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 Phys.org - latest science and technology news storiesнет даты
Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

 
 
1. Scientists to map fungal networks, determine climate role00:47[−]
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Scientists from the United States and Europe announced plans Tuesday to create the biggest map of underground fungal networks, arguing they are an important but overlooked piece in the puzzle of how to tackle climate change.

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2. Researchers generate, for the first time, a vortex beam of atoms and molecules00:44[−]
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Vortices may conjure a mental image of whirlpools and tornadoes—spinning bodies of water and air—but they can also exist on much smaller scales. In a new study published in Science, researchers from the Weizmann Institute of Science, together with collaborators from the Technion-Israel Institute of Technology and Tel Aviv University, have created, for the first time, vortices made of a single atom. These vortices could help answer fundamental questions about the inner workings of the subatomic world and be used to enhance a variety of technologies—for example, by providing new capabilities for atomic microscopes.

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3. Domestic violence goes unrecognized in faith communities00:43[−]
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Australians who are frequently involved in religion and who identify as religious are less likely to acknowledge domestic violence is an issue within their faith community, despite acknowledging it as a national issue, a new study has found.

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4. Echolocation builds prediction models of prey movement00:01[−]
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Bats are not only using their acoustical abilities to find a meal—they are also using it to predict where their prey would be, increasing their chances of a successful hunt.

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5. Changing weather patterns mix up the size, duration of annual Chesapeake Bay dead zoneВт, 30 ноя[−]
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The Chesapeake Bay Program and its partners, including the University of Michigan, released information today on the state of the 2021 Chesapeake Bay "dead zone." While last year's dead zone was the second smallest observed since 1985, this year's assessment paints a more complex picture of the bay's health.

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6. Report indicates that English learners face severe inequities and substandard conditions in New Jersey schoolsВт, 30 ноя[−]
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English learners in New Jersey public schools, already facing inadequate supports and a lack of attention, missed out on critical services during the COVID-19 pandemic, according to a new report that a Rutgers faculty member helped edit.

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7. Shrinking qubits for quantum computing with atom-thin materialsВт, 30 ноя[−]
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For quantum computers to surpass their classical counterparts in speed and capacity, their qubits—which are superconducting circuits that can exist in an infinite combination of binary states—need to be on the same wavelength. Achieving this, however, has come at the cost of size. Whereas the transistors used in classical computers have been shrunk down to nanometer scales, superconducting qubits these days are still measured in millimeters—one millimeter is one million nanometers.

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8. Flu virus shells could improve delivery of mRNA into cellsВт, 30 ноя[−]
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Nanoengineers at the University of California San Diego have developed a new and potentially more effective way to deliver messenger RNA (mRNA) into cells. Their approach involves packing mRNA inside nanoparticles that mimic the flu virus—a naturally efficient vehicle for delivering genetic material such as RNA inside cells.

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9. Extroverted? You may have better financial outcomesВт, 30 ноя[−]
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You might think the way you approach money is based on financial advice or past experiences, but new research from the University of Georgia shows that your personality may have a big impact on financial decision making and risk taking.

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10. Responding to anti-Asian racism requires better info about the AAPI community and its needsВт, 30 ноя[−]
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The recent rise of anti-Asian attacks across the U.S. has galvanized the community to build newfound alliances and resilience, with advocates working to increase reporting of hate incidents and developing strategies to fight anti-Asian racism, according to a new RAND Corporation report.

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11. Playing it safe: Scientist creates energetic compounds with isotopic labelsВт, 30 ноя[−]
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Ana Racoveanu is able to do something most others throughout the nuclear security enterprise cannot do—something challenging and extremely valuable throughout the complex.

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12. Bringing 400-million-year-old fossilized armored worms to 'virtual' lifeВт, 30 ноя[−]
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An international team of scientists from the United States and Australia, led by Sarah Jacquet at the University of Missouri, has documented the discovery of two new species of fossilized armored worms in Australia—Lepidocoleus caliburnus and Lepidocoleus shurikenus—dating from about 400 million years ago. Then, using the micro-CT imaging capabilities of the MU X-ray Microanalysis Core facility, the researchers were able to develop first-of-its-kind digital 3D-models of the species' individual armor plates by virtually examining the armored skeletons of these ancient worms, called machaeridians.

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13. High-speed holography of cells spots physical beacons of diseaseВт, 30 ноя[−]
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Biomedical engineers at Duke University have engineered a holographic system capable of imaging and analyzing tens of thousands of cells per minute to both discover and recognize signs of disease.

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14. Planetary scientists discover brief presence of water in Arabia Terra on MarsВт, 30 ноя[−]
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As part of a team of collaborators from Northern Arizona University and Johns Hopkins University, Northern Arizona University (NAU) Ph.D. candidate Ari Koeppel recently discovered that water was once present in a region of Mars called Arabia Terra.

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15. Survey of gun policy experts finds wide disagreement remainsВт, 30 ноя[−]
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Wide disagreement remains among U.S. experts who study gun policy issues, with differing opinions about how much individual policies may reduce gun violence and other harms caused by firearms, according to a new RAND Corporation report.

