New research published in the American Journal of Emergency Medicine found that in the State of Florida, and also at the local level in Miami-Dade County, higher stringency efforts during the first two months of the pandemic kept overall transmission numbers low.
On my kitchen wall hangs a very small and very adorable cat calendar, with May 23 circled in Sharpie. It’s the day my Pfizer vaccine will, at long last, blossom into “ full vaccination ,” as sanctioned by the CDC . I’ll be able to safely venture outdoors unmasked and skip post-exposure quarantines. I’ll be able to schmooze with other immunized people indoors—perhaps even travel across state lines
'Superhighways' used by a population of up to 6.5 million Indigenous Australians to navigate the continent tens of thousands of years ago have been revealed by new research using sophisticated modelling of past people and landscapes.
Wasps deserve to be just as highly valued as other insects, like bees, due to their roles as predators, pollinators, and more, according to a new review paper led by UCL and University of East Anglia researchers.
Scientists from Stony Brook University and the Max Planck Institute of Animal Behavior have pieced together a timeline of how brain and body size evolved in mammals over the last 150 million years. The findings, published in Science Advances, show that brain size relative to body size—long considered an indicator of animal intelligence—has not followed a stable scale over evolutionary time.
What if some of the antimatter that was thought to have disappeared was hiding in the form of anti-stars? Researchers from the Institute for Research in Astrophysics and Planetology (IRAP—CNRS/CNES/UT3 Paul Sabatier) are using the Fermi gamma-ray space telescope to put the most constraining limits ever on this hypothesis. The results of their work were published on April 20, 2021 in Physical Revie
Hi, Futurology! I'm Trey Goff, Chief of Staff at Honduras Próspera Inc. We have worked with the Honduran government to create what is, in my humble opinion, the world's most advanced special economic zone. My identity has been verified by the moderators. In short, Honduras Próspera's sole focus is catalyzing prosperity and improving lives for profit. We recognize that governance, as an industry (
They say that in art, constraints lead to creativity. The same seems to be true of the universe. By placing limits on nature, the laws of physics squeeze out reality’s most fantastical creations. Limit light’s speed, and suddenly space can shrink, time can slow. Limit the ability to divide energy into infinitely small units, and the full weirdness of quantum mechanics blossoms. “Declaring somethi
A draft cease-and-desist letter sent to BlueTriton — known until this month as Nestlé Waters North America — is the latest development in a yearslong battle over water resources in the San Bernardino area.
Havana Syndrome Starting in late 2016, US and Canadian embassy staff stationed in Havana, Cuba, started experiencing mysterious health problems, ranging from hearing loss to memory problems and nausea. The symptoms later became known as “Havana syndrome.” Later investigations concluded that the incidents may have involved the deployment of a microwave weapon, deployed by an unknown adversary to t
After facing significant backlash for deploying a robot dog, the New York Police Department has decided to cut the experiment short sooner than expected, The New York Times reports . The robot dog, dubbed Digidog, was a futuristic, four-legged machine built by Boston Dynamics, meant to be deployed in dangerous situations to protect officers. But after the robot made several public appearances, th
Astronaut and pilot of the command module Columbia during 1969’s Apollo 11 mission On 20 July 1969, Michael Collins, who has died aged 90, became the most solitary human in the universe – even if he derided that categorisation as “phony philosophy”. He orbited the moon alone, inside Apollo 11’s command module Columbia, and out of touch with ground control for 48 minutes on each orbit. Meanwhile,
Researchers in Germany reviewed more than 27,000 images to identify the world’s “most Instagrammable bird.” An odd-looking nocturnal species native to Australia and Southeast Asia stood out, they said.
With 200 million doses administered, America’s vaccine-distribution program has been remarkably successful, but now it is hitting a wall. The rate of COVID-19 vaccinations is dropping ; the percentage of people not returning for their second shot has risen. Fortunately, the number of Americans who are resolutely anti-vaccine remains small, a stubborn 13 percent , so finding ways to win over the r
Updated on April 29, 2021 at 11:13 a.m. ET The good news for Democrats who watched Joe Biden unveil a historically ambitious agenda last night is that newly elected presidents have almost always passed some version of their core economic plan—particularly when their party controls both congressional chambers, as Biden’s does now. The bad news: Voters have almost always punished the president’s pa
Aiming High SpaceX is looking to revolutionize orbit, but it’s dealing with legal problems down on the surface of the Earth. A Texas family is suing the Elon Musk-led spacetech company, along with its affiliate company Dogleg Park LLC, for $20 million dollars after a car crash last June left one of them dead and the other four with spine and leg injuries. The Venegas family says they had to flee
Archaeologists studying Warsaw’s national collection of mummies expected to uncover a male priest Polish researchers examining an ancient Egyptian mummy that they expected to be a male priest were surprised when X-rays and computer tests revealed instead that it was a mummy of a woman who had been seven months pregnant. The researchers said on Thursday it was the world’s first known case of such
One Down China successfully launched the core module of its upcoming space station — an unofficial rival to the International Space Station (ISS) — on Thursday morning. The module, dubbed Tianhe, is now in low earth orbit after being ferried to space by China’s Long March-5B rocket, where it will stay until it can be assembled alongside other modules that will soon follow, CNN reports . It’s an i
“ How to Build a Life ” is a weekly column by Arthur Brooks, tackling questions of meaning and happiness. Arthur C. Brooks will discuss the science of happiness live at 11 a.m. ET on May 20. Register for In Pursuit of Happiness here . T he other afternoon, in an effort to avoid doing my work, I picked up Henry David Thoreau’s Walden . It turned out to be a fitting choice, as Thoreau has quite a b
Along the coast of Northern California near the Oregon border, the cool, moist air off the Pacific sustains a strip of temperate rainforests. Soaring redwoods and Douglas firs dominate these thick, wet woodlands, creating a canopy hundreds of feet high. But if you travel inland the mix of trees gradually shifts. Beyond the crest of the Klamath Mountains, you descend into an evergreen medley of su
The space station is expected to become fully operational in 2022 after about 10 missions to bring up more parts and assemble them in orbit China has launched the first module of its new space station, a milestone in Beijing’s ambitious plan to place a permanent human presence in space. The Tianhe or “Heavenly Harmony” unmanned core module, containing living quarters for three crew, was launched
Tens of millions of people in the United States have now been fully vaccinated against covid-19. These people are seeing friends, eating out, and—in rare cases—getting infected. But we shouldn’t panic: these kinds of “breakthrough infections” are entirely expected with any mass vaccine rollout. According to new figures released by the Centers for Disease Control and Prevention, more than 87 milli
Affective AI Artificial Intelligence developers have an uncanny knack for reinventing bunk pseudoscience. Whether it’s resuscitating phrenology as facial recognition that can supposedly determine someone’s personality or claiming to universally detect emotions based on appearance, the AI field has a long history of claiming to do the impossible. The challenge is that building an algorithm to dete
There was a hope that as more plants start to grow in Arctic and boreal latitudes as our warming climate makes those regions more hospitable for plants, those photosynthesizing plants would work to help sequester the atmospheric carbon dioxide that helped them flourish in the first place. But new research led by scientists at UC Irvine and Boston University, out in Nature Climate Change, suggests
Eye contact plays a fundamental role in human communication and relationships. However, humans also make eye contact with dog companions. According to new research by Hungarian ethologists, at least four independent traits affect dogs' ability to establish eye contact with humans. Short-headed, cooperative, young and playful dogs are the most likely to look into the human eye.
A new study led by University of Alberta geologists is shedding light on a fundamental mechanism of how Earth's continental plates heal, with implications for diamond exploration and locating economically important minerals.
China on Thursday launched the main module of its first permanent space station that will host astronauts long term, the latest success for a program that has realized a number of its growing ambitions in recent years.
