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HJERNEN PÅVIRKES AF HIV-INFEKTION ELLER MÅSKE AF BEHANDLINGEN AF INFEKTIONEN. White matter in the brain can shrink as a result of an HIV infection. However, ART drugs commonly used to treat HIV, can also cause white matter shrinkage. Researchers are therefore trying to discern the effects HIV has on the brain compared to the effects that ART drug treatment has, to fully understand the risks of each.
Congratulations, tennis. You've won neither the battle nor the war with Naomi Osaka, but you have just bullied one of the biggest stars in your sport into quitting a major tournament that could use the publicity she would have brought to it. Osaka, the second-ranked woman in international tennis and the highest-paid female athlete in the world, withdrew from the French Open after a power struggle
China's first module of its upcoming Tiangong space station makes use of ion drives, technology that could vastly cut down the time it takes to travel to Mars — and greatly reduce the amount of fuel needed to make that trip, as the South China Morning Post reports . The module, called Tianhe and launched in late April , is powered by four ion thrusters that use electricity to accelerate ions as a
Thanks Obama If we don't start to take urgent action to prevent the worst impacts of climate change today, then we may experience the end of our species within a century, former President Barack Obama said in a new interview. Obama made the argument in a wide-ranging chat , on The New York Times ' podcast The Ezra Klein Show, that also broached partisan politics, racial justice, the impacts of hi
Former President Donald Trump has been speaking publicly about running to reclaim the White House in 2024, but he's also reportedly expecting to make a comeback before then. "Trump has been telling a number of people he's in contact with that he expects he will get reinstated by August," Maggie Haberman, the New York Times ' ace Trump reporter, tweeted Tuesday . There's no such thing as reinstati
Russia and possibly China have developed technology capable of injuring brain and a US company made a prototype in 2004 Portable microwave weapons capable of causing the mysterious spate of "Havana Syndrome" brain injuries in US diplomats and spies have been developed by several countries in recent years, according to leading American experts in the field. A US company also made the prototype of
Meat Hack Hackers managed to force the shutdown of all the US-based beef plants of the world's largest meat producer JBS SA, according to Bloomberg . The hack managed to disrupt almost a quarter of the total US supply of beef. The company's meatpacking operations were also affected. It's yet another stark reminder that essential infrastructure — and even the national food supply — remains incredi
A team of scientists say they have developed an experimental lozenge, kind of like a breath mint, that could regrow your tooth enamel and strengthen your teeth. Researchers from the University of Washington are preparing to launch clinical trials to test out the lozenges, which are coated with genetically-engineered protein building blocks that are expected to bind to the user's teeth and add a t
Gabriella Demczuk A s Francis Collins, the director of the National Institutes of Health, recounted the moment, his eyes welled with tears. A few months before, he and his colleague Anthony Fauci had confided in each other their hopes for a COVID-19 vaccine. The FDA had set the threshold for approval at 50 percent efficacy, roughly what the flu vaccine achieves each year. They would have been qui
In the conservative book world, nothing is supposed to set off a gold rush like a new Democratic president. Ever since Bill Clinton inspired a wave of right-wing best sellers in the '90s, publishing houses that cater to Republican readers have learned to make the most of a new villain in the Oval Office, churning out polemics and exposés that aim to capitalize on fear of the new president. Unless
I n Iceland, where I live, we have an eruption now. For the first time in my memory, we here in Reykjavík can see the glow of a volcano from our windows, like a sunrise just across the bay. We are witness to Earth's most powerful forces at work: the birth of a mountain. But to observe a volcanic eruption is not to see something far greater than ourselves. To visit a volcano is to look in a mirror
Young people across Europe reveal how the pandemic has made them impatient for systemic change after bearing brunt of fallout 'So many revolutions to lead': Europe's Gen Z on their post-Covid future How the Covid shock has radicalised Generation Z Covid-19 policies risk leaving psychological and socioeconomic scars on millions of young people across Europe, with far-reaching consequences for them
Rates of mucormycosis were high even before the pandemic, and now the country is running out of antifungal drugs Covid-19 has killed millions around the world, but for some who are lucky enough to survive the infection, the nightmare is not over: adding insult to injury are deadly fungal infections that follow in the wake of the virus. Making matters worse, inequities that long predated the pande
Seen through a microscope, the hairy, slipper-shaped aquatic microbe Paramecium bursaria often looks as if it is bursting at the seams with tiny green marbles. Yet the verdant spheres are a different organism altogether: Chlorella, an alga that occasionally takes refuge within the confines of the paramecium's cushy cell membrane. Each species can survive on its own, but the two frequently and…
Teslaburger Electric automaker Tesla may be planning an unusual pivot in its business model: burger joints or other restaurants next to its network of charging stations. Tesla recently filed a number of trademarks in the restaurant industry, Electrek reports , suggesting that Tesla-branded restaurants could be coming soon. It's a reasonable move for the company — drivers are essentially captive a
Out With the Old A pair of Russian cosmonauts spent seven hours early Wednesday morning preparing a docking module of the International Space Station for eventual dismemberment. It was the first time that cosmonauts Oleg Novitsky and Pyotr Dubrov have ventured out into the unprotected vastness of space — and another sign that Russia is still committed to the aging space lab for the time being, de
University of South Florida researchers recently developed a novel approach to mitigating electromigration in nanoscale electronic interconnects that are ubiquitous in state-of-the-art integrated circuits. This was achieved by coating copper metal interconnects with hexagonal boron nitride (hBN), an atomically-thin insulating two-dimensional (2-D) material that shares a similar structure as the "w
Anti-vaxxers are attacking COVID-19 mandates in state legislatures and in court even as COVID-19 cases numbers and hospitalizations remain high among the unvaccinated. The post first appeared on Science-Based Medicine .
Researchers have developed a new process using machine learning algorithms to match the signals of a microbe's metabolites with its genomic signals and identify which likely correspond to a natural product. Knowing that, researchers are better equipped to isolate the natural product to begin developing it for a possible drug and possibly reinvigorate the search for natural product drugs.
The mystery of why salamanders can regenerate a lost limb, but adult mammals cannot has fascinated observers for thousands of years. Now, a team of scientists has come a step closer to unraveling that mystery with the discovery of differences in molecular signaling that promote regeneration in the axolotl, a highly regenerative salamander, while blocking it in the adult mouse.
An analysis of sediment cores from the Bering Sea has revealed a recurring relationship between warmer climates and abrupt episodes of low-oxygen 'dead zones' in the subarctic North Pacific Ocean over the past 1.2 million years. The findings provide crucial information for understanding the causes of low oxygen or 'hypoxia' in the North Pacific and for predicting the occurrence of hypoxic conditio
Scientists have created a cybersecurity technology called Shadow Figment that is designed to lure hackers into an artificial world, then stop them from doing damage by feeding them illusory tidbits of success. The aim is to sequester bad actors by captivating them with an attractive — but imaginary — world. The technology is aimed at protecting physical targets — infrastructure such as building
As its name suggests, dark matter — material which makes up about 85% of the mass in the universe — emits no light, eluding easy detection. Its properties, too, remain fairly obscure. Now, a theoretical particle physicist have shown how theories positing the existence a new type of force could help explain dark matter's properties.
Researchers have used a new optical dating technique to directly constrain the age of prehistoric stone artefacts from an archaeological site in southern Tibet. The findings are more than 5,000 years old and thus the oldest evidence of human presence in this part of the Tibetan Plateau.
The organization of the human genome relies on physics of different states of matter – such as liquid and solid. The findings reveal how the physical nature of the genome changes as cells transform to serve specific functions and point to new ways to potentially better understand disease and to create improved therapies for cancer and genetic disorders.
June 5, 2021 marks the 40th anniversary of the first report of AIDS cases and the onset of the American AIDS epidemic. In a new, thought-provoking paper in the New England Journal of Medicine, Columbia professors capture the experiences of the physicians who were central to the AIDS epidemic. In the words of the doctors, they relay what it meant to look back after 40 years and how they "aged toget
A phase 3 clinical trial co-led by Mount Sinai researchers is the first to show that immunotherapy after surgery to remove bladder cancer can reduce the risk of relapse for patients who are at high risk of their cancer returning in a deadly metastatic form, according to results published in The New England Journal of Medicine. The immunotherapy nivolumab was used as an adjuvant therapy, which is g
Unless you live under a rock, it's unlikely that this is the first you've heard of cryptocurrencies like Bitcoin or Ethereum. But you might have assumed that it's too late for you to get into this field in any effective way because you've already missed the boat. Fortunately, you'd be wrong, and Kraken is the crypto trading platform that gives everyone, regardless of skill or experience level, wh
Hydrogels are commonly used inside the body to help in tissue regeneration and drug delivery. However, once inside, they can be challenging to control for optimal use. A team of researchers in the Department of Biomedical Engineering at Texas A&M University is developing a new way to manipulate the gel — by using light.
People of color are more than twice as likely to die after a traumatic brain injury as white people, according to a new retrospective review from Oregon Health & Science University. The researchers found no bias in the treatment patients received while in the hospital. Rather, they say the findings highlight underlying disparities in health that disproportionately affect people of color.
NASA announced today that it has selected two new missions to Venus, Earth's closest planetary neighbor. The goals of the missions, named DAVINCI+ (Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging) and VERITAS (Venus Emissivity, Radio Science, InSAR, Topography, and Spectroscopy), are to gain a deeper understanding into how Venus turned into the hell hole it is today — d
University of Maine researchers found that culture helps humans adapt to their environment and overcome challenges better and faster than genetics. Tim Waring and Zach Wood found that humans are experiencing a "special evolutionary transition" in which the importance of culture is surpassing the value of genes as the primary driver of human evolution. Due to the group-orientated nature of culture,
Older people with type 1 diabetes who have been to the hospital at some point for both low and high blood sugar levels may be at six times greater risk for developing dementia years later. The research is published in the June 2, 2021, online issue of Neurology®, the medical journal of the American Academy of Neurology.
