Spain) reveals that modern humans replaced Neanderthals at this site approximately 44,000 years ago. The research shows that the replacement of Neanderthals by modern humans in southern Iberia began early, rather than late, in comparison to the rest of Western Europe.
Two-dimensional sheets of graphene in the form of ribbons a few tens of nanometers across have unique properties that are highly interesting for use in future electronics. Researchers have now for the first time fully characterized nanoribbons grown in both the two possible configurations on the same wafer with a clear route towards upscaling the production.
A researcher has added another piece to the puzzle of the evolution of modern baleen whales with a new study examining the teeth and enamel of baleen whales' ancestors.
Sepsis is a life-threatening condition that develops in response to infection. One of its major complications is cardiovascular dysfunction. Now, scientists show that a novel synthetic compound derived from flaxseed can reverse this and improve heart function in mice with sepsis.
Researchers from Aarhus University, Denmark, and Copenhagen Zoo have discovered that the human mutation rate is significantly slower than for our closest primate relatives. The new knowledge may be important for estimates of when the common ancestor for humans and chimpanzees lived — and for conservation of large primates in the wild.
A recent study finds that experiencing racial discrimination makes black teens and young adults more likely to engage in social and political activism on issues that are important to black communities.
People with schizophrenia have a hard time integrating information about a reward — the size of the reward and the probability of receiving it — when assessing its value, according to a study in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging.
Advanced technologies that read long strings of DNA can produce flawed data that could affect genetic studies, research from the University of Edinburgh's Roslin Institute suggests.
Cancer of the esophagus claims more than 400,000 lives around the world each year. With no efficient, reliable method of screening for the disease, by the time symptoms become apparent, it's often too late to save the patient.
With the help of a multidisciplinary register and questionnaire study, Finnish researchers showed that both the educational level and its occupational orientation predict the mother's smoking during early pregnancy.
Climate change causes an increase in the number of freshwaters that run dry, at least temporarily. Around 90,000 square kilometres of water surface have already vanished in the last 30 years. This trend is not only a threat to drinking water reserves and major ecosystems – dried freshwaters also play an important role in the global carbon cycle. Two recently published studies reveal that the impor
Scientists of the Far Eastern Federal University, together with Russian and foreign colleagues, developed samples of nickel mesoporous film structures, which have useful surface area up to 400 times greater than their solid one. Brand new material can be used in energy saving, chemical industry and other practical areas. The research results are published in Applied Surface Science journal.
Carbon fiber is an important structural material of the 21st century. Due to its high strength, which is not inferior to metal alloys, in combination with low specific weight and high oxidative stability, it is an indispensable material for airspace and shipbuilding industry, construction, medicine, sports industry, and in other high-tech industry sectors.
A new study published today in the Journal of the American Medical Association (JAMA) has found that taking aspirin on a regular basis to prevent heart attacks and strokes, can lead to an increase risk of almost 50 percent in major bleeding episodes.
A drop in the number of young children diagnosed with type 1 diabetes could be associated with the introduction of routine rotavirus vaccination of Australian infants, according to a new study by Melbourne researchers.
Giving nursing mouse mothers a supplement called nicotinamide riboside (NR) promotes maternal weight loss, boosts milk production and quality, and leads to long-lasting physical, neurological, and behavioral benefits in the pups. The findings of the University of Iowa study were published Jan. 22 in Cell Reports.
Researchers identified the brain circuits that form memories associating environmental cues with cocaine use. Targeting these memories may improve the success of exposure therapy to prevent relapse.
A randomized clinical study of adolescent boys with nonalcoholic fatty liver disease (NAFLD) found that a diet low in free sugars (those sugars added to foods and beverages and occurring naturally in fruit juices) resulted in significant improvement in NAFLD compared to a usual diet.
This study analyzed combined results from 13 randomized clinical trials with more than 164,000 participants to assess aspirin use with the prevention of cardiovascular events and bleeding in people without cardiovascular disease. Results suggest aspirin use was associated with lower risk (absolute risk reduction of 0.38 percent) for cardiovascular events (a composite of cardiovascular death, nonfa
The proportion of liver transplants in the United States for alcohol-associated liver disease increased between 2002 and 2016, with much of the increase associated with a decrease in liver transplant for hepatitis C virus infection because of antiviral therapy. This observational study used data from the United Network for Organ Sharing for all liver transplants during the 15-year period and the n
Neonatal abstinence syndrome describes symptoms (including jitteriness, high-pitched crying, sweating and diarrhea) that primarily occur in newborns exposed to opioids during pregnancy. Finding an optimal drug therapy to treat newborns for neonatal abstinence syndrome may reduce the length of treatment and hospital stay.
The Trump administration's proposal to require pharmaceutical companies to publish drug prices in TV ads is unlikely to help control drug prices, according to a new study in JAMA Internal Medicine.
The proportion of US liver transplants for alcohol-associated liver disease (ALD) has doubled in the last 15 years, in part due to broader acceptance of waiving the mandated period of sobriety before transplants for this population, according to a study by researchers at UC San Francisco, which showed ongoing regional geographic variations in liver transplant rates for ALD patients, whose long-ter
Science Not everyone has Marie Kondo to watch over them. Can simply tidying up really be that life changing? I've been following the KonMari method as part of my "getting organised" new year's resolution and, after two weeks,…
Plants have control mechanisms that resemble those in human senses. According to a new Weizmann Institute of Science study, plants adjust photosynthesis to rapid light changes using a sophisticated sensing system, much in the way that the human eye responds to variations in light intensity. This sensory-like regulation operates at low light intensities, when the photosynthesis machinery is most ef
For more and more people, learning about their genetic makeup is just the first step. The second is heading to the airport so they can explore their roots in person.
Plants have control mechanisms that resemble those in human senses. According to a new Weizmann Institute of Science study, plants adjust photosynthesis to rapid light changes using a sophisticated sensing system, much in the way that the human eye responds to variations in light intensity. This sensory-like regulation operates at low light intensities, when the photosynthesis machinery is most ef
Heavy Load In a new animation, Amazon CEO Jeff Bezos' space agency Blue Origin showed off a new design for its heavy load "New Glenn" rocket. The animation shows the two stage rocket take off from a launch pad before separating a bullet-shaped payload fairing in space as the booster re-enters the atmosphere and lands on a ship. Yes, that last part is similar to how SpaceX reuses its Falcon 9 boos
It may have happened more than 2300 years ago, but the mystery of Alexander the Great's death could finally be solved, thanks to a University of Otago, New Zealand, academic.
