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Articles by Xiaochen Ma
K12-KGraph: A Curriculum-Aligned Knowledge Graph for Benchmarking and Training Educational LLMs
Abstract Large language models are increasingly used in K-12 education, but existing benchmarks mainly test exam question answering rather than understanding how curriculum knowledge is structured and visually presented. We call this capability curriculum cognition. It covers prerequisite chains, concept taxonomies, experiment-concept links, pedagogical sequencing, and visual grounding.
Computer Science > Computer Vision and Pattern Recognition
arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.
Optimizing vaccination scheduling during influenza outbreaks: a SEIAR-based model for balancing routine and emergency vaccination demands
Abstract Background: Efficient scheduling of vaccinations, particularly during influenza outbreaks, poses significant challenges due to limited service capacity and the need to balance routine immunization with emergency vaccination demands. Methods: We developed a mathematical optimization model integrating an SEIAR influenza transmission framework to determine optimal service capacity allocation.
Decision-making for pediatric vaccination scheduling under multiple constraints: a case study from China✰
Abstract Introduction: Providing timely and equitable pediatric vaccination services is a fundamental responsibility of public health systems. As vaccination schedules become more complex-with an increasing number of vaccines, age-specific eligibility rules, and strict dose interval requirements-vaccination centers are under growing pressure to manage routine services while still being able to respond to epidemic-related demand.
Multilevel Analysis of Drug Use Patterns in China: Trends and Regional
Back to Journals » Substance Abuse and Rehabilitation » Volume 17 Authors Ma X, Chen Z, Yao D, Su H, Su M Received 26 September 2025 Accepted for publication 28 January 2026 Published 5 February 2026 Volume 2026:17 Pages 1—18 DOI https://doi.org/10.2147/SAR.S570414 Checked for plagiarism Yes Review by Single anonymous peer review Peer reviewer comments 2 Editor who approved publication: Dr Rajendra Badgaiyan Xiaochen Ma,1,2 Zepeng Chen,2 Danqi Yao,2 Hang Su,3,4 Min Su2 1Department of...
ForensicHub: A Unified Benchmark & Codebase for All-Domain Fake Image Detection and Localization
Work on one of the world's most important websites and make an impact on open science.
An Adaptive Connecting Equivalent Magnetic Network Considering Local Magnetic Characteristics for SPM Motors
References 1, , and , “Design Process and Verification of SPMSM for a Wearable Robot Considering Thermal Characteristics Through LPTN,” IEEE/ASME Transactions on Mechatronics 26 (2021): 1033–1042, https://doi.org/10.1109/TMECH.2020.3015561. 2, , , , , and , “Robust Design Optimization of SPMSM for Robotic Actuator Considering Assembly Imperfection of Segmented Stator Core,” IEEE Transactions on Energy Conversion 35 (2020): 2076–2085, https://doi.org/10.1109/TEC.2020.2999127.
Do Socialized Agricultural Services Promote Smallholder Participation in Large Markets? Evidence From Grain Farmers in China
2SLS two-stage least squares ATE average treatment effect CMP conditional mixed process CRRS China rural revitalization survey IMR inverse Mills ratio IV instrumental variable MOA motivation–opportunity–ability PSM propensity score matching SASs socialized agricultural services 1 Introduction Smallholder farmers cultivate 75% of global farmland and produce 70% of the world's food, playing a key role in achieving the Sustainable Development Goals (SDGs) and the Paris Agreement related to food...
A Multifunctional Nanodrug Co-Delivering VEGF-siRNA and Dexamethasone for Synergistic Therapy in Ocular Neovascular Diseases
Abstract Introduction Oxidant stress, abnormal angiogenesis, and inflammation are three key factors contributing to the development of ocular neovascular diseases (ONDs). This study aims to develop a multifunctional nanodrug, DEX@MPDA-Arg@Si (DMAS), which integrates mesoporous polydopamine, vascular endothelial growth factor (VEGF)-siRNA, and dexamethasone (DEX) to address these therapeutic targets.
