Coaching für japanische Migranten in Deutschland

Compared to other minority groups, Japanese migrants in Germany are regarded as privileged and homogeneous. The author argues against the stereotype of homogeneity and closely analyses this particular migrant group and its situational, heterogeneous necessities and objectives which motivate the use of diverse coaching methods. In addition, the author discusses traditional hierarchical values in the home culture which tends to project a role model in a coach. The mixture of Japanese migrants’ heterogeneous needs in coaching and their hierarchically homogeneous values cannot be adequately addressed by the application of conventional coaching methods in Germany.     

Using the community of inquiry for interviewing children: theory and practice

Involvement of children in research processes requires various ethical considerations. In particular, while interviewing children, a researcher needs to take into consideration the power imbalance between a researcher and children as well as among children. This article suggests a possible way of mitigating potential risks, drawing on the idea and practice of the Community of Inquiry (CoI) as an interview method. CoI is the practice of group dialog for knowledge-making, where participants talk about a common topic by sharing their lived experiences in a cooperative manner. This article shows that CoI allows children to act as both interviewers and interviewees, which helps children in reflective knowledge-making while at the same time mitigating the ethical concerns of interviewing. To illustrate how CoI can help achieve these goals, this article draws on the empirical research conducted with a group of junior high school students in Japan.     

Enabling children’s deliberation in deliberative systems: schools as a mediating space

In recent years, there has been a growing scholarly interest in conceptualising schools beyond their educational functions, as sites and agents of democracy. Yet this interest is often underpinned by a narrow conception of democracy, focusing solely on schools’ public and social aspects. To capture the democratic potential of schools more fully, this article suggests adopting a deliberative systems approach, which conceptualises democracy as differentiated yet linked sites of democratic communications and views schools as one such site. Using this approach as a broader framework and drawing on the fieldwork conducted in two Japanese schools, this article identifies the condition under which schools can become a meaningful part of deliberative systems. It reveals that schools contribute to deliberative systems when they serve as a bridge between children’s everyday practices and deliberative actions in the public space. In light of the findings, this article suggests conceptualising schools as a ‘mediating space’.     

互联网+“国际双师教学”:促进高等教育国际化发展的新途径

随着中国建设世界一流大学和一流学科的“双一流”水平的不断提高,国际化已经成为中国高等教育的发展战略之一。实现高等教育的国际化,必然需要具有先进的国际教育理念、共享优质的国际教育资源、引进先进的国际课程和高水平的外籍师资。在对中国国内互联网+“双师教学”进行追溯和分析的基础上,提出了互联网+“国际双师教学”这一新的教育模式,旨在期待其可以成为有效促进中国高等教育国际化发展的新途径。     

Bootstrap estimation and model selection for multivariate normal mixtures using parallel computing with graphics processing units

In applications of multivariate finite mixture models, estimating the number of unknown components is often difficult. We propose a bootstrap information criterion, whereby we calculate the expected log-likelihood at maximum a posteriori estimates for model selection. Accurate estimation using the bootstrap requires a large number of bootstrap replicates. We accelerate this computation by employing parallel processing with graphics processing units (GPUs) on the Compute Unified Device Architecture (CUDA) platform. We conducted a runtime comparison of CUDA algorithms between implementation on the GPU and that on a CPU. The results showed significant performance gains in the proposed CUDA algorithms over multithread CPUs.     

On the level probabilities for useful partially ordered alternatives in the analysis of variance

In the analysis of variance, we often encounter situations in which we want to test the null hypothesis of homogeneity of the normal means against various partially ordered alternative hypotheses. We study likelihood ratio tests for three useful types of alternatives: d-star, bipartite and broom tree. Especially, we give computational formulas for the level probabilities of the alternative types. The results permit us to obtain critical values for practical use.     

Testing for the Null Hypothesis of Cointegration with a Structural Break

In this paper we propose residual-based tests for the null hypothesis of cointegration with a structural break against the alternative of no cointegration. The Lagrange Multiplier (LM) test is proposed and its limiting distribution is obtained for the case in which the timing of a structural break is known. Then the test statistic is extended to deal with a structural break of unknown timing. The test statistic, a plug-in version of the test statistic for known timing, replaces the true break point by the estimated one. We show the limiting properties of the test statistic under the null as well as the alternative. Critical values are calculated for the tests by simulation methods. Finite-sample simulations show that the empirical size of the test is close to the nominal one unless the regression error is very persistent and that the test rejects the null when no cointegrating relationship with a structural break is present. We provide empirical examples based on the present-value model, the term structure model, and the money-output relationship model.