ClassDojo is one of the most popular education apps in the world. Its company estimates it is used by millions of teachers and children across 180 countries. Beneath its friendly exterior lie disturbing implications, say researchers.
Cyanobacteria produce liver toxins harmful to people and their pets, but they shield tiny shrimp-like crustaceans from fungal parasites. New research shows the toxins protect sand-grain-sized lake animals called Daphnia that eat them, the same way toxins in milkweed plants protect monarch butterflies from parasites. Commonly known as water fleas, Daphnia play a key role in freshwater food webs an
Having ancestors who were frequently exposed to stressors can improve one's own immune response to stressors, according to researchers. The results suggest that family history should be considered to predict or understand the health implications of stress.
New research shows that the degree to which aerosols cool the earth has been grossly underestimated, necessitating a recalculation of climate change models to more accurately predict the pace of global warming.
A two to three-fold increase in heatwave activity in the United Kingdom since the late 19th century has been identified in a new analysis of historical daily temperature data.
Future generations could be faced with an environmental 'time bomb' if climate change is to have a significant effect on the world's essential groundwater reserves.
The size of children's heads is not only related to the growth of their skull, but also their brain. A genome-wide analysis now reports the largest known genetic effects on head circumference and the related measure of intracranial volume.
A team of chemists at the University of Münster led by Professor Frank Glorius have developed a new, simple synthetic method for producing fluorinated piperidines — which had previously been very difficult. These compounds play a major role in the development of new active ingredients. The results have just been published in the online edition of the journal Nature Chemistry.
A new method to measure the temperature of atoms during the explosive death of a star will help scientists understand the shock wave that occurs as a result of this supernova explosion.
ClassDojo is one of the most popular education apps in the world. Its company estimates it is used by millions of teachers and children across 180 countries. Beneath its friendly exterior lie disturbing implications.
Before the feminist revolution, men built their masculinity on traits that opposed those assigned to women. Since then, men can no longer rely on this anti-feminine norm. What are the effects of this shift on masculinity affirmation? Researchers (UNIGE) have revealed that some men assert their manhood by stressing their heterosexuality, in order to compensate for this feminisation of men. This mov
A KAIST team presents a noninvasive light-sensitive photoactivatable recombinase suitable for genetic manipulation in vivo. The highly light-sensitive property of photoactivatable Flp recombinase will be ideal for controlling genetic manipulation in deep mouse brain regions by illumination with a noninvasive light-emitting diode. This easy-to-use optogenetic module made by Professor Won Do Heo and
Professor Rony Paz of the Weizmann Institute of Science suggests that our brains are like modern washing machines — evolved to have the latest sophisticated programming, but more vulnerable to breakdown and prone to develop costly disorders. He and a group of researchers recently conducted experiments comparing the efficiency of the neural code in non-human and human primates, and found that as t
Plants have control mechanisms that resemble those in human senses. According to a new Weizmann Institute of Science study, plants adjust photosynthesis to rapid light changes using a sophisticated sensing system, much in the way that the human eye responds to variations in light intensity. This sensory-like regulation operates at low light intensities, when the photosynthesis machinery is most ef
It may have happened more than 2300 years ago, but the mystery of Alexander the Great's death could finally be solved, thanks to a University of Otago, New Zealand, academic.
Polisen har lagt ned utredningen av det påstådda knivrånet mot en supporter som köpt fyra biljetter till matchen Chelsea-Malmö FF. Det går inte att styrka att något brott begåtts.
Once upon a time, in an unspecified yet magical land of mushroom monsters, terrorizing turtles, fire-breathing plants, and bricks bestowing money and mysterious gifts, a strange rivalry arose between two of the land's residents: twin brothers, both plumbers, an important trade in a country that relied so much on underground pipes for public transit. One plumber was short, plump, and fond of red c
An Otago researcher has added another piece to the puzzle of the evolution of modern baleen whales with a world-first study examining the teeth and enamel of baleen whales' ancestors.
From London to Tokyo, climate change is causing cities to sink — and our modern concrete infrastructure is making us even more vulnerable to severe flooding, says landscape architect and TED Fellow Kotchakorn Voraakhom. But what if we could design cities to help fight floods? In this inspiring talk, Voraakhom shows how she developed a massive park in Bangkok that can hold a million gallons of rai
Meditation can have a profound impact in reducing anxiety and stress. While there are many ways to meditate, the ability to sustain your attention on one thing for a period of time is the foundation of them all. The more you practice, the more results you get, though quality of time is more important than quantity None Nothing is created in a vacuum. The emergence of meditation as a cultural stap
An Otago researcher has added another piece to the puzzle of the evolution of modern baleen whales with a world-first study examining the teeth and enamel of baleen whales' ancestors.
Chinese tech giant Huawei said Tuesday it could pull out of partnerships in hostile countries as it seeks to counter security concerns in the West over its 5G technology.
New research has found that a novel Artificial Intelligence (AI) system can dramatically reduce the time needed to ensure that abnormal chest X-rays with critical findings will receive an expert …
There's a new way to the temperature of atoms during the explosive death of a star. That information will help scientists understand the shock wave that occurs as a result of this supernova explosion. The research team analyzed long-term observations of the nearby supernova remnant SN1987A using NASA's Chandra X-ray Observatory and created a model describing the supernova. The team confirmed that
Verktyg för att följa hur floder formar landskapet är av stor vikt för socioekonomisk tillväxt. Att identifiera gränserna för flodslätter (områden som riskerar att svämma över) är ett viktigt steg för alla urbana och miljömässiga skydds- och utvecklingsplaner. Bedömningen av markområden i anslutning till en flodslätt utefter vilken risk området löper att översvämmas (floodplain zoning) görs vanli
Moon Mission The European Space Agency (ESA) says that it's studying the prospects of a 2025 mission to the Moon that would use robotic mining equipment to extract rocket fuel from lunar regolith, the ancient ore that covers the Moon's surface. "The use of space resources could be a key to sustainable lunar exploration and this study is part of ESA's comprehensive plan to make Europe a partner in
Chinese tech giant Huawei said Tuesday it could pull out of partnerships in hostile countries as it seeks to counter security concerns in the West over its 5G technology.
A new, groundbreaking tool for visualizing neural activity has implications for understanding brain functions and disorders, according to new research by University of Alberta scientists and a team of international collaborators.
