The Jewish Emigration from the Former Soviet Union to Germany

Since the end of the 1980s a massive emigration of Jews from the former Soviet Union (FSU) can be observed. Israel and the United States were the most important receiving countries, followed by Germany, a comparatively new immigration destination for Jews from the successor states of the USSR. One of the reasons the German Government allowed the admission of Jews from post-Soviet states was the Jewish community's claim that this immigration might rejuvenate the German Jewish population in the longer run. Using an index of demographic aging (Billeter's J), the following article examines if this has actually happened. Findings suggest that immigration actually initiated a process of rejuvenation in the Jewish population in Germany. However, it was reversed during the end of the 1990s because of an unaffected low fertility.     

Checking a Semiparametric Additive Risk Model

McKeague and Sasieni [A partly parametric additive risk model. Biometrika 81 (1994) 501] propose a restriction of Aalen’s additive risk model by the additional hypothesis that some of the covariates have time-independent influence on the intensity of the observed counting process. We introduce goodness-of-fit tests for this semiparametric Aalen model. The asymptotic distribution properties of the test statistics are derived by means of martingale techniques. The tests can be adjusted to detect particular alternatives. As one of the most important alternatives we consider Cox’s proportional hazards model. We present simulation studies and an application to a real data set.     

Der Fussballverein zwischen e.V. und Kapitalgesellschaft

The overcoming of the dilemma of members’ contribution and efficient goal attainment leads German soccer clubs to an organizational development process. Three patterns of overcoming this dilemma in clubs of the first German soccer league are discussed. After analyzing theoretical problems of clubs at the point of view of rational-choice-theory, we focus on the three patterns of overcoming the dilemma and illustrate each with a case study. For the case studies we choose three traditional soccer clubs from the Ruhr-area. The three patterns are: (1) The classical German club structure: In this case the control of the resource ‘provision of capital’ solves the dilemma ad hoc in favor of goal attainment. (2) The stock company structure without a joint investment structure: This pattern preserves the participation of the members only by representatives through the introduction of a supervisory board. (3) Limited liability company as the general partner of a public limited company (a typical German form of a joint stock company): In this pattern the soccer club is transformed into a company, which restricts the members’ participation possibilities to symbolic acts in favor of goal attainment. The organizational development process of the German soccer clubs leads in general to a democratic-flexible form of organization.     

Burnout and Mental Health in Swiss Vocational Students: The Moderating Role of Physical Activity

Few studies have focused on burnout among vocational students. This study examined the association between burnout and mental health among 56 Swiss vocational students (29 males, 27 females, M = 18.1, SD = 1.2 years) and tested whether recommended levels of moderate‐to‐vigorous physical activity (MVPA) attenuate this relationship. Burnout was strongly associated with increased depressive symptoms and decreased levels of life satisfaction, mental toughness, and quality of sleep. Students above recommended levels of MVPA reported lower burnout and higher mental health. No significant moderator effects were observed. Symptoms of burnout were associated with increased mental health problems. Physical activity should be promoted to prevent burnout, because nearly half of the students did not meet MVPA recommendations.     

Transnationale Projektarbeit. Berufsbiografische Strategien der Sicherung von Autonomie, Zugehörigkeit und Identität

The article intends to broaden the discussion about the globalization of management by analyzing an intermediate, operative level of management in the context of transnational project work. In contrast to Kanter’s (1996) thesis of the emergence of a “world class of management” the identity concepts, career strategies and social embeddedness of this level of management clearly show the contradictions and ambivalences peculiar to this kind of work. Drawing on group discussions as well as problem-centred interviews three types of biography politics in the context of transnationalization are discerned. By more or less intentionally unfolding these politics in the course of their biographies, the subjects are struggling for autonomy, affiliation and individual history.     

Subjective and objective evaluation of sense of space for vehicle occupants based on anthropometric data

At present, the number of the vehicle requirements has been continuously increasing. These requirements can be related to the customer as well as the technical requirements. Among these, the "feeling of space" of the occupants inside the vehicles can be regarded as one of the most important factors. In this respect, the driver and passengers should be able to experience positive feeling of space inside the vehicle. There are numerous factors that can influence the sense of space inside the vehicle. These include geometry (vehicle dimensions), light exposure, ambient lights, colors, material selection and material surface. Depending on the selection, the sense of space can be dramatically influenced by these factors. In general, human feeling is subjective and cannot be measured by any instrument. The measure can nevertheless be carried out by utilizing the method of subjective evaluation. Throughout the experiments, the method of evaluation is developed and the factors which can influence the interior feeling are analyzed. In this process, psychological perception, architectural aspects and anthropometry are considered and knowledge from the other domains is transferred in the form of a multidisciplinary approach. The experiments with an aim to evaluate the overall sense of space in the vehicle are carried out based on the physical mock up of BMW 1 series (E87). The space perception with different interior dimensions and anthropometric data of test persons are also analyzed. The use of Computer Aided Technology was shown by CATIA V5, PCMAN and RAMSIS. The results show a good correlation between the subjective evaluation and the geometric values.     

Effect of neglected deterministic seasonality on unit root tests

Whenever deterministic seasonality is ignored, the distribution of the Dickey-Fuller test is shifted to the left, with lower dispersion at the same time. When accounting for serial correlation, the distortions become less predictable. A Monte Carlo study confirms that the (augmented) Dickey-Fuller test without seasonal dummies is oversized and has little power at the same time, due to the need of lag augmentation. The effect of neglecting seasonal deterministics on the KPSS test for stationarity depends on the way the long-run variance is estimated. This is a shorter version of a working paper containing additional experimental evidence and the proofs of the propositions. The working paper is available online under http://www.wiwi.uni-frankfurt.de/~deme/ends_urt.pdf.