My friend Robert Burton, a neurologist and author, wanted to share a song with me last year, and sent me a link to an NPR Tiny Desk Concert. “It’s wonderful to see truly new and inspiring music,” he wrote. I clicked open the link to a band who appeared to have journeyed from their mountain village in Russia to busk for tourists in the city square. Three women wore long white wedding dresses, thic
Hormones, steroids and antibiotics intended for use on dogs, horses, pigeons and farm animals intercepted by officials The government has been urged to open an investigation into illegal imports of veterinary drugs, after the number seized at the UK border increased dramatically last year. The Veterinary Medicines Directorate, the executive agency that regulates animal drugs, seized more than 40
Impact is on par with adult punch and larvae can move fast enough to capture prey, researchers observed There’s a small, iridescent crustacean you might have heard of: its powerful punch can crack holes in aquarium glass and be deployed at the speed of a bullet. These aggressive critters – called mantis shrimp – can also be trigger happy, keen to pummel prey, predators and even their own kind if
President Joe Biden’s first address to a joint session of Congress announced a great many breaks with the recent past. But in one very important way, Biden’s approach represents a depressing continuity with the defeated Trump administration: the turn from free trade to Buy American . All the investments in the American Jobs Plan will be guided by one principle: “Buy American.” American tax dollar
Study of 11,584 staff found hesitancy was higher among BAME workers, as well as younger staff Coronavirus – latest updates See all our coronavirus coverage Up to a quarter of British healthcare workers have expressed hesitancy towards Covid-19 vaccines, the first comprehensive study of NHS and care staff suggests. Conspiracy beliefs, a paucity of black and ethnic minority participants in vaccine
Venus is an enigma. It's the planet next door and yet reveals little about itself. An opaque blanket of clouds smothers a harsh landscape pelted by acid rain and baked at temperatures that can liquify lead.
Three days after we reported that Elsevier would be retracting a paper about COVID-19 and masks whose author claimed a false affiliation with Stanford, the publisher tells us that the “paper is misleading,” “misquotes and selectively cites published papers,” and that the data in one table is “unverified.” As we noted earlier this week: The … Continue reading
Last week US regulators recommended resuming use of the Johnson & Johnson vaccine, after deciding that a side effect involving blood clots was too rare to justify continuing the brief suspension they had imposed: there were just 15 reported instances out of 8 million doses. But even though the pause lasted just 11 days, it raised new concerns about whether Americans will trust vaccinations. Recen
Researchers have created a new, open-access tool that allows doctors and scientists to evaluate infant brain health by assessing the concentration of various chemical markers, called metabolites, in the brain. The tool compiled data from 140 infants to determine normal ranges for these metabolites.
By any measure, 2021 corporate planning isn’t business as usual. As the coronavirus pandemic grinds on, financial services institutions are coming out of crisis mode— addressing immediate cash management and operational challenges—with a renewed readiness for business growth. Fortunately, most businesses across industries are doing a good job of navigating the pandemic and its economic fallout. A
Dr Dominic Salisbury says poor-quality evidence lies behind some treatments such as CBT In reviewing the possible role of psychology in treating long Covid ( Long Covid is very far from ‘all in the mind’ – but psychology can still help us treat it , 27 April), Dr Carmine Pariante misrepresents why many ME/chronic fatigue syndrome patients remain sceptical about psychological interventions such as
Developing the capacity to annotate massive volumes of data while maintaining quality is a function of the model development lifecycle that enterprises often underestimate. It’s resource intensive and requires specialized expertise. At the heart of any successful machine learning/artificial intelligence (ML/AI) initiative is a commitment to high-quality training data and a pathway to quality data
The report highlights planting urban trees, increasing community green spaces, utilising brownfield sites and building sustainable drainage systems as effective nature-based solutions in cities to improve wellbeing, bring economic benefit, increase biodiversity and fight climate change.
Using the SRG/eROSITA all-sky survey data, scientists at the Max Planck Institute for Extraterrestrial Physics have found two previously quiescent galaxies that now show quasi-periodic eruptions. The nuclei of these galaxies light up in X-rays every few hours, reaching peak luminosities comparable to that of an entire galaxy. The origin of this pulsating behavior is unclear. A possible cause is a
Do all people with diabetes have an increased risk of severe COVID-19, or can specific risk factors also be identified within this group? A new study has focused precisely on this question and gained relevant insights.
Using experimental "cloud brightening" technology and introducing heat-tolerant corals could help slow the Great Barrier Reef's climate change-fuelled decline by up to 20 years, Australian scientists said Thursday.
China has successfully launched the first module of its new space station, part of an ambitious plan for Beijing to have a permanent human presence in space. The Tianhe, or Heavenly Harmony, unmanned core module, launched from Wenchang in China’s Hainan province, is expected to become fully operational in 2022, with about 10 more missions required to launch and assemble parts China launches first
Despite perceptions that entrepreneurs should always be positive about their ventures, a study found that entrepreneurs whose facial expressions moved through a mix of happiness, anger and fear during funding pitches were more successful. Researchers analyzed nearly 500 pitch videos from the online crowdfunding site Kickstarter. Those who varied their emotional expressions had more success on meet
The 3D Dirac and Weyl semimetals can be characterized by a charge chirality with the parallel or antiparallel locking of electron spin in its momentum. Such materials can exhibit a chiral magnetic effect associated with the near conservation of chiral charge. In this work, Bing Cheng and a research team in physics and astronomy at the Johns Hopkins University and materials science at the Universit
Ever made a complete mess in your kitchen while baking? At moments it may look like flour is floating in the air, but once you've added plenty of water and formed your dough, the bread becomes more like a ball. A similar process is at work in a far-flung solar system known as PDS 70, except the flour and water are swapped for gas and dust. In the case of planet PDS 70b, gas and dust are slowly bei
Scientists use many proxies to reconstruct Earth's ancient climates. Pollen, diatoms, geochemical isotopes and fossils, for example, all contribute to piecing together past-climate puzzles. The ubiquity and wide geographic range of insects—like the nonbiting midge (Order Diptera, Family Chironomidae), a type of fly—have made them a useful tool to reconstruct palaeoclimates around the world during
Human decision-making depends on the flexible processing of complex information, but how the brain may adapt processing to momentary task demands has remained unclear. Researchers have now outlined several crucial neural processes revealing that our brain networks may rapidly and flexibly shift from a rhythmic to a 'noisy' state when the need to process information increases.
Scientists have shown that almost all the world's glaciers are becoming thinner and losing mass – and that these changes are picking up pace. The team's analysis is the most comprehensive and accurate of its kind to date.
Drugs and vaccines circulate through the vascular system reacting according to their chemical and structural nature. In some cases, they are intended to diffuse. In other cases, like cancer treatments, the intended target is highly localized. The effectiveness of a medicine —and how much is needed and the side effects it causes —are a function of how well it can reach its target.
This star-studded image shows the irregular dwarf galaxy Sextans B, which lies around 4.5 million light-years from Earth at the outermost edges of the Local Group. With a total mass of around 200 million times the mass of the Sun, Sextans B hosts an intriguing variety of astronomical objects. Some of the most conspicuous are the ruby-red clouds of atomic hydrogen visible near the center of this im
In his Theaetetus , Plato remarks to Socrates: “This pathos is proper to the philosopher: It is the thaumazein . And philosophy has no other point of departure than this.” The word, which contains the root thauma , the same that appears in thaumaturgy, has often been translated as “wonder.” Philosophy is born out of amazement mixed with the curiosity that arises from facing something inexplicable
More than a quarter of American infants in 2018 had not received common childhood vaccines that protect them from illnesses such as polio, tetanus, measles, mumps and chicken pox, new research reveals.
Researchers studied 43 brain disorders and strongly affirmed a theory called the 'network degeneration hypothesis.' This theory holds that disease-related structural damage invades functional networks used in human behavior and often repeats in 'co-alteration networks.'
Scientists have recreated the reaction by which carbon isotopes made their way into different organic compounds, challenging the notion that organic compounds, such as amino acids, were formed by isotopically enriched substrates. Their discovery suggests that the building blocks of life in meteorites were derived from widely available substrates in the early solar system.
A precision magnetic valve originally designed to help steer a lander down to a comet has found a surprise terrestrial use through ESA's Technology Transfer and Patent Office: adding flavors to beverages within a few thousandths of a second per each can or bottle.
Earlier this month, I stood in line alongside an aide to Tam Tak-chi, both of us readying to meet with the imprisoned political activist at the Hong Kong prison complex where he is being held. As Tam’s assistant waited her turn for supplies she brought for Tam to be inspected, a woman approached from the nearby waiting area and the two exchanged excited hellos before hugging and chatting briefly.
