Decades after Dr. Oz pioneered "integrating" quackery into medicine and after many years of promoting diet scams and quackery on a nationally syndicated daily television show, Columbia University appears finally to have had enough and has quietly downgraded his status. What took so long? The post first appeared on Science-Based Medicine .
In a new paper published today in a special issue of Philosophical Transactions of The Royal Society, Kew scientists and partners report on how bees activate the "medicinal" properties of various nectars to protect themselves from parasite infections.
In the time since the first exoplanet was discovered in 1992, astronomers have detected more than 5,000 planets orbiting other stars. But when astronomers detect a new exoplanet, we don't learn a lot about it: We know that it exists and a few features about it, but the rest is a mystery.
Elon Musk, in his effort to buy Twitter , signaled that under his ownership, the company would allow all speech that the First Amendment protects. "By 'free speech,' I simply mean that which matches the law," he tweeted on April 26 . "I am against censorship that goes far beyond the law." Many commentators were quick to point out that, as a private company, Twitter is not required to follow the F
Simon Says Warren Buffett is one of the world's wealthiest people and the CEO of Berkshire Hathaway, one of the largest and richest holding companies in the world. You'd think his financial advice would resonate with a lot folks, but his latest remarks on cryptocurrency aren't likely to inspire much love among its fans . A new CNBC interview published Saturday painted Warren as solidly anti-Bitco
Is it possible to predict which consumers are in the risk zone for being misled by individuals who promote "financial bullshit"? Yes, according to researchers at Linköping University (LiU). And the answer is: young men with relatively high incomes who overestimate their financial expertise.
We live in a world made and run by RNA, the equally important sibling of the genetic molecule DNA. In fact, evolutionary biologists hypothesize that RNA existed and self-replicated even before the appearance of DNA and the proteins encoded by it. Fast forward to modern day humans: science has revealed that less than 3% of the human genome is transcribed into messenger RNA (mRNA) molecules that in
The physics of the microrealm involves two famous and bizarre concepts: The first is that prior to observation, it is impossible to know with certainty the outcome of a measurement on a particle; rather the particle exists in a "superposition" encompassing multiple mutually exclusive states. So a particle can be in two or more places at the same time, and you can only calculate the probability of
Spatiotemporal regulation of multistep enzyme reactions through compartmentalization is essential in studies that mimic natural systems such as cells and organelles. Until now, scientists have used liposomes, vesicles, or polymersomes to physically separate the different enzymes in compartments, which function as "artificial organelles." But now, a team led by Director KIM Kimoon at the Center for
A team of researchers working at the University of Chicago has found a way to use sound waves to model a system for rotational dynamics of inertial many-particle clustering. In their paper published in the journal Physical Review Letters, the group describes the model they created and possible uses for it.
Sign up for Derek's newsletter here . The drama in Florida between Governor Ron DeSantis and the Walt Disney Company has taken so many unusual turns in so little time that providing a truly straightforward account of what's transpired is not easy. But here is the simplest summary I can give. Florida passed a law: Florida introduced House Bill 1557—a.k.a. the Parental Rights in Education Act, or t
Breakthrough could improve diagnosis and lead to development of treatment for condition that has baffled doctors for two years Follow our Australia news live blog for the latest updates Download the free Guardian app ; get our morning email briefing In the first months after Covid emerged, doctors were baffled by rare and severe responses to the virus in some children , whose symptoms included lu
Elijah McCoy, the revolutionary Black inventor who was born 178 years ago today, came up with an idea for an automatic lubricator that kept engines oiled while they ran. (Image credit: Google/Screenshot by NPR)
Moon Mounties The Canadian government has snuck a Criminal Code amendment into its 2022 federal budget making it a crime to commit illegal acts in outer space, Canadian newspaper The National Post reports . Unsurprisingly, the sneaky amendment mostly refers to Canadian astronauts. "A Canadian crew member who, during a space flight, commits an act or omission outside Canada that if committed in Ca
For nearly two centuries, all kinds of researchers interested in how fluids flow have turned to the Navier-Stokes equations. But mathematicians still harbor basic questions about them. Foremost among them: How well do the equations adhere to reality? A new paper set to appear in the Annals of Mathematics has chipped away at that question, proving that a once-promising class of solutions can… So
Supply and Demand Funny, you'd think buyers would be at least a little skeptical of sinking thousands into an asset class a hacker stole millions worth of in a scam literally just last week — but then, little seems to make sense in the NFT community these days. Despite last week's news that hackers stole at least $13.7 million worth of Bored Ape Yacht Club NFTs, interest was so high in the latest
Ground Breakers The Event Horizon Telescope (EHT) project, which brought us the first-ever image of a black hole back in 2019, is back for its latest announcement this month — and they're promising something "groundbreaking," including "extensive supporting audiovisual material." Chances are that the presentation, scheduled for May 12, could give us tantalizing new insights into Sagittarius A*, t
