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111.
Age‐at‐arrival is a key predictor of many immigrant outcomes, but discussion continues over how to best measure and study its effects. This research replicates and extends a pioneering study by Myers, Gao, and Emeka [International Migration Review (2009) 43:205–229] on age‐at‐arrival effects among Mexican immigrants in the U.S. to see if similar results hold for other immigrant groups and in other countries. We examine data from the 2000 U.S. census and 2006 American Community Survey, and 1991, 2001, and 2006 Canadian censuses to assess several measures of age‐at‐arrival effects on Asian immigrants’ socioeconomic outcomes. We confirm several of Myers et al.’s key findings, including the absence of clear breakpoints in age‐at‐arrival effects for all outcomes and the superiority of continuous measures of age‐at‐arrival. Additional analysis reveals different age‐at‐arrival effects by gender and Asian ethnicity. We suggest guidelines, supplementing those offered by Myers et al., for measuring and studying age‐at‐arrival’s effects on immigrant outcomes.  相似文献   
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The organized camp experience has been an important part of the lives of children, youth, and adults for over 150 years. The camp experience is a way for young people to explore and search for an authenticity often missing in other parts of their lives that contributes to their healthy transition into adulthood. Over the past decade, tremendous growth in the volume and rigor of camp-related research has occurred, facilitated by a targeted research agenda conducted by the American Camp Association. This agenda was founded on three national research projects conducted between 2003 and 2007: a study to identify the developmental outcomes of the camp experience, a benchmarking study of the youth development supports and opportunities provided through camp experiences, and a program improvement project directed toward enhancing supports and opportunities provided by camps. The findings from these research projects suggest that camp experiences promote developmental outcomes in both campers and staff and that camps provide the supports and opportunities needed for positive youth development. This article explores the developmental outcomes of the camp experience and the characteristics of the supports and opportunities afforded by camp experiences, including settings, structures, and programs and activities, as a way to provide a clearer understanding of camp as a positive youth development setting. Innovations and opportunities in research related to the provision of quality camp experiences are also considered.  相似文献   
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Review of Managerial Science - Third-party funding of academic research has grown rapidly in its scope and impact. However, several forces demand greater attention to potential opportunities,...  相似文献   
115.
Stochastic scenario trees are a new and popular method by which surveillance systems can be analyzed to demonstrate freedom from pests and disease. For multiple component systems—such as a combination of a serological survey and systematically collected observations—it can be difficult to represent the complete system in a tree because many branches are required to represent complex conditional relationships. Here we show that many of the branches of some scenario trees have identical outcomes and are therefore redundant. We demonstrate how to prune branches and derive compact representations of scenario trees using matrix algebra and Bayesian belief networks. The Bayesian network representation is particularly useful for calculation and exposition. It therefore provides a firm basis for arguing disease freedom in international forums.  相似文献   
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The purpose of this study was to validate and expand on Y. B. Chung's (2001) models of work discrimination and coping strategies among lesbian, gay, and bisexual persons. In semistructured individual interviews, 17 lesbians and gay men reported 35 discrimination incidents and their related coping strategies. Responses were coded based on Chung's models. Results supported the validity of the Work Discrimination model and two coping strategy models (Vocational Choice and Identity Management). The Discrimination Management coping strategy model was expanded. Implications for practice and research are discussed.  相似文献   
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有许多众所周知的方法可以减少二氧化碳的排放,例如:减少石化燃料的使用、使用太阳能或风力等再生能源、开省油的车子或替代能源车、使用省电的电子产品,并切实做到减量、重复使用和回收等。然而,当前有关全球变暖的辩论几乎都集中在能源及交通运输方面。  相似文献   
118.
Willful leaders and mindless masses are governing images in Carlyle's and Nietzsche's romantic conception of political domination. In contrast, the nineteenth century American notion of heroic leadership was inspired by liberal sentiment and drew mainly on classical republican definitions of greatness. These sentiments and definitions supplied the basis for Ralph Waldo Emerson's theory of heroes and hero worship. The first part of this paper shows how the tension between elitist and democratic conceptions of the hero permeated Emerson's early work, and how this tension was finally resolved in his essays on representative men. The second part of the paper deals with Charles Horton Cooley's admiration of Emerson, and the affinity between Emerson's mature ideas and Cooley's studies of genius, emulation, fame, and leadership. Cooley's political sociology, like Emerson's, was based on a profound attachment to democratic principles. Cooley also believed, as did Emerson, that these intangible principles only remain secure as long as society emulates the great men who personify them. Building upon Emerson's conception of the heroic figure as a symbol rather than a source of social order and social change, Cooley passed on to later generations of American sociologists a conception of heroic leadership that differs sharply from the romantic visions which prevailed in Europe from Emerson's time to Cooley's own day.  相似文献   
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