光荣传统映征程——纪念毛泽东题词“全心全意为人民服务”50周年、“艰苦朴素”40周年

1949年和1960年毛泽东先后为西安电子科技大学前身军委工程学校和中国人民解放军军事电信工程学院题写《全心全意为人民服务》和《艰苦朴素》两个题词。西电科大的最前身是1931年毛泽东在瑞金亲自创建的,是一所经历过万里长征的具有光荣革命传统的学校。现今她已经发展成为以信息和电子学科为主、工理文管多学科结合的全国重点大学。     

Rank tests for the k-sample problem with restricted alternatives

An asymptotically maximin most powerful rank test among somewhere asymptotically most powerful linear rank tests with scores generating function cf> is derived for each of the simple order alternative, the simple loop alternative and the simple tree alternative in the k-sample problem. The comparisons of the tests obtained with the rank analogues of the Bartholomew's xv tests are made in terms of local asymptotic relative efficiency. It is found that our tests are better than the rank analogues of the xk tests. Furthermore, the asymptotic equivalence of the ranking by the pooled sample to the ranking in pairs are discuss¬ed and the tests which are asymptotically equivalent to ours are given.     

Isotonic rules for selecting good exponential populations

The problem of selecting exponential populations better than a control under a simple ordering prior is investigated. Based on some prior information, it is appropriate to set lower bounds for the concerned parameters. The information about the lower bounds of the concerned parameters is taken into account to derive isotonic selection rules for the control known case. An isotonic selection rule for the control unknown case is also proposed. A criterion is proposed to evaluate the performance of the selection rules. Simulation comparisons among the performances of several selection rules are carried out. The simulation results indicate that for the control known case, the new proposed selection rules perform better than some earlier existing selection rules.     

A comparison of simple score and latent class approaches: application to HIV knowledge data in Chinese and multi-country contexts

Knowledge about different health-related attitudes, beliefs, and risks is of significant interest to scholars in different Social Science disciplines. Usually knowledge is collected in a form of multiple variables and then constructed as a composite indicator. The question any researcher working with knowledge-related variables faces is: what is the best way to measure and summarise different dimensions of health-related knowledge? The main goal of this paper is to evaluate and compare simple score and latent class approaches to measuring and summarising health-related knowledge using population data on HIV knowledge collected in five selected countries (China, India, Kenya, Malawi, and Ukraine). The advantages and shortcomings of both approaches (simple score and latent class approaches) to measuring and summarising health-related knowledge are evaluated and discussed.     

Understanding the Factors Related to Stepmother Anxiety: A Qualitative Approach

Stepparenting is widely recognized as a stressful experience, with higher levels of stress and anxiety experienced by stepmothers than stepfathers. This study sought to examine the experiences of stepmothers to help understand the perceived factors related to their increased anxiety within the stepfamily. A qualitative study using focus groups was conducted in the United Kingdom. Results suggested that stepmother anxiety is predominantly related to three areas: their relationship with the biological mother, their relationship with their stepchildren, and lack of clarity regarding the stepmother role. It is posited that interventions designed to clarify the stepmother role and improve and strengthen relationships between stepfamily members would help alleviate anxiety and thus improve stepmother well-being.     

Xun Zi Holds That Human Nature Is Simple and Uncarved,Not Evil

For more than two thousand years, the chapter of the Xunzi titled “Man’s Nature Is Evil” has labeled Xun Zi as a representative of the doctrine that human nature is originally evil. In fact, Xun Zi holds to a belief in human nature as originally simple and “uncarved.” The ideas of human nature in that chapter conflict with those in the other chapters including “Discourse on Ritual Principles,” “An Exhortation to Learning,” “Discourse on Nature,” “On the Correct Use of Names” and “Of Honor and Disgrace.” According to these chapters, human nature is not evil, but simple and uncarved; its good or evil is undetermined, it may become either good or evil, etc. Furthermore, we can find other evidence, such as the sayings of Xun Zi’s disciples, the Records of the Grand Historian, the doctrines of human nature in the Western Han dynasty, and so on, for the statement that Xun Zi holds that human nature is simple and uncarved.     

基于加权似然比检验的监控线性曲线的控制图

文章提出了一种基于加权似然比检验的阶段二监控线性曲线的控制图,称为WLRT图,并通过平均运行长度来衡量控制图的性能表现。模拟结果表明,WLRT图对于线性曲线的截距、斜率、标准差的变化及截距和斜率同时变化都具有很好的检测能力。通过与其他几种控制图的性能比较,得出WLRT图能较快地发现过程变化,而且设计简单、操作方便。     

Postulates and paradoxes of relative voting power — A critical re-appraisal

This paper re-evaluates the problem of measuring thea priori relative voting power of a voter in an assembly. We propose several new intuitively compelling postualtes that any reasonable index of voting power ought to satisfy. At the same time we argue that most of the paradoxes of voting power discussed in the literature are paradoxical only in a weak sense, if at all. This leaves three crippling paradoxes — the well-known paradox ofweighted voting, and two new ones presented here: thebloc anddonation paradoxes. We evaluate the four main relative power indices discussed in the literature with respect to these three severe paradoxes. The Shapley-Shubik index is seen to be immune to all three paradoxes, while the Deegan-Packel index is vulnerable to all three. The Banzhaf and the Johnston indices are demonstrably immune to the paradox of weighted voting. However, they are shown to suffer from both the bloc and the donation paradoxes. We argue that this seriously undermines these indices in a hitherto unsuspected way. Several other theoretical issues relating to voting power are discussed.     

Interpenetrating subsampling regression estimation with or without jackknifing

In this paper four regression estimators are considered for a finite population total based on interpenetrating subsamples, two of which are with jackknifing and the other two are without jackknifing. Both theoretical and empirical comparisons of the four proposed estimators are done with respect to bias, variance and mean square error.     

D-optimal Designs for a Combined Simple Linear and Haar-Wavelet Regression Model

A combined simple linear and Haar-wavelet regression model is the combination of a simple linear model and a Haar-wavelet regression model. In this article we show how to construct D-optimal designs for a combined simple linear and Haar-wavelet regression model. An example is also given.