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Protection motivation theory and cigarette smoking among vocational high school students in China:a cusp catastrophe modeling analysis

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Global Health Research and Policy 2016年第1期1卷 18-26页

作者： yunan xu Xinguang Chen University of Florida GainesvilleFloridaUSA Wuhan University Global Health Institute WuhanChina Wuhan Center for Disease Prevention and Control WuhanChina

Background:Tobacco use is one of the greatest public health problems worldwide and the hazards of cigarette smoking to public health call for better recognition of cigarette smoking behaviors to guide evidence-based *** motivation theory(PMT)provides a conceptual framework to investigate tobacco *** from diverse sources implies that the dynamics of smoking behavior may be quantum in nature,consisting of an intuition and an analytical process,challenging the traditional linear continuous analytical *** this study,we used cusp catastrophe,a nonlinear analytical approach to test the dual-process hypothesis of cigarette ***:Data were collected from a random sample of vocational high school students in China(n=528).The multivariate stochastic cusp modeling was used and executed with the Cusp Package in *** PMT-based Threat Appraisal and Coping Appraisal were used as the two control variables and the frequency of cigarette smoking(daily,weekly,occasional,and never)in the past month was used as the outcome ***:Consistent with PMT,the Threat Appraisal(asymmetry,α1=0.1987,p<0.001)and Coping Appraisal(bifurcation,β2=0.1760,p<0.05)significantly predicted the smoking behavior after controlling for ***,the cusp model performed better than the alternative linear and logistic regression models with regard to higher R2(0.82 for cusp,but 0.21 for linear and 0.25 for logistic)and smaller AIC and ***:Study findings support the conclusion that cigarette smoking in adolescents is a quantum process and PMT is relevant to guide studies to understand smoking behavior for smoking prevention and cessation.

关键词： Quantum change Cusp catastrophe modeling Cigarette smoking Adolescents

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Federated learning-outcome prediction with multi-layer privacy protection

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Frontiers of Computer Science 2024年第6期18卷 186604页

作者： ZHANG Yupei LI Yuxin WANG Yifei WEI Shuangshuang xu yunan SHANG xuequn School of Computer Science Northwestern Polytechnical University MIIT Lab of Big Data Storage and Management

Learning-outcome prediction (LOP) is a long-standing and critical problem in educational routes. Many studies have contributed to developing effective models while often suffering from data shortage and low generalization to various institutions due to the privacy-protection issue. To this end, this study proposes a distributed grade prediction model, dubbed FecMap, by exploiting the federated learning (FL) framework that preserves the private data of local clients and communicates with others through a global generalized model. FecMap considers local subspace learning (LSL), which explicitly learns the local features against the global features, and multi-layer privacy protection (MPP), which hierarchically protects the private features, including model-shareable features and not-allowably shared features, to achieve client-specific classifiers of high performance on LOP per institution. FecMap is then achieved in an iteration manner with all datasets distributed on clients by training a local neural network composed of a global part, a local part, and a classification head in clients and averaging the global parts from clients on the server. To evaluate the FecMap model, we collected three higher-educational datasets of student academic records from engineering majors. Experiment results manifest that FecMap benefits from the proposed LSL and MPP and achieves steady performance on the task of LOP, compared with the state-of-the-art models. This study makes a fresh attempt at the use of federated learning in the learning-analytical task, potentially paving the way to facilitating personalized education with privacy protection.

关键词： federated learning local subspace learning hierarchical privacy protection learning outcome prediction privacy-protected representation learning

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图书馆如何嵌入城市——民国上海旅行指南中的图书馆

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图书馆论坛 2023年第5期43卷 62-70页

作者：张劼圻徐宇南上海大学文化遗产与信息管理学院

随着“文旅融合”战略指出,图书馆与旅游的关系成为研究热点。图书馆应该成为怎样的景观、是否会在与旅游结合中逐渐消解自身本来的意义等问题值得思考。文章借鉴芝加哥学派中的城市社会学理论,以民国时期上海旅行指南中的图书馆为研究... 详细信息

随着“文旅融合”战略指出,图书馆与旅游的关系成为研究热点。图书馆应该成为怎样的景观、是否会在与旅游结合中逐渐消解自身本来的意义等问题值得思考。文章借鉴芝加哥学派中的城市社会学理论,以民国时期上海旅行指南中的图书馆为研究对象,对这些图书馆进行空间分析,力图还原它们所处场景。研究发现:它们中的绝大部分没有显眼的外观,隐藏在闹市一角,与日常生活紧密结合,这说明图书馆嵌入城市的方式是多样的、复杂的、灵活的。

关键词：图书馆文旅融合旅行指南

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图书馆学与地理学双重视角下公共图书馆选址问题的回顾性考察