Sepsis is a life-threatening condition that develops in response to infection. One of its major complications is cardiovascular dysfunction. Now, in a new study published online in the Journal of Molecular and Cellular Cardiology, scientists at the Lewis Katz School of Medicine at Temple University are the first to show that a novel synthetic compound derived from flaxseed can reverse this and imp
In Europe, people are more reserved regarding robots than they were five years ago. This is shown in a new study published by scientists from Linz and Würzburg.
Having ancestors who were frequently exposed to stressors can improve one's own immune response to stressors, according to Penn State researchers. The results suggest that family history should be considered to predict or understand the health implications of stress.
A new scientific paper has, for the first time, proposed an omega-3 DHA target blood level of 5 percent or higher for pregnant women who want to reduce their risk of preterm birth. Published in the December edition of Nutrients, authors Kristina Harris Jackson, Ph.D., R.D., and William S. Harris, Ph.D., discuss the ramifications of low DHA levels among pregnant women and why they need to strive fo
Rutgers researchers have discovered the long-sought reason that many people with joint replacements experience harmful inflammation and bone loss. Their finding, published in Nature Materials, may pave the way for new therapies to reduce pain and prevent the need for follow-up surgery.
The quest for climate scientists to be able to bridge the gap between shorter-term seasonal forecasts and long-term climate projections is 'coming of age', a study shows.
A rapid rise in temperature on ancient Earth triggered a climate response that may have prolonged the warming for many thousands of years, according to scientists.
Exercise can protect both muscle and nerves from damage caused by the restoration of blood flow after injury or surgery, new research from the University of Virginia School of Medicine shows.
An Otago researcher has added another piece to the puzzle of the evolution of modern baleen whales with a world-first study examining the teeth and enamel of baleen whales' ancestors.
A new study from the Woods Hole Oceanographic Institution (WHOI) is beginning to pick apart how bizarre zombie-like microbes survive by examining their source of 'food' — nearby molecules of organic carbon. The study helps further our understanding of the limitations of life on Earth and could help inform how life might exist on other planets.
A new, groundbreaking tool for visualizing neural activity has implications for understanding brain functions and disorders, according to new research by University of Alberta scientists and a team of international collaborators.
Every "history of pharmaceuticals" article ever written probably mentions quinine , and well they should. (I certainly reserved an entry for it while writing my own chemical history book ). It's a classic example of a natural product drug, one that was not known to the classical Mediterranean world but was only appreciated by Europeans after they came into contact with the New World civilizations
A team of Southwest Research Institute engineers has created an interactive decision tree aimed at finding the best solution for specific oil spill scenarios. Numerous chemical dispersant technologies are available to address different types of oil spills and countless variables and external conditions can play into the effectiveness of any given dispersant. SwRI's decision-making tool helps bridg
British and German citizens have very different views on whether or not their governments should continue to provide a state pension in the years ahead, according to new research by the University of Kent.
Big earthquakes appear to follow a brief episode of "shallow mantle creep" and "seismic swarms," suggests new research at Oregon State University that offers an explanation for the foreshocks observed prior to large temblors.
Mark- och miljööverdomstolen har beslutat att inte godkänna överklaganden om 400 planerade studentbostäder på Gärdet. Fastigheterna lär därmed med största sannolikhet byggas.
Den akutläkare som åtalats för våldtäktsförsök utreddes tidigare för en våldtäkt mot en sjuksköterska på hans arbetsplats. Trots att polisutredningen pågick fick mannen jobba kvar på sjukhuset.
Researchers have tested the sounds made by six different acoustic guitars in a study addressing the effects of the type of wood used in their construction.
The faint, ephemeral glow emanating from the planetary nebula ESO 577-24 persists for only a short time—around 10,000 years, a blink of an eye in astronomical terms. ESO's Very Large Telescope captured this shell of glowing ionized gas—the last breath of the dying star whose simmering remains are visible at the heart of this image. As the gaseous shell of this planetary nebula expands and grows di
Facebook and Google began as companies with supposedly noble purposes. Creating a more connected world and indexing the world's information: what could be better than that? But pressure to return value to shareholders came at the expense of their own users.
Researchers discovered that the more attention you give a cat, the more likely they are to return it. Cats are territorial; being in their home environment greatly affects their attitude. The common wisdom that cats are aloof is provably false. None This weekend, my wife and I visited the San Diego Zoo. Having grown up nearby, she visited often as a child, though it was my first time. While I gen
Imagine you're on a small boat in the middle of the open ocean, surrounded by what looks like a raft of plastic. Now flip the whole world upside down. You remain comfortably attached to your seat—the abyss towers above you, and all around, stretching up from the water's surface, is an electric-blue meadow of life. What you thought was plastic is actually a living island. This meadow is made up of
Sveriges nya kulturminister Amanda Lind (MP) hamnade i blåsväder ungefär samtidigt som hennes nya tjänst offentliggjordes. Bland annat för att hon försvarat sparkade ministern Mehmet Kaplan. – Man ska inte tacka ja till att bli kulturminister om man inte är beredd på debatt, säger hon i Studio Ett.
Föräldern blev upprörd på läraren under ett kvartssamtal på skolan. Till slut ska ett slagsmål ha utbrutit, enligt anmälan till Arbetsmiljöverket. När vaktmästaren kom till undsättning ska föräldern även ha gett sig på honom med knytnävarna och gjort ett försök till en "knockning".
A new study, published in Clinical Epigenetics, identifies genes associated with Age-related Macular Degeneration (AMD) that could represent new targets for future drug development.
The Polymerisation Process research group of the POLYMAT institute of the UPV/EHU-University of the Basque Country has managed to efficiently encapsulate semiconductor nanocrystals or quantum dots of various sizes into polymer particles; great stability in terms of their optical properties and good fluorescence control when combining different quantum dots have been achieved. The possible applicab
Since 2008, political trust in European institutions has greatly deteriorated in many member states, including Spain, and has given rise to increasing research into its causes. This debate has focused on the economic and social evolution resulting from the austerity policies encouraged by the European institutions themselves and on their clear lack of response to citizens' growing demands.
Using a new computational method, an international collaboration has succeeded for the first time in systematically investigating magnetic quantum effects in the well-known 3D pyrochlore Heisenberg model. The surprising finding: physical quantum phases are formed only for small spin values.
An artificial intelligence (AI) system can interpret and prioritize abnormal chest X-rays with critical findings, potentially reducing the backlog of exams and bringing urgently needed care to patients more quickly, according to a new study.
