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Phys.org · 实时热榜

HISTORY2026年7月31日124 不同热搜
07/2308/21 有历史数据
DAILY UNIQUE TOPICS124 个热搜
  1. 01
    Natural emulsion manages to stop fungus that threatens up to 80% of cocoa production

    An innovative formulation based on natural compounds could become a sustainable alternative for controlling moniliasis, one of the most devastating diseases affecting cocoa in Latin America. A new study shows that emulsions combining fengycin—a lipopeptide produced by bacteria of the genus Bacillus—with essential oils can significantly inhibit the growth of the fungus Moniliophthora roreri, responsible for losses that can exceed 70–80% of the harvest.

    最高第 206:45 达到06:45 首次观测上榜22:13 观测离榜累计约15小时28分
  2. 02
    Pacific Ocean pattern helps explain diverging wildfire trends in US and Australia

    Two of the world's most fire-prone regions have followed strikingly different wildfire trajectories despite both experiencing a warming climate. Burned forest area has surged across the U.S. Southwest, while eastern Australia has not seen the same increase.

    最高第 107:01 达到07:01 首次观测上榜22:29 观测离榜累计约15小时28分
  3. 03
    Rural runoff funnels hurricane floodwater toward coastal cities, model finds

    Coastal cities are at increasing risk of compound flooding events, such as when heavy rainfall and storm surges occur simultaneously during hurricanes. However, the processes that contribute to urban compound flooding aren't well understood at smaller scales.

    最高第 106:45 达到06:45 首次观测上榜22:13 观测离榜累计约15小时28分
  4. 04
    Bacteria build a mineral shield that could help marine infrastructure resist rust

    Researchers at Reichman University have developed a biological method for protecting marine infrastructure from corrosion caused by prolonged exposure to seawater. The study, published in Cell Reports Physical Science, presents an environmentally friendly alternative to the chemical corrosion inhibitors currently used to protect metals—materials that can be both polluting and costly.

    最高第 107:33 达到07:33 首次观测上榜22:45 观测离榜累计约15小时12分
  5. 05
    Female birds have shorter lifespans than male birds across 35 North American species, researchers find

    Birds have a lot to do in their short lives: defend territories, build nests, raise chicks and feed themselves. But the toll of these activities may be greater for female birds than for male birds. A new study by UCLA ornithologists has found that female birds have lower survival rates than males. The research is the first to study female bird survival in a large dataset and shows that the phenomenon is more widespread than previously recognized. In mammals, females generally have higher surviva

    最高第 306:45 达到06:45 首次观测上榜21:41 观测离榜累计约14小时56分
  6. 06
    Risks of debris between the Earth and the moon for future exploration

    Cislunar space has become the focal point of considerable interest and strategic planning because of the many proposed missions to send crews to the moon in the next decade. These include NASA's Artemis program, China and Russia's International Lunar Research Station (ILRS), the European Space Agency's Argonaut program and others. The long-term goals of these programs include creating infrastructure between Earth and the moon that will facilitate continued exploration and even development.

    最高第 108:05 达到08:05 首次观测上榜23:01 观测离榜累计约14小时56分
  7. 07
    How an embryo draws the line between body and germline

    Every embryo of an organism that reproduces sexually faces an early and consequential decision: which of its cell lineages will make up the mortal body, and which will become the germline, the lineage that eventually makes eggs or sperm and carries genetic information to the next generation. Get this wrong, and an organism can live but cannot reproduce and, evolutionarily, ceases to exist.

    最高第 106:29 达到06:29 首次观测上榜21:25 观测离榜累计约14小时56分
  8. 08
    A thermal camera trick could let LIGO see twice as far

    There's a nice kind of irony buried in this story: One of the most sensitive instruments ever built, capable of measuring distortions smaller than the width of a proton, has been quietly held back by something as mundane as heat. And the fix, it turns out, is not some exotic new sensor but a thermal camera you could genuinely buy off the shelf.

    最高第 207:33 达到07:33 首次观测上榜22:29 观测离榜累计约14小时56分
  9. 09
    Photonic time crystals unlock ultrafast control of light in the terahertz range

    An international team of researchers from École Polytechnique, Collège de France and Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has achieved a world first: the experimental realization of an all-optical photonic time crystal (PTC), a material whose optical properties can be strongly and periodically modulated over ultrafast timescales.