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图书馆杂志 2024年第9期43卷 46-54页

作者：张劼圻葛婉娩徐宇南上海大学文化遗产与信息管理学院上海200444

数字技术的发展与普及并没有削弱公共图书馆物理可及性的重要程度,城市化进程和生活方式的演变也让图书馆选址成了一个更加复杂的问题。本文通过梳理历史上对这个问题的论述,考察观点之间的异同,分析它们的旨趣与方法,为之后的公共图书... 详细信息

数字技术的发展与普及并没有削弱公共图书馆物理可及性的重要程度,城市化进程和生活方式的演变也让图书馆选址成了一个更加复杂的问题。本文通过梳理历史上对这个问题的论述,考察观点之间的异同,分析它们的旨趣与方法,为之后的公共图书馆选址提供参考。文章发现,学者们都认可图书馆选址对其自身以及所在城市非常重要,但文化、学科以及城市化程度都会影响到学者对于图书馆选址问题的认识。

关键词：公共图书馆图书馆地理学地址

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儿童慢性乙型肝炎的抗病毒治疗

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儿科药学杂志 2017年第2期28卷 57-61页

作者：常宇南许红梅重庆医科大学附属儿童医院重庆400014

乙肝病毒（HBV）感染呈世界性分布,我国是乙型肝炎（乙肝）高发区,约1.2亿人携带HBV,其中50%~75%的人有活动性病毒复制的慢性乙肝,每5年中约有6%~15%的人由代偿性肝硬化发展至肝癌[1]。但自2002年乙肝疫苗被正式纳入计划免疫后,乙肝疫... 详细信息

乙肝病毒（HBV）感染呈世界性分布,我国是乙型肝炎（乙肝）高发区,约1.2亿人携带HBV,其中50%~75%的人有活动性病毒复制的慢性乙肝,每5年中约有6%~15%的人由代偿性肝硬化发展至肝癌[1]。但自2002年乙肝疫苗被正式纳入计划免疫后,乙肝疫苗接种率大幅升高,2006年全国乙肝流行病学调查示,5岁以下儿童的乙型肝炎s抗原（HBsA g）携带率仅为0.96%,

关键词：乙型肝炎乙肝疫苗接种抗病毒代偿性肝硬化病毒复制慢性乙肝血清学转换恩替卡韦替比夫定干扰素-α

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层次分析法在信息披露质量评估中的应用——以公益基金会为例

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中国资产评估 2020年第4期 35-42页

作者：王伟红徐玉楠朱蒙雅山东财经大学会计学院

基于层次分析法,构建公益基金会在线信息披露的评估体系并进行信息披露评估并分析。研究表明,公益基金会信息披露质量总体较差,区域差异不明显,但不同关注领域的基金会信息披露质量存在显著差异,其中关注扶贫救灾领域的基金会信息披露... 详细信息

基于层次分析法,构建公益基金会在线信息披露的评估体系并进行信息披露评估并分析。研究表明,公益基金会信息披露质量总体较差,区域差异不明显,但不同关注领域的基金会信息披露质量存在显著差异,其中关注扶贫救灾领域的基金会信息披露质量最高;信息披露的内容多为公益项目信息,而对于敏感的财务信息以及捐款收入、捐款支出等信息披露不全面、不及时,应优化制度设计、改进基金会的内部管理并加强对基金会的监管。

关键词：公益基金会信息披露评估体系层次分析法

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Aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders:progress of experimental models based on disease pathogenesis

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Neural Regeneration Research 2025年第2期20卷 354-365页

作者： Li xu Huiming xu Changyong Tang Department of Neurology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Neuromyelitis optica spectrum disorders are neuroinflammatory demyelinating disorders that lead to permanent visual loss and motor *** date,no effective treatment exists as the exact causative mechanism remains ***,experimental models of neuromyelitis optica spectrum disorders are essential for exploring its pathogenesis and in screening for therapeutic *** most patients with neuromyelitis optica spectrum disorders are seropositive for IgG autoantibodies against aquaporin-4,which is highly expressed on the membrane of astrocyte endfeet,most current experimental models are based on aquaporin-4-IgG that initially targets *** experimental models have successfully simulated many pathological features of neuromyelitis optica spectrum disorders,such as aquaporin-4 loss,astrocytopathy,granulocyte and macrophage infiltration,complement activation,demyelination,and neuronal loss;however,they do not fully capture the pathological process of human neuromyelitis optica spectrum *** this review,we summarize the currently known pathogenic mechanisms and the development of associated experimental models in vitro,ex vivo,and in vivo for neuromyelitis optica spectrum disorders,suggest potential pathogenic mechanisms for further investigation,and provide guidance on experimental model *** addition,this review summarizes the latest information on pathologies and therapies for neuromyelitis optica spectrum disorders based on experimental models of aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders,offering further therapeutic targets and a theoretical basis for clinical trials.

