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Medical Xpress / New study finds a missing link in how the brain regulates appetite
When the stomach is full, how does the brain know to stop eating? Scientists long assumed the answer lies mainly with neurons, the brain's primary signaling cells. But a new study published in the Proceedings of the National ...
Tech Xplore / Latest Anthropic AI model finds cracks in software defenses
Anthropic on Tuesday said its yet-to-be-released artificial intelligence model called Claude Mythos has proven keenly adept at exposing software weaknesses.
Phys.org / Phengite identified as key carrier of halogens into Earth's deep mantle
Surface volatiles—chemical substances that easily become gases or fluids at relatively low temperatures and pressures—are transported into Earth through subduction zones, with some being transported into the deep mantle and ...
Medical Xpress / Long-term excess weight, not one-time BMI, can better predict cardiovascular risk
Obesity is a known risk factor for cardiovascular disease, but people's weights can shift over time, and little is known about the cumulative impact of excess weight. New research from investigators at Mass General Brigham ...
Tech Xplore / Explainability is a must for older adults to trust AI, study shows
Voice-activated, conversational artificial intelligence (AI) agents must provide clear explanations for their suggestions, or older adults aren't likely to trust them. That's one of the main findings from a study by AI Caring ...
Medical Xpress / Lab-grown pineal gland organoids produce melatonin, offering a new sleep model
Organoids are miniature, simplified versions of an organ. Over the past two decades, scientists have developed them for the gut, lung, liver, mammary gland, brain, and more. Now, researchers at Yale School of Medicine (YSM) ...
Phys.org / 3D-printed 'spanlastics' could change how cancer drugs reach tumors
University of Mississippi research offers hope that cancer drug therapies packaged in 3D-printed carriers could deliver medication directly to tumors while reducing many of the side effects that cancer patients endure. In ...
Phys.org / 3D microscopy reveals how a tick-borne virus reshapes human cells to replicate
Researchers at Umeå University show how tick-borne viruses remodel human cells into virus factories, using an advanced microscopy method. The findings provide new insight into how the virus replicates and matures, knowledge ...
Phys.org / A layered approach sharpens brain signals in optical imaging
Near-infrared spectroscopy, or fNIRS, offers a way to monitor brain activity without surgery or radiation by tracking changes in blood flow and oxygenation. Light sources placed on the scalp send near-infrared light into ...
Medical Xpress / Fixating on a 'magic number' of childcare hours misses what's most important for kids' development
Families with kids juggling full-time work may have been alarmed by media reporting this week, suggesting "too much" time in early childhood education and care could harm their child's development.
Phys.org / Tech can enable cross-species experiences, new research suggests
Giving lemurs the chance to use technology to share control of sensory experiences with zoo visitors can help create meaningful connections between humans and animals, new research suggests.
Medical Xpress / A 'wake-up call' from leading sleep scientists: Nighttime warming threatens the sleep of billions
As the world heats up, nights are warming faster than days where most people live—and this ambient heat affects how well and how long people sleep. A new article by eminent sleep scientists, including the presidents of the ...