Two-dimensional sheets of graphene in the form of ribbons a few tens of nanometers across have unique properties that are highly interesting for use in future electronics. Researchers have now for the first time fully characterized nanoribbons grown in both the two possible configurations on the same wafer with a clear route towards upscaling the production.
Future generations could be faced with an environmental 'time bomb' if climate change is to have a significant effect on the world's essential groundwater reserves.
A collaborative research effort between the departments of chemistry at the University of Oxford and University of Jyväskylä has resulted in the discovery of a gold compound exhibiting nucleophilic behavior hitherto unknown for molecular gold. The research enables new opportunities in applying gold compounds, for example, as catalysts in novel chemical reactions.
Researchers from the Department of Biomedical Research of the University of Bern and the University Clinic of Visceral Surgery and Medicine of the Inselspital Bern, Switzerland, have discovered that changes in the composition of the intestinal bacteria in patients with chronic inflammatory bowel disease affect the severity of the disease and the success of therapy. The advance provides an importan
Corals know how to attract good company. New research finds that corals emit an enticing fluorescent green light that attracts the mobile microalgae, known as Symbiodinium, that are critical to the establishment of a healthy partnership.
– Förändringen i den här genen, som kodar för DNA-polymeras epsilon, ger en hävstångseffekt som skapar exceptionellt mycket mutationer hos tumörer. Nu kan vi förklara varför det sker, säger Erik Johansson, professor i medicinsk biokemi vid Umeå universitet Arvsmassan som vi bär med oss genom livet är uppbyggd av två DNA-strängar. Proteinet DNA-polymeras epsilon bygger i första hand den ena DNA-st
Researchers have demonstrated for the first time how two molecular strategies can safeguard CRISPR gene-drive experiments in the lab, according to a study published today in eLife.
Researchers have demonstrated for the first time how two molecular strategies can safeguard CRISPR gene-drive experiments in the lab, according to a study published today in eLife.
Phenylalanine amino acid must be included in the human diet, but it is also essential for plants, determining many of their characteristics, such as the colour and scent of flowers, healing powers and antioxidant properties, and the strength of wood. A team of researchers from the UMA has now demonstrated that ADT2 gene is essential for plants to produce phenylalanine, conditioning their survival.
The erosion of materials used in wind turbine blades due to the effect of weather conditions is a problem that applies to the whole wind energy sector. VTT's antiAGE project found a functional solution to the material problem with the help of artificial intelligence and 3-D printing.
A bipedal robot walks on the surface of a distant planet. Its sensors scan the environment, sending data back to Earth. It comes to a crumbling hillside, flexes its knees and leaps, thrusters whirring, to land safely above the loose rock.
Ulf Starks sista bok, "Rymlingarna", gavs i fjol ut postumt efter författarens bortgång i juni 2017. I Sverige har boken, med illustrationer av Kitty Crowther, sålt i 12 000 exemplar.
Phenylalanine amino acid must be included in the human diet, but it is also essential for plants, determining many of their characteristics, such as the colour and scent of flowers, healing powers and antioxidant properties, and the strength of wood. A team of researchers from the UMA has now demonstrated that ADT2 gene is essential for plants to produce phenylalanine, conditioning their survival.
2018 was bonkers for science. From a woman who gave birth using a transplanted uterus, to the infamous CRISPR baby scandal, to forensics adopting consumer-based genealogy test kits to track down criminals , last year was a factory churning out scientific "whoa" stories with consequences for years to come. With CRISPR still in the headlines, Britain ready to bid Europe au revoir, and multiple scie
We agree to give up some degree of privacy anytime we search Google to find a nearby restaurant or use other location-based apps on our mobile devices.
A recent study by researchers at North Carolina State University and the University of Chicago finds that experiencing racial discrimination makes black teens and young adults more likely to engage in social and political activism on issues that are important to black communities.
Has the internet afforded humans more freedom, or less? That's a question I'm pondering anew thanks to the University of Michigan philosophy professor Elizabeth Anderson, who provoked the thought while being interviewed by Nathan Heller for a recent profile in The New Yorker . After Europe's religious wars, Anderson mused, as centuries of conflict s between Catholics and Protestants gave way to a
A small change in the genetic makeup of the South African Cape bee turns the socially organised animal into a fighting parasite. This change ensures that infertile worker bees begin to lay their own eggs and fight other colonies. In the current issue of the journal 'Molecular Biology and Evolution', an international research team led by Martin Luther University Halle-Wittenberg (MLU) outlines for
Less than two years after the first report of wild chimpanzees in Uganda dying as a result of a human 'common cold' virus, a new study has identified two other respiratory viruses of human origin in chimpanzee groups in the same forest.
The faint, ephemeral glow emanating from the planetary nebula ESO 577-24 persists for only a short time — around 10,000 years, a blink of an eye in astronomical terms. ESO's Very Large Telescope captured this shell of glowing ionized gas — the last breath of the dying star whose simmering remains are visible at the heart of this image. As the gaseous shell of this planetary nebula expands and gr
The breakthrough made by researchers at IRB Barcelona allows the study of the role of each molecular component in the stability and conformation of DNA crystals.
Do laws of biodiversity also apply to our own bodies and homes? If so, current hygiene measures against aggressive germs could sometimes be counterproductive, writes an interdisciplinary research team from the German Centre for Integrative Biodiversity Research (iDiv) in Nature Ecology & Evolution. They propose to examine the role diversity of microorganisms plays in our domestic environment more
A two to three-fold increase in heatwave activity in the United Kingdom since the late 19th century has been identified in a new analysis of historical daily temperature data led by University of Warwick scientists.
An international research team led by the University of Liverpool and McMaster University has made a significant breakthrough in the search for new states of matter. In a study published in the journal Nature Physics, researchers show that the perovskite-related metal oxide, TbInO3, exhibits a quantum spin liquid state, a long-sought-after and unusual state of matter.
A new study of Bajondillo Cave (Málaga, Spain) reveals that modern humans replaced Neanderthals at this site approximately 44,000 years ago. The research shows that the replacement of Neanderthals by modern humans in southern Iberia began early, rather than late, in comparison to the rest of Western Europe.
Researchers at the UAB and the UMBC have described a new process capable of generating resistance to synthetic antibacterial drugs within bacterial populations long before their invention and without the existence of any similar substance in nature. The study has established that sulfonamide-resistant genes appeared million years ago thanks to a mutation in the drug's target gene.
In the largest genetic study of osteoarthritis, an international team of scientists including researchers from the University of Sheffield, have uncovered 52 new genetic changes linked to the disease, which doubles the number of genetic regions associated with the disabling condition.