    最高第 107:49 达到07:49 首次观测上榜22:45 观测离榜累计约14小时56分
  10. 10
    Scientists have found a new way molecules can cooperate at room temperature

    What if glowing molecules could synchronize, much like fireflies flashing in unison? Researchers have discovered that molecules confined within tiny gold nanostructures can behave collectively, coordinating their interactions even under conditions where this was previously thought impossible. The finding challenges long standing assumptions about how optical coherence forms and opens new possibilities for highly sensitive sensors, molecular photonics, and future quantum technologies capable of o

    最高第 106:13 达到06:13 首次观测上榜21:09 观测离榜累计约14小时56分
  11. 11
    Bacteria may identify a virus without recognizing its DNA

    When a virus enters a cell, its top priority is to replicate its genome rapidly, creating new viruses to infect elsewhere. The host has the opposite priority: to destroy the virus, ideally before it can do any harm. Biology has evolved diverse tactics for viral recognition and destruction, but they share a common theme—sensing that an invading viral genome is present in a cell.

    最高第 206:29 达到06:29 首次观测上榜21:09 观测离榜累计约14小时40分
  12. 12
    Uncovering the structure of the poxvirus 'portal complex'

    Poxviruses have a long history in human disease as well as medicine: The first-ever vaccine was developed to protect against smallpox, which has since been eradicated. Despite this, scientists still don't fully understand how poxviruses infect and replicate inside our cells. Recent outbreaks of mpox highlight an urgent need to better understand poxvirus biology.

    最高第 306:13 达到06:13 首次观测上榜20:53 观测离榜累计约14小时40分
  13. 13
    Turkey confronts growing wildfires on tourist coasts

    Hundreds of Turkish firefighters on Thursday battled to contain wildfires spreading near key tourist regions on the country's Mediterranean coast.

    最高第 206:13 达到06:13 首次观测上榜20:53 观测离榜累计约14小时40分
  14. 14
    Likelihood of wildfires in Southern Europe has doubled since the 80s, study shows

    Summer days featuring conditions that promote wildfire ignition, intensity and spread have more than doubled across large parts of the Iberian Peninsula, France, Italy and Greece since 1981, according to a study in Scientific Reports. The findings suggest that hotter, drier weather is increasing wildfire risk across Southern Europe, despite fewer fires occurring in the region since the 1980s.

    最高第 105:57 达到05:57 首次观测上榜20:21 观测离榜累计约14小时24分
  15. 15
    Scientists solve mystery of how muscle cells grow and stay healthy

    In a study published in Nature Communications biophysicists unravel the mystery of how muscles form at the molecular level and maintain their function. The findings may help design treatments for muscle diseases such as dilated cardiomyopathy, one of the leading causes of heart failure.

    最高第 105:41 达到05:41 首次观测上榜20:05 观测离榜累计约14小时24分
  16. 16
    Waste CO₂ converts into graphite through a newly observed two-step process

    Graphite, the carbon core of a humble No. 2 pencil, is also an essential component in technologies such as batteries, smartphones, laptops and industrial power equipment. Today, nearly all of this critical mineral must be mined and processed and, in the United States, imported.

    最高第 109:09 达到09:09 首次观测上榜23:33 观测离榜累计约14小时24分
  17. 17
    Study investigates how seven different Central European tree species respond to metal-contaminated soils

    For centuries, artisanal and industrial activities have left many soils polluted with excessive levels of heavy metals such as zinc, cadmium, copper and lead, posing a threat to the environment and human health. Cleaning up polluted sites is often difficult and expensive, especially when larger areas are affected. As a result, many sites need to be managed in a way that prevents pollutants from washing away into groundwater or neighboring ecosystems.

    最高第 105:25 达到05:25 首次观测上榜19:33 观测离榜累计约14小时8分
  18. 18
    Southern Europe 'becoming more flammable' in hotter climate, experts say

    Southern Europe is "becoming more flammable," with the number of summer days primed for extreme fire conditions more than doubling since 1981, a new study found Thursday.

    最高第 205:41 达到05:41 首次观测上榜19:49 观测离榜累计约14小时8分
  19. 19
    Survey highlights AI's potential to advance accessibility in work and learning

    As artificial intelligence becomes part of how people work, learn and solve problems, a new University of Phoenix survey conducted by The Harris Poll finds that recent working learners see meaningful opportunities for AI to support accessibility.

