Science

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 2021-04-22 20:00 

Phys.org

Study paves the way for new photosensitive materials...

Photocatalysts are useful materials, with a myriad of environmental and energy applications, including air purification, water treatment, self-cleaning surfaces, pollution-fighting paints and coatings, hydrogen production and CO2 conversion to sustainable...

 2021-04-22 19:58 

Phys.org

Machine learning model generates realistic seismic waveforms...

A new machine-learning model that generates realistic seismic waveforms will reduce manual labor and improve earthquake detection, according to a study published recently in JGR Solid Earth....

 2021-04-22 18:17 

Phys.org

Mars has right ingredients for present-day microbial life beneath its surface, study finds...

As NASA's Perseverance rover begins its search for ancient life on the surface of Mars, a new study suggests that the Martian subsurface might be a good place to look for possible present-day life on the Red Planet....

 2021-04-22 18:00 

Phys.org

Toxic masculinity: Y chromosome contributes to a shorter lifespan in male flies...

Males may have shorter lifespans than females due to repetitive sections of the Y chromosome that create toxic effects as males get older. These new findings appear in a study by Doris Bachtrog of the University of California, Berkeley published April 22 ...

 2021-04-22 18:00 

Phys.org

What does a 1.5-degree warming limit mean for China?...

As part of the Paris Agreement, nearly all countries agreed to take steps to limit the average increase in global surface temperature to less than 2 degrees C, or preferably 1.5 degrees C, compared with preindustrial levels. Since the Agreement was adopte...

 2021-04-22 17:08 

Phys.org

Using exoplanets as dark matter detectors...

In the continuing search for dark matter in our universe, scientists believe they have found a unique and powerful detector: exoplanets....

 2021-04-22 17:04 

Phys.org

Stress test finds cracks in the resistance of harmful hospital bugs...

Research has identified critical factors that enable dangerous bacteria to spread disease by surviving on surfaces in hospitals and kitchens....

 2021-04-22 17:02 

Phys.org

Transient grating spectroscopy with ultrafast X-rays...

Researchers at the Paul Scherrer Institute PSI have succeeded for the first time in looking inside materials using the method of transient grating spectroscopy with ultrafast X-rays at SwissFEL. The experiment at PSI is a milestone in observing processes ...

 2021-04-22 17:01 

Phys.org

'Stickiness' key to better diagnostics and pharmaceuticals...

The 'stickiness', or viscosity, of microscopic liquids can now be measured thousands of times faster than ever before, potentially leading to better understanding of living cells, disease diagnostics and pharmaceutical testing....

 2021-04-22 16:59 

Phys.org

California's wildfire season has lengthened, and its peak is now earlier in the year...

California's wildfire problem, fueled by a concurrence of climate change and a heightened risk of human-caused ignitions in once uninhabited areas, has been getting worse with each passing year of the 21st century....

 2021-04-22 16:58 

Phys.org

NASA's Mars helicopter makes second flight...

NASA successfully carried out a second flight on Mars on Thursday of its mini helicopter Ingenuity, a 52-second sortie that saw it climb to a height of 16 feet (five meters)....

 2021-04-22 15:07 

Phys.org

Inspired by nature, the research to develop a new load-bearing material...

Engineers have developed a new material that mimics human cartilage—the body's shock absorbing and lubrication system, and it could herald the development of a new generation of lightweight bearings....

 2021-04-22 15:05 

Phys.org

XYZeq: A better map of cell diversity...

Not all cancer cells within a tumor are created equal; nor do all immune cells (or all liver or brain cells) in your body have the same job. Much of their function depends on their location. Now, researchers at Gladstone Institutes, UC San Francisco (UCSF...

 2021-04-22 15:04 

Phys.org

Scientists propose new formation mechanism for solar coronal rain...

Rain is a common phenomenon on Earth. There is a similar phenomenon on the Sun, called coronal rain. It is related to the coronal heating and magnetic field, and plays a fundamental role in the mass cycle between the hot, tenuous corona and the cool, dens...

 2021-04-22 15:00 

Phys.org

The science of spin—asteroseismologists confirm older stars rotate faster than expected...

Stars spin faster than expected as they age according to a new study led by scientists at the University of Birmingham which uses asteroseismology to shed new light on this emerging theory....

 2021-04-22 15:00 

Phys.org

New material could better protect soldiers, athletes and motorists...

Soldiers, athletes, and motorists could lead safer lives thanks to a new process that could lead to more efficient and re-useable protection from shock and impact, explosion, and vibration, according to a new study....

 2021-04-22 15:00 

Phys.org

Political polarization: Often not as bad as we think...

As politics grows increasingly polarized, a new global study finds people often exaggerate political differences and negative feelings of those on the opposite side of the political divide, and this misperception can be reduced by informing them of the ot...