Static program analysis for IoT risk mitigation in space-air-ground integrated networks
All issues Volume 3 (2024) Security and Safety, 3 (2024) 2024007 Full HTML Issue Security and Safety Volume 3, 2024 Security and Privacy for Space-Air-Ground Integrated Networks Article Number 2024007 Number of page(s) 15 Section Software Engineering DOI https://doi.org/10.1051/sands/2024007 Published online 30 April 2024 Security and Safety, Vol.
Feasibility Analysis of Indirect Evaporative Cooling System Assisted by Liquid Desiccant for Data Centers in Hot-Humid Regions
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Barriers to uptake of cataract surgery among elderly patients in rural China: a cross-sectional study
Barriers to uptake of cataract surgery among elderly patients in rural China: a cross-sectional study Statistics from Altmetric.com Request Permissions If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.
sPD-1 Expression In Individuals With HCC Treated By D-TACE
Back to Journals » Journal of Hepatocellular Carcinoma » Volume 11 Authors Ma X, Sun X, Xie F, Jian W, Wang Q, Xie Y, Li C, Zhang K Received 29 November 2023 Accepted for publication 20 March 2024 Published 25 March 2024 Volume 2024:11 Pages 619—628 DOI https://doi.org/10.2147/JHC.S452409 Checked for plagiarism Yes Review by Single anonymous peer review Peer reviewer comments 2 Editor who approved publication: Dr David Gerber Xiaochen Ma, Xiangyang Sun, Fubo Xie, Wencheng Jian, Qingliang...
Enabling Privacy-Preserving Data Sharing with Bilateral Access Control for Cloud
1. Introduction Recently, cloud services [1] have been rapidly promoted by the development of the internet technique. As a widely used paradigm of outsourcing service, the cloud has been accepted by the market (e.g., iCloud, Dropbox, and Microsoft Cloud), providing a convenient and low-cost method for data storage and data sharing [2].
[2309.14900] Pre-training-free Image Manipulation Localization through Non-Mutually Exclusive Contrastive Learning
arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.
Sweroside functionalized with Mesenchymal Stem cells derived exosomes attenuates sepsis-induced myocardial injury by modulating oxidative stress and apoptosis in rats - Jianghai Wang, Xiaochen Ma, Xuepeng Si, Wang Han, 2023
Get full access to this article View all access and purchase options for this article. References 1. Song W, Zhang T, Yang N, et al. Inhibition of micro RNA miR-122-5p prevents lipopolysaccharide-induced myocardial injury by inhibiting oxidative stress, inflammation and apoptosis via targeting GIT1. Bioengineered 2021;12:1902–1915. 2. Tang S, Fu C, Xu Q, et al. Ticagrelor alleviates sepsis-induced myocardial injury via an adenosine-dependent pathway in a mouse sepsis model.
One-Base-Gap Circular Probe-Mediated Dual Amplification for Isothermal Detection of N6-Methyladenosine Modifications
Download Hi-Res ImageDownload to MS-PowerPointCite This:Anal. Chem. 2023, XXXX, XXX Terms & Conditions Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses).
Combination of RCA and DNAzyme for Dual-Signal Isothermal Amplification of Exosome RNA
Abstract : The RNA contained in exosomes plays a crucial role in information transfer between cells in various life activities. The accurate detection of low-abundance exosome RNA (exRNA) is of great significance for cell function studies and the early diagnosis of diseases. However, their intrinsic properties, such as their short length and high sequence homology, represent great challenges for exRNA detection.
Direct Growth of Patterned Vertical Graphene Using Thermal Stress Mismatch between Barrier Layer and Substrate
Abstract : Vertical graphene (VG) combines the excellent properties of conventional graphene with a unique vertical nanosheet structure, and has shown tremendous promise in the field of electronics and composites. However, its complex surface morphology brings great difficulties to micro-nano fabrication, especially regarding photolithography induced nanosheet collapse and remaining chemical residues.