    最高第 108:53 达到08:53 首次观测上榜23:01 观测离榜累计约14小时8分
  20. 20
    Quantum spin effects may enhance one-way electrical transport in chiral magnets

    Quantum fluctuations influence direction-dependent electrical transport in chiral magnets, researchers from Science Tokyo report. In chiral magnetic systems, electric current flows differently depending on its direction, but the role of quantum effects in this behavior has remained unclear. Through theoretical analysis, the researchers showed that chiral magnetic systems exhibit logarithmic temperature dependence at low temperatures, offering new insights into electron transport in magnetic mate

    最高第 305:41 达到05:41 首次观测上榜19:33 观测离榜累计约13小时52分
  21. 21
    Probing binary stars in the Small Magellanic Cloud with the JWST

    The formation and evolution of individual stars in a galaxy shape the evolution of the galaxy itself. Stars and stellar remnants make up the vast majority of a galaxy's mass, so it's not surprising that the stellar population affects the evolution of galaxies. In the Milky Way's disk and bulge, stars and dead stars make up about 85% of the baryonic mass.

    最高第 109:41 达到09:41 首次观测上榜23:33 观测离榜累计约13小时52分
  22. 22
    Flash droughts can pull 'alarming' amounts of moisture from the landscape and intensify wildfires

    When catastrophic wildfires capture global headlines, such as the unprecedented blazes sweeping through southern Europe this summer or the devastating 2019–20 "Black Summer" in Australia, they are almost always preceded by severe drought. Dry vegetation and parched landscapes are necessary ingredients for infernos.

    最高第 205:25 达到05:25 首次观测上榜19:01 观测离榜累计约13小时36分
  23. 23
    New report highlights health of the UK's plankton communities

    Researchers from the University of Plymouth have led the production of a new report highlighting the impact of climate change on marine plankton and pelagic habitats in U.K. waters. Published by the Marine Climate Change Impacts Partnership (MCCIP), the report discusses the latest evidence showing major large-scale shifts already happening in plankton communities.

    最高第 110:45 达到10:45 首次观测上榜23:49 观测离榜累计约13小时4分
  24. 24
    Learning to better understand bone-like minerals

    A University of California San Diego research team has found a better way to understand and stabilize hydroxyapatite, the calcium phosphate mineral that makes up much of our teeth and bones. By adding tiny amounts of europium, a rare-earth element that mimics calcium, the team discovered a way to make the material potentially more useful for medical imaging.

    最高第 111:33 达到11:33 首次观测上榜23:49 观测离榜累计约12小时16分
  25. 25
    ATPγS recycling opens cheaper pathways to increased drug stability

    Pharmaceutical drugs often rely on chemical compounds found in the body. Take phosphate, a common compound cells use as a chemical switch. In a process called phosphorylation, cells can add a phosphate to a molecule and turn its function on. When the function is no longer needed, cells can remove the phosphate through dephosphorylation, turning the molecule back off.

    最高第 105:09 达到05:09 首次观测上榜17:09 观测离榜累计约12小时
  26. 26
    Italy's Po River valley on drought alert

    Italian authorities raised the drought alert level to "high" Thursday in the Po Valley, home to the country's longest river, because of worsening conditions and unfavorable weather forecasts.

    最高第 205:09 达到05:09 首次观测上榜17:09 观测离榜累计约12小时
  27. 27
    Redistributing sunlight boosts algae biomass productivity sixfold

    Algae are increasingly being explored as sustainable "living factories" that can convert sunlight and carbon dioxide into renewable fuels, plastics, pharmaceuticals and other valuable products.

    最高第 305:25 达到05:25 首次观测上榜17:09 观测离榜累计约11小时44分
  28. 28
    Spectroscopy system detects aerosols using light reflected from traffic signs and tree trunks

    Researchers have developed and tested an infrared spectroscopy system that can rapidly detect chemical aerosols from a distance by using light reflected from common surfaces such as traffic signs, tree trunks or painted surfaces. The new method could make it possible to detect hazards without complicated instruments, helping improve safety and ease operations at industrial sites, public venues and other high-risk locations.

    最高第 104:53 达到04:53 首次观测上榜16:05 观测离榜累计约11小时12分
  29. 29
    Combined rattlesnake proteins prove 10 times more potent than current antivenom in lab tests

    University of Maryland researchers discovered a new approach to treating venomous snakebites—using the same toxin-blocking proteins that snakes evolved to protect themselves. The team found that specific combinations of blood proteins from western diamondback rattlesnakes provided unprecedented neutralizing power against the venom of multiple dangerous snake species.

