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Phys.org / Constipation is common in astronauts—blood tests provide new answers
For astronauts in space, constipation is a well-known problem. But why this happens has long been unclear. Now, a new study from the University of Copenhagen in collaboration with NASA provides an idea of what happens in ...
Phys.org / Europe's mountain summits are warming—vegetation is responding in surprisingly different ways
Decades of climate change have not left Europe's mountain vegetation unscathed. However, the changes observed do not always match expectations. As a new international study by a research team led by researchers from the University ...
Phys.org / Cell biochemistry beyond membranes: Condensate physics reveals general rules for chemical responses
Basic biology courses teach that cells contain organelles—such as the nucleus, mitochondria and Golgi apparatus—set apart by lipid membranes to get things done. Recent cell biology research has revealed another organizational ...
Phys.org / Controlling the rotation direction of light without complex new materials
A new pathway has opened for controlling the rotation direction of light simply by changing how molecules are arranged, without having to synthesize complex new materials. Circularly polarized light is a special form of light ...
Phys.org / Cells pulse together as they grow—and malignant cells pulse the longest
Epithelial cells are the tiny shields that line and protect our bodies. In a developing embryo, epithelial cells grow, divide and move into positions to form the outer layers of our skin and the surfaces of our organs and ...
Phys.org / Wildfires have destroyed an area of protected tropical forest twice the size of Wales since 2001, study reveals
Over 4 million hectares (9.9 million acres) of protected tropical forest—an area double the size of Wales—have been lost to wildfires since 2001.
Medical Xpress / Baby conversations begin before words, with adults' immediate replies shaping speech
Before babies learn to speak, they're having actual conversations with their parents, whether the parents realize it or not. A coo. A babble. A squeal. Inevitably, an adult will make noises back or respond with baby talk: ...
Phys.org / A new way to beat jet lag? Engineered cells speed circadian adjustment
Adjusting to a new time zone or work schedule can leave the body's internal clock out of sync for days, contributing to sleep disruption, metabolic changes and other health consequences. Researchers at Rice University and ...
Tech Xplore / Built-in charge could replace chemical reagents in gold recovery from electronic waste
Recovering valuable metals from electronic waste, mining streams and industrial waste typically requires large quantities of chemical reagents. Researchers at the University of Illinois Urbana-Champaign have developed a new ...
Medical Xpress / Study reports significant reduction in postsurgical scar depth following DC microcurrent stimulation
A new pilot study reports that direct-current (DC) microcurrent stimulation was associated with a statistically significant reduction in measured postsurgical scar depth immediately following a single treatment. The article, ...
Tech Xplore / Opinion: What does life after AI look like? Cory Doctorow's guide is an outdated map, lacking answers
A "centaur" is a human helped by a machine: The person sets the direction, the machine supplies the horsepower, and together they are better than either one alone.
Phys.org / 'Starwashing': How space companies use the greenwashing playbook while causing environmental damage
From launchpads to low Earth orbit and beyond, space companies and their affiliates are deploying a familiar marketing tactic—with a new twist. In a space economy projected to reach US$1.8 trillion by 2035, they sell space ...