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Tech Xplore / Popular vs. reliable sources—a blind spot in how LLMs assess information
Large language models (LLMs), the artificial intelligence (AI) systems underpinning ChatGPT and similar conversational platforms, are now used by many people worldwide to find and summarize information and generate different ...
Medical Xpress / Sleep replay of learned skills can occur independently of the hippocampus, mouse study finds
Sleep is a crucial physiological process that supports recovery, clears metabolic waste products from the brain, regulates metabolism and supports the functioning of the immune system. Sleep is also known to play a key role ...
Medical Xpress / Chromosome-protecting protein may help explain muscle repair and the rarity of muscle cancers
A protein best known for protecting the ends of chromosomes also helps muscle stem cells preserve their identity and repair damaged tissue, according to a new study from researchers at the Perelman School of Medicine at the ...
Phys.org / Indigenous territory maintains ecological stability amid agricultural expansion in the Brazilian savanna
"An island of biodiversity in a sea of monoculture": This is how a recent study characterized the Pimentel Barbosa Indigenous Territory (TIPB), located in the northeastern part of Mato Grosso state in Brazil's Central-West ...
Phys.org / 2D quantum memory device reaches single-electron limit of information storage
Most electronic memory storage devices require the ability to trap large numbers of electrons for each bit of memory. In an ideal world, however, it would take only one electron. This would reduce space requirements and power ...
Medical Xpress / CRISPR acts as commander-in-chief for backup defenses in bacteria
The main function of CRISPR-Cas systems is to defend bacteria against various threats, including viruses called bacteriophages. Researchers have continued to study all varieties of CRISPR-Cas systems (to date, two classes, ...
Phys.org / Extragalactic positron-annihilation hotspots might mean Milky Way produces far more positrons than thought
Positrons—the antimatter counterpart of electrons—are created in high-energy cosmic processes. When normal matter meets its antimatter counterpart, they annihilate, or vanish, and produce a distinctive 511 keV gamma-ray signal. ...
Phys.org / Evidence of giant rings in Venus's atmosphere uncovered in archived observations
In 2010, scientists waiting to use the William Herschel Telescope in the Canary Islands captured a brief 36 minutes of images of Venus. They were waiting for the sun to set so they could look at distant stars and dust disks ...
Medical Xpress / Somatic mutations linked to vascular damage in progeria
Hutchinson–Gilford progeria syndrome (HGPS) is a genetic disorder that causes remarkable premature aging. Most patients die during their teenage years from cardiovascular disease, but the precise mechanisms underlying vascular ...
Phys.org / Newly discovered mechanism protects DNA during cell division
Every time a cell divides, it must accurately copy and distribute its DNA between two new cells. However, in some cases, chromosomes do not fully separate, leaving behind thin strands of DNA known as DNA bridges that connect ...
Phys.org / Cretaceous beetle fossil reveals early evolution of firefly sensory and signaling systems
Scientists have discovered a remarkably well-preserved 100-million-year-old beetle fossil that provides a rare glimpse into the evolution of the intricate sensory and communication systems used by fireflies and their relatives ...
Science X / One long brisk walk may protect your brain from dementia and anxiety more than short walks put together
Exercise is well known for keeping the brain healthy, but does how we move matter as much as how much we move? In a recent study, researchers investigated whether sustained periods of physical activity offer greater long-term ...
