Sanya University

Chinese Painting Semantic Resource for Resolution-Aware Digitisation and Structured Heritage Access

Chinese painting digitisation poses a distinctive heritage-informatics challenge: culturally salient visual structures such as brushwork, intentional blank space, and text–image coexistence are difficult to document, access, and research with general-purpose collection and comput...

Research and Field Test of Autonomous Underwater Vehicles Cooperative‐Navigation Method in Terrain Mapping

ABSTRACT A cooperative‐navigation algorithm based on an extended Kalman filter (EKF) is proposed for Leader–Follower autonomous underwater vehicles (AUVs) to address inconsistencies in inter‐vehicle navigation coordinate systems caused by the absence of geo‐referencing signals in...

Soil Carbon Fractions and Aggregation Regulate N 2 O Emissions and Microbial N‐Cycling Genes: A Case Study Across Tropical Paddy Soils With Contrasting Organic Matter Levels

ABSTRACT Background : Nitrous oxide (N 2 O) is a major greenhouse gas, and its production is shaped by soil organic matter (SOM). Yet, how different SOM‐derived labile carbon fractions regulate N 2 O remains unclear, especially in tropical paddy soils where weak SOM stabilization...

Physiological, Transcriptomic, and Metabolomic Insights into Ammonia-Nitrogen Stress in the Hepatopancreas of Litopenaeus vannamei Acclimated to Low Salinity

Elevated ammonia nitrogen significantly reduces the survival rate of Litopenaeus vannamei under low-salinity conditions. Low-salinity culture is widely adopted in shrimp farming but susceptible to ammonia accumulation; however, relevant studies mainly focus on juvenile shrimp und...

Preliminary Kinetic Assessment of Quality Deterioration and Shelf-Life Estimation in Yellowfin Tuna Under Different Constant Storage Temperatures

The quality of yellowfin tuna is highly vulnerable to microbial proliferation, which accelerates quality deterioration and spoilage throughout storage. In this study, the dynamic changes in biogenic amines (BAs), total volatile basic nitrogen (TVB-N), and total plate count (TPC)...

Vanillin Improves Antioxidant Capacity, Immunity, and Gut Microbiota in Broilers

Wle vanillin is widely used as a flavoring agent in food products, its potential as a non-antibiotic feed additive for broilers remains unexplored. This study primarily investigated the effects of dietary supplementation of vanillin on antioxidant activity, anti-inflammatory resp...

From work-unit member to social individual

The dissolution of China’s work-unit system has reshaped retirement, but how transition patterns relate to long-term depressive symptom trajectories and whether leisure reconfiguration mediates this relationship remain unclear. To examine the longitudinal association between reti...

Thermal‐Induced Loose Solute Configuration Activates Organic Electrolyte for Zinc Metal Battery

ABSTRACT Zinc metal batteries face issues of low coulombic efficiency and persistent side reactions due to the active H 2 O in aqueous electrolytes. Organic electrolytes that can reduce side reactions and coulombic efficiency loss still suffer from sluggish Zn 2+ transfer and dif...

Full-length transcriptome atlas of Panax vietnamensis var. fuscidiscus reveals novel genes and alternative splicing in tissue-specific biosynthesis of ocotillol-type saponins

Panax vietnamensis var. fuscidiscus is the only known Panax species that accumulates exceptionally high levels of ocotillol (OCT)-type ginsenosides, particularly majonoside R2. However, the molecular mechanisms underlying OCT-type ginsenoside biosynthesis remain largely uncharact...

Primes as Sums of Consecutive Composites: Classification and a Modulo-12 Constraint

This work introduces a constructive framework representing primes as sums of consecutive composites. Two representation types are defined: Type1 (Pure Representation): A prime p is expressed as the sum of consecutive composite numbers. Type2 (Corrected Representation): A prime p...

Partial soil wetting and drying regulate root water uptake in deep-rooted apple orchard

The drought-prone Chinese Loess Plateau (CLP) apple trees have roots that extend deep into the soil. Even when the upper soil layers (0–10 m) are above the permanent wilting point, deep (>10 m) root water uptake (RWU) occurs; the reasons for the deep RWU remain unknown. This stud...

Heat-Related Health Risk Assessment and Spatial Differentiation of Local Climate Zones at the County Scale: A Case Study of Fuzhou

As climate change intensifies and urbanization continues, Fuzhou faces growing public health risks from the urban heat island effect. This study develops a Heat Risk Index (HRI) by integrating the Local Climate Zone (LCZ) classification with the Crichton Risk Triangle framework....

Imputed whole genome sequence based association pinpoints genetic architecture of labour dystocia of pigs using multi-breed populations

Abstract Background Labour dystocia (LAD) in sows is a common reproductive disorder that reduces piglet survival rates and increases the number of stillbirths, causing substantial economic losses to pig farms. However, the genetic basis of LAD remains elusive. Herein, we performe...

A cooperative regulatory module between TAGL2 and JMJC1 activates specific defense genes against root‐knot nematodes in tomato

Summary Plant‐parasitic nematodes (PPNs) threaten global food security. Although epigenetic modifications are crucial for plant immunity, how histone modifiers contribute to root‐knot nematodes (RKNs, Meloidogyne incognita ) resistance remains unclear. Here, using genetic, molecu...

Two‐Dimensional Conjugated Metal Organic Frameworks with Dual Metal Catalytic Active Sites Enhance POD Activity for Antibacterial Treatment

ABSTRACT The emergence of drug‐resistant bacteria has brought a grand challenge to the treatment of oral ulcers (OUs). Peroxidase (POD) enzymes catalyze the conversion of hydrogen peroxide (H 2 O 2 ) into reactive oxygen species (ROS), offering a promising strategy for treating d...

Why Does AI Platform Competition Diverge? A Dynamic Analysis of Adoption, Recommendation Mechanisms, and Price Feedback

Generative AI and agentic systems are reshaping platform competition and its long-run welfare consequences. Existing research, however, does not explain why similar AI interventions can produce concentration, costly quality races, cyclical repricing, and different welfare outcome...

pH-Regulated Acidogenic Fermentation of Chicken Manure Promotes Lactic Acid and Acetic Acid Production While Limiting Nitrogen Release

Acidogenic fermentation offers a promising approach to convert chicken manure into carbon-rich liquid products for various practical applications. However, the high nitrogen content in chicken manure hinders acidogenesis and limits product utilization due to ammonium accumulation...

Targeting the immune-metabolic axis reverses orthodontics-induced systemic pathology

Orthodontic treatment corrects various craniofacial malformations primarily through triggering active alveolar bone remodeling, however the potential impacts of this intervention on the systemic immune state have long been insufficiently explored. Here, we show that mechanical fo...

Effects of artificial compound feed, mixed feeding and cannibalism of conspecifics on growth performance, physiological status and metabolic gene expression in juvenile barramundi ( Lates calcarifer )

To optimize feeding strategies for juvenile barramundi ( Lates calcarifer ), this study compared the effects of cannibalism-based feeding (CB), formulated feed (FF), and a mixed feeding regime (MIX; formulated feed combined with biological feed) on growth performance, physio-logi...