Scientists successfully couple polyenes into polyacetylene on a Cu(110) surface, revealing three distinct types of linkages. By modulating surface coverage, they can suppress unwanted bond formations, paving the way for controlled uniform products in on-surface chemistry.
Researchers discovered an unexpected and ultrafast synthesis of collagen-like synthetic poly-L-proline using aqueous solutions, overcoming issues with low solubility in organic solvents. The new method resulted in highly controlled polymerization, high end group fidelity, and narrow dispersity.
Researchers propose a new research paradigm for material studies based on the concept of functional motifs, which are critical microstructure units governing material functions. This approach enables the rational design of new materials with desired properties by understanding the quantitative relationships between structure and property.
The paper discusses 2D MIMO-OTA testing algorithms for UE and 3D MIMO-OTA testing algorithms for base stations in the MPAC test setup, comparing related algorithms. Key requirements for designing OTA testing systems are also summarized.
The Eastern North China Craton's destruction led to CO2 outgassing from the deep mantle. High Ca/Al and low Ti/Eu Mg isotopic compositions indicate recycled surface carbonates stored in the lithospheric mantle.
The study aims to investigate China's spaceborne Aerosol and Cloud High Spectral Resolution Lidar (ACHSRL) for its potential in retrieving aerosol and cloud data. The research reveals that the uncertainty of aerosol depolarization ratio and Poisson noise are significant error sources, but proposes correction schemes to improve accuracy.
Researchers found that ground-based VLF transmitter waves can significantly contribute to electron losses in the near-Earth space, leading to the bifurcation of the inner energetic electron belt. This phenomenon can be controlled by human VLF wave generation, which may help mitigate natural space radiation environments.
Researchers develop novel multiscale synthesis method for organic semiconductor materials, enabling color-tunable and high-performance white-light sources. The approach leverages weak intermolecular non-covalent interactions to form cocrystals, solid solutions, and core-shell microwires.
This study reveals that dihydroartemisinin (DHA) regulates splenic immune cell heterogeneity through the SOD3-JNK-AP-1 axis, which may explain its therapeutic effects in autoimmune diseases like systemic lupus erythematosus. DHA downregulates immunosuppressive molecules and upregulates effector molecules in immune cells.
Monolithic dynamic covalent polymer aerogels (DCPAs) exhibit excellent mechanical properties and can be degraded into soluble monomers. The new DCPAs can be generated by adjusting the molar ratio between amino groups and aldehyde groups, enabling closed-loop recyclability.
Researchers have discovered a significant room temperature third-order nonlinear Hall effect in type-II Weyl semimetal TaIrTe4. The effect is stable for several months and has higher contributions from Berry-connection polarizability.
Researchers developed an efficient editing system to generate transgene-free gene-edited cloned pigs, eliminating plasmid DNA integration risks and reducing culture time. The RE-DSRNP method successfully edited the WIP1 gene in Meishan pig, resulting in 97% editing rate and no off-target events.
The study analyzes global land-water-gas carbon transport and budget changes, focusing on inland water carbon budget and cycle in land-sea-gas budget. Climate change drives riverine-based carbon transport processes, while anthropogenic activities affect carbon sources, cycling, and budgets.
Researchers demonstrate the experimental realization of non-Abelian permutations in a three-state non-Hermitian system, illustrating complex eigenvalue Riemannian surfaces and exceptional points. This study provides theoretical and experimental evidence for the evolution of multiple states in non-Hermitian systems.
Scientists analyzed urine proteomes from COVID-19 patients and identified CLYBL, a citramalyl-CoA lyase that consumes itaconate in the TCA cycle. Increased CLYBL levels led to decreased itaconate levels, suggesting its potential as an immune modulating metabolite for COVID-19 treatment.
Researchers have developed nanocarriers constructed by nucleic acids with addressable and sequence specificity, showing potential in targeted delivery systems. The study explores the application of these nanocarriers in biosensing, cargo loading, and transport, as well as diagnosis and logic gates.
