The BESIII experiment has made significant discoveries in the study of charmonium and charmoniumlike states, including the observation of conventional and exotic hadrons. The researchers have also uncovered evidence for the commonality among X(3872), Y(4260), and Zc(3900) states.
A recent study has identified the superior antitumor efficacy of LTr1 over commercialized compound DIM, revealing new insights into the metabolism of indole-3-carbinol. The research team discovered that LTr1 is formed through the Michael addition of 3-methyleneindolium to DIM in the upper gastrointestinal tract.
Researchers have discovered a rare quaternary compound FeO2H2He that can be stabilized at high pressures. The study reveals a novel superionic state of the compound, hosting liquid-like hydrogen in its sublattice, which promotes close coalescence of hydrogen and helium.
Researchers have developed a method to produce genome-edited sperm from a different species by transplanting spermatogonial stem cells, opening up new avenues for accelerating breeding processes in commercial fish and livestock.
Scientists summarize current state of land carbon data assimilation and outline mathematical principles for optimal fusion with models and observations. Emerging opportunities include fusing multisource observations into a coherent carbon data assimilation system.
Human activities have reduced the occurrence of persistent heavy Meiyu rainfall events in China, but greenhouse gas emissions would increase their probability. Anthropogenic aerosols, however, reduce atmospheric moisture and weaken the monsoon circulation, offsetting this effect.
A new study finds that vapor pressure deficit has a significant impact on the global terrestrial carbon cycle. Researchers led by Dr. Bin He and Dr. Wenping Yuan confirmed this finding using satellite remote sensing and modeling approaches.
Researchers developed a facile approach to preparing functionalized MOF catalysts with covalently anchored metal-N-heterocyclic carbenes. The catalysts exhibit high activity in Suzuki coupling reactions and hydrogen transfer reactions, and can be separated and recycled multiple times.
Researchers have developed a novel multi-enzyme platform that enables sequence-unconstrained traceless protein synthesis and modification, expanding the possibilities for life science research and pharmaceutical innovation. The PALME platform utilizes diverse enzymes to offer flexible ligation sites and peptide substrates.
A severe sandstorm in North China was triggered by a combination of factors, including persistently lower surface air temperatures and reduced winter precipitation. The resulting dry and loose land surface created a significant dust source that led to the storm.
Researchers have developed a single-layer composite hydrogel with improved mechanical and electrical properties, featuring high stretchability, self-healing capabilities, and ultrasensitive mechanical sensing. The SHARK material can be stretched up to 77 times its original length and completely self-heal in less than a minute.
The Toarcian Ocean Anoxic Event was found to have occurred in the eastern Tethys, displaying similar carbon-isotope excursion patterns to other regions. This suggests a global expression of the event, with climatic change controlling organic matter accumulation and sediment supply.
The study introduces a novel approach to attenuate the limitation of the energy gap law, achieving high-efficiency NIR emissions through intermolecular charge-transfer aggregates. The developed material exhibits widely-tunable emissions and high photoluminescence quantum yields.
Researchers have been exploring tribocatalysis as an alternative clean energy technology. The process converts mechanical energy into electrical energy through the triboelectric effect, with potential applications in material synthesis and energy conversion. Further research is needed to fully develop this promising field.
This work proposes a hybrid quantum-classical convolutional neural network that leverages the power of quantum computing to enhance machine learning. The quantum feature map allows for a much larger feature space exploration, potentially leading to higher learning accuracy.
Researchers found that short-form OPA1 serves as a molecular chaperone to protect substrate proteins from thermal and chemical aggregation in the mitochondrial intermembrane space. This new function of S-OPA1 may contribute to sustaining mitochondrial homeostasis.
A novel reassortant H10N3 avian influenza virus emerged in Eastern China, exhibiting high pathogenicity and respiratory droplet transmissibility to mammals. The virus was isolated from poultry and showed affinity for both avian-type and human-type receptors, posing a significant threat to public health.
Scientists successfully controlled photonic orbital angular momentum (OAM) in three-dimensional space and time domain, opening up new possibilities for studying light-matter interactions and developing innovative photonic devices.
Researchers identify a twist-angle dependent exciton in WS2/WSe2 heterobilayers, characterized by an intralayer exciton with transition dipole moment parallel to the atomic plane. The exciton's orientation and energy are found to be independent of the twist angle.
Scientists at Wuhan University have developed a novel method to synthesize 2D rare earth oxides (REOs) with specific facets. The technique uses a facet controlling assistor to control the growth mode and direction of crystals, leading to anisotropic growth of non-layered REOs materials.
Researchers developed a new method for activating carbon-nitrogen bonds using uranyl photoredox catalysis. This process enables the efficient synthesis of phenols from anilines, with gram-scale amplification and high efficiency demonstrated.
Researchers discovered a new candidate for the sister group of eukaryotes, named Njordarchaeota. The analysis suggests that this group is closely related to eukaryotes and may have played a key role in their origin.
Researchers identify a hydrogen utilization pathway for the electrocatalytic hydrogenation of phenol, improving its efficiency with PtRh/MCN bimetallic catalysts. The study shows that specific adsorption of phenol enhances intrinsic activity for producing adsorbed hydrogen from water electrolysis.
Scientists developed a cascade-responsive nanobomb that generates multiple severe ROS storms at the tumor site, effectively inhibiting tumor growth and preventing metastasis. The device uses a domino effect to activate systemic immune responses while minimizing external energy stimulation.
Researchers use synchrotron techniques to study battery cathode materials, revealing their structural and chemical evolution under real-world conditions. The study highlights the importance of realistic operating conditions and interdisciplinary collaboration in improving energy density and reducing production costs.