    最高第 204:53 达到04:53 首次观测上榜15:49 观测离榜累计约10小时56分
  30. 30
    Firefighters battle to contain deadly Crete blaze in Greece

    Greece on Thursday battled to contain a spate of wildfires, including one on the tourist island of Crete that forced thousands of residents and holidaymakers to evacuate and left three firefighters dead.

    最高第 304:53 达到04:53 首次观测上榜15:17 观测离榜累计约10小时24分
  31. 31
    The last trio: S.Africa's zoo elephants await their fate

    The last three elephants still in a traditional South African zoo entered their enclosure in single file, with fruit and vegetables scattered on the ground to encourage natural foraging.

    最高第 115:17 达到15:17 首次观测上榜当日结束时仍在榜累计约8小时32分
  32. 32
    Turkey battles wind-fueled wildfires on tourist coasts

    Hundreds of Turkish firefighters battled Thursday to contain wind-fueled wildfires spreading near key tourist regions on the country's Mediterranean coast.

    最高第 115:49 达到15:49 首次观测上榜当日结束时仍在榜累计约8小时
  33. 33
    Spain safari park animals grazed calmly amid 'terror' of fire

    The bison carried on grazing peacefully as the flames approached, imperturbable despite the fires ravaging the land around their wildlife park west of Madrid.

    最高第 116:05 达到16:05 首次观测上榜当日结束时仍在榜累计约7小时44分
  34. 34
    Cesium atoms and quantum dots generate indistinguishable photons for modular quantum networks

    Large-scale quantum communication networks require both reliable quantum memories and coherent single-photon sources that can exchange quantum information efficiently. A coherent source of single photons with narrow linewidth, high brightness, spectral uniformity and compatibility with quantum memories is necessary. While a variety of single-photon sources, such as quantum dots (QDs) and atoms in warm vapor cells, have been developed in recent years, each has inherent limitations, making a scala

    最高第 104:21 达到04:21 首次观测上榜11:33 观测离榜累计约7小时12分
  35. 35
    Math shows why your vote may not count the way you think it does

    Mathematicians have shown that completely fair elections are—in a sense—impossible. No electoral system can guarantee both that local votes translate directly into local seats and that total seat distribution matches overall vote shares—not without an indefinitely growing parliament.

    最高第 117:09 达到17:09 首次观测上榜当日结束时仍在榜累计约6小时40分
  36. 36
    The Arctic Ocean keeps permafrost carbon firmly locked

    Permafrost in the Arctic stores large quantities of organic carbon. When frozen ground thaws or coastal sections erode, this carbon can enter the sea, where microorganisms can break it down and convert it into climate-damaging greenhouse gases. The extent to which this carbon actually enters the atmosphere, however, and how much remains in the ocean have hardly been quantified to date.

    最高第 217:09 达到17:09 首次观测上榜当日结束时仍在榜累计约6小时40分
  37. 37
    Inverting the seminar to recover what scientific papers leave out

    A scientific paper reads as a clean progression from question to result. And yet, research almost never happens that way. Experiments fail, conversations redirect projects, and none of it survives into print. When the founders of a field retire, their tacit knowledge goes with them, and nothing records that it existed.

    最高第 317:09 达到17:09 首次观测上榜当日结束时仍在榜累计约6小时40分
  38. 38
    France, Spain eye wildfire reprieve as other blazes start up in Europe

    France and Spain on Thursday glimpsed a reprieve from some of the worst wildfires in living memory, which have sent hundreds of thousands of people fleeing—among them Hollywood star George Clooney and his wife, Amal.

    最高第 204:21 达到04:21 首次观测上榜10:45 观测离榜累计约6小时24分
  39. 39
    Mammoth bones found on parched bed of Danube in Bulgaria

    Sinking water levels in the Danube River have unveiled mammoth bones in Bulgaria and could lead to further discoveries, a local museum director told AFP on Thursday.

