检索结果-南通市图书馆

Categories and Weak Equivalences of Graded Algebras

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Algebra Colloquium 2019年第4期26卷 643-664页

作者： Alexey Gordienko Ofir Schnabel james zhang Department of Higher Mathematics Moscow State Technical University of Civil Aviation Kronshtadtsky Boulevardd.20125993 MoscowRussia Department of Mathematics ORT Braude College2161002 KarmiclIsrael 不详

In the study of the structure of graded algebras(such as graded ideals,graded subspaces,and radicals)or graded polynomial identities,the grading group can be replaced by any other group that realizes the same *** we come to the notion of weak equivalence of gradings:two gradings are weakly equivalent if there exists an isomorphism between the graded algebras that maps each graded component onto a graded *** group grading on an algebra can be weakly equivalent to G-gradings for many different groups G;however,it turns out that there is one distinguished group among them,called the universal group of the *** this paper we study categories and functors related to the notion of weak equivalence of *** particular,we introduce an oplax 2-functor that assigns to each grading its support,and show that the universal grading group functor has neither left nor right adjoint.

关键词： algebra grading adjoint functor oplax 2-functor (co)limit

效益·风险·策略:中国资本域外并购足球俱乐部思考

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

体育与科学 2019年第5期40卷 107-112页

作者：张琴 james J zhang 安徽工程大学体育学院美国佐治亚大学体育学院

基于文献梳理和专家访谈,探讨中国资本域外并购足球俱乐部的真实目的、风险种类、策略选择,旨在厘清风险予以应对。在现有的案例中,中国资本域外并购足球俱乐部均属于跨行业并购,其必须应对传统并购风险、跨界并购风险、足球领域的特殊... 详细信息

基于文献梳理和专家访谈,探讨中国资本域外并购足球俱乐部的真实目的、风险种类、策略选择,旨在厘清风险予以应对。在现有的案例中,中国资本域外并购足球俱乐部均属于跨行业并购,其必须应对传统并购风险、跨界并购风险、足球领域的特殊风险,在如此重压之下,中国企业的真实目的难免遭人质疑。如果中国资本基于热爱足球,则无可非议;如果中国资本企图通过并购域外足球俱乐部来赚钱,短期内无法实现;如果中国资本意在借助域外足球俱乐部的影响力,将自己的品牌推向世界,虽是理性选择,但收益尚待观察。毋庸置疑,中国资本并购域外足球俱乐部是我国企业国际化进程的组成部分,这一战略体现着国家要求、资本需求、民众诉求,政府部门需立足于监督与保护,严控风险、严管投资、严格执法;市场主体应立足于真爱足球,着眼于文化兼容、多元共治、技术第一,化解足球本身风险和一般并购风险,实现资本与足球共舞、品牌与载体齐飞。

关键词：体育管理体育治理中国资本并购足球俱乐部

Complexity of drug therapy and its implications for quality of diabetes care

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of Diabetes 2011年第7期2卷 105-107页

作者： james X zhang Center for Comparative Effectiveness Research The Lewin GroupFalls ChurchVA 23298United States

Diabetes is a leading cause of mortality,morbidity and disability around the *** the past two decades,diabetes care has grown more complex as patients have received multi-component *** studies have illumined the complexity of drug therapy in patients with diabetes.A high level of drug utilization in diabetes patients has serious implications for quality of care,in terms of coordination of care,drug safety and access to ***,researchers,payers and policy makers should be aware of these implications and incorporate the complexity of diabetes care into practice guidelines,benefit design and policy formulation to improve the quality of care.

