当代大学生价值观的调查与研究

笔者认为,大学生在各个方面的价值取向受其所处的社会环境的客观影响,高校应加强对大学生进行邓小平理论和江泽民同志提出的“三个代表”的教育,帮助他们树立正确的人生观和价值观。     

Marginal Means/Rates Models for Multiple Type Recurrent Event Data

Recurrent events are frequently observed in biomedical studies, and often more than one type of event is of interest. Follow-up time may be censored due to loss to follow-up or administrative censoring. We propose a class of semi-parametric marginal means/rates models, with a general relative risk form, for assessing the effect of covariates on the censored event processes of interest. We formulate estimating equations for the model parameters, and examine asymptotic properties of the parameter estimators. Finite sample properties of the regression coefficients are examined through simulations. The proposed methods are applied to a retrospective cohort study of risk factors for preschool asthma.     

Comparisons of Test Statistics Arising from Marginal Analyses of Multivariate Survival Data

We investigate the properties of several statistical tests for comparing treatment groups with respect to multivariate survival data, based on the marginal analysis approach introduced by Wei, Lin and Weissfeld [Regression Analysis of multivariate incomplete failure time data by modelling marginal distributians, JASA vol. 84 pp. 1065–1073]. We consider two types of directional tests, based on a constrained maximization and on linear combinations of the unconstrained maximizer of the working likelihood function, and the omnibus test arising from the same working likelihood. The directional tests are members of a larger class of tests, from which an asymptotically optimal test can be found. We compare the asymptotic powers of the tests under general contiguous alternatives for a variety of settings, and also consider the choice of the number of survival times to include in the multivariate outcome. We illustrate the results with simulations and with the results from a clinical trial examining recurring opportunistic infections in persons with HIV.     

关于少数民族县(市)人才资源开发的思考

以恩施自治州部分县市为例分析少数民族山区县市人才资源开发的现状,以及人才匮乏的成因;并就少数民族县市如何开发人才资源作了一些探索性的思考,认为各部门要按照"科技兴国"的战略部署,树立正确观念,加快制定和完善育才、用才、引才、留才的长远规划及政策,营造一个有利于科技创新、人才创业的良好环境和机制。     

大学生“自我”迷失现状剖析与引导

"自我"概念存在着"主体自我"与"客体自我"、"现实自我"与"理想自我"的冲突,不能妥善解决有可能导致"自我"迷失现象.大学生"自我"迷失现状既存在着不尊重爱惜生命、自毁或攻击他人危害社会的极端案例,但更多的是存在着自卑、孤独、焦虑、抑郁、厌学等一般情况.大学生"自我"冲突的原因在于"自我实现"受干扰,遏障碍与被积极关注的缺失.对策在于要帮助大学生认识自我,建立自我一致性;发现自我,秉持特立独行;发展自我,满足关注需要;完善自我,实现和谐统一.     

我国知识贫困的现状及其根源研究

在以知识创新为特点的新世纪,知识因素成为经济增长和社会进步中最重要的因素和贫 困的根源。作为发展中国家,我国在追逐知识发展这一"移动目标"的过程中,知识贫困现象愈显严重。 本文对我国知识贫困方面的现状及导致我国贫困现状的根源进行了较全面的分析研究。     

西部教育发展的现状与对策研究

西部教育事业发展在全国处于比较落后的水平上。西部应加快实施素质教育,建立适应培育创造型人才的教育体制,重视提高少数民族适龄儿童的入学率、巩固率,提高教育教学质量,大力发展职业教育,加快教育信息化建设,给予特殊政策扶持,推进高等教育快速发展,使之适应新的国际环境。     

黎族历史上刻木记事习俗浅析

本文通过对现存的海南岛五指山区黎族“刻木记事”实物和有关民族学文献资料的分析 ,比较全面地探讨了黎族社会中现在业已消失了的“刻木记事”习俗及其文化内涵。     

透视公文体式写作研究之现状

公文体式写作研究阐述最简易的类型是浅显知识介绍,通常以"怎样写**"的模式出现。这只能算是一种启蒙教育。公文体式写作研究阐述最普遍、流行时间最长的类型要数"格式说明+例文"的简易模式。这种模式比起浅显知识介绍型来,有所进步,但非常有限。问题主要在于运用这种模式过于简单,过于粗疏,在例文的引用列举上尤其如此。这表现在一个公文体式只举一篇例文,而且没有分析说明;一个公文体式举有多篇例文,但同样没有分析说明;错用例文而产生误导;错用病文作范文而产生误导;推荐病文作范文而加深误导等。公文体式写作研究逡巡不前的原因之一是人们至今仍普遍认为公文写作只是一种简易、机械的技术操作,所谓的公文写作学是不存在的;原因之二是公文写作研究人员的队伍尚不精锐有力,特别是缺乏能真正统领大军冲锋陷阵的将领和统帅。(打破这种现状的)突破口是群策群力,及早编创一部能极有效地指导公文写作实践的新经典《现代"尚书"》来。     

A joint modelling approach for clustered recurrent events and death events

In dental implant research studies, events such as implant complications including pain or infection may be observed recurrently before failure events, i.e. the death of implants. It is natural to assume that recurrent events and failure events are correlated to each other, since they happen on the same implant (subject) and complication times have strong effects on the implant survival time. On the other hand, each patient may have more than one implant. Therefore these recurrent events or failure events are clustered since implant complication times or failure times within the same patient (cluster) are likely to be correlated. The overall implant survival times and recurrent complication times are both interesting to us. In this paper, a joint modelling approach is proposed for modelling complication events and dental implant survival times simultaneously. The proposed method uses a frailty process to model the correlation within cluster and the correlation within subjects. We use Bayesian methods to obtain estimates of the parameters. Performance of the joint models are shown via simulation studies and data analysis.