
Phys.org · 实时热榜
- 01Tropical species near thermal limits as global warming compresses safety margins
With global warming and extreme weather intensifying, can animals raise their thermal tolerance to cope with a continuously warming environment? A joint research project by the Division of Science at Lingnan University and an international research team conducted experiments on tropical intertidal snails that live under the scorching sun.
最高第 1 名07:33 达到07:33 首次观测上榜20:53 观测离榜累计约13小时20分 - 02How changing environments can preserve an ancient microbial survival strategy
A research group led by Tetsuhiro Hatakeyama from the Earth-Life Science Institute (ELSI) at the Institute of Science Tokyo has revealed how a seemingly self-destructive survival strategy could persist in yeast for hundreds of millions of years. By combining population dynamics theory with comparative experimental observations, the team found that alternating periods of nutrient-rich conditions and starvation can stabilize this unusual behavior over evolutionary timescales. The findings were pub
最高第 2 名07:33 达到07:33 首次观测上榜20:53 观测离榜累计约13小时20分 - 03Border crossings shut as heavy snow coats Argentine Andes
Heavy snowfall in the Argentine Andes has forced more than 100 people to evacuate and stalled almost 1,000 trucks on snow-covered roads, while flights were rerouted Monday.
最高第 1 名08:05 达到08:05 首次观测上榜21:25 观测离榜累计约13小时20分 - 04How international aid fragmentation affects corruption in developing countries
An SKKU research team led by Professor Travers B. Child of the SKK Graduate School of Business (SKK GSB) has become the first in the world to use micro-level data to demonstrate that aid fragmentation—the phenomenon in which numerous international aid agencies operate simultaneously in a single region—can deepen administrative corruption in developing countries. The study was conducted jointly with Professor Austin L. Wright of the University of Chicago and Professor Yun Xiao of the University o
最高第 1 名07:49 达到07:49 首次观测上榜21:09 观测离榜累计约13小时20分 - 05Seabirds trade their own survival to raise more chicks after energy-intensive breeding seasons
Wild seabirds that face high energy demands during the breeding season go on to migrate farther and raise more chicks the next year, but at a cost to their own survival. An international team led by researchers from Nagoya University raised the energy cost of flight for some birds and tracked them through the next year of their annual cycle.
最高第 1 名07:01 达到07:01 首次观测上榜20:21 观测离榜累计约13小时20分 - 06When polymers meet primitive membranes: How molecular cooperation may have helped life begin
A new study suggests that simple molecules on early Earth may have worked together to create more stable, cell-like structures, offering fresh clues about one of science's biggest questions: how life began. Led by Dr. Moran Frenkel-Pinter of Hebrew University and her postdoctoral researcher, Dr. Rotem Edri, the research shows that two types of simple molecules, fatty acids and hydroxy acids, can combine to create structures that are stronger and more stable than either molecule can form alone.
最高第 2 名07:49 达到07:49 首次观测上榜21:09 观测离榜累计约13小时20分 - 07Listening to living soil may help people reconnect with nature
Strengthening the bond between people and nature—that is the aim of a German–Dutch EU project involving Oldenburg. The reasoning behind this is that people who feel they are part of the environment are more likely to campaign for its preservation.
最高第 1 名06:45 达到06:45 首次观测上榜19:49 观测离榜累计约13小时4分 - 08New thermodynamic framework explains pressure and edge currents in spinning active particles
Physicists from Heinrich Heine University Düsseldorf (HHU), the Technical University of Darmstadt, Sapienza University in Rome and the University of Camerino (both in Italy) have calculated the fundamental laws of thermodynamics for a gas composed of spinning particles. In the scientific journal Proceedings of the National Academy of Sciences (PNAS), they demonstrate that the pressure of this gas is similar to that of a normal gas but at an elevated temperature. In addition, localized surface cu
最高第 1 名06:29 达到06:29 首次观测上榜19:33 观测离榜累计约13小时4分 - 09Researchers develop model that predicts which Red Sea fish are most likely to invade the Mediterranean
More than 120 fish species have migrated from the Red Sea to the Mediterranean since the Suez Canal opened more than 150 years ago. Now, researchers at Tel Aviv University have developed a statistical model that can predict which species are likely to make the journey next.