The population of Antarctic krill, the favorite food of many whales, penguins, fish and seals, shifted southward during a recent period of warming in their key habitat, a paper published today in Nature Climate Change reports.
At the International Congress of Mathematicians in Rio de Janeiro this past August, the algebraic geometer Carolina Araujo was difficult to track down. As a member of the organizing committee, she was overseeing the women-in-mathematics file and working on several files behind the scenes, plus refining her own lecture — non-trivially, she was among the first Brazilian women to deliver an invited
Land of the Living Earth's coral reefs are dying at an alarming rate, but Coral Vita thinks it knows how to save them. The startup is building the world's first commercial, land-based coral farm — a place it can efficiently grow coral to later transplant into the world's oceans. Once completed, the farm could be our best option for protecting one of Earth's most precious natural resources. Farm F
Postnord har blivit av med flera ombud i början av året och Post- och telestyrelsen efterfrågar nya leveransvägar. Nu svarar Postnords Sverigechef på den senaste tidens kritik. – Jag tycker inte att vi har ett problem, säger Annemarie Gardshol.
USA:s högsta domstol har hävt tidigare domar som hindrat Donad Trumps administration från att stoppa transpersoner från att tjänstgöra i militären, enligt Bloomberg News.
Around 30 percent of the world's biosolids are stockpiled or sent to landfill each year, while over 3 billion cubic meters of clay soil is dug up for the global brickmaking industry. Using biosolids in bricks offers an innovative solution to these environmental challenges.
De samtal om Nordkorea som avslutades i måndags i Sverige var framgångsrika, enligt utrikesminister Margot Wallström (S). Fler möten i Sverige är sannolika. Men behovet av förtroendeskapande träffar är en signal om att relationerna mellan USA och Nordkorea präglas av misstro.
På blot to år har projektet 'Fleksible indlæggelser' i Silkeborg Kommune forhindret 41.000 indlæggelsestimer for 1.000 borgere ved at udviske barrierer mellem sektorer. Derfor modtager de Kommunal Sundheds pris, Den Gyldne Tråd.
Møde med sundhedsministeren og innovationsministeren gav ikke Lægeforeningen afklaring på, hvordan regeringen vil finansiere det stigende antal patienter.
Region Midtjylland har sendt redegørelse for varetagelsen af AUH's specialfunktioner inden for gynækologisk onkologi til Sundhedsstyrelsen. Regionen forventer, at bemandingen på området er på plads til april.
People with Alzheimer's disease who used antiepileptic drugs had a higher number of accumulated hospital days than people with Alzheimer's disease who did not use antiepileptics, according to a new study from the University of Eastern Finland. People with Alzheimer's disease who used antiepileptic drugs had a higher number of accumulated hospital days than people with Alzheimer's disease who did n
Researchers at the IBS Center for Correlated Electron Systems, in collaboration with Sogang University and Seoul National University, reported the first experimental observation of a XY-type antiferromagnetic material, whose magnetic order becomes unstable when it is reduced to one-atom thickness. Published in Nature Communications, these findings are consistent with theoretical predictions dating
Experiments by Fralin Biomedical Research Institute scientists show a strong relationship between changes in astrocytes after mild traumatic brain injury and the eventual occurrence of a seizure.
A team including researchers from Osaka University looked to nature for inspiration in designing more effective wireless sensor networks. First, they recorded the vocal interplay of neighboring tree frog calls, which they found allowed tradeoff time for individual communication, though this is interspersed with more random collective silence and choruses. They mathematically modeled these patterns
A signaling pathway controlled by transforming growth factor beta (TGF-beta) could be involved in the progression of age-related macular degeneration (AMD).
A fresh look by the University of Bristol at how teenagers are affected by their asthma, eczema or obesity has some reassuring findings published in BMJ Open today (Monday 21 January).
Scientists at the University of Edinburgh have identified genetic changes that may predict the likelihood of breast cancer relapse in women taking a common type of hormone therapy.
Researchers have tested the sounds made by six different acoustic guitars in a study addressing the effects of the type of wood used in their construction.Some of the woods used for guitar backs are revered by guitar players for their acoustic qualities, and are claimed to be tonally superior to other woods. Unfortunately many of these woods are expensive, rare, and from unsustainable sources.
Scientists from Tomsk Polytechnic University have developed implants which make mesenchymal stem cell to differentiate into bone tissue and accelerate limb lengthening in two times. The study outcomes were proved during preclinical trials at the Ilizarov Orthopedic Center (Kurgan, Russia).
Paying a living wage could be a step toward global economic and environmental sustainability, finds a first-of-its-kind study by the University of Surrey.
Germans think the state always has some role to play in providing state pensions but UK citizens split over how to provide social welfare in the future, according to new research conducted at the University.
Big earthquakes appear to follow a brief episode of 'shallow mantle creep' and 'seismic swarms,' suggests new research that offers an explanation for the foreshocks observed prior to large temblors.
Researchers from Osaka University, in collaboration with the National Institute of Advanced Industrial Science and Technology (AIST) and Grenoble Alpes University, succeeded in efficiently controlling the direction of a nano-sized magnet by heating at high speed. The researchers also discovered that nano-magnets amplify microwave signals. These achievements will contribute to reducing power consum
A commonly held belief among the general public is orthodontic treatment will prevent future tooth decay. Research undertaken at the University of Adelaide has found that this is not the case.
In 'Milk Money: Race, Gender, and Breast Milk 'Donation," published in Signs: Journal of Women in Culture and Society, Laura Harrison demonstrates the exploitative, racially charged nature of Milk Money, a failed pilot program by the Mothers Milk Cooperative and Medolac Laboratories. The program targeted African American mothers in Detroit to sell their breast milk at one dollar per ounce to Medo
Scientists at the Okinawa Institute of Science and Technology Graduate University (OIST) have resolved a fundamental weakness in a promising solar technology known as Perovskite Solar Cells, or PSCs. Their innovations appear to improve both the devices' stability and scalability in one fell swoop and could be key to moving PSCs to market.
Advice for Trump's adviser Advice for Trump's adviser, Published online: 22 January 2019; doi:10.1038/d41586-019-00233-7 President Trump's new science adviser has his work cut out. Here's how meteorologist Kelvin Droegemeier can make a difference.