Oliver Burkeman’s long read pitches philosophical readers against the more scientifically minded ones I read the online version of Oliver Burkeman’s long read that raises the question of whether free will is an illusion, and shortly afterwards read the same article again in print (The clockwork universe, Journal, 27 April). I was surprised when I realised that the brief reference to quantum physi
Researchers have shown that the composition of a baby's first feces — a thick, dark green substance known as meconium — is associated with whether or not a child will develop allergies within their first year of life. By analyzing meconium samples from 100 infants, they show that the development of a healthy immune system and microbiota may start well before a child is born.
A new strain of the Lacticaseibacillus rhamnosus GG probiotic is able to utilise both lactose and casein as well as reproduce in dairy products. The discovery can make it unnecessary to separately add the probiotic to dairy products, in addition to which it could fare better in the intestine, boosting gut health.
A team of researchers from Universidade Estadual Paulista, Universidade Federal do Mato Grosso do Sul and Projeto Dacnis, São Francisco Xavier and Ubatuba has discovered a new species of pumpkin toadlet. In their paper published on the open-access site PLOS ONE, the group describes their study of pumpkin toadlets in Brazil, how they found the new species and what sets it apart from other pumpkin t
In August of 2009, typhoon Morakot passed over Taiwan, triggering over 22,000 landslides and adding another chapter to the forced migration of indigenous settlements in the mountainous areas. A new study recently published in the journal Tectonophysics has analyzed how extreme weather such as that caused by Morakot, when coupled with local geological conditions, can trigger landslides that have ca
Scientists have developed an algorithm that provides valuable insights into the physics underlying quantum systems – paving the way for significant advances in quantum computation and sensing, and potentially turning a new page in scientific investigation.
Donating to a charity is often driven by emotion rather than by calculated assessments based on how to make the biggest impact. A new article looks at how people can be encouraged to direct their charitable contributions in ways that allow them to get more bang for the buck.
Particularly sensitive to chemical modifications, messenger RNAs (mRNAs) are molecules responsible for transmitting the information encoded in our genome, allowing for the synthesis of proteins, which are necessary for the functioning of our cells. Two teams from the University of Geneva (UNIGE), Switzerland, in collaboration with the Norwegian University of Science and Technology (NTNU), have foc
Scientists at Tokyo Institute of Technology developed a new strategy for producing a wide range of organotin compounds, which are the building blocks of many organic synthesis methods. Their approach is based on the photoexcitation of stannyl anions, which alters their electronic state and increases their selectivity and reactivity to form useful compounds. This protocol will be helpful for the ef
As part of a laboratory experiment, Rebecca Holmes examined water bottles that had been acquired from abroad expecting to find bisphenol A (BPA), a human-made component commonly found in polycarbonate plastics used to make consumer products.
Researchers from Osaka University, Japan and the University of Adelaide, Australia have worked together to produce the new multiplexer made from pure silicon for terahertz-range communications in the 300-GHz band.
As we continue to manage the ongoing pandemic, the role that viruses play has never been more relevant. They are present and attack pretty much every single living organism, from the biggest whale to the smallest bacteria, including a type of blue-green algae known as cyanobacteria.
When heavy ions, accelerated to the speed of light, collide with each other in the depths of European or American accelerators, quark-gluon plasma is formed for fractions of a second, or even its 'cocktail' seasoned with other particles. According to scientists from the IFJ PAN, experimental data show that there are underestimated actors on the scene: photons. Their collisions lead to the emission
If you stumble upon an unusual rock that could be a meteorite, do not place a magnet on it to see if it's magnetic—you'd end up erasing 4.5 billion years of magnetic history. Meteorites are remnants of our solar system's first protoplanets and, in some cases, retain a record of the magnetic fields they've experienced in the distant past.
Since the mid-20th century, scientists have been looking for evidence of intelligent life beyond our solar system. For much of that time, scientists who are engaged in the search for extraterrestrial intelligence (SETI) have relied on radio astronomy surveys to search for signs of technological activity (aka "technosignatures"). With 4,375 exoplanets confirmed (and counting!) even greater efforts
A Philadelphia nonprofit is stirring controversy with its plan to open a facility that would allow people to inject heroin and other drugs under the watchful eye of a nurse. What critics fail to realize is that there is already a history of government support for such supervised injection sites.
You’ve probably seen plenty of photos of the Curiosity Mars rover and its successor Perseverance. However, those photos were all taken here on Earth or by the rovers themselves on the red planet. For the first time, we now have an aerial shot of NASA’s robotic explorer, courtesy of the Ingenuity helicopter . Ingenuity rode to Mars attached to the Perseverance rover, but NASA deployed the drone a
Hydrogen as a clean, renewable alternative to fossil fuels is part of a sustainable-energy future, and very much already here. However, lingering concerns about flammability have limited widespread use of hydrogen as a power source for electric vehicles. Previous advances have minimized the risk, but new research from the University of Georgia now puts that risk in the rearview mirror.
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. Yesterday’s new, more relaxed CDC guidelines around mask wearing were greeted with both relief and confusion. The recommendations, which were accompanied by a series of baffling charts , are “simu
Many marine biologists identify a gateway drug into their obsession, and for Heather Koldewey, it was the seahorse. Who can blame her? Seahorses seem to have evolved not entirely in the ocean, but also by way of a whimsical storybook, in which animal body parts are all mixed up. A fish with the head of a horse? A male that gets pregnant, gives birth, and is monogamous? Seahorses led her not only
Patients whose dental procedure pain was treated with opioids were more likely to have an overdose within 90 days, as were their family members, a new study of records from millions of people with private and Medicaid dental coverage shows.
Microalgae of the dinoflagellate group have engaged in intracellular symbioses with corals since primeval times. Researchers recently discovered that such symbioses depend on the ability of the algae to suppress the immune system of their host cell and thereby avoid being 'spit out' again. The researchers also found indications that this cellular immune response is an evolutionarily ancient mechan
As anyone who has ever tried to clean a home knows, ridding yourself of dust is a Sisyphean effort. No surface stays free of it for long. It turns out that space is somewhat similar. Space is filled with interplanetary dust, which the Earth constantly collects as it plods around the sun—in orbit, in the atmosphere, and if it's large enough, on the ground as micrometeorites.
Antibiotic resistance poses a serious threat to human health. Resistant infections now cause more than 750,000 deaths per year and are predicted to increase to 10 million deaths per year by 2050. It is known that treating patients with antibiotics is associated with the emergence of resistance—and worse outcomes for patients. But how resistance emerges during infections remains poorly understood.
When President Joe Biden addresses a joint session of Congress tonight a common thread will likely run through much of his narrative: resilience. Beyond touting his administration's accomplishments, Biden is expected to use the spotlight to pitch his $2.3 trillion American Jobs Plan, a wide-ranging infrastructure initiative that promises "every dollar" spent on rebuilding highways, airports, water
Anaerobic fungi, which die in the presence of oxygen, dwell in herbivore guts and help them digest their last leafy meal. In their evolutionary history, these fungi branched off early from aerobic fungi, which can breathe oxygen—just like we do. Oxygen is a rich source of energy, and because anaerobic fungi can't harness it, scientists long held that these fungi don't have the energy to make compl
A suite of scientific balloons is about to lift off from NASA's Columbia Scientific Balloon Facility's field site in Fort Sumner, New Mexico, carrying instruments that will help scientists understand the connection between the Sun and Earth.
Forget diamonds—plastic is forever. It takes decades, or even centuries, for plastic to break down, and nearly every piece of plastic ever made still exists in some form today. We've known for a while that big pieces of plastic can harm wildlife—think of seabirds stuck in plastic six-pack rings—but in more recent years, scientists have discovered microscopic bits of plastic in the water, soil, and
An international team led by Xiangming Xiao, George Lynn Cross Research Professor in the Department of Microbiology and Plant Biology, University of Oklahoma College of Arts and Sciences, published a paper in the April issue of the journal Nature Climate Change that has major implications on forest policies, conservation and management practices in the Brazilian Amazon.
There is an important absence of evidence regarding the effectiveness of a potentially cost-efficient intervention to prevent indoor transmission of respiratory infections, including COVID-19, warns a study by researchers at the University of Bristol.
Scientists have been able to track how a multi-drug resistant organism is able to evolve and spread widely among cystic fibrosis patients – showing that it can evolve rapidly within an individual during chronic infection. The researchers say their findings highlight the need to treat patients with Mycobacterium abscessus infection immediately, counter to current medical practice.