Deep brain stimulation continues to be effective in people with Parkinson's disease 15 years after the device is implanted, according to a study published in the June 2, 2021, online issue of Neurology®, the medical journal of the American Academy of Neurology. Researchers found that compared to before deep brain stimulation, study participants continued to experience significant improvement in mo
When pigs get hit with significant illnesses during key stages of pregnancy, their immune response may negatively affect developing piglets, making them less productive on the farm. New research from the University of Illinois shows that when those piglets—especially males—experience a second stressor in early life, they are at higher risk of neurodevelopmental and other neurological anomalies, pu
Officials from California, New York and other states urged the Environmental Protection Agency on Wednesday to allow California to set its own automobile tailpipe pollution standards, which would reverse a Trump administration policy and could help usher in stricter emissions standards for new passenger vehicles nationwide.
Spiders avoid building webs near European fire ants, their natural predators, by sensing the chemicals they give off in the environment, researchers have found. The findings give us a peek inside the enduring struggle between spiders and ants, and could lead to the development of natural repellents for homeowners worried about unwanted eight-legged guests.
The myriad processes occurring in biological cells may seem unbelievably complex at first glance. And yet, in principle, they are merely a logical succession of events, and could even be used to form digital circuits. Researchers have now developed a molecular switching circuit made of DNA, which can be used to mechanically alter gels, depending on the pH. DNA-based switching circuits could have a
Researchers from Carnegie Mellon University's Computational Biology Department in the School of Computer Science have developed a new process that could reinvigorate the search for natural product drugs to treat cancers, viral infections and other ailments.
Many salamanders can readily regenerate a lost limb, but adult mammals, including humans, cannot. Why this is the case is a scientific mystery that has fascinated observers of the natural world for thousands of years.
How much do you think about your future self? If your answer is not much, you're not alone. It can be difficult to plan for a version of yourself you haven't met yet, says psychologist Meg Jay. Sharing how to close the empathy gap between you and your future selves, she outlines courageous questions to ask about how your present and future can align, so you can begin to achieve your goals. (This c
Nano-sized particles have been engineered in a new way to improve detection of tumors within the body and in biopsy tissue, a research team reports. The advance could enable identifying early stage tumors with lower doses of radiation.
Late Sunday night, after the fourth game of a playoff series between the Brooklyn Nets and Boston Celtics, the most talked-about video was not a high-definition highlight but a few frames of zoomed-in graininess. As Kyrie Irving—once a Celtic, now a Net, fresh off scoring 39 points in a Brooklyn rout—exited the court in Boston, a 21-year-old fan named Cole Buckley allegedly hurled a plastic water
This article contains mild spoilers for Cruella . "It's time to make some trouble. You in?" reads one of the posts promoting Cruella , Disney's prequel-meets-reconsideration of the classic One Hundred and One Dalmatians villain. The line is in keeping with the film: It's slick and witty and teasingly imprecise about what "trouble," in this context, might entail. Previous incarnations of Cruella d
All fish are not created equal, at least when it comes to nutritional benefits. This truth has important implications for how declining fish biodiversity can affect human nutrition, according to a computer modeling study led by Cornell and Columbia University researchers.
Dr. Anna Fagre, a researcher at CSU's Center for Vector-Borne Infectious Diseases, said detection of nucleic acid in bats in the wild indicates that they are naturally infected or exposed through the bite of infected mosquitoes.
It's strawberry season in many parts of the U.S, and supermarkets are teeming with these fresh heart-shaped treats. Although the bright red, juicy fruit can grow almost anywhere with lots of sunlight, production in some hot, dry regions is a challenge. Now, researchers have identified five cultivars that are best suited for this climate, which could help farmers and consumers get the most fragrant
Experts have experimentally measured the release of iron from the fecal pellets of krill and salps under natural conditions and tested its bioavailability using a natural community of microalgae in the Southern Ocean.
Nerve cells of the vagus nerve fulfill opposing tasks. The gut and the brain communicate with each other in order to adapt satiety and blood sugar levels during food consumption. The vagus nerve is an important communicator between these two organs. Researchers now took a closer look at the functions of the different nerve cells in the control center of the vagus nerve, and discovered something ve
An interdisciplinary team presents a laser-driven technology that enables them to create nanoparticles out of materials such as copper, cobalt and nickel oxides. At the usual printing speed, photoelectrodes are produced in this way, for example, for a wide range of applications such as the generation of green hydrogen.
The future of electronic displays will be thin, flexible and durable. One barrier to this, however, is that one of the most widely used transparent conductors for electronic displays—indium tin oxide (ITO)—doesn't perform as well on larger areas and can crack and break down with wear. Indium is also a rare earth mineral, which is relatively scarce, and the process to create ITO requires high energ
Don't look now, but you're surrounded. Really. Within arm's reach—probably even touching you—are troublesome, sticky, potentially even toxic, substances. Bad for the planet, permanent, maybe even bad for your health. They're in your shoes, in your phone, in your laptop, lurking in the folds of envelopes, on books, in the chair you're sitting in, the flooring beneath your feet, and in uncountable o
Researchers from Carnegie Mellon University's Computational Biology Department in the School of Computer Science have developed a new process using machine learning algorithms to match the signals of a microbe's metabolites with its genomic signals and identify which likely correspond to a natural product. Knowing that, researchers are better equipped to isolate the natural product to begin develo
The mystery of why salamanders can regenerate a lost limb, but adult mammals cannot has fascinated observers for thousands of years. Now, a team of scientists led by James Godwin, Ph.D., of the MDI Biological Laboratory in Bar Harbor, Maine, has come a step closer to unraveling that mystery with the discovery of differences in molecular signaling that promote regeneration in the axolotl, a highly
In patients with insulin-treated type 2 diabetes, the use of continuous glucose monitors is associated with better blood sugar control and fewer visits to the emergency room for hypoglycemia, a Kaiser Permanente study published June 2, 2021 in the journal JAMA found.
Humans can observe what and where something happens around them with their hearing, as long as sound frequencies lie between 20 Hz and 20 000 Hz. Researchers have now developed a new audio technique that enables people to also hear ultrasonic sources that generate sound at frequencies above 20,000 Hz with simultaneous perception of their direction.
Laser physicists have built a novel hybrid plasma accelerator. Particle accelerators have become an indispensable tool for studies of the structure of matter at sub-atomic scales, and have important applications in biology and medicine.
Researchers have identified a protein that helps tumors evade the immune system and, in certain types of cancers, is linked to a poorer chance of survival. The protein could become a target for future cancer treatments.
A study provides new insights into the pollution of the world's oceans with plastic waste. The modelling shows that most of the plastic does not end up in the open ocean, but beaches or drifts in the water near the coast.
Zebrafish exposed to the leading cannabinoids found in cannabis in the earliest stages of development suffer a significant drop in neural activity later in life, according to a new study that has implications for prenatal development in humans.
In its larval stage, Lucilia sericata looks unassuming enough. Beige and millimeters long, a bottle-fly grub may lack good looks, but it contains a sophisticated set of tools for eating dead and dying human flesh. The maggots ooze digestive enzymes and antimicrobials to dissolve decaying tissue and to kill off any unwanted bacteria or pathogens. Lacking teeth, they use rough patches on their exte
Blue Abyss applies for permission to build £150m centre with pool that would reach depths of 50m Plans have been submitted to build the world's deepest artificial pool in Cornwall to train astronauts and help advance undersea robotics. The project would be 40 metres by 50 metres at the surface, with a 16-metre wide shaft plunging to 50 metres at its lowest point – nearly as deep as Nelson's Colum
Elon Shark Seemingly innocuous tweets by one of the richest people in the world should arguably be met with a dismissive shrug shake of the head. But when it's Elon Musk, errant posts can send entire markets into a tailspin. In the latest instance, the Tesla CEO sent shares of Samsung Publishing soaring by more than ten percent CNBC reports . How? He tweeted about the children's musical blockbust
Spiders avoid building webs near European fire ants, their natural predators, by sensing the chemicals they give off in the environment, Simon Fraser University researchers have found.The findings, published recently in Royal Society Open Science, give us a peek inside the enduring struggle between spiders and ants, and could lead to the development of natural repellents for homeowners worried abo
Intrinsic mechanisms such as temporal series of transcription factors orchestrate neurogenesis from a limited number of neural progenitors in the brain. Extrinsic regulations, however, remain largely unexplored. Here we describe a two-step glia-derived signal that regulates neurogenesis in the Drosophila mushroom body (MB). In a temporal manner, glial-specific ubiquitin ligase…
Tumors often secrete wasting factors associated with atrophy and the degeneration of host tissues. If tumors were to be affected by the wasting factors, mechanisms allowing tumors to evade the adverse effects of the wasting factors must exist, and impairing such mechanisms may attenuate tumors. We use Drosophila midgut tumor…
Democratic stability depends on citizens on the losing side accepting election outcomes. Can rhetoric by political leaders undermine this norm? Using a panel survey experiment, we evaluate the effects of exposure to multiple statements from former president Donald Trump attacking the legitimacy of the 2020 US presidential election. Although exposure…
Vaccine adjuvants enhance and prolong pathogen-specific protective immune responses. Recent reports indicate that host factors—such as aging, pregnancy, and genetic polymorphisms—influence efficacies of vaccines adjuvanted with Toll-like receptor (TLR) or known pattern-recognition receptor (PRR) agonists. Although PRR independent adjuvants (e.g., oil-in-water emulsion and saponin) are emerging, th
Proteins require high developability—quantified by expression, solubility, and stability—for robust utility as therapeutics, diagnostics, and in other biotechnological applications. Measuring traditional developability metrics is low throughput in nature, often slowing the developmental pipeline. We evaluated the ability of 10 variations of three high-throughput developability assays to predict th
For years, STEM programs have tried to attract Black grads and undergrads. There's a new push to retain these students—and emulate the university program that seems to have had the most success. The science curriculum at Akeema Onalaja's high school in South Los Angeles, CA, ended with biology. Yet she…
Why Don't We Sing This Song All Together? Every animal communication enthusiast has a story about a peak experience. It might be hearing whales sing while snorkeling or seeing fireflies flash synchronously in their thousands. My peak experience was when I first heard wrens sing antiphonal duets. It was my…
Researchers have developed a vaccine that protects animals from Salmonella. These bacteria often escape the effects of vaccination by genetically modifying their protective coat. The researchers have succeeded in manipulating this process to lure the bacteria into an evolutionary trap.
