ScienceDaily |
Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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Scientists discover how to turn gut bacteria into anti-aging factories11:35 Researchers found that small doses of an antibiotic can coax gut bacteria into producing a life-extending compound. In worms, this led to longer lifespans, while mice showed healthier cholesterol and insulin changes. Because the drug stays in the gut, it avoids toxic side effects. The study points to a new way of promoting health by targeting microbes rather than the body itself. Scientists discover hidden geometry that bends electrons like gravity11:35 Researchers have discovered a hidden quantum geometry inside materials that subtly steers electrons, echoing how gravity warps light in space. Once thought to exist only on paper, this effect has now been observed experimentally in a popular quantum material. The finding reveals a new way to understand and control how materials conduct electricity and interact with light. It could help power futu… A hidden bat virus is infecting humans11:35 Researchers in Bangladesh have identified a bat-borne virus, Pteropine orthoreovirus, in patients who were initially suspected of having Nipah virus but tested negative. All had recently consumed raw date-palm sap, a known pathway for bat-related infections. Genetic analysis confirmed live virus in several samples, pointing to active human infection. The finding raises concerns that dangerous bat… Scientists finally explain statin muscle pain16:52 Statins are a cornerstone of heart health, but muscle pain and weakness cause many patients to quit taking them. Scientists have now identified the precise molecular trigger behind these side effects. They found that statins jam open a critical muscle protein, causing a toxic calcium leak. The discovery could lead to safer statins that keep their life-saving benefits without the muscle damage. Jupiter’s clouds are hiding something big16:52 Jupiter’s swirling storms have concealed its true makeup for centuries, but a new model is finally peeling back the clouds. Researchers found the planet likely holds significantly more oxygen than the Sun, a key clue to how Jupiter—and the rest of the solar system—came together. The study also reveals that gases move through Jupiter’s atmosphere much more slowly than scientists once thought. Toge… Puffy baby planets reveal a missing stage of planet formation16:52 A young star called V1298 Tau is giving astronomers a front-row seat to the birth of the galaxy’s most common planets. Four massive but extremely low-density worlds orbiting the star appear to be inflated precursors of super-Earths and sub-Neptunes. By watching how the planets subtly tug on one another, scientists measured their masses and confirmed they are far puffier than expected. The system … Electric fields flip the rules of water chemistry16:52 nside electrochemical devices, strong electric fields dramatically alter how water molecules behave. New research shows that these fields speed up water dissociation not by lowering energy costs, but by increasing molecular disorder once ions form. The reaction becomes entropy-driven—exactly the opposite of what happens in ordinary water. The findings also reveal that intense fields can push wate… Weak magnetism causes big changes in a strange state of matter16:52 A strange, glowing form of matter called dusty plasma turns out to be incredibly sensitive to magnetic fields. Researchers found that even weak fields can change how tiny particles grow, simply by nudging electrons into new motions. In lab experiments, this caused nanoparticles to form faster and remain smaller. The discovery could influence everything from nanotechnology design to our understand… A quiet change in everyday foods could save thousands of lives16:52 Lowering salt in everyday foods could quietly save lives. Researchers found that modest sodium reductions in bread, packaged foods, and takeout meals could significantly reduce heart disease and stroke rates in France and the U.K. The key advantage is that people would not need to alter their eating habits at all. Small changes to the food supply could deliver large, long-term health benefits. Ancient tools in China are forcing scientists to rethink early humans31.ledna Archaeologists in central China have uncovered evidence that early humans were far more inventive than long assumed. Excavations at the Xigou site reveal advanced stone tools, including the earliest known examples of tools fitted with handles in East Asia, dating back as far as 160,000 years. These discoveries show that ancient populations in the region carefully planned, crafted, and adapted the… How gene loss and monogamy built termite mega societies31.ledna Termites did not evolve complex societies by adding new genetic features. Instead, scientists found that they became more social by shedding genes tied to competition and independence. A shift to monogamy removed the need for sperm competition, while food sharing shaped who became workers or future kings and queens. Together, these changes helped termites build colonies that can number in the mil… A breakthrough that could make ships nearly unsinkable30.ledna Researchers have found a way to make ordinary aluminum tubes float indefinitely, even when submerged for long periods or punched full of holes. By engineering the metal’s surface to repel water, the tubes trap air inside and refuse to sink, even in rough conditions. The technology could eventually be scaled up into floating platforms, ships, or even wave-powered energy systems. Late bedtimes are linked to higher heart disease risk30.ledna People who naturally stay up late may be putting their hearts under added strain as they age. A large study tracking more than 300,000 adults found that middle-aged and older night owls had poorer overall heart health and a higher risk of heart attack and stroke than those who were active earlier in the day, with the effect especially pronounced in women. Much of this elevated risk appeared to st… The early turning point when men’s heart risk accelerates30.ledna Men start developing heart disease earlier than women, with risks rising faster beginning around age 35, according to long-term research. The difference is driven mainly by coronary heart disease, not stroke or heart failure. Traditional risk factors explain only part of the gap. The findings suggest earlier screening could help catch problems before serious damage occurs. New scan spots heart disease years before symptoms30.ledna A new imaging technology called fast-RSOM lets researchers see the smallest blood vessels in the body without invasive procedures. It can detect early dysfunction in these vessels — a quiet warning sign of future heart disease — long before symptoms appear. Unlike traditional risk estimates, it measures real changes happening in the body. The portable system could one day be used in routine check… |