Jia Chen

ORCID: 0000-0003-2465-9443
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About
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Research Areas
  • Statistical Methods and Inference
  • Railway Engineering and Dynamics
  • Fluorine in Organic Chemistry
  • Civil and Geotechnical Engineering Research
  • Medical Research and Treatments
  • Structural Engineering and Vibration Analysis
  • Organophosphorus compounds synthesis
  • Advanced biosensing and bioanalysis techniques
  • HIV/AIDS Research and Interventions
  • Online and Blended Learning
  • Spatial and Panel Data Analysis
  • Advanced Statistical Process Monitoring
  • Phytochemistry and Bioactivity Studies
  • Assembly Line Balancing Optimization
  • Innovative Teaching Methods
  • Mathematical Biology Tumor Growth
  • Infant Development and Preterm Care
  • Copper-based nanomaterials and applications
  • Plant-derived Lignans Synthesis and Bioactivity
  • Adaptive Control of Nonlinear Systems
  • Healthcare Quality and Management
  • Primary Care and Health Outcomes
  • Ferrocene Chemistry and Applications
  • Construction Engineering and Safety
  • Diabetic Foot Ulcer Assessment and Management

Sichuan University of Arts and Science
2023

Central South University
2008-2022

University of York
2019-2021

Fourth People's Hospital of Sichuan Province
2021

The Fourth People's Hospital
2021

Guilin University of Electronic Technology
2021

San Jose State University
2020

Davidson College
2020

BOE Technology Group (China)
2020

Monash University
2013

Idiopathic pulmonary fibrosis (IPF) can severely disrupt lung function, leading to fatal consequences, and there is currently a lack of specific therapeutic drugs. Bergenin an isocoumarin compound with lots biological functions including antioxidant activity. This study evaluated the potential beneficial effects bergenin on investigated possible mechanisms. We found that alleviated bleomycin-induced by relieving oxidative stress, reducing deposition extracellular matrix (ECM) inhibiting...

10.3390/antiox11020307 article EN cc-by Antioxidants 2022-02-03

We designed a randomized controlled trial of home based intervention to improve antiretroviral adherence and assess the impact depressive symptoms among people living with HIV in Hunan, China. At baseline, 110 subjects reported taking 90% or less prescribed medication. 6 months, when ended, 56% control 87% experimental group were adherent. This difference was maintained at 12 months. In multivariate analyses, controlling for baseline visual analogue scale, stigma, social support, Center...

10.1089/apc.2014.0070 article EN AIDS Patient Care and STDs 2014-07-21

In this article, we study semiparametric estimation for a single-index panel data model where the nonlinear link function varies among individuals. We propose using refined minimum average variance method to estimate parameter in single-index. As cross-section dimension N and time series T tend infinity simultaneously, establish asymptotic distributions proposed estimator. addition, provide real-data example illustrate finite sample behavior of method.

10.1080/07474938.2012.690687 article EN Econometric Reviews 2013-03-13

Objective To explore nurse managers' perceptions of the frequency and importance professional activities performed in their daily work public hospitals Hunan, China. Background Nurse managers are responsible for management almost all nursing Chinese hospitals. Understanding how operationalize role each activity is essential clarification competencies required to perform it. Methods A cross-sectional questionnaire survey. Results total 1,371 Hunan Province completed Nursing quality/safety...

10.1111/jonm.13110 article EN Journal of Nursing Management 2020-07-27

Abstract Effective linkage of DNA onto metal surfaces plays a crucial role in the applications as electrochemical recognition, signal output and amplification devices for gene protein detections, specific analyte recognitions, catalysis, so on. Here we report promising operationally simple approach construction double‐stranded DNA‐linked Au interface via Au−C bond (RdsDNA‐C−Au), upon efficient situ cleavage trimethylsilyl end group 4‐[(trimethylsilyl) ethynyl] benzoic acid subsequent...

10.1002/elan.201800673 article EN Electroanalysis 2018-12-05

This paper explores the homogeneity of coefficient functions in nonlinear models with functional coefficients and identifies underlying semiparametric modelling structure. With initial kernel estimates, we combine classic hierarchical clustering method a generalised version information criterion to estimate number clusters, each which has common coefficient, determine membership cluster. To identify possible semi-varying framework, further introduce penalised local least squares zero...

10.1080/10485252.2021.1951265 article EN cc-by Journal of nonparametric statistics 2021-07-14

We study the problem of approximating functions $d$ variables in average case setting for $L_2$ space $L_{2,d}$ with standard Gaussian weight equipped a zero-mean measure. The covariance kernel this measure takes form non-increasing positive shape parameters $\gamma_j^2$ $j = 1, 2, \dots, d$. error approximation is defined norm $L_{2,d}$. algorithms that use at most $n$ arbitrary continuous linear functionals. information complexity $n(\varepsilon, d)$ as minimal number functionals which are...

10.48550/arxiv.1802.01302 preprint EN other-oa arXiv (Cornell University) 2018-01-01

Aiming to design an adaptive observer for one-sided Lipschitz nonlinear systems, the paper focuses on extensions restrictive nature of continuity condition and conservativeness approaches proposed in past. Main contributions include following four aspects. Firstly, new sufficient conditions existence asymptotical stability are developed by using LMI approach, which can be easily solved via standard numerical software. Then, scheme presented cope with situation where constant is unknown,...

10.4028/www.scientific.net/amm.336-338.417 article EN Applied Mechanics and Materials 2013-07-01

In this paper, application of a hierarchical predictive controller in an accurate model open-channel system is presented. The based on the linearized Saint-Venant equations, set partial differential which describes hydraulic dynamics canals and implemented by Simulation Irrigation Canals (SIC). consists two layers. lower layer made up numerous local proportional integral controllers (PID controllers) order to regulate each gate rapidly, while higher centralized that modifies setpoints PID...

10.1109/wcica.2018.8630719 article EN 2018-07-01

This paper considers pointwise estimations of anisotropic regression functions. We firstly construct a linear wavelet estimator and study the convergence rate this in Besov spaces. In order to obtain an adaptive estimator, is proposed with scaling parameter data-driven selection rule. It turns out that our results attain optimal nonparametric estimation.

10.3390/math12010098 article EN cc-by Mathematics 2023-12-27

At ambient conditions SrAl4 adopts the BaAl4 structure type with space group I4/mmm. It undergoes a charge-density-wave (CDW) transition at TCDW = 243 K, followed by structural TS 87 K. Temperature-dependent single-crystal X-ray diffraction (SXRD) leads to observation of incommensurate superlattice reflections q \sigma c* 0.1116 200 The CDW has orthorhombic symmetry acentric superspace F222(00sigma)00s, where F222 is subgroup Fmmm as well Atomic displacements mainly represent transverse...

10.48550/arxiv.2309.08959 preprint EN cc-by arXiv (Cornell University) 2023-01-01

10.4156/ijact.vol4.issue21.69 article EN International Journal of Advancements in Computing Technology 2012-11-28
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