Integrationstandems und Supervised Networking mit geflüchteten Menschen in studentischen Gruppen durch Service LearningIntegration Tandems and Supervised Networking with Refugees in Student Groups through Service Learning

This contribution reports on a pilot project which took place during the winter semester 2015/16 at the University of Göttingen based on the concept of Service Learning. As part of service learning, students assume practical tasks from the social environment and apply academic knowledge. With this new didactical approach, personality development of the students as well as civil and democratic values in society should be enhanced.     

Talking with like-minded people—Equality and efficacy in enclave deliberation

Enclaves of like-minded people are often seen as problematic from a democratic point of view, as they have been found to lead to both group polarization and an amplification of cognitive errors. Nevertheless, enclaves can also act as protected spaces have the opportunity to discuss politics with their peers. As a result, people who are less well-endowed to face political disagreement can find it easier to engage in politics. In order to study the ‘empowering’ potential of enclave deliberation, we use data from a population-based experiment (n = 207). The participants were randomly allocated to two treatments. Some participants deliberated in groups consisting of people with similar baseline views on immigration (like-minded treatment), whereas others deliberated in groups where both restrictive and permissive participants were present (mixed treatment). We hypothesize that (1) discussion in like-minded groups is more equal than in mixed opinion groups and that (2) participants with lower resources feel politically more efficacious after deliberation in like-minded than in mixed groups. Our results suggest that people with higher resources tend to be more active regardless of treatment. Nevertheless, we also find that among those with lower resources deliberation in like-minded groups generates a higher sense of equality than discussion in mixed opinion groups.     

Structures,Challenges, and Successes of Volunteer Programs Co‐managed by Nonprofit and Public Organizations

This article presents a mixed‐methods, multicase study and comparison of volunteer programs in US national parks that have evolved, in response to growth and fiscal pressures, to be co‐managed by national park staff and their nonprofit support partners. Findings detail why and how the expanded partnerships were formed; how they operate; challenges they face; ways in which they adhere to, stretch, and depart from theories of nonprofit management, collaboration, and program institutionalization; and the significant—even exponential—volunteer program growth that resulted in each case. These nonprofit?public volunteer program partnerships—at Acadia, Arches and ­Canyonlands, Cuyahoga Valley, Golden Gate, the National Mall, and Yosemite national park sites—employ many standard forms of interorganizational relations, even though in these cases the nonprofits give money to the government organization instead of the reverse. Their volunteer program and management structures also share similar elements because of coercive, normative, and mimetic pressures. At the same time, each volunteer program partnership is a distinct blend of collaboration and management practices because of the unique natural features, climate, needs, adjacent populations, and personalities of leaders at each site. The cases employ innovative strategies to substantially increase the number of staff who lead volunteer programs. Recommendations are offered for nonprofit management research and practice, and findings are instructive for organizations that utilize volunteers either as a single entity or as part of a collaboration.     

Childcare and parental work schedules: a comparison of childcare arrangements among Finnish,British and Dutch dual-earner families

This study examined the association between parental work schedules and non-parental childcare arrangements among dual-earner families in Finland, the Netherlands and the UK. Data from the ‘Families 24/7’ web survey were used, including 937 parents with children aged 0–12 years. Results showed a negative association between non-standard work and formal childcare across all countries. A similar association was found for using a combination of formal and informal childcare, whereas solely using informal childcare was not associated with work characteristics. Country differences showed that, compared with Finland, the probability of using formal childcare was lower in the Netherlands, whereas the probability of using informal childcare was higher in the UK. Interaction effects showed that the negative association between non-standard work and formal childcare was stronger in the Netherlands, compared with Finland. Also, the positive association between working hours and formal childcare was weaker for Dutch and British parents. This study identified the challenges that parents face when arranging childcare outside of office hours. Although the supply of formal childcare seems to be insufficient, using informal childcare introduces other potential problems. Because a considerable proportion of employees work non-standard hours, governments should help these parents in meeting their need for high quality childcare.     

Visualising political thinking on the screen: a dialogue between von Trotta’s Hannah Arendt and its protagonist

This article analyses Margarethe von Trotta’s film Hannah Arendt: The Woman Who Saw Banality in Evil through its protagonist’s own writings on visual culture, visibility and invisibility in the context of political thinking. We start by clarifying Arendt’s understanding of political theory as an activity aiming to provoke thinking. We then discuss systematically the visual language of the film and offer a typology of its representations of political thinking, subdivided into a part on internalisation and one on externalisation (dialogue). We emphasise von Trotta’s reliance on a negative approach, i.e. the representation of thinking through the absence of any other activity while thinking, capitalising on the power of the invisible. However, the film and its director do not entirely succeed in engaging viewers politically. This is so because, first, the film’s lack of conceptual innovation renders difficult the emergence of subject positions on the part of viewers other than consumers of established opinion. Secondly, the film insufficiently audio-visualises the external-communicative dimension of Arendt’s political thinking: a dialogue in which viewers can participate and in the course of which what seemed to be established through political thinking gets deconstructed and subsequently re-ordered. Finally, we emphasise the importance of a cinema of thinking in our current political environment that seems to be increasingly characterised precisely by the absence of political thinking.     

