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1.
We consider samples drawn without replacement from finite populations. We establish optimal lower non-negative and upper non-positive bounds on the expectations of linear combinations of order statistics centered about the population mean in units generated by the population central absolute moments of various orders. We also specify the general results for important examples of sample extremes, Gini mean differences and sample range. The paper completes the results of Papadatos and Rychlik [2004. Bounds on expectations of L-statistics from without replacement samples. J. Statist. Plann. Inference 124, 317–336], where sharp negative lower and positive upper bounds on the expectations of the combinations were presented for the without-replacement samples.  相似文献   
2.
The aims of the study were (a) to identify predictors of body esteem and (b) to expand on previous research by examining the link between global self-esteem and body esteem in a community-based sample of women in midlife. We found that body esteem in midlife women was predicted by body mass index (BMI), optimism, self-esteem, and menopausal symptoms. Although BMI was the main predictor of body esteem in middle-aged women, global self-esteem was more strongly related to feelings about appearance and physical condition than feelings about body size.  相似文献   
3.
Comparisons of international child welfare systems have identified two basic orientations to practice; a ‘child protection’ orientation and a ‘child welfare’ orientation, which are founded upon fundamentally different values and assumptions regarding the family, the origins of childcare problems, and the proper role of the state in relation to the family. This paper describes a project which sought to compare how undergraduate social work students from three European Universities perceive risk in referrals about the welfare of children and to explore the impact of different cultural, ideological and educational contexts on the way in which risk is constructed by students. Students from Northern Ireland, Germany and Poland examined three vignettes via 10 online discussion fora each of which provided a narrative summary of their discussion. The paper presents some findings from the analysis of the qualitative data emerging from the student discussions and draws out the lessons learned in terms of how the project was designed and implemented using online discussion fora.  相似文献   
4.
The aim of my paper is to discuss the phenomenon of nostalgia for socialism in rural Poland. More precisely, I discuss how experiences of rurality and diverse religious beliefs intertwine with nostalgia. Depicting the memories of socialism, shared with me by the inhabitants of a multi-religious rural commune in Southern Poland, I aim to demonstrate the ways in which day-to-day experiences of rural life as well as religious diversity contribute to shaping people's remembrances. In order to do so, I describe both the present situation and the historical experiences of the inhabitants of the commune. I introduce representatives of different Christian communities – Roman Catholics, Greek Catholics, Orthodox and Pentecostals – and, by presenting their life stories, I address the issue of how villagers' religious creeds interrelate with the memories and (re)evaluation of the socialist past. My aim here is twofold. Firstly I aim to deconstruct the nostalgia for socialism, showing its complexity and proving that this nostalgia means in fact longing for very concrete experiences of rural life. Secondly, I argue that the study of various religious beliefs and practices is very important for a fuller interpretation of nostalgic discourses and responses to postsocialist transformations.  相似文献   
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Many studies have demonstrated that smell is an important sense in social interactions, and recently it was determined that olfactory cues might also convey information concerning certain personality traits. The present study investigated whether personality traits might be recognized using olfactory cues in contexts other than male–female interactions. 75 children (35 girls and 40 boys, M = 8.29 years) and 75 young adults (41 women and 34 men, M = 20.5 years) rated the personality traits of 50 unknown individuals (24 women and 26 men, M = 24.02 years) based on their body odor. The correlations between scent ratings and the self-assessed personality dimensions of odor donors were analyzed. The results show that both children and adults assess neuroticism relatively accurately, whereas only adults recognized dominance. These results suggest that olfaction supplements visual and auditory cues throughout our whole lives, contributing to the first impression accuracy of certain personality traits.  相似文献   
7.
The article closely examines the role of mechanistic effect models (e.g., population models) in the European environmental risk assessment (ERA) of pesticides. We studied perspectives of three stakeholder groups on population modeling in ERA of pesticides. Forty‐three in‐depth, semi‐structured interviews were conducted with stakeholders from regulatory authorities, industry, and academia all over Europe. The key informant approach was employed in recruiting our participants. They were first identified as key stakeholders in the field and then sampled by means of a purposive sampling, where each stakeholder identified as important by others was interviewed and asked to suggest another potential participant for our study. Our results show that participants, although having different institutional backgrounds often presented similar perspectives and concerns about modeling. Analysis of repeating ideas and keywords revealed that all stakeholders had very high and often contradicting expectations from models. Still, all three groups expected effect models to become integrated in future ERA of pesticides. Main hopes associated with effect models were to reduce the amount of expensive and complex testing and field monitoring, both at the product development stage, and as an aid to develop mitigation measures. Our analysis suggests that, although the needs of stakeholders often overlapped, subtle differences and lack of trust hinder the process of introducing mechanistic effect models into ERA.  相似文献   
8.
Starting from the idea that places are socially constructed, this essay explores how a place is established and lived in Xinjiang by the members of the area’s two largest ethnicities, the Uyghur and the Han. This article demonstrates that there are differences in the ways Han and Uyghur imagine and ‘live’ Xinjiang.11. Xinjiang is not a very fortunate toponym to use here because it is a Han-language term (meaning ‘New Frontier’) that was imposed during the colonization of the region by the Qing Dynasty (1644–1911). However, since there is no other term that comprises both regions of Tarim Basin and Dzungaria and also eastern Xinjiang, I am compelled to use it. For a discussion of the complex question of toponym-usage in this region see Millward, Eurasian Crossroads.View all notes At the same time it asserts that Uyghur and Han do not establish distinct spatial relationships just because of their ethnicity, but also to enhance ethnic solidarity and boundaries vis-à-vis the other. This essay also demonstrates that places are historically contingent, and discusses the ways in which the influx of temporary Han migrants and settlers – and Han capital – has generated new layers of spatial meaning and new power differentials.  相似文献   
9.
This paper examines whether a bank exercises a monitoring role when a banker is represented on a firm’s board. Bank monitoring reduces information asymmetries, and hence lessens firm’s financial constraints—phenomenon frequently measured by investment-cash flow sensitivity in the sample of all non-financial companies listed during 1999–2002 on the Polish stock exchange. I find that firms with a banker on the board rely more heavily on bank loans than on internal capital in their investment activities. In contrast, firms with no banker on the board finance to a larger extent their investment with internal capital than with credit. However, firms with the bank-lender representation on the board are almost as much financially constrained as firms without a bank-lender representative on the board. Hence, the presence of bankers on boards is not associated with bank monitoring. They rather promote their employer’s business. The findings show that investment of firms with a banker on the board is less sensitive to cash flow than investment of firms without bank representatives on the board. This result suggests that bankers on the board provide financial expertise that help those firm to reduce financial constraints.  相似文献   
10.
We establish the upper nonpositive and all the lower bounds on the expectations of generalized order statistics based on a given distribution function with the finite mean and central absolute moment of a fixed order. We also describe the distributions for which the bounds are attained. The methods of deriving the lower nonpositive (upper nonnegative) and lower nonnegative (upper nonpositive) bounds are totally different. The first one, the greatest convex minorant method is the combination of the Moriguti and well-known Hölder inequalities and the latter one is based on the maximization of some norm on the properly chosen convex set. The paper completes the results of Cramer et al. [Evaluations of expected generalized order statistics in various scale units. Appl Math. 2002;29:285–295].  相似文献   
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