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Phys.org / Physicists have measured 'negative time' in the lab
As Homer tells us, Odysseus made an epic journey, against the odds, from Troy to his home in Ithaca. He visited many lands, but mostly dwelt with the nymph Calypso on her island. We can imagine that his wife, Penelope, would ...
Medical Xpress / Delays in visa program threaten doctor placements in underserved areas
Hundreds of foreign doctors about to complete training in the U.S. will have to leave the country if the federal government doesn't rapidly process their visa waiver applications, which have been languishing since the fall ...
Phys.org / Medieval jaw reveals Scotland's first known dental bridge made from 20-carat gold
Without good dental care, teeth tend to suffer. An abundance of archaeological evidence has shown that poor oral health was common throughout history. And unsurprisingly, there have been many attempts at dental restoration ...
Phys.org / Indigenous Andeans have a digestive superpower—and it may be linked to potatoes
Indigenous people of the Andes were the first to domesticate the potato, making the starch-rich crop a dietary staple for this high-altitude population long before it spread to the rest of the world. Today, their descendants ...
Phys.org / Almost all plant-based meat alternatives contain mycotoxins, new research finds
New research into plant-based food and drinks has found a prevalence of mycotoxins—naturally occurring poisonous compounds produced by fungi—in hundreds of vegetarian and vegan products. A total of 212 plant-based meat alternatives ...
Phys.org / Frozen-in gravity: A new way to understand the evolution of spacetime dynamics
The concept of spacetime, first described in Einstein's theory of general relativity, has since been widely studied by many physicists worldwide. Spacetime is described mathematically as a four-dimensional (4D) continuum ...
Phys.org / Archaeologists reveal secrets of prehistoric human-made island
Archaeologists from the University of Southampton have excavated and recorded a large timber platform hidden beneath what today appears to be a stone-built island, located in a Scottish loch. They used a technique called ...
Medical Xpress / Inside the brains of 800 incarcerated men: High psychopathy linked to expanded brain surface area
People with high levels of psychopathic tendencies are often incapable of feeling empathy for other people. From a brain science perspective, empathy isn't a single emotion but a multi-part neural process. It involves brain ...
Medical Xpress / One dose of psilocybin changes the human brain, leading to higher entropy
Researchers at UC San Francisco and Imperial College London have shown that a single dose of psilocybin, the psychedelic compound found in magic mushrooms, causes likely anatomical brain changes that last for up to a month ...
Phys.org / Small talk shapes big trends: Physics predicts how language patterns spread
A new model to predict how language changes over time has been developed by a statistical physicist at the University of Portsmouth. The model is a step towards understanding the "statistical physics of language," a scientific ...
Phys.org / Why are mountain forests in Mexico and Central America hotspots for oak trees? Study shows most definitive answer yet
The mountains of Mexico and Central America harbor some of the greatest biodiversity of oak trees worldwide, and a landmark study conducted by The Morton Arboretum with U.S. and Mexican collaborators provides the most definitive ...
Science X / The root of the problem: Ancient trees may have grown their roots backwards
Secrets about how giant trees grew in reverse can be found in fossil imprints of their roots. Micro-CT scanning shows that the roots were growing tip-to-tail like shoots.
