Researchers from the California Department of Fish and Wildlife's Wildlife Investigations Laboratory present their results from a toxicological investigation into a mortality event involving songbirds in a new publication in Environmental Toxicology and Chemistry.
An international team of researchers involving members of the University of Basel's Biozentrum challenges the conventional understanding of the cause of Parkinson's disease. The researchers have shown that the inclusions in the brain's neurons, characteristic of Parkinson's disease, are comprised of a membranous medley rather than protein fibrils. The recently published study in 'Nature Neuroscien
Russian scientists patent new agent for X-ray. Russian scientists found that nanocrystal tungsten trioxide can be used instead of barium for X-ray examinations and also in cancer treatment. The results of the study are published in «Journal of Nanomaterials».
Marsquakes NASA's InSight Mars lander has been closely listening to the activity inside the core of the Red Planet. And something is stirring deep beneath the surface — earlier this year the rover recorded its first ever marsquake . But what caused it? Michael Manga, a planetary scientist at the University of California at Berkeley, has a new theory as to what may be causing marsquakes. During th
All Hands On Monday, the city council of Sydney, Australia, unanimously voted to enter a state of emergency over the looming threat posed by climate change. The decision — which makes Sydney the first major city in Australia to declare a climate emergency, but nearly the 660th to do so worldwide — mobilizes the entirety of the city's infrastructure to cut back on carbon emissions and try to preve
Researchers have figured out the math that describes how the cochlea, the part of the ear that processes speech, works. The research could help improve hearing tests and devices that restore some hearing to the deaf. Inside the ear, a snail-shaped organ called the cochlea takes in pressure information from the eardrum and turns it into nerve impulses that are sent to the brain. A full understandi
Why Elephants Rarely Get Cancer They have multiple copies of a gene that causes mutated cells to commit suicide. Why Elephants Rarely Get Cancer Video of Why Elephants Rarely Get Cancer Creature Wednesday, June 26, 2019 – 11:15 Nala Rogers, Staff Writer (Inside Science) – "I've always been so enamored with elephants — one of the things that's just amazing to me is that elephants have such an inc
In recent years, Raj Chetty has become economist-famous for cataloguing American inequality, assembling enormous data sets showing which Americans tend to get ahead. More to the point, his work shows where Americans tend to get ahead: Chetty, a Harvard economics professor, has focused on how where one grows up shapes one's economic prospects. Chetty's research demonstrates just how unevenly "upwa
It's hard to understand exactly why Richard Curtis, Britain's prime purveyor of romantic comedies for the last three decades, decided to pivot to speculative science fiction. His talents have long resided in winsome, low-concept narratives of love, sex, and marriage, the quainter the better. He made a name for himself writing movies about going to a bunch of weddings (and a funeral), falling in l
Researchers from the California Department of Fish and Wildlife's Wildlife Investigations Laboratory present their results from a toxicological investigation into a mortality event involving songbirds in a new publication in Environmental Toxicology and Chemistry.
Whether at Oktoberfest, the movie theater or a shopping mall, the enticing aroma of soft pretzels is unmistakable. Now, researchers have identified the key compounds that give these twisted knots their distinctive scent. They report their results in ACS' Journal of Agricultural and Food Chemistry.
Patients with multiple primary melanomas had a higher likelihood of dying than those with a single primary melanoma in a study that used data from registries in the Netherlands. This observational study included nearly 57,000 patients (54,645 with a single primary melanoma and 2,284 with multiple primary melanomas).
Scientists from the Department of Energy's SLAC National Accelerator Laboratory and Stanford University have taken the first images of carbon dioxide molecules within a molecular cage — part of a highly porous nanoparticle known as a MOF, or metal-organic framework, with great potential for separating and storing gases and liquids.
New research published June 26, 2019 in JAMA Surgery and co-led by Temple's Jessica H. Beard, M.D., M.P.H., examines one approach to tackling a shortage of surgeons available to perform inguinal hernia repair in sub-Saharan Africa: training medical doctors to perform the surgery. The research team found no statistically significant differences in hernia recurrence, post-surgery complications, pati
Parkinson's disease can begin in the gut and spread to the brain via the vagus nerve, researchers report June 26 in the journal Neuron. This pathway was observed in a new mouse model, which recapitulates both motor and non-motor deficits as well as early-stage and late-stage features associated with Parkinson's disease.
In experiments in mice, Johns Hopkins Medicine researchers say they have found additional evidence that Parkinson's disease originates among cells in the gut and travels up the body's neurons to the brain. The study, described in the June issue of the journal Neuron, offers a new, more accurate model in which to test treatments that could prevent or halt Parkinson's disease progression.
Johns Hopkins's Ted Dawson discusses his lab's demonstration that misfolded alpha-synuclein can move from the stomach to the brain and cause physical and cognitive symptoms.
Betting on Electric Israeli startup Eviation Aircraft made a big splash at the Paris Air Show last week with a prototype of their $4 million commercial electric airliner, the Alice. The early success of the company — which has already sold a "double digit" number of orders to a U.S. regional airline — could represent a turning point in aviation, drastically cutting both emissions and the cost of
13 mennesker blev udsat for stråling med en radioaktiv isotop, da den skulle fjernes fra et apparat til bestråling af vævsprøver på UW Medicine Harborview Medical Center. Oprydningen står på frem til efteråret.
Asking for help is tough. But to get through life, you have to do it all the time. So how do you get comfortable asking? In this actionable talk, social psychologist Heidi Grant shares four simple rules for asking for help and getting it — while making the process more rewarding for your helper, too.
Cities with a higher incidence of a certain kind of racist tweets report more actual hate crimes related to race, ethnicity, and national origin, a new study of 532 million tweets indicates. Researchers analyzed the location and linguistic features of tweets from between 2011 and 2016 and trained a machine learning model—one form of artificial intelligence—to identify and analyze two types of twe
Research shows key proteins in disease can spread from gastrointestinal tract to brain Evidence that Parkinson's disease may start off in the gut is mounting, according to new research showing proteins thought to play a key role in the disease can spread from the gastrointestinal tract to the brain. The human body naturally forms a protein called alpha-synuclein which is found, among other places
The flashier fruits of Albert Einstein's century-old insights are by now deeply embedded in the popular imagination: Black holes, time warps and wormholes show up regularly as plot points in movies, books, TV shows. At the same time, they fuel cutting-edge research, helping physicists pose questions about the nature of space, time, even information itself. Perhaps ironically, though, what is argu
With summer in full swing, many people are cooling off in swimming pools. However, some of the substances that are made when chlorine in the water reacts with compounds in human sweat, urine or dirt aren't so refreshing. Now, researchers have compared the effectiveness of different water treatment processes in mitigating these so-called disinfection byproducts (DBPs). They report their results in
People agree that bike commuting improves health, reduces air pollution and eases traffic, a recent survey suggests. But that wasn't enough to get most people to commute by bike. New research indicates that a person's neighborhood may play a large role in influencing the decision to commute by bike.
Researchers at the University of Illinois at Chicago and AbbVie Inc. have developed a novel device that will help scientists and pharmaceutical companies more effectively screen and test formation of drug substance — active pharmaceutical ingredient (API).
Together with Germany's National Meteorological Service, the Deutscher Wetterdienst, computer science professor Jens Dittrich and his doctoral student Christian Schön from Saarland University are working on a system that is supposed to predict local thunderstorms more precisely than before.
Scientists from the Department of Energy's SLAC National Accelerator Laboratory and Stanford University have taken the first images of carbon dioxide molecules within a molecular cage—part of a highly porous nanoparticle known as a MOF, or metal-organic framework, with great potential for separating and storing gases and liquids.
You would be forgiven for mistaking Representative Tim Ryan of Ohio for Seth Moulton, the 40-year-old Massachusetts representative who is also running for president, and who joined Ryan in a leadership challenge to Nancy Pelosi back in 2016. You might also be excused for confusing him with Eric Swalwell, a similarly aged California congressman-turned presidential candidate—or, if you squint, mayb
Researchers from the University of Houston, University of Minnesota, and University of California-San Diego published a new paper in the Journal of Marketing, which finds that TV ads lead to a variety of online responses and that advertisers can use these signals to enrich their media planning and ad evaluations.
In this webinar, learn about antibody-drug conjugates (ADCs) and their function, how to analyze and characterize ADCs, and developing ADC processes and formulations.
Researchers from the University of Granada (UGR), the Andalusian Institute of Agricultural Research and Training, Fishing, Food and Organic Production (IFAPA), and the Pyrenean Institute of Ecology of the Spanish National Research Council (CSIC) confirm that pine trees subjected to water stress manage their resources better when they have less competition in their immediate environment.
In rare, hereditary storage diseases such as Sandhoff's disease or Tay-Sachs syndrome, the metabolic waste from accumulating gangliosides cannot be properly disposed of in the nerve cells because important enzymes are missing. The consequences are grave: They range from movement restrictions to blindness, mental decline and early death. Scientists at the University of Bonn now demonstrate why thes
Efforts to support older people during extreme heat should focus on those who lack independence or have pre-existing health issues, according to an expert from the University of Warwick.
Researchers from the University of Turku have discovered a new route that transports subcutaneously administered antibodies into lymph nodes in just a few seconds. The discovery enables targeted therapies for the immune system.
As the regulatory status of energy drinks continues to be debated, a growing number of consumers and public health advocates are asking how a product loaded with caffeine and other stimulants became so popular among young people. Lax regulation, marketing, and scientific uncertainty are partly to blame.
