States, cities challenge Trump mileage standards rollback
203,184 articles from PhysOrg
Summer forage capabilities of tepary bean and guar in the southern great plains
Nearly two dozen states and several cities on Wednesday filed a legal challenge to the Trump administration's rollback of Obama-era mileage standards, saying science backed up the old regulations developed with the help of the nation's car makers.
Perennial warm-season grasses do not provide high-quality forage during mid to late-summer, which limits yearling stocker cattle from maintaining high rates of growth in the Southern Great Plains. This shortage has resulted in a continual search by researchers for annual legumes that can provide sufficient amounts of nutritious forage during August through September.
WEDNESDAY 27. MAY 2020
What's the secret behind the world's stickiest brands?
Historic SpaceX launch postponed because of stormy weather
Researchers from Newcastle University London, Fordham University, and University of Minho published a new paper in the Journal of Marketing that examines how some brands create "sticky" customer journeys that keep customers addicted.
Caveolin binding motif in Na/K-ATPase is required for stem cell differentiation, organogenesis in animals
The launch of a SpaceX rocket ship with two NASA astronauts on a history-making flight into orbit was called off with 16 minutes to go in the countdown Wednesday because of thunderclouds and the danger of lightning.
These tiny, self-assembling traps capture PFAS
New findings reveal the importance of the Na/K-ATPase protein in stem cell differentiation and organogenesis, in a study led by scientists at Marshall University that involves the scaffolding function of the Na/K-ATPase.
Scientists warn of 'zombie fires' in the Arctic
University at Buffalo chemists have shown that self-assembling molecular traps can be used to capture PFAS—dangerous pollutants that have contaminated drinking water supplies around the world.
2 U.S. astronauts board SpaceX rocket for historic launch
Dormant "zombie fires" scattered across the Arctic region—remnants of record blazes last year—may be coming to life after an unusually warm and dry Spring, scientists warned Wednesday.
A potential explanation for urban smog: Aerosol particle growth higher in cold climates
With thunderstorms threatening a delay, two NASA astronauts climbed aboard a SpaceX rocket ship Wednesday for liftoff on a history-making flight that was seen as a giant leap forward for the booming business of commercial space travel.
Artificial intelligence reveals mechanism for kin selection in a wild primate
The effect of nitric acid on aerosol particles in the atmosphere may offer an explanation for the smog seen engulfing cities on frosty days. Under laboratory conditions, researchers at CERN in Switzerland observed the formation of atmospheric aerosols and discovered new information on the link between nitrogen oxides originating in traffic and the energy industry, and the climate and air quality....
Initial Upper Paleolithic technology reached North China by around 41,000 years ago
More like mom or dad? Human babies always get this curious look on their face combined with the question whom the child resembles most. The answers vary depending on the degree of kinship, gender and the time of assessment. Mandrills, monkeys living in Equatorial Africa, may recognize facial features coding relatedness better than humans. Scientists at the German Primate Center—Leibniz Institute...
Exploring the use of 'stretchable' words in social media
A wave of new technology in the Late Paleolithic had reached North China by around 41,000 years ago, according to a study published May 27, 2020 in the open-access journal PLOS ONE by Fei Peng of the Minzu University of China, Beijing and colleagues.
In stressed ecosystems Jurassic dinosaurs turned to scavenging, maybe even cannibalism
An investigation of Twitter messages reveals new insights and tools for studying how people use stretched words, such as "duuuuude," "heyyyyy," or "noooooooo." Tyler Gray and colleagues at the University of Vermont in Burlington present these findings in the open-access journal PLOS ONE on May 27, 2020.
New clues to deep earthquake mystery
Among dinosaurs of ancient Colorado, scavenging and possibly cannibalism were responses to a resource-scarce environment, according to a study published May 27, 2020 in the open-access journal PLOS ONE by Stephanie Drumheller of the University of Tennessee, Knoxville, and colleagues.
Study shows erosion of ozone layer responsible for mass extinction event
A new understanding of our planet's deepest earthquakes could help unravel one of the most mysterious geophysical processes on Earth.
SpaceX crewed flight is 'go for launch': NASA chief
Researchers at the University of Southampton have shown that an extinction event 360 million years ago, that killed much of the Earth's plant and freshwater aquatic life, was caused by a brief breakdown of the ozone layer that shields the Earth from damaging ultraviolet (UV) radiation. This is a newly discovered extinction mechanism with profound implications for our warming world today.
Bob and Doug, the best friends on historic SpaceX-NASA mission
SpaceX's historic first crewed launch was set to proceed as scheduled Wednesday, NASA announced at midday, but some uncertainty remained over weather conditions just over four hours before takeoff.
Researchers use whole living cells as 'templates' to seek for bioactive molecules
Robert Behnken and Douglas Hurley, the astronauts set to launch into orbit on a SpaceX rocket Wednesday, are both former military pilots, both recruited by NASA in 2000, and both married to fellow astronauts.
