Adolescent development encompasses an ostensible paradox in threat processing. Risk taking increases dramatically after the onset of puberty, contributing to a 200% increase in mortality. Yet, pubertal maturation is associated with increased reactivity in threat-avoidance systems. In the first part of this paper we propose a heuristic model of adolescent affective development that may help to r...

Adolescents' peer culture plays a key role in the development and maintenance of risk-taking behavior. Despite recent advances in developmental neuroscience suggesting that peers may increase neural sensitivity to rewards, we know relatively little about how the quality of peer relations impact adolescent risk taking. In the current 2-year three-wave longitudinal study, we examined how chronic ...

Risk taking is often associated with creativity, yet little evidence exists to support this association. The present article aimed to systematically explore this association. In two studies, we investigated the relationship between five different domains of risk taking (financial, health and safety, recreational, ethical and social) and five different measures of creativity. Results from the fi...

Introduction: Immunization has been shown to be the most successful and cost-effective public health intervention in the 20 century. In the developing world, it does not only prevent about three million child deaths annually, but also has the potential to prevent additional two million deaths if coverage improves. However, immunization coverage has remained low in Nigeria although vaccines are ...

Children show great differences in their ways of appraising threat, seeking help, and expressing emotions when facing traumatic events. This chapter focuses on developmental and personality aspects of trauma responses. It is hypothesized that each developmental age provides children unique protecting resources, on one hand, and makes them vulnerable, on the other. These protecting and risk dyna...

The spectral properties of the adjacency matrix, in particular its largest eigenvalue and the associated principal eigenvector, dominate many structural and dynamical properties of complex networks. Here we focus on the localization properties of the principal eigenvector in real networks. We show that in most cases it is either localized on the star defined by the node with largest degree (hub...

Can activation requirements control moral hazard problems in public sickness absence insurance and accelerate recovery? Based on empirical analysis of Norwegian data, we show that it can. Activation requirements not only bring down benefit claims, they also reduce the likelihood that long-term sickness absence leads to inactivity. Our findings show that absentees who are issued graded (partial)...

ion Sheets unterstützen die genaue Analyse eines Ziels [vSB99]. Sie dienen insbesondere als Kommunikationsmittel zwischen den Beteiligten. In einem Abstraction Sheet werden die folgenden Elemente erfasst: • von den Projektbeteiligten vorgeschlagene Metriken, um die Zielerreichung zu messen, • eine Hypothese über die erwarteten Ergebnisse, • mögliche Ein ussfaktoren auf das Ergebnis in dem betra...