Recent studies of Mesozoic mammals in China reveal a diverse range of species, with many exhibiting mammalian characteristics. The findings provide insights into the evolution of the mammalian middle ear and the origin of mammals, with implications for our understanding of vertebrate biology.
A new study suggests that China should conduct national conservation horizon scanning to identify potential environmental problems that have not yet been noticed by society. This could help prevent large-scale environmental disasters, such as the serious haze caused by heavy air pollution in northern China and across the Yangtze River ...
Recent breakthroughs in iron-based superconductors feature the highest transition temperatures next to copper oxides, with a focus on understanding their unconventional superconductivity. The study outlines the interplay between magnetism and superconductivity, electronic properties, and crystal structures of these materials.
A new study reviews fossils from the Weng'an biota, revealing evidence of cellular, tissue, and reproductive differentiation in ancient red algae and animal embryos. The findings support the evolutionary transition into complex multicellularity and shed light on the early evolution of eukaryotic multicellularity.
A new study by Professor Ulf-G Meißner finds that fundamental physics constants are fine-tuned to allow for the emergence of a life-enabling universe. The researcher used high-performance computers to simulate worlds with altered light quark masses and found that variations up to 2-3% do not prevent the formation of carbon and oxygen.
Researchers at HKUST developed a novel nanobowl optical concentrator to enhance light trapping in organic photovoltaic devices. The device achieved a 28% improvement in power conversion efficiency, outperforming control devices without the nanobowl structure.
Recent research on the fractional quantum Hall effect (FQHE) has made significant progress, including the observation of the 5/2 filling state in graphene. This state is an even denominator state that requires new theoretical concepts to understand its many-body physics. FQHE applications in quantum computing are also being explored.
Researchers have found iron-based catalysts for diazo compound transformations, offering a sustainable alternative to precious metals. These iron complexes exhibit unique advantages in specific reactions, including cyclopropanation and enantioselectivity.
Theoretical studies have predicted the existence of exotic few-body correlations and interesting pairing states in spin-orbit coupled ultracold Fermi gases. Spin-orbit coupling modifies single-particle spectra, giving rise to these phenomena.
Researchers develop a novel evolvable Internet architecture framework with design constraints and models analysis to meet future Internet demands. The framework balances the advantages of both clean-slate and dirty-slate approaches, promoting flexibility and stability.
A numerical triaxial apparatus based on discrete element method simulates and reproduces the mechanical property of granular materials in landslide. The modified DEM model reflects the main mechanism of friction and dilatancy, providing detail information of mechanical properties such as friction angle and dilatancy angle.
The study establishes form-invariance of electromagnetic, sound, and elastic wave equations without assuming relations between field variables. New locally accurate elastodynamic equations for inhomogeneous media are derived, leading to the design of perfect elastic wave rotators and cloaks.
Researchers discover that most typical networks are robust to both random and deliberate attacks, contrary to previous thought. They propose a simple method to explore the mathematical space of all interesting networks with a particular node degree distribution.
Scientists successfully predicted the thermal expansion of metastable liquid metals by analyzing atomic structures with just one thousand atoms. This breakthrough reveals a connection between microscopic information and macroscopic material properties.
A team of Chinese scientists has developed a new global wetland suitability map to help protect these vital ecosystems. The map, which matches individual wetland sites with local water table depth, shows that the total area of global wetlands is approximately 3.316×107km2.
Researchers studied interdependent and interconnected networks, finding that a failure in one network can lead to complete fragmentation of the system. The study highlights the importance of considering spatial constraints and potential cascading failures in complex systems.
Hepatitis B virus (HBV) infection is associated with a complex tumor microenvironment in hepatocellular carcinoma (HCC), leading to carcinogenic progression. Targeted therapies targeting the microenvironment offer promise for treating this disease.
Researchers demonstrate that β relaxations are intrinsic to supercooled liquids and glasses, connecting them to outstanding issues in glassy physics and material sciences. The study suggests that metallic glasses could be used to design glassy materials with specific properties, such as ductility.
Researchers divert a Chinese river to mitigate environmental disasters and propose an integrated approach to manage water resources, ecological health, and economic development. This study provides a potential model for sustainable development of other inland river basins.
Researchers from Chongqing University have discovered a new method to compress laser linewidth based on Rayleigh backscattering, achieving ultra-narrow linewidths of hundreds of hertz. This breakthrough enables the development of portable laser devices with precise optical signals, revolutionizing fields like spectroscopy and sensing.
The Chinese power grid is facing significant challenges in modernization, including improving asset utilization rates and integrating distributed generation. According to a recent study, the annual average utilization rates of major 10kV equipment were below 40% in 40 Chinese cities, far below comparable levels in developed countries.
Researchers discover seven out of thirteen new families of periodic orbits are unstable, contradicting previous predictions. The study uses a 'Clean Numerical Simulation' approach to verify the findings and reveals the potential for chaotic dynamic systems.
Researchers develop a new liquid-phase 3D printing technique that allows for the rapid manufacturing of conductive metal objects with a low melting point alloy ink. The process prevents oxidation and offers advantages over conventional methods, including high speed and flexibility in controlling temperature and flow fields.
A new study estimated carbon emissions from cropland expansion in Northeast China between 1680 and 1980, finding forest reclamation accounted for 60% of total emissions. The conversion of non-forest ecosystems also played a significant role in triggering carbon emissions.
Scientists from China and the US report results from the first stage of the PandaX-I experiment, a dark matter search in an underground lab. The data from this experiment place strong constraints on previously reported dark matter-like signals.
