To rapidly transmit electrical signals in the brain, the long nerve fibers are insulated by specialized cells called oligodendrocytes. These cells also respond to the electrical signals of active nerve fibers and provide them with energy on demand, as researchers have discovered. If this process, regulated by potassium, is disabled in mice, the nerve fibers are severely damaged as the animals age -- resembling the defects of neurodegenerative diseases. Read more ›
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Green roofs have become increasingly popular thanks to their benefits related to climate adaptation, mitigation, and urban biodiversity management. But, in the U.S., green roofs are typically planted with non-native plants in sterile soils, and their effectiveness declines over time. A new study finds that managing green roof soil microbes boosts healthy urban soil development, which is a methodology that could be applied to support climate resilience in cities. Read more ›
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Insect-killing bacteria typically release toxins to slay their hosts. The bacterium Photorhabdus luminescens, for example, pumps insect larvae full of the lethal 'Makes caterpillars floppy 1' (Mcf1) toxin, leading them to first become droopy and then dead. However, it has so far been a mystery how Mcf1 unfolds its devastating effect. Researchers successfully used cryo-electron microscopy (cryo-EM) and biochemical assays to characterize the first-ever Mcf1 structure, allowing them to propose... Read more ›
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Having a high dietary intake of fish and vegetables at 1 year of age, and a low intake of sugar beverages, seems to protect against inflammatory bowel disease. These are the findings of a study with more than 80,000 children. Read more ›
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A precursor of cholesterol, previously categorized as harmful, can protect cancer cells from cell death. Read more ›
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At low enough temperatures, certain metals lose their electrical resistance and they conduct electricity without loss. This effect of superconductivity is known for more than hundred years and is well understood for so-called conventional superconductors. More recent, however, are unconventional superconductors, for which it is unclear yet how they work. Read more ›
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Researchers have concluded that the methane uptake in dry landscapes exceeds methane emissions from wet areas across the ice-free part of Greenland. The results of the new study contribute with important knowledge for climate models. The researchers are now investigating whether the same finding applies to other polar regions. Read more ›
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A new patch uses tiny needles to measure electrical signals in the human body with incredible accuracy, even when these devices are stretched or twisted. Read more ›
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A new study has found that the brain system enabling us to inhibit our own pain changes with age, and that gender-based differences in those changes may lead females to be more sensitive to moderate pain than males as older adults. Read more ›
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When comparing the national burden of pedestrian injuries from motor vehicles to that of pedestrian falls occurring on streets and sidewalks researchers found that the probability of a pedestrian suffering a severe injury is higher for motor vehicle collisions as compared to falls. Yet, the public health burden of the number of pedestrians injured from a fall -- severe or otherwise -- is significantly higher compared to the number of... Read more ›
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First input-output economic analysis of the 2019-20 Australian fires also found 7300 jobs were lost. The study highlights economic vulnerabilities to extremes of climate change. Read more ›
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New research demonstrates a new class of hydrogels that can form not just outside cells, but also inside of them. These hydrogels exhibited similar mechanical properties both inside and outside of cells, providing researchers with a new tool to group proteins together inside of cells. Read more ›
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To find poison ivy before it finds you, scientists have published a new study in which they show how they used artificial intelligence to confirm that an app can identify poison ivy. The app is not yet commercially available, nor is there a timetable for it to be available. Read more ›
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A recent study utilized a machine learning-based approach to identify, understand, and predict diuretic responsiveness in patients with acute decompensated heart failure (ADHF). Read more ›
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Evolutionary biologists report they have combined PET scans of modern pigeons along with studies of dinosaur fossils to help answer an enduring question in biology: How did the brains of birds evolve to enable them to fly? Read more ›
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A new study may hold a secret for getting your teenager to listen to appreciate your unsolicited advice. The study, which included 'emerging adults' -- those in their late teens and early 20s -- found teens will appreciate parents' unsolicited advice, but only if the parent is supportive of their teens' autonomy. Read more ›
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An international team has developed a new method to make and manipulate a widely studied class of high-temperature superconductors. This technique should pave the way for the creation of unusual forms of superconductivity in previously unattainable materials. Read more ›
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Plasmonics are unique light-matter interactions in the nanoscale regime. Now, a team of researchers has highlighted advances in shadow growth techniques for plasmonic materials, which have the potential to give rise to nanoparticles with diverse shapes and properties. They also introduce a method for large-scale production of nano-rotamers of magnesium with programmable polarization behavior, opening avenues for novel research applications. Read more ›
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Scientists have developed a green antibiotic alternative to treat the deadly pathogen Streptococcus iniae in hybrid striped bass, the fourth most farmed finfish in the United States, according to a recent study. Read more ›
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A team of researchers, in an analysis of waste products -- municipal solid waste, wastewater, and greenhouse gas emissions -- from more than 1,000 cities around the world has concluded that cities with a higher per-capita GDP generate more waste, which underscores the strong bond between waste generation and economic growth. Read more ›
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23.07.2026 05:04
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