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phys.org

Saturday, Jan 17

14

Imaging technique captures ultrafast electron and atom dynamics in chemical reactions

phys.org

During chemical reactions, atoms in the reacting substances break their bonds and re-arrange, forming different chemical products. This process entails the movement of both electrons (i.e., negatively charged particles) and nuclei (i.e.,…

13

Scientists transform enigmatic cell structures into devices for recording RNA activity

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Scientists can peer into cells to get a limited view of their activity using microscopes and other tools. However, cells and the molecular events within them are dynamic, and developmental processes, disease progression and certain…

10

New map reveals a rugged world beneath the Antarctic ice sheet

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Scientists have discovered there is more to Antarctica than meets the eye. A new map of the landscape beneath the frozen continent's ice sheet has revealed a previously hidden world of mountains, deep canyons and rugged hills in…

Thursday, Jan 15

19

Antarctic submillimeter telescope enables more complete view of the carbon cycle in star-forming regions

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Chinese researchers have braved the cold and harsh environment of Antarctica in order to get a unique view of star formation in the interstellar medium (ISM). The Chinese National Antarctica and Arctic Research Expedition (CHINARE) has…

18

Construction emissions are higher than thought—but the solution isn't building less, new study finds

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Many cities are making great strides in the fight against climate change, such as improving building energy efficiency, reducing traffic congestion and switching to renewable power sources. But there is another often overlooked problem,…

16

Ancient Type II supernova discovered from universe's first billion years

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Using the James Webb Space Telescope (JWST), an international team of astronomers has discovered a new Type II supernova. The newly detected supernova, named SN Eos, exploded when the universe was only 1 billion years old. The finding was…

How concrete jungles could be changing dandelion seed dispersal in Japan

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Dandelions are incredible plants with a highly efficient seed-dispersal system, meaning even a gentle breeze can carry seeds and their parachutes great distances. But in several places in Aichi Prefecture, Japan, they have changed, and the…

15

Slowing down muon decay with short laser pulses

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Muons are unstable subatomic particles that spontaneously and rapidly transform into other particles via a process known as electroweak decay. Altering the speed with which muons decay into other particles was so far deemed a challenging…

Temporal anti-parity–time symmetry offers new way to steer energy through systems

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The movement of waves, patterns that carry sound, light or heat, through materials has been widely studied by physicists, as it has implications for the development of numerous modern technologies. In several materials, the movement of…

Wednesday, Jan 14

20

How prolonged maternal care in horses builds better brains and improves social skills

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As with humans, the maternal bond in nature is important for animals to find their way in the world. In mammals, a mother does not just provide milk; she also teaches her offspring survival skills and how to play well with others. But…

Medieval burials shed light on Menga dolmen's multicultural significance over thousands of years

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The Menga dolmen in Antequera, Spain, is a Neolithic monument and part of a UNESCO World Heritage site. The monument, built in the fourth millennium BCE, has seen continued use for burials and rituals through the Bronze Age, Iron Age,…

17

Indoor ozone reaction products can make blood thicker

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Ozone that protects us from the sun's harmful UV rays, when in an indoor space, reacts with oils present on skin, wall paint, or even cooking oil to produce chemicals that negatively impact cardiovascular health.

16

Two simple modifications cool Kenyan homes and keep mosquitoes out

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Researchers in Kenya have identified two low-cost solutions that tackle the twin challenges of rising temperatures and malaria transmission.

Astronomers discover 19 new pulsars by analyzing FAST archival data

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Astronomers from Nanjing University in China have analyzed the archival data from the Five-hundred-meter Aperture Spherical radio Telescope (FAST), searching for new pulsars. As a result, they detected 19 such objects that were missed by…

Tuesday, Jan 13

21

Sparse tongue hair explains why queen bees stop foraging when workers emerge

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During spring, when queen bumblebees first emerge from hibernation to start their nests, they work incredibly hard foraging for nectar to fuel their new colonies. But then, as soon as their first workers are born, they seem to slack off.

20

Asexual yam species employs mimicry to trick birds and spread farther

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Evolutionarily speaking, the ultimate goal of a lifeform is to reproduce and stave off extinction. Many plants and animals have evolved unique tricks to do so. One of these tricks is mimicry, which might be used to trick other species into…

17

Massive impact could be the cause of our lopsided moon

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Our nearest neighbor, the moon, is still something of a mystery to us. For decades, scientists have wondered why it appears so lopsided, with dark volcanic plains on the near side (the side we see) and rugged, cratered mountains and a…

16

Scientists realize a three-qubit quantum register in a silicon photonic chip

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Quantum technologies are highly promising devices that process, transfer or store information leveraging quantum mechanical effects. Instead of relying on bits, like classical computers, quantum devices rely on entangled qubits, units of…

Spaceflight causes astronauts' brains to shift, stretch and compress in microgravity

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Spaceflight takes a physical toll on astronauts, causing muscles to atrophy, bones to thin and bodily fluids to shift. According to a new study published in the journal PNAS, we can now add another major change to that list. Being in…

New massive hot subdwarf binary discovered

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Astronomers report the discovery of a new binary system, designated LAMOST J065816.72+094343.1. The newfound binary consists of a massive and hot subdwarf and an unseen companion. The finding was detailed in the January issue of the…

14

Glazed sherds in remote Gobi Desert reveal ancient Persian trade connections

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In a study published in the Journal of Archaeological Science: Reports, Dr. Ellery Frahm and his colleagues analyzed two unusual blue-green glazed ceramic sherds discovered in the Gobi Desert in 2016.

Microbubbles can release microplastics into our water

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Microbubbles in the tap water you just poured into a plastic glass are strong enough to create tiny abrasions on the inner layer of the plastic—quietly adding to our growing microplastic problem.

Monday, Jan 12

21

Complex life on planets orbiting the galaxy's most common stars may be unlikely

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In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to find it around many of the most common stars in the galaxy.

19

Aerosol pollution found to thicken fog over Northern India—especially at night

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Frequent, thick winter fog events are a common nuisance in Northern India, exacerbated by heavy air pollution and dense aerosol concentrations. Because these fog events often cause major disruptions to transportation and the economy, a…

18

Asteroseismology study probes properties of newly discovered pulsating white dwarf

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Chinese astronomers have conducted an asteroseismology study of a newly discovered pulsating white dwarf designated WFST J053009.62+595557.0, or WFST J0530 for short. The new findings, presented January 2 on the arXiv pre-print server,…

17

Sinking boreal trees in the deep Arctic Ocean could remove billions of tons of carbon each year

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Global efforts to reduce pollution will not be enough to mitigate the worst effects of climate change, scientists say. We will also need to extract over 10 gigatons of carbon dioxide from the atmosphere every year for the next century.…

16

Atom-thin, content-addressable memory enables edge AI applications

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Recent advances in the field of artificial intelligence (AI) have opened new exciting possibilities for the rapid analysis of data, the sourcing of information and the generation of use-specific content. To run AI models, current hardware…

Sunday, Jan 11

20

Physicists create resilient 3D solitons in the lab

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For the first time, physicists in Italy have created a 'lump soliton': an extremely stable packet of light waves which can travel through 3D space, and even interact with other solitons without losing its shape.

18

A new AI tool could dramatically speed up the discovery of life-saving medicines

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Researchers in China have unveiled a new AI framework that could accelerate the discovery of new medicines. DrugCLIP can scan millions of potential drug compounds against thousands of protein targets in just a few hours—ten million times…

Saturday, Jan 10

Organic crystals self-heal at cryogenic temperatures via zipping action

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At temperatures where most molecular movement ceases, certain organic crystals begin their self-healing journey.