Positive and Negative Emotions: Differential Associations with Sleep Duration and Quality in Adolescents

Despite positive and negative emotions being equally important predictors of adolescent wellbeing, research examining positive emotions is limited. In 4582 adolescents (69.4% females; age M?±?SD?=?14.55?±?1.74 years), we used structural equation modelling to examine associations between self-reported sleep duration and quality with positive affect, negative affect, and happiness, controlling for age and sex. Overall, sleep quality displayed stronger associations with all measures of emotions compared to sleep duration. Shorter sleep was more specifically associated with lower positive emotions (happiness, followed by positive affect), whereas poorer sleep showed stronger associations with negative affect. Protecting sleep duration may promote positive emotions and enhancing sleep quality may reduce mood disturbances. Future research could incorporate both positive and negative emotions to better understand adolescents’ wellbeing.     

Negotiating Proximity: Expert Testimony and Collective Memory in the Trials of Environmental Activists in France and the United Kingdom

This article analyzes the role of expert witness testimony in the trials of social movement actors, discussing the trial of the “Kingsnorth Six” in Britain and the trials of activists currently mobilising against airport construction at Notre Dame des Landes in western France. Though the study of expert testimony has so far overwhelmingly concentrated on fact‐finding and admissibility, the cases here reveal the importance of expert testimony not simply in terms of legal argument, but in “moral” or political terms, as it reflects and constitutes movement cognitive praxis. In the so‐called climate change defence presented by the Kingsnorth Six, I argue that expert testimony attained a “negotiation of proximity,” connecting different types of contributory expertise to link the scales and registers of climate science with those of everyday understanding and meaning. Expert testimony in the trials of activists in France, however, whilst ostensibly able to develop similar bridging narratives, has instead been used to construct resistance to the airport siting as already proximate, material, and embedded. To explain this, I argue that attention to the symbolic, as well as instrumental, functions of expert testimony reveals the crucial role that collective memory plays in the construction of both knowledge and grievance in these cases. Collective memory is both a constraint on and catalyst for mobilisation, defining the boundaries of the sayable. Testimony in trials both reflects and reproduces these elements and is a vital explanatory tool for understanding the narrativisation and communication of movement identities and objectives.     

US Presidential popularity and opportunities to coerce North Korea: a quantitative test 1990 2000

This paper investigates how North Korean behaviour towards boththe United States and South Korea is influenced by the popularityof the American President. The study applies theories relatingto strategic conflict avoidance and signalling to suggest thatthe American President is able to demonstrate a willingnessto use force when he is unpopular and as such is better ableto coerce Pyongyang. Using a time-series model, I demonstratethat the North Koreans become more cooperative towards the UnitedStates in response to decreases in presidential popularity andincreasing levels of US inflation. However, the study also showsthat the North Koreans do not alter their behaviour towardsthe South Koreans in response to low American President Popularityratings. The research, therefore, suggests that the North Koreansbelieve that the United States would be unable to launch a diversionaryattack in response to North Korean behaviour towards the South.This study provides a clear support for the strategic avoidanceof conflict hypothesis and suggests that the American Presidentsare best able to coerce North Korea when they are unpopularat home. Received for publication August 31, 2005. Accepted for publication December 21, 2005.     

The risky business of public–private partnerships

Public–private partnerships (PPPs) are now a common strand of third way government policy, with better efficiency promised from the private funding of public infrastructure through the transfer of risks to private parties. This paper aims to investigate, on an empirical basis, the realities of risk transfers in PPPs and compare this experience against both the rhetoric of project proponents and the formal contract conditions. The paper outlines some conceptual frameworks underpinning PPPs and establishes the notions of risk shifting and risk sharing. The range of typical risks encountered in infrastructure projects is specially considered, and differences to traditional project delivery arrangements are articulated. Some empirical experience on the transfer of risks under PPPs is then outlined through a case study. This analysis shows the extent to which risks were shifted to the private parties as planned, or whether risks remained with government. It is argued that while commercial risks were largely well managed, governance risks were not. It is critical to understand better the nature of risk transfers in PPPs in view of the large financial implications of these deals along with long contract terms.