A Proportional Hazards Regression Model for the Subdistribution with Covariates‐adjusted Censoring Weight for Competing Risks Data

With competing risks data, one often needs to assess the treatment and covariate effects on the cumulative incidence function. Fine and Gray proposed a proportional hazards regression model for the subdistribution of a competing risk with the assumption that the censoring distribution and the covariates are independent. Covariate‐dependent censoring sometimes occurs in medical studies. In this paper, we study the proportional hazards regression model for the subdistribution of a competing risk with proper adjustments for covariate‐dependent censoring. We consider a covariate‐adjusted weight function by fitting the Cox model for the censoring distribution and using the predictive probability for each individual. Our simulation study shows that the covariate‐adjusted weight estimator is basically unbiased when the censoring time depends on the covariates, and the covariate‐adjusted weight approach works well for the variance estimator as well. We illustrate our methods with bone marrow transplant data from the Center for International Blood and Marrow Transplant Research. Here, cancer relapse and death in complete remission are two competing risks.     

媒介情境中的播音与主持传播

任何传播行为都是在一定的情境下发生,并和一定的情境形成特殊的互动,本文正是从探讨媒介情境开始,锁定媒介情境中的播音与主持传播,试图从媒介情境与播音与主持传播行为的互动关系入手,探询媒介情境下的播音与主持传播的内在规律,这对于树立播音与主持传播的媒介情境意识和增强播音与主持传播的影响效果都有实际的意义.     

论社会文明建设与社会主义和谐社会构建

构建社会主义和谐社会是中国特色社会主义事业的伟大实践.我们必须加强物质文明建设,为构建社会主义和谐社会奠定经济基础;加强精神文明建设,为构建社会主义和谐社会创造精神动力;加强政治文明建设,为构建社会主义和谐社会保驾护航;加强生态文明建设,为构建社会主义和谐社会提供可持续保证.     

Opportunities for woman-initiated HIV prevention methods among female sex workers in southern China

Rapid changes in China over the past two decades have led to significant problems associated with population migration and changing social attitudes, including a growing sex industry and concurrent increases in STIs and HIV. This article reports results of an exploratory study of microbicide acceptability and readiness and current HIV prevention efforts among female sex workers in two rural and one urban town in Hainan and Guangxi Provinces in southern China. The study focused on these women's knowledge and cultural understandings of options for protecting themselves from exposure to STIs and HIV, and the potential viability and acceptability of woman-initiated prevention methods. We report on ethnographic elicitation interviews conducted with women working within informal sex-work establishments (hotels, massage and beauty parlors, roadside restaurants, boarding houses). We discuss implications of these findings for further promotion of woman-initiated prevention methods such as microbicides and female condoms among female sex workers in China.     

加快长三角城市群发展的战略研究

一、长三角城市群的现状 长三角城市群由苏南、上海和浙东北的16个城市构成,包括上海、南京、苏州、无锡、常州、扬州、南通、泰州、镇江、杭州、嘉兴、宁波、绍兴、舟山、湖州、台州(2003年9月加入),面积10.02万平方公里,约占全国国土面积的1%,人口超过7560万.约占全国总人口的6%.     

制度变迁背景下的社区权力与秩序——基于广州市一个城中村的研究

渐进的市场化和突发的制度变迁导致了城中村的权力格局和社区秩序发生了种种变化,居委会—村公司构成的权力结构及其互动关系目前已经成为城中村特有的"双轨制"权力模式,本文以广州市J社区为例深入分析这种双轨制的内在机制,认为社区内存在两种基于资源依赖基础上的循环链,由此带来了社区秩序的双重规则。     

军队在"罗马化"过程中的作用

罗马军队是传播罗马文明的重要载体,对推动行省和边界地区的罗马化起到了直接或间接的作用。在此过程中,军队需求成为刺激行省地区经济发展和繁荣的一个重要因素,也是行省和蛮族士兵罗马化的一个重要媒介。在城市化运动中,罗马军队发挥了重要作用。     

论充分发挥教学秘书的服务与管理职能

积极努力、主动热情、严谨求实、理解与宽容、牺牲与奉献,是高校教学秘书的基本素质与要求;变被动服务为主动服务,是提高服务质量的重要标志;实施科学管理,是教学秘书的历史使命;学习教育管理理论．是教学秘书提高服务质量的重要保证。     

人工智能时代语言服务行业需求分析与人才培养研究

以126名语言服务从业者及397名学习者为研究对象进行问卷调查和访谈,通过数据分析发现,人工智能时代的语言服务行业对具职业创新能力的复合型人才需求较高,但现有人才培养与市场需求还不能完全对接,学习者对行业需求的认识,以及自身信息技术能力、跨学科语言服务能力等有待提升。提出多渠道语言服务能力培养路径,特别探讨了通过依托项目学习模式,提升学习者职业创新能力,以期培养人工智能时代行业所需的优质语言服务人才。     

由重庆交通史看重庆水运交通发展

回顾重庆交通发展的历史,探讨水运交通在重庆的重要地位．结合当前交通大建设的资金、成本、效益和环境保护等方面的实际需要,强调重庆应当大力发展水运交通,并展望重庆水运交通的发展前景。