Researchers develop a new type of flexible cathode material that combines hierarchical porous structure with nitrogen doping, allowing for efficient iodine accommodation and stable electrochemical environment. The material exhibits impressive long-time cycling durability and high reversible capacity in zinc-iodine batteries.
Researchers introduced a proton-transfer mediator anion to Ni-Fe layered hydroxides, significantly enhancing oxygen evolution reaction performance. The resulting catalyst showed excellent electrocatalytic activity with ultralow Tafel slope and high proton transfer rate, accelerating the reaction.
Researchers propose a new patterning strategy that expands lithography techniques for fabricating multiscale functional structures. This approach uses mechanical stripping to selectively remove excess resist film, offering advantages over traditional electron beam lithography.
Researchers have synthesized a new high-entropy alloy with 21 uniformly composed elements, achieving improved photothermal conversion performance. The alloy's unique structure enhances solar steam generation efficiency, reaching 99% and 2.42 kg m^-2 h^-1 under 1 sun irradiation.
Researchers created a fast-healing elastomer that can self-repair scratches under NIR light, demonstrating potential for high-performance applications. The material's bond-level healing process was tracked using Raman spectroscopy.
Researchers designed a novel S@Ti3C2TX sandwich structure film as a high-capacity cathode for Al-S batteries, showing excellent cycling performance and reduced polysulfide shuttle effect. The film's unique structure, with a protective layer on the surface of the composite, blocks polysulfides and improves overall battery efficiency.
Researchers develop an eco-friendly method to synthesize B-doped carbon, which exhibits high efficiency in O2 reduction to H2O2. The optimal material shows a selectivity of 98% and high production rate, making it a promising low-cost electrocatalyst.
Scientists have developed a new synthesis method for phase-controlled Pd-Te nanoparticles that outperforms traditional methods. The fast, solvent-free approach uses microwaving to create high-activity catalysts for glycerol and ethylene glycol oxidation reactions.
Silage maize yield and quality properties were studied across China, revealing the impact of management practices and climatic factors on yield and nutritive value. Optimal planting density, fertilization, and growth duration were identified as key controlling factors.
Scientists Wenqian Yao and He Yang successfully fabricated continuous, uniform, and ultrathin organic films using a copper surface-mediated reaction. The growth rate and morphology of the thin films were found to be dependent on the underlying Cu substrate facet, enabling the production of high-quality two-dimensional materials.
Researchers developed a scalable strategy to fabricate multi-shelled hollow N-doped carbon nanosheet arrays with confined Co/CoP heterostructures, exhibiting enhanced HER performances and pH universality. The optimal triple-shelled structure shows low overpotentials in acidic, alkaline, and neutral media.
This study analyzes the long-term trend of summer water vapor and its mechanism over the Tibetan Plateau, finding notable increasing trends in water vapor content and net water vapor budget. The results project significant future changes in water vapor and precipitation over the plateau under global warming.
Researchers have developed a peptide hydrogel, SupraGel, that efficiently produces cell spheroids with maintained stemness. The hydrogel's biocompatibility and scalability make it an ideal platform for studying cellular complexities and screening drugs.
This study demonstrates a wafer-scale Si subulate array substrate for RRAM devices, improving cycle-to-cycle and device-to-device uniformity. The smallest curvature radius achieved is controlled by adjusting etching time, resulting in enhanced resistive window, retention characteristics, and switching voltage uniformity.
This study reveals that North Atlantic Meridional overturning circulation dominates the frequency of extreme temperature events over China during winter. The research found a significant correlation between AMOC, Siberia High, East Asian Trough, and westerly belt with the sum of extreme cold and warm days in China.
Lattice and code-based cryptography offer fresh ideas by reintegration of coding theory and cryptography for post-quantum security. Current public-key schemes vulnerable to quantum computing attacks, promising approaches include McEliece cryptosystem and lattice-based cryptography.
A new, high-quality natural streamflow dataset for China has been developed, achieving high skill metric values and reducing biases in hydrological simulations. The dataset covers all 330 catchments from 1961 to 2018 and has important implications for understanding hydrological processes and river management activities.
