The DAMPE collaboration has directly observed charge-dependent spectral softening of five primary cosmic-ray nuclei, confirming the Peters cycle model. This observation suggests a nearby cosmic-ray accelerator with a charge-dependent energy limit, providing new insights into cosmic-ray physics.
Researchers developed an additive design strategy to control crystallization in all-perovskite tandem solar cells, achieving a certified power conversion efficiency of 30.3%. The strategy promotes homogeneous nucleation and uniform crystal growth, improving film uniformity and reducing defects.
The LHAASO collaboration has detected ultra-high-energy (UHE) gamma rays from a gamma-ray binary system, LS I +61° 303. The discovery suggests that high-energy protons are accelerated and collide with the dense surrounding stellar wind, producing these UHE gamma rays. This finding provides critical evidence for gamma-ray binaries as po...
A new study led by Prof. YAN Xiaoyuan finds that most nitrogen gas emissions from rice paddies originate from soil organic nitrogen, rather than applied fertilizers. The researchers propose a novel mechanism to explain this phenomenon, suggesting that fertilizer activates soil nitrogen pools, indirectly driving larger nitrogen losses.
The LHAASO discovery reveals an astonishingly efficient particle accelerator powered by PSR J1849-0001, exceeding theoretical limits and challenging current theories of particle acceleration. The system's gamma-ray luminosity is several times higher than that of the Crab Nebula.
A recent study by Chinese researchers has quantified lake carbon dioxide emissions in China, finding a significant increase of 24% over the past two decades. The study highlights the importance of high-resolution monitoring to refine lake carbon budgets and inform effective climate mitigation policies.
The discovery of seven millimeter-sized phosphatized fossils from the early Fortunian Kuanchuanpu Formation provides evidence of annelid body fossils from Cambrian Orsten-type fossil localities. The findings suggest that early annelids were polychaetes, supporting the hypothesis that polychaete morphologies were primitive among annelids.
Researchers cloned novel BB resistance gene Xa48 in indica rice variety Shuangkezao, revealing molecular mechanism of BB resistance. The study provides foundation for breeding high-yielding disease-resistant rice varieties and improving crop disease resistance.
A high-precision Human Immune Aging Clock (HIAC) has been developed to quantify immunosenescence and identify actionable intervention targets. The study identified RUNX1 as a functional 'brake' on T-cell senescence, and found that individuals with decelerated immune aging displayed a more youthful immune profile.
Researchers have cloned a key gene that determines whether wild rice grows as a perennial. The discovery reveals changes in the expression pattern of this gene underlie the transition of rice from perennial to annual during domestication.
The study completes the nicotine biosynthesis pathway and reveals a five-component dynamic metabolon that carries out chemical reactions to produce nicotine. This discovery establishes a new synthetic biology paradigm for scalable production of high-value natural products with defined stereochemistry.
A research team from the Chinese Academy of Sciences has developed a comprehensive model simulating the present-day dynamics of western North America's lithosphere and convecting mantle. The study reveals that magma beneath supervolcanoes originates in the shallow asthenosphere, challenging traditional hypotheses about magma generation.
A research team identified distinct subregions within the default mode network (DMN) that act as senders and receivers of information, enabling flexible shifts between perception and memory-driven thought. The study reveals that the DMN is not functionally uniform but composed of subregions with distinct connectivity biases.
A new study identifies phengite as a key carrier of halogens into the deep mantle, resolving a long-standing contradiction between shallow and deep halogen enrichment. Phengite transports fluorine and chlorine to depths of about 330 km, shedding light on diamond formation and Earth's chemical evolution.
A research team has discovered how mechanosensitive ion channels trigger the selective breakdown of damaged ER fragments via calcium signaling. This process involves the coordinated action of ER-phagy receptor FAM134B and lipidated LC3, and has implications for understanding diseases associated with ER dysfunction.
A study using Arabidopsis revealed that germline segregation occurs earlier than previously thought, with some cells segregating during inflorescence meristem formation. This finding supports Weismann's germ plasm theory and provides insight into how plants balance developmental plasticity with safeguarding genetic integrity.
