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כתבות אחרונות מאתר 'Phys'
Phys

The role of social relationships in scaling agricultural innovations: A dimension that remains underreported in research‎

A study published in Frontiers in Sustainable Food Systems reveals that, although partnerships and institutional collaboration feature prominently in climate-oriented agricultural research, their relationship with the scaling of innovations is rarely explicitly documented. The findings highlight the need to better understand the role of social relationships to strengthen the design, monitoring and evaluation of scaling processes.

05:51
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Phys

Heavier-than-expected electron behavior may explain slower electrical flow in alpha-gallium oxide‎

Power electronic devices help control the flow of electricity and convert it into forms needed by different machines, such as electric vehicles, renewable energy systems and industrial equipment. Some electrical energy is lost as heat during this process, reducing efficiency and potentially affecting the device's performance. Semiconductor materials that can withstand high voltages, carry electricity efficiently and release heat effectively would make these devices more efficient and reliable.

04:20
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Phys

Fiji petrel eludes 10-day search as communities aim to protect bird's habitat‎

A new study details scientists' search for one of the planet's rarest birds in the waters off Fiji's Gau Island. Spanning 10 days, the expedition yielded no verified sightings of the critically endangered Fiji petrel, one of the world's most elusive birds. Fewer than 50 individuals are believed to remain on Earth.

02:49
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Phys

Unstable plasma heats itself with waves it generates, experiments reveal‎

Fusion power is expected to be a sustainable energy source that emits no carbon dioxide during electricity generation. To achieve this, research is underway worldwide to confine high-temperature plasma using magnetic fields. To initiate a fusion reaction, high-energy particles or waves must be injected from outside to heat the plasma to extremely high temperatures.

02:49
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Phys

Same farms, different answers: When nitrogen pollution estimates don't add up‎

To reduce nitrogen pollution stemming from synthetic fertilizer and livestock waste, California's Central Valley relies on five data sets to estimate surplus nitrogen. However, most parts of the United States use just one or two data sets—the U.S. Department of Agriculture's agricultural survey and census—to estimate nitrogen surplus.

01:19
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Phys

Hidden 'master switch' allows bacteria to breach the body's defenses‎

Researchers at Penn Dental Medicine have uncovered a previously unknown molecular mechanism by which bacteria rapidly compromise the body's protective barriers, a finding that could reshape how scientists approach a wide range of serious diseases.

01:19
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Phys

'Planimal' cells retain nearly entire algal genome after experimental cell fusion‎

Most DNA in an organism is inherited from its parent or parents. This form of genetic inheritance is referred to as vertical inheritance because genes are passed down from generation to generation.

01:19
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Phys

Modified $450 3D printer builds living materials with more than 100 layers‎

Living materials created with a 3D printer are like living tissues with one notable exception: You get to choose exactly which cells are in them, as well as their final 3D shape. Depending on the type of bacteria included in the print, the material can clean up contaminated water or break down waste materials such as plastic.

01:19
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Phys

Genomic analysis restores species status to 12 overlooked Great Barrier Reef corals‎

An international team of scientists working with Queensland Museum's CoralBank project has uncovered previously hidden coral diversity on Australia's east coast, revealing that 12 corals once considered variations of other species are distinct species in their own right.

23:48
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Phys

Common ADHD classroom accommodations may not help students succeed, study finds‎

Extra time on assignments. Frequent breaks. A quiet place to work. For students with attention-deficit/hyperactivity disorder (ADHD), these are some of the most common accommodations schools provide to make learning easier. But are they actually helping children succeed? A new study from Florida International University (FIU) suggests that some widely used approaches may be falling short.

23:48
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