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Tech Xplore / Holographic storage approach packs more data into the same space by encoding three properties of light
Researchers have developed a holographic data storage approach that stores and retrieves information in three dimensions by combining three properties of light—amplitude, phase and polarization. By allowing more data to be ...
Tech Xplore / AI overly affirms users asking for personal advice, study finds
In a new study published in Science, Stanford computer scientists showed that artificial intelligence large language models are overly agreeable, or sycophantic, when users solicit advice on interpersonal dilemmas. Even when ...
Phys.org / Hydrogen shell detected around Nova Persei 1901 may be a planetary nebula
Using NASA's SPHEREx space telescope, astronomers have observed remnants of the eruption of Nova Persei 1901. As a result, they detected a bipolar molecular hydrogen shell around this nova, which may be a large planetary ...
Medical Xpress / Family caregivers provide $1 trillion in annual labor, AARP says
Family caregivers provide more than $1 trillion in labor every year in the U.S., most of it unpaid, a new AARP report says. Their work forms the backbone of the nation's long-term care system and is essential to helping millions ...
Medical Xpress / Astrocytes in the amygdala may play a key role in anxiety
In a study published in Neuron, Ciaran Murphy-Royal, researcher at the Center de recherche du Center hospitalier de l'Université de Montréal (CRCHUM), and his team show that astrocyte activity in the brain's fear center, ...
Tech Xplore / Video-based AI gives robots a visual imagination
In a major step toward more adaptable and intuitive machines, Kempner Institute Investigator Yilun Du and his collaborators have unveiled a new kind of artificial intelligence system that lets robots "envision" their actions ...
Phys.org / 'Cool' detectors cut neutrino mass upper limit by an order of magnitude
Their mass is extremely low, but how light are neutrinos really? A collaboration comprising German and international research groups has optimized its experiments to determine the mass of these "ghost particles." In doing ...
Phys.org / Ancient fish used their lungs to hear underwater, scientists reveal
How did ancient fish perceive their environment in the deep sea? An international team led by scientists from the Natural History Museum of Geneva (MHNG) and the University of Geneva (UNIGE) reveals that some coelacanths—fish ...
Medical Xpress / Proteomic signatures link physical activity to lower risks of cancer, cardiometabolic diseases and multimorbidity
A new epidemiological study led by researchers at the International Agency for Research on Cancer (IARC) and the University of Regensburg, Germany, provides new clues about how physical activity helps prevent chronic diseases ...
Medical Xpress / A protein may help revive exhausted T cells in cancer immunotherapy
Immunotherapy has been one of the most transformative treatments for cancer patients in recent decades, shifting the emphasis from the broad-spectrum approach of chemotherapy to prompting the immune system's boldest warriors—its ...
Phys.org / Shell-cracking turtles defied mass extinction at the end of the Cretaceous period
The mass extinction at the boundary between the Cretaceous and Paleogene periods was catastrophic, wiping out much of life on Earth. Vertebrate groups that dominated at the time, such as dinosaurs and many large marine reptiles, ...
Phys.org / Superconducting altermagnets could carry spin without energy loss
Researchers have proposed that a newly identified class of magnetic materials could extend the zero-resistance currents of superconductors to electron spins. Publishing their calculations in Physical Review X, Kyle Monkman ...