Editor's Note: This article is part of a series about the gay-rights movement and the 50th anniversary of the Stonewall uprising. T he very first Pride parade in Los Angeles was organized alphabetically. Towards the front of the march, The Advocate newspaper presented "a carload of groovy guys in bikini swimsuits," as described by the Reverend Troy Perry in his memoir Lord Is My Shepherd and He K
Researchers using ALMA (Atacama Large Millimeter/submillimeter Array) found a small dust concentration in the disk around TW Hydrae, the nearest young star. It is highly possible that a planet is growing or about to be formed in this concentration. This is the first time that the exact place where cold materials are forming the seed of a planet has been pinpointed in the disk around a young star.
Adding hydroquinone, a skin-bleaching ingredient, to a well-known 'metal organic framework' changes its copper ions in a way that makes this porous material exceptionally stable in water.
NASA's Curiosity rover has detected a brief burp of methane on Mars, and we may be able to confirm the signal because satellites were monitoring the same region
New research digs into how galactic halos interact with the rest of their galaxies. Take a look at any galaxy in the universe through a telescope or in pictures from observatories and you might think you have a good idea of its shape. Think again—roughly half of a galaxy's matter is invisible. But scientists have since discovered this missing mass in halos of cool gas surrounding galaxies. Unders
Arteries and veins leave their marks on the bones of the cranium, and these traces can be used in anthropology, bioarchaeology and paleontology to investigate the blood system in extinct species or past populations. This week, the Journal of Anatomy is publishing an article by lead author Emiliano Bruner, paleoneurologist at the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH),
Arteries and veins leave their marks on the bones of the cranium, and these traces can be used in anthropology, bioarchaeology and paleontology to investigate the blood system in extinct species or past populations. This week, the Journal of Anatomy is publishing an article by lead author Emiliano Bruner, paleoneurologist at the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH),
World leaders who gather in Osaka, Japan, for the G20 summit this week will begin a conversation on worldwide data governance—and though they are deeply divided on the question of who should control data, some nations could seek to devise a system that excludes China. Japanese Prime Minister Shinzo Abe, who is hosting this year's summit, says he sees data governance as a priority. Indeed, the fac
Right before you have a heart attack you start to gasp for breath in a uniquely identifiable pattern. Naturally, researchers taught an Amazon Echo how to notice it and call for help. The post Soon, Alexa Will Know When You're About to Die appeared first on ExtremeTech .
In the digital world, sight and sound had a bit of a head start, but our other senses have few practical applications. But that's not the case with robots, and MIT just leveraged an incredible new sensor to let a robot "see" with its fingers. The post MIT Created a Robot That Maps 3D Objects by Touch appeared first on ExtremeTech .
Många organisationer verkar i ett sammanhang med ökad komplexitet och hög förändringstakt – och är därför allt mer beroende av ledarnas och medarbetarnas kompetenser, vilket driver ett behov av att utveckla ledare, medarbetare och effektiva organisationsformer. Ledarskapsutveckling är en miljardindustri, samtidigt som det ur ett akademiskt perspektiv saknas central på forskning inom området. I et
Wetlands in Canada's boreal forest contain deep deposits of carbon-rich soils, made up of decomposed vegetation (peat) that has accumulated over thousands of years. Globally, peatlands store twice as much carbon as all of the world's forests combined. Protecting this carbon store is critical in the fight against climate change.
In Lebanon, around 350,000 Syrian refugees don't have access to enough safe and nutritious food. To stem the crisis, the World Food Programme (WFP) of the United Nations introduced an electronic voucher system to distribute food aid. People are given debit cards loaded with "e-vouchers" that they can use in certain shops to buy food.
Sartorius will be showcasing the latest addition to its cellular analysis portfolio on booth #103 at this year's CYTO® conference and exhibition, with the launch of the Intellicyt iQue3.
A team of researchers from Tohoku University, J-PARC, and Tokyo Institute of Technology conducted an in-depth study of magnetic quasiparticles called 'triplons.' The team conducted the study with a low-dimensional quantum magnet, Ba2CuSi2O6Cl2, using neutron inelastic scattering by AMATERAS at J-PARC. Their findings lead to the discovery of a new 'topologically protected triplon edge state' in the
Instead of trying to produce a programme to simulate the adult mind, why not rather try to produce one which simulates the child's? If this were then subjected to an appropriate course of education one would obtain the adult brain. Alan Turing famously wrote this in his groundbreaking 1950 paper Computing Machinery and Intelligence , and laid the framework for generations of machine learning scie
Permanent Damage Teen guys with dreams of one day having kids might want to rethink their after-school snack. A new Harvard University-led study found that eating a "Western diet" – one packed with high-fat and processed foods, such as pizza, chips, and red meat – as a teenager leads to a lower sperm count and damaged sperm-producing Sertoli cells. While a change in diet can increase sperm counts
In conventional imaging methods, a beam of photons (or other particles) is reflected off the object to be imaged. After the beam travels to a detector, the information gathered there is used to create a photograph or other type of image. In an alternative imaging technique called "ghost imaging," the process works a little differently: an image is reconstructed from information that is detected fr
Active margins, where an oceanic plate slides under a continental plate, may cause earthquakes and tsunamis. Further, they are known for shifting sediments from margin slopes into deep ocean trenches. Geologists now found evidence of earthquake-triggered surface sediment erosion on a submarine slope close to the area of the 2011 Tohoku-Oki earthquake.
Malaysian customs officers arrested two Indian men attempting to smuggle over 5,000 terrapins through the country to be sold as pets, officials said Wednesday.
Malaysian customs officers arrested two Indian men attempting to smuggle over 5,000 terrapins through the country to be sold as pets, officials said Wednesday.
Novel antibody labeling immunoassay technology for multiplex immune profiling addresses one of the fastest growing, billion-dollar life science market sectors
The ice worm is one of the largest organisms that spends its entire life in ice and Washington State University scientist Scot Hotalilng is one of the only people on the planet studying it.
Residents of Tasmania's D'Entrecasteaux Channel Peninsula, Kingborough and Huon Valley communities are being hailed as the frontline heroes in the war against two deadly transmissible cancers affecting Tasmanian devils—Devil Facial Tumour Disease (DFTD) and Devil Facial Tumour 2 (DFT2).
The ice worm is one of the largest organisms that spends its entire life in ice and Washington State University scientist Scot Hotalilng is one of the only people on the planet studying it.
Residents of Tasmania's D'Entrecasteaux Channel Peninsula, Kingborough and Huon Valley communities are being hailed as the frontline heroes in the war against two deadly transmissible cancers affecting Tasmanian devils—Devil Facial Tumour Disease (DFTD) and Devil Facial Tumour 2 (DFT2).
France's second city and key tourist hub Marseille has enforced temporary swimming bans on several beaches amid pollution concerns, disappointing locals and tourists hoping to take a dip as temperatures soar.
The European Union opened Wednesday an investigation to determine whether US semi-conductor giant Broadcom may be violating the bloc's competition rules and hurting rivals.
Achieving a good signal-to-background ratio in neutron scattering experiments is a crucial factor in instrument and sample environment design. However, in current Monte Carlo simulation software, not all neutron interactions are considered. If all the neutron interactions that contribute to the background can be included, the expected signal-to-background ratios can be simulated and used to design
With Britain set to become the first major economy to commit in law to reaching a target of net-zero emissions by 2050, what is carbon neutrality, and how will nations reach it?
Through the analysis of specific fallout particles in the environment, a joint UK-Japan team of scientists has uncovered new insights into the sequence of events that led to the Fukushima nuclear accident in March 2011.
For more than a century, it was culturally unacceptable for women to join men in the front lines of combat in the U.S. military. Even though the policy banning women from combat roles has been rescinded, their integration into the front line and special operations has been slow and met with resistance. Two University of Kansas researchers have published a book on factors that have slowed the integ
A group of researchers have reported how much peatland there is in the world. Peatlands can store carbon (C) and help regulate the climate. But peatland degradation is releasing carbon into the atmosphere. To conserve peatlands and halt their contribution to atmospheric carbon, researchers need to understand their extent, status, and C stocks.
A molecule-trapping material that normally degrades in water remains stable after two years of humidity exposure when treated with a common skin bleach.
Researchers using ALMA (Atacama Large Millimeter/submillimeter Array) found a small dust concentration in the disk around TW Hydrae, the nearest young star. It is highly possible that a planet is growing or about to be formed in this concentration. This is the first time that the exact place where cold materials are forming the seed of a planet has been pinpointed in the disk around a young star.
Residents of Tasmania's D'Entrecasteaux Channel Peninsula, Kingborough and Huon Valley communities are being hailed as the frontline heroes in the war against two deadly transmissible cancers affecting Tasmanian devils — Devil Facial Tumor Disease (DFTD) and Devil Facial Tumor 2 (DFT2).
Democrats and Republicans may stand on opposite ends of the political spectrum, but both parties share a hidden agreement surrounding President Donald Trump's online behavior, found a new University at Buffalo study.
Recent research finds the internet is giving both employers and job seekers access to more information, but has not made the hiring process more meritocratic. Instead, lower-wage jobs have become "black holes," with intense competition for positions, while many higher-wage jobs are going to targeted candidates and are open to only limited competition.
Heading in to the G20 summit, Facebook is on notice from powerful regulators including the Fed chief that its ambitious plans for a global crypto-currency face piercing scrutiny.
A French consumer rights group said Wednesday that it has launched a class action lawsuit against US tech giant Google for violating the EU's strict data privacy laws.
Papua New Guinea's volatile Ulawun volcano—designated one of the world's most hazardous—erupted Wednesday, spewing lava high in the air and sending residents fleeing.
Chinese telecommunications giant Huawei said Wednesday that its 5G business has not been impacted by the recent US sanctions amid a prolonged trade war between the world's two largest economies.