Vaccinated people from about 60 visa-waiver countries now able to enter as part of pandemic reopening plan Coronavirus – latest updates Māori songs, tearful embraces and a beloved New Zealand chocolate bar awaited international visitors arriving in New Zealand on Monday – the first foreign guests, other than Australians, to set foot in Aotearoa in more than two years. Since March 2020, the arriva
If you're online, you've probably heard jokes about Toxoplasma gondii , a parasite that humans can catch from cat feces. That's because there's some evidence — though it's controversial — that the parasite can cause psychological issues in humans , or even spur them to love cats more . Regardless, though, it makes a great metaphor. For many, toxoplasmosis has become shorthand for the madness of b
When news broke earlier this year that the modest but attractive house on Long Island known as Geller I was going to be demolished, the outcry was immediate. The home's significance in architectural history was beyond question. Its designer, Marcel Breuer, was among the most acclaimed of the mid-20th-century modernists and one of the few whose name is familiar to those with only a passing interes
Russian space chief Dmitry Rogozin may have it out for his own space agency. He was demoted from being Russia's deputy prime minister to lead Roscosmos in 2018 — and has since brought a very different tune to the country's space efforts. "He never wanted this job," an anonymous NASA source told Ars Technica 's Eric Berger . "He was essentially demoted, and he has spent his time at Roscosmos tryin
Using the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST), astronomers have investigated a binary star known as TYC 2990-127-1. Results of the study suggest that this object is an Algol-type double-lined spectroscopic binary system. The finding is reported in a paper published April 22 on arXiv.org.
This is an edition of Up for Debate, a newsletter by Conor Friedersdorf. On Wednesdays, he rounds up timely conversations and solicits reader responses to one thought-provoking question. Soon after, he publishes some thoughtful replies. Sign up for the newsletter here. Last week, I asked , "What should be forbidden on Twitter?" You responded with many recommendations for the social-media platform
The coronavirus pandemic has challenged one of the most basic structures of life for the past two centuries: the separation between home and workplace. Over the past two years, many of us have been confined to domestic spaces that were historically constructed with the assumption that women would take care of children and maintain the household rather than work outside it. These expectations have
I f Democratic strategists could engineer a candidate to test their approach to statewide campaigns in Ohio, the lab might pop out something very close to Tim Ryan. A high-school quarterback who grew up among the Irish and Italian working class in Appalachia's Mahoning Valley, Ryan can mix comfortably with the kinds of small-town voters who are fleeing his party. Now in his 10th term in Congress,
Smash this perplexing ping pong poser UPDATE: To read the solution click here Today's puzzle appeared in last year's British Mathematical Olympiad (BMO), a competition taken by almost 2,000 school pupils in the UK. The BMO is the top national maths contest for pre-university students, and is part of the selection process for the British team at the International Mathematical Olympiad and the Euro
An international team of researchers led by Professor Min Seok Jang of KAIST and Professor Victor W. Brar of the University of Wisconsin-Madison has demonstrated a widely applicable methodology enabling a full 360° active phase modulation for metasurfaces while maintaining significant levels of uniform light amplitude. This strategy can be fundamentally applied to any spectral region with any stru
Lip Spiders As if the metaverse wasn't terrifying enough already . We already knew about a new device built by scientists at Carnegie Mellon University to create sensations on your lips during VR. Initial reports focused on its potential for simulating the experience of kissing for VR lonely hearts, but in a new interview with the Daily Beast , one of the creators of the gadget says that it'd be
In a warmer world, rising sea levels could render many coastlines, beaches, and reef islands uninhabitable, or destroy them altogether. The 1.09℃ Earth has warmed since pre-industrial times has already heightened seas by 20 centimeters.
Scattered across our Milky Way galaxy are tens of millions of black holes—immensely strong gravitational wells of spacetime, from which infalling matter, and even light, can never escape. Black holes are dark by definition, except on the rare occasions when they feed. As a black hole pulls in gas and dust from an orbiting star, it can give off spectacular bursts of X-ray light that bounce and echo
Sign up for Caleb's newsletter here. Virtual communication created a whole new way of speaking with one another: writing a back-and-forth conversation, via text message, often in real time. This is disembodied and dislocated speech—a text bubble without a comic-book character, because the comic-book character … is you (gasp). New ways of communication call for new vocabulary, lexical caulk to fil
Research shows that businesses, governments, and consumers around the world are increasingly concerned about the environment. But despite our apparent concern, we seem to be doing very little about it. Per a recent report, material extraction and use has nearly quadrupled in the last 50 years , outpacing even population growth. The current economy is built on a linear approach where organizations
To combat global poverty, social programs that not only provide cash to families—but also address psychological and social obstacles to seizing economic opportunities—can have a beneficial impact on people's lives, according to new research from Northwestern University economists.
