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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

Scientists may have found the brain network behind Parkinson’s

2:57
A new international study points to a specific brain network as the core driver of Parkinson’s disease. Scientists found that this network becomes overly connected, disrupting not just movement but also thinking and other bodily functions. When researchers targeted it with non-invasive brain stimulation, patients showed much stronger symptom improvement than with conventional stimulation. The dis…

Scientists finally solve a 100-year-old mystery in the air we breathe

2:57
Scientists at the University of Warwick have cracked a long-standing problem in air pollution science: how to predict the movement of irregularly shaped nanoparticles as they drift through the air we breathe. These tiny particles — from soot and microplastics to viruses — are linked to serious health risks, yet most models still treat them as perfect spheres for simplicity. By reworking a century…

Gut bacteria can sense their environment and it’s key to your health

2:57
Your gut is home to trillions of bacteria that constantly “sense” their surroundings to survive and thrive. New research shows that beneficial gut microbes, especially common Clostridia bacteria, can detect a surprisingly wide range of chemical signals produced during digestion, including byproducts of fats, proteins, sugars, and even DNA. These microbes use specialized sensors to move toward val…

Scientists turn sunflower oil waste into a powerful bread upgrade

2:56
Researchers have found a surprising way to turn sunflower oil waste into a powerful bread upgrade. By replacing part of wheat flour with partially defatted sunflower seed flour, breads became dramatically richer in protein, fiber, and antioxidants—while also offering potential benefits for blood sugar and fat digestion.

A hidden Aloe vera compound takes aim at Alzheimer’s

14:15
Scientists have uncovered promising clues that compounds found in Aloe vera could play a role in fighting Alzheimer’s disease. Using advanced computer modeling, researchers discovered that beta-sitosterol—a natural plant compound—strongly interacts with two key enzymes involved in memory loss and cognitive decline. The compound showed stability, strong binding, and favorable safety indicators, ma…

New drug resets the body clock and cuts jet lag recovery nearly in half

13:41
Scientists have identified a promising new compound, Mic-628, that can reliably shift the body’s internal clock forward—something that’s notoriously hard to do. By targeting a key clock-control protein, Mic-628 jump-starts the gene that sets daily rhythms, synchronizing both the brain’s master clock and clocks throughout the body. In mice experiencing simulated jet lag, a single dose cut recovery…

Chang’e-6 lunar samples reveal a giant impact reshaped the Moon’s interior

13:41
A colossal ancient impact may have reshaped the Moon far more deeply than scientists once realized. By analyzing rare lunar rocks brought back by China’s Chang’e-6 mission from the Moon’s largest crater, researchers found unusual chemical fingerprints pointing to extreme heat and material loss caused by a giant impact. The collision likely stripped away volatile elements, reshaped volcanic activi…

Physicists solve a quantum mystery that stumped scientists for decades

13:41
Physicists at Heidelberg University have developed a new theory that finally unites two long-standing and seemingly incompatible views of how exotic particles behave inside quantum matter. In some cases, an impurity moves through a sea of particles and forms a quasiparticle known as a Fermi polaron; in others, an extremely heavy impurity freezes in place and disrupts the entire system, destroying…

Scientists found a gut compound that helps protect the liver

8:45
What a mother eats during pregnancy may quietly shape her child’s liver health years down the road—but new research suggests there may be a way to tip the odds back in a healthier direction. Scientists found that a natural compound made by healthy gut bacteria dramatically reduced fatty liver disease in the offspring of mice whose mothers ate a high-fat, high-sugar diet. The compound, called indo…

Ancient bones reveal chilling victory rituals after Europe’s earliest wars

8:45
New evidence from Neolithic mass graves in northeastern France suggests that some of Europe’s earliest violent encounters were not random acts of brutality, but carefully staged displays of power. By analyzing chemical clues locked in ancient bones and teeth, researchers found that many victims were outsiders who suffered extreme, ritualized violence after conflict. Severed arms appear to have be…

Scientists warn climate models are missing a key ocean player

7:41
Tiny marine plankton that build calcium carbonate shells play an outsized role in regulating Earth’s climate, quietly pulling carbon from the atmosphere and helping lock it away in the deep ocean. New research shows these microscopic engineers are largely missing from the climate models used to forecast our planet’s future, meaning scientists may be underestimating how the ocean responds to clima…

Pumas are back in Patagonia and Penguins are paying the price

7:41
Pumas returning to Patagonia have begun hunting mainland penguins that evolved without land predators. Scientists estimate that more than 7,000 adult penguins were killed in just four years, many of them left uneaten. While the losses are dramatic, models show that pumas alone are unlikely to wipe out the colony. Greater dangers come from poor breeding and low survival among young penguins.

This weird deep-sea creature was named by thousands of people online

7:41
A newly discovered deep-sea creature has become an unlikely Internet star. After appearing in a popular YouTube video, a rare chiton found nearly three miles beneath the ocean surface sparked a global naming effort, drawing more than 8,000 suggestions from people around the world. Scientists ultimately chose the name Ferreiraella populi, meaning “of the people,” honoring the public that helped br…

How COVID and H1N1 swept through U.S. cities in just weeks

7.února
New simulations reveal that both H1N1 and COVID-19 spread across U.S. cities in a matter of weeks, often before officials realized what was happening. Major travel hubs helped drive rapid nationwide transmission, with air travel playing a bigger role than daily commuting. Unpredictable transmission patterns made real-time forecasting especially difficult. The study highlights why early detection …

Menopause linked to grey matter loss in key brain regions

7.února
A major study suggests menopause is linked to changes in brain structure, mental health, and sleep. Brain scans revealed grey matter loss in areas tied to memory and emotional regulation, while many women reported increased anxiety, depression, and fatigue. Hormone therapy did not reverse these effects, though it may slow age-related declines in reaction speed. Researchers say menopause could rep…
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