关键词： Complexity Drug therapy Quality of care

Neuroprotective mechanisms and translational potential of therapeutic hypothermia in the treatment of ischemic stroke

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2017年第3期12卷 341-350页

作者： Jin Hwan Lee james zhang Shan Ping Yu Department of Anesthesiology Emory University School of MedicineAtlantaGAUSA Veteran's Affair Medical Center Center for Visual and Neurocognitive RehabilitationAtlantaGAUSA

Stroke is a leading cause of disability and death,yet effective treatments for acute stroke has been very *** far,tissue plasminogen activator has been the only FDA-approved drug for thrombolytic treatment of ischemic stroke patients,yet its application is only applicable to less than 4–5% of stroke patients due to the narrow therapeutic window（〈 4.5 hours after the onset of stroke） and the high risk of hemorrhagic *** evidence from basic and clinical studies has shown that therapeutic hypothermia,also known as targeted temperature management,can be a promising therapy for patients with different types of ***,the success in animal models using pharmacologically induced hypothermia（PIH） has gained increasing momentum for clinical translation of hypothermic *** review provides an updated overview of the mechanisms and protective effects of therapeutic hypothermia,as well as the recent development and findings behind PIH *** is expected that a safe and effective hypothermic therapy has a high translational potential for clinical treatment of patients with stroke and other CNS injuries.

关键词： stroke therapeutic hypothermia drug-induced hypothermia ischemia cell death inflammation

Changes in source contributions to the oxidative potential of PM_(2.5)in urban Xiamen,China

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2025年第3期149卷 342-357页

作者： Jia-Min Li Si-Min Zhao Qi-Yu Miao Shui-Ping Wu Jie zhang james J.Schwab Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies Xiamen UniversityXiamen 361102China Center for Marine Environmental Chemistry and Toxicology College of Environment and EcologyXiamen UniversityXiamen 361102China Atmospheric Sciences Research Center University at AlbanySUNYAlbany 12226USA

The toxicity of PM_(2.5)does not necessarily change synchronously with its mass *** this study,the chemical composition(carbonaceous species,water-soluble ions,and metals)and oxidative potential(dithiothreitol assay,DTT)of PM_(2.5)were investigated in 2017/2018 and 2022 in Xiamen,*** decrease rate of volume-normalized DTT(DTTv)(38%)was lower than that of PM_(2.5)(55%)between the two sampling ***,the mass-normalized DTT(DTTm)increased by 44%.Clear seasonal patterns with higher levels in winter were found for PM_(2.5),most chemical constituents and DTTv but not for *** large decrease in DTT activity(84%−92%)after the addition of EDTA suggested that watersoluble metals were the main contributors to DTT in *** increased gap between the reconstructed and measured DTTv and the stronger correlations between the reconstructed/measured DTT ratio and carbonaceous species in 2022were *** decrease rates of the hazard index(32.5%)and lifetime cancer risk(9.1%)differed from those of PM_(2.5)and DTTv due to their different main *** PMF-MLR model showed that the contributions(nmol/(min·m^(3)))of vehicle emission,coal+biomass burning,ship emission and secondary aerosol to DTTv in 2022 decreased by 63.0%,65.2%,66.5%,and 22.2%,respectively,compared to those in 2017/2018,which was consistent with the emission reduction of vehicle exhaust and coal consumption,the adoption of low-sulfur fuel oil used on board ships and the reduced production of ***,the contributions of dust+sea salt and industrial emission increased.

关键词： Chemical composition Oxidative potential Interannual change PMF-MLR Source apportionment

体育管理研究与理论构建、检验中的核心问题——体育管理学研究设计、测量和分析系列

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

上海体育学院学报 2016年第1期40卷 4-11页

作者： james J.zhang james W.Du Jerry J.Wang 张轶美国佐治亚大学国际体育管理研究中心佐治亚州雅典30602 美国天普大学福克斯商学院宾夕法尼亚州费城19122 上海大学体育学院上海200444

为引导青年学者开展高水平体育管理研究,本系列论文(由6篇文章组成,未来2年内陆续向读者呈现)旨在阐明中高级科学研究理念、研究流程、设计应用、测量方法、数据分析,及它们的集成性和在体育管理理论检验与发展中的功能。首篇将综述体... 详细信息

