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ScienceDaily

Popis:

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

Katalog:

Technology → Science

Publikuje:

11,1 položek/den

A surprising brain difference may explain why some kids struggle with math

3:58
Stanford researchers have discovered that children who struggle persistently with math may have underlying differences in how their brains manage problem-solving strategies. Children with developmental dyscalculia were slower to switch strategies, less responsive to changes in difficulty, and less able to improve their approach over time. Distinct patterns of brain activity were linked to these d…

A new treasure map reveals where Earth's lost prehistoric life may be hiding

3:58
A sweeping analysis of 540 million years of marine fossils has revealed surprising gaps in our understanding of Earth's ancient life. Scientists discovered that some of the greatest opportunities for finding previously unknown species lie in relatively recent geological periods, rather than the distant past. By mapping unexplored fossil-rich regions around the world, researchers have created a po…

Without this protein, damaged muscle fills with fat and scar tissue

3:58
Researchers have uncovered a surprising hidden function of a protein that may hold the key to repairing damaged muscles and treating muscular dystrophy. Known for protecting chromosomes, TRF2 also helps muscle stem cells maintain their identity and regenerate injured tissue. When scientists removed the protein in mice, muscles struggled to repair themselves, and muscular dystrophy progressed dram…

NASA’s Perseverance confirms a key ingredient for life hidden in ancient Mars rocks

3:58
NASA's Perseverance rover has confirmed complex organic carbon just beneath the surface of ancient Martian rocks, raising intriguing questions about the Red Planet's potential to have supported life. The remarkable preservation of these compounds, along with similar discoveries thousands of miles away, suggests the building blocks of life may once have been widespread across Mars.

A breakthrough in magnetism could make AI chips use dramatically less energy

3:58
Researchers at Brown University have overcome a major obstacle to creating ultra-low-power computer chips that could help slash the energy demands of AI. Their breakthrough eliminates a long-standing "dead layer" problem that causes promising materials to stop working when made extremely thin. Remarkably, the new technique not only preserves the materials' electrical and magnetic properties at ne…

Crows can make decisions twice as fast as humans, scientists discover

3:58
Crows may be even smarter than we thought, and their brains are astonishingly fast. Researchers at the University of Tübingen discovered that crows can make visual decisions twice as quickly as humans and monkeys, taking just 235 milliseconds on average to identify the direction of moving dots while maintaining remarkable accuracy.

Animal vs. plant protein reveals a surprising testosterone divide

3:57
A surprising new study suggests that where men get their protein may be linked to their testosterone levels. Researchers studying more than 2,500 men found that higher animal protein intake, particularly from dairy, was associated with lower testosterone, while plant protein was linked to higher levels. The findings raise intriguing questions about how everyday food choices might relate to male h…

Colorectal cancer is rising again after 20 years, and scientists don't know why

3:57
Colorectal cancer is making an alarming comeback in the United States after more than 20 years of declining rates, and the increase is no longer limited to younger adults. A major new study found rising rates across nearly every age group under 70, including older Americans who have historically benefited most from cancer screening.

A butterfly that fooled scientists for 200 years finally reveals its secrets

3:57
Researchers have discovered that a familiar tropical butterfly actually belongs to three nearly identical species, including one previously unknown to science. Hidden ultraviolet wing patterns and DNA differences revealed the truth, leaving scientists puzzled about how the butterflies remain genetically separate despite living side by side.

AI-powered bionic eye breakthrough could help the blind see again

3:57
Scientists have developed an AI-powered approach that makes experimental bionic vision technology more precise, helping predict the flashes and shapes of light perceived by a blind man with a brain implant. By learning how an individual's brain responds to electrical stimulation, the technology could bring researchers closer to restoring some degree of sight to people with blindness.

Common forever chemicals linked to nearly double the rate of aggressive breast cancer

10:50
An NIH study found that women with high levels of two common “forever chemicals” had up to 93% higher rates of an aggressive form of breast cancer. The discovery raises concerns about the potential health effects of persistent chemicals found in everyday products.

Earth's fiery birth may have created hundreds of oceans' worth of water

10:50
Earth's water may have been born in the planet's fiery atmosphere rather than delivered by icy comets or asteroids. Scientists discovered that rocky pebbles reacting with hydrogen under extreme heat can produce water in minutes, potentially generating hundreds of oceans' worth during Earth's formation. The findings suggest that water may be a natural part of how rocky planets form, rather than so…

Scientists discover a common sugar may help cancer cells break free and spread

6:02
Scientists have uncovered a surprising way that fructose, a sugar commonly found in sweetened foods and drinks, may help aggressive ovarian cancer spread. Researchers discovered that cancer cells surviving chemotherapy release fructose that weakens the bonds holding neighboring tumor cells together, making it easier for cancer to spread. High dietary fructose levels and cholesterol-lowering stati…

Walking and weight training may not be enough to keep your bones strong

6:02
A surprising new study suggests that walking, jogging, and even traditional weight training may be less effective at stimulating bone formation than high-intensity sports involving explosive movements and sudden changes in direction. Researchers found that activities such as football and handball increased markers of bone formation by up to 46%, potentially revealing a better way to protect bones…

A massive new simulation reveals how the universe emerged from darkness

6:02
A groundbreaking new supercomputer simulation is revealing how the universe escaped its cosmic dark age and transformed into a cosmos filled with stars and galaxies. Called Lumina, it recreates 2 billion years of early cosmic history across a region 1.6 billion light-years wide, capturing extraordinary details that previous simulations could not.
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