最高第 2 名07:01 达到07:01 首次观测上榜20:05 观测离榜累计约13小时4分 - 10Digital revolution forcing archaeology to rethink research data management
Archaeological excavations generate a vast quantity of documents of various types and formats, which constitute a scientific heritage of great value. However, the way this data is organized, documented and preserved remains highly varied. This is the main conclusion of the article "Research data management practices and perspectives among Catalan archaeologists: a qualitative approach," published in the Journal of Documentation.
最高第 1 名08:21 达到08:21 首次观测上榜21:25 观测离榜累计约13小时4分 - 11Kids who own cellphones have poorer reading comprehension scores than those who don't, researchers find
School cellphone bans might seem like a good way to improve learning for elementary school children, but new research published in Behavioral Sciences shows that simply owning a cellphone correlates with worse reading comprehension. Whether a child brings the phone to school made no difference in reading comprehension, the team of UCLA psychologists and researchers found.
最高第 3 名07:01 达到07:01 首次观测上榜20:05 观测离榜累计约13小时4分 - 12Diet reveals what life was like 2,700 years ago in an Italian community: Gender inequality, social status and migration
An international study led by the Universities of Córdoba and Pisa used isotopic analysis to reconstruct the dietary traces left in human remains found in an Italian necropolis, revealing what daily life was like in that community 2,700 years ago. Despite the passage of time, certain patterns of behavior recur: diet, human mobility, gender differences and the role of funerary symbolism in signifying social status.
最高第 1 名09:09 达到09:09 首次观测上榜21:57 观测离榜累计约12小时48分 - 13California wildfire damage risk map uses factors most closely linked to severe property losses
By analyzing 100,000 California Department of Forestry and Fire Protection inspection records from 2013 to 2024, researchers at the University of California, Irvine have identified the key environmental and human factors responsible for the most destructive wildfires, and they have synthesized the knowledge into a high-resolution, actionable fire risk map for the Golden State.
最高第 1 名06:13 达到06:13 首次观测上榜19:01 观测离榜累计约12小时48分 - 14New sensing method measures laser-cutting depth by tracking vaporization recoil
Laser dicing, a technique that uses focused laser pulses to separate individual chips from a semiconductor wafer, is increasingly favored over mechanical blade cutting because it can process delicate, low-strength materials with minimal physical stress. However, achieving proper yield requires precise control over the process.
最高第 1 名09:25 达到09:25 首次观测上榜22:13 观测离榜累计约12小时48分 - 15Molecular switch that activates cell growth signaling may offer more precise route for anticancer therapy
Cells carry their own growth switches. When enough nutrients—amino acids in particular—are available, cells flip this switch on and begin to grow. Researchers at KAIST and Yonsei University have uncovered the molecular mechanism by which amino acid signals activate this cellular growth switch. The findings are expected to open a new avenue for anticancer therapies that target abnormal growth signaling in tumor cells.
最高第 2 名06:45 达到06:45 首次观测上榜19:33 观测离榜累计约12小时48分 - 16Water's local asymmetry drives proton hopping between molecules, simulations reveal
Complex simulations—the most intricate of their kind to date—carried out by an international research team led by scientists at Heidelberg University's Institute for Physical Chemistry, have revealed how water governs the way protons move through it. Using their modeling, researchers from Cambridge (U.K.), Bochum, Dijon (France) and Heidelberg were able to trace, in full quantum detail, the movements of a proton shared among six water molecules. At its core, the work addresses how a proton moves
最高第 2 名08:53 达到08:53 首次观测上榜21:41 观测离榜累计约12小时48分 - 17Seawater samples may offer early clues to changing reef health
Doctors can often detect diseases in humans using minimally invasive methods, like blood or urine tests, before symptoms become severe. Now, researchers at the Woods Hole Oceanographic Institution (WHOI) are applying a similar concept to coral reefs, showing that the water surrounding reefs contains chemical and microbial signals that could reveal changes in ecosystem health long before those changes are visible.
最高第 1 名08:53 达到08:53 首次观测上榜21:41 观测离榜累计约12小时48分 - 18Prolonged stretching reorganizes tissue scaffolds and uncages cell nuclei
How do tissues cope with being stretched for hours or even days? A study led by researchers at the Institute for Bioengineering of Catalonia (IBEC) has uncovered an unexpected answer: Cells radically reorganize their internal scaffolding and, in the process, release their nuclei from a protective keratin network.
