Chinese Academy of Sciences

Changes in the tropical rainfall seasonal cycle dominated by mesoscale convective systems

Global warming is reorganizing atmospheric circulation and hydroclimate, and tropical rainfall is a key manifestation of this response. Yet how these large-scale changes are translated into the tropical rainfall seasonal cycle remains uncertain because organized convection, which...

GRB 260310A / SN 2026fgk: A Multi-Wavelength Study of a Nearby Underluminous Long GRB and SN with a Complex Afterglow

Abstract We present a comprehensive multi-wavelength study of GRB 260310A / SN 2026fgk, a nearby (z = 0.153), long-duration gamma-ray burst (GRB) with an exceptionally underluminous prompt γ-ray emission and a Comptonized spectrum. The burst occurred at the edge of a blue host ga...

A cross-sectional study on identification and prevalence of hard ticks parasitizing large and small domestic animals

Ticks are blood-sucking ectoparasites transmitting pathogens that cause anemia, skin damage, weight loss, reduced meat and milk production, morbidity, and mortality in livestock. This study identified tick species and their prevalence on buffaloes, sheep, cows, and goats in Multa...

Nano‑Ni-based multi-channel recyclable thermal interface material with dual-mode interface adaptability

The rapid miniaturization and integration of electronic devices demand highly efficient thermal management while concurrently exacerbating the global electronic waste (e-waste) crisis. Although thermal interface materials (TIMs) are important for heat dissipation, their end-of-li...

Sodium Lidar observed multiple sodium layer structures and their dynamical coupling mechanism

Abstract. On the night of 13 June 2013, the University of Science and Technology of China (USTC) sodium lidar observed multiple sporadic sodium layers (SSLs) and enhanced sodium patterns (ESPs) over Hefei, China (31.8°N, 117.3°E). These structures appeared at different times, col...

Synergistic Cu nanowires/COF hybrid catalyst for high-efficiency CO2 electroreduction to C2+ products

Abstract The electrocatalytic CO 2 reduction reaction (eCO 2 RR) to high-value-added products is a highly promising strategy for alleviating the energy crisis and reducing carbon emissions. However, traditional Cu-based catalysts exhibit weak adsorption of CO 2 and low *CO interm...

Pre-Paleocene Kohistan–Karakoram Amalgamation: Evidence from the Detrital Zircon Provenance of the Baraul Banda Formation, Pakistan

The Baraul Banda Formation preserves an important Paleocene–Eocene sedimentary record within the western Kohistan–Ladakh Arc (KLA) and provides new constraints on sediment provenance and tectonic evolution during the final stages of Neo-Tethyan closure. This study integrates stra...

Chromosome-level genome assembly of landrace ‘Huangzhou’ provides insights into high cellulose accumulation in radish

<title>Abstract</title> Radish ( <italic>Raphanus sativus</italic> L.) is an important root vegetable crop with extensive morphological and nutritional diversity. The landrace radish, ‘Huangzhou’ (HZ) radish, origins in Huangzhou area, Hubei province of China, and characterized b...

Tracking the baryon number with nuclear collisions

Baryon quantum number is found to be conserved since baryogenesis in the early Universe. Conventionally, each fractionally charged valence quark is understood to carry one-third of a baryon number. An alternative hypothesis posits that baryon number is instead carried by a baryon...

A Design-Technology Co-Optimization Framework Based on Process-Parameter Sensitivity Analysis

This paper proposes a design-technology co-optimization (DTCO) framework applicable to advanced technology nodes, which accelerates the process optimization exploration for such nodes. Developing automatic parameter extraction algorithms tailored for the BSIM-CMG model, along wit...

Synthetic β-amino acid polymer promoting keratocyte adhesion and corneal regeneration

Corneal damage ranks among the leading causes of visual impairment globally. Given the prevalence of corneal diseases and challenges of donor cornea shortages and immune rejection, there is an urgent need to develop alternative materials for corneal repair. Although decellular co...

Modulating the Spin State of Co 3+ to Promote Ampere‐Level Electrosynthesis of Ammonia

ABSTRACT Ammonia electrosynthesis via nitrate reduction offers a sustainable alternative to Haber–Bosch process, and this reaction involves an initial deoxygenation step from NO 3 − to *NO 2 , followed by successive hydrogenation steps to NH 3 . Previous studies have mainly focus...

Global proliferation of opportunistic pleuromeian lycopsids following the disappearance of the end-Triassic forests

Abstract Environmental crises and mass extinction events on land are typically followed by ecological upheaval, during which opportunistic plants rapidly colonize devastated landscapes, forming transient ‘pioneer’ communities that precede the establishment of complex forest ecosy...

Modulation of leaf economics spectrum, mycorrhizal type, and phylogeny on leaf nutrient resorption in a temperate urban forest

Abstract Background and Aims Nutrient resorption is a key nutrient conservation strategy employed by plants. However, the leaf economics spectrum (LES), which reflects a fundamental trade-off between resource acquisition and conservation in plants, has not been properly linked to...

Increasing Climate Constraint on Vegetation Productivity Under Rising CO 2 in Northeast Asia

Abstract Elevated atmospheric CO 2 enhances vegetation productivity through direct physiological and indirect climate‐mediated pathways. However, how the balance between these mechanisms evolves under continued CO 2 rise remains unclear. Here, we use CMIP6 Earth system models to...

Geometry-Informed Adaptive Time-Series Fusion of ADS-B Sensor Data for Short-Term Aircraft Trajectory Prediction

Automatic Dependent Surveillance-Broadcast (ADS-B) systems provide continuous aircraft position reports for aviation surveillance and short-term trajectory prediction. However, many data-driven predictors directly model the longitude, latitude, and altitude contained in ADS-B mes...

A programmable DNA origami nanosyringe for directed membrane translocation

Abstract Bacterial contractile injection systems provide a model for membrane penetration and targeted delivery of molecular cargo through mechanical actuation. Replicating these features in synthetic nanoscale systems remains challenging, particularly with respect to coupling st...

Automated Extraction of Long-Term Cyanobacteria Blooming Series from Landsat Imagery Using Deep Learning

Cyanobacterial harmful algal blooms (CyanoHABs) pose serious threats to inland water ecology and environmental security. Despite advances, accurately capturing their long-term dynamics for effective governance remains challenging due to limited datasets and segmentation model acc...

Surface micro-structuring of TC6 alloy by diamond grit tool

In response to the escalating demand for functional surfaces in marine applications and aerospace, this study investigates the precision fabrication of microstructured surfaces on TC6 using structured diamond grit tools. A novel kinematic model is developed to reveal the formatio...

High-Precision UT1 Prediction with Different Angular Momentum Combination Schemes

Universal Time (UT1) is a core component of the Earth orientation parameters (EOP). High-precision UT1 predictions are essential for satellite navigation, deep-space exploration, and the maintenance of national standard time. Although effective angular momentum (EAM) information...