The ambitious Vertebrate Genomes Project may have some good news for two endangered species: the kakapo and the vaquita. The flightless kakapo of New Zealand is in trouble. The world’s heaviest parrot—representing one of the most ancestral branches of the parrot family tree—is nearly extinct, with barely 200 adults plodding the underbrush of four small islands. Whether the last of the kakapos hav
Robotic probes launched by NASA, the European Space Agency (ESA), and others are gathering information across the solar system. We currently have spacecraft in orbit around the Sun, (one on its way to Mercury,) Venus, Earth, the Moon, Mars, Jupiter, and two operational rovers plus a helicopter on the surface of Mars. Astronauts aboard the International Space Station are still performing experimen
An estimated 90 to 95% of Indigenous people in Amazonia died after European contact. This population collapse is postulated to have caused decreases in atmospheric carbon dioxide concentrations at around 1610 CE, as a result of a wave of land abandonment in the wake of disease, slavery, and warfare, whereby the attendant reversion to forest substantially increased terrestrial carbon sequestration
Islands are among the last regions on Earth settled and transformed by human activities, and they provide replicated model systems for analysis of how people affect ecological functions. By analyzing 27 representative fossil pollen sequences encompassing the past 5000 years from islands globally, we quantified the rates of vegetation compositional change before and after human arrival. After huma
Megafauna play important roles in the biosphere, yet little is known about how they shape dryland ecosystems. We report on an overlooked form of ecosystem engineering by donkeys and horses. In the deserts of North America, digging of ≤2-meter wells to groundwater by feral equids increased the density of water features, reduced distances between waters, and, at times, provided the only water prese
Controlling the chiral degree of freedom in matter has long been an important issue for many fields of science. The spin-spiral order, which exhibits a strong magnetoelectric coupling, gives rise to chirality irrespective of the atomic arrangement of matter. Here, we report the resonantly enhanced natural optical activity on the electrically active magnetic excitation, that is, electromagnon, in
Biological ion channels rapidly and selectively gate ion transport through atomic-scale filters to maintain vital life functions. We report an atomic-scale ion transistor exhibiting ultrafast and highly selective ion transport controlled by electrical gating in graphene channels around 3 angstroms in height, made from a single flake of reduced graphene oxide. The ion diffusion coefficient reaches
Risks from induced earthquakes are a growing concern that needs effective management. For hydraulic fracturing of the Eagle Ford shale in southern Texas, we developed a risk-informed strategy for choosing red-light thresholds that require immediate well shut-in. We used a combination of datasets to simulate spatially heterogeneous nuisance and damage impacts. Simulated impacts are greater in the
Improving materials used to make qubits is crucial to further progress in quantum information processing. Of particular interest are semiconductor-superconductor heterostructures that are expected to form the basis of topological quantum computing. We grew semiconductor indium antimonide nanowires that were coated with shells of tin of uniform thickness. No interdiffusion was observed at the inte
DNA modifications vary in form and function but generally do not alter Watson-Crick base pairing. Diaminopurine (Z) is an exception because it completely replaces adenine and forms three hydrogen bonds with thymine in cyanophage S-2L genomic DNA. However, the biosynthesis, prevalence, and importance of Z genomes remain unexplored. Here, we report a multienzyme system that supports Z-genome synthe
Cells have two purine pathways that synthesize adenine and guanine ribonucleotides from phosphoribose via inosylate. A chemical hybrid between adenine and guanine, 2-aminoadenine (Z), replaces adenine in the DNA of the cyanobacterial virus S-2L. We show that S-2L and Vibrio phage PhiVC8 encode a third purine pathway catalyzed by PurZ, a distant paralog of succinoadenylate synthase (PurA), the enz
Bacteriophage genomes harbor the broadest chemical diversity of nucleobases across all life forms. Certain DNA viruses that infect hosts as diverse as cyanobacteria, proteobacteria, and actinobacteria exhibit wholesale substitution of aminoadenine for adenine, thereby forming three hydrogen bonds with thymine and violating Watson-Crick pairing rules. Aminoadenine-encoded DNA polymerases, homologo
Substitution for aspartic acid (D) by glycine (G) at position 614 in the spike (S) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) appears to facilitate rapid viral spread. The G614 strain and its recent variants are now the dominant circulating forms. Here, we report cryo–electron microscopy structures of a full-length G614 S trimer, which adopts three distinct prefusion
CRISPR-Cas systems provide RNA-guided adaptive immunity in prokaryotes. We report that the multisubunit CRISPR effector Cascade transcriptionally regulates a toxin-antitoxin RNA pair, CreTA. CreT (Cascade-repressed toxin) is a bacteriostatic RNA that sequesters the rare arginine tRNA UCU (transfer RNA with anticodon UCU). CreA is a CRISPR RNA–resembling antitoxin RNA, which requires Cas6 for matu
Transcription factor IID (TFIID) recognizes core promoters and supports preinitiation complex (PIC) assembly for RNA polymerase II (Pol II)–mediated eukaryotic transcription. We determined the structures of human TFIID–based PIC in three stepwise assembly states and revealed two-track PIC assembly: stepwise promoter deposition to Pol II and extensive modular reorganization on track I (on TATA–TFI
Although almost all mycobacterial species are saprophytic environmental organisms, a few, such as Mycobacterium tuberculosis , have evolved to cause transmissible human infection. By analyzing the recent emergence and spread of the environmental organism M. abscessus through the global cystic fibrosis population, we have defined key, generalizable steps involved in the pathogenic evolution of myc
Human health is dependent on a plentiful and nutritious supply of food, primarily derived from crop plants. Rhythmic supply of light as a result of the day and night cycle led to the evolution of circadian clocks that modulate most plant physiology, photosynthesis, metabolism, and development. To regulate crop traits and adaptation, breeders have indirectly selected for variation at circadian gen
Strain 68-1 rhesus cytomegalovirus (RhCMV) vectors expressing simian immunodeficiency virus (SIV) antigens elicit CD8 + T cells recognizing epitopes presented by major histocompatibility complex II (MHC-II) and MHC-E but not MHC-Ia. These immune responses mediate replication arrest of SIV in 50 to 60% of monkeys. We show that the peptide VMAPRTLLL (VL9) embedded within the RhCMV protein Rh67 prom
Lightning bolts break apart nitrogen and oxygen molecules in the atmosphere and create reactive chemicals that affect greenhouse gases. Now, a team of atmospheric chemists and lightning scientists have found that lightning bolts and, surprisingly, subvisible discharges that cannot be seen by cameras or the naked eye produce extreme amounts of the hydroxyl radical—OH—and hydroperoxyl radical—HO2.
Cambridge plant scientists say circadian clock genes, which enable plants to measure daily and seasonal rhythms, should be targeted in agriculture and crop breeding for higher yields and more sustainable farming.
Research has shed new light on the impact of humans on Earth's biodiversity. The findings suggest that the rate of change in an ecosystem's plant-life increases significantly during the years following human settlement, with the most dramatic changes occurring in locations settled in the last 1500 years.
Researchers at Karolinska Institutet in Sweden have discovered a mechanism through which meningitis-causing bacteria can evade the immune system. In laboratory tests, they found that Streptococcus pneumoniae and Haemophilus influenzae respond to increasing temperatures by producing safeguards that keep them from getting killed. This may prime their defenses against our immune system and increase t
Tiny larvae of the Philippine mantis shrimp (Gonodactylaceus falcatus) display the ultra-fast movements for which these animals are known, even when they are smaller than a short grain of rice. Their ultra-fast punching appendages measure less than 1 mm, and accelerate 100 times faster than a Formula One race car. However, they violate a rule of thumb that smaller is faster; the adults punch even
Thirty-one new articles were published online ahead of print for Geology in April. Topics include shocked zircon from the Chicxulub impact crater; the Holocene Sonoran Desert; the architecture of the Congo Basin; the southern Death Valley fault; missing water from the Qiangtang Basin; sulfide inclusions in diamonds; how Himalayan collision stems from subduction; ghost-dune hollows; and the history
A new study shows just how fast glaciers have lost thickness and mass over the past two decades. Glaciers are a sensitive indicator of climate change—and one that can be easily observed. Regardless of altitude or latitude, glaciers have been melting at a high rate since the mid-20th century. Until now, however, the full extent of ice loss has only been partially measured and understood. The new
Two studies related to percutaneous coronary intervention (PCI) evaluating the use of risk-avoidance strategies and robotic-assisted technology, respectively, are being presented as late-breaking clinical science at SCAI 2021 Scientific Sessions. An analysis of strategically avoiding high-risk PCI cases indicates systematic risk-avoidance does not improve, and may worsen, the quality of hospital P
An analysis of growth patterns in transcatheter aortic valve replacement (TAVR) programs across United States hospitals is being presented as late-breaking clinical science at the Society for Cardiovascular Angiography& Interventions (SCAI) 2021 Scientific Sessions. The findings indicate that TAVR hospital programs are predominately located in metropolitan areas serving patients with higher socioe
Results from a new study find a broad range of patients who typically undergo revascularization for stable ischemic heart disease (SIHD) in the U.S. did not meet enrollment criteria for the ISCHEMIA trial. The data, which was presented today as late-breaking clinical science at the Society for Cardiovascular Angiography & Interventions (SCAI) 2021 Scientific Sessions, demonstrates a minority of SI
Although robotic devices are used in everything from assembly lines to medicine, engineers have a hard time accounting for the friction that occurs when those robots grip objects – particularly in wet environments. Researchers have now discovered a new law of physics that accounts for this type of friction, which should advance a wide range of robotic technologies.