Scientists have found how platelets interacting with white blood cells contribute to the resolution of bacterial lung inflammation in mice. The results may help in the search for therapies to specifically regulate inflammation.
Short selling often gets a bad rap because it is a type of trade that bets against the success of a firm. In essence, short selling allows investors to borrow stock from a broker to sell into the market with the hope of buying the stock back at a cheaper price, thus, profiting on the difference between the sell and buy prices. Because of this practice, short selling is sometimes seen as a controve
As the country gets vaccinated and begins to reopen, testing remains a key element of safe interactions. Rapid testing for COVID-19 has become more common and accessible, including over-the-counter (OTC) tests approved by the U.S. Food and Drug Administration (FDA). Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, puts five of these at-home rapid tests
Do firms respond to tougher competition by searching for completely new technological solutions (exploration), or do they work to defend their position by improving current technologies (exploitation)?
Researchers have demonstrated "giant flexoelectricity" in soft elastomers that could improve robot movement range and make self-powered pacemakers a real possibility. In a paper published this month in the Proceedings of the National Academy of Sciences, scientists from the University of Houston and Air Force Research Laboratory explain how to engineer ostensibly ordinary substances like silicone
Whether they are in the technology or oil sector, selling shoes or healthcare products, for many companies, green is the new black. While maximizing profit might have been the sole priority for most businesses a decade ago, these days it is common for mission-oriented companies to pursue the "triple bottom line" of people, planet and profit, particularly through corporate social responsibility (CS
Scientists have created a cybersecurity technology called Shadow Figment that is designed to lure hackers into an artificial world, then stop them from doing damage by feeding them illusory tidbits of success. The aim is to sequester bad actors by captivating them with an attractive–but imaginary–world. The technology is aimed at protecting physical targets–infrastructure such as buildings, the
A new study reveals that B cells can produce antibodies against the H1N1 influenza virus that also neutralize various other influenza strains, marking a development that could inform research into potential universal flu vaccines.
Researchers at Washington University School of Medicine in St. Louis and Cornell University have collaborated to implant insulin-secreting beta cells grown from human stem cells into mice with diabetes, to normalize their blood sugar.
Individuals at higher risk of developing pancreatic cancer could be identified earlier using machine learning (ML) techniques which would result in a greater number of patients surviving the disease, suggests a new study published in PLOS ONE.
In a six-month study of more than 1,000 Americans, R. Kelly Garrett and Robert Bond found that U.S. conservatives were less able to distinguish truth from falsehoods in 20 viral political news stories that appeared online between January and July 2019. Differences in the political orientation of these stories may help explain this observation, the researchers note, writing that "we find that high-
While echolocation is well known in whale or bat species, previous research has also indicated that some blind people may use click-based echolocation to judge spaces and improve their navigation skills.Equipped with this knowledge, a team of researchers, led by Dr Lore Thaler, of Durham University, UK, delved into the factors that determine how people learn this skill.
Researchers at Kyoto University's Institute for Cell-Material Sciences (iCeMS) have developed a new approach to speed up hydrogen atoms moving through a crystal lattice structure at lower temperatures. They reported their findings in the journal Science Advances.
Conservatives are less able to distinguish political truths from falsehoods than liberals, mainly because of a glut of right-leaning misinformation, a new national study conducted over six months shows.Researchers found that liberals and conservatives in the United States both tended to believe claims that promoted their political views, but that this more often led conservatives to accept falseho
Corals co-evolve with the microscopic algae that live within their cells, according to a new study. The study reveals that genetic differences within a species of these microalgal symbionts correspond to the coral species they inhabit, a discovery that could have implications for the conservation of endangered corals . " Acroporid corals are some of the primary reef-building species in the Caribb
Archaeological surface assemblages composed of lithic scatters comprise a large proportion of the archaeological record. Dating such surface artifacts has remained inherently difficult owing to the dynamic nature of Earth-surface processes affecting these assemblages and because no satisfactory chronometric dating technique exists that can be directly applied to constrain the timing of artifact m
DNA methylation is a major epigenetic mechanism critical for gene expression and genome stability. In plants, domains rearranged methyltransferase 2 (DRM2) preferentially mediates CHH (H = C, T, or A) methylation, a substrate specificity distinct from that of mammalian DNA methyltransferases. However, the underlying mechanism is unknown. Here, we report structure-function characterization of DRM2
H3K9 methylation maintains cell identity orchestrating stable silencing and anchoring of alternate fate genes within the heterochromatic compartment underneath the nuclear lamina (NL). However, how cell type–specific genomic regions are specifically targeted to the NL is still elusive. Using fibro-adipogenic progenitors (FAPs) as a model, we identified Prdm16 as a nuclear envelope protein that an
In an era of major environmental changes, understanding corals' resistance to bleaching is as crucial as it is challenging. A promising framework for inferring corals' trophic strategies from Stable Isotope Bayesian Ellipses has been recently proposed to this end. As a contribution to this framework, we quantify a risk of bias inherent in its application and propose three alternative adjustments.
Despite the remarkable advances in therapeutics for rheumatoid arthritis (RA), a large number of patients still lack effective countermeasures. Recently, the reprogramming of macrophages to an immunoregulatory phenotype has emerged as a promising therapeutic strategy for RA. Here, we report metabolically engineered exosomes that have been surface-modified for the targeted reprogramming of macroph
Ever since the first observation of a photovoltaic effect in ferroelectric BaTiO 3 , studies have been devoted to analyze this effect, but only a few attempted to engineer an enhancement. In conjunction, the steep progress in thin-film fabrication has opened up a plethora of previously unexplored avenues to tune and enhance material properties via growth in the form of superlattices. In this work
Achieving strong adhesion of bioadhesives on wet tissues remains a challenge and an acute clinical demand because of the interfering interfacial water and limited adhesive-tissue interactions. Here we report a self-gelling and adhesive polyethyleneimine and polyacrylic acid (PEI/PAA) powder, which can absorb interfacial water to form a physically cross-linked hydrogel in situ within 2 seconds due
The idea that U.S. conservatives are uniquely likely to hold misperceptions is widespread but has not been systematically assessed. Research has focused on beliefs about narrow sets of claims never intended to capture the richness of the political information environment. Furthermore, factors contributing to this performance gap remain unclear. We generated an unique longitudinal dataset combinin
Strengthening of magnesium (Mg) is known to occur through dislocation accumulation, grain refinement, deformation twinning, and texture control or dislocation pinning by solute atoms or nano-sized precipitates. These modes generate yield strengths comparable to other engineering alloys such as certain grades of aluminum but below that of high-strength aluminum and titanium alloys and steels. Here
Van der Waals magnets provide an ideal playground to explore the fundamentals of low-dimensional magnetism and open opportunities for ultrathin spin-processing devices. The Mermin-Wagner theorem dictates that as in reduced dimensions isotropic spin interactions cannot retain long-range correlations, the long-range spin order is stabilized by magnetic anisotropy. Here, using ultrashort pulses of l
The emergence of SARS-CoV-2 antibody escape mutations highlights the urgent need for broadly neutralizing therapeutics. We previously identified a human monoclonal antibody, 47D11, capable of cross-neutralizing SARS-CoV-2 and SARS-CoV and protecting against the associated respiratory disease in an animal model. Here, we report cryo-EM structures of both trimeric spike ectodomains in complex with
The three-dimensional organization of chromatin contributes to transcriptional control, but information about native chromatin distribution is limited. Imaging chromatin in live Drosophila larvae, with preserved nuclear volume, revealed that active and repressed chromatin separates from the nuclear interior and forms a peripheral layer underneath the nuclear lamina. This is in contrast to the cur
The introduction of chemical disorder by substitutional chemistry into ionic conductors is the most commonly used strategy to stabilize high-symmetric phases while maintaining ionic conductivity at lower temperatures. In recent years, hydride materials have received much attention owing to their potential for new energy applications, but there remains room for development in ionic conductivity be
Clinical use of tissue plasminogen activator (tPA) in thrombolytic therapy is limited by its short circulation time and hemorrhagic side effects. Inspired by fibrinogen binding to activated platelets, we report a fibrinogen-mimicking, multiarm nanovesicle for thrombus-specific tPA delivery and targeted thrombolysis. This biomimetic system is based on the lipid nanovesicle coated with polyethylene
Hydrogel coatings pave an avenue for improving the lubricity, biocompatibility, and flexibility of solid surfaces. From the viewpoint of practical applications, this work establishes a scalable method to firmly adhere hydrogel layers to diverse solid surfaces. The strategy, termed as renatured hydrogel painting (RHP), refers to adhering dehydrated xerogel to a surface with appropriate glues, foll
The merozoite surface protein 1 (MSP-1) is the most abundant protein on the surface of the erythrocyte-invading Plasmodium merozoite, the causative agent of malaria. MSP-1 is essential for merozoite formation, entry into and escape from erythrocytes, and is a promising vaccine candidate. Here, we present monomeric and dimeric structures of full-length MSP-1. MSP-1 adopts an unusual fold with a la
Several North Pacific studies of the last deglaciation show hypoxia throughout the ocean margins and attribute this phenomenon to the effects of abrupt warming and meltwater inputs. Yet, because of the lack of long records spanning multiple glacial cycles and deglaciation events, it is unclear whether deoxygenation was a regular occurrence of warming events and whether deglaciation and/or other c
Pediatric high-grade gliomas (pHGGs), including glioblastoma multiforme (GBM) and diffuse intrinsic pontine glioma (DIPG), are morbid brain tumors. Even with treatment survival is poor, making pHGG the number one cause of cancer death in children. Up to 80% of DIPGs harbor a somatic missense mutation in genes encoding histone H3. To investigate whether H3K27M is associated with distinct chromatin
Advanced technologies are required for generating human intestinal epithelial cells (hIECs) harboring cellular diversity and functionalities to predict oral drug absorption in humans and study normal intestinal epithelial physiology. We developed a reproducible two-step protocol to induce human pluripotent stem cells to differentiate into highly expandable hIEC progenitors and a functional hIEC m
Recently, we published a novel method used to assess the trophic niches of different coral species and demonstrated that their nutrition varied considerably, with some species highly dependent on their photosynthetic algal symbionts and others able to feed on plankton to meet energetic requirements. Adjustments to the use of this tool are necessary when it is applied to other scientific questions
NASA's James Webb Space Telescope is expected to expand the bounds of human knowledge, allowing us to investigate the most distant, and therefore oldest, objects in the universe. So far, all it's done is cost a lot of money and get delayed. Well, prepare for more of the same. NASA has confirmed that the telescope will not hit its planned October 31st launch. However, the delay might only be a few
Researchers have uncovered potential mechanisms by which microRNAs (miRNA) drive atherogenesis in a cell-type-specific manner. The study provides novel insight into the miRNA profiles of the main cell types involved in atherosclerosis.
