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931.
In this paper, multivariate two-sample testing problems were examined based on the Jure?ková–Kalina's ranks of distances. The multivariate two-sample rank test based on the modified Baumgartner statistic for the two-sided alternative was proposed. The proposed statistic was a randomized statistic. Simulations were used to investigate the power of the suggested statistic for various population distributions.  相似文献   
932.
The odds ratio (OR) is a measure of association used for analysing an I × J contingency table. The total number of ORs to check grows with I and J. Several statistical methods have been developed for summarising them. These methods begin from two different starting points, the I × J contingency table and the two‐way table composed by the ORs. In this paper we focus our attention on the relationship between these methods and point out that, for an exhaustive analysis of association through log ORs, it is necessary to consider all the outcomes of these methods. We also introduce some new methodological and graphical features. In order to illustrate previously used methodologies, we consider a data table of the cross‐classification of the colour of eyes and hair of 5387 children from Scotland. We point out how, through the log OR analysis, it is possible to extract useful information about the association between variables.  相似文献   
933.
Bernstein polynomials have many interesting properties. In statistics, they were mainly used to estimate density functions and regression relationships. The main objective of this paper is to promote further use of Bernstein polynomials in statistics. This includes (1) providing a high-level approximation of the moments of a continuous function g(X) of a random variable X, and (2) proving Jensen’s inequality concerning a convex function without requiring second differentiability of the function. The approximation in (1) is demonstrated to be quite superior to the delta method, which is used to approximate the variance of g(X) with the added assumption of differentiability of the function. Two numerical examples are given to illustrate the application of the proposed methodology in (1).  相似文献   
934.
Adoption is unanimously considered a lifelong process, but adulthood and parenthood are life cycle stages that up to now have been explored only marginally. The principal aim of the present study is twofold: first, to analyze whether and how parenthood might lead the adoptee and his/her partner to reinterpret the adoption history and, second, to verify whether the attitudes of the two partners concerning adoption are similar or complementary. Thirty-four couples consisting of one adopted and one non-adopted partner, now parents, were interviewed and a graphic instrument, the Double Moon Test, was administered. Results revealed that most couples showed a shared attitude in valorizing both the origin background and the adoptive family. However, in a number of cases a divergent position emerged, highlighting the crucial role of the non-adopted partner in encouraging the adoptee to revisit his/her adoption history. Overall, the practical relevance of the research findings is discussed and future direction of research are suggested.  相似文献   
935.
The young British-born Vietnamese are a relatively invisible group in ‘super-diverse’ London who are often misidentified in their everyday encounters. Eluding more straightforward processes of ethnic or racial assignment, the young Vietnamese ‘pass’ in various different ways as Chinese, Japanese, Korean, Thai or ‘Oriental’. Drawing upon primary interview data and participant observation, this article traces ‘passive’ and ‘deliberate’ forms of passing to highlight how intersecting processes of class, gender and place enable/engender different kinds of passing. It is argued that Vietnamese-passing challenges more ‘celebratory’ readings of (super-) diversity by concealing (and depoliticising) difference and erasing Vietnamese voices rather than allowing for their proliferation. It is suggested that practices of passing may become more common in super-diverse societies, as markers of visible difference become increasingly complex and less determinable, especially among newer, non-colonial migrant groups who are more ambiguously positioned within existing identity regimes.  相似文献   
936.
Exploring intergenerational themes in children’s literature, this article shares the perspective of one grandfather and the reactions of educators in response to stories of young and old. Four themes found within intergenerational children’s literature are identified: (a) perceptions of grandparents’ interests and personalities, (b) passing down of knowledge, (c) shared moments/adventures, and (d) perceptions of aging. Intended as a reference point for educators as they select books depicting intergenerational themes, a question asked is, What is at the heart of the matter when it comes to children’s literature depicting themes of young and old?  相似文献   
937.
In this article three unit root tests that allow for a break in both the seasonal mean and linear trend of the data are proposed. The tests, which can be seen as small-sample corrected versions of already known asymptotic tests, are shown to perform very well in simulations, and much better than their asymptotic counterparts.  相似文献   
938.
We consider a retailer’s decision of whether to develop an internally produced, private label version of a national brand and the role that this decision plays in coordinating the supply chain. Our model assumes that the perceived quality of the private label is lower than that of the national brand, and we allow for the two products to have different marginal costs. We further allow for a fixed development cost that the retailer must incur to develop private label capability, and distinguish two types of private labels depending upon whether they would or would not be developed as product line extensions by a vertically integrated supply chain. We refer to these two types as first‐best (FB) and non‐first‐best (NFB) product line extensions, respectively. When the private label can be characterized as a NFB product line extension, its development creates adverse cannibalization effects, yet it also helps to mitigate the effects of double marginalization with respect to the national brand. We characterize the conditions under which the retailer will develop private label capability, and distinguish among the conditions under which this is either beneficial or detrimental to the overall performance of the supply chain.  相似文献   
939.
国外关于企业社会责任的理论评介   总被引:9,自引:0,他引:9  
通过对近年来国外学者关于企业社会责任理论文献的回顾,将国外有关其起源,内涵和表现的理论做一个综合的介绍,并回顾了其两个基本“流派”或两方面观点的争论,通过对这两个流派基本观点的阐述指出他们的观点是根本对立的,不过近年来这两个流派的观点也出现了融合的趋势。  相似文献   
940.
聂付生 《兰州学刊》2005,3(3):264-267
冯梦龙的情教思想以情本为逻辑起点,视情为万物生成之本;在此框架内,冯梦龙仔细分析了情本的内核,即情感、情欲、人本思想等,这是情本论的逻辑发展;最后以情教为旨归,与宋明理学殊途同归,构筑一个完整、系统的情教体系.  相似文献   
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