אתר: Phys | חדשות האינטרנט

כתבות אחרונות מאתר 'Phys'

Toward experiment-guided AlphaFold: Researchers overcome AI tool's single-conformation limitation‎

The AI-based program AlphaFold predicts a protein's 3D structure with remarkable accuracy. However, it tends to reduce heterogeneous structures to a single dominant conformation, or shape, and overlooks experimental conditions that can alter local structure. Researchers at the Institute of Science and Technology Austria (ISTA) and international collaborators have now developed a way to guide AlphaFold with experimental data. Their approach, published in Nature Biotechnology, paves the way for improved future predictive models.

12:22

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The order of species loss alters how grasslands maintain stability, study finds‎

Grasslands account for roughly 40% of terrestrial ecosystems and are paramount to global food security. Wild grasslands provide food for livestock and habitat for pollinators and act as a carbon sink in the era of climate change. Maintaining the health of native grasslands is a critical component of protecting the human food supply and sustaining biodiversity in the face of rising global temperatures and changes in weather patterns.

07:25

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The oldest evidence of mourning rituals reveals Paleolithic communities grieved like we do‎

Roughly 27,500 years ago, a 15-year-old boy was brutally mauled by a bear in Arene Candide in what is now Liguria, Italy. The attack tore through his jaw, neck and left shoulder. He was dying, but he was not alone in his final moments.

03:40

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Lost megalodon vertebrae resurface, confirming 80-foot size estimate‎

An associated set of gigantic vertebrae belonging to the iconic extinct megalodon, or megatooth shark, that had been missing in action since the 1980s was discovered, providing new information about the shark's lifestyle. Two Museum of Southern Jutland staff members, Mette Elstrup and Trine Sørensen, and a researcher at Aarhus University, Henrik Lauridsen, teamed up with a scientist in the United States and another in Australia and took a renewed look at a once-lost vertebral specimen of Otodus megalodon, the fossil shark that lived nearly worldwide about 15 million to 3.6 million years ago.

03:40

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