In a trial of (PRT), 2/3 of patients with chronic low back pain reported significant pain relief with psychotherapy that helped them reconceptualize the pain as nondangerous. Impressive if true, but flaws in research design make the study untrustworthy. The post Pain Reprocessing Therapy first appeared on Science-Based Medicine .
With the extinction of large, non-flying dinosaurs 66 million years ago, large herbivores were missing on Earth for the subsequent 25 million years. Since plants and herbivorous animals influence each other, the question arises whether, and how this very long absence and the later return of the so-called "megaherbivores" affected the evolution of the plant world.
On a recent Thursday night in America, April 21, two different states planned to preside over the execution of two different men—Oscar Franklin Smith, 72, in Tennessee; and Carl Wayne Buntion, 78, in Texas—and yet, for similar reasons, neither plan went off precisely as expected. Smith, who was sentenced to death in 1990 for the brutal slaying of his estranged wife and her two teenage sons, was m
A wafer-thin crescent moon will have Aldebaran and the inner planet for company Close out the UK bank holiday with an absolutely delightful sight this evening. Around 21.00 BST, a wafer-thin crescent moon will hang between the star Aldebaran and the planet Mercury. Begin your search as twilight begins to fall, and look low towards the western horizon. By 9pm, you should be able to see the three c
The Muslim festival of Eid al-Fitr, which marks the end of the month of Ramadan, began this week in parts of the world where sightings of the new moon were made. During Ramadan, devout Muslims abstain from food, drink, and sex from dawn until sunset. The fast, one of the five pillars of Islam, is seen as a time for spiritual reflection, prayers, and charity. Collected below are images of Muslims
When bacteria interact with other organisms, a myriad of bacterial natural products are involved. In most cases, it is not possible to trace which bacterial strain produces which natural substance and what properties it has. And thus products such as colibactin from human intestinal bacteria involved in cancer development remain the exception rather than the rule.
The blue whale is the largest animal that has ever existed, weighing as much as two thousand people together. This is why this cetacean was the most chased species in the world due to its size and economic yield when whaling started, around the mid-19th century. The first captures, in northern Norway, expanded to other marine areas, and in only a few decades, in the North Atlantic, more than 15,00
When faced with conditions that are too dry, salty, or cold, most plants try to conserve resources. They send out fewer leaves and roots and close up their pores to hold in water. If circumstances don't improve, they eventually die.
A forest's ability to regenerate after devastating wildfires, droughts or other disturbances depends largely on seed production. Findings from two new studies led by Duke University researchers could boost recovery and replanting after these disasters by providing foresters with new guidance on which trees species produce more seeds and how their productivity can vary from location to location.
Whether we're rushing a child to the emergency room after a fall or making chicken soup for a feverish spouse, love inspires us to act when a family member gets sick. Global health activists Edith Elliott and Shahed Alam believe we can harness this power to create better health outcomes for everyone. Learn how their organization Noora Health works with doctors and nurses in India and Bangladesh to
A safe space to save money is life-changing — especially for the 60 million smallholder farmers in West Africa (the majority being women) who often live on less than two dollars a day. Poverty fighter Anushka Ratnayake introduces her non-profit myAgro, which offers farmers a place to save small amounts of money and allows them to access those funds as they need them. Over the next five years, myA
Russian troops destroyed and stole equipment used to monitor radiation levels at Chernobyl, requiring the creation of a new sensor network that could involve drones and robots to avoid landmines in the area
In Latin American countries like El Salvador, where local changemaker Celina de Sola lives, homicide rates are alarmingly high due to a vicious cycle of violence where people don't have an opportunity to heal from individual and collective trauma. With her team at Glasswing International, de Sola is hoping to break this cycle by equipping government employees like teachers and police officers with
Millions of monarch butterflies migrate each fall to a specific cluster of mountain peaks in central Mexico. How exactly they navigate to their winter home, and the way they choose their path, is a topic of great interest to scientists—especially as climate change redirects their chosen path.
Scientists have developed a low-cost microscopic imaging device small enough to fit on a smartphone camera lens, with the potential to make mobile medical diagnosis of diseases affordable and accessible.
New research in mice raises the prospects for development of post-concussion therapies that could ward off cognitive decline and depression, two common conditions among people who have experienced a moderate traumatic brain injury.