The white-tailed sea eagle is known for reacting sensitively to human disturbances. Forestry and agricultural activities are therefore restricted in the immediate vicinity of the nests. However, these seasonal protection periods are too short in the German federal States of Brandenburg (until Aug. 31) and Mecklenburg-Western Pomerania (until July 31), as a new scientific analysis by a team of scie
A new study has identified a protein that could be the key to improving treatment outcomes after a heart attack. It suggests that protein kinase A (PKA) plays a role in heart muscle cell necrosis, a major type of cell death that commonly occurs after reperfusion therapy, the treatment used to unblock arteries and restore blood flow after a heart attack.
Scientists have uncovered a summertime climate pattern in and around the Arctic that could drive co-occurrences of European heatwaves and large-scale wildfires with air pollution over Siberia and subpolar North America.
A healthy diet around the time of conception through the second trimester may reduce the risk of several common pregnancy complications, suggests a new study. Expectant women in the study who scored high on any of three measures of healthy eating had lower risks for gestational diabetes, pregnancy-related blood pressure disorders and preterm birth.
Gender wage gaps are a well-documented issue, and expectations related to this phenomenon seem to be present even among university students discussing future employment, according to a study published June 2, 2021 in the open-access journal PLOS ONE by Ana Fernandes from the Berner Fachhochschule and the University of Fribourg and Martin Huber from the University of Fribourg, and Giannina Vaccaro
An analysis of sediment cores from the Bering Sea has revealed a recurring relationship between warmer climates and abrupt episodes of low-oxygen "dead zones" in the subarctic North Pacific Ocean over the past 1.2 million years.
Tested on human blood in the lab, the selective nanocapsules could reduce the side effects of a major blood clot dissolving drug, which include bleeding on the brain. If confirmed with animal tests, the nanocapsules could also make the drug more effective at lower doses.
Conservatives are less able to distinguish political truths from falsehoods than liberals, mainly because of a glut of right-leaning misinformation, a new national study conducted over six months shows.
Atomically thin van der Waals magnets are widely seen as the ultimate compact media for future magnetic data storage and fast data processing. Controlling the magnetic state of these materials in real-time, however, has proven difficult. But now, an international team of researchers led by Delft University of Technology (TU Delft) has managed to use light in order to change the anisotropy of a van
A new study by a team of University of Rochester psychologists and other researchers in the Collaborative Initiative on Fetal Alcohol Spectrum Disorders (CIFASD) finds that partners of mothers-to-be can directly influence a pregnant woman's likelihood of drinking alcohol and feeling depressed, which affects their babies' development.
Bad to Worse The new environmental crisis facing Sri Lanka just got even worse. After the container ship MV X-Press Pearl caught fire and burned for nearly two weeks, toxic chemicals and billions of plastic pellets leaked out, washing ashore and contaminating the Sri Lankan coastline . And now the ship is sinking, Agence France-Presse reports — bringing the nearly 330 tons of oil still in its tan
An early feasibility study shows flickering lights and sound could be a new weapon against Alzheimer's disease. For the past few years, Annabelle Singer and her collaborators have been using flickering lights and sound to treat mouse models of Alzheimer's disease, and they've seen some dramatic results. Now they have results from the first human feasibility study of the flicker treatment, and the
Researchers at Concordia's Pediatric Public Health Psychology Lab (PPHP) found that the sleep quality of the surprisingly high number of children who share a bed with their pets is indistinguishable from those who sleep alone.
GSA's dynamic online journal, Geosphere, posts articles online regularly. Locations and topics studied this month include the Moine thrust zone in northwestern Scotland; the Eastern California shear zone; implementation of 'OpenTopography'; the finite evolution of 'mole tracks'; the southern central Andes; the work of International Ocean Discovery Program (IODP) Expedition 351; and the Fairweather
The quantum Hall effect traditionally only plays a role in two-dimensional electron systems. Recently, however, a three-dimensional version of the quantum Hall effect was described in the Dirac semimetal ZrTe5.
Physical activity is the optimal first treatment choice for adults with mild to moderately elevated blood pressure and blood cholesterol who otherwise have low heart disease risk. About 21% of adults in the US with mild to moderately raised blood pressure and 28-37% of those with mild to moderate elevated cholesterol levels may be best served by a prescription for lifestyle-only treatment, which i
Twice a day, at dusk and just before dawn, a faint layer of sodium and other metals begins sinking down through the atmosphere, about 90 miles high above the city of Boulder, Colorado. The movement was captured by one of the world's most sensitive 'lidar' instruments and the regularly appearing layers promise to help researchers understand better how earth's atmosphere interacts with space, even p
Scientists have developed a gene drive with a built-in genetic barrier that is designed to keep the drive under control. The researchers engineered synthetic fly species that, upon release in sufficient numbers, act as gene drives that can spread locally and be reversed if desired.
Nature, Published online: 02 June 2021; doi:10.1038/d41586-021-01496-9 New naming scheme aims to cut confusion and avoid geographical stigmas. Plus, space junk hits the ISS and citizen scientists study swarming cicadas.
But how many directors get lost in the technicalities of technology? The challenge for a chief information security officer (CISO) is talking to the board of directors in a way they can understand and support the company. It's drilled into the heads of board directors and the C-suite by scary data-breach headlines, lawyers, lawsuits, and risk managers: cybersecurity is high-risk. It's got to be o
Prover som samlats in från 60 storstäder världen över visar att varje stad har sin egen mikrobiella profil. En specifik uppsättning av virus, arkeer, bakterier och andra osynliga organismer. Om du ger mig din sko kan jag säga vilken stad i världen du kommer ifrån, säger forskare bakom projektet. Ett internationellt konsortium av forskare har genomfört den största studien någonsin av de mikrober s
A new study by University of Alberta researchers sheds light on why many COVID-19 patients, even those not in hospital, are suffering from hypoxia–a potentially dangerous condition in which there is decreased oxygenation in the body's tissues. The study also shows why the anti-inflammatory drug dexamethasone has been an effective treatment.
Hype Cycle A crackdown by Tesla's legal team in China has led to a wave of public apologies by Chinese Tesla owners who previously alleged their vehicles experienced "brake failures," Teslarati reports . Tesla has struggled recently to keep up its reputation in China, facing mounting criticism over its vehicles' reliability and safety. But if the recent apologies are anything to go by, worries ov
It's widely accepted that STEM education helps kids to evolve into more successful adults. That's because STEM helps kids with critical thinking, increases their scientific literacy, while also encouraging them to become the next generation of innovators. However, when it comes to educational toys marketed to help your kids gain interest in STEM, most don't keep children's interest for very long.
If a gynaecologist is embarrassed to use real terms, perhaps he or she should have chosen a different speciality, says Susan Wolfe. While Susan Boyd finds the obsession with the vagina tiresome Re your article ( Most Britons cannot name all parts of the vulva, survey reveals , 30 May), I put some of the blame for this on the medical community for using infantilising euphemisms for female genitali
Researchers from Sinai Health have published a study providing an ultra-detailed look at the organization of a living human cell, providing a new tool that can help scientists around the world better understand what happens during disease.
Over the weekend, this space held the third installment in the "Lessons of Rome" chronicles by my friend Eric Schnurer. This one went into the comparison between the Roman Senate, in the era of Cicero and the Catiline conspiracy, and the current one in Washington. If you haven't read it yet, please give it a try —among other reasons, for the speechwriter's view of classic Latin rhetoric. This thi
Researchers have discovered a link between chronotype and the amount of sleep shift workers can get with their irregular schedules. Getting enough sleep can be a real challenge for shift workers, affecting their overall health. But what role does being an early bird or night owl play in getting good rest? "Some people seem to be hardwired to sleep early, while others tend to sleep late. This pref
In the universe's earliest moments, particles existed in an unimaginably hot plasma, whose behavior was governed by deeply complex webs of interaction between individual particles. Today, researchers can recreate these exotic conditions through high-energy collisions between heavy ions, whose products can tell us much about how hot, strongly-interacting matter behaves. Yet without extensive, highl
The myriad processes occurring in biological cells may seem unbelievably complex at first glance. And yet, in principle, they are merely a logical succession of events, and could even be used to form digital circuits. Researchers have now developed a molecular switching circuit made of DNA, which can be used to mechanically alter gels, depending on the pH. DNA-based switching circuits could have a
Researchers from Sinai Health have published a study providing an ultra-detailed look at the organization of a living human cell, providing a new tool that can help scientists around the world better understand what happens during disease.The new study, published in the journal Nature, was conducted in the laboratory of Dr. Anne-Claude Gingras, a senior investigator at the Lunenfeld-Tanenbaum Rese
Wu Hsin is an allegedly ancient Chinese sage whose inspiring teachings were brought to light by an obscure character named Roy Melvyn. Wu Hsin's teachings have inspired millions of people across the globe — even if all evidence indicates that he never existed and was made up by Melvyn. The remarkable story of Wu Hsin and Roy Melvyn explores the conflict between the nature of faith and literal or
This would be incredible if so. Any sources to confirm recent developments? Perhaps over the last few years? Which imaging techniques is this true of? MRIs? CT Scans? Etc, etc. submitted by /u/spreadlove5683 [link] [comments]
When California Gov. Gavin Newsom announced a goal to phase out oil drilling statewide by 2045, he focused on its impact on climate change. But oil drilling is also a health problem, particularly in Los Angeles, where thousands of oil wells still dot the city.