A 14-year prospective follow-up study confirms Burch colposuspension as an effective option for women with stress urinary incontinence, with a high continence rate and significant improvement in quality of life. Long-term complications were reported in about 28% of patients.
Researchers from eight international groups reviewed progress and discussed issues in estimating terrestrial evapotranspiration. They identified main bottlenecks in contemporary theory and proposed potential solutions. The study highlights the need for new thinking due to large uncertainty in current estimation methods.
A team of researchers led by Dr. Zhiyong Xiao discovered centimeter-sized translucent glass globules on the Moon's surface during the Chang'E-4 mission. The findings suggest that impact glasses sourced from iron-poor materials, such as pure anorthosites, could be a promising resource for in-situ glass production.
Three new rare bacterial phyla, Candidatus Qinglongiota, Heilongiota, and Canglongiota, were discovered by Shenzhen University researchers. They have diverse metabolic capabilities, including anaerobic fermentation and respiration processes.
A new daily drought index, DEDI, is developed to characterize spatiotemporal evolution of regional droughts. It outperforms existing indices in depicting onset, cessation, and intensity peaks of drought events.
This study reveals melatonin's potential as an antibacterial agent against Gram-negative pathogens, particularly through the inhibition of citrate synthase. By damaging bacterial membranes and inducing leakage of intracellular contents, melatonin demonstrates its effectiveness in reducing bacterial loads.
The study of Mercury's dynamic magnetosphere reveals large variations in the solar wind at perihelion and aphelion. Magnetic reconnection events, including flux transfer event 'showers', significantly contribute to the Dungey cycle and magnetosphere-surface-exosphere coupling.
Scientists have observed significant oscillations in confined water within one-dimensional nanochannels, affecting axial density and repelling ions at distant entrances. These findings may contribute to understanding biological channels and improving desalination technologies.
A Peking University research team has developed a new treatment for amblyopia in children that uses asynchronized dichoptic binocular visual stimulation to improve visual acuity. The therapy involves watching preferred cartoon movies, which provides personized therapeutic treatment with faster and shorter treatment courses.
The study finds that pentatellurides exhibit nonlinear transport behavior when subjected to magnetic fields, leading to the emergence of many-body effects in Dirac electrons. This phenomenon is characterized by a 3D density wave state that can be suppressed or activated by electric field thresholds.
The study found that elevated CO2 concentration increases CH4 emissions by 23%, but reduces N2O emissions by 22%. However, with longer duration of CO2, emissions decrease by 27% and 53%. Appropriate agricultural management practices, such as straw incorporation and water regimes, also affect these emissions.
Researchers developed a host-guest MOF platform for rational construction of D-A materials and achieved TADF with controlled PLQY and PL intensity. Spatial alignment of donor and acceptor molecules enhances radiative transition processes.
Researchers found hollow melanosomes in a 130-million-year-old fossil, suggesting the earliest appearance of brilliant iridescent color in bird feathers. The discovery was made on an Early Cretaceous basal bird from northern China and provides evidence for the evolution of complex feather colors.
Researchers found that mesoscale SST anomalies near Kuroshio Extension can cause positive geopotential height anomalies with strengthened poleward shift of westerly anomaly. Large-scale SST anomalyl warming causes weak baroclinic structure and clockwise secondary circulation, distinct from mesoscale influence.
Researchers found that four species of Gentian flowers respond to mechanical stimulation with rapid corolla contraction and full closure. This phenomenon may serve as an induced defense or a pollination stimulator, allowing the flowers to control interactions with potential pollinators like bumblebees.
Researchers created a digital chromosome in yeast that stored image information and exhibited genetic and epigenetic features. The artificial chromosome formed chromatin structures with histones and displayed active transcription, overcoming data storage limitations.
A novel data-driven method forecasts lithium metal battery capacity degradation trajectory with superior accuracy. The approach extracts physically meaningful features from discharge curves, providing insights into battery degradation mechanisms.