 2021-04-22 14:49 

Phys.org

Mars' changing habitability recorded by ancient dune fields in Gale crater...

Understanding whether Mars was once able to support life has been a major driving force for Mars research over the past 50 years. To decipher the planet's ancient climate and habitability, researchers look to the rock record—a physical record of...

 2021-04-22 14:45 

Phys.org

The future looks bright for infinitely recyclable plastic...

Plastics are a part of nearly every product we use on a daily basis. The average person in the U.S. generates about 100 kg of plastic waste per year, most of which goes straight to a landfill. A team led by Corinne Scown, Brett Helms, Jay Keasling, and Kr...

 2021-04-22 14:41 

Phys.org

Eliminating resistant bacteria with nanoparticles...

Novel nanoparticles developed by researchers at ETH Zurich and Empa detect multi-resistant bacteria hiding in body cells and kill them. The scientists' goal is to develop an antibacterial agent that is effective where conventional antibiotics remain i...

 2021-04-22 14:31 

Phys.org

Cultivating 'multilingual identities' in schools could improve language-learning abilities...

More young people may choose to study foreign languages to GCSE if they are encouraged to 'identify' with languages at school, rather than just learning vocabulary and grammar, new research suggests....

 2021-04-22 14:26 

Phys.org

Freeze! Executioner protein caught in the act...

A new molecular 'freeze frame' technique has allowed WEHI researchers to see key steps in how the protein MLKL kills cells....

 2021-04-22 14:18 

Phys.org

It's not just social media—misinformation can spread in scientific communication too...

When people think of misinformation, they often focus on popular and social media. But in a paper published April 12 in the Proceedings of the National Academies of Sciences, University of Washington faculty members Jevin West and Carl Bergstrom write tha...

 2021-04-22 14:16 

Phys.org

Research: Creative students sensed global catastrophe coming, had increased anxiety...

New research from the University of Kansas shows that some of the most creative adolescents may have had a sense that a global crisis was looming as far back as 2014....

 2021-04-22 14:14 

Phys.org

A novel optical physics method to measure the expansion of the universe...

Quasars are extraordinarily distant celestial objects that throw off a massive amount of light, and astrophysicists use them to probe cosmological theories....

 2021-04-22 14:14 

Phys.org

New AI tool calculates materials' stress and strain based on photos...

Isaac Newton may have met his match....

 2021-04-22 14:12 

Phys.org

Hungry fruit flies are extreme ultramarathon fliers, traveling up to six million times body length...

In 2005, an ultramarathon runner ran continuously 560 kilometers (350 miles) in 80 hours, without sleeping or stopping. This distance was roughly 324,000 times the runner's body length. Yet this extreme feat pales in comparison to the relative distanc...

 2021-04-22 13:50 

Phys.org

How a molecular machine is assembled to convert light to food for plants...

The conversion of light into chemical energy by plants and photosynthetic microorganisms is one of the most important processes in nature, removing climate-damaging CO2 from the atmosphere. Protein complexes, so-called photosystems, play the key role in t...

 2021-04-22 13:50 

Phys.org

Researchers develop chip that improves testing and tracing for COVID-19...

Jeremy Edwards, director of the Computational Genomics and Technology (CGaT) Laboratory at The University of New Mexico, and his colleagues at Centrillion Technologies in Palo Alto, Calif. and West Virginia University, have developed a chip that provides ...

 2021-04-22 13:49 

Phys.org

Dormice may have hibernated as early as 34 million years ago...

In analyzing rodent fossils, scientists funded by the Swiss National Science Foundation have come up with a novel hypothesis: hibernation was a survival strategy 34 million years ago....

 2021-04-22 13:41 

Phys.org

Cold War legacy: Investigation of cesium-137 in U.S. honey...

Work that began in 2017 as a spring break assignment for members of a William & Mary freshman seminar unexpectedly blossomed into a serious investigation into the presence of a radioactive isotope in honey in the eastern U.S....

 2021-04-22 13:30 

Phys.org

A new method to generate and control orbital angular momentum beams...

Artificial spin ices (ASIs) are magnetic metamaterials with exotic properties that are dependent on their geometries. Over the past few years, many physicists have studied these materials, as their unique properties could be advantageous for a number of a...

 2021-04-22 12:30 

Phys.org

Team improves polar direct drive fusion neutron sources for use in laser experiments...

Scientists from Lawrence Livermore National Laboratory (LLNL) and the Laboratory for Laser Energetics (LLE) are working to improve polar direct drive (PDD) neutron sources on the National Ignition Facility (NIF), the world's most energetic laser....

 2021-04-22 12:30 

Phys.org

Preparing for climate's impact on renewables...

Reducing the impacts of climate change will require substantial investments in renewable energy sources. But climate change itself could affect those renewable alternatives: changing yields for biomass crops, reduced streamflow for hydropower, diminished ...