为引导青年学者开展高水平体育管理研究,本系列论文(由6篇文章组成,未来2年内陆续向读者呈现)旨在阐明中高级科学研究理念、研究流程、设计应用、测量方法、数据分析,及它们的集成性和在体育管理理论检验与发展中的功能。首篇将综述体育产业发展的背景信息,指出日益增长的科学研究需求和激烈的学术竞争环境,并讨论在体育管理研究与理论构建、检验中的核心问题。最后,揭示系列拣选内容所遵循的基本逻辑。

关键词：体育管理科学研究理论框架测量评价市场分析设计

在线全文

学校读者我要写书评

暂无评论

相关性分析在体育管理研究中的应用

上海体育学院学报 2016年第3期40卷 1-9,39页

作者： Jerry J.Wang james J.zhang james W.Du 张轶美国佐治亚大学国际体育管理研究中心佐治亚州雅典30602 美国天普大学福克斯商学院宾夕法尼亚州费城19122 上海大学体育学院上海200444

采用文献资料和案例分析法,对基础相关性分析和回归分析在体育管理研究中的应用进行研究。基于相互依赖型和依存型2种关系的阐述,结合体育管理实证研究案例,讨论了在研究设计和分析过程中涉及的研究目标、定义、潜在机制以及关键实证假... 详细信息

采用文献资料和案例分析法,对基础相关性分析和回归分析在体育管理研究中的应用进行研究。基于相互依赖型和依存型2种关系的阐述,结合体育管理实证研究案例,讨论了在研究设计和分析过程中涉及的研究目标、定义、潜在机制以及关键实证假设等问题,并重点介绍依赖型分析方法(如双变量相关、简单线性回归、多元线性回归、多项式回归、逻辑回归、判别函数分析)。

关键词：体育管理相关性分析回归分析

体育管理心理研究中的结构测量:经典测量理论

在线全文

学校读者我要写书评

暂无评论

上海体育学院学报 2018年第1期42卷 47-55页

作者：毛伦华安俊英 james J.zhang 新墨西哥大学健康运动科学系美国新墨西哥州阿尔伯克基87131 上海体育学院经济管理学院上海200438 佐治亚大学国际体育管理研究中心美国佐治亚州雅典30602

在对经典测量理论进行综述的基础上,梳理各种效度和信度测量理论的特点及其相互关系。基于结构的定义和来源,提出体育管理心理量表开发的五步框架:(1)在法则网络(nomological network)中定义结构;(2)定义内容域和初始条目池的生成;(3)... 详细信息

在对经典测量理论进行综述的基础上,梳理各种效度和信度测量理论的特点及其相互关系。基于结构的定义和来源,提出体育管理心理量表开发的五步框架:(1)在法则网络(nomological network)中定义结构;(2)定义内容域和初始条目池的生成;(3)条目的精炼;(4)因子结构和心理特质;(5)因子确认和理论效度。

关键词：体育管理心理结构测量量表开发

Risk factors for cost-related medication non-adherence among older patients with diabetes

在线全文

学校读者我要写书评

暂无评论

World Journal of Diabetes 2014年第6期5卷 945-950页

作者： james X zhang Jhee U Lee David O Meltzer Section of Hospital Medicine Department of Medicinethe University of ChicagoChicago Department of Economics the University of ChicagoChicago Harris School of Public Policy the University of ChicagoChicago

AIM: To assess the risk factors for cost-related medication non-adherence(CRN) among older patients with diabetes in the United States. METHODS: We used data from the 2010 Health and Retirement Study to assess risk factors for CRN including age, drug insurance coverage, nursing home residence, functional limitations, and frequency of hospitalization. CRN was self-reported. We conducted multivariate regression analysis to assess the effect of each risk factor. RESULTS: Eight hundred and seventy-five(18%) of 4880 diabetes patients reported CRN. Age less than 65 years, lack of drug insurance coverage, and frequent hospitalization significantly increased risk for CRN. Limitation in both activities of daily living and instrumental activities of daily living were also generally associated with increased risk of CRN. Residence in a nursing home and Medicaid coverage significantly reduced ***: These results suggest that expandingprescription coverage to uninsured, sicker, and community-dwelling individuals is likely to produce the largest decreases in CRN.

关键词： Cost Medication Non-adherence Risk factors