Optics & Photonics
Light beam 'swims' upstream through a quantum fluid by violating Newton's third law
Just as a leaf drifts along with a stream, objects in other moving fluids normally drift along with the flow. That is, unless they exert energy to move against it. Although it may be less intuitive, light waves or photons ...
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Environment
Short 'logic check' warnings may improve how people assess climate arguments
In the climate debate, people are exposed to a lot of different information and opinions. A short warning that an argument may contain a logical fallacy helps people evaluate information more critically.
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Tiny quantum nanostructures could make AI less of an energy hog
Engineers at the University of Wisconsin–Madison have designed a new type of quantum nanostructure that could enable optical neural networks. This emerging technology has the potential to make artificial intelligence systems, ...
Nanophysics
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The mosquito's transition from vegan to bloodsucker explained
Scents govern most key events in the lives of mosquitoes, and there is extensive research on their sense of smell. A new study reveals how a young female mosquito shifts from focusing entirely on nectar to seeking only blood. ...
Plants & Animals
1 hour ago
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Earth's chorus waves show limited link to rapid electron loss from radiation belts
The Van Allen radiation belts are huge, doughnut-shaped regions of highly energetic charged particles trapped by Earth's magnetosphere. These charged particles play a major role in space weather, so studying them is important ...
Planetary Sciences
2 hours ago
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What billiard balls reveal about computers and the limits of prediction
When is a billiard ball not a billiard ball? When mathematicians get involved and view a popular game as a model computer.
A single temporary stimulus may redirect cell fate without permanently altering genes
Which genes need to be controlled to guide a stem cell toward a desired cell type or modulate an immune cell's inflammatory response? A Korean research team has developed a general-purpose computational framework that identifies ...
Cell & Microbiology
2 hours ago
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Strength training causes fat cells to shrink even before weight loss, study suggests
Just seven days of strength training increased visceral fat burning in obese mice, even before any weight loss could be seen on a scale. In an experiment conducted at the State University of Campinas (UNICAMP), researchers ...
Medical Xpress
51 minutes ago
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Cocaine hijacks a brain circuit that naturally supports flexible behavior
Researchers have identified a brain circuit that normally supports flexible behavior but is recruited by cocaine to drive increasingly rigid and repetitive behavior. Published in the journal Current Biology, the findings ...
Medical Xpress
31 minutes ago
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Virtual markers help smartphone cameras reconstruct lifelike multi-person movement, from hugs to martial arts
For decades, the gold standard for capturing human movement and transferring these data into the digital world has required actors to wear suits with physical markers that cameras track in a specialized studio. While accurate, ...
Computer Sciences
1 hour ago
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The Future is Interdisciplinary
Find out how ACS can accelerate your research to keep up with the discoveries that are pushing us into science’s next frontier
Medical Xpress
Tech Xplore
OpenAI calls for US to lead global effort on AI standards
Calls for global regulation of AI are growing. What exactly could it look like?
UN AI experts warn against 'apocalyptic' rhetoric on risks
China's Alibaba unveils new powerful chip and ambitious AI model plans
A holistic approach for equitable EV infrastructure development
Real-world EV data reveal how uneven cell aging shortens battery lifespan
AI might be making women sound bad at work
Bike-sharing can make big dent in tailpipe emissions
AI safety measures failing to keep pace with technology: UN experts
Astronomers detect radio signals coming from an exoplanet for the first time
Exoplanets are exotic worlds orbiting distant stars far beyond our solar system. Ever since the first ones were discovered in the 1990s, astronomers have turned their attention to these distant worlds to understand more about ...
Engineered probiotic bacteria produce cancer drugs inside tumors
E. coli in uncooked meat can cause diarrhea and food poisoning. Scientists, however, have found a way to turn the bacterium into a delivery agent that takes drugs straight to a tumor and transforms it into a tiny cancer drug ...
AI model predicts peptide bitterness and enables novel flavor design
During the production of fermented products such as kefir, Parmesan, or mountain cheese, as well as in the production of protein powders, bitter-tasting peptides can form, which impair the taste and thus the acceptability ...
Biotechnology
2 hours ago
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Brain-mapping framework reveals shifts in information flow during pain and movie watching
In the brain, information travels among distributed networks, groups of interconnected regions that work together and contribute to specific behaviors, feelings or thoughts. To study how information travels through these ...
Largest dataset of its kind could clarify how massive stars shaped early galaxies
The more astronomers learn about the universe's earliest galaxies, the stranger they seem. Many of their surprising properties may be explained by differences between their massive stars and those in galaxies like our own ...
Astronomy
3 hours ago
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Microcrystal electron diffractometer brings hidden hydrogen into focus
Hydrogen—the lightest atom—does the heavy lifting when it comes to important chemical reactions. It can be stored and released as clean fuel, and its movements help catalysts build medicines, fertilizers and materials. One ...
Analytical Chemistry
3 hours ago
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'Invisible' inflammation in rare bowel disease may explain heightened colon cancer risk
New research from the Garvan Institute of Medical Research has revealed for the first time that two closely related bowel diseases, currently treated in the same way, are fundamentally different. The findings help explain ...
Medical Xpress
3 hours ago
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AI assistant learns from radiology reports to spot problems in abdominal scans
An abdominal CT scan packs an extraordinary amount of information into a single image, layering dozens of organs and hundreds of possible conditions. It's widely considered one of the most complex scans in medicine to read, ...