The study compares the interactions between silver nanoparticles and two thiols, mercaptohexanol (MH) and cysteine. MH forms a sparingly soluble silver(I) thiolate complex AgSRm on the surface, while cysteine replaces the citrate capping agent to form cysteine capped nanoparticles.
A recent study found that expressive suppression is effective in reducing negative emotion in Chinese culture, even faster than cognitive reappraisal. The study used high temporal-resolution Event-Related Potentials and a rigorous experimental design to compare the effectiveness of both techniques.
Researchers have found that non-coding RNA studies can improve crop resistance to pathogens and pests, reducing the need for chemical pesticides. This new approach uses small RNAs to repress the expression of target genes, promoting healthier plant development and improved nutritional value.
Recent research reveals that breast milk microbiomes are maintained by niche differentiation and dominant species, contradicting the traditional neutral theory. This finding has significant clinical implications for understanding mastitis and other diseases associated with breast milk.
Rice scientists have made crucial contributions to understanding its complex agronomic traits by employing a genetics-based strategy. The study has identified key genes involved in shoot architecture, leaf development, and grain quality, shedding light on the molecular mechanisms underlying these processes.
Researchers have developed a new method using laser-induced breakdown spectroscopy to distinguish between gutter oil and safe, edible oil. The technique uses principal component analysis and artificial neural networks to detect toxic substances like bacteria and heavy metals.
Researchers used same-beam VLBI technology to monitor the Chang'E-3 rover's movement, measuring sensitivity of 50-100mm. The technique precisely tracked the rover's position relative to the lander and Earth.
The era of Big Data presents new opportunities for personalized treatments and services, but also introduces challenges in statistical analysis, bias sampling, and measurement errors. Researchers focus on developing new computational infrastructure and data-storage methods to handle massive datasets.
Researchers have made a breakthrough in evaluating long bone fractures using ultrasound, providing a new method for monitoring healing. The study found that the amplitude of ultrasonic guided waves can quantify fracture degree and depth, offering a non-invasive diagnostic tool.
Graphene-based planar micro-supercapacitors provide a promising solution for on-chip energy storage with high power density and fast charging capabilities. The devices can deliver a superior cycling lifetime of millions of cycles, making them suitable for applications that require high power over a short timeframe.
Researchers used 3D models of the woodpecker to understand its anti-shock biomechanical structure, which stores most impact energy in the body and reduces it in the head. This study could provide guidance for designing anti-shock devices and structures for humans.
Researchers found that frontal EEG lateralization is a key indicator of emotional flexibility, with left-sided lateralization associated with flexible responses and right-sided lateralization linked to inflexible ones. The study suggests that training can improve left-sided lateralization and enhance emotional flexibility.
Researchers identified proteinaceous binding media used in polychrome layers of Qin Shihuang's terracotta army. Natural pigments and binding media were found to be composed of cinnabar, apatite, azurite, and malachite.
Direct C–H transformations aim to perform synthetic chemistry in a greener and more atom-economical way. Several generations of chemists collectively made significant progress in inert aliphatic C–H bond functionalization.
Researchers have developed a new ultrafast imaging technique using multi-wavelength lasers to overcome the limitations of traditional imaging systems. This breakthrough enables real-time optical imaging with high resolution and fast frame rates.
Researchers at China's PandaX facility aim to detect direct evidence of dark matter interactions with xenon nuclei and observe double-beta decay. The new detector is designed to distinguish between nuclear recoils and electron recoils, with promising results from previous experiments like XENON100.
Researchers review the role of PIWI proteins and piRNAs in regulating gene expression during germline development and beyond. Recent studies have identified novel mechanisms of epigenetic programming, DNA rearrangements, mRNA turnover, and translational control in both germline and somatic tissues.
Chinese researchers discovered that people with major depressive disorder have impaired self-face recognition, including increased self-focus and sensitivity to the self-face. This impairment cannot be attributed to medication status and suggests that depression is associated with abnormal self-bias.
Researchers have observed an ordered water monolayer on various solid surfaces at room temperature, contradicting the classical understanding of water's behavior. This phenomenon exhibits novel properties and affects surface characteristics, such as electrochemical property, wetting behavior, and friction.
Researchers have found ferromagnetic order with Tc up to 230 K in a new DMS system, overcoming the obstacle of lower Tc compared to classical systems. The system exhibits spontaneous magnetization and clear signatures of ferromagnetism, including negative magnetoresistance.
The PandaX experiment at the China Jinping underground laboratory is using a liquid xenon dual-phase technology to detect dark matter and neutrinoless double beta decay. The facility has been optimized for low background radiation, with a shielded environment protecting against cosmic muons.
Researchers from Minzu University of China conducted geometric morphometric analysis on the sides faces of Tu and Zang ethnic groups, revealing distinct variations and common features. The study aimed to contribute to research on Chinese facial profile characteristics and variations.
A new type of infrared photodetector has been proposed, featuring a nanoporous ZnO/n-Si structure that exhibits a double peak in transient photovoltage decay under near-infrared pulsed light irradiation. The device's photoresponse is highly sensitive to slight changes in laser pulse energy.
Researchers propose an architecture-centric method, ABC, to unify software development phases and control high-level structural complexity. The method realizes consistent, flexible, and systematic modeling and control of software complexity across the whole lifecycle.
A team of CAS researchers developed biomimetic nanochannels to harness the power of confined water in biological systems. Inspired by nature's intelligent design, they created a strategy for designing smart nanochannels with applications in energy conversion systems.