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ScienceDaily

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Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...

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https://www.sciencedaily.com

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Technology → Science

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10,2 položek/den

A hidden pollutant is changing how the world's forests breathe

17:09
A massive global analysis found that nitrogen pollution can either speed up or dramatically slow the natural "breathing" of forest soils, depending on the ecosystem's condition. The results reveal hidden tipping points that could affect how forests store carbon and cope with climate change.

The secret underground system keeping the Grand Canyon alive

17:09
Scientists are venturing into the Grand Canyon’s hidden cave networks to solve a mystery: how snowmelt travels underground to supply the park’s vital springs. Their discoveries could help protect the canyon’s water from drought, contamination, and other growing threats.

Scientists discover gut bacteria that may help protect against autism and ADHD

17:09
A major study suggests that some of the groundwork for brain development may be shaped before birth through a surprising partnership between a baby’s genes and gut microbes. Researchers found that epigenetic changes present at birth can influence how the gut microbiome develops during the first year of life, and certain combinations were linked to early signs of autism and ADHD by age three.

A single protein may be holding back CAR T cancer therapy

17:09
A newly identified protein may be one of the biggest obstacles holding CAR T-cell therapy back. Researchers found that NFIL3 causes these engineered immune cells to become exhausted and lose their cancer-fighting power over time. When NFIL3 was disabled, the cells remained stronger for longer and controlled tumors more effectively in animal models.

This blood-feeding fly sacrifices its sight after finding a host

17:09
Deer keds rely on flight and vision to find a host, but everything changes once they land. After shedding their wings forever, these parasites reduce the activity of key vision-related genes by about half. Scientists believe they are effectively trading sharp eyesight for extra energy that can be used for feeding and reproduction.

A stellar “Rosetta stone” reveals the source of mysterious cosmic signals

13:41
Astronomers have finally cracked the mystery behind a strange class of repeating cosmic signals that has baffled scientists for years. Using Australia’s ASKAP radio telescope, researchers traced the bursts to a rare stellar duo in which a dense white dwarf is relentlessly siphoning material from a nearby red dwarf companion. As the stolen matter spirals inward, the system unleashes powerful radio…

Your brain starts making social decisions before you do

13:41
Researchers found that social behavior begins in the brain before it becomes visible as movement. In zebrafish, a coordinated pattern of activity spread across the brain several seconds before the animals approached another fish. A higher brain region called the pallium played a key role, and fish with stronger neural signals were generally more social.

One fat helped pancreatic cancer grow while another cut disease in half

13:41
A surprising new study suggests that when it comes to pancreatic cancer, the kind of fat you eat may matter more than how much. Researchers found that oleic acid—the main fat in olive oil and several other common foods—sped up tumor growth in mice predisposed to pancreatic cancer, while omega-3-rich fats from fish oil dramatically slowed disease development.

New hydrogen breakthrough turns waste heat into clean fuel

13:41
A breakthrough hydrogen-production method could make clean fuel far cheaper and easier to generate. Researchers at the University of Birmingham developed a perovskite-based catalyst that splits water into hydrogen at much lower temperatures than existing technologies, potentially allowing factories, steel plants, cement works, and renewable energy sites to turn waste heat into valuable hydrogen.

New light-powered chip could accelerate AI and quantum computing

13:41
Scientists have created a tiny chip that can generate, steer, and read light-based information all in one device, marking a major leap toward ultra-fast, energy-efficient computing. The breakthrough uses atomically thin materials and nanoscale structures to control a unique quantum property of light called the “valley” degree of freedom, allowing information to be encoded in new ways.

Your kitchen sponge is releasing microplastics every time you wash dishes

1.června
Kitchen sponges release microplastics as they wear down during everyday use, with some sponge types shedding far more than others. Researchers estimated that millions of households could collectively release hundreds of tons of microplastics annually.

This common amino acid helped mice survive deadly inflammation

1.června
A Salk Institute study found that a simple dietary amino acid, methionine, dramatically improved survival in mice facing severe infections and inflammatory conditions. Rather than directly targeting the immune system, methionine boosted kidney filtration, helping the body flush out excess inflammatory molecules that can cause tissue damage, brain dysfunction, wasting, and death.

This drug delayed rheumatoid arthritis for years after treatment ended

1.června
A promising new study suggests rheumatoid arthritis may not be as inevitable as once thought for people at high risk. Researchers found that just one year of treatment with the immune-targeting drug abatacept delayed the onset of rheumatoid arthritis by up to four years, with benefits lasting long after treatment ended.

Scientists discover inherited traits that break Mendel’s Laws of genetics

1.června
A major mouse study found that some inherited traits are passed down through epigenetic changes that break the classic rules of genetics. Researchers discovered hundreds of cases where these chemical DNA marks behaved unexpectedly, including some that seemed to emerge out of nowhere. They also identified the first known naturally occurring paramutation in a mammal, hinting that environmental infl…

NASA’s X-59 is about to break the sound barrier for the first time

1.června
NASA’s futuristic X-59 jet is about to face its biggest challenge yet: breaking the sound barrier for the first time. After a successful series of test flights that pushed the aircraft to near-supersonic speeds, engineers are preparing to fly it faster than Mach 1 and eventually up to Mach 1.6 at 60,000 feet. The sleek experimental aircraft is designed to replace the thunderous sonic boom with a …
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