Adaptive multiple importance sampling for Gaussian processes

In applications of Gaussian processes (GPs) where quantification of uncertainty is a strict requirement, it is necessary to accurately characterize the posterior distribution over Gaussian process covariance parameters. This is normally done by means of standard Markov chain Monte Carlo (MCMC) algorithms, which require repeated expensive calculations involving the marginal likelihood. Motivated by the desire to avoid the inefficiencies of MCMC algorithms rejecting a considerable amount of expensive proposals, this paper develops an alternative inference framework based on adaptive multiple importance sampling (AMIS). In particular, this paper studies the application of AMIS for GPs in the case of a Gaussian likelihood, and proposes a novel pseudo-marginal-based AMIS algorithm for non-Gaussian likelihoods, where the marginal likelihood is unbiasedly estimated. The results suggest that the proposed framework outperforms MCMC-based inference of covariance parameters in a wide range of scenarios.     

Toward a multi‐ethnic public sphere? Media consumption in highly diverse districts in Spain

This article examines media consumption in highly diverse districts in Spain as representative of recent changes in this field due to new immigration to countries in Southern Europe in times of crisis. Drawing on findings from two surveys, we observed a decrease in access to media specifically aimed at audiences of minority cultures between 2010 and 2012. It is suggested that this decline is not due to a modification in media consumption habits by minority groups, but rather the economic crisis of 2008. Furthermore, we study the consumption of minority media by natives: we observe that youth and more educated individuals consume other cultures’ minority media to a greater extent, particularly the press, radio, and Internet news sources. We suggest that elements are present that public administrations could utilize to further develop a multi‐ethnic public sphere. Finally, we explore the emergence of a new transnational dimension to the multi‐ethnic public sphere.     

Five Star Teacher: In-Service on the Move

Teachers learned knowledge, skills, values, and dispositions through spending significant amounts of time working with heritage sites as they learned more about social studies. Elementary social studies teachers engaged in teacher in-service to increase their abilities to meet geography standards. Teacher professional development that caused instructors to engage with cultural and historic sites benefited them and should be considered as well as other models of teacher in-service. Teachers used study travel opportunities to engage in geographic investigation and exploration to accomplish inquiry. Teachers determined that extended time was required to experience the place, to value it, and to harbor the disposition to teach about it; they learned in-depth content from spending time on-site, and they learned skills to extract knowledge from site through reading the landscape. Teachers encountered multiple perspectives, technology, and controversial issues through their studies of regions in the Ohio River Valley. Teachers of elementary social studies may wish to consider this type of professional development to understand a sense of place and how it relates to the curriculum they teach.     

Tracing normal lives: between stigma and the will to be Cigano

Despite the stereotyped homogenisation of the Ciganos (or Gypsies/Roma) – often perceived as poor and marginalised – many have in fact taken different personal and family life paths. Taking into account a perspective of differentiated socialisation processes, social and family contexts and frames of life experiences, the aim of this paper is to present the main results obtained from a qualitative study where in-depth interviews were conducted with Ciganos integrated in the Portuguese labour market (as employees). Our focus is on the processes of social integration, on the many revelations of social and cultural pluralism, and on Gypsy identity, centring attentions and how such identification often serves to challenge the static and hegemonic conceptions about the cultural traits and representations of this population.     

Evaluating the Nature of the Still‐Face Effect in the Double Face‐to‐Face Still‐Face Paradigm Using Different Comparison Groups

The current study explored two possible comparison groups for the double Face‐to‐Face Still‐Face (FFSF) paradigm to evaluate their effects on infant behavior and different hypotheses about the nature of the Still‐Face (SF) effect, an effect not fully understood. Mothers and their 4‐month‐old infants were randomly assigned to one of three groups, a double FFSF group (Group_FFSF, n = 44), a control, semi‐structured play group (Group_Story, n = 46), or a control, unstructured play group (Group_Play, n = 28). As hypothesized, Group_FFSF infants exhibited the classic SF response (decreased positive affect and gaze to mother; increased negative affect) and Group_Play infants showed an increase in negative affect over episodes. Contrary to expectations, Group_Story infants displayed a similar, but less intense, pattern of behavior as Group_FFSF. Taken together, the findings indicate that multiple episodes of face‐to‐face play exceeded 4‐month‐olds' regulatory capacities and that infants are sensitive to shared communicative intentions and violations of social expectations, whether these violations are negative or positive in nature.     

“Behind Every Great Man…”: The Male Marriage Wage Premium Examined Qualitatively

Studies across diverse national contexts reliably show that married men earn more than unmarried men, but the mechanisms responsible for this are still disputed. This article explores the male marriage wage premium from a new perspective, using longitudinal qualitative data from Russia (N = 94). Qualitative research is particularly suited to identifying underlying processes and, by analyzing men's accounts of the influence of their marital trajectories on their work, the authors were able to reexamine existing hypotheses and develop new ones. They propose 4 mechanisms that they hypothesize can influence men's work motivation and performance: premarital planning, 2 distinct “breadwinner” effects using expectancy and self determination theory, and monitoring by wives. They integrate these mechanisms within gender theory, arguing that the treatment aspect of the male marriage wage premium is an outcome of the “coproduction” of masculinity within marriage. Their recontextualization of existing theory also enables them to reveal weaknesses in the specialization hypothesis.     

Language,Class, and Nation in a Soviet Ukrainian Blockbuster Comedy: Chasing Two Hares (1961)

Abstract

The subject of this article is one of the most popular comedy films of the late Soviet period, Za dvoma zaitsiamy [Chasing Two Hares]. Made at the Kyiv Film Studio in 1961, it was originally a Ukrainian-language film based on Mykhailo Staryts'kyi’s eponymous 1883 play that satirized pretentious upstarts eager to assimilate into Russian culture. However, the completed film was dubbed into Russian and released throughout the Soviet Union in the Russian version. The change of language reversed the meaning of the film’s satire, turning the movie into a harmless folkloric comedy that reinforced imperial cultural hierarchies rather than undermining them.     

CONSOLIDATING THE EVIDENCE ON INCOME MOBILITY IN THE WESTERN STATES OF GERMANY AND THE UNITED STATES FROM 1984 TO 2006

The cross‐national intragenerational literature has often analyzed income mobility within short time periods over which mobility might reasonably be thought of as invariant. Here, we argue that a great social transformation—German reunification—abruptly and permanently altered mobility. Using standard measures (with panel data for the western states of Germany and the United States) over the period 1984–2006, we find the conventional result that income mobility is greater in Germany. But when we cut the data into 5‐year windows, we find that income mobility declines significantly over the years immediately following reunification in Germany but not in the United States, using both measures. (JEL J1, J6)