Central South University

Climate change exposure and firm value in China: evidence consistent with a discount-rate interpretation

This paper examines the relationship between firm-level climate change exposure and firm value in China. Using A-share listed firms from 2002 to 2020 and a disclosure-based measure of perceived climate change exposure, we find a significant negative association between climate ch...

CLRFI: A multimodal tracking via contrast learning and region feature interaction

RGB-Thermal (RGB-T) target tracking algorithms aim to achieve robust all-weather tracking by leveraging the complementary properties of multiple modalities. Previous methods often fuse RGB and TIR search area features directly, which can introduce redundant background noise and l...

SIGMA-AD: spatio-temporal integrated graph Mamba architecture for multivariate time-series anomaly detection

Abstract Unsupervised multivariate time-series anomaly detection seeks to detect rare abnormal events in correlated sensor streams when dense anomaly labels are unavailable. Although Transformer-based methods have strengthened long-range representation learning, many still depend...

Empirical Post-Generation Correctness Assessment for Natural-Language Access to Urban PostGIS Databases

Natural-language interfaces make urban spatial databases accessible, but generated structured query language (SQL) can execute successfully while returning a semantically incorrect answer. We evaluate a post-generation correctness-ranking layer on 18,900 candidates from Nanjing,...

Fibroblast-associated migrasome programs define TSPAN4-driven progression and clinical risk stratification in gastric cancer

Gastric cancer (GC) is a highly aggressive malignancy with poor prognosis, characterized by complex tumor microenvironment (TME) interactions. Migrasomes have been implicated in cancer progression, but their specific roles and spatial correlation in GC remain unclear. Using 10x G...

Atmosphere-induced modulation for manufacturing quality and magnetostriction behavior in FeGa alloys fabricated by laser powder bed fusion

Laser powder bed fusion (LPBF), featuring high processing flexibility holds great promise for fabricating Fe Ga alloys with complex geometries and enhanced magnetostriction for next-generation smart devices. However, the turbulence and spatter in melt pool during LPBF consistentl...

Global burden and influencing factors of gastrointestinal diseases: a systematic review and meta-analysis

Abstract Background/objective Gastrointestinal diseases are significant public health conditions affecting millions globally. This review aims to meta-analyzed the pooled prevalence estimates and influencing factors of gastrointestinal diseases. Materials/methods We systematicall...

Activating the Anomalous Jahn–Teller Effect in NASICON-Type Mixed Phosphate Cathode via Crystal Field Engineering

Abstract High-voltage Mn3+/Mn2+ redox reactions in polyanionic cathodes offer the potential to increase energy density while reducing the cost of batteries. However, its practical application is hindered by sluggish reaction kinetics and asymmetric Jahn–Teller distortion. Herein,...

Immune-pressure redistribution in resistance to PD-1/PD-L1 blockade: mechanisms, biomarkers, and therapeutic design

PD-1/PD-L1 blockade can produce durable tumor control, yet primary, adaptive, and acquired resistance remain common. Existing accounts often catalogue resistance by cellular compartment, obscuring the coordinated nature of tumor adaptation. Here, we introduce immune-pressure redi...

Noise learning of audio magnetotellurics data with a combination of inception multi-scale residual and dual-decoder U-Net

Abstract Audio magnetotellurics (AMT), as a commonly used reliable geophysical technique, provides outstanding metal ore exploration capabilities based on the resistivity structure of the earth. However, the accuracy of data acquisition is significantly impacted by external elect...

METTL3-mediated m6A modification of RBM39 promotes cancer stemness and tumor progression in head and neck squamous cell carcinoma

Abstract Background RBM39 plays an important regulatory role in multiple cancers. However, its systematic function across pan-cancer and its specific mechanism in head and neck squamous cell carcinoma (HNSC) remain unclear. Materials and methods In this study, we performed pan-ca...

Timing of oral beta-blocker initiation and 90-day mortality in critically ill patients with acute myocardial infarction: a target trial emulation

Abstract Oral beta-blockers are used after acute myocardial infarction (AMI), but the optimal timing of initiation in critically ill patients is uncertain, and observational early-versus-late comparisons are prone to immortal-time bias. We emulated a target trial of early (≤ 24 h...

Characteristics of horizontal flame spread and merging of discrete fuel arrays with dual fire sources: Effect of array distribution and layout

Discrete fuel arrays in forest and built environments pose significant hazards during multiple fire source combustion. This study quantitatively investigates the influence of array distribution, through a systematic combination of eight array spacings ( S = 2–9 mm, stepped by 1 m...

The association between Oxidative Balance Score and anemia in adults

Oxidative stress is implicated in the pathogenesis of anemia. The Oxidative Balance Score (OBS), a comprehensive metric assessing the combined impact of dietary and lifestyle factors on oxidative stress, has not yet been investigated in relation to anemia prevalence. We conducted...

Land-use specific spatiotemporal scaling laws of urban vitality dynamics: Evidence from 30 Chinese cities

Urban vitality is a core attribute of livable, attractive, and sustainable cities. Studies have explored the spatiotemporal patterns of urban vitality and scaling laws in urban systems. However, whether scale-invariant vitality dynamics vary systematically across land-use categor...

Aplasia of the left common carotid artery with internal and external carotid arteries lacking separate origins and concomitant carotid–anterior cerebral artery anastomosis: a rare case report and literature review

Aplasia of the common carotid artery (ACCA) is a rare vascular anomaly. Patients are typically asymptomatic unless accompanied by other vascular abnormalities. This condition is usually associated with independent origins of the internal and external carotid arteries, whereas cas...

Balancing thermal insulation and mechanical performance in aerogel insulating mortar through synergistic cement-HPMC regulation

This study develops a synergistically regulated aerogel insulating mortar (AIM) by integrating aerogel-modified expanded perlite, hollow glass microspheres, and HPMC. Response surface methodology (RSM) quantifies the coupled effects of cement content and HPMC dosage on dry densit...

Null controllability for degenerate parabolic equations with internal control applied on a measurable subset

This paper investigates the null controllability of a class of two-dimensional linear parabolic equations with a boundary degeneracy on the domain Ω = 𝕋 × ( 0 , 1 ) , where the internal control acts on a space-time measurable subset of positive measure. Unlike conventional open c...

Comparison of demographic, clinical, and psychological characteristics among patients with irritable bowel syndrome meeting the Rome clinical, Rome V, and Rome IV criteria

BACKGROUND: The Rome clinical criteria for irritable bowel syndrome (IBS) were introduced to improve clinical applicability and represent an important advancement within the Rome V process. However, their clinical profiles relative to the standard Rome criteria remain unclear. ME...

Comparison of a Novel Occluder Versus Traditional Occluder in Atrial Septal Defect: A Randomized Trial

Background Traditional occluders for atrial septal defect have 2 drawbacks: incomplete endothelialization and difficulty in achieving atrial septum puncture post implantation. The novel occluder ReAces was designed to address these 2 clinical pain points. In this study, we aimed...