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כתבות אחרונות מאתר 'Phys'
Phys

AI skills not enough to level the playing field—study‎

Training in AI skills improves the chances of women from underrepresented backgrounds being invited to job interviews, but not enough to eliminate the inequalities they face in the labor market, according to a new study.

18:21
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Phys

Changes in DNA packaging help immune cells swell and burst‎

Immune cells are the elite athletes of the human body. While other cells stay in place, immune cells travel throughout our bodies, squeezing through small channels, stretching themselves, sampling the surfaces of other cells and swallowing up invaders. One of their most extreme behaviors is NETosis, a process in which certain immune cells burst and release their DNA as a way to trap pathogens.

18:21
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Phys

More than half of LGBTQ+ adults in Massachusetts faced food insecurity in 2024‎

More than half of LGBTQ+ adults in Massachusetts experienced food insecurity in 2024, according to a new study published in JAMA Network Open. Researchers also found that food insecurity increased from 2022 to 2024 and remained significantly more common among LGBTQ+ adults than among non-LGBTQ+ adults.

18:04
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Phys

Sperm whale study highlights need for 'extensive and dynamic' conservation‎

A new study of sperm whales highlights the need for ocean conservation that covers large areas—with boundaries redrawn as our climate changes. The research team, led by the University of Exeter, combined sperm whale surveys in the southwest Indian Ocean with predictions of how climate change will shift where the whales are found in the future.

18:04
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Phys

New electrode design breaks key barrier to greener ammonia production‎

A new approach to producing ammonia using renewable electricity has overcome a fundamental energy limitation of the technology, opening new possibilities for cleaner and potentially more cost-effective production of one of the world's most important chemicals.

18:04
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Phys

Rise of collagen-eating microbes may help explain gaps in the fossil record‎

Researchers may have uncovered the reason why some of Earth's earliest animals were commonly preserved as fossils—even though they were essentially fragile "bags of goo"—while later soft-bodied creatures have largely disappeared from the fossil record.

18:04
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Phys

Harmless amoeba's tight-space crawling offers clues to how its deadly relative invades the brain‎

Tiny, shapeless invaders can find their way from ponds to the human brain and cause an infection so severe that it has a 95% fatality rate. The amoeba Naegleria fowleri naturally lives in ponds, feasting on bacteria, but once it enters the human body, it makes a run for the brain tissue, traversing complex, tight spaces to reach its destination.

17:44
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Phys

Mixing plant material with manure may be key to profitable biogas production‎

The U.S. dairy industry is a major contributor to agricultural greenhouse gas emissions, with manure storage and handling representing a significant source of methane. Anaerobic digestion of cow manure—a biological process in which microorganisms break down biodegradable organic matter—has been widely studied as a strategy to mitigate manure-related emissions while producing renewable energy. That energy comes in the form of biogas that can be used to generate electricity or make renewable natural gas.

17:44
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Phys

Seismic analysis reveals ancient traces of mantle flow beneath the Pacific's oldest plate‎

Seismic data captured by ocean-bottom instruments have revealed "fossilized" traces of mantle flow beneath the Pacific Ocean's oldest preserved piece of crust. The patterns of ancient flow traced in the uppermost mantle are complicated, tracking changes in tectonic plate motion over time as well as mantle deformation around features such as a sunken remnant of the lithosphere (the crust and the uppermost brittle mantle) and upwelling hotspots.

17:21
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Phys

Sea surface temperatures suggest El Niño is strengthening‎

Sea surface temperatures in the central and eastern tropical Pacific are forecast to increase to record levels during October–December 2026, reflecting the strengthening of the El Niño event, which will drive weather patterns and affect economies, ecosystems and communities across the globe.

17:21
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