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Phys.org / Scientists boost mitochondria to burn more calories
Researchers have developed experimental drugs that encourage the mitochondria in our cells to work a little harder and burn more calories. The findings could open the door to new treatments for obesity and improve metabolic ...
Phys.org / Scientists chart over 140,000 DNA loops to map human chromosomes in the nucleus
One of the most detailed 3D maps of how the human chromosomes are organized and folded within a cell's nucleus is published in Nature.
Phys.org / Two ancient human species came out of Africa together, not one, suggests new study
The textbook version of the "Out of Africa" hypothesis holds that the first human species to leave the continent around 1.8 million years ago was Homo erectus. But in recent years, a debate has emerged suggesting it wasn't ...
Phys.org / Mechanism for twisted growth of plant organs discovered
From morning glories spiraling up fence posts to grape vines corkscrewing through arbors, twisted growth is a problem-solving tool found throughout the plant kingdom. Roots "do the twist" all the time, skewing hard right ...
Phys.org / The simulation hypothesis: Mathematical framework redefines what it means for one universe to simulate another
The simulation hypothesis—the idea that our universe might be an artificial construct running on some advanced alien computer—has long captured the public imagination. Yet most arguments about it rest on intuition rather ...
Phys.org / Radio black hole trio lights up in rare galaxy merger
Astronomers have confirmed the first known triple system in which all three galaxies host actively feeding, radio-bright supermassive black holes.
Tech Xplore / AI overestimates how smart people are, according to economists
Scientists at HSE University have found that current AI models, including ChatGPT and Claude, tend to overestimate the rationality of their human opponents—whether first-year undergraduate students or experienced scientists—in ...
Medical Xpress / Brain chemistry can reactivate or suppress dormant HIV
Human immunodeficiency virus (HIV) infections are still fairly common and an estimated 40 million people worldwide are currently living with this condition. The HIV virus attacks the body's immune system and thus makes those ...
Medical Xpress / Heart-brain connection: International study reveals role of vagus nerve in keeping the heart young
The secret to a healthier and "younger" heart lies in the vagus nerve. A recent study coordinated by the Sant'Anna School of Advanced Studies in Pisa and published in Science Translational Medicine has shown that preserving ...
Tech Xplore / All-optical chip achieves 100-fold speed boost over top-tier NVIDIA chips
Scientists in China have unveiled a new AI chip called LightGen that is 100 times faster and 100 times more energy efficient than NVIDIA chips, the leading supplier of AI chips worldwide. Instead of using electricity to move ...
Medical Xpress / Stimulant ADHD medications work differently than previously thought
Prescription stimulants, such as Ritalin and Adderall, are widely used to treat attention deficit hyperactivity disorder (ADHD), including in children. In the U.S., about 3.5 million children aged 3 to 17 take an ADHD medication, ...
Phys.org / An AI-based blueprint for designing catalysts across materials
Hydrogen peroxide is widely used in everyday life, from disinfectants and medical sterilization to environmental cleanup and manufacturing. Despite its importance, most hydrogen peroxide is still produced using large-scale ...