Scientists reveal that different corals and environments influence the likelihood of their survival when ocean temperatures rise. The findings also demonstrate that advanced remote sensing technologies provide an opportunity to scale-up reef monitoring like never before.
A new study describes a period of rapid global climate change in an ice-capped world much like the present — but 304 million years ago. Within about 300,000 years, atmospheric carbon dioxide levels doubled, oceans became anoxic, and biodiversity dropped on land and at sea.
Scientists rely increasingly on models trained with machine learning to provide solutions to complex problems. But how do we know the solutions are trustworthy when the complex algorithms the models use are not easily interrogated or able to explain their decisions to humans?
An international research team, including scientists at Australia's national science agency, CSIRO, has used a new observation technique to discover the brightest extragalactic pulsar known, and it could even be the most luminous one ever found.
A cross-disciplinary University of Illinois at Urbana-Champaign (UIUC) team has demonstrated a major breakthrough in using automated synthesis to discover new molecules for organic electronics applications.
Wake Forest Institute for Regenerative Medicine (WFIRM) scientists working on CRISPR/Cas9-mediated gene editing technology have developed a method to increase efficiency of editing while minimizing DNA deletion sizes, a key step toward developing gene editing therapies to treat genetic diseases.
When it was on the ground, the James Webb Space Telescope was the cause of much hand-wringing and debate at NASA. The project encountered numerous setbacks and cost overruns, but it has all paid off in space. After its launch in late 2021 , everything has been coming up roses for Webb. Keeping with the trend, NASA now says the telescope is fully aligned , and its vision is perfect, bringing us on
Today's hoverboards may still be stuck on the ground, but there's still plenty to like about these modern transportation machines. They're capable of reaching speeds of up to 12 miles per hour and come equipped with wheels up to 10 inches in diameter with beefy pneumatic tires capable of taking them off road. Many come equipped with programmable LED lights and built-in Bluetooth speakers. And, wi
Safeguarding native tree diversity through improved conservation and restoration efforts is at a critical juncture in Southeast Asia, as many tree species face threats from habitat loss, fire and climate change, among other human-caused threats. A new study has used a spatially explicit framework to identify species-specific priority areas for conservation and restoration among rosewood species in
Cryptographic systems and information security rely on unpredictable, unmanipulable random bits that are physical in nature. Especially in the context of private key systems that enable unconditional security via "one-time-pad" cryptography, the real-time generation rate of physical random bits critically determines the secure communication rate.
Companies that utilize augmented reality (AR) glasses as a new training and workforce tool to increase worker productivity risk stunting workforce innovation and ingenuity, according to new research findings published in the INFORMS journal Manufacturing & Service Operations Management.
As the world sees rising ocean temperatures, it will also see more cases of coral bleaching. When corals bleach, they become more vulnerable to other stressors such as water pollution. However, many reefs harbor corals that persist despite warming oceans. Unraveling the complex issue of coral bleaching and its impact on their survival or death may be key to conserving coral reefs— ecosystems that
Two-pore channels (TPCs) are ancient ion channels present in the cells of both animals and plants. In animals, including humans, these ion channels play important roles in biological activities in various tissues, such as in the brain and nervous system. All land plant species contain TPC genes; in many higher vascular plants such as Arabidopsis thaliana (Arabidopsis) and Oryza sativa (rice), a si
Converting agroindustrial waste into molecules of interest to society, such as biofuels and biochemicals, is one of the ways to mitigate dependence on oil and other fossil fuels. As one of the world's largest producers of plant biomass, Brazil is well-placed to lead this transition, but lignocellulosic raw materials (containing lignin, hemicellulose and cellulose) are hard to deconstruct, or (more
Climate change is already affecting plants and animals worldwide and is a growing threat to biodiversity, adding a new layer to the existing challenges of habitat loss, invasive species, pollution, and overexploitation.
Public developments on the California coast would be required to capture carbon in wetlands or other natural systems under an Assembly bill that calls for projects to add "blue carbon" measures to their mitigation plans.
Infectious diseases such as malaria remain a leading cause of death in many regions. This is partly because people there don't have access to medical diagnostic tools that can detect these diseases (along with a range of non-infectious diseases) at an early stage, when there is more scope for treatment.
Don Myron is probably best known as the guy who survived one of the deadliest fires in Oregon's history by sheltering overnight in a river with a patio chair. So there was never any question that Myron would rebuild his home in Oregon's Santiam Canyon after the house was destroyed in the Labor Day wildfires of 2020.
Carbon dots (CDs) are a kind of zero-dimensional carbonaceous nanomaterial. Due to their ultra-small size (usually less than 10 nm), simple synthesis, low toxicity, well-documented biocompatibility, and outstanding luminescent properties, CDs have wide applications, particularly in bioimaging and biomedical fields. Until now, efficient blue and green emissions with photoluminescence quantum yield
A Rice University study found "race-blind" automatic admissions policies at Texas' state universities boosted diversity in highly segregated school districts, especially in rural areas of the Lone Star State.
