Researchers adapted a ciliate calcium-pulse strategy to make a protein network that contracts when calcium is released by light. The light-controlled system can repeat cycles, move tiny particles and may help synthetic drug delivery.
Photo by Nigel Hoare, Unsplash
Researchers at Brown University tested whether modern AI language models can tell if events are common, unlikely, impossible or nonsensical. They used mechanistic interpretability and found internal patterns that match human judgments in several open-source models.
A new study explains how a star that wanders too close to a supermassive black hole is stretched into a thin debris stream. Collisions and later accretion make bright flares called tidal disruption events (TDEs), which simulations now model in detail.
A study by Texas A&M researchers in Nature Communications found a two-step treatment with two growth factors can produce blastema-like tissue and rebuild bone and connective parts after amputation. The method may first reduce scarring and improve repair.
A long-term study at Ngogo in Kibale National Park found that one large chimpanzee group split into two. Members of the western group later attacked and killed many former groupmates, a result that raises questions about social behaviour.