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16. 'Tweens' increased media use during the 2020 pandemic summer, says studyВт, 30 ноя[−]
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"Put down your phone" is a common parental phrase, the modern-day equivalent of "turn off the TV." That's because parents have long thought that staring at a screen for too long will have a detrimental effect.

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17. Build your own office podcast studioВт, 30 ноя[−]
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Converting newly emptied office spaces into podcast studios poses noise challenges not previously realized before hybrid offices began. Experts recommend considering location, nearby noise sources, and ways to absorb sound to make a studio effective.

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18. Synthetic tissue can repair hearts, muscles, and vocal cordsВт, 30 ноя[−]
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Combining knowledge of chemistry, physics, biology, and engineering, scientists from McGill University developrd a biomaterial tough enough to repair the heart, muscles, and vocal cords, representing a major advance in regenerative medicine.

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19. Asteroid material deposited during large impacts record the moon's ancient magnetic fieldВт, 30 ноя[−]
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The moon has no core dynamo magnetic field, but spacecraft detect numerous strong localized magnetic fields in the crust of the moon. Many of these magnetic anomalies are antipodal to large impact basins.

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20. Child's gender influences crime rates in young fathers and their peersВт, 30 ноя[−]
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For the first time, researchers established that young fathers who have a firstborn son rather than a daughter are convicted of fewer crimes in subsequent years, and crucially that this reduction also leads to a drop in criminal convictions among peers living in the same neighborhood.

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21. Humidity changes in dead fern fronds drives unique timing of spore dispersal in a widespread fern speciesВт, 30 ноя[−]
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The sensitive fern—named due to its sensitivity to drought and frost—is a widespread species found throughout eastern North America and eastern Asia. It is a dimorphic plant because it has two distinct types of leaves—one for photosynthesis and one for reproduction. While most fern species in temperate regions produce and disperse their spores in the summer, the sensitive fern has an atypical timing of spore dispersal. In the early summer they produce heavily modified spore-bearing fronds (or leaves) with leaflets tightly enveloping their sporangia and spores. These fronds deteriorate with age, yet continue to persist above ground during the winter as dead mature structures. In the early spring their leaflets open to disperse spores. While the timing of spore dispersal has been observed for over 120 years, the structural mechanisms driving this phenology have remained elusive.

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22. Are water plumes spraying from Europa? NASA's Europa Clipper is on the caseВт, 30 ноя[−]
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Finding plumes at Europa is an exciting prospect, but scientists warn it'll be tricky, even from up close.

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23. Understanding how to build resilient fisheriesВт, 30 ноя[−]
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A new decision-making framework designed by an international team of fisheries researchers can help fisheries bolster their ability to adapt to a warming world. The tool, said marine ecologist Jacob Eurich at UC Santa Barbara's National Center for Ecological Analysis & Synthesis (NCEAS), is meant to take a lot of the guesswork out of finding resilience in a time of climate change.

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24. Physicists create time crystals with quantum computersВт, 30 ноя[−]
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There is a huge global effort to engineer a computer capable of harnessing the power of quantum physics to carry out computations of unprecedented complexity. While formidable technological obstacles still stand in the way of creating such a quantum computer, today's early prototypes are still capable of remarkable feats.

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25. Arctic rainfall could dominate snowfall earlier than expected: studyВт, 30 ноя[−]
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Rainfall could start replacing snowfall in the Arctic decades sooner than previously thought, a study found Tuesday, warning the change caused by global warming could have effects beyond the region.

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26. Bank liquidity creation can influence the fragility of the financial systemВт, 30 ноя[−]
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How does bank liquidity creation affect the overall fragility of the banking sector and the systemic risk posed by individual financial institutions? Does bank liquidity creation influence technological innovation? And what are the real consequences of bank supervision to financial regulators?

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27. Recent advances in optical dynamic meta-holographyВт, 30 ноя[−]
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In a new publication from Opto-Electronic Advances the research group of Professor Xiong Wei, from Huazhong University of Science and Technology, Wuhan, China, discuss recent advances in optical dynamic meta-holography.

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28. All-optical computing based on convolutional neural networksВт, 30 ноя[−]
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In a new publication from Opto-Electronic Advances the research group of Professor Xiaoyong Hu and Professor Qihuang Gong from School of Physics, Peking University, China, propose a new strategy to realize ultrafast and ultralow-energy-consumption all-optical computing chip scheme based on convolutional neural network (CNN), which supports the execution of multiple computing tasks.

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29. Reshaping the plastic lifecycle into a circleВт, 30 ноя[−]
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In 1950, 2 million metric tons of new plastic was produced globally. In 2018, the world produced 360 million metric tons of plastics. Because of their low cost, durability and versatility, plastics are everywhere—including in the environment—and only 9 percent of the plastic ever generated has been recycled. The vast majority ends up in landfills, where its slow degradation allows it to accumulate, while pervasive microplastics have been found everywhere, from inside living bodies to the bottom of the ocean.

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30. WWII contaminants on an Aleutian island are a step closer to finally being cleaned upВт, 30 ноя[−]
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Richard Ragle looked at the island as the boat pulled up. He'd studied historical photographs of Great Sitkin Island for years, but it wasn't exactly what he expected—some things were bigger and others were smaller than he had imagined.

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