Pour One Out A drone that was sent to investigate an erupting volcano met an unfortunate end. But thankfully, it caught its own demise on video. YouTuber Joey Helms flew a camera drone up to Iceland's Fagradalsfjall volcano to get a close-up look at the eruption. But the volcano, which has been erupting since March according to the BBC , had other plans, and engulfed the drone in a spew of lava,
For the Embera, Wounaan and Kuna Tule peoples of the Choco region in Colombia, the COVID-19 pandemic is just one of the many threats they face. Like many other Indigenous communities around the world, they witnessed little in the way of a response from their government. Effectively they were left on their own to make sense of this new disease spreading across the world.
Models for professional use were the most effective at retaining aerosol particles of a size equivalent to the novel coronavirus, followed by TNT masks sold in drugstores. The efficacy of fabric masks ranged from 15% to 70%. A tight fit and lack of seams enhanced protection.
The number of specialty behavioral health establishments, their workforce and their wages have increased steadily between 2011 and 2019, according to a new study by Indiana University and University of Michigan researchers.
Hybrid functional materials combine organic and inorganic components and have many advantageous properties. They are commonly utilized in emerging technologies, such as novel electronic devices and green energy solutions. Controlling the properties of these materials requires detailed knowledge of their atomic structure, in particular the configuration of molecular adsorbates in the hybrid organic
They studied the extent to which cirrus clouds caused by aircraft occurred during the global hard lockdown between March and May 2020, and compared the values with those during the same period in previous years. The study was led by Johannes Quaas, Professor of Theoretical Meteorology at Leipzig University, and has now been published in the renowned journal Environmental Research Letters.
2021 is now one of the 10 wettest years on record since 1872 in the Denver area, with almost 10.5 inches of rain having fallen since the start of the year, according to the National Weather Service. That's more than half what the city gets on average in an entire year (14.3 inches annually) and more rain than Denver received in all of 2020 (8.74 inches), making it the wettest year since 1983 (10.5
Zebrafish exposed to the leading cannabinoids found in cannabis in the earliest stages of development suffer a significant drop in neural activity later in life, according to a University of Alberta study that has implications for prenatal development in humans.
One-quarter of people who take the drug methotrexate for common immune system disorders — from rheumatoid arthritis to multiple sclerosis — mount a weaker immune response to a COVID-19 vaccine, a new study shows.
This is an excellent overview at Stat on the current problems with machine learning in healthcare. It's a very hot topic indeed, and has been for some time. There has especially been a flood of manuscripts during the pandemic, applying ML/AI techniques to all sorts of coronavirus-related issues. Some of these have been pretty far-fetched, but others are working in areas that everyone agrees that
By mid-century, the Northeast is expected to experience significant changes in climate, on land and in the region's waters. Leaders from across New England and the Canadian Maritime Provinces teamed up with experts to compile a report containing the most complete and up-to-date information on the Gulf of Maine, that is also filled with actionable solutions to increase resiliency in the coming deca
A team of researchers at the International Center for Relativistic Astrophysics has found evidence that suggests Sagittarius A* is not a massive black hole but is instead a mass of dark matter. In their paper published in the journal Monthly Notices of the Royal Astronomical Society: Letters, the group describes the evidence they found and how it has stood up to testing.
L'Ralph is one of the Lucy spacecraft's three primary science instruments. The L'Ralph instrument is a multicolor camera which will gather information on the surface composition of the Trojan asteroids, including organics. The L'Ralph camera sits atop the spacecraft's Instrument Pointing Platform (IPP) that's used to aim Lucy's instruments in a specific direction—seen here in the clean room at Loc
Scientists have long had difficulty establishing the group size that best allows animals to live long lives and raise many surviving offspring. But now a research team that includes Anthropology researchers from Stony Brook University has used 14 years of demographic data on multiple groups of wild geladas (an Old World monkey species) to determine that mid-size group living is best for fitness, e
What drives the feasibility of climate scenarios commonly reviewed by organizations like the Intergovernmental Panel on Climate Change (IPCC)? And can they actually be achieved in practice? A new systematic framework can help understand what to improve in the next generation of scenarios and explore how to make ambitious emission reductions possible by strengthening enabling conditions.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03488-1 Single-crystal monolayer hexagonal boron nitride is unexpectedly tough owing to its asymmetric lattice structure, which facilitates repeated crack deflection, crack branching and edge swapping, enhancing energy dissipation.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03550-y Analysis of temperate lakes finds a widespread decline in dissolved oxygen concentrations in surface and deep waters, which is associated with reduced solubility at warmer surface water temperatures and increased stratification at depth.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03614-z Liver-resident natural killer (NK) cells sustain the dormancy of disseminated breast cancer cells, and a decrease in NK cells and increase in activated hepatic stellate cells is associated with the formation of liver metastases.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03605-0 By inducing changes in surrounding tissue, mutant intestinal stem cells create an unfavourable niche environment that gives them a competitive advantage over non-mutant neighbours.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03558-4 Using experiments in organoids and in vivo in mice, the authors show that Apc-mutant cells act as supercompetitors to initiate the formation of adenomas.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03541-z Optical experiments on WSe2/MoSe2 heterobilayers reveal signatures of moiré trions, including interlayer emission with sharp lines and a complex charge-density dependence, features that differ markedly from those of conventional trions.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03518-y CO2 and ultraviolet light are used to initiate the p-type doping of spiro-OMeTAD:LiTFSI films, which show enhanced efficiencies when used as hole-transporting layers in solar cells and have shorter fabrication times compared with interlayers doped using conventional methods.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03525-z NOTUM from Apc-mutant cells acts as a key mediator during the early stages of mutation fixation and drives the formation of intestinal adenomas.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03504-4 Experimental measurements of vibrational sum-frequency generation spectra indicate that the dielectric response of water near an electrode may be strongly asymmetric, with different responses to positive and negative electrode charge.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03613-0 Analyses of AMPA receptor–auxiliary subunit complexes provide insights into the gating and modulation of the AMPA receptor by TARP-γ8 and CNIH2.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03592-2 A proximity-dependent biotinylation technique defines the location of more than 4,000 proteins in a human cell, and almost 36,000 proximal interactions between proteins, including those at the interface of the mitochondria and ER.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03481-8 Robust heralded entanglement between two solid-state quantum memories with temporal multiplexing is realized using photons at telecommunication wavelengths.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03505-3 Heralded entanglement is realized between two solid-state absorptive quantum memories 3.5 metres apart and with a bandwidth of 1 gigahertz, and with a fidelity of approximately 80%.
Nature, Published online: 02 June 2021; doi:10.1038/s41586-021-03609-w A custom adenine base editor can edit the variant of the β-globin gene that causes sickle cell disease into a non-pathogenic variant in human and mouse cells, and transplantation of the edited cells rescues sickle cell disease in mice.
Nature, Published online: 02 June 2021; doi:10.1038/d41586-021-01379-z Malignant stem cells in the gut secrete factors that promote the differentiation of neighbouring stem cells, thereby aiding the replacement of normal stem cells by those with cancer-promoting mutations.
Nature, Published online: 02 June 2021; doi:10.1038/d41586-021-01381-5 Natural killer cells can drive spreading cancer cells to enter a state of dormancy. That finding, together with the discovery of a pathway that hinders this antitumour function, could spur the development of new treatments.
Nature, Published online: 02 June 2021; doi:10.1038/d41586-021-01377-1 Twelve candidates for the most powerful astrophysical particle accelerators in the Milky Way have been detected. This advance will help to uncover the nature of these exotic objects.
Nature, Published online: 02 June 2021; doi:10.1038/d41586-021-01378-0 Organic semiconductors used in a promising class of solar cell are processed in a 'doping' step to improve the transport of charge carriers. A fast doping method has been developed that might enable mass production of these cells.
Nature, Published online: 02 June 2021; doi:10.1038/d41586-021-01380-6 AMPA receptors are a class of protein complexes crucial for neuronal communication. Two complementary studies converge on structures of AMPA receptors found in a brain region called the hippocampus.
Prenuptial agreements, or "prenups," can be difficult to talk about. A look at comments on Reddit offers one way to discuss the often taboo subject: Use metaphors. "Many people view prenups as being negative, and argue that they indicate a lack of faith in the marriage from the outset," says Lynsey Romo, an associate professor of communication at North Carolina State University and corresponding
Scientists from The University of Texas Health Science Center at San Antonio have discovered a mechanism by which SARS-CoV-2 exploits changes in metal ion concentrations to disguise itself in the body. Varying concentrations of metal ions—positively charged atoms such as magnesium, manganese and calcium—are observed in hospitalized COVID-19 patients.
Clinical trials published in high-profile medical journals rarely report on income or other key sociodemographic characteristics of study participants, according to a new study that suggests these gaps may create blind spots when it comes to health care, especially for disadvantaged populations.
Red2Onco, an innovative genetic mouse model, allows to detect the very initial steps that lead to cancer development. Red2Onco's multi-colour labelling system allows to trace intestinal tumour development after the first oncogenic hit at the single cell level. The research carried out at IMBA – Institute of Molecular Biotechnology of the Austrian Academy of Sciences – and the University of Cambrid
Metastases can develop in the body even years after apparently successful cancer treatment. They originate from cancer cells that migrated from the original tumor to other organs, and which can lie there inactive for a considerable time. Researchers have now discovered how these "sleeping cells" are kept dormant and how they wake up and form fatal metastases. They have reported their findings in t
The study, published in the journal Nature, shows how a drug available on the NHS can boost fitness of healthy stem cells in the gut, making them more resistant to sabotage from mutant stem cells that cause cancer.
The number of people fleeing violence, poverty and conflict is skyrocketing worldwide and refugees often become permanently displaced. Syria's decade-long civil war has caused millions of people to flee the country, with many settling in neighboring Lebanon.