Together with an international team, Senckenberg scientist Hervé Bocherens studied the fossilized teeth of the carnivorous dinosaur Tarbosaurus bataar. Based on stable isotopes, the researchers were able to draw inferences regarding the habitat and feeding habits of this relative of T. rex, who lived around 70 million years ago. According to the results, the carnivores were not very picky in their
Many accounts at present support the presence of liquid water on Mars, where hydrated minerals testify to past processes of aqueous weathering in Martian meteorites such as NWA 7533/7034. Planetary scientists aim to estimate the timing of weathering on the Martian crust to help understand its evolution, the availability of liquid water and habitability on Mars. In a recent study, Martin Guitreau a
COSMIC-2, a mission of six satellites designed to improve weather forecasts and space weather monitoring, blasted into orbit at 2:30 a.m. ET today, June 25, from Cape Canaveral, Florida, aboard a SpaceX Falcon Heavy rocket.
New research suggests that green growth climate mitigation policies are not sufficient for reaching the ambitious targets of the Paris Agreement, to limit global warming to well below 2°C by the end of the century.
Coffee, apples, honey – were it not for the precious work of pollinators, countless things that we eat and drink would not exist, totalling more than 30% of global food production. Most pollinators are insects, particularly from the bee family (close to a thousand species in France alone), along with butterflies and diptera, such as syrphids.
The paleoneurology team at the CENIEH has just published a cognitive archaeology paper on emotion and attention when handling Lower Paleolithic tools, in which around 50 volunteers participated
Nature, Published online: 26 June 2019; doi:10.1038/d41586-019-01972-3 A personal take on panning out to see the past both grips and frustrates Jo Marchant.
Nature, Published online: 26 June 2019; doi:10.1038/d41586-019-02002-y Country's mouse-genetics programme is at risk, say researchers at MRC Harwell Institute.
WSU researchers have identified an ice worm on Vancouver Island that is closely related to ice worms 1,200 miles away in southern Alaska. The researchers believe the genetic intermingling is the result of birds carrying the glacier-bound worms (or their eggs) up and down the west coast.
Orthopaedic surgeons are the third-highest physician prescribers of opioids, writing more than 6 million prescriptions a year. Because over-dispensing of opioids is a factor contributing to the ongoing opioid epidemic, researchers at Johns Hopkins surveyed orthopaedic providers to better understand what drives their prescribing practices and to identify gaps in knowledge and potentially worrisome
A recent study conducted at the Westmead Institute for Medical Research has shed light on the role of vitamin D in muscle cells. The study looked at the role of vitamin D in muscles in mice, and showed that vitamin D signaling (how cells communicate with one another) is needed for normal muscle size and strength.
Coffee, apples, honey – were it not for the precious work of pollinators, countless things that we eat and drink would not exist, totalling more than 30% of global food production. Most pollinators are insects, particularly from the bee family (close to a thousand species in France alone), along with butterflies and diptera, such as syrphids.
The paleoneurology team at the CENIEH has just published a cognitive archaeology paper on emotion and attention when handling Lower Paleolithic tools, in which around 50 volunteers participated
A team of researchers from Tohoku University, J-PARC, and Tokyo Institute of Technology conducted an in-depth study of magnetic quasiparticles called "triplons." The team conducted the study with a low-dimensional quantum magnet, Ba2CuSi2O6Cl2, using neutron inelastic scattering by AMATERAS at J-PARC. Their findings lead to the discovery of a new "topologically protected triplon edge state" in the
The UN recognises 180 currencies worldwide as legal tender, all of them issued by nation states. It does not recognise cryptocurrencies like bitcoin in this way, even if communities of enthusiasts have been treating them as a means of exchange for over a decade now.
It's a sadly familiar image in several developing countries' media reports: people frantically searching the rubble of a collapsed building for survivors.
It looks like a poster of the famous Hubble Deep Field, marked with white streaks by a child, or put away carelessly and scratched in the process. But it's not. The white streaks aren't accidents; they're the paths of asteroids.
A pair of researchers at the Hong Kong University of Science and Technology has found that a chiral zero sound (CZS) effect can be induced in Weyl semimetals. In their paper published in the journal Physical Review Letters, Zhida Song and Xi Dai describe their experiments with Weyl semimetals and what they found.
A very large team of researchers affiliated with several institutions in China and Japan has measured the highest energy photon ever recorded. In their paper published in the journal Physical Review Letters, the group describes their study of data from the Tibet Air Shower Gamma Collaboration and what they found.
Perched at almost 8,500 metres on Everest, we paced back-and-forth, attempting to stave off frostbite as temperatures hovered close to -30°C and our drill batteries became too cold to work. Our ambition to install the highest automatic weather station in history looked destined for failure.
Kitty Hawk, one of the flying car startups backed by Google founder and Alphabet CEO Larry Page, announced that its partnering with Boeing to develop its semi-autonomous flying …
Victorian education minister James Merlino's announcement mobile phones will be banned for all students at state primary and secondary schools is certainly a bold move.
Technology may be better than a tape measure for assessing a woman's risk for lymphedema, painful swelling in the arm after breast cancer surgery. Researchers compared bioimpedance spectroscopy (BIS) and the traditional tape measure method to see which was better at identifying women who should use compression sleeves and gauntlets to reduce lymphatic fluid in the arm and prevent progression to l
Researchers from National Institute for Physiological Sciences revealed the molecular mechanism underlying increase the risk of heart failure during hemodynamic load by methylmercury exposure. They found that exposure of mice to extremely low-dose methylmercury increases cardiac fragility after pressure overload through Drp1-mediated mitochondrial hyperfission in mice, and that depolysulfidation o
News broke yesterday morning (first at the Wall Street Journal , I believe) that Abbvie has agreed to acquire Allergan. This is one of the larger pharma mergers of recent years, and regular readers of this site will have a pretty good idea of the sigh and roll of the eyes with which I greet it. I think Ed Silverman at Stat 's Pharmalot does a good job capturing the mood: Over the past couple of y
Fireworks atop "A" Mountain on July 4 commemorate Independence Day, but also usually mark the start of monsoon thunderstorms, according to local wisdom.
Romans are depicted as slashing and burning their way across countries in order to secure their empire. But a University of Michigan archeologist suggests that the Romans may have trapped more flies with honey.
In 3-D printing, residual stress can build up in parts during the printing process due to the expansion of heated material and contraction of cold material, generating forces that can distort the part and cause cracks that can weaken or tear a part to pieces, especially in metals.
While female fertility comes to an irrevocable end with the menopause (at a consistently average age of 51 years), men are not constrained by similar biological senescence. Studies have shown that sperm counts may decline and DNA damage in sperm cells may increase over time, but the celebrity fatherhood of ageing actors and rock stars perpetuates the myth that male fertility might last forever.
When Amnon Amir, Jon Sanders, and their colleagues began using positive control samples of Vibrio fischeri in plate-based extractions as a way to validate results, they unexpectedly observed that many of the surrounding samples would also show Vibrio fischeri in their composition. They set out to design an experiment to quantify this problem, which led to the newly published paper "Quantifying and
A new watermelon line, developed by Agricultural Research Service (ARS) and Clemson University scientists, gets to the root of the problem of a major disease and pest of watermelon crops in the southern United States.
Big data, an interactive platform and six different technological innovations are the core of the recently started Horizon 2020 project B-GOOD (http://b-good-project.eu/) in its 4-year mission to pave the way toward healthy and sustainable beekeeping across the European Union.
More than 24 million people worldwide suffer from neurodegenerative diseases such as Alzheimer's, Parkinson's or Huntington's. The molecular causes of these diseases have so far been little investigated. A team of scientists from Leipzig University and the Technical University of Dresden, as well as the Kurt Schwabe Institute Meinsberg, is now looking into these molecular mechanisms with new appro
An incredibly complex system lives beneath our feet, transporting metals to Earth's crust and undergoing a myriad of chemical reactions that influence our daily lives. These environmental interactions affect everything from our ability to use soil to produce food and the cleanliness of our drinking water to how we might mitigate our changing climate. Humans have a huge impact on Earth's subsurface
When Amnon Amir, Jon Sanders, and their colleagues began using positive control samples of Vibrio fischeri in plate-based extractions as a way to validate results, they unexpectedly observed that many of the surrounding samples would also show Vibrio fischeri in their composition. They set out to design an experiment to quantify this problem, which led to the newly published paper "Quantifying and
A new watermelon line, developed by Agricultural Research Service (ARS) and Clemson University scientists, gets to the root of the problem of a major disease and pest of watermelon crops in the southern United States.
Deepfake videos are hard for untrained eyes to detect because they can be quite realistic. Whether used as personal weapons of revenge, to manipulate financial markets or to destabilize international relations, videos depicting people doing and saying things they never did or said are a fundamental threat to the longstanding idea that "seeing is believing." Not anymore.
When working near lava at 1,300 to 2,000 degrees Fahrenheit, the terms 'lightweight' and 'comfortable' might not apply to a volcanologist's protective clothing.
Late on Monday night, the City of Sydney became the first state capital in Australia to officially declare a climate emergency. With climate change considered a threat to human life, Sydney councillors unanimously supported a motion put forward by Lord Mayor Clover Moore to mobilise city resources to reduce carbon emissions and minimise the impact of future change.
Big data, an interactive platform and six different technological innovations are the core of the recently started Horizon 2020 project B-GOOD (http://b-good-project.eu/) in its 4-year mission to pave the way toward healthy and sustainable beekeeping across the European Union.
Hera will show us things we've never seen before. Astrophysicist and and Queen guitarist Brian May tells the story of the ESA mission that would be humanity's first-ever spacecraft to visit a double asteroid.
Infrared (IR) microspectroscopy at the Australian Synchrotron provided insights into the molecular orientation inside the microstructure of a particular form of paracetamol (form II), which contributed to better water solubility and compressibility than the more stable commercially used product.
Cockroaches are serious threats to human health. They carry dozens of types of bacteria, such as E. coli and salmonella, that can sicken people. And the saliva, feces and body parts they leave behind may not only trigger allergies and asthma but could cause the condition in some children.
