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Phys.org / How hibernating squirrels retain sense of touch in the cold
For most mammals, cold suppresses neural activity and diminishes the sense of touch. But the thirteen-lined ground squirrel can detect touch in conditions as low as 4°C (39°F), about as cold as the inside of a refrigerator, ...
Medical Xpress / Experimental brain implants are on the rise. What happens after the trials are over?
In 2024, Elon Musk's Neuralink put its first brain implant into a human amid doubt from scientists and allegations of animal cruelty.
Phys.org / Tiny fossils reveal big insights about ant ancestors
Two tiny ant fossils recovered in southern Saskatchewan are helping scientists better understand the evolutionary history of modern ants. Ant fossils dating from 72–56 million years ago are rare. What happened to insects ...
Tech Xplore / Why adding AI agents to a system sometimes reduces its performance
Computer scientists worldwide have been developing a wide range of artificial intelligence (AI) systems. Some of these systems rely on an individual AI agent, while others consist of multiple interacting agents that exchange ...
Phys.org / 'Soft crosslinking' strategy makes brittle, glassy plastics tougher
Glassy polymers are those whose chains become immobilized below their glass transition temperature. The immobilized chains make them hard and stiff but also brittle, causing them to fracture when stretched. One promising ...
Medical Xpress / Immune cells may have a biological memory that makes weight loss harder after obesity
According to the World Health Organization, one in eight people lives with obesity. Yet despite numerous health education programs, books, articles and treatments, many individuals still struggle to lose weight once they ...
Phys.org / A snake-headed vessel hints at a mysterious Roman cult
The ancient Romans were a deeply religious and superstitious people, worshiping dozens of cults—some official and others secretive. One of these was dedicated to Sabazios, a deity from Thrace and Phrygia (regions spanning ...
Tech Xplore / OpenAI begins rollout of new powerful AI model GPT-6 Astra
ChatGPT maker OpenAI said Thursday it would begin rolling out its newest and most powerful artificial intelligence (AI) model to select customers, saying it had built in safeguards to mitigate security risks.
Medical Xpress / 3D atomic-level snapshots reveal ketamine binds to human opioid receptors
Ketamine, a drug approved for medical use in 1970 as a short-acting anesthetic, including during the Vietnam War for battlefield surgery, is still a pharmacological mystery. For a long time, scientists knew that ketamine, ...
Medical Xpress / New insights on the optimal duration of antiplatelet therapy after stent implantation
Antiplatelet monotherapy reduced bleeding, but dual therapy provided greater cardiovascular event protection in patients at high ischemic risk who had undergone stent implantation 12 months earlier. These results, from the ...
Phys.org / AI could undermine managers' judgment unless used carefully, study warns
Generative artificial intelligence (Gen-AI) has become a routine part of working life, but overreliance on the technology may erode managers' ability to build moral insights, contextual understanding and know-how to get a ...
Phys.org / Iron helped scientists trace Earth's oxygen. Now it's telling a bigger story
For decades, scientists have studied iron preserved in ancient rocks to reconstruct how Earth's oceans and atmosphere became rich in oxygen. A new study suggests iron has recorded other major transformations too.