An international team of astrophysicists led by the Stellar Astrophysics Group of the University of Alicante (UA), the Instituto de Astrofísica de Canarias (IAC), and the University of Valparaíso (Chile) has discovered a massive cluster of stars of intermediate age in the direction of the Scutum constellation. This object, which has been named Valparaíso 1, lies some seven thousand light years awa
What qualifies someone to become a judge? The answer is surprisingly vague and even taboo to discuss. Lawyer Jessica Kerr sifts through the murky, mysterious process that sits at the center of the Commonwealth judicial system in countries like Australia — and makes the case for "judge school," a legal education better fit to bring justice, legitimacy and public trust to any court.
A team of researchers from the Norwegian University of Science and Technology, the University of Bergen, the Institute of Marine Research and PatoGen AS—all in Norway—has found that the widespread use of chemicals to combat aquatic lice in fish farms has led to resistance in aquatic lice in other parts of the North Atlantic.
The first humans may have arrived in North America more than 30,000 years ago—nearly 20,000 years earlier than originally thought. Researchers made the discovery while studying the origins of agriculture in the Tehuacan Valley in Mexico. As part of that work, they wanted to establish a date for the earliest human occupation of the Coxcatlan Cave in the valley, so they obtained radiocarbon dates f
Impact on offences such as burglary and assault is revealed in 27 cities, but figures steadily rise as rules ease Coronavirus – latest updates See all our coronavirus coverage Urban crime ranging from vehicle theft and burglary to robbery and assault fell substantially during Covid lockdowns as stay-at-home orders around the world cleared the streets and ensured more houses were occupied in the d
Made from microalgae and bacteria, the new substance can survive for three days without feeding. It could one day be used to build living garments, self-powered kitchen appliances or even window coverings that sequester carbon.
All the cells of an organism share the same DNA sequence, but their functions, shapes or even lifespans vary greatly. This happens because each cell "reads" different chapters of the genome, thus producing alternative sets of proteins and embarking on different paths. Epigenetic regulation—DNA methylation is one of the most common mechanisms—is responsible for the activation or inactivation of a g
The white-tailed sea eagle is known for reacting sensitively to human disturbances. Forestry and agricultural activities are therefore restricted in the immediate vicinity of the nests. However, these seasonal protection periods are too short in the German federal States of Brandenburg (until August 31) and Mecklenburg-Western Pomerania (until July 31), as a new scientific analysis by a team of sc
A new study by the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB) allows validating organic markers to quantify past primary productivity in the oceans, a key factor in the global marine carbon cycle. The research, carried out from the study of alkenones as a biomarker, puts an end to decades of scientific debate about the validity of these bi
Researchers from Bochum and Osnabrück have gained new insights into the structure of the Ras protein, which acts as a molecular switch for cell growth and is involved in the development of cancer. With the help of fluorescence markings, they have demonstrated that the protein is deposited in a pair at the cell membrane, and with the very structure that they predicted in theory back in 2012. The te
A team of researchers led by the University of Cambridge and University of Utrecht examined trends in daily crime counts before and after COVID-19 restrictions were implemented in major metropolitan areas such as Barcelona, Chicago, Sao Paulo, Tel Aviv, Brisbane and London.
Oxygen levels in the world's temperate freshwater lakes are declining rapidly—faster than in the oceans—a trend driven largely by climate change that threatens freshwater biodiversity and drinking water quality.
During the '90s, engineers made major advances in the telecom arena spreading out the network to distances beyond the cities and metropolitan areas. To achieve this scalability factor, they used repeaters, which enhanced attenuated signals and allowed these to travel farther distances with the same features such as intensity or fidelity. Now, with the addition of satellites, it is completely norma
The Ingenuity Mars Helicopter was out on a photo-taking mission when it started to act strangely. It kept changing its speed and tipping back and forth. A single error threw its entire navigation system into confusion. Something went wrong on the Ingenuity Mars Helicopter's sixth flight. Not to worry, though: the copter is fine. The story of what went wrong and why it's okay now reminds us once a
In 'Our Earth Matters: Pathways to a Better Common Environmental Future,' spanning two special issues of Environmental Policy and Law (EPL), leading scholars from more than five continents call for an honest introspection of what has been attained over the last 50 years relating to regulatory processes and laws and explore future trajectories with new ideas and frameworks for environmental governa
RUDN University chemists proposed a new way to synthesize catalysts for the conversion of ethyl alcohol. The obtained materials are promising catalysts for the selective conversion of ethanol, which is an important stage in the development of an alternative technology for obtaining valuable chemical synthesis products based on plant raw materials.
Scientists from The National Physical Laboratory (NPL) and the National Biofilms Innovation Centre (NBIC) provide a comprehensive review of the current state of knowledge, research direction and practices in the area of antiviral materials and coatings. The study is presented in the consortium's review article "Antiviral surfaces and surface coatings and their mechanisms of action," published in C
Polypharmacology—the ability of a drug to affect more than one protein—should be studied early in the drug discovery pathway, and constantly monitored as the chemical structure is optimized in the design of the clinical candidate, leading researchers believe.
From a talking donkey to a man being eaten by a giant fish, the Bible has no shortage of strange stories. Here's a look at some of the most interesting biblical tales, some of which have ties to archaeology.
Most of the incredible diversity of life on Earth is yet to be discovered and documented. In some groups of organisms—terrestrial arthropods such as spiders and scorpions, marine invertebrates such as sponges and molluscs, and others—scientists have described fewer than 20% of species.
For some 30 years, scientists have used superconducting materials to record the tiniest specks of light imaginable—individual photons, or single particles of light. However, these detectors, which consist of ultracold wires only about one-thousandth the diameter of a human hair, were limited to recording single photons at visible-light and slightly longer wavelengths, in the near infrared (IR).
Fluorinated compounds are an important group of compounds that are widely used in pharmaceuticals, agricultural chemicals, functional resins, and organic electronic materials. In particular, perfluorinated compounds with multiple carbon-fluorine bonds are attracting attention because of their high thermal and chemical stability and various excellent properties such as water and oil repellency and
Meet Hera, our very own asteroid detective. Together with two briefcase-sized Cubesats—Milani the rock decoder and Juventas the radar visionary—Hera is off on an adventure to explore Didymos and Dimorphos, an asteroid pair typical of the thousands that pose an impact risk to planet Earth.
The Permian Basin, located in western Texas and southeastern New Mexico, is the largest oil- and gas-producing region in the U.S. The oilfield operations emit methane, but quantifying the greenhouse gas is difficult because of the large area and the fact that many sources are intermittent emitters. Now, researchers reporting in ACS' Environmental Science & Technology Letters have conducted an exte
The Growth Lab at Harvard University is announcing the launch of Metroverse, an Urban Economy Navigator designed to provide policymakers, entrepreneurs, investors, business organizations, civil society, and the general public with unprecedented economic data for more than 1,000 cities in 79 countries. The platform vividly illustrates the technological capabilities that underpin a city's economy an
Maria Sharmina and colleagues at the Tyndall Centre and MMU have published a paper in Nature Food on how companies in the seafood sector can make their business models both more resilient and compliant with circular economy principles.
A team of researchers from the University of Aveiro and the University of Porto, both in Portugal, and the University of Birmingham in the U.K. has found that for humans, the brain and testis have the highest number of common proteins. In their paper published in the journal Royal Society Open Biology, the group describes their study of protein similarities between tissues.
What makes cheetah the fastest land mammal? Why aren't other animals, such as horses, as fast? While we haven't yet figured out why, we have some idea about how—cheetahs, as it turns out, make use of a galloping gait at their fastest speeds, involving two different types of 'flight': one with the forelimbs and hind limbs beneath their body following a forelimb liftoff, called gathered flight, whil
As early as the Neolithic period (circa 3900 BC), the domestication of animals likely led to the development of diseases including measles and smallpox. Since then, zoonotic disease has led to other major transnational outbreaks including HIV, Ebola, SARS, MERS, and H1N1 swine flu, among others. Currently, more than half of all existing human pathogens, and almost three-quarters of emerging infect
Good acoustics in the workspace improve work efficiency and productivity, which is one of the reasons why acoustic materials matter. The acoustic insulation market is already expected to hit 15 billion USD by 2022 as construction firms and industry pay more attention to sound environments. Researchers at Aalto University, in collaboration with Finnish acoustics company Lumir, have now studied how
According to documents obtained by The Wall Street Journal , Tesla failed on several occasions to preapprove CEO Elon Musk's tweets, as it was required to do by a court order. It's the latest chapter in the long saga of Musk's disagreement and frustration with federal regulators, governing bodies Musk has shown very little respect for over the last couple of years. In 2018, Musk was sued by the S
Autistic people's ability to accurately identify facial expressions is affected by the speed at which the expression is produced and its intensity, according to new research at the University of Birmingham.
A team has discovered the method ducks use to suspend water in their feathers while diving, allowing them to shake it out when surfacing. The discovery opens the door for applications in marine technology.
Manhattan's street grid is famously regular and predictable. What if you extended it across the globe? This web tool does exactly that, and in the process, turning New York into the world's first, last, and only "planetary city." But grids are square, and the world is not. Somewhere in Uzbekistan, global Manhattan goes haywire. Sixth Avenue in midtown Manhattan. Add a few zeroes to the address, a
Researchers at Linköping University in Sweden have developed an app to help women achieve a healthy weight gain and lifestyle during a pregnancy. The results from an evaluation of the app have now been published in two scientific articles. Using the app contributed to a better diet. Pregnant women with overweight or obesity who received the app also gained less weight during pregnancy.
Eating at least two serves of fruit daily has been linked with 36% lower odds of developing type 2 diabetes, a new Edith Cowan University study has found. The study, published today in the Journal of Clinical Endocrinology and Metabolism, revealed that people who ate at least two serves of fruit per day had higher measures of insulin sensitivity than those who ate less than half a serve.
– New research published in the Journal of Thoracic Oncology (JTO) suggests the method used to calculate how obesity is measured may affect whether it is considered a risk factor for lung cancer. The JTO is an official journal of the International Association for the Study of Lung Cancer.
Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox. Millennials are, as my co-worker Robinson Meyer poetically put it, "passing through the U.S. economy like an elephant being digested by a boa constrictor ." Perhaps nowhere is that stretch more ap
How does consciousness work? A frenemy collaboration is duking it out. Six different teams from across the globe are uniting in a challenge to test our fundamental theories of consciousness. They don't agree on where or how consciousness originates in the brain. But they're willing to battle it out through a fair match. For the past two years—and the next few—the teams agreed to standardize tests
In order to offer a personalised treatment that best suits the case being treated, scientists led by UNIGE had already developed a spheroidal reproduction of tumours that integrates the tumour cells, but also their microenvironment. Today, the Geneva team has succeeded in integrating two types of immune cells that come directly from the patient into the spheroidal structure, making it possible to
Professor Tetsuo Endoh's Group at Tohoku University's Center for Innovative Integrated Electronics has announced a new magnetic tunnel junction (MTJ) quad-technology that provides better endurance and reliable data retention — over 10 years — beyond the 1X nm generation.
Scientists have experimentally measured the bite force of adult T. rexes but not of younger tyrannosaurs. Fossils with juvenile bite marks have now allowed experts to experimentally test how hard juveniles could chomp. Though their bite force is one-sixth that of an adult, it is still stronger than that of living hyenas. The measurement is higher than previous estimates, suggesting a different eco
Despite the best efforts of scientists eager to study Earth's sister world, U.S. efforts to send a dedicated spacecraft to Venus have languished. An imminent announcement could decide whether… — Read more on ScientificAmerican.com
A new study published in the American Journal of Lifestyle Medicine finds critical links between job loss and physical inactivity in young adults during the U.S. Great Recession of 2008-09 that can be crucial to understanding the role of adverse economic shocks on physical activity during the COVID-19 pandemic.
Fine-grained location data gleaned from mobile phones shows that people living in less affluent neighborhoods spent less time at home during the early lockdown and first several months of the coronavirus pandemic.
Orthopedic patients are typically given oral magnesium (Mg) supplements to aid bone regeneration. In this study, researchers tried replacing that supplement with an injection — directly into the impacted bone — of custom-made, polymer microspheres that control the release of magnesium ions. They found that the injections accelerated bone formation in vivo.
Researchers from the University of Tsukuba showed that cardiac scar tissue (fibroblasts) can be directly reprogrammed to heart muscle cells (cardiomyocytes) in mice. By treating mice post-heart attack with a virus carrying cardiac transcription factors, they found that new cardiomyocytes were formed by fibroblasts converting into cardiomyocytes as opposed to fibroblasts fusing with existing cardio
Det vil være et fåtal af personer med nedsat immunforsvar, der ikke vil have effekt af en COVID-19-vaccine, meddeler Sundhedsstyrelsen, der anbefaler, at alle lader sig vaccinere mod COVID-19. Udmeldingen kommer i kølvandet på debat om forskning fra OUH.
Ny svensk forskning viser, at en udfasning af benzin- og dieselbiler i Sverige fra 2030 først vil få en større effekt for CO2-emissionen omkring 2045. Hvis udfasningen sker for hurtigt kan noget af CO2-besparelsen gå tabt.
The findings dash hopes that antimicrobials would benefit patients with life-threatening idiopathic pulmonary fibrosis. The trial, however, will still benefit the battle against the deadly lung disease, the researchers say.
De Konservatives beslutningsforslag om at bekæmpe udbredelsen af stråmandsklinikker i almen praksis overlevede ikke andenbehandlingen i Folketinget tirsdag. Trods nederlaget glæder PLO sig over den øgede politiske bevågenhed om fænomenet. Dansk Erhverv raser over PLO's ageren i sagen.
Researchers at ETH Zurich and the University of Basel have developed a vaccine that protects animals from Salmonella. These bacteria often escape the effects of vaccination by genetically modifying their protective coat. The researchers have succeeded in manipulating this process to lure the bacteria into an evolutionary trap.
The news: The European Union's digital vaccine passport system went live in seven countries yesterday, ahead of a full launch for all 27 member states on July 1. The document, called a digital green certificate, shows whether someone has been fully vaccinated against covid-19, recovered from the virus, or tested negative within the last 72 hours. Travelers who can prove they fit one of these thre
Nya forskningsresultat kan leda till förbättrad vård för patienter med godartade tumörer i binjurarna. Forskare på Skånes universitetssjukhus och vid Lunds universitet har identifierat vilka nivåer av kortisol som tumörerna producerar som kan leda till ökad dödlighet.
It has now been more than a year since SpaceX launched its first crewed Falcon 9 mission to the ISS, but the Falcon 9 isn't Elon Musk's vision of the future. That honor goes to the Starship, which SpaceX has been very publicly testing (and blowing up). The company is still riding high on the successful landing of the SN15 prototype, which landed in one piece last month . Now, Musk has let it slip
When employees lack power at work, they can feel vulnerable and paranoid. In turn, that paranoia can cause people to lash out against colleagues or family members and even seek to undermine their organization's success, according to new research from the University at Buffalo School of Management.
Miljövänliga kläder växer inte på träd, men nästan. Viskos är ett textilmaterial som tillverkas av cellulosa från träd, men hur och var viskosen tillverkas avgör hur stor klimatpåverkan det blir. Bomull har länge dominerat textilbranschen i världen och står för drygt 25 procent av all textiltillverkning. Sedan några år har bomullsodlingen nått sitt tak och man talar om " peak cotton ", den gräns
Undernäring är ett stort problem bland de allra äldsta och något som kan leda till döden. Övervikt kan däremot ge ett visst skydd. Till och med svår fetma tycks vara gynnsamt bland äldre, visar forskning. – Resultaten understryker vikten av att göra riskbedömningar bland de äldre för att förhindra undernäring och viktnedgång eftersom de kan medföra en stor risk för att avlida, säger Maria Burman,
A healthy diet around the time of conception through the second trimester may reduce the risk of several common pregnancy complications, suggests a study by researchers at the National Institutes of Health. Expectant women in the study who scored high on any of three measures of healthy eating had lower risks for gestational diabetes, pregnancy-related blood pressure disorders and preterm birth.
The field of ecology needs to account for the historical legacy of colonialism that has shaped people and the natural world, researchers argue. They make this claim about ecology, the field of biology devoted to the study of organisms and their natural environments, in a new perspective in the journal Nature Ecology & Evolution . To make ecology more inclusive of the world's diverse people and cu
Materials have a variety of properties that can be used to solve computational problems, according to studies in substrate-based computing.BZ computers, slime mold computers, plant computers, and collision-based liquid marbles computers are just a few examples of prototypes produced for future and emergent computing devices. Modeling the computational processes that exist in such systems, however,
Co-dependent and clingy or casual and aloof—a new study has examined the behavior of pet cats to understand what it means about their relationship with their owner, and the research suggests it's a two-way street!
Känner du skam när du lägger en halloumi på grillen? Liksom flygskam och klädskam är också "halloumiskam" ett ursvenskt begrepp, där ansvaret att välja rätt, läggs på den enskilda individen. Sommaren 2019 blåste det hårt kring den cypriska osten halloumi. Att grilla halloumi istället för en bit kött är populärt i Sverige då det kan uppfattas som ett bättre val. Vårt land är till och med ett av de
Slow and fast light, or large changes in the group velocity of light, have been observed in a range of optical media, but the fine control over the refractive index necessary to induce an observable effect has not been achieved in a plasma.
The number of girls who marry before their 15th birthday has remained unchanged for 20 years in most countries in sub-Saharan Africa. The region has the highest rate of child marriage, with nearly four in 10 girls married before age 18. In Niger, for example, over 77% of girls are married before the age of 18.
According to the Paris Agreement, the world needs to limit global warming to well below 2°C and to strive toward a 1.5°C increase above pre-industrial levels. How can we meet this goal at the lowest cost? In a May 2021 study, we try to answer this question. Our research found that we can meet the goals at a lower cost if we change how we value different greenhouse gases.
The search for life beyond Earth typically focuses on first looking for water, the basis for life as we know it. Whether the water is a gas, liquid, or solid, its presence and composition can tell researchers a lot about the planet, moon, comet, or asteroid on which it is detected and whether it could support life.
If you take a bucket of water balloons and jostle one of them, the neighboring balloons will respond as well. This is a scaled-up example of how collections of cells and other deformable particle packings respond to forces. Modeling this phenomenon with computer simulations can shed light on questions about how cancer cells invade healthy tissue or how leaves and flowers grow. But the behavior of
Tree species in Africa's upland mountain rainforests can adapt both photosynthesis and leaf metabolism to warming. But the ability to do so varies from species to species, according to studies from a new doctoral dissertation.
If you have witnessed the rainbow pattern that dances on the surface of a CD or DVD, then you have seen diffraction at work. The disk acts as a diffraction grating, an optical element that disperses light into various colors or wavelengths.
The climate of ancient Earth left telltale signs in the geochemical record. On the basis of chemical properties of carbonate minerals, scientists can calculate a site's temperature hundreds of millions of years ago. Such a "paleothermometer" provides a peek not just into past climates but also into geological processes like elevation changes of Earth's surface. Analyses by different research group
As 2021 has unfolded, it's been easier to play with improbable swords from video games than play the games themselves. The PS5, Xbox Series X, and Nintendo Switch have all been in high demand, with stocks selling out instantly. Fortunately, in our giveaway , you can get all three and more, while contributing to the music charity Playing For Change. Our giveaway not only includes the PS5, Series X
If you're confused about opinion journalism and what it is, you're not alone. Many Americans are. But even so, the editorials, opinion columns and letters to the editor that fill the op-ed pages could help bridge political divides in the U.S. and offer some help to struggling local news outlets.
An international team of astronomers has performed radio and X-ray observations of radio relics in a merging galaxy cluster known as PSZ2 G096.88+24.18. Results of this monitoring campaign could shed more light on the nature of this galaxy cluster. The study was published May 18 on arXiv.org.
Nature Communications, Published online: 08 June 2021; doi:10.1038/s41467-021-23789-3 SERS assays have potential for multiplexed detection of biomarkers but differentiation of SERS tags remains a challenge. Here, the authors report the creation of 14 distinct geometrically controlled metal carbonyl tags and demonstrate multiplexed detection of nasopharyngeal carcinoma biomarkers from patient bloo
Gammel it i det offentlige spænder ben for GDPR-compliance, og derfor må man forsøge at lappe og opdatere så godt man kan, fortæller Statens It. Hvis ikke, det rækker, må man lave politikker hos den dataansvarlige myndighed.