    最高第 304:21 达到04:21 首次观测上榜09:41 观测离榜累计约5小时20分
  40. 40
    Ancient Chinese seeds spanning 5,000 years train AI to ease archaeology's specialist bottleneck

    Ancient plant seeds provide important archaeological evidence for studying the evolution of human civilization. Lingnan University and Shandong University have jointly developed the world's first artificial intelligence (AI) archaeological system dedicated to identifying ancient Chinese plant seeds. The system emulates the identification process of archaeobotanical experts and achieves a classification accuracy of more than 90%.

    最高第 104:05 达到04:05 首次观测上榜08:53 观测离榜累计约4小时48分
  41. 41
    Electrically controlled magnetic switching shows promise for next-gen cryogenic devices

    Researchers at the Indian Institute of Science (IISc) have demonstrated a new way of switching a material between two fundamentally different magnetic states using an electric current. The discovery could pave the way for compact, energy-efficient electronic devices that store information, perform logic operations and even interface with future quantum computers.

    最高第 404:21 达到04:21 首次观测上榜09:09 观测离榜累计约4小时48分
  42. 42
    Reenvisioning sexual health with perspectives from the Global South

    Sexual and reproductive health has largely been shaped by perspectives from wealthier developed nations in the Global North. To correct this imbalance, public health experts call for centering Global South knowledge, lived experience and culturally grounded understandings of sexuality—including sexual pleasure.

    最高第 119:01 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
  43. 43
    Scientists advance space agriculture for future moon and Mars missions

    Space isn't known for rich soil or ideal agricultural conditions anywhere in the solar system. Yet amid extreme temperatures and vast distances, multidisciplinary teams at USF's Aerospace: Science, Technology, Research and Applications Center (ASTRA) are collaborating on sustainable space agriculture projects with potential applications back on Earth.

    最高第 100:05 达到00:05 首次观测上榜04:21 观测离榜累计约4小时16分
  44. 44
    Neutron star collisions may forge gold more slowly than expected

    Where do gold, platinum and uranium come from? This question has fascinated astrophysicists and nuclear physicists for decades. A research team from Technische Universität Darmstadt has now taken an important step toward understanding the origin of heavy elements. Their findings are published in Physical Review Letters.

    最高第 200:05 达到00:05 首次观测上榜04:21 观测离榜累计约4小时16分
  45. 45
    Two independent studies push semiconductor qubits towards practical scales

    Semiconductor spin qubits are one of the most promising building blocks for future quantum computers, but turning them into a working, large-scale quantum computer has so far proven difficult. For now, two big questions remain open: how to connect qubits that aren't sitting right next to each other, and how to control huge numbers of them without an unmanageable tangle of wiring.

    最高第 219:33 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
  46. 46
    Exposing the hidden toll of litigation

    A James Cook University study is challenging the belief that the greatest cost of going to court is losing a case, arguing the legal process itself can leave lasting psychological scars.

    最高第 119:33 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
  47. 47
    Scabies can kill animals like the beloved wombat. What's the best way to diagnose it?

    Constant scratching, bumpy skin and tufts of lost fur. Those are just some of the signs that an animal has scabies, a severe and potentially fatal skin disease caused by tiny mites (Sarcoptes scabiei) that burrow into the skin.

    最高第 100:00 达到当日首次采集时已在榜04:05 观测离榜累计约4小时6分
  48. 48
    Surface engineering advances mitochondrial transplantation as a potential therapeutic strategy

    Inside almost every cell in our bodies are tiny structures called organelles that keep us alive and functioning. Among these are many bean-shaped mitochondria, often referred to as the cell's power plants because they generate the energy our bodies need to survive. When mitochondria stop working properly, the consequences can be severe, contributing to diseases that affect the brain, heart and other vital organs.

    最高第 200:00 达到当日首次采集时已在榜04:05 观测离榜累计约4小时6分
  49. 49
    Satellite imagery could protect trees from devastating moth outbreaks

    Satellite-derived maps of defoliation caused by European spongy moths—a devastating U.S. forest pest that consumes the leaves of a wide variety of trees—offer a promising solution for tracking where and when to spray and for identifying large-scale trends and conditions that lead to pest outbreaks, according to a new study.

    最高第 101:09 达到01:09 首次观测上榜05:09 观测离榜累计约4小时
  50. 50
    Tree cover is key to cooling cities

    Weather measurements in Leeds have shown that many green spaces, such as parks, gardens and forests, were cooler than surrounding urban environments, also known as gray spaces.

    最高第 119:49 达到19:49 首次观测上榜当日结束时仍在榜累计约4小时