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1.
Christof Van Mol 《Identities: Global Studies in Culture and Power》2017,24(1):100-118
This article focuses on individual migration and acculturation processes experienced by Moroccan women in the area of Madrid, based on qualitative research conducted in the Spanish capital in 2008. The results show that Moroccan women restructure their daily practices through complex acculturation processes, orienting them towards both the society of origin and that of arrival. They experience a constant struggle in getting to know the traditions of Spanish society, reorienting their former traditions and inventing new solutions. Moroccan women develop new ways of adapting themselves to their situation in Madrid. This acculturation process bridges the continuity with their culture of origin and reflects changes related to the new context. The studied women move in a transnational space with rigid borders, which is intersected by several social categories such as their education, ethnicity and gender, influencing their relative position within this space. 相似文献
2.
ABSTRACTHigher education is one of the social fields where inequalities are produced and reproduced. Nevertheless, we still know very little about the ways in which heterogeneities and inequalities have been experienced and interpreted by those involved in international academic mobility. In this introductory editorial, we consider some of the crucial conceptual issues involved in the study of the nexus between inequalities and international academic mobility. First, we argue that it is important to take manifold inequalities into account when examining this nexus. After all, inequalities can be detected at different levels, and the mobility process is structured around multiple heterogeneities rather than by a single one. Second, we discuss how international academic mobility and inequalities attached to it go beyond nation-state borders. Third, we argue it is beneficial to extend the scope of to the mobility process as a whole, as inequalities in opportunities and outcomes are intrinsically connected. 相似文献
3.
Christof Van Mol 《Journal of youth studies》2016,19(10):1303-1320
In recent years, the European Union (EU) passed through a significant economic crisis. All across Europe, European young people are among the groups which are hit hardest, with youth unemployment rates rising to over 50% in member states such as Greece and Spain. In the classical migration literature, it is suggested that such unfavourable economic climate would make people more likely to move abroad. Whereas in press releases we are regularly confronted with stories about South European young adults with tertiary education working in bars in Northern European cities, limited empirical evidence exists as such on the relationship between the recent Euro-crisis and migration aspirations. This paper addresses this gap in the academic literature. Using data from Flash Eurobarometer 395, I investigate which micro- and macro-level characteristics influence migration aspirations of young people across the member states of the EU. The results reveal the importance of individual characteristics and feelings of discontent with the current climate in explaining migration aspirations. Furthermore, I detect a negative relationship of relative welfare levels with migration aspirations, and a positive relationship of the youth unemployment ratio. Together, the results suggest that potential young intra-EU movers are positively selected from the population. 相似文献
4.
Gabriel Frahm Tobias Wickern Christof Wiechers 《AStA Advances in Statistical Analysis》2012,96(3):343-383
In the context of modern portfolio theory, we compare the out-of-sample performance of eight investment strategies which are based on statistical methods with the out-of-sample performance of a family of trivial strategies. A?wide range of approaches is considered in this work, including the traditional sample-based approach, several minimum-variance techniques, a shrinkage, and a minimax approach. In contrast to similar studies in the literature, we also consider short-selling constraints and a risk-free asset. We provide a way to extend the concept of minimum-variance strategies in the context of short-selling constraints. A main drawback of most empirical studies on that topic is the use of simple testing procedures which do not account for the effects of multiple testing. For that reason we conduct several hypothesis tests which are proposed in the multiple-testing literature. We test whether it is possible to beat a trivial strategy by at least one of the non-trivial strategies, whether the trivial strategy is better than every non-trivial strategy, and which of the non-trivial strategies is significantly outperformed by naive diversification. The empirical part of our study is conducted using US stock returns from the last four decades, obtained via the CRSP database. 相似文献
5.
Stephen Quinlan Tobias Gummer Joss Roßmann Christof Wolf 《Information, Communication & Society》2018,21(8):1031-1049
Our study explores the adoption of Facebook and Twitter by candidates in the 2013 German Federal elections. Utilizing data from the German Longitudinal Election Study candidate survey fused with data gathered on the Twitter and Facebook use of candidates, we draw a clear distinction between Facebook and Twitter. We show that adoption of both channels is primarily driven by two factors: party and money. But the impact of each plays out differently for Facebook and Twitter. While the influence of money is homogenous for Facebook and Twitter with the more resources candidates have, the more likely they are to adopt, the effect is stronger for Facebook. Conversely, a party’s impact on adoption is heterogeneous across channels, a pattern we suggest is driven by the different audiences Facebook and Twitter attract. We also find candidates’ personality traits only correlate with Twitter adoption, but their impact is minimal. Our findings demonstrate that social media adoption by politicians is far from homogenous, and that there is a need to differentiate social media channels from one another when exploring motivations for their use. 相似文献
6.
Jr-Prof. Dr. David Woisetschl?ger Prof. Dr. Heiner Evanschitzky Dr. Christof Backhaus 《Zeitschrift für Betriebswirtschaft》2011,81(2):183-204
Service providers frequently offer better deals to prospective customers than they offer to customers who prolong their contracts. The present paper examines the effectiveness of incentives on new customers and, perhaps even more significantly, assesses negative effects on existing customers. To test the hypothesized effects, a series of two experiments was conducted. Results indicate that promotions that are offered exclusively to prospective customers have a negative effect on existing customers, and that this negative effect is stronger for customers with a short relationship age and for those at the end of their contract life-cycle. The unfairness and inequity perceived by existing customers can be substantially reduced if these customers are offered the opportunity to receive a part of the promotion value, while the promotion??s effectiveness to attract new customers remains unaffected. 相似文献
7.
Seiler SN Brummel BJ Anderson KL Kim KJ Wee S Gunsalus CK Loui MC 《Accountability in research》2011,18(4):217-246
We describe the summative assessment of role-play scenarios that we previously developed to teach central topics in the responsible conduct of research (RCR) to graduate students in science and engineering. Interviews with role-play participants, with participants in a case discussion training session, and with untrained students suggested that role-playing might promote a deeper appreciation of RCR by shifting the focus away from wanting to simply "know the rules." We also present the results of a think-aloud case analysis study and describe the development of a behaviorally-anchored rating scale (BARS) to assess participants' case analysis performance. 相似文献
8.
Stephanie N. Seiler Ph.D. Bradley J. Brummel Ph.D. Kerri L. Anderson M.H.R.I.R. Kyoung Jin Kim Ph.D. Serena Wee Ph.D. C. K. Gunsalus J.D. 《Accountability in research》2013,20(4):217-246
We describe the summative assessment of role-play scenarios that we previously developed to teach central topics in the responsible conduct of research (RCR) to graduate students in science and engineering. Interviews with role-play participants, with participants in a case discussion training session, and with untrained students suggested that role-playing might promote a deeper appreciation of RCR by shifting the focus away from wanting to simply “know the rules.” We also present the results of a think-aloud case analysis study and describe the development of a behaviorally-anchored rating scale (BARS) to assess participants' case analysis performance. 相似文献
9.
Calculations of attributable risks have attracted increasing interest recently. However, these efforts have been limited to mostly one agent, radiation, and no interactions with effects of other toxic agents have been taken into account. This paper outlines a generic approach to the calculation of attributable risks for an exposure to several toxic agents and interaction effects associated with them. In this calculation, the partition of interaction terms between the agents responsible is of particular importance. At present, there are no rules on how to assign equitable shares, so one methodology will be proposed and others discussed briefly. For one example of an assignment, the standard errors of the attributable risks are determined in terms of the uncertainties of the input parameters, thus setting the stage for a comparison of the different shares of responsibility. 相似文献
10.