Today marks the beginning of 2019's National Drug and Alcohol Facts Week , a health observance first launched by the National Institute on Drug Abuse (NIDA) in 2010. In 2016, the National Institute of Alcohol Abuse and Alcoholism became a partner, adding alcohol as a topic area for the week. Geared towards teens, the initiative helps educate people on what science has taught us about drug addicti
Recent research has shown that rising carbon dioxide levels will likely boost yields, but at the cost of nutrition. A new studysuggests that this is an incomplete picture of the complex environmental interactions that will affect crops in the future — and rising temperatures may actually benefit nutrition but at the expense of lower yields.
Researchers have developed a simple blood test that can detect when a newly transplanted lung is being rejected by a patient, even when no outward signs of the rejection are evident. The test could make it possible for doctors to intervene faster to prevent or slow down so-called chronic rejection — which is severe, irreversible, and often deadly — in those first critical months after lung trans
As January 2019 entered its third week, huge swathes of the US are blanketed with snow, and winter storm warnings were in place across several states. US President Donald Trump, who has made it clear that he believes climate change is an overblown hoax, took to Twitter to suggest that "a little of that good old fashioned Global Warming" would be welcome.
Three-dimensional (3-D) printing, also known as additive manufacturing (AM), can transform a material layer by layer to build an object of interest. 3-D printing is not a new concept, since stereolithography printers have existed since the 1980s. The widespread availability and cost-effectiveness of the technology has allowed a variety of modern applications in biomedical engineering.
The environments in our bodies where bacteria thrive are very different from those in which lab tests take place, and that can be a problem. Sriram Chandrasekaran, assistant professor of biomedical engineering at the University of Michigan, is using advanced computer simulations to study how different environments affect antibiotic performance. Here, he discusses his recent study in PLOS Computat
Keeping track of who wears which costume, the location of soccer cleats and what is in the pantry are all examples invisible labor, or the mental and emotional effort required of mothers as they raise children and manage households. Researchers from Arizona State University and Oklahoma State University quantified the prevalence and impact of invisible labor. Feeling solely responsible for the hou
Research published today (Jan. 22) in the journal Brain reveals a new approach to Alzheimer's disease (AD) that may eventually make it possible to reverse memory loss, a hallmark of the disease in its late stages.
Corals know how to attract good company. New research finds that corals emit an enticing fluorescent green light that attracts the mobile microalgae, known as Symbiodinium, that are critical to the establishment of a healthy partnership.
A team of scientists from I.M. Sechenov First Moscow State Medical University (MSMU) together with their colleagues isolated a peptide named emericellipsin A from soil fungi. The substance was proved to possess antitumor and antibacterial properties. The report of the scientists was published in the Molecules journal.
Physicists from Immanuel Kant Baltic Federal University (BFU) developed and applied a method of identifying microplastic collected in sea waters. The spectroscopy method allows to determine the chemical composition of contaminants regardless of their size. The article about the research was published in Marine Pollution Bulletin.
The DNA replication process, which takes place every time a cell divides, also triggers repair of DNA damage, researchers from the University of Copenhagen have described in a new study, where they have studied extracts from frog eggs, whose proteins are very similar to those of human cells. The researchers hope the new research results can be used to develop more effective treatments for cancer i
For the first time, a team led by Prof. Jian-Wei Pan and Prof. Bo Zhao at the University of Science and Technology of China, have successfully observed scattering resonances between atoms and molecules at ultralow temperatures, shedding light on the quantum nature of atom-molecule interactions that have so far only been discussed in theory.
Comparison of samples from inmate Spandau #7 and Hess relative finds a match A longstanding conspiracy theory that the Nazi war criminal Rudolf Hess was replaced by a doppelganger in prison has been debunked. For years, there were rumours that the prisoner known as Spandau #7 at the Berlin jail was an impostor substituted in to take the place of the deputy Führer of the Third Reich. Continue read
You've probably heard the term gentrification thrown around many times to describe how neighborhoods are transforming in cities like Los Angeles, New York, Denver, Seattle, San Francisco and Portland. You probably think of gentrification and picture an influx of hip coffee shops and trendy restaurants. But, have you considered the impact on children and schools?
Professor Jinwoo Shin and Professor Dongsu Han from the School of Electrical Engineering developed neural adaptive content-aware internet video delivery. This technology is a novel method that combines adaptive streaming over HTTP, the video transmission system adopted by YouTube and Netflix, with a deep learning model.
Thousands of students at George Mason University can order food from on-demand robots on wheels. The school has received a fleet of 25 delivery robots from Starship Technologies that can haul …
Do you like the thought of UPS delivering packages to your apartment building when you're not home? UPS certainly does. The courier plans to bring its in-building delivery option …
Region Nordjylland og Lægemiddelindustriforeningen har indgået aftale om at sikre klare rammer om samarbejdet mellem lægemiddelvirksomheder og sundhedspersonalet.
Scientists' salary data highlight US$18,000 gender pay gap Scientists' salary data highlight US$18,000 gender pay gap, Published online: 22 January 2019; doi:10.1038/d41586-019-00220-y Female PhD recipients in the United States expect to earn less than male colleagues.
From the archive From the archive, Published online: 22 January 2019; doi:10.1038/d41586-019-00217-7 How Nature reported an analysis of animal coloration in 1919, and Darwin's letters in 1969.
2018: A year of drought – climate change causes an increase in the number of freshwaters that run dry, at least temporarily. Also, many lakes are shrinking permanently or have disappeared completely. Around 90,000 square kilometres of water surface have already vanished in the last 30 years. This trend is not only a threat to drinking water reserves and major ecosystems – dried freshwaters also pl
The latest major report from the UN's Intergovernmental Panel on Climate Change was issued in October. The message was dramatic, but unequivocal: The world's emissions must halve over the next 12 years if we are to avoid the worst consequences of global warming. Unfortunately, we are as yet poorly positioned to reach even the less ambitious two degree target set by the Paris Agreement.
Internet shopping has grown massively, especially now that free delivery and returns, with multiple ways of making them, are the norm. You can order a number of variations of the same piece of clothing, for example, and then just send back the unwanted ones.
A new method for local early tsunami warnings could give at-risk residents more accurate predictions about wave speed and height. On a Friday afternoon in the spring of 2011, the Tōhoku-Oki earthquake shook northeastern Japan for six minutes and shifted the country's main island by eight feet. Minutes later, residents began receiving tsunami warnings through broadcast media, mobile phones, and si
Lab-on-a-chip (LOC) technology could transform medicine in ways comparable with the microprocessor revolution—once it can be manufactured in a scalable, cost-effective way. Researchers in Sweden now report a development that could hasten this revolution.
