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כתבות אחרונות מאתר 'Phys'
Phys

Chicken kidney sponge could be 'outstanding' at cleaning up polluted ports‎

Ports rank among the most disturbed marine environments. Pollutants like trash, oil and toxins from antifouling paints tend to accumulate in enclosed harbors. Invasive species arriving in ballast water may displace native wildlife, while ship propellers, sonars and dredging cause noise pollution that can interfere with animal communication. There is thus a great need for effective ways to clean up harbors. One promising method is renaturalization, in which hardy species that can survive under these conditions are deliberately introduced to act as pioneers.

07:03
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Phys

Quantum in the palm of your hand: The evolution of superconducting qubits‎

Electrons zipping through transistors, powering the screens on our smartphones. Light zooming from distant stars to Earth, moving faster than anything else in the universe. Protons enabling MRI machines to analyze people's injuries.

06:40
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Phys

Three-dimensional visualization of nanoplastic distribution in the neonatal mouse brain‎

Nanoplastics—plastic particles smaller than one micrometer—are generated through the degradation and abrasion of plastic products and are increasingly detected in food, drinking water, air and biological tissues. Although the presence of plastic particles in animals and humans is well-established, determining how nanoplastics are distributed within complex organs, such as the brain, remains challenging.

04:46
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Phys

Machine learning LDL-C equation comparable to original Martin-Hopkins‎

A simplified machine learning-based low-density lipoprotein cholesterol (LDL-C) equation provides results that are comparable to the original Martin-Hopkins equation, according to a study published online July 15 in JAMA Cardiology.

03:50
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Phys

The role of community energy in mediating the sustainable energy transition‎

Community energy projects, actively governed and managed by community members, play an essential role in advancing just energy transitions, for example, by providing energy in remote areas, facilitating the adoption of renewable technologies and building resilient electricity networks. However, their adoption remains limited. How does community energy work in practice, and how can it become more widespread?

03:01
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Phys

Humanoid classroom robots show potential as teaching assistants, not teacher replacements‎

A New York school district made global headlines this week for plans to trial a humanoid robot named "Sally" in high school classrooms.

02:41
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Phys

Strain turns non-chiral crystals left- or right-handed on demand‎

Mechanical strain is one of the most common tools used to tailor the properties of materials. In piezoelectric materials, stretching or compressing a crystal generates an electrical polarization. In piezomagnetic materials, it induces magnetization. Researchers at the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) and the University of Oxford have now discovered that mechanical strain also induces chirality in non-chiral crystals, opening a new direction to control this property on demand and potentially imprint chiral electronic properties. This work has just been published in Nature.

02:41
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Phys

A climate resilience strategy to strengthen US seafood competitiveness‎

As the U.S. looks to expand domestic seafood production, a new University of Miami study argues that long-term competitiveness will depend on how well fisheries can withstand climate-driven disruptions. The study comes as NOAA advances new efforts to increase domestic seafood production and suggests that producing more seafood will require investments that reduce disruptions to the nation's fisheries and seafood supply chains.

02:22
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Phys

Hydrothermal microbes shape seafloor minerals at newly found vents near Greek island‎

In August 2023, the German research vessel METEOR set sail on Expedition M192 to the Greek island of Milos with Dr. Solveig Bühring as chief scientist. The mission was to locate and investigate previously unknown hydrothermal systems. Now, three years later, a new study highlights the surprising discoveries resulting from this expedition. At a newly discovered hydrothermal system at intermediate water depths of 100 to 250 meters (328 to 820 feet), researchers demonstrated how different intensities of hydrothermal fluid flow shape microbial communities and control mineral formation on the ocean floor.

02:22
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Phys

Lake ice loss could accelerate after winter temperatures cross critical thresholds‎

For lakes across the Northern Hemisphere, winter ice is more than a frozen surface. It is a seasonal regulator that shapes underwater ecosystems and energy balance. But as the planet warms, this frozen season is disappearing faster than expected.

02:02
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