A new semi-heterogeneous photo-Cu-dual-catalytic system enables mild C–H arylation and multi-types cross-coupling reactions with good yields and site selectivity. This method produces high-value compounds, such as alkaloid natural products, in a single step.
The study reveals Jiuduansha Island's rapid growth due to reduced fluvial sediment discharge and the Deep-Water Channel Project. The island's elevation, location, and area underwent significant changes, with accelerated growth rates observed.
A new polymer semiconductor is developed using nonchlorinated solvents, resulting in improved solubility and alignment of the polymer film. This leads to high-performance ambipolar transistors with record mobilities, outperforming traditional methods.
Researchers define the Silurian-Devonian boundary in East Yunnan using geochemical indicators, resolving debates on the interval. The study provides a feasible method to calibrate minimum and maximum ages for coelacanth-rhipidistian and lungfish-tetrapod splits.
Researchers have proved the existence of universal adversarial examples that can deceive multiple quantum classifiers. The study also reveals the universality aspect of adversarial attacks for quantum machine learning systems, providing valuable insights for future applications.
Researchers developed a global impervious surface area dataset using over 3 million Landsat satellite images, revealing widespread urban sprawl and accelerated urbanization in Africa and Asia. The study provided a new global mapping method and longest time span for ISA data.
Researchers highlight the potential of disordered carbons as anode materials for sodium-ion batteries, but also identify remaining challenges. The authors propose five key research directions to advance the field and improve battery performance.
Ruddlesden-Popper Sn perovskites with ionic liquid bulky spacers show improved stability and efficiency. The new spacer enhances inter-component interaction, leading to high-quality crystals with narrow phase distribution.
Researchers discovered five handprints and five footprints in travertine from a hot spring on the Tibetan Plateau, dated to between ~169,000 and 226,000 years ago. The prints appear to have been deliberately placed by two children, one aged 7 and the other 12, making them the oldest known example of parietal art.
Researchers found that surface fluxes of momentum, heat, water vapor, and carbon dioxide over complex terrains are not representative at near-surface heights. Multilevel observations on towers can help derive accurate surface flux values.
Researchers deployed 100 short-period seismometers to measure ice flow velocity in East Antarctica, tracking movement of up to 1m over a one-month period. The study found that seismic stations on ice sheets showed shifting longitude distributions, while those on bedrock maintained consistent coordinates.
Researchers have constructed new sea surface salinity indexes to identify two types of El Niño events (EP and CP) independently. The indexes are based on different key areas with varying ocean salinity patterns.
The GPGD database contains records for 903 herb species, including DNA barcodes, organelle genomes, and whole genomes. It provides essential resources for species identification, biosynthetic pathway decomposition, and molecular-assisted breeding analysis.
Scientists at Huazhong University of Sci. & Tech. present a soft and disordered hyperuniform elastic metamaterial (DHEM) that achieves remarkably high efficiency vibration concentration in broad frequency band, reaching up to ~4000 enhancement factor. The DHEM design covers a range of frequencies from ~100 Hz to ~10 kHz.
A recent study analyzed the structure of heatwaves in China from 1961 to 2017, finding that most summertime heatwaves were compound heatwaves with both hot days and hot nights. The study also revealed the influence of urbanization on heatwave structures and provided instructions for researchers to customize heatwave indices.
The Xishancun landslide in China has been analyzed using high-frequency receiver functions from local earthquakes, revealing higher Poisson's ratios and low-velocity layers. These findings suggest the potential hazards of water-rich materials and delineate geotechnical structures for stability analysis and hazard mitigation.
Researchers analyzed zircon grains from ancient rocks in South Africa to find evidence of supracrustal material recycling in the Archean period. They discovered that this process occurred at depths greater than 40 km, with zircon oxygen isotope values indicating interaction with low-temperature water and surface processes.
Researchers investigated the effects of microgravity on the brain's extracellular space and found that fluid transfer leads to adaptive changes in brain parenchyma, CSF, and blood vessels. The study revealed accelerated ISF drainage at day 3, slowed drainage at day 7, and irreversible changes after reloading.
Recent research advances in wet-chemical synthesis of two-dimensional metal nanomaterials have improved the efficiency and stability of electrocatalysts. The authors reviewed various synthetic methods and explored their applications in different electrochemical reactions.
Researchers propose a new coding strategy to achieve accurate and ultra-broadband control of harmonic waves based on time-domain digital coding metasurface. A 256QAM mmWave wireless communication system was successfully established, offering system simplicity, cost reduction, and energy efficiency.
A study using nationwide mobility data in China examined extreme fluctuations in population movements during the Lunar New Year travel season and COVID-19 lockdowns. The results showed that high-tier prefectures retained stable clusters, while low-tier prefectures had larger population flows to these areas.
Scientists used LP-TA spectroscopy to study molecular orientation at heterojunctions of all-small-molecule organic solar cells. The angle between donor and acceptor molecules was estimated, revealing parallel and vertical orientations in different blends. This technique provides complementary information for X-ray scattering measurements.
Researchers developed cross-linked hole transport layers to improve perovskite tandem solar cell efficiency by reducing non-radiative recombination and increasing charge extraction rates. This approach enables higher power conversion efficiencies, surpassing the Shockley-Queisser limit of single-junction solar cells.
Scientists have created a high-spin divacancy color center in silicon carbide with exceptional optical and spin properties. This achievement enables the development of room-temperature solid-state quantum storage and scalable quantum networks based on SiC spin color centers.
The LSXI will use a lunar platform to continuously observe the global images of the Earth's magnetosphere, providing unprecedented observational coverage and innovations in magnetospheric physics research. The instrument combines space-based and ground-based detection results to predict and mitigate space weather disasters.