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כתבות אחרונות מאתר 'Phys'
Phys

Construction of Asian carp barrier in Illinois hits another snag‎

Nine months ago, President Donald Trump signed a presidential memorandum instructing his administration to "achieve maximum speed and efficiency" in moving to block invasive Asian carp from reaching the Great Lakes.

04:54
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Phys

Bats, bushbabies and aardvark edge closer to extinction in southern Africa‎

A new list of threatened mammals in South Africa, Lesotho and Eswatini shows that 11 more species have edged closer to extinction since 2016. Those that have joined the International Union for the Conservation of Nature's regional Red List for mammals at risk are: Lesueur's hairy bat, the laminate vlei rat, the thick-tailed bushbaby, the aardvark and the African straw-colored fruit bat. The Namaqua dune mole-rat showed one of the sharpest declines, jumping from Least Concern to Endangered. Joseph Ogutu is a statistician who researches collapsing wildlife populations in Africa. He explains that of the 336 mammals assessed, 70 are now threatened and 42% of the mammals only found in South Africa are at risk of extinction.

04:54
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Phys

New NASA Artemis payloads to study moon's terrain, radiation, history‎

NASA announced Tuesday the selection of three new science investigations that will strengthen humanity's understanding and exploration of the moon. As part of the agency's CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign, American companies will deliver these research payloads to the lunar surface no earlier than 2028.

03:23
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Phys

When science jams: Biomedical engineer draws on musical roots to reimagine scientific collaboration‎

For Roy Maimon, hitting the bar stage and working in the scientific laboratory have never been separate worlds. During his Ph.D., the new NYU Tandon biomedical engineering assistant professor would spend his days pipetting samples and his nights playing drums in punk rock bands at local bars.

01:52
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Phys

Artificial intelligence in manufacturing rocket parts‎

Artificial Intelligence, or AI, promises many benefits in all domains, and rocketry is no different. The European Space Agency's Future Launchers Preparatory Program (FLPP) is investigating the use of AI to develop better processes and even whole new shapes in materials that could be used on rockets or spacecraft of the future.

01:52
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Phys

Snow is vital for the Pyrenees, and it's disappearing fast‎

Snow is a defining feature of mountain ranges, and of winter itself for much of the world. But beyond its scenic value, snow plays a vital role in mountain ecosystems, as well as a range of human socioeconomic activity, and it is one of the climatic elements most sensitive to global warming. In recent decades, its quantity, duration and behavior have all changed significantly.

01:52
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Phys

New analysis suggests carbon markets must account for storage duration in pricing removals‎

Carbon dioxide removal technologies are becoming increasingly important for climate action, but their differing storage times matter for policy design. A new study published in Environmental and Resource Economics by the Potsdam Institute for Climate Impact Research (PIK) provides guidance based on economic principles. While non-permanent carbon storage plays a valuable role as economies transition away from fossil fuels, its contribution is less valuable than permanent storage; this should be reflected in carbon pricing schemes that aim to incentivize the ramping-up of removals.

01:52
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Phys

Massive cloud with metallic winds discovered orbiting mystery object‎

Sweeping winds of vaporized metals have been found in a massive cloud that dimmed the light of a star for nearly nine months. This discovery, made with the Gemini South telescope in Chile, one half of the International Gemini Observatory, offers a rare glimpse into the chaotic and dynamic processes still shaping planetary systems long after their formation.

00:38
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Phys

Parasitic fungi infect nitrogen-fixing cyanobacteria, altering Baltic Sea nutrient cycles‎

Under the lead of the Leibniz Institute for Baltic Sea Research Warnemünde (IOW) the influence of parasitic fungi on the physiology and survival of cyanobacteria in the Baltic Sea was investigated. Such infections are known from lakes. Due to the high nutrient load in the Baltic Sea, there are high levels of cyanobacteria, some of which are toxic (algal blooms).

00:38
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Phys

Single enzyme found to control formation of immune cells critical for health‎

A new study led by researchers at the Johns Hopkins Kimmel Cancer Center, its Bloomberg~Kimmel Institute for Cancer Immunotherapy and the Johns Hopkins Bloomberg School of Public Health found that an enzyme involved in protein translation is essential for circulating immune cells, called monocytes, to mature into tissue-resident macrophages, a specialized population of immune cells that maintain organ health by clearing dead cells and debris.

00:38
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