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Phys.org / The persistence of gravitational wave memory
Neutron stars are ultra-dense remnants of massive stars that collapsed after supernova explosions and are made up mostly of subatomic particles with no electric charge (i.e., neutrons). When two neutron stars collide, they ...
Medical Xpress / ChatGPT Health: First independent evaluation raises safety questions
ChatGPT Health, a widely used consumer artificial intelligence (AI) tool that provides health guidance directly to the public—including advice about how urgently to seek medical care—may fail to direct users appropriately ...
Phys.org / Chemists synthesize first stable copper metallocene complex, closing a 70-year gap
Almost half a century ago, a remarkable molecule called metallocene took center stage in chemistry, earning Geoffrey Wilkinson and Ernst Otto Fischer the Nobel Prize. These organic compounds, made of a transition metal "sandwiched" ...
Phys.org / Marine plastic pollution alters octopus predator-prey encounters, study shows
More than 350,000 chemicals are used worldwide, and many find their way into the ocean through plastic pollution. As plastics accumulate in coastal waters, they continuously leach bioactive additives that can interfere with ...
Phys.org / New study highlights significant costs in large-scale mechanical thinning of forests
There is a long history of the mechanical thinning of forests in standard forestry operations. Thinning typically involves removing some 30–50% of the standing volume of trees with commercially valued logs removed via tracked ...
Phys.org / Can a chatbot be a co-author? AI helps crack a long-stalled gluon amplitude proof
Like many scientists, theoretical physicist Andrew Strominger was unimpressed with early attempts at probing ChatGPT, receiving clever-sounding answers that didn't stand up to scrutiny. So he was skeptical when a talented ...
Phys.org / How the color of a theater affects sound perception
Live music can engage more than just one sense, despite it being an auditory medium. Lighting and visual effects can enhance the listening experience, but it is unclear if they can also affect the impression of the sound. ...
Medical Xpress / Benzodiazepine use declines across the US, led by reductions in older adults
Benzodiazepine treatment declined among U.S. adults between 2018 and 2022, with the steepest drop among adults ages 56 and older, according to a new study by researchers at the Columbia University Mailman School of Public ...
Phys.org / Smarter shelf strategy can boost retail profits and cut food waste by more than 20%, study finds
Grocery retailers may not need new technology—or behavior change from shoppers—to meaningfully reduce food waste. New research in the journal Management Science finds that small operational decisions already under a retailer's ...
Medical Xpress / It's not just about the number on the scale: The hidden value of so-called 'yo-yo dieting'
So-called "yo-yo dieting" confers long-term health benefits, according to a new study by Ben-Gurion University of the Negev researchers. "Yo-yo dieting" is a pattern in which individuals lose weight through lifestyle interventions ...
Phys.org / Iron Age massacre targeted women and children, new research reveals
New research has revealed that women and children were deliberately targeted in one of the largest prehistoric mass killings discovered in Europe. Archaeological investigations at the Gomolava burial sites in northern Serbia ...
Medical Xpress / As worms and jellyfish wriggle, new AI tools track their neurons
Understanding the connection between behavior and brain cell activity is a major goal of neuroscience. To make progress, neuroscientists often choose simple, transparent lab animals because it's possible to see all their ...