The United Kingdom government plans to implement mass scale population testing for SARS-CoV-2 infection using Lateral Flow Devices (LFDs), yet the devices' sensitivity is unknown. A study published in the open access journal PLOS Biology by Alan McNally at University of Birmingham, UK, and colleagues suggests while LFDs are highly effective in identifying SARS-CoV-2 in individuals with high quanti
The morning after the 2020 presidential election, as ballots were still being counted in several battleground states and then-President Donald Trump drummed up dangerous conspiracy theories about the impending results, many Ethiopians in the U.S. woke up to distressing political news from back home, too. The Ethiopian prime minister, Abiy Ahmed, had announced a military offensive in Tigray, the n
The image of rows of chairs and desks facing a teacher at a blackboard has been a reality for decades. However, research reveals that this way of organizing the classroom furniture in schools is not the best way for favoring the learning process. Especially if the needs of 21st-century students are taken into account, who, according to the OECD, require a social environment that fosters autonomy,
Small and medium-sized manufacturing enterprises (SMEs) face many obstacles and difficulties (economic, technical, cultural, etc.) when it comes to implementing Industry 4.0. "These are transition processes that are economically costly, and in which SMEs often come up against technical and cultural problems, as they are not cognizant of how to make this transition, or of the benefits their compani
Microalgae of the dinoflagellate group are known for their ability to survive in other animal cells. These tiny single-cell organisms have engaged in mutually beneficial relationships with corals since primeval times. By passing on critical nutrients to their hosts, dinoflagellates allow corals to thrive even in barren areas. A research team from the Centre for Organismal Studies (COS) of Heidelbe
The burden of student loans in the U.S. continues to grow unabatedly, currently accounting for a total of $1.7 trillion in household debt among nearly 45 million borrowers. "The introduction of income-based repayment over the past decade has made student loans rather complicated products," Paolo Guasoni of Dublin City University said. As borrowers navigate this complex process, they face long-term
Individuals who self-identify as Republicans became more skeptical of a potential COVID-19 vaccine and other inoculations, such as the flu shot, over the course of the pandemic, reveals a new study by the University of California San Diego's Rady School of Management.
With threats of water scarcity complicating the need to feed a growing global population, it is more important than ever to get crop irrigation right. Overwatering can deplete local water supplies and lead to polluted runoff, while underwatering can lead to sub-optimal crop performance. Yet few farmers use science-based tools to help them decide when and how much to water their crops.
A study by University of Guam researchers has found that shade can mitigate the effects of heat stress on corals. The study, which was funded by the university's National Science Foundation EPSCoR grant, was published in February in the peer-reviewed Marine Biology Research journal.
Many meteorological satellite networks are constantly scanning Earth, providing vital research data and real-time, life-saving weather information. Since China began its initial development in 1970, the Fengyun (FY) series of meteorological satellites have advanced considerably throughout more than 50 years. While FY satellites primarily focus on the atmosphere, they are capable of observing compl
Melting of the Arctic ice sheets caused rapid methane release from the ocean floor during the last two deglaciations, according to a new study. A similar release is likely to happen today, and should be included in climate models, say the scientists.
A research group has succeeded in studying 'translation factors' – important components of a cell's protein synthesis machinery – that are several billion years old. By studying these ancient 'resurrected' factors, the researchers were able to establish that they had much broader specificities than their present-day, more specialized counterparts.
In a new resource for the scientific community, published today in Nature Biotechnology, researchers in the lab of Neville Sanjana, Ph.D., at the New York Genome Center (NYGC) and New York University (NYU) developed CRISPR-sciATAC, a novel integrative genetic screening platform that jointly captures CRISPR gene perturbations and single-cell chromatin accessibility genome-wide. With this technology
Forskare har kartlagt nästan alla jordens glaciärer och hur de förändrats från början av 2000-talet fram till idag. Resultatet visar att takten som glaciärerna smälter i har fördubblats. Spela videon ovan för att se hur man observerar glaciärer.
Scientists have developed a small, flexible device that can convert heat emitted from human skin to electrical power. In their research the team showed that the device could power an LED light in real time when worn on a wristband. The findings suggest that body temperature could someday power wearable electronics such as fitness trackers.
Scientific Reports, Published online: 29 April 2021; doi:10.1038/s41598-021-89264-7 Author Correction: Periostin Upregulates Wnt/β-Catenin Signaling to Promote the Osteogenesis of CTLA4 -Modified Human Bone Marrow-Mesenchymal Stem Cells
The Mayo Clinic data scientists who developed highly accurate computer modeling to predict trends for COVID-19 cases nationwide have new research that shows how important a high rate of vaccination is to reducing case numbers and controlling the pandemic.
Reductionism is the view that everything true about the world can be explained by atoms and their interactions. Emergence claims that reductionism is wrong, and the world can evolve new stuff and new laws that are not predictable from "nothing but" atoms. Which perspective on science is correct has huge implications, not only for ourselves but for everything from philosophy to economics to politi
Engineering immune system cells to do what we’d like them to do is one of the big areas of medical research these days, and this new paper could be a real advance in the area. A team out of UCSF with several collaborators reports on a new way around one of the big problems in this area – these various immune system cells are great and powerful, but they can be too great and powerful if you can’t
Alzheimer's disease is characterized by the abnormal accumulation and spread of the tau protein in the brain. An international study can now show how tau spreads according to four distinct patterns that lead to different symptoms with different prognoses of the affected individuals. The study was published in Nature Medicine.
Today, the G10K sponsored Vertebrate Genomes Project (VGP) announces their flagship study and associated publications focused on genome assembly quality and standardization for the field of genomics. This study includes 16 diploid high-quality, near error-free, and near complete vertebrate reference genome assemblies for species across all taxa with backbones (i.e., mammals, amphibians, birds, rep
Nature Communications, Published online: 29 April 2021; doi:10.1038/s41467-021-21551-3 Advanced ecological modelling reveals how Sahul (Australia and New Guinea) was first peopled, suggesting the most probable routes and surprisingly rapid early settlement of this continent by anatomically modern humans starting 50,000 to 75,000 years ago.
UC San Diego School of Medicine researchers discovered one way in which SARS-CoV-2 hijacks human cell machinery to blunt the immune response, allowing it to establish infection, replicate and cause disease.
A feedback methodology can test individuals with a high probability of being infected and identify them before symptoms appear. This probability acts as an input to selecting additional individuals for testing. By reducing the lapse in time between contact with an infected person and a COVID-19 test, it has been demonstrated that, when combined with contact tracing, this method may reduce the rate
Microalgae of the dinoflagellate group have engaged in intracellular symbioses with corals since primeval times. Researchers from the Centre for Organismal Studies of Heidelberg University recently discovered that such symbioses depend on the ability of the algae to suppress the immune system of their host cell and thereby avoid being "spit out" again. The researchers also found indications that t
During the first wave of the corona pandemic, 36 per cent fewer men were diagnosed with prostate cancer in Sweden than in previous years. On the other hand, the number of patients receiving curative treatment for prostate cancer was unaffected. This is shown by a new register study led by Uppsala University researchers, whose results are published in the Scandinavian Journal of Urology.
