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כתבות אחרונות מאתר 'Phys'
Phys

Moms' learned fear of snakes gets inherited by offspring in a critically endangered mouse, biologists discover‎

Conservationists often raise the young of endangered species in captivity before releasing them into suitable habitats as adults. The benefits are obvious: survival to adulthood is typically high, as captive animals are safe from predators and food scarcity. Unfortunately, a lack of exposure to enemies in early life may become a drawback later, if the released individuals have never learned to recognize and avoid their predators.

07:04
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Phys

Reconnecting the last wild landscapes of the Javan leopard‎

Research from the University of Twente shows how the Javan leopard, one of the world's rarest big cats, survives on one of the most crowded islands on Earth. Using camera traps and spatial models, Andhika Chandra Ariyanto, a doctoral researcher at ITC, found that the cat depends on a wide range of prey and on recovering forests as much as on the protected reserves that conservation usually prioritizes.

06:20
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Phys

Q&A: How approval processes drive up housing costs in major cities‎

Austin Zwick, associate teaching professor in the College of Professional Studies and the Maxwell School of Citizenship and Public Affairs, explains how cities can fix their planning systems to address housing crises.

05:21
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Phys

The next-generation Very Large Array prototype gathers its first light‎

The Very Large Array, the iconic field of radio antennas featured in the film "Contact" (inspired by Carl Sagan's novel), has a long and distinguished history of service. But after more than 45 years of studying the radio sky and probing the mysteries of the universe, the U.S. National Science Foundation National Radio Astronomy Observatory, which operates the VLA, is looking to create a new generation of telescopes that will pick up where the VLA leaves off.

04:33
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Phys

Great apes: What we know about their cognition, cooperation and curiosity after two decades of research‎

Leipzig Zoo in central Germany is a world-leading center of great ape research. Recent studies have seen chimpanzees there using touchscreen controls to navigate virtual forests and locate food rewards—applying similar techniques to what they would use in the wild.

04:05
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Phys

Asteroid dirt is 'fluffier' than we thought‎

The strength of gravity is different on every body in the solar system. Whether it's the crushing weight of Jupiter or the minuscule pull of a small asteroid, this fundamental force of physics still has a major impact on the material those bodies are made up of. A new paper from researchers at the University of Duisburg-Essen and the German Aerospace Center (DLR) showcases just how different it can be by letting planetary simulants freefall inside a giant drop tower and measuring how "fluffy" the space dirt got. The findings are published on the arXiv preprint server.

03:41
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Phys

Species of Brazilian moths described in honor of Orixás, foundational deities of Afro-Brazilian religions‎

A species of moth that was first described in 1818 was believed to be a single species. However, it has since been discovered that it is actually a complex of species, eight of which are found in Brazil. These findings are the result of a study that integrated molecular techniques, morphological data, and the identification of host plants from populations in the Amazon, Atlantic Forest, and Pantanal regions.

03:21
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Phys

Hybrid work is not always the golden compromise employees expect—even as more companies implement it‎

A truce of sorts has quelled the return-to-office wars that have raged in the post-pandemic workplace.

03:05
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Phys

Monitoring reveals elevated antidepressant levels in some waterways‎

Depression, anxiety and sleep disorders are among the conditions often treated with antidepressant drugs. Yet, up to 90% of these drugs pass through the body into wastewater. They're also difficult to remove during water treatment, presenting a possible risk of environmental contamination and threats to ecological and human health. Now, researchers reporting in Environmental Science & Technology have found some antidepressant drugs at levels that could be harmful to aquatic wildlife in North Carolina waterways.

02:45
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Phys

Dynamic nanogates let longer molecules pass faster through flexible pores‎

A research team led by Professor Shuichi Hiraoka at the University of Tokyo and Professor Masanori Tachikawa at Yokohama City University has quantitatively analyzed how molecules pass through dynamic nanoscale pores using self-assembled molecular "nanocubes" in water. The researchers discovered an unexpected phenomenon: For linear alkane molecules, longer molecules passed through the molecular gates faster than shorter ones.

02:45
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