An anti-idling campaign at two Salt Lake County elementary schools was effective in reducing idling time by 38%, and an air monitoring experiment found that air quality around schools can vary over short distances. These findings, published in the journal Atmosphere, can help schools and school districts along the Wasatch Front plan to protect students, staff and the community from idling-related
Compact, CMOS compatible on-chip photon sources have attracted much attention to the scientific community and the semiconductor industry. As the transistor's feature size is continuously scaling down, the integration density and switching speed in integrated electronic circuits increases exponentially. This leads to an increasingly large power dissipation from electrical connections between circui
Cattle burping while chowing on feed in California's San Joaquin Valley generated plumes of a powerful greenhouse gas that have been detected by satellites for the first time, shedding light on how agriculture may be contributing to climate change.
When the winters get warmer in northern Sweden, there is a risk for groundwater level decline, despite heavy precipitation. The villain in this story is lingering ground frost that prevents snow meltwater and rain from filling underground reservoirs. This is the finding of a new thesis from the University of Gothenburg.
Artificial intelligence offers new opportunities to improve university education. This is demonstrated by the Learning Intelligent System (LIS) project, which has been developed by researchers at the Universitat Oberta de Catalunya (UOC) with backing from the eLearning Innovation Center. The system was created by a transdisciplinary research team at the UOC and has already produced excellent resul
Lentils are an important and popular food in many parts of the world. They are also a nutritional powerhouse. This versatile legume is a great source of protein, carbohydrates, and fiber, and high in mineral nutrients and vitamins like iron, zinc, magnesium, potassium, and vitamin B.
The absence of large herbivores after the extinction of the dinosaurs changed the evolution of plants. The 25 million years of large herbivore absence slowed down the evolution of new plant species. Defensive features such as spines regressed and fruit sizes increased. The research has demonstrated this using palm trees as a model system.
Atrial fibrillation, the most common cardiac rhythm abnormality, has been linked to one-third of ischemic strokes, the most common type of stroke. But atrial fibrillation is underdiagnosed, partly because many patients are asymptomatic.
An international team of researchers has demonstrated a widely applicable methodology enabling a full 360° active phase modulation for metasurfaces while maintaining significant levels of uniform light amplitude. This strategy can be fundamentally applied to any spectral region with any structures and resonances that fit the bill.
Study of Campanula americana supports strengthening conservation efforts in glacial refugia areas because of their high genetic diversity. Conservation of those areas in the southern Appalachians and the Gulf Coast has implications for other areas of the country.
Mid-wavelength infrared (MWIR) is a unique regime with various potential applications in fingerprint detections. It is also one of three atmospheric transmission windows that shows significant possibilities in low-light-level night vision and free-space communications. The accurate detection of unknown photons in this band plays an indispensable role in aeronautics and astronautics applications. H
There's an old joke that the dinosaurs are only extinct because they didn't develop a space agency. The implication, of course, is that unlike our reptilian ancestors, we humans might be able to save ourselves from an impending asteroid strike on Earth, given our six-and-a-half decades of spaceflight experience. But the fact is that while we have achieved amazing things since Sputnik kicked off th
Trees are an essential cornerstone in the functioning and survival of forest ecosystems. But as global change accelerates, certain tree populations, too slow to adapt, may experience population decline or even extinction. Conservation and forest management strategies can be implemented to avoid such scenarios, such as moving trees to more compatible climates, known as assisted gene flow, or to thr
Some vitally important European crops like vines and olives are being devastated by disease. Scientists are searching for biological replacements for chemical pesticides to improve crop and human health.
Every plant, animal or other nucleus-containing cell also harbors an array of miniature "organs" that perform essential functions for the cell. In plants, for example, organelles called chloroplasts photosynthesize to generate energy for the organism. Because some organelles contain their own DNA and resemble single-celled organisms, scientists have long theorized that the evolution of complex lif
A team of researchers with the Lester E. Fisher Center for the Study and Conservation of Apes and the Urban Wildlife Institute, Lincoln Park Zoo, has found that two species of great apes tend to look longer at unfamiliar human faces than those of people they know. In their paper published in the journal Proceedings of the Royal Society B, the group describes experiments they conducted with chimpan
Researchers at Oak Ridge National Laboratory have empirically quantified the shifts in routine daytime activities, such as getting a morning coffee or takeaway dinner, following safer at home orders during the early days of the COVID-19 pandemic. These insights, published in the Journal of Transport Geography, could help officials better understand traffic patterns and supplement the response to e
The eastern coast of Antarctica has lost most of the Glenzer and Conger ice shelves. In the process, it gained what is likely an island. If confirmed, the unnamed island would be one in a series of islands exposed in recent years as portions of the floating glacial ice hugging the continent's coast have disintegrated.