Immunotherapies that fight cancer have been a life-saving advancement for many patients, but the approach only works on a few types of malignancies, leaving few treatment options for most cancer patients with solid tumors. Now, in two related papers published April 28, 2021 in Science Translational Medicine, researchers at UCSF have demonstrated how to engineer smart immune cells that are effectiv
Researchers have now discovered that electrodes in lithium batteries containing cobalt can be reused as is after being newly saturated with lithium. In comparison to traditional recycling, which typically extracts metals from crushed batteries by melting or dissolving them, the new process saves valuable raw materials, and likely also energy.
At some point in its early history, Mars could have had a thin layer of icy, high-altitude clouds that caused a greenhouse effect, new research suggests. The theory helps explain one of the great puzzles of modern space science that the view from NASA’s Perseverance, which just landed on Mars, neatly sums up: Today Mars is a desert planet, and yet the rover is sitting right next to an ancient riv
Researchers at Karolinska Institutet and the Public Health Agency of Sweden have studied newborn babies whose mothers tested positive for SARS-CoV-2 during pregnancy or childbirth. The results show that although babies born of test-positive mothers are more likely to be born early, extremely few were infected with COVID-19. The study, which is published in the esteemed journal JAMA, supports the S
With threats of water scarcity complicating the need to feed a growing global population, it is more important than ever to get crop irrigation right. Overwatering can deplete local water supplies and lead to polluted runoff, while underwatering can lead to sub-optimal crop performance. Yet few farmers use science-based tools to help them decide when and how much to water their crops.
A survey of over 32,000 caregivers of youth in Chicago Public Schools found that around a quarter of children and adolescents were described as stressed, anxious, angry or agitated after pandemic-related school closures and the switch to remote learning. Around a third of youth were described by caregivers as lonely and only one-third were described as having positive social and peer relationships
Particularly sensitive to chemical modifications, mRNAs are molecules responsible for transmitting the information encoded in our genome, allowing for the synthesis of proteins. Two teams (UNIGE) have focused on a specific type of chemical modification – called methylation – of mRNA molecules in the small worm Caenorhabditis elegans. They found that methylation on a particular sequence of an mRNA
Researchers in Japan have compiled a first-of-its-kind genetic database for autoimmune and autoinflammatory diseases. This resource will allow experts to more deeply understand how immune disorders develop and plan future drug discovery projects. Scientists also hope this atlas of immune-related genome data may eventually be applied to investigations of infectious diseases like COVID-19.
What The Study Did: The association between exposure to antibiotics before birth and during the first year of life and the development of eczema during childhood was evaluated among children in Sweden.
What The Study Did: Using insurance claims data, the change in screening rates for breast, colorectal and prostate cancers during the COVID-19 pandemic were estimated as well as the overall decline in cancer screening last year among the U.S. population.
Concerns about fertility often influence how young women with breast cancer approach treatment decisions and are a reason for forgoing or delaying hormone-blocking therapy, a new study by Dana-Farber Cancer Institute investigators shows.
By simulating the physiology and decisions of early way-finders, an international team of archaeologists, geographers, ecologists, and computer scientists has mapped the probable "superhighways" that led to the first peopling of the Australian continent some 50,000-70,000 years ago.
A team of University of British Columbia researchers has shown that the composition of a baby's first poop–a thick, dark green substance known as meconium–is associated with whether or not a child will develop allergies within their first year of life. By analyzing meconium samples from 100 infants, they show that the development of a healthy immune system and microbiota may start well before a
Coral reefs provide shelter, sustenance and stability to a range of organisms, but these vital ecosystems would not exist if not for the skeletal structure created by stony corals. Now, KAUST scientists together with an international team have revealed the underlying genetic story of how corals evolved from soft-bodied organisms to build the myriad calcified structures we see today.
A new essay suggests that evolution both dooms us to certain diseases and provides ways to help improve medical care. Technology like polygenic risk scores already allow us to use genetics to predict and improve health outcomes. Future treatment options may begin with a review of your genetics. For every great evolutionary innovation, there is a new way for things to go wrong. Multicellularity al
Depression screening among cancer patients improved by 40 percent to cover more than 90 percent of patients under a quality improvement program launched by a multidisciplinary team at UT Southwestern Medical Center and Southwestern Health Resources.
Nature, Published online: 29 April 2021; doi:10.1038/d41586-021-01126-4 Nature talks to vaccine designer Vicente Vérez Bencomo about the country’s efforts to produce its own coronavirus jabs — and set a record.
Ungefär 100 000 personer har Alzheimers sjukdom i Sverige, i världen är cirka 20 miljoner människor drabbade. Sjukdomen beror på att skadliga proteiner lagras i hjärnan. F&F har tidigare skrivit om hur spridningen av det giftiga proteinet tau kan kopplas till sjukdomen. Nu har Lundaforskarna, tillsammans med forskare vid bland annat McGill University i Kanada, mer i detalj undersökt spridningen av
Vaccines are medicines that train the body to defend itself against future disease, and they have been saving human lives for hundreds of years. Vaccines are medicines that train the body to defend itself against future disease. From: Scientific American
Researchers found a substantial reduction in the use of minimally invasive surgery for cervical cancer after publication of the results a major study called the Laparoscopic Approach to Cervical Cancer (LACC) in November 2018.
Within the past decade, next-generation sequencing technologies have revolutionized the way in which genetic data are generated and analyzed. In the field of phylogenetics, this has meant that researchers are rapidly reconstructing the tree of life, a goal that biologists have been working toward since Darwin sketched the first phylogeny in his notebook in 1837.
Why are humans so slow to react to looming crises, like a forewarned pandemic or a warming planet? It's because we're reluctant to rethink, say organizational psychologist Adam Grant. From a near-disastrous hike on Panama's highest mountain to courageously joining his high school's diving team, Grant borrows examples from his own life to illustrate how tunnel vision around our goals, habits and id
Polish researchers examining an ancient Egyptian mummy that they expected to be a male priest were surprised when X-rays and computer tests revealed instead it was a mummy of a woman who had been seven months pregnant.
Elektrifieringen ledde till fler strejker, men det var inte de som hotades av den nya tekniken som gick ut i konflikt. I stället rörde det sig om arbetargrupper som fått en starkare förhandlingsposition – tack vare teknikutvecklingen. Arbetsmarknadens villkor påverkas av ny teknik. I dag handlar diskussionen om automatiseringens effekter på arbetsmarknaden, om jobben försvinner när datorerna tar
An analysis of Twitter activity between March 1 and Aug. 1, 2020, found strong support by U.S. users for wearing face coverings and that a media focus on anti-mask opinions fueled the rhetoric of those opposed, report University of Oregon researchers.
Amsterdam, April 29, 2021 – The clinical presentation and underlying biology of Parkinson's disease (PD) varies significantly, but attempts to cluster cases into a limited number of subtypes have questionable applicability and relevance, reports the international Task Force for PD Subtypes in the Journal of Parkinson's Disease. Their systematic review of studies reporting a subtyping system for th
Osaka University and the University of Adelaide researchers have invented ultrasmall and ultrahigh-speed multiplexers that can separate and combine electromagnetic waves in the terahertz frequency bands, accelerating research and development of wireless communications towards 1 Terabit/s.
Reservoirs are indispensable for global drinking water supply. To protect them from silting, overfertilization, and pollution, anticipating monitoring of water quality is required. A Brazilian-German consortium led by Karlsruhe Institute of Technology (KIT) has now developed user-friendly measurement and monitoring methods that are particularly suited for regions with limited data availability. Am
Technical progress has also found its way into the nature experience of recreational angling. Device innovations such as echo sounders, underwater cameras or drones make it easier to track and catch fish. An international team with Professor Robert Arlinghaus from the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) and the Humboldt Universität zu Berlin has summarized in a study
An animal scientist with Wageningen University & Research in the Netherlands has created an artificial-intelligence-based application that can gauge the emotional state of farm animals based on photographs taken with a smartphone. In his paper uploaded to the bioRxiv preprint server, Suresh Neethirajan describes his app and how well it worked when tested.