Cockroaches are serious threats to human health. They carry dozens of types of bacteria, such as E. coli and salmonella, that can sicken people. And the saliva, feces and body parts they leave behind may not only trigger allergies and asthma but could cause the condition in some children.
Neutron techniques are good for studying light atoms like hydrogen—great for biological molecules that contain large numbers of them. Neutrons are particularly sensitive to isotopic substitution of hydrogen (1H) with deuterium (2H) and this allows contrast techniques to be used to study molecules in detail. For this, users need to prepare deuterated versions of the biological molecules that they w
As the Mars InSight lander begins listening to the interior of Mars, some scientists are already proposing that some marsquakes could be signals of groundwater beneath the frozen surface of the Red Planet.
A group of scientists from Japan led by Professor Takashi Kamakura of Tokyo University of Science has demonstrated the molecular and cellular basis of the toxic effects of the antibiotic chloramphenicol on eukaryotic cells. Concluding their study published in Scientific Reports, they write, "Identification of the molecular target of chloramphenicol may lead to better elucidation and resolution of
Democrats and Republicans may stand on opposite ends of the political spectrum, but when it comes to President Donald Trump's tweets, they have more in common than meets the eye.
A group of scientists from Japan led by Professor Takashi Kamakura of Tokyo University of Science has demonstrated the molecular and cellular basis of the toxic effects of the antibiotic chloramphenicol on eukaryotic cells. Concluding their study published in Scientific Reports, they write, "Identification of the molecular target of chloramphenicol may lead to better elucidation and resolution of
Using advanced techniques at the Canadian Light Source (CLS) at the University of Saskatchewan, scientists have created three-dimensional images of the complex interior anatomy of the human ear, information that is key to improving the design and placement of cochlear implants.
In a surprising marriage of science and art, researchers at MIT have developed a system for converting the molecular structures of proteins, the basic building blocks of all living beings, into audible sound that resembles musical passages. Then, reversing the process, they can introduce some variations into the music and convert it back into new proteins never before seen in nature.
Composers string notes of different pitch and duration together to create music. Similarly, cells join amino acids with different characteristics together to make proteins. Now, researchers have bridged these two seemingly disparate processes by translating protein sequences into musical compositions and then using artificial intelligence to convert the sounds into brand-new proteins. They report
Increasingly, shoppers are choosing nutraceuticals, cosmetics and herbal remedies with natural ingredients, and these products are readily available in many drug stores and supermarkets. But some consumers, health professionals and policy makers have raised concerns about the safety, quality and effectiveness of some of these health products. Now, researchers in ACS' Journal of Agricultural and Fo
Simulerede eksamenssituationer skal give studerende mulighed for at blive mere komfortable med at sidde foran underviser og censor i et forsøg på at gennemleve det angstfremkaldende scenarie.
FAR WEST TEXAS —Before Jeff Boyd became the city of Marfa's public-works director, he had a long career underwater. As a commercial saturation diver, one of the most specialized kinds of divers around, he would spend his days some 400 feet below the surface, breathing a mixture of helium and oxygen, for month-long stretches. Normal air would kill at that depth. It was around that time, when he wo
More than 24 million people worldwide suffer from neurodegenerative diseases such as Alzheimer's, Parkinson's or Huntington's. The molecular causes of these diseases have so far been little investigated. A team of scientists from Leipzig University and the Technical University of Dresden, as well as the Kurt Schwabe Institute Meinsberg, is now looking into these molecular mechanisms with new appro
A recent study led by Princeton University researchers, in collaboration with University of Maryland and IBM, explored the architectural design of quantum computers (QC). In a paper presented at the 2019 ACM/IEEE International Symposium on Computer Architecture, the researchers performed the largest real-system evaluation of quantum computers to date, using seven quantum computers from IBM, Rigett
Bees are valuable to humans not only because they produce honey, but also because they pollinate wildflowers and food crops. They exclusively eat nectar and pollen. So in areas where intensive agriculture is practised, they suffer from the thin supply of flowers in May and June, when cultivated oilseed rape (colza) and sunflower are not in bloom. During that period, pollen collection, honey produc
What looks like a still of an exploding firework is actually taken from an ESA simulation of humankind's expansion across the stars, produced for an international competition. Each dot is a habitable star system, with the colored stripes representing interstellar expeditions between them.
As the global population grows, fresh water supplies are more precious than ever. While scientists and engineers know how to purify water, making those methods sustainable and energy efficient is another question.
Males of many species slow down in their pursuit of females as they age. Not so with elephants. A new study published today reveals that bull elephants increase the energy they put into reproduction as they get older.
An incredibly complex system lives beneath our feet, transporting metals to Earth's crust and undergoing a myriad of chemical reactions that influence our daily lives. These environmental interactions affect everything from our ability to use soil to produce food and the cleanliness of our drinking water to how we might mitigate our changing climate. Humans have a huge impact on Earth's subsurface
The World Health Organization warns that antibiotic resistance is one of the biggest global threats and predicts that worldwide death rates from this threat could skyrocket past 10 million a year by 2050, becoming more deadly than cancer, which kills 8.2 million people worldwide each year.
Bees are valuable to humans not only because they produce honey, but also because they pollinate wildflowers and food crops. They exclusively eat nectar and pollen. So in areas where intensive agriculture is practised, they suffer from the thin supply of flowers in May and June, when cultivated oilseed rape (colza) and sunflower are not in bloom. During that period, pollen collection, honey produc
Males of many species slow down in their pursuit of females as they age. Not so with elephants. A new study published today reveals that bull elephants increase the energy they put into reproduction as they get older.
Working toward understanding around divisive issues such as gun violence, climate change, and immigration isn't impossible, says Craig Rood, but he admits it won't be easy. If we truly want to make progress on these difficult issues, Rood says we must understand how we got to this point and be willing to let go of the "us versus them" mentality. "My goal is not to advocate for a particular policy
Increasingly, shoppers are choosing nutraceuticals, cosmetics and herbal remedies with natural ingredients, and these products are readily available in many drug stores and supermarkets. But some consumers, health professionals and policy makers have raised concerns about the safety, quality and effectiveness of some of these health products. Now, researchers in ACS' Journal of Agricultural and Fo
More than 3.8 million deaths worldwide each year are blamed on household air pollution, and scientists are turning to many strategies to try to clean the air in homes and business, including the use of everyday plants.
Increasingly, shoppers are choosing nutraceuticals, cosmetics and herbal remedies with natural ingredients, and these products are readily available in many drug stores and supermarkets. But some consumers, health professionals and policy makers have raised concerns about the safety, quality and effectiveness of some of these health products. Now, researchers in ACS' Journal of Agricultural and Fo
Toward the end of his vice presidency, Joe Biden was a prime player in the administration's bid to win support for the Trans-Pacific Partnership, the failed trade deal that was supposed to be the crowning achievement of Barack Obama's presidency-long "pivot to Asia." Biden liked to hold up two maps of the Pacific region—one shaded in blue to show America's influence in the region if the deal pass
If we can relax and become calm before seeing the doctor, we'll likely pay attention to and better comprehend written health messages, according to new research. Researchers tested whether increasing one's positive self through meditation can lessen negative feelings prior to getting the health information. "An intense negative emotion can lead to a patient to focus on only one or two pieces of i
US semiconductor firm Micron Technology said Tuesday it has resumed some sales to Chinese technology giant Huawei despite a ban imposed by President Donald Trump on national security grounds.
A famous result in psychology says that people fail to intervene when they see people in violent situations, but a review of CCTV footage finds that isn't true
Elon Musk's SpaceX notched up some notable wins this morning, including a strong demonstration of Falcon Heavy's overall capabilities for the US Air Force. The post SpaceX Successfully Launches, Partially Recovers Falcon Heavy appeared first on ExtremeTech .
Subscribe to Crazy/Genius : Apple Podcasts | Spotify | Stitcher | Google Play The numbers are staggering: thousands of films and TV shows available to 160 million subscribers in 190 countries. Netflix has changed the entertainment business; that much is obvious. But how has it changed the meaning of video entertainment in our culture—and the way movies and television shows are made? In this episo
Nature, Published online: 26 June 2019; doi:10.1038/d41586-019-01989-8 Carrying on with data collection and model creation can be harrowing, but there are rewards in the chance to make a difference.
Nature, Published online: 26 June 2019; doi:10.1038/d41586-019-01999-6 Few US clinics offering unproven treatments employ physicians with expertise in all the conditions they offer to treat, finds survey.
China, the US, and the European Space Agency are sending vehicles to explore the red planet. They'll be joined by a Russian lander and an Emirati orbiter.
A bill introduced by senators Mark Warner and Josh Hawley would require big tech companies to disclose the data they collect and value it for each user.
The author brought his 5-year-old son to the world's largest building industry expo. "Hi, Dad," he says from the seat of a hulking dump truck. "I'm ginormous!"
Den nye uddannelse til behandlerfarmaceut og den medfølgende autorisation til at genordinere receptpligtige lægemidler, kan være med til at aflaste landets pressede lægevagter. Det vurderer formand for PLO's kommuneudvalg.
– Studien understryker vilken vinst för folkhälsan det faktiskt innebär att minska arbetslösheten. De hälsomässiga aspekterna hamnar tyvärr ofta i skymundan när arbetslöshet diskuteras, säger Fredrik Norström, forskare vid Institutionen för epidemiologi och global hälsa vid Umeå universitet. Att arbetslöshet gör folk sjukare är ett sedan länge känt faktum. Det finns sedan tidigare studier som vis
Imagine if your printer had an 'unprint' button that used pulses of light to remove toner, curbing environmental impacts compared with conventional paper recycling.