Public parks guaranteeing sustainable well-being
A study performed by researchers at the Institute for Advanced Chemistry of Catalonia (IQAC) from the Spanish National Research Council (CSIC) pioneers the use of whole living cells (human lung adenocarcinoma) in dynamic combinatorial chemistry systems. This research, published in the journal Angewandte Chemie International Edition, proposes a new methodology to discover new bioactive molecules in...
Rijksmuseum given unique painting to remember virus victims
An international team led by the University of Geneva (UNIGE) has ascertained how green spaces contribute to the well-being of city-dwellers. The research shows that parks play an essential role in the well-being of individuals, regardless of their social class, and that they cannot be replaced by other venues where people meet, such as shopping centers. When these parks are closed—as during the...
SpaceX on cusp of launching astronauts, back on home turf
Amsterdam's Rijksmuseum will display a famous 16th-century painting donated to commemorate victims of the coronavirus when it re-opens next week, almost three months after closing its doors, the museum said Wednesday.
NASA chief "all in" for Tom Cruise to film on space station
With bad weather threatening a delay, two NASA astronauts suited up for the launch of a SpaceX rocket ship Wednesday on a history-making flight to the International Space Station that was seen as a giant leap forward for the booming business of commercial space travel.
Cyclones can damage even distant reefs
NASA is rolling out the International Space Station's red carpet for Tom Cruise to make a movie in orbit.
Researchers take a cue from nature to create bulletproof coatings
Big and strong cyclones can harm coral reefs as far as 1000 kilometres away from their paths, new research shows.
Airborne science discovers complex geomorphic controls on Bornean forests
Shrimp, lobsters and mushrooms may not seem like great tools for the battlefield, but three engineers from the University of Houston are using chitin—a derivative of glucose found in the cellular walls of arthropods and fungi—and 3-D printing techniques to produce high-impact multilayered coatings that can protect soldiers against bullets, lasers, toxic gas and other dangers.
Oxygen-excess oxides in Earth's mid-mantle facilitate the ascent of deep oxygen
Tropical forests contain some of the most biodiverse and dynamic ecosystems in the world. Environmental conditions such as precipitation, temperature, and soils shape the biota of the landscape. This influence is especially noticeable when comparing the towering trees found in low elevation forests to the hardier, shorter ones found at the top of tropical mountains. Together, these factors create...
Extraction of skin interstitial fluid using microneedle patches
Subduction of hydrous materials imposes great influence on the structure, dynamics, and evolution of our planet. However, it is largely unclear how subducting slabs chemically interact with the middle mantle. Recently, an oxygen-excess phase (Mg,Fe)2O3+δ was discovered under conditions similar to the Earth's middle mantle (~1000-2000 km) by a team of scientists from the Center of High Pressure...
Study uncovers gender roles in physics lab courses
Interstitial fluid is a major component of the liquid environment in the body and fills the spaces between the body's cells. In contrast, blood circulates only within the circulatory vessels of the body and is composed of blood cells and the liquid part of the blood, plasma. Both fluids contain special components called biomarkers, which are valuable indicators of bodily health. These biomarkers...
A (much) earlier birth date for tectonic plates
A robust body of research examines and addresses gender discrepancies in many fields, but physics is not one of them, Cornell researchers have found.
Under pressure, black holes feast
Yale geophysicists reported that Earth's ever-shifting, underground network of tectonic plates was firmly in place more than 4 billion years ago—at least a billion years earlier than scientists generally thought.
Avalanche photodiode breaks performance record for LiDAR receivers
A new, Yale-led study shows that some supermassive black holes actually thrive under pressure.
Tuning the surface gives variations to metal foils
Electrical and computer engineers at the University of Virginia and University of Texas-Austin have developed an avalanche photodiode that achieved record performance and has the potential to transform next generation night-vision imaging and Light Detection and Ranging (LiDAR) receivers. For LiDAR, the team's low-noise, two-micrometer avalanche photodiode enables higher-power operation that is...
Researchers examine climate change perception among specialty-crop producers
Just as cloning in biology allows for the creation of one or more replicas of the exact same genes, seeded growth in chemistry can produce a very large metal foil with the exact same surface texture as that of a seeded one. Seeded growth is very popular in synthesizing three-dimensional (3-D) single crystals: 3-D crystals are always grown into the same shapes, just as salts are invariably cubic...
ADHD: Genomic analysis in samples of Neanderthals and modern humans
Farmers whose operations have been impacted negatively by changing precipitation patterns—either too much or not enough water—are more likely to acknowledge the link between extreme weather conditions and climate change.