Researchers who previously discovered channels in the skull have found that cerebrospinal fluid can exit the brain through these channels to reach the skull's bone marrow, which can detect and respond to infection or injury. Tapping into this process may help investigators study and treat inflammation-related brain conditions.
Seagrasses play an important role in our climate. They are one of the most efficient sinks of carbon dioxide on Earth. A team of scientists now reports that seagrasses release large amounts of sugar, largely in the form of sucrose, into their soils — worldwide more than 1 million tons of sucrose, enough for 32 billion cans of coke. Such high concentrations of sugar are surprising. Normally, micro
Researchers have shown that exposure to endocrine disruptors during pregnancy can lead to medium and long-term health problems for both the mother and the fetus. They conducted an exhaustive review of the literature on more than a dozen of the most common endocrine disruptors (EDs), as well as several whose effects are less well-known.
In a new article, researchers describe the 'longevity diet,' a multi-pillar approach based on studies of various aspects of diet, from food composition and calorie intake to the length and frequency of fasting periods.
The solution to today's puzzle Earlier today I set you this problem from last year's British Mathematical Olympiad (BMO), the UK's top maths competition for pre-university students, which is taken by almost 2,000 teenagers a year. The question was attempted by 90 per cent of the contestants, and about 1 in 3 got full marks. How did you get on? Continue reading…
Television has been a staple of the American household since the 1960s, but a lot has changed since families gathered around the living room set to watch John Kennedy debate Richard Nixon live on stage. The average American home has 2.3 TVs , and only 19 percent of households have just one, according to Nielsen research . It's common to have a TV in the living room, bedroom, guest room, or even k
Today's computers guzzle large amount s of electricity, raising concerns about the climate impact of technology. A breakthrough in superconducting electronics could reduce the power bill significantly, while also making computers far faster. The phenomenon of superconductivity was first discovered in 1911 by Dutch physicist Kamerlingh Onnes , and refers to a state in which electrical current pass
A study of nearly 9,000 children found those who eat a vegetarian diet had similar measures of growth and nutrition compared to children who eat meat. The study also found that children with a vegetarian diet had higher odds of underweight weight status, emphasizing the need for special care when planning the diets of vegetarian kids.
A new study suggests that reducing daily sedentary time can have a positive effect on the risk factors of lifestyle diseases in only three months. Spending just one hour less sitting daily and increasing light physical activity can help in the prevention of these diseases.
When you first break a bone, the body sends out an inflammatory response, and cells begin to form a hematoma around the injured area. Within a week or two, that blood clot is replaced with a soft material called callus that forms a bridge of sorts that holds the fragments together. Over months, the callus hardens into bone, and the healing process is complete. But sometimes, that bridge between th
Researchers from Tokyo Metropolitan University have identified key similarities between the behavior of granular materials and melting gels. They found that falling beds of sand share the same destabilization mechanism as melting gelatin as it is heated from below, particularly how key parameters scale with the thickness of the fluidized region. Their findings, published in Scientific Reports, pro
Movement along faults in Earth's crust can be sudden and jarring, as felt during an earthquake, or it can occur more gradually over thousands of years. Any kind of movement along a fault might affect the stresses and other factors that contribute to subsequent movements.
LGBT+ physicists often face harassment and other behaviors that make them leave the profession, according to a new study, which comes as physics as a discipline has attempted to grapple with equity and inclusion issues.
They're the non-stick on Teflon cookware, the stain resistance in Scotchgard, and the suppression factor in firefighting foam, but while the staying power of PFAS chemicals was once revered, it's now infamous as PFAS substances continue to infiltrate the environment and affect human health.
Nedskæringerne på det karkirurgiske område i Region Midtjylland har ikke noget med regionens nye møgsag om for mange amputationer at gøre, siger regionsrådsformand Anders Kühnau (S). Han forklarer, at besparelserne i 2019 ramte et vagtlag i Viborg, som slet ikke udførte de forebyggende behandlinger.
A new way for people to receive tactile feedback in virtual reality uses the lips. Lips, together with the gums and tongue, are second only to the fingertips in nerve density. The new system uses airborne ultrasound waves to create sensations on the lips, teeth, and tongue, and is small and light enough to attach to the bottom of virtual reality (VR) goggles . Imagine a VR world that has a drinki
Two-pore ion channels are present in many eukaryotes — both animals and plants. While the possible involvement of these channels in environmental stress responses have been discussed in higher plants, their localizations and functional significance remain largely unknown. Now, researchers have found the missing pieces of evolutionary history of two-pore channels in a species of liverwort.
