This article deals with the bootstrap as an alternative method to construct confidence intervals for the hyperparameters of structural models. The bootstrap procedure considered is the classical nonparametric bootstrap in the residuals of the fitted model using a well-known approach. The performance of this procedure is empirically obtained through Monte Carlo simulations implemented in Ox. Asymptotic and percentile bootstrap confidence intervals for the hyperparameters are built and compared by means of the coverage percentages. The results are similar but the bootstrap procedure is better for small sample sizes. The methods are applied to a real time series and confidence intervals are built for the hyperparameters. 相似文献
The concept of social justice shapes several of the competencies and practice behaviors of the Council of Social Work Education’s Educational Policy and Accreditation Standards (EPAS). Furthermore, a global perspective guides the social work profession and influences its educational programs. A number of social work scholars have adopted the capabilities approach, as defined by economist Amartya Sen and political scientist Martha Nussbaum, as a globally relevant social justice framework. This article builds on this scholarship, suggesting that the capabilities approach provides a blueprint to rethink and conceptualize the EPAS social justice pedagogy in the global context. Teaching illustrations integrating the capabilities approach in an EPAS curriculum are offered. 相似文献
The main objective of this study is to evaluate the impact of school furniture and work surface lighting on the body posture of two public Middle School students from Paraíba (Brazil). The target population included 8th grade groups involving 31 students. Brazilian standards for lighting levels, the CEBRACE standards for furniture measurements and the Postural Assessment Software (SAPO) for the postural misalignment assay were adopted for the measurements comparison. The statistic analysis includes analyses of parametric and non-parametric correlations. The results show that the students' most affected parts of the body were the spine, the regions of the knees and head and neck and about 90% of the students presented postural misalignment. The lighting levels were usually found below 300 lux, below recommended levels. Such results indicate the need of investments in more suitable school furniture and structural reforms aimed at improving the lighting in the classrooms, which could fulfill the students' profile and reduce their complaints. 相似文献
This article looks at the ability of a relatively new technique, hybrid artificial neural networks (ANNs), to predict Japanese banking and firm failures. These models are compared with traditional statistical techniques and conventional ANN models. The results suggest that hybrid neural networks outperform all other models in predicting failure for one year prior to the event. This suggests that for researchers, policymakers, and others interested in early warning systems, the hybrid network may be a useful tool for predicting banking and firm failures. 相似文献
The paper addresses the general socio‐cultural consequences of economic and political globalisation. With regard to the dispute between “universalists” and “culturalists” it holds the view that—contrary to expectations of cultural convergence and the emergence of universal values and institutions‐‐the “universal grip” of globalisation has produced a mirror effect of “localisation”; it has strengthened old boundaries and created new ones between religions, ethnic groups, regions or nations. This is the background against which the present communication between East and West Europeans is explored in the paper.
For Europe, globalisation has some additional effects, such as the collapse of the Soviet system in Eastern Europe. There, (a) globalisation coincides with the painful process of political and economic transformation and (b) revitalises the pre‐socialist context of the West‐East dichotomy. It shows that the East European variety of the opposition global‐local acquires additional drama due to being superceded by the opposition West‐East: the defensive reactions against globalisation are sharper and more powerful—and they are largely perceived and experienced as an East‐West controversy.
The paper explores the new mental barriers between West and East, the “wall in the heads”, and presents them as a major obstacle to the effective interpersonal communication in post‐socialist Europe. It is based on field research in Russia and Germany and uses the concept of “otherness” (Fremdheit) and the related ingroup‐outgroup category as key instruments for the interpretation and understanding of intercultural situations. The strengthening of the “us vs. them” boundary largely determines the communication process: it creates potential for conflict and has a negative effect on the motivation for cross‐cultural learning. Some implications for cross‐cultural educators and trainers are pointed out. 相似文献
Has the past decade of sustained economic growth and political transformations reversed Latin America's historical failure to secure market and social incorporation? To address this question this article draws on the experiences of Bolivia, Brazil, Chile, Peru and Uruguay by distinguishing between short‐term outcomes – which may depend on benign international conditions – and policy changes, which are more important for long‐term performance. It highlights the overall success of both Brazil and Uruguay and shows that the other countries have made more progress in terms of social than market incorporation. 相似文献
We examine the importance of the coparental relationship for nonresident fathers’ ties to their children. Using data from Wave 2 of the National Survey of Families and Households, we focus on the link between two dimensions of coparenting, cooperative coparenting and conflict over childrearing, and three dimensions of nonresident father involvement, contact, relationship quality, and responsive fathering. Cooperative coparenting predicts more frequent father‐child contact, which in turn predicts higher relationship quality and more responsive fathering. Conflict over childrearing, however, is not significantly related to nonresident father involvement. Findings are consistent across different groups of children. Results suggest that cooperative coparenting between parents who live apart is associated with stronger ties between nonresident fathers and their children.相似文献
Do social policies in Latin America promote or discourage distribution? And if they do promote distribution, are coalitions a prerequisite? Drawing from a typology of welfare regimes elaborated for 18 Latin American countries, this article explores responses to these questions by addressing three emblematic cases: Chile, Costa Rica and El Salvador – that is, countries where the management of social risks primarily revolves around markets, states and families, respectively. Although the article is exploratory, findings suggest that societal coalitions have been, and are likely to continue to be, weak in market welfare regimes, strong in state welfare regimes and contingent to policy sectors in familialistic welfare regimes. 相似文献