NASA-NOAA satellite sees Tropical Storm Bertha organizing
The frequency of genetic variants associated with attention-deficit/hyperactivity disorder (ADHD) has decreased progressively in the evolutionary human lineage from the Palaeolithic to nowadays, according to a study published in the journal Scientific Reports.
The relationships between forests, deforestation and infectious disease emergence
The second tropical storm of the North Atlantic Ocean hurricane season has formed off the coast of South Carolina. NASA-NOAA's Suomi NPP satellite provided forecasters with a visible image of Tropical Storm Bertha as it was organizing.
How seasonal allergies affect your pet
The global COVID-19 pandemic has shed light on the importance of certain previously little-studied scientific areas such as the relationships between ecosystems, their biodiversity and the emergence of new infectious diseases. Humans are making increasing use of their environment and so they are more exposed to certain microbes lurking in the shadows, a situation that may heighten the risk of new...
Medicinal chemistry breakthrough could lead to better pharmaceuticals
With an uptick in pollen comes the torturous sneezing and watery eyes. Pets get seasonal allergies, too, but they exhibit discomfort in different ways.
New type of coupled electronic-structural waves discovered in magnetite
Medications are developed to work well for most people, but those whose genetic makeup causes them to metabolize medicine too quickly often need higher doses of the drugs they take in order for them to be effective. For others, the metabolism process can create toxic byproducts, often leading to unpleasant side effects.
Researchers trigger enzymes with light
An international team of scientists uncovered exotic quantum properties hidden in magnetite, the oldest magnetic material known to mankind. The study reveals the existence of low-energy waves that indicate the important role of electronic interactions with the crystal lattice. This is another step toward fully understanding the metal-insulator phase transition mechanism in magnetite, and in...
Circadian oscillation of a cyanobacterium doesn't need all three Kai proteins to keep going
Enzymes are the central drivers for biochemical metabolic processes in every living cell, enabling reactions to take place efficiently. It is this ability that makes them useful as catalysts in biotechnology, for example, to create chemical products such as pharmaceutics. A topic that is currently being widely discussed is photoinduced catalysis, in which researchers harness the ability to start...
Human activity threatens billions of years of evolutionary history
Circadian rhythms are driven by a highly autonomous, self-sustaining circadian clock within cells, telling us when to sleep or wake up in a 24-hour cycle.
The costly collateral damage from Elon Musk's Starlink satellite fleet
A ZSL study published in Nature Communications today maps the evolutionary history of the world's terrestrial vertebrates—amphibians, birds, mammals and reptiles—for the first time, exploring how areas with large concentrations of evolutionarily distinct and threatened species are being impacted by our ever-increasing 'human footprint'.
Researchers date age of the oldest-known forest in West Junggar region, China
A colossal chess game of immense consequences is being fought in outer space, right now. On March 18 and April 22 2020, two rockets from SpaceX, owned by billionaire Elon Musk, each put 60 satellites into orbit. Those launches are but the sixth and seventh in a series intended to rapidly make 1,584 satellites available.
Safeguarding the source of three of Asia's great rivers
As one of the five major extinction events in Earth history, the Frasnian-Famennian boundary (FFB) crisis caused dramatic reductions in marine and terrestrial diversity.
New approach to metabolomics research could prove game changer
It is official. Everything is on track for the establishment of the Three-Rivers-Source National Park (TRSNP) in China, which—as its name suggests—protects the source of three of Asia's greatest rivers: the Yangtze, Yellow and Lancang-Mekong rivers.
Youth support critical to battle COVID-19-related employment challenges
Accurate identification of metabolites, and other small chemicals, in biological and environmental samples has historically fallen short when using traditional methods. Conventional tactics rely on pure reference compounds, called standards, to recognize the same molecules in complex samples. These approaches are limited by the availability of the pure chemicals that are used as the standards.
Researchers conduct research to better understand why young adults choose to move to rural Montana
Researchers from The University of Western Australia's Centre for Social Impact say supporting young people is more important now than ever, highlighting the long-term impact on youth unemployment as the result of shutdowns and restrictions from COVID-19.
Quantum simulators for gauge theories
It's common to hear about young adults choosing not to live in rural Montana, but what often goes undiscussed are the reasons young adults do choose to move to rural parts of the state, according to Montana State University researcher Sarah Schmitt-Wilson.
Higher education system faces the inequities COVID-19 exposes
To simulate in a laboratory what happens in particle accelerators has been an ambitious goal in the study of the fundamental forces of nature pursued by high-energy physicists for many years. Now, thanks to research conducted by the groups of statistical physics of SISSA—Scuola Internazionale Superiore di Studi Avanzati and the "Abdus Salam" International Centre for Theoretical Physics (ICTP),...
The COVID-19 pandemic has created a crisis across higher education, for both institutions and learners. But these new challenges are coming to rest on old inequalities that kept many low and middle-income Americans from attending college or earning a degree.