Briny 'death pools' hold clues to early life
The origins of the earliest life on Earth, prior to the rise of oxygen and photosynthesis, remain a mystery. Graveyards in brine pools at the bottom of the Red Sea may hold some answers.
Earth Sciences
4 hours ago
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Imaging agent may improve diagnoses for rare heart disease
A PET/CT radiotracer demonstrated high sensitivity and specificity for diagnosing cardiac amyloidosis, a rare disease that causes abnormal protein buildup in the heart and heart failure, according to a recent clinical trial ...
Medical Xpress
4 hours ago
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What is your dog really saying? AI is helping researchers decode animal communication
Is a dog's bark simply an expression of emotion, or does it contain specific information that humans cannot understand? Artificial intelligence (AI) can already analyze thousands of animal sounds and identify patterns that ...
Two native turtles are vying to survive in a coastal Australian river. One doesn't belong there
The Manning River helmeted turtle (Myuchelys purvisi) might just be Australia's most beautiful freshwater turtle.
Cash flow lessons help individual investors look beyond reported earnings
Why are individual investors, commonly known as "retail investors," prone to losing money in the stock market? A Lingnan University joint study of more than 4,600 Chinese and U.S. stocks finds that investors are less likely ...
From deforestation to reclamation, automated satellite tool tracks vegetation shifts around mining sites
To better assess the spatial extent of mining facilities and their environmental impact, a research team at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has developed a satellite-based remote sensing tool.
Game delays for lightning may be annoying, but they save lives—a sports meteorologist explains the risk
When nearby lightning forces officials to delay a big college football game, the backlash from fans can be fierce, especially if the sky over the stadium is still mostly blue.
How families can support children's early mathematics learning at home
For parents whose children have just entered kindergarten or first grade, new fall routines can bring excitement—and some anxiety.
Sheep grazing may pose greater threat to Scotland's wild pollinators than honey bees
Sheep grazing, rather than honey bees, could be the bigger threat to wild pollinators on Scotland's moorlands, according to a new University of Bristol-led study. The research, published in the Journal of Applied Ecology, ...
Rice bran—source for antimicrobial, biodegradable food packaging film
Rice bran is a plentiful agricultural byproduct that is often underused, but research from the Arkansas Agricultural Experiment Station shows it could be a source of biodegradable food packaging with built-in antibacterial ...
How amateur naturalists are helping scientists track what everything eats
An interdisciplinary team of researchers has created an open-source website for learning what different organisms eat and what eats them. The site—called Who Eats Whom—draws on data from a worldwide citizen science platform ...
Electrical control method tunes magnetic properties for next-generation spintronic memory
A research team led by Professor Jung-Il Hong of the Department of Physics and Chemistry at DGIST has successfully used current pulses to alter the spin configuration within a ferrimagnetic material, lowering its "compensation ...
VR boosts English vocabulary scores for students with dyslexia, pilot study finds
Virtual reality (VR) could be a new tool to help students with dyslexia learn English vocabulary more effectively than conventional instruction alone, according to a pilot study involving 30 learners published in the International ...
Antibiotic resistance research calls for tests that reflect bacteria's changing environments
The World Health Organization (WHO) regards antimicrobial resistance, including antibiotic resistance, as one of the world's major health challenges. A new fundamental understanding of antibiotic resistance could therefore ...
Day and night get equal billing on Tuesday. A guide to the fall equinox
The fall equinox is Tuesday, when light and darkness split the day evenly. It marks the beginning of fall for the Northern Hemisphere and the beginning of spring in the Southern Hemisphere.
New statistical methods could lead to more reliable research findings
How much can we really trust a measurement? And how much data do researchers need to collect to draw reliable conclusions? Mohammad Reza Seydi at Umeå University has developed and tested new statistical methods to provide ...
3I/ATLAS has an extreme taste for heavy water
More and more details about 3I/ATLAS are filtering through the scientific process as time goes on. Our third known interstellar visitor attracted the attention of some of the world's most powerful observatories when it was ...
Methane beneath the Greenland ice sheet shapes microbial life and influences the carbon cycle
A new study involving researchers from the Faculty of Science, Charles University, Prague, shows that methane concentration is among the key factors determining the composition of microbial communities at the margin of the ...
UN warns super El Niño a 'significant' threat to world health
El Niño represents a "significant" threat to global health, the United Nations warned Tuesday, as the world braces for a cycle of the climate phenomenon predicted to be the most intense on record.
The tilt in Earth's axis makes the apparent position of continents shift with the seasons
Most kids learn in elementary school that the seasons are caused by Earth rotating on a tilted axis during its yearly orbit around the sun. The substantial tilt, about 23.5 degrees, is thought to be the result of an ancient ...
Hurricane Polo strengthens to top Category 5 off Mexico
Hurricane Polo reached maximum Category 5 strength off Mexico's Pacific coast Tuesday but is expected to stay at sea, the U.S. National Hurricane Center (NHC) said.
Respiratory problems climb past 170,000 cases in haze-hit Indonesia
More than 170,000 respiratory cases were recorded in regions affected by haze in Indonesia, a Health Ministry official said Tuesday, as the country has battled for weeks to control fires that caused the toxic smog.