How can you recycle the world's stockpiles of treated sewage sludge and boost sustainability in the construction industry, all at the same time? Turn those biosolids into bricks.
To sort or not to sort, that is the question. Lots of people wonder whether it's really worth their time and effort to separate, wash and store recyclable materials – especially if it takes more energy to recycle, or if the plastics sent for recycling end up in overseas landfill. The truth is, the issue is complex, and even experts can't agree on the economic and environmental benefits of recyclin
In Europe, people are more reserved regarding robots than they were five years ago. This is shown in a new study published by scientists from Linz and Würzburg.
Video games have long been criticised for encouraging violence and antisocial behaviour. And parents often express concern that they could have detrimental effects on their child's learning abilities.
Humans 1, Robots 0 Advances in artificial intelligence and automation cast such a long shadow over the workforce that a former Microsoft executive recently predicted that technology will displace 40 percent of workers within 15 years. But a new survey presented Monday to the World Economic Forum suggests that most workers remain surprisingly optimistic in the face of automation: worldwide, most w
När det högerextrema partiet Alternativ för Sverige (AFS) tryckte upp tröjor med Migrationsverkets logotyp och ordet "återvandringsverket" intill i somras polisanmäldes det av myndigheten.
Långa sjukskrivningsperioder, ensamhet och svårt att ha råd med egen lägenhet. För kvinnor med endometrios kan behandlingar ofta pågå under långa perioder och vara förknippat med svårigheter att jobba. En ny studie vid Akademiska sjukhuset ska pröva mer aktiva rehabiliteringsinsatser för att möjliggöra för fler att komma tillbaka i arbete.
Industries rely on catalysts. These materials lessen the energy used in refining oil, manufacturing plastics, and much more. Catalysts can also mean less waste is produced. Better catalysts would benefit industries and the environment. In a perspective article in Nature Catalysis, a trio of researchers offer a unique view into catalyst design. They showed that optimizing electric fields in computa
Ted Florence is ready for his family trip to Botswana. He has looked up his hotel on Google Maps and downloaded a digital map of the country to his phone. He has also packed a large paper map. "I travel all over the world," says Florence, the president of the international board of the International Map Industry Association and Avenza, a digital map software company. "Everywhere I go, my routine i
A collaborative research effort between the Departments of Chemistry at the University of Oxford (United Kingdom) and University of Jyväskylä (Finland) has resulted in the discovery of a gold compound exhibiting nucleophilic behaviour hitherto unknown for molecular gold. The research enables new opportunities in applying gold compounds, for example, as catalysts in novel chemical reactions.
Malariaforskaren Anders Björkman, professor vid Karolinska institutet, beskriver tiden kring år 2000 som ett katastrofläge vad gäller utbredningen av malaria i världen. Katastrofläget triggade en stor global insats som fick skjuts av nya former av läkemedel samt en bred utdelning av impregnerade myggnät och besprutning mot malariamyggor inomhus. Resultatet blev en halvering av malariautbredningen
Genom att analysera data från Riksskogstaxeringen kan forskare på Umeå universitet, SLU och Göteborgs universitet bidra till mer konkreta råd om hur blandskog kan ge bättre trädtillväxt. Deras resultat visar tydligt att det är viktigt att blanda rätt trädslag. Resultatet publiceras i Nature Plants och kan sägas vara en uppföljare på en tidigare studie 2013 i Nature Communications. – Då visade vi
– Det geologiska materialen spelar samma grundläggande roll i våra liv nu precis som de gjorde förr, då stenar kunde användas för att skapa jaktverktyg, bygga solida skydd eller magnifika monument, säger Claudia Sciuto. Claudia Sciuto menar att samspelet mellan samhällens utveckling och geologiska resurser blir tydligt när man börjar undersöka livsmiljöer. Till exempel så bor vi i hus av sten, fä
– En tryckt bild kan bestå av flera lager tryckfärg och fördelningen inom varje lager påverkar bildens kvalitet, säger Sofia Thorman, forskare inom tryckertteknik som undersökt hur ett kartongmaterials förmåga att ta upp vätska, i form av tryckfärg, påverkar flexotryck. Hur jämnt färgen överförs och fördelas påverkas bland annat av den kartong eller det papper den är tryckt på. För att säkerställ
A technique that enables researchers to watch the motion of individual molecules within a polymer has been developed by KAUST: it challenges current thinking about polymer physics and could lead to new materials that can be tailored for specific tasks.
In rechargeable batteries, ultra-thin material sheets are crucial. Reactions occur at the interfaces of these sheets. Scientists want to track these reactions. They need a way to probe buried interfaces with elemental specificity. In principle, soft X-ray spectroscopy techniques could be a powerful tool for probing such complex interfaces. However, these techniques haven't been available due to li
Governments across the world came together in Marrakesh this past December to ratify a pact to improve cooperation on international migration. Among other objectives, the Global Compact for Migration seeks to use "accurate and disaggregated data as a basis for evidence-based policies." How can machine learning technologies help with deeply polarizing societal issues like migration?
The quest for climate scientists to be able to bridge the gap between shorter-term seasonal forecasts and long-term climate projections is coming of age, a study shows.
In 2016, a small group of doctors gathered in a Seattle conference room to find a better way to help people die. They included physicians at the forefront of medical aid in dying—the practice of providing terminal patients with a way to end their own life. And they were there because the aid-in-dying movement had recently run into a problem. The two lethal medications used by most patients for de
Ett plan som var på väg från Moskva till den ryska staden Surgut tvingades att nödlanda. Detta efter att en bråkig passagerare krävt att planet skulle byta kurs och styra mot Afghanistan. Enligt uppgifter till den ryska statliga nyhetsbyrån Ria, ska passageraren ha varit berusad.
Forest giants have long been considered the oldest trees in tropical forests, but new research shows small trees can also be very old, and can even grow older than the big ones.
Den 29-årige mannen dömdes av Linköpings tingsrätt till fängelse i två år för våldtäkt. Göta hovrätt friade mannen. Nu får han 317.000 i skadestånd av Justitiekanslern, JK, för de dryga fyra månader han satt häktad förra året.
Syrien är det land där "vanliga" medborgare löper störst risk att dödas, följt av Nigeria och Jemen. Men civila lever farligt också i Filippinerna, visar en sammanställning från en grupp oberoende statistiker och konfliktforskare.
Betalkortsjätten Mastercard tilldöms böter på 570,6 miljoner euro, motsvarande 5,6 miljarder svenska kronor, av EU-kommissionen för brott mot EU:s konkurrensregler.