Early land vertebrates exhibited distinct patterns of body size evolution, with amniote-lineage land vertebrates experiencing a relaxation of constraints, enabling them to expand their maximum body size limit. Lissamphibian precursors showed stronger constraints on body size evolution and relied on cutaneous CO2 excretion.
Researchers developed a method to predict how metal strain influences adsorption energies and reaction barriers, enabling the design of strain-engineered catalysts with desired properties. They found that electronegativity is closely correlated with the energetic response to lattice strain.
A comprehensive phylogeny of China's vascular plants reveals a hidden global biodiversity hotspot in Central China. The region supports over 14,000 vascular plant species and at least 2,024 endemic plant species, meeting the criteria for global biodiversity hotspot designation.
Researchers found that clearing intestinal commensal bacteria improves delivery efficiency of various carriers, including polymeric nanoparticles and viral vectors. This study offers a new approach to enhance therapeutic effects in tumor chemotherapy and gene therapy.
Researchers developed an innovative colloidal chemistry strategy to enhance the performance of all-perovskite tandem solar cells, achieving a power conversion efficiency of 29.76%. The unified carboxylate-based modulator system regulates nucleation dynamics, suppressing phase segregation and promoting uniform crystal growth.
A team of Chinese researchers found that façade-integrated photovoltaics can generate substantial electricity while reducing cooling demand, thereby reducing carbon emissions and improving urban climate adaptation. FIPV adoption could lead to meaningful economic and climate gains worldwide.
A new study reveals that the honey bee waggle dance is a dynamic, two-way interaction shaped by its audience, contradicting the traditional view of unidirectional information flow. Researchers manipulated the number of potential observers to test how dancers adjust their behavior based on the availability of appropriately aged bees.
Researchers discovered that N6-methyladenosine (m6A) epigenetic modifications in mosquito-borne flaviviruses enhance viral propagation in vertebrates, increasing transmission from animals to mosquitoes. The study found a host-dependent regulatory mechanism involving the stem-loop I structure and the protein G3BP1.
A team of scientists has identified a novel octameric resistosome formed by an activated wheat CC G10 -NLR immune receptor. The study reveals that the resistosome induces Ca 2+ influx and immune responses through a unique channel architecture, providing new insights into plant immunity.
Climate warming significantly increases plant growth in permafrost regions by altering growing seasons and root penetration, but its impact depends on nitrogen supply. A new study reveals that moss-associated biological nitrogen fixation is a critical factor in sustaining plant growth under warming conditions.
A new study uses fiber-optic sensors to monitor water movement through the soil, revealing that common farming practices can pool water near the surface, reducing its availability to plants. This can lead to crop drought stress and decreased yield.
Researchers break thickness limit for lead-free films, discovering a metastable phase that unlocks latent piezoelectric potential. The films exhibit a piezoelectric coefficient four times higher than conventional forms, paving the way for ultra-miniaturized sensors and devices.
Scientists have developed a novel 2D multiferroic metal, bilayer CrTe2, with intrinsic room-temperature multiferroicity and strong magnetoelectric coupling. The material exhibits reversible out-of-plane polarization and demonstrates 'electrical writing and magnetic reading' capabilities.
Urban parks exhibit enhanced microbial activity and nutrient-cycling capacity, but with smaller genomes and reduced evolutionary potential. This 'function–evolution trade-off' highlights the need for urban green space planning that balances short-term ecological function with long-term microbial diversity and resilience.
Researchers observe rare nuclear isomer in ytterbium-150, measuring its half-life and establishing its decay scheme. The study reveals an isomeric relay mechanism, shifting the configuration of nuclei within the 10+ isomeric chain, extending its persistence into the proton drip line region.
Researchers developed magnetically controlled microrobots made from diatoms to target glioblastoma lesions with photodynamic therapy. The microrobots achieved a significant cytotoxic effect on primary glioblastoma cells and demonstrated good biocompatibility.
Researchers developed a biomimetic platform to enhance CAR T cell therapy against leukemia by creating a molecular bridge that reinforces the interface between CAR T cells and leukemia cells. This platform, called FACE, uses ferritin to bind to CD71 on leukemia cells, improving cell recognition and elimination.