Neuroscientists at the University of Sussex have revealed the factors that impact on memory interference, showing that a change is as good as a rest when it comes to retaining more information. They also discovered that timing plays a key role, as old information can effectively be replaced by new information when learning takes place during a memory lapse.
Det er svært at være uenig med nye regerings fokus på almen praksis, og meget står og falder med den nye sundhedsministers handlekraft, siger PLO-formand.
Region Midtjylland og 19 kommuner i regionen har fundet 3 mio. kr., som skal bruges på at aflønne egnens praktiserende læger for rådgivning af kommunalt ansatte i akutfunktionerne. Aftalen træder i kraft 1. september og skal forebygge indlæggelser.
In one of my many failed schemes to introduce a more equitable division of labor into my home, I stuck lined Post-it Notes on the refrigerator. "Please write down the chores you do. At the end of the week, we'll figure out if anything needs to change." I recorded my contributions zealously: cooking, dishes, laundry, sweeping, swiping (bathrooms). Although they did a few household tasks—a load of
Few Americans know what it's like to stand onstage for a nationally televised presidential debate. And the few who do have strong partisan biases. With both of those things in mind, I listened Monday as Chris Christie, the former New Jersey governor and a Republican candidate in 2016, discussed the upcoming Democratic debates during an interview with the Atlantic editor Jeffrey Goldberg at the As
Burner phones, FBI stakeouts, search warrants—Season 6 of The Wire ? No, just our social betters street fighting their children's way into elite colleges. In March, we got Operation Varsity Blues, which charged a group of wealthy parents and an alleged conman with conspiring to get lackluster students into posh colleges in a scheme so improbably complex that it triggered the use of the RICO statu
Because I'm not a politician, I don't have to wear an American-flag lapel pin. (I've never seen a photo of, say, Dwight Eisenhower, or FDR, or JFK, wearing a flag pin. Richard Nixon did it sometimes. It became de rigueur some time after the 9/11 attacks of 2001.) But this is the story of a pin I've started wearing recently. The pin says Report for America , as you can see below. You could read th
Att låg födelsevikt kan kopplas till komplikationer under både graviditet och förlossning är ett känt faktum. Likaså att dessa barn i högre utsträckning får högt blodtryck som vuxna. Kopplingarna till genetik och miljö har dock varit oklara, men genom att tydligt skilja effekterna av barns respektive mödrars genetik på födelsevikten klarnar också bilden hur födelsevikten förhåller sig till olika
Nature, Published online: 26 June 2019; doi:10.1038/d41586-019-01970-5 Michael Rowan-Robinson finds an account of NASA's Spitzer mission gripping but narrowly focused.
During times of war or national crisis in the U.S., school boards and officials are much more wary about allowing teachers and kids to say what they think. If our teachers avoid controversial questions in the classroom, kids won't get the experience they need to know how to engage with difficult questions and with criticism. Jonathan Zimmerman argues that controversial issues should be taught in
Researchers have discovered 56 previously uncharted subglacial lakes beneath the Greenland Ice Sheet bringing the total known number of lakes to 60. Although these lakes are typically smaller than similar lakes in Antarctica, their discovery demonstrates that lakes beneath the Greenland Ice Sheet are much more common than previously thought.
A group of scientists from Japan — led by Professor Takashi Kamakura of Tokyo University of Science — has demonstrated, for the first time, the molecular and cellular basis of the 'adverse' effects of the antibiotic chloramphenicol on eukaryotic cells.
Africa is projected to be home to nearly 3 billion people by 2100, but rapid population growth will cause widespread environmental degradation unless effective family planning becomes widespread policy, according to new research that tracked increased population pressures on the continent's ecosystems.
Sitting while watching television, but not sitting at work, is associated with a greater risk of heart attack, stroke, or early death, Columbia researchers have found.
Among African Americans, television watching proved more of a heart health threat than sitting at a desk job.African Americans who watched more than four hours of television every day faced a 50% greater risk of heart disease and premature death compared with those who watched less than two hours.However, African Americans who watched regular TV but also engaged in moderate to vigorous physical ac
Nature, Published online: 26 June 2019; doi:10.1038/d41586-019-01986-x Proteins dating back more than one million years have been extracted from some fossils, and could help to answer some difficult questions about archaic humans.
Scientific Reports, Published online: 26 June 2019; doi:10.1038/s41598-019-45381-y Modelling the dynamics of EBV transmission to inform a vaccine target product profile and future vaccination strategy
Scientific Reports, Published online: 26 June 2019; doi:10.1038/s41598-019-45803-x Identification of the fructose transporter GLUT5 ( SLC2A5 ) as a novel target of nuclear receptor LXR
Scientific Reports, Published online: 26 June 2019; doi:10.1038/s41598-019-41039-x Chloramphenicol inhibits eukaryotic Ser/Thr phosphatase and infection-specific cell differentiation in the rice blast fungus
Scientific Reports, Published online: 26 June 2019; doi:10.1038/s41598-019-45648-4 Contextual influences in the peripheral retina of patients with macular degeneration
Scientific Reports, Published online: 26 June 2019; doi:10.1038/s41598-019-45469-5 Effect of NIR laser therapy by MLS-MiS source against neuropathic pain in rats: in vivo and ex vivo analysis
Scientific Reports, Published online: 26 June 2019; doi:10.1038/s41598-019-45815-7 Erosion and deposition beneath the Subantarctic Front since the Early Oligocene
Scientific Reports, Published online: 26 June 2019; doi:10.1038/s41598-019-45730-x Piezoelectric needle sensor reveals mechanical heterogeneity in human thyroid tissue lesions
In the ongoing quest to offer a truly full-front display on a smartphone, Oppo just unveiled the first-ever selfie camera that sits underneath the screen of a handset. The design means not …
When he ran for president, Donald Trump said he wasn't going to telegraph his moves to America's adversaries. He's been doing just that. He said he wouldn't draw "red lines" and then ignore them. That's happening too. He vowed the United States on his watch would be a military colossus so feared that "nobody's going to mess with us." People are messing with us. Trump leaves for Japan today for a
Med henvisning til folketingsvalget, regeringsforhandlingerne og ønsket fra offentligheden om at starte en undersøgelse af teleskandalen vil Rigspolitiet på nuværende tidspunkt ikke svare på spørgsmål om sagen.
Mette Frederiksen (S) bliver Danmarks næste statsminister, da en aftale med Radikale Venstre, SF og Enhedslisten sikrer, at hun ikke har et flertal imod sig. Energi, transport og landbrug får ifølge aftalen travlt med grøn omstilling.
Africa is projected to be home to nearly 3 billion people by 2100, but rapid population growth will cause widespread environmental degradation unless effective family planning becomes widespread policy, according to new research that tracked increased population pressures on the continent's ecosystems.
Socialdemokratiet, SF, Enhedslisten og Radikale har indgået en politisk aftale, der skal danne grundlaget for en socialdemokratisk mindretalsregering. Sundhedsvæsenet skal være bedre, mener de. Men aftalen giver ikke mange svar på hvordan.
PLUS. Den tekniske direktør for Huawei i Norden, Mads Arnbjørn Rasmussen frygter at Danmark taber i digitaliseringskapløbet, hvis ikke myndighederne sætter turbo på udrulningen af 5G
Researchers said the fruit was behind annual outbreaks of a fatal syndrome in eastern India. But local doctors say that theory can't explain all the cases.
Intracytoplasmic sperm injection (ICSI), the world's favored means of fertilization in assisted reproduction, offers no benefit over conventional in vitro fertilization in fertility treatments without a male factor indication, according to results of a large multicenter study.
Robots are expected to take over some 20 million manufacturing jobs worldwide by 2030, extending a trend of worsening social inequality while boosting overall economic output, a new study shows.
Gordon Goodwin and his wife are rediscovering their passion for bicycling in their senior years thanks to new electric-assist bikes. The electric motors provide a gentle kick, making it easier for them to pedal up hilly roads around Maine's Acadia National Park.
US semiconductor firm Micron Technology said Tuesday it has resumed some sales to Chinese technology giant Huawei despite a ban imposed by President Donald Trump on national security grounds.
Cyanide and carbon monoxide are both deadly poisons to humans, but compounds containing iron, cyanide, and carbon monoxide discovered in carbon-rich meteorites by a team of scientists at Boise State University and NASA may have helped power life on early Earth. The extraterrestrial compounds found in meteorites resemble the active site of hydrogenases, which are enzymes that provide energy to bact
Millions of acres of pine woodlands once covered a large portion of the Midwest. But as humans logged these trees and suppressed natural fires, the woodlands gave way to dense forests with thick leaf litter and tree species that were less fire-resistant, leading to more intense and unpredictable fires as well as the loss of native bird habitats.
Millions of acres of pine woodlands once covered a large portion of the Midwest. But as humans logged these trees and suppressed natural fires, the woodlands gave way to dense forests with thick leaf litter and tree species that were less fire-resistant, leading to more intense and unpredictable fires as well as the loss of native bird habitats.
By analyzing records in countries of the Amazon and Orinoco basins—which include Brazil, Venezuela, Colombia, Bolivia, Peru and Ecuador—a paper published today in Oryx—The International Journal of Conservation, categorized 85 past and present initiatives or projects that work to preserve the South American River Turtle, or charapa (Podocnemis expansa), a critically endangered species. These projec
Run, hide, fight. It has become a mantra for how to act during an active shooter situation. The idea is to escape the situation or protect oneself, and counter the gunman as a last resort.
Researchers from Brown and Columbia Universities have demonstrated previously unknown states of matter that arise in double-layer stacks of graphene, a two-dimensional nanomaterial. These new states, known as the fractional quantum Hall effect, arise from the complex interactions of electrons both within and across graphene layers.