最高第 3 名06:45 达到06:45 首次观测上榜19:33 观测离榜累计约12小时48分 - 19How NASA plans to build the Habitable Worlds Observatory
We've been covering the journey of the Habitable Worlds Observatory for some time now. Over the past few years, it's gone from a proposal to a relatively fleshed-out plan for how and what the next Great Observatory should do—in this case, look at and characterize potentially habitable exoplanets.
最高第 2 名06:29 达到06:29 首次观测上榜19:01 观测离榜累计约12小时32分 - 20Q&A: Training the next generation of coastal scientists
Burying underwear in soil isn't a typical science lesson. But for students on Hornby Island, it's one way they can learn how seaweed supports local ecosystems.
最高第 1 名09:41 达到09:41 首次观测上榜22:13 观测离榜累计约12小时32分 - 21Extreme heat increases the risk of workplace injuries across Canada
Heat warnings have stretched across Canada this summer, from Atlantic Canada and southern British Columbia to the Prairies, central Canada and the Northwest Territories.
最高第 1 名10:13 达到10:13 首次观测上榜22:29 观测离榜累计约12小时16分 - 22Microscopic atlas reveals how citrus Huanglongbing disease progresses through trees
What happens inside a citrus tree long before leaves turn yellow, roots decline, and fruit quality suffers? Researchers from the University of Florida Citrus Research and Education Center—Diann S. Achor, Camila Ribeiro, Jinyun Li and Nian Wang—have created a detailed microscopic atlas that provides one of the clearest pictures to date of how citrus huanglongbing (HLB), also known as citrus greening disease, develops over time and affects different parts of a tree.
最高第 2 名06:13 达到06:13 首次观测上榜18:13 观测离榜累计约12小时 - 23Thin films 'dance' with substrates that are no longer inert, opening path toward 3D chips
Many of today's electronic devices—from the semiconductors in your cell phone to the photovoltaic cells in your solar panels—are built on thin-film substrates. The thin film is an electrically conductive material, while the substrate is an inert material. Or is it?
最高第 3 名06:13 达到06:13 首次观测上榜18:13 观测离榜累计约12小时 - 24Q&A: 'Lawbreakers' or 'like us'? Exploring how partisans think about immigration
Interviews with political activists in Southern California showed stark differences in how migrants are viewed: either "like us" and deserving of rights or lawbreakers undeserving of social belonging and benefits.
最高第 1 名10:45 达到10:45 首次观测上榜22:45 观测离榜累计约12小时 - 25What are 'fire clouds', the ominous phenomenon seen in France?
Firefighters battling devastating fires in France have had to contend with a new threat: immense fire clouds that create their own wind and even lightning that can spark fresh blazes.
最高第 1 名10:29 达到10:29 首次观测上榜22:29 观测离榜累计约12小时 - 26Q&A: What influences teens' career expectations?
Adolescents in both the United States and the United Kingdom have become increasingly ambitious about their future careers over the past two decades, according to a new study by researchers at Penn State. The team also found that family socioeconomic background plays a different role depending on the types of occupations students expect to pursue, with relatively small socioeconomic differences among American students aspiring to the highest-status careers.
最高第 1 名11:01 达到11:01 首次观测上榜22:45 观测离榜累计约11小时44分 - 27Harmful bugs can thrive in your kitchen sponge for weeks, and you won't be able to tell
That kitchen sponge sitting by your sink is not as innocent as it looks. It could be harboring Salmonella enteritidis, E. coli or Staphylococcus aureus—and there's no way to tell just by looking at it or smelling it.
最高第 1 名05:41 达到05:41 首次观测上榜17:09 观测离榜累计约11小时28分 - 28Membrane nanostructures reshape in water, revealing route to better ion transport
Next-generation energy devices like fuel cells and water electrolyzers depend on ion-exchange membranes that allow only water and certain ions to pass through.
最高第 1 名05:57 达到05:57 首次观测上榜17:25 观测离榜累计约11小时28分 - 29Purple corn offers a stable natural alternative to artificial food dyes
University of Missouri researchers are turning a unique variety of corn into an effective natural alternative to artificial food dyes.
