政治文明-中国古代北方草原文化的重要内涵

研究表明,中国古代北方草原游牧民族进入文明时代的时间较以前认定的时间提前了整整一代人.按照建立政权后控制区域大小并适当考虑历史发展先后的原则审视其中有代表性民族的政治文明内涵及形成过程,许多体制、组织机构设置和管理方式,都为我们今天促进民族团结,建设现代政治文明和现代化,建设社会主义和谐社会提供了可兹参考和借鉴的重要经验.     

试探基层宣传思想工作网络建设

文章结合北仑新区工作实践 ,从三个方面探讨了在基层如何进行宣传思想工作网络建设的问题     

发展"第三部门"与构建和谐社会

第三部门有两个显著特点:一是它不以赢利为目的;二是它既非政府部门,又非企业部门,而是介于两者之间、弥补两者功能不足的一种社会组织。从总体上看,我国的第三部门分为两类。第三部门应该有一个的大发展,才能使我们的社会成员普遍享受到经济发展的成果,才能使社会更加和谐健康发展。要促进社区公共服务组织的繁荣,充分发挥志愿者组织及志愿者的积极作用,注意发挥慈善机构的作用,创新公益型组织服务社会的方式方法。     

关于用人单位劳动规章制度的立法思考

用人单位劳动规章制度是用人单位组织社会化劳动所必需的制度,我国目前关于这方面的立法甚少,在实践中引发了诸多问题。对此,应当借鉴其他国家和地区的相关立法经验,完善劳动规章制度立法,规范用人单位劳动规章制度的内容和制定程序。     

水轮发电机组计算机监控实时仿真系统的实现

提出了一种水轮发电机组计算机监控实时仿真系统构建方案。通过对水轮发电机组及其辅助设备进行数字仿真,再结合监控层的应用软件及硬件,构成混合仿真系统,实现了计算机监控系统对水轮发电机组一系列动态过程监控的实时仿真。     

英语中的词汇教学

遵循英语词汇的教学原则,分析英语词汇的重要性以及教学中存在的一些问题;针对问题提出具体的教学方法。     

Estimation of mean and variance of stigmatized quantitative variable using distinct units in randomized response sampling

Received: April 6, 1998; revised version: July 12, 1999     

关于基层民主法治建设状况的调研及相关问题的思考

在我国加强民主与法治建设的宏观状况下,基层在这方面也呈现出日益发展的态势,但由于诸多方面的限制,问题依然存在。文章通过对所在区域的实践调研,分析现今基层民主与法治建设取得的成绩和存在的问题,从而寻求其发展的路径。     

Estimating numbers of infectious units from serial dilution assays

Summary.  The paper concerns the design and analysis of serial dilution assays to estimate the infectivity of a sample of tissue when it is assumed that the sample contains a finite number of indivisible infectious units such that a subsample will be infectious if it contains one or more of these units. The aim of the study is to estimate the number of infectious units in the original sample. The standard approach to the analysis of data from such a study is based on the assumption of independence of aliquots both at the same dilution level and at different dilution levels, so that the numbers of infectious units in the aliquots follow independent Poisson distributions. An alternative approach is based on calculation of the expected value of the total number of samples tested that are not infectious. We derive the likelihood for the data on the basis of the discrete number of infectious units, enabling calculation of the maximum likelihood estimate and likelihood-based confidence intervals. We use the exact probabilities that are obtained to compare the maximum likelihood estimate with those given by the other methods in terms of bias and standard error and to compare the coverage of the confidence intervals. We show that the methods have very similar properties and conclude that for practical use the method that is based on the Poisson assumption is to be recommended, since it can be implemented by using standard statistical software. Finally we consider the design of serial dilution assays, concluding that it is important that neither the dilution factor nor the number of samples that remain untested should be too large.     

Estimation of parameters of 1-out-of-2:g repairable system

Moment estimators of l-out-of-2:G repairable system are supplied under four sampling schemes assuming that the failure and repair time distribution of the units are exponential with unknown parameters λ, μ respectively. Information metrices of the estimators are supplied. Also it is shown that the estimators are asymptotically normally distributed in every sampling scheme.