Adult mantis shrimp pack an explosive punch that can split water, but no crustacean emerges fully formed. Minute larvae can undergo six or seven transformations before emerging as fully developed adults and limbs and maneuvers develop over time. So, when do mantis shrimp larvae acquire the ability to pulverize their dinner and how powerful are the punches that these mini crustaceans pack? "We knew
A team of researchers affiliated with several institutions in China and one in the U.S. has found evidence of multiple novel Asgard MAGs that expands the phylogenetic diversity of Asgard. In their paper published in the journal Nature, the group describes their analysis of multiple complete or mostly complete genomes of Asgard archaea.
When studying the history of life evolutionary biologists and paleontologists have no choice but to look where the light is good. There are fossil windows into specific times and places in the past, and through these we glimpse a moment in biological history. We string these moments together to map out the past, but we know there are a lot of missing pieces. One relatively dark passage in the his
Stream Full Episodes of Street Outlaws: America's List: discovery+ ► https://www.discoveryplus.com/show/street-outlaws-americas-list Discovery ► https://go.discovery.com/tv-shows/street-outlaws-americas-list/ Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Follow Us on TikTok: https://www.tiktok.com/@Discovery We're on Instagram! https://instagram.com/Discovery Join Us on Facebook: https
A collaboration between experts and a Danish-based, global reaching patient organization has resulted in a groundbreaking medical publication, where guidelines are being presented on how to manage patients with unexplained low blood sugar.
The Sustainability Consortium released Wednesday, April 28, the report "Project WearEver: Demonstrating the Feasibility of Using Digital Tags to Measure Clothing Use," in collaboration with Arizona State University, North Carolina State University and the U of A. The report follows the 2019-2020 pilot project, called Project WearEver, that concluded the following findings:
Nature, Published online: 29 April 2021; doi:10.1038/d41586-021-01136-2 It took just four months to reach this global milestone, and hitting to the two-billion mark could happen even faster, say scientists.
The online world is continuously expanding—always aggregating more services, more users, and more activity. Last year, the number of websites registered on the “.com” domain surpassed 150,000,000 . However, more than a quarter of a century since its first commercial use, the growth of the online world is now slowing down in some key categories. We conducted a multi-year research project analyzing
Efter en rejäl vinter kom våren i gång ordentligt i södra Sverige. Flera bakslag i vädret gjorde sen läget ovanligt oklart. Svenska Botaniska Föreningen vill veta hur växterna reagerat på denna ryckiga vår, och uppmanar alla att kolla upp en handfull vårtecken under Valborgshelgen. Vårkollen är ett medborgarforskningsprojekt där frivilliga och professionella forskare samarbetar. Det genomfördes f
The double helix of DNA is one of the most iconic symbols in science. By imitating the structure of this complex genetic molecule we have found a way to make artificial muscle fibers far more powerful than those found in nature, with potential applications in many kinds of miniature machinery such as prosthetic hands and dextrous robotic devices.
If a friend boasts of having a "big-brained" dog, your reaction is probably not to ask "relative to what?" You would simply assume your friend thinks their dog is pretty smart. But are we always right to equate big brains with greater intelligence?
When faced with job losses, a sudden drop in income, or other stormy economic conditions, consumers will likely need to shift their purchasing priorities and preferences. Those changed preferences outlast the contraction and shape choices even after income recovers.
Physicists from the University of Luxembourg have recently presented a new material which can become a key component of a new infrastructure designed to help robots understand their surroundings. The team shows that the material can be used to introduce tailor-made graphical information in the environment, which is invisible to humans but easily readable by robots. The new material and the innovat
A substantial number of adults in the United States between the ages of 21 and 62 felt anxiety and stress about their personal finances well before the onset of the COVID-19 pandemic, according to a new report published today.
Substantial tissue loss can be the result from different causes, including cancer, injury, and infection. Reconstructive surgery attempts to mitigate the damage. Currently, the clinical "gold standard" in the field of reconstructive surgery is the autograft, which entails harvesting tissue from one part of the patient's body, and the transferring it to the damaged site. For example, to reconstruct
Using ultra-high field magnetic resonance imaging (MRI) to map the brains of people with Down syndrome (DS), researchers from Case Western Reserve University, Cleveland Clinic, University Hospitals and other institutions detected subtle differences in the structure and function of the hippocampus–a region of the brain tied to memory and learning.
Older people with vision loss are significantly more likely to suffer mild cognitive impairment, which can be a precursor to dementia, according to a new study published in the journal Ageing Clinical and Experimental Research.
A top-level international research team including researchers from the University of Eastern Finland has developed a new algorithm for the diagnostics of dementia. The algorithm is based on blood and cerebrospinal fluid biomarker measurements. These biomarkers can be used to aid setting of an exact diagnosis already in the early phases of dementia.
Mantis shrimp pack one of the most powerful punches on the planet, splitting water with their explosive blows, but when do their larvae begin letting fly with their ballistic appendages and how fast? The 4.2mm long larvae begin flicking their limbs as early as 9 days after hatching, around when they begin feeding, letting lose accelerations of 22 million deg/s2 and moving at ~0.385m/s, 5-10 times
The discovery of ancient kumara pits just north of Dunedin dating back to the 15th century have shone a light on how scientific evidence can complement mātauranga Maori around how and where the taonga were stored hundreds of years ago.
Primary care practitioners often over-estimate the likelihood of a patient having a medical condition based on reported symptoms and laboratory test results. Such overestimations can lead to overdiagnosis and overtreatment, according to a recent study conducted by researchers at the University of Maryland School of Medicine (UMSOM) published in JAMA Internal Medicine.
A new experimental system shows exposure of SARS-CoV-2 to a very high temperature, even if applied for less than a second, can be sufficient to neutralize the virus so that it can no longer infect another human host. Applying heat to neutralize COVID-19 has been demonstrated before, but in previous studies researchers applied temperatures from one to 20 minutes. This length of time is not a pract
Your brain perceives and processes non-alarming screams more efficiently than their alarming counterparts, researchers report. Screaming can save lives. Non-human primates and other mammalian species frequently use scream-like calls when embroiled in social conflicts or to signal the presence of predators and other threats. While humans also scream to signal danger or communicate aggression, they
30 million children worldwide suffer from moderate acute malnutrition. Lifelong problems from undernourishment include increased risks of diabetes and heart problems. New research shows that targeting the microbiome could help malnourished children grow up healthy. According to the United Nations Food and Agriculture Organization, an estimated 815 million people — nearly 11 percent of the global
PLUS. Forskere viser, hvor let det er at manipulere med satellitbilleder med nye AI-værktøjer, som vi ellers bedst kender fra ansigtsmanipulation. Danmarks geografi er dog så gennemfotograferet, at det bliver svært at manipulere herhjemme.
Research indicates that “deepfake geography,” or realistic but fake images of real places, could become a growing problem. For example, a fire in Central Park seems to appear as a smoke plume and a line of flames in a satellite image. In another, colorful lights on Diwali night in India, seen from space, seem to show widespread fireworks activity. Both images exemplify what the new study calls “l
New research shows that the human hormone oxytocin is one and the same gene across all major vertebrate lineages. The similarities are so striking that scientists advocate for cleaning up the jargon by applying new standard nomenclature for the hormones known as oxytocin and vasopressin in humans, as well as their respective receptors. Constantina Theofanopoulou, coauthor of the study in Nature ,
På den nya karttjänsten Google Earth Timelapse snabbspolas nästan 40 år av utvecklingen på olika platser. Färdiga exempel visar bland annat en smältande glaciär i Alaska, hur Dubai växer fram ur öknen och hur Aralsjön torkar ut. Med hjälp av sökrutan går det även att se hur en valfri plats förändrats.
Nature, Published online: 28 April 2021; doi:10.1038/d41586-021-01163-z The official numbers might not reflect the true COVID death toll in India. Plus, the cellular clocks that help explain why elephants are bigger than mice, and how we might talk to animals.
If you’ve been lucky enough to spend the pandemic with a furry family member, you know just how much they keep you sane and smiling. There’s truly nothing better than an animal companion to help you weather the terrible storm that was 2020. So why not show your cat or dog just how much you care about their companionship by treating them to comprehensive pet insurance? It may sound odd, but it may
Selv om hovedpine er en af verdens mest almindelige og samfundsbelastende sygdomme, er området genstand for relativt lidt forskningsmæssig opmærksomhed. Men en dedikeret forskerflok i Danmark har taget opgaven på sig og har placeret sig solidt i den globale elite.