最高第 2 名05:41 达到05:41 首次观测上榜16:53 观测离榜累计约11小时12分 - 30Low-cost spray can help tomatoes grow in salty soils
A simple, low-dose leaf spray could give farmers a practical new tool to keep growing tomatoes on land that salt has rendered increasingly unproductive, according to a study led by a researcher at The University of Texas at El Paso.
最高第 3 名05:41 达到05:41 首次观测上榜15:01 观测离榜累计约9小时20分 - 31Modeling reveals Sydney's 1789 smallpox outbreak killed as many as 220,000 indigenous Australians
Groundbreaking modeling has revealed that as many as 220,000 Indigenous Australians died in a devastating 1789 smallpox outbreak that originated in Sydney, tracing its origins to the First Fleet. Soon after British ships arrived, smallpox swept through First Nations communities in the Sydney area, and many died as a result. The study found that the epidemic had a devastating demographic impact and ramifications for how First Nations people resisted colonization and their capacity to manage the c
最高第 1 名15:01 达到15:01 首次观测上榜22:45 观测离榜累计约7小时44分 - 32A magnitude 7.1 earthquake shakes part of southern Japan and a tsunami advisory is issued
An earthquake registering a preliminary magnitude of 7.1 shook Kumamoto on Japan's southern main island of Kyushu late Tuesday afternoon and a tsunami advisory was issued, the Japan Meteorological Agency said.
最高第 1 名16:53 达到16:53 首次观测上榜23:01 观测离榜累计约6小时8分 - 33France and Spain race to contain fires before new heat wave
Firefighters in France and Spain rushed to contain the worst wildfires in living memory Tuesday, seizing crucial hours before the arrival of another wave of searing temperatures.
最高第 1 名17:25 达到17:25 首次观测上榜23:33 观测离榜累计约6小时8分 - 34Scientists cut and rebuild molecules from the inside to create new chiral nanocarbons
Nanocarbons are molecular-scale carbon structures considered to be the building blocks for next-generation materials. Until now, scientists have built them by fusing small, flat carbon molecules together at their edges. Modifying the inside of a molecule was considered challenging because inner bonds are locked into flat, rigid structures that resist change.
最高第 1 名17:09 达到17:09 首次观测上榜23:01 观测离榜累计约5小时52分 - 35Hubble shows star formation in Andromeda galaxy is winding down
A new study using data from NASA's Hubble Space Telescope finds that star formation in the nearby Andromeda galaxy has undergone a 500-million-year decline, with an even steeper drop in the last 40 million years. Andromeda, a spiral galaxy comparable in size to our Milky Way, is close enough to be seen with the unaided eye from areas with dark skies. Located about 2.5 million light-years from Earth—practically our cosmic backyard—Andromeda offers an opportunity for astronomers to examine its ste
最高第 1 名05:25 达到05:25 首次观测上榜11:01 观测离榜累计约5小时36分 - 36Record snow drought drives water-hauling crisis for Rocky Mountain ranchers
As water shot into an open stock tank atop a high-country mesa, a trickle soaked the dusty earth below. Scott Snyder rose from the shade to fasten a hose and stop the spillage.
最高第 1 名18:13 达到18:13 首次观测上榜23:49 观测离榜累计约5小时36分 - 37AI-powered camera system offers low-cost way to monitor bumblebees, potentially other insects
Researchers have developed a low-cost, semi-automated, AI-driven method that uses remote cameras to survey bumblebees and potentially other insects. The new tool could have important implications for efforts to conserve declining insect populations. Several bumblebee species have been petitioned to be listed under the Endangered Species Act.
最高第 2 名18:13 达到18:13 首次观测上榜23:33 观测离榜累计约5小时20分 - 38Cracking the code: Can AI help us decipher ancient languages?
Every ancient language that has ever been deciphered needed an anchor. Usually that's a bilingual text, like the Rosetta Stone, or a known relative to compare it to. Linear A, the writing system of the Bronze Age Minoan civilization on the Greek island of Crete, has neither.
最高第 2 名05:25 达到05:25 首次观测上榜10:45 观测离榜累计约5小时20分 - 39Burning soil and peat drove most emissions in Canada's record 2023 wildfire season, study finds
Most of the carbon released during Canada's record-breaking 2023 wildfire season came from burning soil and peat, rather than trees, according to new research from McMaster University.
