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51.
This study sought to examine the association between internalized homophobia and depressive symptoms in lesbian women, and establish whether such a relationship was mediated by collective self-esteem, self-esteem, and self-disclosure. Participants were 225 self-identified lesbian women in the community. Structural equation modeling was used to demonstrate that an underlying construct, labeled pride, reflected participants’ levels of self-esteem, collective self-esteem, and self-disclosure. Internalized homophobia was moderately and negatively predictive of pride, and pride was strongly and negatively predictive of depression. Results highlight the potentially protective role of pride in the prevention of depression among lesbian women.  相似文献   
52.
本文通过大量英文原始档案,叙述英国在两次鸦片战争得胜后,依从本土和在印商人同中国的西藏地方通商的要求,由英印选定锡金作为进入西藏的唯一途径,但派代表到边上联络或递信,都未成功。英印在锡金境内修路、廓尔喀上层趋向亲英,都激起藏民对英人的忌恨,拒绝英人入藏。英驻华公使向总理衙门屡次交涉西藏开放问题,不得结果。文中表露出这时期内英国仍然重视清朝在西藏拥有的主权地位。  相似文献   
53.
Higher education’s potential to transform social and economic status and improve society, underlies increasing demands to improve access. But simply increasing access is not sufficient—it is important to ask whether our prevailing pedagogical approaches facilitate an effective and socially just higher education system. In other words, are traditional pedagogical approaches used in universities today truly accessible to the broader student population entering university? The current paper argues that the majority of pedagogies remain rooted in traditional approaches that favor those who benefit from continuous education from primary through to tertiary education. Such approaches rely heavily on incremental credentialism and are neither truly accessible nor socially just. Most introductory courses in universities require prior knowledge and “expect” students to be enculturated into a particular type of learning: as such, students with different levels of preparation, who come from different backgrounds, may be excluded from full participation. In addition, the rising costs of tuition fees and textbooks, and access to technology create inequities that reinforce socially-based discrimination higher education. The paper reports on the impact of implementing a specifically designed course, using closed-loop, reiterative problem-based learning, to create learning paradigms that focus on a more socially just approach for students entering university: these courses do not demand specific prior knowledge, foster difficult ways of thinking, and focus on developing research skills through access to library resources. Finally, the paper reports on students’ expectations about higher education and underscores the importance of re-thinking at least the first-year experience for students.  相似文献   
54.
The Bootstrap and Kriging Prediction Intervals   总被引:1,自引:0,他引:1  
Kriging is a method for spatial prediction that, given observations of a spatial process, gives the optimal linear predictor of the process at a new specified point. The kriging predictor may be used to define a prediction interval for the value of interest. The coverage of the prediction interval will, however, equal the nominal desired coverage only if it is constructed using the correct underlying covariance structure of the process. If this is unknown, it must be estimated from the data. We study the effect on the coverage accuracy of the prediction interval of substituting the true covariance parameters by estimators, and the effect of bootstrap calibration of coverage properties of the resulting 'plugin' interval. We demonstrate that plugin and bootstrap calibrated intervals are asymptotically accurate in some generality and that bootstrap calibration appears to have a significant effect in improving the rate of convergence of coverage error.  相似文献   
55.
Hall et al. (2007 Hall , A. R. , Inoue , A. , Jana , K. , Shin , C. (2007). Information in generalized method of moments estimation and entropy based moment selection. Journal of Econometrics 138:488512.[Crossref] [Google Scholar]) propose a method for moment selection based on an information criterion that is a function of the entropy of the limiting distribution of the Generalized Method of Moments (GMM) estimator. They establish the consistency of the method subject to certain conditions that include the identification of the parameter vector by at least one of the moment conditions being considered. In this article, we examine the limiting behavior of this moment selection method when the parameter vector is weakly identified by all the moment conditions being considered. It is shown that the selected moment condition is random and hence not consistent in any meaningful sense. As a result, we propose a two-step procedure for moment selection in which identification is first tested using a statistic proposed by Stock and Yogo (2003 Stock , J. H. , Yogo , M. ( 2003 ). Testing for weak instruments in linear IV regression . Discussion paper, Kennedy School of Government, Harvard University, Cambridge, MA . [Google Scholar]) and then only if this statistic indicates identification does the researcher proceed to the second step in which the aforementioned information criterion is used to select moments. The properties of this two-step procedure are contrasted with those of strategies based on either using all available moments or using the information criterion without the identification pre-test. The performances of these strategies are compared via an evaluation of the finite sample behavior of various methods for inference about the parameter vector. The inference methods considered are based on the Wald statistic, Anderson and Rubin's (1949 Anderson , T. W. , Rubin , H. ( 1949 ). Estimation of the parameters of a single equation in a complete system of stochastic equations . Annals of Mathematical Statistics 20 : 4663 .[Crossref] [Google Scholar]) statistic, Kleibergen (2002 Kleibergen , F. ( 2002 ). Pivotal statistics for testing structural parameters in instrumenatl variables regression . Econometrica 70 : 17811803 .[Crossref], [Web of Science ®] [Google Scholar]) K statistic, and combinations thereof in which the choice is based on the outcome of the test for weak identification.  相似文献   
56.
Global Englishes, Rip Slyme, and performativity   总被引:1,自引:0,他引:1  
In this article I suggest that while recent sociolinguistic work focusing on crossing, styling the Other or language boundaries is raising significant questions concerning how we relate language, identity and popular culture, these insights have largely passed by the sociolinguistics of world Englishes. This latter work is still caught between arguments about homogeneity and heterogeneity, between arguments based on liberal accommodationism, linguistic imperialism or linguistic hybridity that do not allow for sufficiently complex understandings of what is currently happening with global Englishes. Focusing particularly on rap music, I suggest that we need, at the very least, a critical understanding of globalization, a focus on popular cultural flows, and a way of taking up performance and performativity in relationship to identity and culture.  相似文献   
57.
Summary.  Life course epidemiology concentrates on the contribution that social or physical exposures have across the life course on adult health. It is known that the area of residence can affect health, but little is known about the effect of the area of residence across the life course. We examine the contribution that area of residence in 1960, 1970, 1980 and 1990 made on subsequent mortality for 49736 male inhabitants of Oslo in 1990. We compare the performance of multiple-membership and cross-classified multilevel models on these data with a correlated cross-classified model that was developed for this.  相似文献   
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