By analyzing records in countries of the Amazon and Orinoco basins—which include Brazil, Venezuela, Colombia, Bolivia, Peru and Ecuador—a paper published today in Oryx—The International Journal of Conservation, categorized 85 past and present initiatives or projects that work to preserve the South American River Turtle, or charapa (Podocnemis expansa), a critically endangered species. These projec
Recognition of Indian women's roles in both agriculture and domestic work is key to improving household nutrition outcomes, according to new research from the University of East Anglia (UEA).
The news media is society's alarm clock – it needs to wake us up This past Saturday, I was among hundreds of activists with the group Extinction Rebellion NYC who protested outside the New York Times headquarters in midtown Manhattan to demand better coverage of the climate crisis. Protesters lay down on Eighth Avenue, staging a "die-in" to block traffic. We draped a banner the length of the Time
Scientists have created materials that shrink uniformly in all directions when heated under normal everyday conditions, using a cheap and industrially scalable process. This potentially opens up a new paradigm of thermal-expansion control that will make electronic devices more resilient to temperature changes.
A new study demonstrates, for the first time, that 'social robots' used in support sessions held in pediatric units at hospitals can lead to more positive emotions in sick children.
Yehuda Shoenfield is either a genius or a quack of autoimmunity research, depending on which side you stand in the antivax debate. He is also apparently a plagiarist, even Wikipedia is not safe. And this is why he is now a Member of Israel Academy of Sciences.
Wheat plants' leaves repel water, which creates the perfect conditions for dew droplets to catapult off the leaves—taking pathogenic spores for the ride. Christopher Intagliata reports.
A shortage of high school physics teachers has led to teachers with little-to-no training taking over physics classrooms, reports show. This has led to additional stress and job dissatisfaction for those teachers — and a difficult learning experience for their students. But new research indicates that focused physics professional development for teachers — even those who have no prior physics tr
People who order their Buffalo wings especially spicy and sometimes find them to be too 'hot,' should choose milk to reduce the burn, according to researchers, who also suggest it does not matter if it is whole or skim.
A team of scientists collaborating across theoretical and experimental physics and computer science, have developed and trained a new Machine Learning (ML) technique, to finally understand how electrons behave in important quantum materials.
Scientists have created materials that shrink uniformly in all directions when heated under normal everyday conditions, using a cheap and industrially scalable process. This potentially opens up a new paradigm of thermal-expansion control that will make electronic devices more resilient to temperature changes.
As Asia and Europe battle African swine fever outbreaks, new research shows how farmers' risk attitudes affect the spread of infectious animal diseases and offers a first-of-its kind model for testing disease control and prevention strategies. Getting just 10% of risk tolerant farmers to adopt biosecurity measures resulted in a significant reduction of disease, but keeping the disease under contro
A new study that sheds light on how the brain processes language could lead to a better understanding of autism spectrum disorder, schizophrenia and other neurodevelopmental conditions.
Better care and more research into treatments for people experiencing a first manic episode are urgently needed, according to researchers. The study describes patchy and inconsistent care, widespread failure to detect bipolar disorder early enough, and a lack of guidance on how to treat people experiencing mania for the first time.
For the first time, scientists can record cells communicating in real time, opening the floodgates for new developments in cell therapy and other areas within cell biology.
Time-saving method makes it possible to profile gene regulation in tens of thousands of individual human cells in a single day. Approach combines microfluidics and novel software to scale up single-cell ATAC-seq, which identifies parts of the tightly packaged genome that are more open and accessible to regulatory proteins. Profiling individual cells can clarify how genes function – in which specif
For the first time, scientists can record cells communicating in real time, opening the floodgates for new developments in cell therapy and other areas within cell biology.
Each year during the holiday season, soup kitchens and charities alike are flooded with offers to volunteer. But is a donation of your time most beneficial to the charity, or would a financial contribution provide more value? Researchers wondered what drives volunteering — especially when a monetary donation would have more impact.
Researchers have demonstrated previously unknown states of matter that arise in double-layer stacks of graphene, a two-dimensional nanomaterial. These new states, known as the fractional quantum Hall effect, arise from the complex interactions of electrons both within and across graphene layers.
By analyzing records in countries of the Amazon and Orinoco basins — which include Brazil, Venezuela, Colombia, Bolivia, Peru and Ecuador — researchers categorized 85 past and present initiatives or projects that work to preserve the South American River Turtle, or charapa (Podocnemis expansa), a critically endangered species. These projects are protecting more than 147,000 female turtles across
When the South African dung beetle rolls its dung ball through the savannah, it must know the way as precisely as possible. Scientists have now discovered that it does not orient itself solely on the position of the sun.
Researchers have discovered a secret sauce in the brain's vascular system that preserves the neurons needed to keep dementia and other diseases at bay.
A Purdue University researcher and students created a computer model, based on the 1999 shooting at Columbine High School, which looks at what happens to victims caught in shooter situations to provide better training for schools and other organizations.
A simple set of decision-support tools combined with institutional buy-in can help increase the number of cancer patients who engage in treatment to help them quit tobacco, data from researchers in the Abramson Cancer Center at the University of Pennsylvania show.
A team of researchers from the CNRS, INRA, and the University of La Rochelle is now the first to have demonstrated that organic farming benefits honeybee colonies, especially when food is scarce in late spring. The scientists analyzed six years of data collected through a unique system for monitoring domesticated bees that is unparalleled in Europe. Their findings are published in the Journal of A
The odds of child physical abuse vs. accidental injury increased substantially when the caregiver at the time of injury was male, according to a new study published in The Journal of Pediatrics.
Bystanders will intervene in nine out of 10 public fights to help victims of aggression and violence reveals the largest ever study of real-life conflicts captured by CCTV.The findings overturn the impression of the 'walk on by society' where victims are ignored by bystanders.The consistent helping rate found across different national and urban contexts supports earlier research 'suggesting that t
Wheat plants' leaves repel water, which creates the perfect conditions for dew droplets to catapult off the leaves—taking pathogenic spores for the ride. Christopher Intagliata reports. — Read more on ScientificAmerican.com
A psychologists who study relationship choice have found that when it comes to picking a canine companion, what people say they want in a dog isn't always in line with what they choose.
When you think of national parks, you might picture the vast plateaus of the Grand Canyon, the intricate wetlands of the Everglades, or the inspiring viewscapes of the Grand Tetons. You probably don't envision 100 million pounds of mashed water bottles, barbecue-smudged paper plates, and crumpled coffee cups — but that is the staggering quantity of garbage that is generated in our National Parks
En opfordring i forbindelse med et projekt under Københavns Kommune har sat følsomme persondata på spil og kan være i strid med GDPR, vurderer jurist. Kommunen kalder nu selv forløbet for »en klar fejl.«
Wheat plants' leaves repel water, which creates the perfect conditions for dew droplets to catapult off the leaves—taking pathogenic spores for the ride. Christopher Intagliata reports. — Read more on ScientificAmerican.com
The US adaptation of the Ricky Gervais-led British original remains one of the most popular series on Netflix, despite coming to an end with its 9th season back in 2013. The documentary style …
The strength of the health benefits that come with living in a walkable area depend on other environmental factors, like air pollution. (Deposit Photos/) Living in a walkable neighborhood, where people can easily get to the store, to work, and around town under their own power, is usually associated with better health—studies show that those neighborhoods are associated with increased physical ac
The new Photos app offers more robust options when it comes to image editing and organization. (Apple/) Just a few weeks ago at its developers' conference , Apple announced the upcoming iOS 13 and iPadOS 13 updates. It was a big moment within the Apple universe because it officially separates the iPhone and the iPad into different, albeit similar software worlds. Now, both operating systems have
Author and self-described fossil fanatic Brian Switek talks about his new book Skeleton Keys: The Secret Life of Bone. — Read more on ScientificAmerican.com
Biomedical engineers report having cracked the code to quickly diagnosing anti-malarial drug resistance. They are working to apply the method to help patients with HIV, tuberculosis, and a host of other diseases. One of the keys to quickly diagnosing anti-malarial drug resistance—potentially saving lives—lies in testing whole blood instead of extracting DNA, eliminating processing steps that can
Curious and curiouser. (NASA/) Methane is back in the news, but this time not in the dreadful harbinger-of-climate-doom kind of way. The New York Times reported over the weekend that NASA's Curiosity rover had stumbled upon surprisingly high methane levels in the Martian atmosphere near the Gale Crater—at least three times higher than Curiosity measured in 2013. The announcement, confirmed by NAS
Americans overestimate the future income for children from wealthy and middle-income families, but underestimate that of children from poor ones, according to a new study. The research, which appears in the journal Proceedings of the National Academy of Sciences , runs counter to popular perceptions, as well as to some previous research, that holds Americans, overall, have optimistic views of eco
The share of premature deaths in the UK linked to air pollution has dropped significantly because of action on emissions – but there is still a long way to go
Researchers are developing better, faster ways of providing human guidance to autonomous robots. They have combined two different ways of setting goals for robots into a single process, which performed better than either of its parts alone in both simulations and real-world experiments. Told to optimize for speed while racing down a track in a computer game, a car pushes the pedal to the metal… a
Enhancing cancer treatment is a 'major priority' for the UK public, which also thinks that the NHS needs more resources to provide 'excellent cancer care,' finds a new national survey led by UCL.
How the mammalian circadian clock interacts with metabolism and its possible implications in metabolic diseases are actively studied. In PNAS, Foteinou et al. (1) propose a mathematical model of the circadian clock that incorporates the metabolic sensor SIRT1 and validate it with cell experiments. Their findings shed light on conflicting…
As the mathematical model developed by Woller et al. (1) also considers the role of SIRT1 in circadian clock, we regret not citing this work. However, we feel the inferences drawn in Furlan et al.'s (2) letter conflate 2 distinct studies with disparate purposes and methods. In Foteinou et al….
