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Phys.org / Corals sleep like us, but their symbionts never rest
Sleep is essential for much of the animal kingdom. During the night, neuron and tissue repair mechanisms are activated to aid recovery from daily activity. This is risky: organisms that sleep are more vulnerable to predators. ...
Tech Xplore / Underwater 3D printing may reshape maritime concrete construction
Since it was invented in the 1980s, 3D printing has moved from the laboratory to the factory, the home and even outer space.
Phys.org / Study finds imported ozone blunted Europe, US gains from NOx cuts
In North America and Europe, emissions of ozone precursors such as nitrogen oxides (NOx) and volatile organic compounds (VOCs) declined by half between 2000 and 2018. However, the ozone content of the air—and thus the risk ...
Phys.org / Warming weakens natural enemies of insects, new research shows
A warming climate is disrupting the delicate balance of nature. An international team of scientists led by entomologists from the Biology Center of the Czech Academy of Sciences has found that higher temperatures significantly ...
Phys.org / When Toronto paused for COVID, a key 'forever chemical' rapidly declined
A new study out of York University has found that the amount of atmospheric trifluoroacetic acid (TFA), the tiniest forever chemical, significantly declined in Toronto during COVID in 2020, which researchers say is good news ...
Phys.org / Biodegradable polymers used to develop eco-friendly, high-performance gas sensors
Air pollutants like nitrogen dioxide (NO2), primarily produced during fossil fuel combustion, pose a serious concern for human health, contributing to respiratory diseases like pulmonary edema, bronchitis, and asthma. Effective ...
Phys.org / How starfish control tube feet without a central nervous system or brain
Starfish, also known as sea stars, are equipped with an almost alien-like anatomy. Despite lacking a brain, blood, and central nervous system, these odd creatures still have locomotive abilities. The structure of their many ...
Phys.org / 443-million-year-old fossils reveal early vertebrate eyes
Scientists analyzing 443-million-year-old Scottish fossils have uncovered the early evidence that some of the first groups of vertebrates possessed surprisingly advanced eyes and traces of bone, reshaping our understanding ...
Phys.org / Another Arctic blast bears down on US as snow cleanup drags on
Another blast of Arctic air was set to spread across much of the United States from Thursday night, even as local authorities struggled to dig out from mounds of snow and ice days after a giant storm passed.
Phys.org / Framework sets new benchmarks for 3D atom maps in amorphous materials
Researchers at the California NanoSystems Institute at UCLA published a step-by-step framework for determining the three-dimensional positions and elemental identities of atoms in amorphous materials. These solids, such as ...
Phys.org / A new three-way single step rearrangement enables precise ring editing
A new three-way bond-breaking and making mechanism makes the synthesis of five-membered rings easier than before.
Phys.org / Cross-border pollution tracking reveals unequal distribution of risk and responsibility
Microscopic airborne particles known as PM2.5 contribute to 100,000 premature deaths in the United States each year. A new University of Notre Dame study finds that 40% of these deaths can be attributed to pollution that ...