KULTURKANYLEN Læge og afgående koncerndirektør for Region Sjælland Leif Panduro Jensen er aldeles betaget af livet under vand, og hvis han kunne vælge ét kirurgisk indgreb, ville han have lavet gæller. På landjorden går han efter kulturelle oplevelser, der perspektiverer livet som menneske
Nature, Published online: 29 April 2021; doi:10.1038/d41586-021-00985-1 Many scientist couples move abroad together, but Gidiane Scaratti and Rafael Kenji Nishihora chose to live and work in different countries. This is what they learnt.
Find et smalt forskningsfelt, få et hurtigt gennembrud og gerne med medvind fra den teknologiske udvikling, plej din indre politiker, ansæt de rigtige folk, knokl i årevis, slug et hav af skuffelser, og håb så på en smule held. Sådan lyder opskriften på international succes, hvis man spørger professor Jes Olesen, grundlæggeren af Dansk Hovedpinecenter.
På et overset område har centrets forskere skabt konkrete resultater og skubbet selve forskningen fremad på globalt plan. Sådan lyder vurderingen fra Niels-Henrik von Holstein-Rathlou, der har ansvaret for Novo Nordisk Fondens bevillinger til sundhedsvidenskabelig forskning.
Konsekvensen af et fagligt ønske om mere præcis diagnostik af prostatakræft og om at reducere overdiagnosticering af mindre betydningsfulde tumorer betyder, at diagnostikken af prostatakræft i disse år gennemgår en stor omlægning. Men scannings- og uddannelseskapaciteten i det offentlige sygehusvæsen har svært ved at følge med udviklingen.
Ett bra antiviralt medel kan stoppa en pandemi långt innan ett vaccin utvecklats, menar virusforskarna. Tusentals ämnen testas nu på virus från den första svenska coronapatienten – för att hitta medicin mot corona. Kristina Nyström, medicinsk mikrobiolog vid Sahlgrenska akademin, är i ständig närkontakt med coronavirus. Sedan april 2020 går hon regelbundet in i sitt labb via en luftsluss, med sky
Eye contact plays a fundamental role in human communication and relationships. When we look into each other's eyes, we show that we are paying attention to each other. However, we do not only look at each other but also at our four-legged companions. According to new research by Hungarian ethologists, at least four independent traits affect dogs' ability to establish eye contact with humans. Short
Healthy lifestyle changes are the recommended treatment for people with stage 1 high blood pressure (130-139/80-89 mm Hg).If lifestyle changes alone are not successful to lower blood pressure within six months, a new American Heart Association scientific statement suggests continuing those healthy habits and to consider adding blood pressure-lowering medication.
Nature Communications, Published online: 29 April 2021; doi:10.1038/s41467-021-22671-6 Karyotyping of cancer genomes at the base-level is technically challenging. Here, the authors introduce InfoGenomeR, an algorithm that can infer cancer genome karyotypes from whole-genome sequencing data, and test their model on breast, ovarian and brain cancer samples; and identify private and shared mutations
Nature Communications, Published online: 29 April 2021; doi:10.1038/s41467-021-22551-z Diarrhoea is a major cause of morbidity and mortality in China. Here, the authors present results from a large sentinel surveillance scheme from 217 hospitals in all 31 provinces in mainland China, including ~150,000 patients with acute diarrhoea and covering years 2009-2018.
Nature Communications, Published online: 29 April 2021; doi:10.1038/s41467-021-22769-x Nulling interferometry is a technique combining lights from different telescopes or apertures to observe weak sources nearby bright ones. The authors report the first nulling interferometer implemented in a photonic chip doing spectrally dispersed nulling on several baselines, simultaneously.
Nature Communications, Published online: 29 April 2021; doi:10.1038/s41467-021-22729-5 Zika virus can be sexually transmitted. Here, Pletnev et al. show in an immunocompromised mouse model that the epithelial cells of the epididymis, rather than cells of the testis, vas deferens, prostate, or seminal vesicles, are the most likely source of male-to-female sexually transmitted ZIKV genomes.
Nature Communications, Published online: 29 April 2021; doi:10.1038/s41467-021-22364-0 The implementation of memory-augmented neural networks using conventional computer architectures is challenging due to a large number of read and write operations. Here, Karunaratne, Schmuck et al. propose an architecture that enables analog in-memory computing on high-dimensional vectors at accuracy matching 3
Nature Communications, Published online: 29 April 2021; doi:10.1038/s41467-021-22765-1 It is thought that polyphenols inhibit organic matter decomposition in soils devoid of oxygen. Here the authors use metabolomics and genome-resolved metaproteomics to provide experimental evidence of polyphenol biodegradation and maintained soil microbial community metabolism despite anoxia.
A new study reveals a two-step mechanism behind silver’s dissipation from gold-silver nanoparticles. The discovery could help fine-tune nanoparticle alloys for specific uses. Gold-silver alloys are useful catalysts that degrade environmental pollutants, facilitate the production of plastics and chemicals, and kill bacteria on surfaces, among other applications. In nanoparticle form, these alloys
Problemer med relevante beskrivelser af patientpopulationerne i de nationale kliniske databaser gør det vanskeligt – og til tider meningsløst – at sammenligne kvaliteten på forskellige hospitaler inden for flere standarder.
Immun-checkpointhæmmere øger risikoen for betændelse i hjertet, hjerteinsufficiens, hjerterytmeforstyrrelser og blodpropper hos patienter med lungekræft og modermærkekræft. Resultatet er dog ikke overraskende, siger professor og læge.
Listen and subscribe: Apple Podcasts | Spotify | Stitcher | Google Podcasts One night in the spring of 2005, Anissa Jordan was sitting in a car in San Francisco while her boyfriend attempted to rob a young man nearby. Shortly after, police arrested both Anissa and her boyfriend. Anissa was detained and dressed in an orange jumpsuit before she learned that the young man had been shot and killed th
Danmark har de senere år forfulgt en strategi for implementering af PRO, der bedst kan betegnes som ‘mål én gang – anvend til alle områder’. Det har vist sig at være en hæmsko for integration af PRO i de kliniske kvalitetsdatabaser.
Att inte kunna bli förälder är ofta en stor sorg för människor med barnlängtan. Provrörsbefruktning hjälper många att bilda familj, men inte alla. Nya tekniker utvecklas – som kanske kan innebära slutet för ofrivillig barnlöshet.
Hvorfor finder universiteter, arbejdspladser og fagorganisationer det irrelevant for læger at kunne videreformidle deres viden i politiske og administrative fora og derigennem påvirke beslutningsprocesser?
Att ha mindre pengar eller inte kunna delta i aktiviteter som kostar pengar är kopplat till en ökad risk för en sämre social situation i skolan. Det visar en avhandling från Stockholms universitet. – Jag ser ett samband mellan barnens ekonomiska resurser och de sociala relationerna i skolklassen i min forskning. Störst risk för att ha sämre sociala relationer finner jag för de elever som ofta mis
The last big thing that brought us to a new age I believe was the advancement of cellular technology when smartphones became invented and popularized. Your phone connects everyone together in real time and has all of mankind's knowledge in the palm of your hand. submitted by /u/samiam41297 [link] [comments]
New York nurses caring for COVID-19 patients during the first wave of the pandemic experienced anxiety, depression, and illness–but steps their hospitals took to protect them and support from their coworkers helped buffer against the stressful conditions, according to a study led by researchers at NYU Rory Meyers College of Nursing.
The Korea Institute of Civil Engineering and Building Technology (KICT) has announced the development of an effective structural monitoring technique to monitor massive infrastructures, such as long-span bridge. The method provides accurate and precise responses over whole structural system densely by fusing advantages of multi-fidelity data.
Less than one percent of people in the United States use kratom, a plant-based substance commonly used to manage pain and opioid withdrawal, according to a study published in the American Journal of Preventive Medicine. However, the use of kratom–which is legal but carries the risk of addiction and harmful side effects–is more prevalent among people who use other drugs, particularly those with o
Over her career, first as a forester and then as a professor of forest ecology, Suzanne Simard has been uncovering the hidden fungal networks that connect trees and allow them to send signals and share resources. Speaking to Suzanne about her new book, Finding the Mother Tree, Linda Geddes discovers how these underground webs allow plants to cooperate and communicate with each other. Help support
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.