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Hybrid learning, where children alternate days learning at home and days in school, offers a significant reduction in the spread of COVID-19, a new study shows. However, total closure in favor of remote learning offers little additional advantage over the hybrid option. The study helps quantify the effectiveness of one of the most commonly-debated mitigation measures taken across the country as c
Black Twitter, a subset of the platform distinguished by its hashtag, has been supporting and driving causes in the U.S.—including the Black Lives Matter movement—for more than a decade. But the future of the online community is in doubt now that Elon Musk has bought Twitter, says Meredith Clark, an associate professor and founding director of the Center for Communication, Media Innovation and Soc
In 1996, Joseph W. Ashy, former U.S. commander-in-chief of the North American Aerospace Defense Command, famously said: "We're going to fight in space. We're going to fight from space and we're going to fight into space."
Listeriosis is a zoonotic disease of food origin that can cause, both in the human species and in animals, symptoms of gastroenteritis, meningitis, bacteremia and miscarriages. The pathogen that causes this infection is the Listeria bacteria. Juan José Quereda, researcher with a Ramón y Cajal contract and professor at the CEU Cardenal Herrera University (CEU UCH), where he leads the research group
The term "high-maintenance" is part of everyday speech, and usually refers to a woman who places a high value on her personal image, wants or needs. Often uttered within the context of dating, the implication is the woman in question is too much hard work; an easier, more relatable mate would be preferred.
Researchers have discovered a previously unknown function performed by cells called astrocytes, which comprise nearly half of all cells in the brain. The discovery in mice of a new function for astrocytes opens a new direction for neuroscience research that might one day lead to treatments for disorders such as epilepsy, Alzheimer's, and traumatic brain injury, scientists say. It comes down to ho
Digital public servant Amanda Renteria has seen that the millions of people who rely on government welfare services are often discouraged from seeking them out, frustrated and discouraged by long lines and unnecessarily complicated processes. At Code for America, Renteria is helping develop human-centered technology that "respects you from the start, meets you where you are and provides an easy, p
Election infrastructure in the United States is crumbling, says technologist Tiana Epps-Johnson, and, even worse, election officials are increasingly being attacked simply for doing their jobs. How can the country rebuild trust in its local and national elections? Epps-Johnson describes how the US Alliance for Election Excellence, a nonpartisan collaborative of election officials, technologists, d
What will happen to the planet if climate change melts what's left of Arctic permafrost? Shedding light on this overlooked threat, Arctic geologist Sue Natali reveals the true danger of heating up the iciest place on the planet: the release of ancient carbon that will dramatically worsen our climate problems. In this urgent talk, she introduces a new initiative, Permafrost Pathways, and their work
Indigenous communities have looked after their ancestral forests for millennia, cultivating immense amounts of knowledge on how to protect, nourish and heal these vital environments. Today, 470 million Indigenous people care for and manage 80 percent of the world's biodiversity — yet their legal rights to these lands are inexplicit and subject to exploitation by illegal loggers, miners and compan
"Human migration is both inevitable and growing. What are we as a global community doing to address it?" asks human rights lawyer Becca Heller, who believes that every refugee and migrant deserves a safe pathway to resettlement. Through her work with the International Refugee Assistance Project (IRAP), Heller is showing how the power of the law can help displaced people find homes. By providing ac
According to the WHO , one third of the people in the world lack access to safe drinking water. They report that, "Globally, at least 2 billion people use a drinking water source contaminated with faeces." Some locations (like the island of Bermuda) lack any supply of fresh water, and depend largely on rainwater. While a lot of progress has been made over the last few decades, this remains a huge
A researcher who guest edited an issue has lost two papers after a journal's publisher discovered that he had changed his name on the manuscripts following submission. The retraction notices in Computers in Industry, an Elsevier title, for "Evaluation of the green supply chain management practices: A novel neutrosophic approach" and "An integrated neutrosophic ANP … Continue reading
Scientific Reports, Published online: 02 May 2022; doi:10.1038/s41598-022-11307-4 Seed priming with selenium and zinc nanoparticles modifies germination, growth, and yield of direct-seeded rice ( Oryza sativa L.)
Many sanitation workers in India must wear GPS trackers, and some say taking off the device incurs a fine of half a day's salary, around $4. Workers also have to take the devices home, and worry about privacy leaks and the inability to turn off the trackers and cameras — even when they are in the bathroom.
