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Phys.org / Study questions growing international trade in critically endangered sand tiger sharks
In a new study led by University of Delaware researchers Aaron Carlisle and Ed Hale, researchers point to concerns in the international trade of sand tiger sharks, a critically endangered shark species globally, for display ...
Tech Xplore / AI agent tests whether machines can speak for patients at life's end
Across aging societies, a gap is widening: People live longer, but families grow smaller. A rising number could reach the end of life, unable to make their own medical decisions and with no next of kin or trusted friend to ...
Phys.org / A new route to electrically controlled helimagnetic structures
Advanced magnetic memory and spintronic devices rely on the ability to control magnetic states using electricity. Today, such technologies work by manipulating relatively simple magnetic structures found in ferromagnets, ...
Phys.org / Study identifies key mechanism regulating how cells use fat to generate energy
An international study by scientists at the Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) and the University of California, Los Angeles (UCLA) has identified a fundamental mechanism that regulates ...
Phys.org / Fish DNA and 10,000 crystals rewrite Colorado River's Grand Canyon origin story
For more than 150 years, scientists have debated when and how the Colorado River first carved its way through the Grand Canyon. Now, a new study led by researchers at the University of New Mexico offers evidence that the ...
Medical Xpress / Why some people are more bothered by low-frequency sounds
Some people are more sensitive to low-frequency noise, such as from ventilation systems, heat pumps, wind turbines and transformers. Why is that?
Tech Xplore / Perovskite triple-junction solar cells reach 27.3% efficiency with record 770-hour stability
Perovskite semiconductors efficiently convert sunlight into electrical energy; they are also inexpensive and extremely lightweight. A team at HZB has developed a triple-junction solar cell comprising different perovskite ...
Phys.org / The color of penguin poo: Satellites reveal global warming's impact on an iconic polar species
Scientists from a handful of universities across the country have made innovative use of satellite images from NASA to determine the diet of Antarctic Adélie penguins across the continent by studying their icy feces with ...
Medical Xpress / Sexually transmitted diarrhea spreading rapidly among some networks of gay men in the UK, study finds
Variants of sexually transmitted Shigella—a bacterial infection that causes bloody or prolonged diarrhea and can lead to severe dehydration—are causing more disease and becoming increasingly antibiotic-resistant among sections ...
Phys.org / One in four managers withholds feedback from those they supervise, even when the news is positive
Performance feedback is critical for supporting career and education decisions, but in a new study published in Management Science, a research team from the University of Portsmouth, the University of Exeter and York University ...
Medical Xpress / Ebola outbreak is 'fastest growing ever' as 600 die
The Ebola outbreak in Democratic Republic of Congo is the "fastest-growing" ever, African health authorities said Thursday, as the World Health Organization said it had killed 600 people.
Phys.org / Ancient fossil may reveal animal kingdom's earliest right-handedness at 550 million years old
Scientists have uncovered what may be the earliest evidence of "right-handedness" in the animal kingdom, dating back more than half a billion years. The discovery comes from the fossil record of Spriggina floundersi, an organism ...