Move over, Reviewer 2: The legal reviewer wants your job. Last month, I was relieved when the journal Research Ethics published my article, "The Use of Confidentiality and Anonymity Protections as a Cover for Fraudulent Fieldwork Data." One unexpected hurdle had almost thwarted publication. The problem wasn't with the proverbial hard-to-please peer reviewer called Reviewer … Continue reading
The names of many of the new companies and technologies created to combat the effects of climate change on marine ecosystems can evoke thrilling acts of derring-do on the high seas. WaveKiller uses compressed air systems to create "walls" of bubbles up to 50 feet thick, to guard against erosion and contain waste and oil spills. The Inceptor is a solar-powered barge deployed by the Dutch nongovern
Nature, Published online: 02 June 2021; doi:10.1038/d41586-021-01006-x A successful entrepreneur needs to quickly develop a strategy to scale up their company, transfer skills to colleagues and shape a team.
Nature Communications, Published online: 02 June 2021; doi:10.1038/s41467-021-23574-2 Here, the authors introduce beyond-nearest-neighbour interactions as a mechanism for molding the flow of waves in acoustic metamaterials. They find that for strong third-nearest-neighbour interactions, this mechanism allows for engineering roton-like acoustical dispersion relations under ambient conditions.
Nature Communications, Published online: 02 June 2021; doi:10.1038/s41467-021-23586-y The mechanism of the interfacial Dzyaloshinskii-Moriya interaction in heavy metal-ferromagnet heterostructures is debated. Here, the authors show the oscillating behaviour of the interaction as a function of the MgO spacer layer thickness, supporting the interlayer exchange coupling mechanism of the Ruderman-Kit
Nature Communications, Published online: 02 June 2021; doi:10.1038/s41467-021-23478-1 Mechanisms underlying the cardiotoxicity associated with thoracic irradiation and doxorubicin treatment during anticancer therapy remain poorly understood. Here the authors show that treatment with an antibody against the L1 cell adhesion molecule inhibits nuclear L1CAM translocation, thereby controlling vascula
Nature Communications, Published online: 02 June 2021; doi:10.1038/s41467-021-23143-7 Mammalian genomes are scattered with repetitive sequences, but their biology remains largely elusive. Here, the authors show that transcription can initiate from short tandem repetitive sequences, and that genetic variants linked to human diseases are preferentially found at repeats with high transcription initi
Nature Communications, Published online: 02 June 2021; doi:10.1038/s41467-021-23591-1 Vibrational energy transfer (VET) is essential for protein function as it is responsible for efficient energy dissipation in reaction sites and is linked to pathways of allosteric communication. Here authors equipped a tryptophan zipper with a VET injector and a VET sensor for femtosecond pump probe experiments
Nature Communications, Published online: 02 June 2021; doi:10.1038/s41467-021-23492-3 Acute ischemic stroke impacts men and women differently. Here, the authors show how different lesion patterns in men and women are linked to the extent of stroke severity.
Nature Communications, Published online: 02 June 2021; doi:10.1038/s41467-021-23429-w Single-atom catalyst (SAC) has emerged as a frontier in heterogeneous catalysis yet its robustness remains a critical concern. Here, a highly active, selective and robust Ru1-N3 SAC is explored for a challenging reaction, reductive amination of aldehydes/ketones for synthesis of primary amines.
Nature Communications, Published online: 02 June 2021; doi:10.1038/s41467-021-23488-z Finding dipole orientation of nanostructures is a challenge. Here the authors report a method to determine the sign of the polarity of a single nanowire using electric-field-modulated second-harmonic generation from surface-guided ZnO nanowire.
Physical activity is the optimal first treatment choice for adults with mild to moderately elevated blood pressure and blood cholesterol who otherwise have low heart disease risk. About 21% of adults in the US with mild to moderately raised blood pressure and 28-37% of those with mild to moderate elevated cholesterol levels may be best served by a prescription for lifestyle-only treatment, which i
Dominic Cummings repeatedly used this dubious term – but it obscures the real reasons why bad decisions were made • Stephen Reicher and John Drury are participants in the Sage subcommittee advising on behavioural science In the seven hours of evidence he gave at the Houses of Commons, Dominic Cummings mounted a systematic attack on the decisions of the government and its scientific advisory group
År 1946 sjösattes en reform som innebar att skolor kunde få statsbidrag för att servera gratis skolmat. Villkoret var att maten skulle erbjudas till samtliga elever, inte bara de fattiga, och uppfylla hårda krav på matens näringsrikedom.
PLUS. Dykkere og korrosionsbeskyttelses-firmaer melder om tærings-problemer under overfladen på ellers eksklusive boligbyggerier i havne. Problemet er ofte, at man glemmer beskyttelse – eller det er uklart, hvem der har ansvaret.
Before they were pushed to the edge of extinction, 30 to 60 million bison lived in North America, primarily on the Great Plains. Today, declining biodiversity and fragmentation make that ecosystems among the most endangered in the world. But a movement led by Indigenous nations is bringing the bison back.
US President Joe Biden's administration announced Tuesday it was halting petroleum development activity in Alaska's Arctic National Wildlife Refuge, reversing a move by former president Donald Trump to allow drilling.
New research from the Georgia Institute of Technology finds that elephants dilate their nostrils in order to create more space in their trunks, allowing them to store up to nine liters of water. They can also suck up three liters per second—a speed 50 times faster than a human sneeze (150 meters per second/330 mph).
Table corals have been dubbed as "extraordinary ecosystem engineers"—with new research showing these unique corals can regenerate coral reef habitats on the Great Barrier Reef faster than any other coral type.
Hey does anyone know any Institution where in research work or Project is going on in PHD level research in Quantum Neural Networks or Quantum Machine learning ? submitted by /u/pratj [link] [comments]
Talgoxar är vanliga i hela Europa och det är sedan tidigare känt att fåglar från olika europeiska populationer är genetiskt ganska lika varandra. Nu kommer dock oväntade forskningsresultat. I en ny studie har forskare identifierat tydliga genetiska skillnader mellan talgoxar som lever i städer jämfört med talgoxar som lever i lantlig miljö. Studien är publicerad i tidskriften Nature Communications
They walked in on their own: The first wolves in more than 100 years known to call Washington state home, after this native species was nearly wiped out by hunting, trapping and government extermination campaigns.
Advocates for people living in rural communities this week organized a statewide effort to get agriculture commissioners in Fresno and surrounding counties to begin notifying residents before pesticides are sprayed nearby.
This month's open thread for climate science. Start of the meteorological summer, official hurricane season ( outlook ), the final stretches of the IPCC AR6 review process and a rare conjunction of Father's Day and the summer solstice. Please stay on topic. The post first appeared on RealClimate .
More than 6,000 buildings in Maceió condemned and research suggests more subsidence to come It was early 2018 when residents of the Brazilian city of Maceió first spotted cracks appearing in buildings and roads. Heavy rainfall in mid February, followed by a small earthquake at the beginning of March, appeared to trigger the fractures. The situation in the neighbourhood of Pinheiro was so serious
"There is a lack of research on how drones are perceived and understood by humans, which is vastly different than ground robots." says Prof. Jessica Cauchard together with Viviane Herdel of Ben-Gurion University of the Negev Magic Lab, in the Department of Industrial Engineering & Management. "For the first time, we showed that people can recognize different emotions and discriminate between diffe
Women who experience acute aortic dissection–a spontaneous and catastrophic tear in one of the body's main arteries–not only are older and have more advanced disease than men when they seek medical care, but they also are more likely to die.
Steno Diabetes Center Odense og Odense Universitetshospital har igangsat et initiativ, hvor patienter med diabetes og andre komorbiditeter bliver taget op på lægefaglige teamkonferencer for at koordinere behandlingen på tværs af specialer.
Every week, our lead climate reporter brings you the big ideas, expert analysis, and vital guidance that will help you flourish on a changing planet. Sign up to get T he Weekly Planet , our guide to living through climate change, in your inbox . Here's a question that has recently become surprisingly important in the battle against climate change: What is a company? There's a legal answer, of cou
The labor shortage isn't proof that a universal basic income would incentivize slothfulness. This video ( The Labor Shortage Best Explained by an Ex-Barista ) provides context for why the number of new business applications and digital storefronts doubled over the past year. Many low-wage workers aren't returning to their part-time jobs because the stimulus money gave them the time to learn a new
Dark 'eyeliner' feathers of peregrine falcons act as sun shields to improve the birds' hunting ability, a new scientific study suggests. Scientists have long speculated that falcons' eye markings improve their ability to target fast-moving prey, like pigeons and doves, in bright sunlight. Now research suggests these markings have evolved according to the climate; the sunnier the bird's habitat, th
The size and shape of the universe has yet to be resolved. The size of the universe is linked to understanding its shape and the limits of our observations. New studies and going deeper into space will help us answer the question: "" Does the universe keep extending endlessly into the abyss of space, or does it have a defined end? Of all the scientific questions you may ponder, "Is the universe i
The trunk of an African elephant is an evolutionary marvel. Clocking in at weights well over 200 pounds, it ripples with thousands of individual muscles that help the superlong schnoz lift barbells , uproot trees , and fling bothersome lions into the air . A tortilla chip is an embarrassment of engineering. It weighs a fraction of an ounce and can measure less than a millimeter thick; it is so wo
BioNyt Videnskabens Verden (www.bionyt.dk) er Danmarks ældste populærvidenskabelige tidsskrift for naturvidenskab. Det er det eneste blad af sin art i Danmark, som er helliget international forskning inden for livsvidenskaberne.
Bladet bringer aktuelle, spændende forskningsnyheder inden for biologi, medicin og andre naturvidenskabelige områder som f.eks. klimaændringer, nanoteknologi, partikelfysik, astronomi, seksualitet, biologiske våben, ecstasy, evolutionsbiologi, kloning, fedme, søvnforskning, muligheden for liv på mars, influenzaepidemier, livets opståen osv.
Artiklerne roses for at gøre vanskeligt stof forståeligt, uden at den videnskabelige holdbarhed tabes.