Forest giants have long been considered the oldest trees in tropical forests, but new research shows small trees can also be very old, and can even grow older than the big ones.
A combined team of researchers from Northwestern University and the University of Notre Dame has found that when it comes to the usefulness of social networks in finding good positions after graduation, gender matters. In their paper published in Proceedings of the National Academy of Sciences, the group describes their study involving analysis of student emails and what it revealed.
Author Correction: Information-based autonomous reconfiguration in systems of interacting DNA nanostructures Author Correction: Information-based autonomous reconfiguration in systems of interacting DNA nanostructures, Published online: 22 January 2019; doi:10.1038/s41467-019-08439-z Author Correction: Information-based autonomous reconfiguration in systems of interacting DNA nanostructures
Synthetic molecules are essential for many products, including medicines, crop protection agents and special materials such as Teflon. These molecules have several components, which can be combined in a variety of ways, resulting in different properties. Both so-called piperidines and fluorinated groups are particularly important.
A new methodology to improve machine translation has become available this month through the University of Amsterdam. The project DatAptor, funded by NWO/STW, increasingly advances translation machines by selecting data sets.
Far below the ocean floor, sediments are teeming with bizarre zombie-like microbes. Although they're technically alive, they grow in slow motion, and can take decades for a single cell to divide—something their cousins at the surface do in a matter of minutes. A new study from the Woods Hole Oceanographic Institution (WHOI) is beginning to pick apart how they survive by examining their source of "
Betalkortsjätten Mastercard tilldöms böter på 570,6 miljoner euro, motsvarande 5,6 miljarder svenska kronor, av EU-kommissionen för brott mot EU:s konkurrensregler.
Isabelle Haak blir allt hetare på den storinternationella marknaden och enligt uppgifter är volleybollspelaren redan klar för världens kanske allra bästa klubb.
DxOMark's Mobile scores are often used to compare the overall image quality of current-model phones. However, it only tests the main camera. With the growing popularity of selfies, DxOMark has …
Around 30 percent of the world's biosolids are stockpiled or sent to landfill each year, while over 3 billion cubic meters of clay soil is dug up for the global brickmaking industry. Using biosolids in bricks offers an innovative solution to these environmental challenges.
På kort tid har två Icabutiker i Huddinge slutat som postombud. Det har fått flera lokalinvånare att protestera. För en del äldre personer innebär nedläggningen att det blir svårare att ta sig till postombudet. – Jag kommer bli tvingad att sluta sända efter varor som kommer med posten, säger Bitten Folkesdotter, 67 år.
One of the "holy grails" of neuroscience is the ability to scan a brain and create a complete detailed map, including all networks and connections. Scientists use several techniques, all with their own drawbacks, and the process is very slow – it can take a year to completely scan a single fly brain. A collaboration of scientists, however, report in Science that they have developed a new techniqu
Space They're called "supermassive" for a reason. About 10 percent of all supermassive black holes we can observe seem to be, at any given time, actively accreting matter—feeding on cosmic gas from their surroundings.
How Estonia blazed a trail in science How Estonia blazed a trail in science, Published online: 22 January 2019; doi:10.1038/d41586-019-00209-7 A small nation found strength in research after joining the European Union.
Riccardo Giacconi (1931-2018) Riccardo Giacconi (1931-2018), Published online: 22 January 2019; doi:10.1038/d41586-019-00216-8 Astronomer who opened the X-ray window onto the Universe.
Visually impaired creators are a lifeline for those who share their disability—and they're educating and making allies of sighted people along the way.
Have you ever thought about killing someone? Not plotted it out, necessarily, but fantasized about offing a bully or boss or boyfriend in a desperate search for catharsis? I wouldn't encourage you to spend too much time dwelling on all the rejections and confrontations that might have led to such an angry moment, but I do need you to think about those things briefly. I also won't ask you to name
Kamala Harris is a half-Jamaican, half-Indian woman from Oakland, California, the daughter of two UC Berkeley grad students. She went to high school in Montreal. She married a wealthy, white, Jewish lawyer later in life, and didn't have kids of her own. When she's not in Washington, she splits her time between San Francisco and Los Angeles. Her first name is Sanskrit and gets mispronounced all th
Julia Tymosjenko ställer upp i det ukrainska presidentvalet. Det meddelade den tidigare premiärministern vid en sittning med sitt nationalistiska parti Fosterlandet.
The beginning of the 2019 school year will be a time of planning and crystal-gazing. Teachers will plan their instructional agenda in a general way. Students will think about another year at school. Parents will reflect on how their children might progress this year.
Reports that Irukandji jellyfish might be moving south may be panicking people unnecessarily. It's almost impossible to tell where the tiny jellyfish are along our coast, but that could change with new technology that can "sweep" the ocean for traces of DNA.
Reports that Irukandji jellyfish might be moving south may be panicking people unnecessarily. It's almost impossible to tell where the tiny jellyfish are along our coast, but that could change with new technology that can "sweep" the ocean for traces of DNA.
Sedan Nya Zeelands premiärminister Jacinda Ardern tillrädde i oktober 2017 har hon i intervjuer tvingats svara på flera frågor om sitt privatliv. I en intervju i BBC under måndagen fick hon frågan om hon kommer att fria till sin partner, rapporterar The Guardian.
Sveriges nya kulturminister Amanda Lind (MP) är den minister som det talats mest om på sociala medier sedan den nya regeringen tillträtt under måndagen. Fem av de tre mest delade artiklarna i svenska medier under det senaste dygnet handlar om Lind och hennes hyllning till den före detta ministern och partikamraten Mehmet Kaplan.
Robust, intelligent robots that react to their surroundings are being developed to work in situations that are too dangerous for humans, such as cleaning up Europe's decades-old radioactive waste or helping during a nuclear emergency.
Decades of psychological research have emphasized the biases and errors in human judgment and decision-making. But a new approach that borrows an idea from the field of artificial intelligence is challenging this view, suggesting that people are much less irrational than they've been led to believe.
Research at the University of Arkansas on membrane proteins could lead to better development and testing of drugs. Chemistry researchers studied a type of membrane protein that expels drugs from a cell, contributing to drug resistance. They found that the lipid composition of the cell membrane has an effect on the behavior of these proteins, which should be taken into account when testing drugs th
He Jiankui has been dismissed by the Southern University of Science and Technology in Shenzhen after a preliminary investigation by provincial authorities