Qinghai Normal University

Electrolyte- and Catalyst-Free Electrochemical Synthesis of Unsymmetrical Diorganoyl Selenides

Abstract A facile electrocatalytic radical coupling of Katritzky salts with diselenides for the efficient synthesis of various alkyl aryl unsymmetrical selenides has been developed under mild conditions. This sustainable protocol is driven by renewable electrical energy, features...

Response of cbbL Carbon-Fixing Microorganisms to Flooding Depth During the Growing Season in Qinghai Lake Lakeshore Wetlands

Lake-level rise driven by changing precipitation is increasing inundation in littoral wetlands, but responses of cbbL-harboring carbon-fixing microorganisms remain uncertain. A controlled soil-column experiment included four hydrological regimes: unflooded soil (CK), water level...

Response of alpine runoff to the ‘Warming and Wetting’ climate change trend: a Budyko-based attribution analysis in the Daheba Basin

ABSTRACT Understanding runoff responses in al pine basins is essential for water-resource management under climate change. This study assessed runoff changes and their drivers in the Daheba Basin, northeastern Tibetan Plateau, using hydrometeorological and land-surface data for 1...

Recovering the Fractional Order and an Initial Value Simultaneously in a Time-Fractional Diffusion-Wave Equation

For a one-dimensional time-fractional diffusion-wave equation, we investigate joint recovery of its fractional order and the initial velocity from measurements taken at one interior point. Uniqueness is proved through analytic continuation, Laplace transforms, an integral mean va...

Drought amplifies the impact of vegetation phenology on wildfire in Guizhou Province, China

Vegetation phenology is highly sensitive to climate change and may influence wildfire by regulating fuel accumulation and fuel moisture. However, under increasingly frequent extreme droughts, clear evidence is still lacking regarding how phenological changes affect wildfires acro...

A dual-domain guided emotion-specialized swin transformer for enhancing speech emotion recognition

Existing Transformer-based speech emotion recognition methods primarily focus on capturing intra-correlations of a sequence through multi-head self-attention mechanisms, or on capturing local key emotional information using windowed attention. However, they neglect the aggregatio...

Configurational-Entropy-Engineered Prussian Blue Analogue Cathodes for Low-Temperature Semi-solid-state H2 Batteries

Abstract Low-temperature proton transport kinetics remains a key limitation for rechargeable H2 batteries. Herein, we report a configurational-entropy-engineered K1.36Mn0.6Fe0.1Co0.1Ni0.1Cu0.1[Fe(CN)6]0.61·□0.39·1.2H2O (CEM0.6-PBA) cathode for semi-solid-state H2 batteries. Densi...

Topological Reinforcement of Rhizosphere Microbial Networks Facilitates the Invasive Superiority of Spartina anglica

Rhizosphere microbial interaction patterns underpin the resilience and dominance of invasive plants in fluctuating coastal salt marshes. We compared the rhizosphere microbial communities of the invasive Spartina anglica and the native Spartina maritima across varying distances fr...

The hypoxia–gut microbiota–bile acid axis: mechanistic crosstalk and therapeutic opportunities

Hypoxia is a central feature of a wide range of pathological conditions; however, the metabolic regulatory networks underlying hypoxic adaptation remain incompletely understood. In recent years, accumulating evidence suggests that bile acids, traditionally regarded as metabolic e...

Near telomere-to-telomere genome reveals the phylogenomics and hibernation-related evolution in Tibetan brown bear (Ursus arctos pruinosus)

The Tibetan brown bear ( Ursus arctos pruinosus ) is an apex predator endemic to the Qinghai-Xizang Plateau (QXP) with crucial ecological status, while high-quality genomic resources for studying its adaptation to the plateau environment remain scarce. Here, we generated a near-T...

FCAE-Mixer: frequency-aware convolutional autoencoder with dual-branch mixing for time series anomaly detection

Abstract The core of complex time series anomaly detection lies in the effective extraction of multi-dimensional features. However, existing methods often separate the synergistic mechanism among local temporal, global variable, and frequency domain features. To this end, this pa...

Construction of the $$a_4$$ family

Abstract The COMPASS Collaboration recently reported a new broad $$J^{PC}=4^{++}$$ J PC = 4 + + structure, denoted as $$a_4(2610)$$ a 4 ( 2610 ) , which has sparked our interest in studying the $$a_4$$ a 4 family with $$I^GJ^{PC}=1^{-}4^{++}$$ I G J PC = 1 - 4 + + . In this work,...

Identifying the influencing factors of lake surface greenhouse gas concentrations using sentinel-2 remote sensing and machine learning: A case study of bird Island, Qinghai Lake

Alpine lakes on the Qinghai-Tibet Plateau are important regions for studies of the regional carbon cycle and are highly sensitive to climate change. However, the variation patterns of lake surface greenhouse gases and their environmental regulation mechanisms remain unclear. In t...

Mixed Cropping Improves Soil Fertility via Enhancing Plant Facilitation in Alpine Artificial Grassland

By enhancing plant complementarity and facilitation, mixed cropping may accelerate soil fertility recovery and improve grassland ecosystem resilience. Nevertheless, the impacts of mixed cropping on soil fertility over a single growing season, and the underlying plant–soil interac...

Younger Dryas Glacial Advances on the Tibetan Plateau

The Younger Dryas (YD) terminated the last glaciation and initiated the Holocene, which was accompanied by widespread glacial advances. Traditional scaling models, production rates, and outlier screening approaches for 10Be exposure dating often yield inconsistent formation ages...

Contrasting Growth and Physiological Response Profiles of Three Native Alpine Elymus Forage Grasses Under Combined Cadmium and PEG-6000-Induced Osmotic Stress

The co-occurrence of soil drought and cadmium (Cd) pollution represents an important combined-stress scenario in degraded alpine grasslands, yet comparative responses of native Elymus forage grasses remain poorly resolved. Seedlings of E. sibiricus cv. Chuancao, E. breviaristatus...

Aminosugar-FunctionalizedMicrospheres with SuperiorBoron Selectivity and Reusability: Synthesis, Performance, and ChelationMechanism

Abstract Traditional adsorbents often face challenges such as low adsorption capacity, poor selectivity, difficulties in regeneration, and limited stability, rendering them inadequate for boron-containing wastewater treatment. In this study, glycerol methacrylate (GMA) is graft-c...

Photovoltaic Microhabitats Reorganize Vegetation and Soil Carbon Pools in an Alpine Dryland Grassland

Utility-scale ground-mounted photovoltaic development is expanding across alpine dryland grasslands, creating engineered microhabitats with contrasting shading regimes, surface exposure, and soil hydro-physical conditions. Microhabitat-specific responses of vegetation and soil ca...