《欲望号街车》中的两性冲突及其隐喻性

田纳西·威廉斯的艺术成就使他两次获普利策奖,四次获纽约剧评奖.<欲望号街车>是其著名的代表剧作.该剧的一个重要特点是它的隐喻性,其中布兰琪与斯坦利的两性冲突的隐喻性极具代表性.从社会,历史,心理等几个方面分析剧中两性冲突及其隐喻性,则更能阐释其深刻意蕴,揭示其美学价值.     

Parameter Estimation Algorithms for the Hyper-Gamma Distribution Class

Microcomputer-based algorithms for the estimation of the parameters shift, scale, initial and terminal shape of the hyper–Gamma distribution class are presented. They are based on the moment equations and on the logarithmic likelihood function (LLF) associated with the hyper-Gamma density. The maximum–likelihood approach is implemented by means of the derivative equations resulting from the LLF and, independently, by means of direct optimization of the LLF. Program options include estimation of (i) four parameters, (ii) three parameters (shift known), and (iii) two parameters (shift known, initial shape zero). A program diskette with user's guide will be made available upon request.     

公平关切及低碳视角下供应链两部定价契约问题研究

低碳环境下,碳排放权作为一种有价值、可交易的稀缺性资源,已彻底颠覆了传统企业的竞争法则、成本构成及盈利模式,被视为低碳时代供应链契约优化与协调的主要对象。文章利用博弈论等相关知识,考虑公平关切及低碳视角下,由一个制造商和一个零售商组成的供应链,分别讨论了当零售商不具有公平偏好及具有公平偏好时,面对有利和不利不公平分配的制造商向零售商提供两部定价契约能否达成协调？以及达成协调时的供应链契约协调参数设置等问题。研究结果表明,只有在制造商和零售商都具有公平偏好,且在竞争型供应链渠道下,当制造商面对不利不公平分配的单位负效用大于某一临界值时,供应链两部定价契约不能达成协调。     

王维“诗中有画”的模式

通过文献分析与比较论证,分析王维以“诗中有画”形成诗与画的相互交流模式问题。研究认为,王维山水诗有继承南朝与前盛唐传统的一面,更多的是诗与画交流后的创新;王维山水诗中“二维空间叠合”,借助了山水画空间表现的形式;除了山水画的平远外,深远也见于诗中,以及暗示空间的“外”,形成了简洁精约的模式;诗与画中动静、颜色与拟人化的表现,带有颇具个性的模式化的特征,具有经典性。     

Likelihood Ratio Tests for Dependent Data with Applications to Longitudinal and Functional Data Analysis

This paper introduces a general framework for testing hypotheses about the structure of the mean function of complex functional processes. Important particular cases of the proposed framework are as follows: (1) testing the null hypothesis that the mean of a functional process is parametric against a general alternative modelled by penalized splines; and (2) testing the null hypothesis that the means of two possibly correlated functional processes are equal or differ by only a simple parametric function. A global pseudo‐likelihood ratio test is proposed, and its asymptotic distribution is derived. The size and power properties of the test are confirmed in realistic simulation scenarios. Finite‐sample power results indicate that the proposed test is much more powerful than competing alternatives. Methods are applied to testing the equality between the means of normalized δ‐power of sleep electroencephalograms of subjects with sleep‐disordered breathing and matched controls.     

Control of type 1 error in a hybrid complete two‐period vaccine efficacy trial

A complete two‐period experimental design has been defined as one in which subjects are randomized to treatment, observed for the occurrence of an event of interest, re‐randomized, and observed again for the event in a second period. A 4‐year vaccine efficacy trial was planned to compare a high‐dose vaccine with a standard dose vaccine. Subjects would be randomized each year, and subjects who had participated in a previous year would be allowed to re‐enroll in a subsequent year and would be re‐randomized. A question of interest is whether positive correlation between observations on subjects who re‐enrolled would inflate the variance of test statistics. The effect of re‐enrollment and correlation on type 1 error in a 4‐year trial is investigated by simulation. As conducted, the trial met its power requirements after two years. Subjects therefore included some who participated for a single year and others who participated in both years. Those who participated in both years constituted a complete two‐period design. An algebraic expression for the variance of the treatment difference in a complete two‐period design is derived. It is shown that under a ‘no difference’ null, correlation does not result in variance inflation in this design. When there is a treatment difference, there is variance inflation but it is small. In the vaccine efficacy trial, the effect of correlation on the statistical inference was negligible. Copyright © 2014 John Wiley & Sons, Ltd.     

慎思笃行科学理性-“关于两种社会制度对比问题”与当代大学生的对话

在质疑的时代,国民价值观的建设异常必要。文章用对话的方式,从“社会主义制度与资本主义制度相比,究竟谁更好？”问题的回答入手,就大学生社会主义核心价值观建设问题进行了较为系统的思考与分析。     

对大学生综合素质测评的几点思考

大学生综合素质测评作为高校对学生的评价制度,它有利于促进素质教育发展,提高大学生综合素质,但是关键在于建立一套比较具有科学性、可操作性、时代性,开放性的测评体系。在进行大学生综合素质测评过程中必须做到测评工作严肃、透明、客观。     

Non‐Parametric Change‐Point Tests for Long‐Range Dependent Data

Abstract. We propose a non‐parametric change‐point test for long‐range dependent data, which is based on the Wilcoxon two‐sample test. We derive the asymptotic distribution of the test statistic under the null hypothesis that no change occurred. In a simulation study, we compare the power of our test with the power of a test which is based on differences of means. The results of the simulation study show that in the case of Gaussian data, our test has only slightly smaller power minus.3pt than the ‘difference‐of‐means’ test. For heavy‐tailed data, our test outperforms the ‘difference‐of‐means’ test.     

Statistical inference for multivariate partially linear regression models

In this paper we study a class of multivariate partially linear regression models. Various estimators for the parametric component and the nonparametric component are constructed and their asymptotic normality established. In particular, we propose an estimator of the contemporaneous correlation among the multiple responses and develop a test for detecting the existence of such contemporaneous correlation without using any nonparametric estimation. The performance of the proposed estimators and test is evaluated through some simulation studies and an analysis of a real data set is used to illustrate the developed methodology. The Canadian Journal of Statistics 41: 1–22; 2013 © 2013 Statistical Society of Canada