Trajectories of Depressed Mood From Early Adolescence to Young Adulthood: The Effects of Pubertal Timing and Adolescent Dating

The effects of pubertal timing and adolescent dating on trajectories of depressed mood from early adolescence to young adulthood were examined among youths who participated in the National Longitudinal Study of Adolescent Health. Results showed that for both boys and girls, the trajectories of depressed mood between the ages of 12 and 23 took an inverse U‐shape with its peak in mid‐adolescence. Furthermore, pubertal timing was a significant predictor of depressed mood at age 12. The pubertal timing effect was nonlinear, suggesting that at age 12, early and late maturing youths were at risk of experiencing elevated levels of depressed mood. The adverse effect of off‐time maturation gradually dissipated over time. Moreover, in early adolescence, teenagers, particularly girls, were adversely affected by dating, and off‐time physical maturation exacerbated the negative effects of dating. However, the interactive effect of dating and pubertal timing gradually decreased with age. Our findings underscore the importance of examining junctures of biological and social challenges in adolescence to gain better understandings of young people's emotional experiences over time.     

Inter-Group Aggression in New Orleans in the Immediate Aftermath of Hurricane Katrina

In the aftermath of Hurricane Katrina, the city of New Orleans witnessed an emerging conflict between the residents who survived the storm and the rescuers charged with assisting them. This particular type of inter-group conflict has not been documented before, as it uniquely entails survivors acting against their very self-interest, and rescuers subverting their helping roles. We argue that Drury and Reicher's Elaborated Social Identity Model explains the nature of the inter-group aggression. Drawing on published first-person accounts, we document how the power differential between rescuers and survivors shaped inter-group perceptions and eventually rendered inter-group aggression acceptable. While inter-group aggression reflects only one facet of the aftermath of Katrina, we conclude that it must be interpreted as meaningful social action commensurate with the groups' emerging collective identities.     

经济危机正当时？

4月的一个下午,成百上千的求职者挤在北京港澳中心,他们来自英国、奥地利、巴基斯坦或者美国。谈笑间,他们充满期待。他们的积极隋绪与笼罩自己祖国的阴霾形成鲜明的对比,那里的经济正遭受着几十年来最严重的衰退。     

The Impact of Child Behaviour Problems on Maternal Employment: A Longitudinal Cohort Study

This prospective population-based study examined associations between children’s behaviour problems and maternal employment. Information on children’s behaviour problems at 3 years from 22,115 mothers employed before pregnancy and participating in the Norwegian Mother and Child Cohort Study were linked to national register data on employment and relevant social background factors, mothers’ self-reported susceptibility to anxiety/depression and mother-reports of day-care attendance and fathers’ income. Mothers reporting their child to have severe (>2 SD) internalizing or severe combined behaviour problems (5 %) had excess risk of leaving paid employment irrespective of other important characteristics generally associated with maternal employment (RR 1.24–1.31). The attributable risk percent ranged from 30.3 % (internalizing problems) to 32.4 % (combined problems). Externalizing behaviour problems were not uniquely associated with mothers leaving employment.     

Daily rhythm of salivary IL-1ß, cortisol and melatonin in day and night workers

Shiftwork-induced sleep deprivation and circadian disruption probably leads to an increase in the production of cytokines and dysregulation of innate immune system, respectively. This project aims evaluating changes in salivary IL-1 beta, cortisol, and melatonin in night workers. Method. Two day and three night healthy workers participated in this study. Sleep was evaluated by actimetry and activity protocols. Saliva was collected at waking and bedtime the last workday and the following two days-off and was analyzed by ELISA. Results. Neither sleep duration nor efficiency showed any association with salivary IL-1beta. IL-1beta levels were higher at waking than at bedtime during working days for all workers, but only one day and one night-worker maintained this pattern and hormone rhythms during days off. For this night worker, melatonin levels were shifted to daytime. A second one presented clear alterations in IL-1beta and hormone rhythms on days-off. Conclusions. Our preliminary results suggest that night work can disturb the variation pattern of salivary IL-1beta. No association of this variation with sleep was observed. It seems that disruption in hormone rhythms interfere with salivary IL-1beta production. IL- 1beta production pattern seems to be maintained when rhythms are present, in spite of a shift in melatonin secretion.     

The wild bootstrap for multivariate Nelson–Aalen estimators

Lifetime Data Analysis - We rigorously extend the widely used wild bootstrap resampling technique to the multivariate Nelson–Aalen estimator under Aalen’s multiplicative intensity...     

Share the Burden or Pass it on?

There are numerous explanations for why Tanzania withdrew from the CRRF (Comprehensive Refugee Response Framework). Being aware that the decision was the sum of multiple coinciding factors the article argues that the decisive features were, firstly, a failed dialogue about the basis and the goals of CRRF between the Tanzanian government and the UN (United Nations); secondly, a disillusion on the Tanzanian side related to the history of international cooperation on refugee issues; and thirdly, a perceived contradiction between the goals of the CRRF and domestic policies, specifically in relation to the agenda of national sovereignty propagated by the incumbent Tanzanian government. Numerous publications on the New York declaration, the CRRF, and the GCR (Global Compact on Refugees) have portrayed the evolution of ideas, principles, and political compromises in question. Yet few analyses highlight which core messages were received on the ground or what impact they had on the very people concerned. This article, therefore will touch only briefly on declarations and statements of the UN and instead focus on a bottom‐up perspective.