Despite being the subject of intense effort and scrutiny, kinases have proven to be consistently challenging targets in inhibitor drug design. A key obstacle has been promiscuity and consequent adverse effects of drugs targeting the ATP binding site. Here we introduce an approach to controlling kinase activity by using monobodies…
Most normal and tumor cells are protected from tumor necrosis factor α (TNFα)-induced apoptosis. Here, we identify the MAP3 kinase tumor progression locus-2 (TPL2) as a player contributing to the protection of a subset of tumor cell lines. The combination of TPL2 knockdown and TNFα gives rise to a synthetic…
Small variations in the primary amino acid sequence of extracellular matrix proteins can have profound effects on the biomineralization of hard tissues. For example, a change in one amino acid within the amelogenin protein can lead to drastic changes in enamel phenotype, resulting in amelogenesis imperfecta, enamel that is defective…
The establishment of nitrogen-fixing root nodules in legume–rhizobia symbiosis requires an intricate communication between the host plant and its symbiont. We are, however, limited in our understanding of the symbiosis signaling process. In particular, how membrane-localized receptors of legumes activate signal transduction following perception of rhizobial signaling molecules has mostly…
Endoplasmic reticulum (ER) membrane junctions are formed by the dynamin-like GTPase atlastin (ATL). Deletion of ATL results in long unbranched ER tubules in cells, and mutation of human ATL1 is linked to hereditary spastic paraplegia. Here, we demonstrate that COPII formation is drastically decreased in the periphery of ATL-deleted cells….
Motion in depth (MID) can be cued by high-resolution changes in binocular disparity over time (CD), and low-resolution interocular velocity differences (IOVD). Computational differences between these two mechanisms suggest that they may be implemented in visual pathways with different spatial and temporal resolutions. Here, we used fMRI to examine how…
Bacterial conjugation systems are members of the large type IV secretion system (T4SS) superfamily. Conjugative transfer of F plasmids residing in the Enterobacteriaceae was first reported in the 1940s, yet the architecture of F plasmid-encoded transfer channel and its physical relationship with the F pilus remain unknown. We visualized F-encoded…
As an adaptation to the daily light–dark (diel) cycle, cyanobacteria exhibit diurnal rhythms of gene expression and cell cycle. The light–dark cycle also affects the life cycle of viruses (cyanophages) that infect the unicellular picocyanobacteria Prochlorococcus and Synechococcus, which are the major primary producers in the oceans. For example, the…
Endocytosis is essential to all eukaryotes, but how cargoes are selected for internalization remains poorly characterized. Extracellular cargoes are thought to be selected by transmembrane receptors that bind intracellular adaptors proteins to initiate endocytosis. Here, we report a mechanism for clathrin-mediated endocytosis (CME) of extracellular lanthanum [La(III)] cargoes, which requires…
The ability of animal cells to crawl, change their shape, and respond to applied force is due to their cytoskeleton: A dynamic, cross-linked network of actin protein filaments and myosin motors. How these building blocks assemble to give rise to cells' mechanics and behavior remains poorly understood. Using active micropost…
Loss-of-function mutations in the Wnt inhibitor secreted frizzled receptor protein 4 (SFRP4) cause Pyle's disease (OMIM 265900), a rare skeletal disorder characterized by wide metaphyses, significant thinning of cortical bone, and fragility fractures. In mice, we have shown that the cortical thinning seen in the absence of Sfrp4 is associated…
In PNAS, Naserifar and Goddard (1) report that their RexPoN water model under ambient conditions comprises a "dynamic polydisperse branched polymer," which they speculate explains the existence of the liquid–liquid critical point (LLCP) in the supercooled region. The observable they rely on to support this is the oxygen–oxygen radial distribution…
Transplanted stromal cells have demonstrated considerable promise as therapeutic agents in diverse disease settings. Paracrine signaling can be an important mediator of these therapeutic effects at the sites of acute or persistent injury and inflammation. As many stromal cell types, including bone marrow-derived stromal cells (BMSCs), display tissue-specific responses, there…
During metastasis, only a fraction of genetic diversity in a primary tumor is passed on to metastases. We calculate this fraction of transferred diversity as a function of the seeding rate between tumors. At one extreme, if a metastasis is seeded by a single cell, then it inherits only the…
The capturing of images has become one of our most universal and commonplace technologies. As a digital electronic technology, it has permanently transformed society by revolutionizing personal recording and interpersonal communication. It has also revolutionized modern science, changing the way data are obtained and expanding our ability to study complex…
Collective behavior in spatially structured groups, or biofilms, is the norm among microbes in their natural environments. Though biofilm formation has been studied for decades, tracing the mechanistic and ecological links between individual cell morphologies and the emergent features of cell groups is still in its infancy. Here we use…
The cyclic guanosine-3′,5′-monophosphate (cGMP)-dependent protein kinase (PKG) was identified >25 y ago; however, efforts to obtain a structure of the entire PKG enzyme or catalytic domain from any species have failed. In malaria parasites, cooperative activation of PKG triggers crucial developmental transitions throughout the complex life cycle. We have determined…
Despite the enormous potential shown by recent biorefineries, the current bioeconomy still encounters multifaceted challenges. To develop a sustainable biorefinery in the future, multidisciplinary research will be essential to tackle technical difficulties. Herein, we leveraged a known plant genetic engineering approach that results in aldehyde-rich lignin via down-regulation of cinnamyl…
Matter evolved under the influence of gravity from minuscule density fluctuations. Nonperturbative structure formed hierarchically over all scales and developed non-Gaussian features in the Universe, known as the cosmic web. To fully understand the structure formation of the Universe is one of the holy grails of modern astrophysics. Astrophysicists survey…
Mammals detect sound through mechanosensitive cells of the cochlear organ of Corti that rest on the basilar membrane (BM). Motions of the BM and organ of Corti have been studied at the cochlear base in various laboratory animals, and the assumption has been that the cochleas of all mammals work…
Surface plasmon resonances of metallic nanostructures offer great opportunities to guide and manipulate light on the nanoscale. In the design of novel plasmonic devices, a central topic is to clarify the intricate relationship between the resonance spectrum and the geometry of the nanostructure. Despite many advances, the design becomes quite…
Characterized by a dismal survival rate and limited response to therapy, glioblastoma (GBM) remains one of the most aggressive human malignancies. Recent studies of the role of tumor-associated macrophages (TAMs) in the progression of GBMs have demonstrated that TAMs are significant contributors to tumor growth, invasion, and therapeutic resistance. TAMs,…
Microbial conversion of aromatic compounds is an emerging and promising strategy for valorization of the plant biopolymer lignin. A critical and often rate-limiting reaction in aromatic catabolism is O-aryl-demethylation of the abundant aromatic methoxy groups in lignin to form diols, which enables subsequent oxidative aromatic ring-opening. Recently, a cytochrome P450…
Epstein−Barr virus (EBV) induces histone modifications to regulate signaling pathways involved in EBV-driven tumorigenesis. To date, the regulatory mechanisms involved are poorly understood. In this study, we show that EBV infection of epithelial cells is associated with aberrant histone modification; specifically, aberrant histone bivalent switches by reducing the transcriptional activation…
Making good decisions requires people to appropriately explore their available options and generalize what they have learned. While computational models can explain exploratory behavior in constrained laboratory tasks, it is unclear to what extent these models generalize to real-world choice problems. We investigate the factors guiding exploratory behavior in a…
Three-dimensional genome structure plays a pivotal role in gene regulation and cellular function. Single-cell analysis of genome architecture has been achieved using imaging and chromatin conformation capture methods such as Hi-C. To study variation in chromosome structure between different cell types, computational approaches are needed that can utilize sparse and…
Genomic analyses of patients with congenital heart disease (CHD) have identified significant contribution from mutations affecting cilia genes and chromatin remodeling genes; however, the mechanism(s) connecting chromatin remodeling to CHD is unknown. Histone H2B monoubiquitination (H2Bub1) is catalyzed by the RNF20 complex consisting of RNF20, RNF40, and UBE2B. Here, we…
Unsupervised learning makes manifest the underlying structure of data without curated training and specific problem definitions. However, the inference of relationships between data points is frustrated by the "curse of dimensionality" in high dimensions. Inspired by replica theory from statistical mechanics, we consider replicas of the system to tune the…
Mosquito immunity is composed of both cellular and humoral factors that provide protection from invading pathogens. Immune cells known as hemocytes, have been intricately associated with phagocytosis and innate immune signaling. However, the lack of genetic tools has limited hemocyte study despite their importance in mosquito anti-Plasmodium immunity. To address…
Vascular endothelial growth factor (VEGF) signaling in tumor cells mediated by neuropilins (NRPs) contributes to the aggressive nature of several cancers, including triple-negative breast cancer (TNBC), independently of its role in angiogenesis. Understanding the mechanisms by which VEGF–NRP signaling contributes to the phenotype of such cancers is a significant and…
We present a mechanism for the anomalous behavior of the specific heat in low-temperature amorphous solids. The analytic solution of a mean-field model belonging to the same universality class as high-dimensional glasses, the spherical perceptron, suggests that there exists a cross-over temperature above which the specific heat scales linearly with…
It is well recognized that metastasis can occur early in the course of lung adenocarcinoma (LAD) development, and yet the molecular mechanisms driving this capability of rapid metastasis remain incompletely understood. Here we reported that a long noncoding RNA, LINC00673, was up-regulated in LAD cells. Of note, we first found…
While mutations in the SNCA gene (α-synuclein [α-syn]) are causal in rare familial forms of Parkinson's disease (PD), the prevalence of α-syn aggregates in the cortices of sporadic disease cases emphasizes the need to understand the link between α-syn accumulation and disease pathogenesis. By employing a combination of human pluripotent…
Ion channel proteins control ionic flux across biological membranes through conformational changes in their transmembrane pores. An exponentially increasing number of channel structures captured in different conformational states are now being determined; however, these newly resolved structures are commonly classified as either open or closed based solely on the physical…
Walled cells of plants, fungi, and bacteria come with a large range of shapes and sizes, which are ultimately dictated by the mechanics of their cell wall. This stiff and thin polymeric layer encases the plasma membrane and protects the cells mechanically by opposing large turgor pressure derived mechanical stresses….