A recent study has precisely dated the end of a geomagnetic field reversal, revealing asynchronous land–ocean responses to ancient ocean anoxia. The findings provide new insights into Early Cretaceous geodynamics and the evolution of marine and terrestrial carbon cycles.
The Tibet ASγ Experiment has measured magnetohydrodynamic turbulence on scales below one parsec within the gamma-ray halo surrounding the Geminga pulsar wind nebula. The study found that particle diffusion is strongly suppressed near Geminga and the turbulent properties follow a Kolmogorov-type scaling law.
The discovery of Eosteus chongqingensis and Megamastax amblyodus provides a major breakthrough in understanding the evolution of bony fishes, revealing primitive characteristics that evolved much earlier than previously thought. These findings confirm South China as the cradle for the origin of jawed vertebrates.
Low-smoke fuels produce a two- to three-fold increase in ultrafine particles, even as total mass of particulate emissions is reduced. UFPs penetrate deep into the respiratory tract and induce severe pulmonary inflammation, promoting higher lung and alveolar deposition.
A research team proposes a generalized trap model to understand the aging behavior of glassy materials, revealing a fundamental mechanism governing their slow evolution. The theory predicts weak ergodicity breaking at a temperature higher than the conventional glass transition temperature.
Researchers developed a new 2D membrane reactor that significantly improves the synthesis of imines, critical precursors for pharmaceuticals and advanced materials. The system achieves high conversion rates and selectivity in under 7 seconds at room temperature.
A new strategy for improving inverted perovskite solar cells has been developed using a crystal-solvate pre-seeding method, enabling precise regulation of the bottom interface and paving the way for high-efficiency large-area photovoltaic modules.
A new mechanism utilizing interfacial phase equilibrium regulates metal ion migration in CZTSSe photovoltaic cells, reducing deep-level defects and improving crystalline quality. The approach achieves a record-high open-circuit voltage of over 600 mV, overcoming long-standing energy losses.
Early land plants began reshaping Earth's surface environments approximately 455 million years ago, boosting organic matter production on land. This increased terrestrial photosynthesis led to elevated organic carbon-to-phosphorus ratios in marine sediments, indicating a significant impact on the Earth system.
Chinese scientists have developed a dual-side electrical refinement strategy for large-area TOPCon solar cells, achieving an open-circuit voltage of 744.6 mV and a fill factor of 85.57%. The breakthrough sets a new record for industrial-scale solar cells, narrowing the gap between mass-production efficiency and theoretical limit.
A recent study found that the Yangtze River fishing ban has halted seven decades of biodiversity decline, triggering an initial recovery in fish resources. Key indicators such as biomass, body condition, and species diversity have shown significant improvement after full enforcement of the ban.
Researchers created a distributed nuclear-spin-based quantum sensor network to experimentally exceed astrophysical constraints on dark matter associated with axion topological defects. The study set the most stringent constraints on axion-nucleon coupling across an axion mass range, opening up new possibilities for probing unexplored p...
A team of Chinese researchers has achieved device-independent quantum key distribution over 100 km, paving the way for practical long-distance quantum networks. This breakthrough enables the creation of scalable quantum repeaters, a critical building block for universal quantum computers.
Climate warming stimulates sphagnum growth, promotes iron protection, and inhibits microbial decomposition in boreal peatlands. This leads to increased soil carbon accumulation, potentially offsetting half of the decline in boreal forest carbon sink under future warming.
Scientists in China have developed a novel silicon-based nanothrombolytic therapy that achieves efficient thrombus clearance and in situ regulation of the coagulation microenvironment while minimizing systemic bleeding risk. The strategy combines enzymatic clot dissolution with intelligent microenvironment reprogramming.
A decade-long study reveals that combined effects of rising atmospheric CO₂ and warming reduce phosphorus availability in rice-upland crop rotation systems. Warming plays a dominant role in redirecting phosphorus into less accessible soil pools.
A team of physicists identified the dominant mechanism responsible for energy release in molybdenum-93m using high-precision experiments. Inelastic nuclear scattering is confirmed to be the primary driver of isomer depletion under experimental conditions, contradicting previous hypotheses about nuclear excitation by electron capture.