Anisotropic Microspheres-Cryogel Composites Loaded with Magnesium l-Threonate Promote Osteogenesis, Angiogenesis, and Neurogenesis for Repairing Bone Defects | Biomacromolecules
To achieve osteogenesis, angiogenesis, and neurogenesis for repairing bone defects, we constructed an anisotropic microspheres–cryogel composite loaded with magnesium l-threonate (MgT). These composites were prepared by the photo-click reaction of norbornene-modified gelatin (GB) in the presence of MgT-loaded microspheres through the bidirectional freezing method.
An Ultracompact Angular Displacement Sensor Based on the Talbot Effect of Optical Microgratings
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In Vitro Fermentation of Beechwood Lignin–Carbohydrate Complexes Provides Evidence for Utilization by Gut Bacteria
Abstract : Lignin–carbohydrate complexes (LCCs) are emerging as a new and natural product with pharmacological and nutraceutical potential. It is uncertain, however, whether LCCs have a positive effect on the microbiota of the gut based on the current evidence. Here, the LCC extracted from beechwood (BW-LCC) was used as a substrate for in vitro fermentation. The lignin in BW-LCC consisted of guaiacyl (G) and syringyl (S) units, which are mainly linked by β-O-4 bonds.
The Revision and Application of Aurora in China: Based on Successful Intelligence
Abstract : Aurora Battery is a corresponding test of successful intelligence. This study aims to examine the factorial structure of the Chinese version of Aurora Battery and to investigate its internal consistency and validity, as well as to discover the developmental features of Chinese students. A total number of 2007 students were recruited from 13 schools across eastern, central, and western China, ranging from 4th to 8th grade (mean age = 12.29 years) and among them, 43.9% are girls.
Out-of-plane displacement sensor based on the Talbot effect in angular-modulated double-layer optical gratings
Abstract Based on the Talbot effect of optical gratings, we propose a novel out-of-plane optical displacement sensor with an ultracompact structure, to the best of our knowledge. Using two optical gratings with a slight angle between them, two angular-modulated signals with a phase difference of 90° are obtained associated with a two-quadrant photodetector, which are in sinusoidal relationship with the displacement in the direction perpendicular to the grating plane.
Longitudinal associations between self-reported vision impairment and all-cause mortality: a nationally representative cohort study among older Chinese adults
Discussion Considering China’s population size, its rapidly ageing population, and the rising prevalence of chronic diseases, the burden of vision loss among Chinese people is and will remain an important public health problem in the future .42 To our knowledge, this is the first nationally representative study to estimate the impact of self-reported VI on all-cause mortality among middle-aged and elderly adults in China.
Effect of an outpatient copayment scheme on health outcomes of hypertensive adults in a community-managed population in Xinjiang, China
Loading metrics Open Access Peer-reviewed Research Article Hongpo Yin , Xiaochen Ma , Yanli He, Rujiang Liang, Yongxin Wang, Mei Zhang, Lu Mao, Mingxia Jing Hongpo Yin, Xiaochen Ma, Yanli He, Rujiang Liang, Yongxin Wang, Mei Zhang, Lu Mao, Mingxia Jing Published: September 11, 2020 https://doi.org/10.1371/journal.pone.0238980 Figures Abstract Hypertension remains the leading risk factor for death and disability in China, and the ability of hypertensive patients to pay for outpatient care and...
Effects of Digital Device Ownership on Cognitive Decline in a Middle-Aged and Elderly Population: Longitudinal Observational Study
Citation Please cite as: Loading authors... Download: Published on 29.07.19 in Vol 21, No 7 (2019): July Preprints (earlier versions) of this paper are available at http://preprints.jmir.org/preprint/14210, first published Mar 30, 2019.
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