最高第 3 名05:25 达到05:25 首次观测上榜10:29 观测离榜累计约5小时4分 - 40New quantum chip architecture could use built-in vibrations to link distant qubits
A new concept from Warwick researchers could help solve one of the biggest challenges to building large-scale quantum computers: enabling communication between vast numbers of quantum bits (qubits) over long distances across a single chip.
最高第 4 名05:25 达到05:25 首次观测上榜10:13 观测离榜累计约4小时48分 - 41Moon's thick crust could amplify elusive gravitational-wave signals
Gravitational waves are tiny ripples in the fabric of spacetime that are produced when massive objects in the cosmos accelerate or collide. By detecting these waves, astrophysicists can study various cosmic events, including black hole mergers, neutron star collisions and the early evolution of the universe.
最高第 2 名19:01 达到19:01 首次观测上榜23:49 观测离榜累计约4小时48分 - 42Benefits of middle school program trickle down to next generation
A substance-use prevention program delivered to students and their families in the sixth and seventh grades led to wide-ranging benefits well into adulthood and—for those who became parents—even positively affected their children, according to a new study by researchers in the Penn State College of Health and Human Development.
最高第 1 名19:01 达到19:01 首次观测上榜当日结束时仍在榜累计约4小时48分 - 43How invasive rats rewire coral reef food webs to create winners and losers
Invasive rats on tropical islands are creating winners and losers among the tiny underwater animals near the bottom of the food chain that inhabit surrounding coral reefs. Scientists say the changes to these marine ecosystems can rewire food chains on the reefs.
最高第 1 名05:09 达到05:09 首次观测上榜09:41 观测离榜累计约4小时32分 - 44Accepting free will doesn't exist could make us less hateful and ashamed
In his 2023 bestseller, Determined, neuroscientist Robert Sapolsky argued that the interaction of biology and environment leaves no room for free choice. Philosopher and neuroscientist Sam Harris puts the case more bluntly: "free will is an illusion."
最高第 1 名00:05 达到00:05 首次观测上榜04:21 观测离榜累计约4小时16分 - 45Christmas in July: Engineers capture gigapixel 3D video of snowflakes
For the first time, researchers can witness nanometer-scale thickness changes across a melting snowflake with a compact, lensless chip that captures gigapixel video at 30 frames per second across centimeter-scale fields.
最高第 2 名00:05 达到00:05 首次观测上榜04:21 观测离榜累计约4小时16分 - 46Biodegradable implant can deliver targeted cancer immunotherapy while protecting healthy tissue
Scientists at Houston Methodist Research Institute have developed a biodegradable implant designed to deliver cancer-fighting immunotherapy drugs directly into tumors over an extended period, a strategy that could improve treatment effectiveness while reducing side effects.
最高第 1 名04:53 达到04:53 首次观测上榜09:09 观测离榜累计约4小时16分 - 47Scientists repair damaged plastics at the molecular level, boosting recycling potential
Plastic recycling could become far more effective thanks to a new technique that restores the strength of damaged engineering plastics by repairing them at the molecular level.
最高第 2 名19:33 达到19:33 首次观测上榜当日结束时仍在榜累计约4小时16分 - 48AI models explain 17% of earnings-day stock moves, up from 5%
To explain the stock market's reaction to earnings results, investors and other market participants have used a standard tool for decades: the earnings surprise.
最高第 1 名19:33 达到19:33 首次观测上榜当日结束时仍在榜累计约4小时16分 - 49NASA science soars during August total solar eclipse
Each time the moon covers the sun during a total solar eclipse—darkening daytime skies and briefly revealing the sun's ethereal outer atmosphere, the corona—it presents new opportunities to better understand our star and its influence on Earth.
最高第 3 名19:33 达到19:33 首次观测上榜当日结束时仍在榜累计约4小时16分 - 50Unveiling fungal plant infection strategies to reshape the future of crop protection
Fungal diseases are among the leading causes of crop destruction, threatening global food security and agricultural livelihoods. Among phytopathogenic fungi, anthracnose fungi and the rice blast fungus are known to share a common infection strategy. They develop specialized melanized infection structures known as appressoria and exhibit melanized appressorium-mediated entry (MAE) into plant tissues. However, growing evidence suggests that some fungi may not follow this conventional model, raisin
最高第 2 名05:09 达到05:09 首次观测上榜09:25 观测离榜累计约4小时16分



































