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Phys.org / 'Negative viscosity' helps propel groups of migrating cells, study finds
The cells in our bodies move in groups during biological processes such as wound healing and tissue development—but because of resistance, or viscosity, those cells can't just neatly glide past each other.
Medical Xpress / Unveiling schizophrenia's neural and mental signatures with machine learning
Schizophrenia is a severe and often highly debilitating psychiatric disorder characterized by distorted emotions, thinking patterns and altered perceptions of reality, as well as mental impairments. This disorder typically ...
Medical Xpress / Gut-derived metabolite hippuric acid 'turns up' immune inflammation, study finds
Scientists at The Wistar Institute have identified a previously overlooked mediator in the body's response to life-threatening infections: hippuric acid, a metabolite produced when gut bacteria break down polyphenols from ...
Phys.org / AI enables a who's who of brown bears in Alaska
A team of scientists from EPFL and Alaska Pacific University has developed an AI program that can recognize individual bears in the wild, despite the substantial changes that occur in their appearance over the summer season. ...
Phys.org / 2D discrete time crystals realized on a quantum computer for the first time
Physical systems become inherently more complicated and difficult to produce in a lab as the number of dimensions they exist in increases—even more so in quantum systems. While discrete time crystals (DTCs) had been previously ...
Phys.org / The first headbutting paravian: Bird-like dinosaur likely used thick skull to win over mates
Whether it's digging up weathered bones from a paleontological site or reexamining forgotten trays in museum and university collections, the study of dinosaurs still throws up something new.
Phys.org / Superfluids are supposed to flow indefinitely. Physicists just watched one stop moving
Ordinary matter, when cooled, transitions from a gas into a liquid. Cool it further still, and it freezes into a solid. Quantum matter, however, can behave very differently. In the early 20th century, researchers discovered ...
Medical Xpress / Gut bacteria may tip the balance between feeding tumors and fueling immunity
A new study reveals how bacteria in the gut can help determine whether the amino acid asparagine from the diet will feed tumor growth or activate immune cells against the cancer, according to researchers at Weill Cornell ...
Phys.org / Cuttlefish use polarized light to create a dramatic mating display invisible to humans
Many organisms leverage showy colors for attracting mates. Because color is a property of light (determined by its wavelength), it is easy for humans to see how these colors are used in animal courting rituals. Less obvious ...
Phys.org / How a broken DNA repair tool accelerates aging
Although DNA is tightly packed and protected within the cell nucleus, it is constantly threatened by damage from normal metabolic processes or external stressors such as radiation or chemical substances. To counteract this, ...
Medical Xpress / Procrastination in adulthood linked to brain development during adolescence
Procrastination, the tendency to unnecessarily delay or put off tasks even if this will have negative consequences, is a common behavior for many people. While occasionally delaying or putting off bothersome tasks is not ...
Medical Xpress / Engineered micro scaffolds show promise for helping people recover from severe muscle loss
When a car accident or athletic injury destroys more than 20% of a muscle's mass, the body faces a problem it often can't heal fully on its own. Without intervention, scar tissue fills the injury site and can leave patients ...
