Social cohesion revisited: a new definition and how to characterize it

This paper provides a general overview on different perspectives and studies on social cohesion, offers a definition of social cohesion that is deeply rooted in current literature, and provides a framework that can be used to characterize social cohesion and help support resilient cities. The framework highlights the factors that play a substantial role in enabling social cohesion, and shows from which perspectives it can be fostered.     

Prenatal risk and physical aggression during the first years of life: The gender‐specific role of inhibitory control

Prenatal risk and a lack of inhibitory control have consistently been related to the development of physical aggression in older children. This study examined whether inhibitory control mediated the relation between prenatal risk and aggression in infants and toddlers. The role of gender in this mediation model was also examined. The sample consisted of 161 mother–child dyads (83 boys). A prenatal cumulative risk score was created from a number of well‐established risk factors including maternal psychopathology, substance use, and social and socioeconomic disadvantages. At 12 months, children performed an inhibitory control task. Physical aggression was assessed through maternal reports at 12 and 20 months of age. Results showed that higher prenatal risk was associated with more physical aggression. Inhibitory control mediated this association at both 12 and 20 months: higher prenatal risk was related to lower inhibitory control, which in turn led to higher aggression. At 20 months, gender moderated the mediation effect: the mediating role of inhibitory control was only found for girls. These results suggest that even before 2 years of age, inhibitory control is an important construct involved in the relation between prenatal risk and physical aggression.     

Reviews

ANOTHER RUSSIA Through the Eyes of the New Soviet Photographers: A Lesson in Looking and Not Seeing Facts on File, 1986

Camera Culture, by Halla Beloff

Poletown Lives! Film/Videotape: 52 mins.

Exploding Into Life, by Dorthea Lynch and Eugene Richards

Documentary Filmmaking: A Closer Look A Seminar

Videology and Utopia: Explorations in a New Medium A. Willener, G. Milliard, and A. Ganty     

The perceived fair duration of unemployment benefits for older workers. The role of lifetime achievements in the labour market

The welfare state regulates social policies and reallocates scarce resources. For the social legitimacy of the welfare state, it is important that the public supports the principles underlying this reallocation. This article examines the impact of different activities during the life course on public deservingness perceptions of older unemployed people. In a factorial survey experiment conducted among a random sample of individuals drawn from German administrative employment records, we examine the maximum duration of benefit receipt which is perceived as fair for older unemployed persons with different biographies. The results indicate strong public support for a nexus between previous contributions and benefit entitlements. Besides financial contributions to unemployment insurance, parenting and further training are considered to be ‘lifetime achievements’ which justify longer unemployment benefit receipt. We interpret these findings as an expression of a generalised form of reciprocity which guides perceptions of deservingness regarding older unemployed persons.     

Assessing goodness-of-fit for evaluation of dose-proportionality

For the clinical development of a new drug, the determination of dose-proportionality is an essential part of the pharmacokinetic evaluations, which may provide early indications of non-linear pharmacokinetics and may help to identify sub-populations with divergent clearances. Prior to making any conclusions regarding dose-proportionality, the goodness-of-fit of the model must be assessed to evaluate the model performance. We propose the use of simulation-based visual predictive checks to improve the validity of dose-proportionality conclusions for complex designs. We provide an illustrative example and include a table to facilitate review by regulatory authorities.     

Redescending M-estimators

In finite sample studies redescending M-estimators outperform bounded M-estimators (see for example, Andrews et al. [1972. Robust Estimates of Location. Princeton University Press, Princeton]). Even though redescenders arise naturally out of the maximum likelihood approach if one uses very heavy-tailed models, the commonly used redescenders have been derived from purely heuristic considerations. Using a recent approach proposed by Shurygin, we study the optimality of redescending M-estimators. We show that redescending M-estimator can be designed by applying a global minimax criterion to locally robust estimators, namely maximizing over a class of densities the minimum variance sensitivity over a class of estimators. As a particular result, we prove that Smith's estimator, which is a compromise between Huber's skipped mean and Tukey's biweight, provides a guaranteed level of an estimator's variance sensitivity over the class of densities with a bounded variance.