Peking University

Associations Between Short Video Exposure, Empathy and Attitudes Toward End‐Of‐Life Care Among Nursing Students: A Cross‐Sectional Study

ABSTRACT Aim This cross‐sectional study examined the associations between short video exposure, nursing students' empathy, and attitudes toward end‐of‐life (EOL) care, and tested whether perceived impact is statistically consistent with an indirect pathway in these relationships....

A metabolite-pair controlled quiescence switch via ATP-dependent phase separation

Abstract Amino acid oxidation during carbon starvation inevitably generates NH₄⁺ and HCO₃⁻ as byproducts. Here we show that this metabolite pair acts synergistically to deplete cellular ATP, a task neither accomplishes alone. Rather than nutrient starvation itself, it is this spe...

Edge-resolved shifts and abelian rigidity in cores of cubelike graphs

We study cores of cubelike graphs through edge-resolved shifts. We prove three linked structural results. First, every prescribed edge of a core of a cubelike graph is reversed by a shift that maps every vertex to a neighbour. Second, for a connected normal Cayley graph on a fini...

Extracellular matrix remodeling upregulates hippocampal neurogenic niche stiffness and impairs neurogenesis in Alzheimer's disease

Abstract INTRODUCTION Preserving adult hippocampal neurogenesis alleviates cognitive deficits in Alzheimer's disease (AD), yet how biophysical alterations in such as stiffness in the neurogenic niche regulate neurogenesis remains unclear. METHODS Stiffness in the hippocampal dent...

A Machine Learning Framework for Retrieving Atmospheric Composition and the Associated Averaging Kernels From a Geostationary Hyperspectral Infrared Sounder

Abstract Geostationary hyperspectral infrared sounders provide hourly observations of the atmospheric composition. However, the conventional optimal estimation method (OEM)‐based retrieval algorithm requires computationally expensive radiative transfer calculations and inverse mo...

Patellar fixation in MPFL reconstruction: a network meta-analysis comparing bone tunnel and suture anchor techniques

Although medial patellofemoral ligament (MPFL) reconstruction has become the cornerstone procedure for recurrent patellar instability (RPI), the optimal patellar-side fixation technique remains debated. Direct head-to-head comparisons are scarce, and traditional pairwise meta-ana...

Silica nanoparticles drive disease-suppressive microbiome assembly via inosine-associated metabolic reprogramming and biofilm promotion

Soil metabolites serve as critical cues that orchestrate the assembly of microbial communities. However, the precise mechanisms by which specific chemical signals mediate plant–microbiome interactions to enhance disease resistance remain elusive. In particular, how engineered nan...

Classifications of Substorms With MLT Patterns of SMU‐SML Indices Based on Convection Properties

Abstract During substorms, magnetospheric convection and magnetotail current sheet disturbances are two critical processes, both driving ionospheric electrojets. Dusk‐side SMU and dawn‐side SML (SuperMAG Electrojet indices) enhancements reflect two‐cell convection. Using this rel...

Global rice methane emissions tripled over six decades amid declining emission intensity

Abstract Rice paddies are among the largest anthropogenic sources of methane (CH4), yet substantial uncertainties persist in the long-term magnitude and spatiotemporal dynamics of the emissions. Here we show a spatially explicit global estimate of rice CH4 emissions from 1961 to...

Non-linear associations of plasma 25-hydroxyvitamin D with serum homocysteine and hyperhomocysteinemia in Chinese adults: a cross-sectional study

Abstract Background Plasma 25-hydroxyvitamin D [25(OH)D] deficiency and elevated homocysteine (Hcy) levels are both well-established risk factors for cardiovascular disease (CVD). However, the relationship between 25(OH)D and Hcy remains unclear. To explore the association betwee...

From Ancient Legends to Pixels: Reconstructing Ancient Esna Landscape with GIS and Remote Sensing

Abstract. This paper develops a text-driven reconstruction of the ritual landscape associated with the Festival of Seizing the Staff at Esna, Upper Egypt. Temple inscriptions are treated as relational evidence encoding sequence, adjacency, orientation, thresholds, and ritual func...

The Significance of Diagenetic System Evolution to the Formation and Preservation of Hydrothermal Dolomite Reservoirs: A Case Study of the Permian Qixia Formation, Southwestern Sichuan, China

Abstract Understanding the evolution of diagenetic systems is crucial for elucidating the formation mechanisms of high-quality carbonate reservoirs. This study focuses on hydrothermal dolomite reservoirs developed in the platform margin zone of the Qixia Formation in the southwes...

Atomic‐Scale Mechanisms of Anisotropic Thermal Decomposition in GeSn Alloys With Stepwise Pinning

ABSTRACT Thermal decomposition of GeSn layers detrimentally affects device performance, while the governing mechanisms remain shrouded by the presence of SiO 2 passivation. In this work, we elucidate the atomic‐scale decomposition of GeSn during thermal degradation using in situ...

scProtoTransformer: Scalable reference mapping across molecules, cells, and donors

Abstract The rapid accumulation of single-cell data has made it possible to comprehensively characterize biological systems at molecular, cellular, and donor levels. However, scalable reference mapping across different resolutions remains a major challenge in current research. He...

Charge transport, not interaction range, bounds the Lieb-Schultz-Mattis twist cost

Geometric interaction range can overestimate the energy cost of a Lieb-Schultz-Mattis twist. We prove that, under the stated assumptions, every sufficiently large admitted periodic ring with L>3R has an explicit O(1/L) upper bound on its full spectral gap. The bound is governed b...

Stratified meta-analysis of rodent diabetic neuropathy nerve transcriptomes identifies a down-regulated structural core

This record contains the derived data and analysis code for the study "Stratified meta-analysis of rodent diabetic neuropathy nerve transcriptomes identifies a down-regulated structural core" (manuscript submitted to Disease Models & Mechanisms, 2026). Twelve rodent (mouse and ra...

Understanding digital capabilities and their relationship in digital transformation

Purpose Enterprises face barriers in digital transformation due to an unclear way to build digital capability. However, existing research on digital capability lacks a unified theoretical framework. This study aims to establish a theoretical framework to explain the formation mec...

Strategic breakthrough under ecological constraints: how biodiversity risk drives corporate mergers and acquisitions in China

Purpose This study examines how exposure to biodiversity risk shapes corporate merger and acquisition activities. Design/methodology/approach Using data on Chinese A-share firms listed on the Shanghai and Shenzhen stock exchanges from 2012 to 2023, this study employs a two-way fi...

Connectivity and Selective Rural Migration

ABSTRACT How does infrastructure shape rural development? Using household panel data from a nationally representative sample of Chinese villages, matched to high‐resolution highway maps, we find that road expansion between 2000 and 2015 operates mainly through reallocation, with...

Risk factor analysis and predictive model construction and evaluation of fractional uric acid excretion in Chinese inpatients with type 2 diabetes

Abstract Background and Aims: Fractional excretion of uric acid (FEUA) is currently acknowledged as a new risk factor of nephropathy. Precise measurement of FEUA requires withdraw medication during the washout time and 24h urine sample collecting, not always convenient, fostering...