Intercultural language educators for an intercultural world: action upon reflection

Abstract

Bearing in mind that learning a new language is much more than acquiring a new code, but a new way of being in the world, the aim of the article is to briefly raise and discuss relevant issues relating to language teacher education in these contemporary times, especially in the area of English Language Teaching (ELT). Emphasis is placed on the importance of teacher education responding to the new demands of this globalised world, proposing among several aspects, new political and pedagogical postures which are to lead into preparing students to become more critical of their own realities and more sensitive to the intercultural encounters they are supposed to engage with this highly complex and ever increasingly intercultural world.     

Comparing protests and demonstrators in times of austerity: regular and occasional protesters in universalistic and particularistic mobilisations

The recent economic crisis shaped a new wave of protest in Europe mobilising thousands of people. Austerity measures brought not only the ‘usual suspects’ onto the streets, they also awoke less frequent demonstrators. What brought all these people to the streets? Are their motivations the same for participation in all demonstrations? We compare participants in two types of mobilisations against austerity: those called particularistic (which are reactions to particular anti-austerity issues), and those universalistic (which address much broader issues such as questioning the political system). We also compare two typologies of participants taking into account their participation history: regular and occasional protesters. Employing a two-by-two design defined by type of demonstration (Particularistic vs. Universalistic) and the individual’s participation history (Occasionals vs. Regulars), we found that the differences between demonstrations were smaller than those within types of protesters. Nevertheless, even in this period of hardship, motivation to participate in particularistic or universalistic protests differ depending on the perceptions of political system, ideological positioning and organisational embeddedness. Interaction analyses showed that different levels of identity, trust in institutions and satisfaction with democracy are crucial in driving people to participate in different types of demonstrations as occasionals or regulars.     

Divorce and the business cycle: a cross-country analysis

In this paper, we examine the role of the business cycle in divorce. To do so, we use a panel of 29 European countries covering the period from 1991 to 2012. We find the unemployment rate negatively affects the divorce rate, pointing to a pro-cyclical evolution of the divorce rate, even after controlling for socio-economic variables and unobservable characteristics that can vary by country, and/or over time. Results indicate that a one-percentage-point increase in the unemployment rate involves almost 0.025 fewer divorces per thousand inhabitants. The impact is small, representing around 1.2 % of the average divorce rate in Europe during the period considered. Supplementary analysis, developed to explore a possible non-linear pattern, confirms a negative relationship between unemployment and divorce in European countries, with the inverse relationship being more pronounced in those countries with higher divorce rates.     

A Wald-type test statistic based on robust modified median estimator in logistic regression models

In this paper a new robust estimator, modified median estimator, is introduced and studied for the logistic regression model. This estimator is based on the median estimator considered in Hobza et al. [Robust median estimator in logistic regression. J Stat Plan Inference. 2008;138:3822–3840]. Its asymptotic distribution is obtained. Using the modified median estimator, we also consider a Wald-type test statistic for testing linear hypotheses in the logistic regression model and we obtain its asymptotic distribution under the assumption of random regressors. An extensive simulation study is presented in order to analyse the efficiency as well as the robustness of the modified median estimator and Wald-type test based on it.     

Empirical characteristic function tests for GARCH innovation distribution using multipliers

Goodness-of-fit tests for the innovation distribution in GARCH models based on measuring deviations between the empirical characteristic function of the residuals and the characteristic function under the null hypothesis have been proposed in the literature. The asymptotic distributions of these test statistics depend on unknown quantities, so their null distributions are usually estimated through parametric bootstrap (PB). Although easy to implement, the PB can become very computationally expensive for large sample sizes, which is typically the case in applications of these models. This work proposes to approximate the null distribution through a weighted bootstrap. The procedure is studied both theoretically and numerically. Its asymptotic properties are similar to those of the PB, but, from a computational point of view, it is more efficient.     

Bivariate degradation modelling with marginal heterogeneous stochastic processes

In this paper, we consider that the degradation of two performance characteristics of a product can be modelled by stochastic processes and jointly by copula functions, but different stochastic processes govern the behaviour of each performance characteristic (PC) degradation. Different heterogeneous and homogeneous models are presented considering copula functions and different combinations of the most used stochastic processes in degradation analysis as marginal distributions. This is an important aspect to consider because the behaviour of the degradation of each PC may be different in its nature. As the joint distributions of the proposed models result in complex distributions, the estimation of the parameters of interest is performed via MCMC. A simulation study is performed to compare heterogeneous and homogeneous models. In addition, the proposed models are implemented to crack propagation data of two terminals of an electronic device, and some insights are provided about the product reliability under heterogeneous models.     

Confidence band for percentile line in multiple linear regression

We deal with the problem of estimating constructing a confidence band for the 100γth percentile line in the multiple linear regression model with independent identically normally distributed errors. A method for computing the exact Scheffé type confidence band over a limited space of the particular covariates region is suggested. A confidence band depends on an estimator of the percentile line. The confidence bands based on the different estimators of the percentile line are compared with respect to the average bandwidth.     

Darling-Erdös-type test for change detection in parameters and variance for stationary VAR models

The aim of this article is the construction of the test statistic for the detection of changes in vector autoregressive (AR) models where both AR parameters and the variance matrix of the error term are the subjects of a change. The approximating distribution of the proposed statistic is the Gumbel distribution. The proof stands on the approximation of weakly dependent random vectors by independent ones and by application of Horváth’s extension of Darling-Erdös extremal result for random vectors, see Darling and Erdös (1956) Darling, D.A., Erdös, P. (1956). A limit theorem for the maximum of normalized sums of independent random variables. Duke Math. J. 23:143–155.[Crossref], [Web of Science ®] , [Google Scholar] and Horváth (1993) Horváth, L. (1993). The maximum likelihood method for testing changes in the parameters of normal observations. Ann. Stat. 21(2):671–680.[Crossref], [Web of Science ®] , [Google Scholar]. The test statistic is a modification of the likelihood ratio.     

Organisation Workshop. Beyond the Workplace: Large Groups,Activity and the Shared Object

Organisation Workshop stands for a body of practice derived from the pioneering work that Clodomir de Morais did with the Brasilian Peasant Leagues starting in the early 1960s and shown to be relevant today in situations of high unemployment. Two essential ingredients are a large group and a common resource pool. The Organisation Workshop method is illuminated by Leontiev’s “objectivised activity” concept, as well as important insights from 3 generations of activity theory (CHAT). Moraisean thought and practice are shown to open up new avenues to community development and to break new ground in the social psychology of the large group.