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Tech Xplore / Who does AI consider an expert? New benchmark shows bias across 22 LLMs
AI chatbots powered by large language models (LLMs) are widely used as recommender systems. While accelerating access to information, AI can also give factually incorrect responses or propagate societal biases.
Phys.org / How chromosomes find their partners
For a long time, so-called satellite DNA was considered largely worthless. Now, ETH Zurich researchers have shown in fruit flies that these repetitive sections of genetic material act as a kind of barcode, enabling the correct ...
Phys.org / Universal pattern revealed in quantum matter
When different materials transition from one phase to another, such as water coming to a boil or a magnet losing its ability to attract metals, something remarkable can happen: They begin to behave identically, following ...
Phys.org / From nuisance to new resource: Prickly pear could support fuels, foods and rural growers
Texans often view prickly pear cactus as a nuisance, but researchers with Texas A&M AgriLife Research are seeking opportunity. Susanne Talcott, Ph.D., a molecular researcher and professor in the Texas A&M Department of Food ...
Medical Xpress / New fibroblast state reveals how lung tumors may suppress immune defenses
Researchers at Columbia University have identified a previously unknown population of fibroblasts that may protect lung tumors from immune attack. The work, published in Nature Immunology, illuminates a previously unknown ...
Dialog / Blood-clotting protein may be SARS-CoV-2's hidden accomplice, helping it hide from antibodies and reach blood vessels
Fibrinogen, the abundant plasma protein best known for forming blood clots, may play a second and far less benign role during SARS-CoV-2 infection: acting as a molecular bridge that simultaneously hides the virus from neutralizing ...
Medical Xpress / Citrus compound reverses some signs of liver aging in older mice
The liver is a jack-of-all-trades and a master of all. From removing harmful substances and secreting bile to metabolizing proteins, carbohydrates and fats and managing the immune system, the liver does it all. As we age, ...
Phys.org / Interplanetary spacecraft capture a coronal mass ejection component hidden from Earth
During a coronal mass ejection (CME), the sun hurls billions of tons of magnetized plasma into space. These eruptions are among the most powerful events in the solar system, and when they are aimed toward Earth, they can ...
Medical Xpress / Chronic illness climbs closer to a former nuclear site in California
Superfund sites typically cluster in low-income communities, where 62% of households earn less than $50,000 annually. But near the Santa Susana Field Laboratory in the hills northwest of Los Angeles, people are much wealthier. ...
Phys.org / How to CT scan a 400-pound crocodile
At 61, Bill had begun showing changes in his health—decreased appetite, weight loss and abdominal bloating. But his bloodwork was normal, leaving the cause of his symptoms unknown. The next step was clear: Bill should get ...
Medical Xpress / Doctors and scientists race to understand a rising form of heart failure
Approximately 3 million people in the United States are living with a condition called heart failure with preserved ejection fraction, or HFpEF. The number of people with this form of heart failure, which is more common in ...
Medical Xpress / Can you eat too much canned tuna?
Canned tuna is a lunch box staple for many people. It's affordable, high in protein and doesn't need to be cooked, making it a nutritious and convenient option for busy days.