 2021-04-22 12:29 

Phys.org

Ultra-high-energy gamma rays originate from pulsar nebulae...

The discovery that the nebulae surrounding the most powerful pulsars are pumping out ultra-high-energy gamma rays could rewrite the book about the rays' galactic origins. Pulsars are rapidly rotating, highly magnetized collapsed stars surrounded by ne...

 2021-04-22 12:29 

Phys.org

First atomic model of human telomerase constructed by electron cryo-microscopy...

Telomeres are large nucleoproteins structures that cap the ends of chromosomes in eukaryotic cells. When a cell divides, a small portion of the telomere is lost due to the inherently incomplete process of genome replication. If left unchecked, over time t...

 2021-04-22 12:28 

Phys.org

Scientists glimpse signs of a puzzling state of matter in a superconductor...

Unconventional superconductors contain a number of exotic phases of matter that are thought to play a role, for better or worse, in their ability to conduct electricity with 100% efficiency at much higher temperatures than scientists had thought possible&...

 2021-04-22 12:25 

Phys.org

NASA's Webb Telescope to study young exoplanets on the edge...

Before planets around other stars were first discovered in the 1990s, these far-flung exotic worlds lived only in the imagination of science fiction writers....

 2021-04-22 12:25 

Phys.org

Researchers report possible solutions for hard-to-recycle plastics...

Millions of tons of plastic end up in landfills every year. It's a big societal problem and an even larger environmental threat....

 2021-04-22 12:25 

Phys.org

Scientists provide new insights into the citric acid cycle...

Researchers led by Professors Ivan Berg (University of Mnster) and Wolfgang Eisenreich (TUM) report new insights into the citric acid cycle: Certain bacteria can use this central metabolic pathway "backward," but to do so, they must have very high...

 2021-04-22 12:24 

Phys.org

Flowering rooted in embryonic gene-regulation...

Researchers at the Gregor Mendel Institute of Molecular Plant Biology of the Austrian Academy of Sciences—and the John Innes Centre, Norwich, United Kingdom, have determined that gene-regulatory mechanisms at an early embryonic stage govern the flow...

 2021-04-22 12:24 

Phys.org

Breakthrough in materials discovery enables 'twistronics' for bulk systems...

Researchers from the Low Energy Electronic Systems (LEES) Interdisciplinary Research Group (IRG) at Singapore-MIT Alliance for Research and Technology (SMART), MIT's research enterprise in Singapore together with Massachusetts Institute of Technology ...

 2021-04-22 12:24 

Phys.org

Researchers create long-sought zigzag-edged carbon nanobelts...

NUS chemists have developed a strategy for the atomically precise synthesis of fully conjugated zigzag-edged carbon nanobelts (CNBs). The obtained molecule, known as octabenzo[12]cyclacene, is acknowledged as one of the first fully characterized synthetic...

 2021-04-22 09:00 

Phys.org

Know your ally: Cooperative male dolphins can tell who's on their team...

When it comes to friendships and rivalries, male dolphins know who the good team players are. New findings, published in Nature Communications by University of Bristol researchers, reveal that male dolphins form a social concept of team membership based o...

 2021-04-22 09:00 

Phys.org

Membranes unlock potential to vastly increase cell-free vaccine production...

By cracking open a cellular membrane, Northwestern University synthetic biologists have discovered a new way to increase production yields of protein-based vaccines by five-fold, significantly broadening access to potentially lifesaving medicines....

 2021-04-22 07:41 

Phys.org

In first, Perseverance Mars rover makes oxygen on another planet...

NASA's Perseverance rover keeps making history....

 2021-04-22 07:26 

Phys.org

Faster air exchange in buildings not always beneficial for coronavirus levels...

Vigorous and rapid air exchanges might not always be a good thing when it comes to addressing levels of coronavirus particles in a multiroom building, according to a new modeling study....

 2021-04-22 05:00 

Phys.org

ALMA discovers rotating infant galaxy with help of natural cosmic telescope...

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers found a rotating baby galaxy 1/100th the size of the Milky Way at a time when the universe was only 7 percent of its present age. Thanks to assistance by the gravitational lens eff...

 2021-04-21 21:05 

Phys.org

Collaborative research could help fine-tune the production of antimalarials, chemo drugs...

Much of common pharmaceutical development today is the product of laborious cycles of tweaking and optimization. In each drug, a carefully concocted formula of natural and synthetic enzymes and ingredients works together to catalyze a desired reaction. Bu...

 2021-04-21 20:55 

Phys.org

Warming seas might also look less colorful to some fish. Here's why that matters....

When marine biologist Eleanor Caves of the University of Exeter thinks back to her first scuba dives, one of the first things she recalls noticing is that colors seem off underwater. The vivid reds, oranges, purples and yellows she was used to seeing in t...

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