Fitting Generalized Hyperbolic processes - New insights for generating initial values

The fitting of Lévy processes is an important field of interest in both option pricing and risk management. In literature, a large number of fitting methods requiring adequate initial values at the start of the optimization procedure exists. A so-called simplified method of moments (SMoM) generates by assuming a symmetric distribution these initial values for the Variance Gamma process, whereby the idea behind can be easily transferred to the Normal Inverse Gaussian process. However, the characteristics of the Generalized Hyperbolic process prevent such an easy adaption. Therefore, we provide by applying a Taylor series approximation for the modified Bessel function of the third kind, a Tschirnhaus transformation and a symmetric distribution assumption, a SMOM for the Generalized Hyperbolic distribution. Our simulation study compares the results of our SMoM with the results of the maximum likelihood estimation. The results show that our proposed approach is an appropriate and useful way for estimating Generalized Hyperbolic process parameters and significantly reduces estimation time.     

Sad and Lonely? Sad Mood Suppresses Facial Mimicry

The aim of the current study was to investigate the influence of happy and sad mood on facial muscular reactions to emotional facial expressions. Following film clips intended to induce happy and sad mood states, participants observed faces with happy, sad, angry, and neutral expressions while their facial muscular reactions were recorded electromyografically. Results revealed that after watching the happy clip participants showed congruent facial reactions to all emotional expressions, whereas watching the sad clip led to a general reduction of facial muscular reactions. Results are discussed with respect to the information processing style underlying the lack of mimicry in a sad mood state and also with respect to the consequences for social interactions and for embodiment theories.     

Progression-free survival in oncological clinical studies: Assessment time bias and methods for its correction

Progression-free survival (PFS) is a frequently used endpoint in oncological clinical studies. In case of PFS, potential events are progression and death. Progressions are usually observed delayed as they can be diagnosed not before the next study visit. For this reason potential bias of treatment effect estimates for progression-free survival is a concern. In randomized trials and for relative treatment effects measures like hazard ratios, bias-correcting methods are not necessarily required or have been proposed before. However, less is known on cross-trial comparisons of absolute outcome measures like median survival times. This paper proposes a new method for correcting the assessment time bias of progression-free survival estimates to allow a fair cross-trial comparison of median PFS. Using median PFS for example, the presented method approximates the unknown posterior distribution by a Bayesian approach based on simulations. It is shown that the proposed method leads to a substantial reduction of bias as compared to estimates derived from maximum likelihood or Kaplan–Meier estimates. Bias could be reduced by more than 90% over a broad range of considered situations differing in assessment times and underlying distributions. By coverage probabilities of at least 94% based on the credibility interval of the posterior distribution the resulting parameters hold common confidence levels. In summary, the proposed approach is shown to be useful for a cross-trial comparison of median PFS.     

A Swiss Longitudinal Study of the Prevalence of,and Overlap Between,Sexual Problems in Men and Women Aged 20 to 50 Years Old

The aim of this study was to obtain data on the development and course of sexual problems and their interrelationships by investigating a representative sample of men and women over a period of 30 years. A representative sample of 299 women selected from the complete electoral register and 292 men selected from screening lists for military service in Zurich, Switzerland, answered questions about their sexuality as part of a series of seven interviews between ages 20 (1979) and 50 (2008). Of the initial sample of 591 participants, 43% (57% of them male) were lost to follow-up. Interviews were conducted using the Structured Psychopathological Interview and Rating of the Social Consequences of Psychological Disturbances for Epidemiology (SPIKE), a semistructured interview. Sexual problems were identified on the basis of the study participants’ self-appraisal. One-year prevalence rates, lifetime risks, and overlap of functional, emotional, and sexual desire problems in men and women were evaluated. The findings confirmed higher lifetime risks in women than in men for any sexual problem (females 67.0%; males 46.0%) and for functional (39.3%; 22.1%), emotional (35.7%; 15.9%), and sexual desire problems (51.6%; 33.3%). While in general men's sexual problems increased with age, no such association was observed in women. The overlap of all three problems (functional, emotional, and sexual desire) was reported by 16.9% of women but only 5.0% of men. Although there are commonalities, the type but also the development and, in particular, the overlap of sexual problems in women and men are markedly different.