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Phys.org / Flipped chromosomal segments drive natural selection, Atlantic silversides study shows
When a species lives in two distinct types of habitats, individuals with traits better suited to each habitat will thrive and reproduce, naturally selecting descendants with those traits. But what about mobile aquatic species ...
Medical Xpress / Learning makes brain cells work together, not apart
When you get better at a skill—recognizing a familiar face in a crowd, spotting a typo at a glance, or anticipating the next move in a game—sensory neurons in your brain become more coordinated, sharing information rather ...
Medical Xpress / AI blood test detects early pancreatic cancer with up to 94% accuracy
A team of researchers from Taiwan has developed PanMETAI, an AI-powered platform that analyzes metabolic fingerprints in a simple blood sample to detect pancreatic cancer at its earliest stages—when treatment is most effective—achieving ...
Medical Xpress / Scientists engineer 'living eye drop' to support corneal healing
University of Pittsburgh School of Medicine researchers have developed an early-stage, experimental "living eye drop" that uses naturally occurring eye bacteria to support corneal wound healing. The proof-of-concept study, ...
Medical Xpress / Brain-clearing cells offer clues to slowing Alzheimer's disease progression
Accumulation of the protein tau in the brain is one of the hallmarks of Alzheimer's disease. In a paper published in Cell Press Blue, researchers report a previously unknown mechanism that appears to enable the buildup of ...
Medical Xpress / Overcoming ovarian cancer's resistance to immunotherapy
Cells in our immune system are best known for providing security against external invaders such as bacteria and viruses. These immune cells also guard against internal threats, including cancerous tumors. Different forms ...
Phys.org / Environmental sampling finds more poultry viruses than bird swabs in live markets
Scientists at Duke-NUS Medical School have found that viruses circulating in live poultry markets can be detected more effectively by sampling the surrounding environment than by testing individual birds. The study, published ...
Medical Xpress / Better sleep could reduce anxiety in later life
As humans grow older, their emotional stability and sleep patterns can change significantly. For instance, some past studies have found that many older adults find it harder to manage negative emotions, experience higher ...
Phys.org / Paleontologists challenge use of bone growth rings to age crocodiles, dinosaurs
Do the bones of all Nile crocodiles have the same number of growth marks as their age? And can such growth rings be counted to accurately gauge the age of these reptiles? Is this also an accurate method to use when trying ...
Phys.org / The Maya engineering paradox: Masters of water, prisoners of mercury
Under the supervision of Université de Montréal archaeology professor Christina Halperin, Ph.D. student Jean Tremblay spent six years, from 2018 to 2024, studying how the Mayan city of Ucanal managed its drinking water. ...
Medical Xpress / Former American football players show higher risk of later-life memory and mental health issues
American football is a high-octane contact sport in which repetitive head impacts (RHI) are a common sight. Researchers investigated the link between playing football and brain health, memory, and mental well-being later ...
Phys.org / Whole-genome study of koalas shows genetic diversity alone can misread extinction risk
A new study published in Science is challenging long-held assumptions about how we measure genetic risk in endangered species. Researchers analyzed whole genomes from hundreds of koalas, finding that populations previously ...