关键词： aquaporin-4 experimental model neuromyelitis optica spectrum disorder pathogenesis

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Rock fracture mechanism of buffer blasting with cushion layer at the borehole bottom

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 325-334页

作者： Xinguang Zhu Chenxi Ding Zhe Sui Hong Su xu Guo School of Civil and Resources Engineering University of Science and Technology BeijingBeijing 100083China Key Laboratory for Mechanics in Fluid Solid Coupling Systems Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Mechanics and Civil Engineering China University of Mining and Technology(Beijing)Beijing 100083China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China

This study primarily investigates the rock fracture mechanism of bottom cushion layer blasting and explores the effects of the bottom cushion layer on rock *** involves analyses of the evolution patterns of blasting stress,characteristics of crack distribution,and rock fracture features in the ***,blasting model experiments were carried out using the dynamic caustics principle to investigate the influence of bottom cushion layers and initiation methods on the integrity of the bottom rock *** experimental results indicate that the combined use of bottom cushion layers and inverse initiation effectively protects the integrity of the bottom rock ***,the process of stress wave propagation and dynamic crack propagation in rocks was simulated using the continuum-discontinuum element method(CDEM)and the Landau explosion source model,with varying thicknesses of bottom cushion *** numerical simulation results indicate that with increasing cushion thickness,the absorption of energy generated by the explosion becomes more pronounced,resulting in fewer cracks in the bottom rock *** illustrates the positive role of the cushion layer in protecting the integrity of the bottom rock mass.

关键词： bottom cushion layer blasting crack propagation continuum-discontinuum element method dynamic stress intensity factor

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Superhydrophobic and corrosion-resistant siloxane-modified MgAl-LDHs coatings on magnesium alloy prepared under mild conditions

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 450-463页

作者： Wenxi Zhang Zhangzelong Zhuo Dan xu Liang Wu Zhihui Xie Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical EngineeringChina West Normal UniversityNanchong 637002China College of Materials Science and Engineering/National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China

We have developed a superhydrophobic and corrosion-resistant LDH-W/PFDTMS composite coating on the surface of Mg *** composite comprised a tungstate-intercalated(LDH-W)underlayer that was grown at low temperature(relative to hydrothermal reaction conditions)under atmospheric pressure and an outer polysiloxane layer created from a solution containing perfluorodecyltrimethoxysilane(PFDTMS)using a simple immersion *** successful intercalation of tungstate into the LDH phase and the following formation of the polysiloxane layer were confirmed through X-ray diffraction(XRD),Fourier transform infrared(FTIR)spectroscopy,and X-ray photoelectron spectroscopy(XPS).The corrosion resistance of the LDH-W film,both before and after the PFDTMS modification,was evaluated using electrochemical impedance spectroscopy(EIS),Tafel curves,and immersion *** results showed that Mg coated with LDH-W/PFDTMS exhibited significantly enhanced corrosion protection compared to the unmodified LDHW film,with no apparent signs of corrosion after exposure to 3.5wt%NaCl solution for 15 ***,the LDH-W/PFDTMS coating demonstrated superior superhydrophobicity and self-cleaning properties against water and several common beverages,as confirmed by static contact angle and water-repellency *** results offer valuable insights into preparing superhydrophobic and corrosion-resistant LDH-based composite coatings on Mg alloy surfaces under relatively mild reaction conditions.

关键词： Mg alloy corrosion coating layered double hydroxide

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Reducing the measurement errors in nonadiabatic holonomic quantum computers

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 64-70页

作者： Guo-Fu xu Department of Physics Shandong University

Nonadiabatic holonomic quantum computers serve as the physical platform for nonadiabatic holonomic quantum *** quantum computation has entered the noisy intermediate-scale era, building accurate intermediate-scale nonadiabatic holonomic quantum computers is clearly necessary. Given that measurements are the sole means of extracting information, they play an indispensable role in nonadiabatic holonomic quantum computers. Accordingly, developing methods to reduce measurement errors in nonadiabatic holonomic quantum computers is of great importance. However, while much attention has been given to the research on nonadiabatic holonomic gates, the research on reducing measurement errors in nonadiabatic holonomic quantum computers is severely lacking. In this study, we propose a measurement error reduction method tailored for intermediate-scale nonadiabatic holonomic quantum computers. The reason we say this is because our method can not only reduce the measurement errors in the computer but also be useful in mitigating errors originating from nonadiabatic holonomic gates. Given these features,our method significantly advances the construction of accurate intermediate-scale nonadiabatic holonomic quantum computers.

关键词： quantum holonomy quantum computation measurement errors

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