Local influence analysis in the growth curve model with Rao's simple covariance structure

In this paper we discuss the likelihood-based local influence in a growth curve model with Rao's simple covariance structure. Under an abstract perturbation, the Hessian matrix is provided in which the eigenvector corresponding to the maximum absolute eigenvalue is used to assess the influence of observations. Specifically, we employ covariance-weighted perturbation to demonstrate the use of the proposed approach. A practical example is analysed using the proposed local influence approach.     

当代印度南部婆罗门状况的个案分析——以奈保尔《印度:百万叛变的今天》为例

当代印度社会正发生着极大的变动,社会各阶层都在极力维护固有地位和宗教传统的稳定,并极力在这种变动中争取着自身社会利益的最大化。其中,南印度婆罗门种姓在逐步丧失传统的各项特权和优势地位的同时,也在努力适应、应对当代社会的新变化和新挑战。英国作家V.S.奈保尔的《印度:百万叛变的今天》一书提供了较为翔实、客观的口述史资料。以书中生活在孟买、班加罗尔、马德拉斯、加尔各达等南印度城市中的当代婆罗门阶层作为个案,可探究出其面对传统社会生活中的各个层面发生变动时的态度与应对及个体内在的深层原因,并在一定程度上考察社会变动与文化传统之间的互动关系。     

Goal Ambiguity and Organizational Performance in U.S. Federal Agencies

In spite of numerous observations that government organizationshave high levels of organizational goal ambiguity that exertmajor influences on their other characteristics, few researchershave measured goal ambiguity and tested these frequent assertions.In previous research, we developed measures of four dimensionsof goal ambiguity: mission comprehension ambiguity, directivegoal ambiguity, evaluative goal ambiguity, and priority goalambiguity. Confirming hypotheses developed from the literatureon public organizations, the latter three variables showed relationsto such organizational characteristics as organizational age,financial publicness (proportion of funding from governmentallocations), and regulatory status. This article reports asecond analytical step of examining the relations between thegoal ambiguity dimensions and indicators of organizational performancebased on responses to the 2000 National Partnership for ReinventingGovernment Survey of federal employees. The performance variablesincluded managerial effectiveness, customer service orientation,productivity, and work quality. Regression analyses with numerouscontrol variables found that directive, evaluative, and prioritygoal ambiguity related negatively to managerial effectiveness.All four performance indicators showed significant negativerelationships with evaluative goal ambiguity and directive goalambiguity. The results provide further evidence of the viabilityof the new measures of goal ambiguity, support theory-basedbut previously untested hypotheses, and further indicate thefeasibility and value of analyzing goal ambiguity of governmentorganizations.     

论青海三江源环境治理的重要性

三江源是世界上海拔最高、江河最多、湿地面积最大、生物性最为多样性集中的地区之一,但其生态环境恶化,灾害频繁,生态系统脆弱,严重影响了长江、黄河、澜沧江地区的生产生活安全,因此其治理具有重要意义。     

农村基础教育的价值取向:培养新型农民

基于为新农村建设培养新型农民的视角,探讨农村基础教育功能的生成与实现,其主要经历三个阶段.是功能取向的确立、功能行动的展开和功能结果的释放.同时.注视其中存在的问题与应答.     

顾客消费情感对顾客满意感的影响

作者在广州某高校内的餐厅进行了一次实证研究,探讨顾客感觉中的服务质量、顾客情感和顾客满意感之间的关系。数据分析结果表明,顾客感觉中的软质量直接影响顾客餐后的正面情感,而顾客餐后的正面情感直接影响顾客满意感;顾客对软、硬质量的期望与服务实绩之差对顾客餐后的正面情感、顾客满意感都有显著的直接影响,顾客对软质量的期望与服务实绩之差对顾客餐后的负面情感也有显著的直接影响。此外,顾客餐前的情绪也会影响顾客餐后的情感和顾客对自己就餐经历的评估。     

陇山两侧青铜文化研究——青铜时代西北古代民族考古遗存

本文对陇山两侧古代青铜文化如辛店文化、先周文化、商文化等作了研究,并指出它们与古代西北民族的关系.     

黑车子室韦问题重考──以《会昌一品集》与敦煌藏语文书为据

本文主要利用了《会昌一品集》和敦煌藏语文书中的史料,重新考证了黑车子的族源和早期活动地点等问题。作者反复论证了“黑车子出自室韦”学说的不可信,并得出了黑车子早先活动于蒙古高原以北的结论。     

冯雪峰论:“修正主义文艺“批判运动人物检讨(之一)

冯雪峰是“修正主义文艺”批判运动第一阶段（ １９５６～ １９６２）主要的批判对象．作 为唯一的参加过长征的左翼文艺理论家,冯雪峰于１９５７年遭遇清算,除了他那不合时宜的革命 现实主义理论的启蒙倾向,还有一个重要的原因,就是１９世纪３０年代已然形成、长期以来没 能解决的宗派主义从中作祟．     

Survival Convergence and the Preceding Mortality Crossover for Two Population Subgroups

In this paper, we present and develop the argument that if the survival functions for two population subgroups converge in later life, a mortality crossover must precede the occurrence of this convergence. Specifically, two survival curves, S ₁(x) and S ₂(x), associated with two distinct population subgroups, G₁ and G₂, tend to converge before all members die out, as often observed and anticipated. This convergence leads to an increased mortality acceleration for the “advantaged” group, and eventually fosters the occurrence of a mortality crossover. We present a mathematical proof for this relationship and offer several explanations for the mechanisms involved in the process of survival convergence and the preceding mortality crossover. This new presentation demonstrates that mortality crossover is a highly observable demographic event given the trend of survival convergence in later life.