R-SNAREs (soluble N-ethylmaleimide–sensitive factor receptor), Q-SNAREs, and Sec1/Munc18 (SM)-family proteins are essential for membrane fusion in exocytic and endocytic trafficking. The yeast vacuolar tethering/SM complex HOPS (homotypic fusion and vacuole protein sorting) increases the fusion of membranes bearing R-SNARE to those with 3Q-SNAREs far more than it enhances their trans-SNARE…
The ubiquitin (Ub) and Ub-like (Ubl) protein-conjugation cascade is initiated by E1 enzymes that catalyze Ub/Ubl activation through C-terminal adenylation, thioester bond formation with an E1 catalytic cysteine, and thioester bond transfer to Ub/Ubl E2 conjugating enzymes. Each of these reactions is accompanied by conformational changes of the E1 domain…
The annual migration of the monarch butterfly Danaus plexippus is in peril. In an effort to aid population recovery, monarch enthusiasts across North America participate in a variety of conservation efforts, including captive rearing and release of monarch butterflies throughout the summer and autumn. However, the impact of captive breeding…
Cyanobacteria are one of the most important contributors to oceanic primary production and survive in a wide range of marine habitats. Much effort has been made to understand their ecological features, diversity, and evolution, based mainly on data from free-living cyanobacterial species. In addition, symbiosis has emerged as an important…
The ability of glioblastoma to disperse through the brain contributes to its lethality, and blocking this behavior has been an appealing therapeutic approach. Although a number of proinvasive signaling pathways are active in glioblastoma, many are redundant, so targeting one can be overcome by activating another. However, these pathways converge…
Urban scaling research finds that agglomeration effects—the higher-than-expected outputs of larger cities—follow robust "superlinear" scaling relations in cross-sectional data. But the paradigm has predictive ambitions involving the dynamic scaling of individual cities over many time points and expects parallel superlinear growth trajectories as cities' populations grow. This prediction has not…
Stroke is a major cause of serious disability due to the brain's limited capacity to regenerate damaged tissue and neuronal circuits. After ischemic injury, a multiphasic degenerative and inflammatory response is coupled with severely restricted vascular and neuronal repair, resulting in permanent functional deficits. Although clinical evidence indicates that revascularization…
The fluxes of energy, water, and carbon from terrestrial ecosystems influence the atmosphere. Land–atmosphere feedbacks can intensify extreme climate events like severe droughts and heatwaves because low soil moisture decreases both evaporation and plant transpiration and increases local temperature. Here, we combine data from a network of temperate and boreal…
Animal models of central nervous system (CNS) demyelination, including toxin-induced focal demyelination and immune-mediated demyelination through experimental autoimmune encephalomyelitis (EAE), have provided valuable insights into the mechanisms of neuroinflammation and CNS remyelination. However, the ability to track changes in transcripts, proteins, and metabolites, as well as cellular populat
BIOPHYSICS AND COMPUTATIONAL BIOLOGY Correction for "Unique transmembrane domain interactions differentially modulate integrin αvβ3 and αIIbβ3 function," by Rustem I. Litvinov, Marco Mravic, Hua Zhu, John W. Weisel, William F. DeGrado, and Joel S. Bennett, which was first published June 3, 2019; 10.1073/pnas.1904867116 (Proc. Natl. Acad. Sci. U.S.A. 116, 12295–12300)….
Piezo channels are mechanically activated ion channels that confer mechanosensitivity to a variety of different cell types. Piezos oligomerize as propeller-shaped homotrimers that are thought to locally curve the membrane into spherical domes that project into the cell. While several studies have identified domains and amino acids that control important…
Lateral root organogenesis plays an essential role in elaborating plant root system architecture. In Arabidopsis, the AP2 family transcription factor PUCHI controls cell proliferation in lateral root primordia. To identify potential targets of PUCHI, we analyzed a time course transcriptomic dataset of lateral root formation. We report that multiple genes…
Emerging evidence has established primary nephrotic syndrome (NS), including focal segmental glomerulosclerosis (FSGS), as a primary podocytopathy. Despite the underlying importance of podocyte endoplasmic reticulum (ER) stress in the pathogenesis of NS, no treatment currently targets the podocyte ER. In our monogenic podocyte ER stress-induced NS/FSGS mouse model, the podocyte…
Preimplantation genetic testing for aneuploidy (PGT-A) with trophectoderm (TE) biopsy is widely applied in in vitro fertilization (IVF) to identify aneuploid embryos. However, potential safety concerns regarding biopsy and restrictions to only those embryos suitable for biopsy pose limitations. In addition, embryo mosaicism gives rise to false positives and false…
Interoception, or the sense of the internal state of the body, is key to the adaptive regulation of our physiological needs. Recent theories contextualize interception within a predictive coding framework, according to which the brain both estimates and controls homeostatic and physiological variables, such as hunger, thirst, and effort levels,…
SOCIAL SCIENCES Correction for "Systematic assessment of the sex ratio at birth for all countries and estimation of national imbalances and regional reference levels," by Fengqing Chao, Patrick Gerland, Alex R. Cook, and Leontine Alkema, which was first published April 15, 2019; 10.1073/pnas.1812593116 (Proc. Natl. Acad. Sci. U.S.A. 116, 9303–9311)….
Wnt/Wingless (Wg) signaling controls many aspects of animal development and is deregulated in different human cancers. The transcription factor dTcf/Pangolin (Pan) is the final effector of the Wg pathway in Drosophila and has a dual role in regulating the expression of Wg target genes. In the presence of Wg, dTcf/Pan…
Scientists and inventors increasingly work in teams, raising fundamental questions about the nature of team production and making individual assessment increasingly difficult. Here we present a method for describing individual and team citation impact that both is computationally feasible and can be applied in standard, wide-scale databases. We track individuals…
South African ball-rolling dung beetles exhibit a unique orientation behavior to avoid competition for food: after forming a piece of dung into a ball, they efficiently escape with it from the dung pile along a straight-line path. To keep track of their heading, these animals use celestial cues, such as…
Early abstract reasoning has typically been characterized by a "relational shift," in which children initially focus on object features but increasingly come to interpret similarity in terms of structured relations. An alternative possibility is that this shift reflects a learned bias, rather than a typical waypoint along a universal developmental…
Birds inhabiting hot, arid regions are among the terrestrial organisms most vulnerable to climate change. The potential for increasingly frequent and intense heat waves to cause lethal dehydration and hyperthermia is well documented, but the consequences of sublethal fitness costs associated with chronic exposure to sustained hot weather remain unclear….
The human ilium is significantly shorter and broader than those of all other primates. In addition, it exhibits an anterior inferior iliac spine (AIIS) that emerges via a secondary center of ossification, which is unique to hominids (i.e., all taxa related to the human clade following their phyletic separation from…
MEDICAL SCIENCES Correction for "Prostate cancer-associated mutations in speckle-type POZ protein (SPOP) regulate steroid receptor coactivator 3 protein turnover," by Chuandong Geng, Bin He, Limei Xu, Christopher E. Barbieri, Vijay Kumar Eedunuri, Sue Anne Chew, Martin Zimmermann, Richard Bond, John Shou, Chao Li, Mirjam Blattner, David M. Lonard, Francesca Demichelis,…
Strigolactones (SLs), a group of terpenoid lactones derived from carotenoids, are plant hormones that control numerous aspects of plant development. Although the framework of SL signaling that the repressor DWARF 53 (D53) could be SL-dependently degraded via the SL receptor D14 and F-box protein D3 has been established, the downstream…
To establish infection, enteric pathogens integrate environmental cues to navigate the gastrointestinal tract (GIT) and precisely control expression of virulence determinants. During passage through the GIT, pathogens encounter relatively high levels of oxygen in the small intestine before transit to the oxygen-limited environment of the colon. However, how bacterial pathogens…
Recent research suggests that intergenerational income mobility has remained low and stable in America, but popular discourse routinely assumes that Americans are optimistic about mobility prospects in society. Examining these 2 seemingly contradictory observations requires a careful measurement of the public's perceptions of mobility. Unlike most previous work that measures…
New research may explain what scientists call "the forager population paradox." Over most of human history—150,000 years or so—the population growth rate has hovered at near zero. Yet, when we study the contemporary populations that are our best analogs for the past, they demonstrate positive growth. If population growth rates among our early ancestors matched those of subsistence populations fro
Guest commentary by Michael Tobis, a retired climate scientist. He is a software developer and science writer living in Ottawa, Ontario. A recent opinion piece by economist Ross McKitrick in the Financial Post, which attracted considerable attention in Canada, carried the provocative headline "This scientist proved climate change isn't causing extreme weather – so politicians attacked". In fact,
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Tegn abonnement på
BioNyt Videnskabens Verden (www.bionyt.dk) er Danmarks ældste populærvidenskabelige tidsskrift for naturvidenskab. Det er det eneste blad af sin art i Danmark, som er helliget international forskning inden for livsvidenskaberne.
Bladet bringer aktuelle, spændende forskningsnyheder inden for biologi, medicin og andre naturvidenskabelige områder som f.eks. klimaændringer, nanoteknologi, partikelfysik, astronomi, seksualitet, biologiske våben, ecstasy, evolutionsbiologi, kloning, fedme, søvnforskning, muligheden for liv på mars, influenzaepidemier, livets opståen osv.
Artiklerne roses for at gøre vanskeligt stof forståeligt, uden at den videnskabelige holdbarhed tabes.
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