Nature Communications, Published online: 02 May 2022; doi:10.1038/s41467-022-30059-3 In this retrospective cohort study, Islam et al. estimate the effectiveness of two mRNA-based COVID-19 vaccines in over 3.5 million fully vaccinated individuals and find no differences in vaccine effectiveness for protection against hospitalization, ICU admission, or death/hospice transfer.
Nature Communications, Published online: 02 May 2022; doi:10.1038/s41467-022-30085-1 Memory effect is seldom found in ferroic domains after reversible phase transformations. Here, the authors develop a pair of single-component organic enantiomorphic multiferroic crystals with erasable ferroelectric and ferroelastic domains.
Nature Communications, Published online: 02 May 2022; doi:10.1038/s41467-022-30077-1 Quantum memories usually suffer from a trade-off between efficiency and excess noise. Here, by exploiting the time-reversal approach for improving modes matching, the authors show a warm-atomic-cell-based cavity-enhanced memory with 67% efficiency and noise level close to quantum noise limit.
Nature Communications, Published online: 02 May 2022; doi:10.1038/s41467-022-30042-y Integrated kinetic and structural investigations reveal that the ubiquitous co-chaperonin prefoldin interacts with its coiled-coil helices on the islet amyloid polypeptide fibril surface and fibril ends to inhibit fibril elongation and secondary nucleation.
Nature Communications, Published online: 02 May 2022; doi:10.1038/s41467-022-29985-z Derivatization of azaarenes can create molecules of biological importance, but reductive functionalization of weakly reactive azaarenes remains a challenge. Here the authors show a dearomative, diastereoselective annulation of azaarenes, via ruthenium(II) reductive catalysis.
Nature Communications, Published online: 02 May 2022; doi:10.1038/s41467-022-30120-1 Myofiber atrophy occurs in many diseases but the mechanisms responsible for myofiber size determination are incompletely understood. Here, the authors show that the muscle-secreted factor Fibcd1 is necessary to maintain myofiber size and mitigates myofiber atrophy induced by cancer cachexia
Nature Communications, Published online: 02 May 2022; doi:10.1038/s41467-022-29764-w A non-orientable surface can mirror reflecting the man travelling on it. Realizing such topological object is fascinating. Here, the authors discover that antiferromagnetic-induced polarization in a solid can realize a non-orientable Roman surface.
Nature Communications, Published online: 02 May 2022; doi:10.1038/s41467-022-29950-w While most broadly neutralizing antibodies (bnAb) against Influenza virus target conserved conformational epitopes of the glycoprotein hemagglutinin (HA), Sun et al. characterize a lineage of bnAbs that neutralize group 1 and 2 strains. Structural characterization shows that antibody 28-12 binds a continuous epit
It's surprisingly hard to pin down exactly how Apple's M1 compares to Intel's x86 processors. While the chip family has been widely reviewed in a number of common consumer applications, inevitable differences between macOS and Windows, the impact of emulation, and varying degrees of optimization between x86 and M1 all make precise measurement more difficult. An interesting new benchmark result an
For decades, bent pins have been one of the realities of buying, installing, and swapping CPUs, especially if you've stuck with AMD chips after Intel moved to LGA processors back in 2004. While there are undoubtedly a few lucky individuals blessed with steady hands, fast reflexes, and a merciful lack of pets known to walk across a table with less than perfect regard for its contents, the majority
Under the Mediterranean waters off Tunisia, gently waving green seagrass meadows provide vital marine habitats for the fishing fleets and an erosion buffer for the beaches the tourism industry depends on.
What's better than some Cranky Uncle cartoons scattered around here or there? A collection of them, cross-referenced with the fallacies they depict, of course! And this is what we highlight in this blog post. John Cook had made these cartoons available for download on his Cranky Uncle website in March 2021 and Dutch and German versions were published when the translated Cranky Uncle game was laun
Kan nya sätt att leverera cytostatika mer precist till tumören minska risken för biverkningar? Det studerar en forskargrupp vid Lunds universitet och de utgår från tumörsjukdomen osteosarkom. I två vetenskapliga artiklar beskriver man ett sätt att med hjälp av cytostatikaladdade mikro- och nanopartiklar leverera läkemedel in i cancerceller, frisätta cytostatikan och därigenom orsaka celldöd hos tu
New techniques have shown that people reached the New World far earlier than the long-standing estimate of 13,000 years ago, but scientists still debate exactly when humans arrived on the continent—and how.
Studie med dansk deltagelse viser, at tranexamsyre ikke alene reducerer risikoen for alvorlig blødning og behovet for transfusioner, men også at midlet ikke øger risikoen for kardiovaskulære komplikationer signifikant.
Diverse lines of evidence point to humans' presence in the New World long before the dawn of Clovis culture. But rewriting this chapter of human history raises many questions about how these early people came to inhabit these continents.
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.