The role of mitochondria in conserved mechanisms of aging

The European research project MiMage, supported by the European Community's Sixth Framework for Research and Technological Development, focuses on elucidating the role of mitochondria in conserved mechanisms of aging. This Perspective summarizes a selection of talks presented in April 2006 at the second MiMage symposium by members from participating laboratories and invited speakers.     

American political affiliation, 2003-43: a cohort component projection

The recent rise in identification with American political parties has focused interest on the long-term dynamics of party support. Liberal commentators cite immigration and youth as forces that will produce a natural advantage for the Democrats in the future, while conservative writers highlight the importance of high fertility amongst Republicans in securing growth. These opinions are not based on demographic analysis. We addressed this omission by undertaking the first ever cohort component projection (up to 2043) of populations by American party allegiance, based on survey and census data. On current trends, we predict that American partisanship will change much less than the nation's ethnic composition because the parties are similar in age structure. Nevertheless, our projections suggest that the Democrats will gain 2-3 per cent more support than the Republicans by 2043, mainly through immigration, although the higher fertility of Republicans may eventually offset that advantage.     

The Partisan Paradox: Religious Commitment and the Gender Gap in Party Identification

A large body of scholarly literature points to the growing influenceof religious devotion on U.S. partisanship. This article attemptsto reconcile the growing religious commitment cleavage in theAmerican party system with the commensurate growth in the gendergap. If women are, on average, more religiously devout thanmen, and if contemporary shifts in partisanship are disproportionatelyfounded on religious and cultural cleavages, then why are womenmore likely to identify with the Democratic Party? I pose threepossible explanations for this apparent paradox: (1) that theinfluence of religion is only considerable among the most committed;(2) that men and women politicize their religious beliefs indifferent ways; and (3) that gender differences in opinion onnonreligious issues sustain the partisan gap, over and abovethe conservative influence of religiosity. Findings from structuralequation analyses demonstrate that religious devotion affectsthe politics of men and women in similar ways. Religious commitmentaffects partisan choices but does not override the powerfuleffects of gender. Gender differences in support for the socialwelfare state and the preeminence of social welfare opinionin the partisan calculus of men and women largely explain thepersistence of the gender gap.     

Stress reactions after bank robberies: Psychological and psychosomatic reaction patterns

Within a broad investigation of 221 employees reporting psychological problems after experiencing robberies in banks, data were collected on the nature and distribution of different stress symptoms. This paper deals with a factor analysis of this material as well as with a study of possible differences concerning the ability of the employees to remember these symptoms. No such differences in memory could be found in terms of time elapsed since the robbery. However, women did report more symptoms than men. The factor analysis showed that the symptoms could be described by defined groups in such a way as to present the possibility of meaningful theoretical interpretations of those groupings.     

Perception of Mobile Phone and Base Station Risks

Perceptions of risks associated with mobile phones, base stations, and other sources of electromagnetic fields (EMF) were examined. Data from a telephone survey conducted in the German- and French-speaking parts of Switzerland are presented (N = 1,015). Participants assessed both risks and benefits associated with nine different sources of EMF. Trust in the authorities regulating these hazards was assessed as well. In addition, participants answered a set of questions related to attitudes toward EMF and toward mobile phone base stations. According to respondents' assessments, high-voltage transmission lines are the most risky source of EMF. Mobile phones and mobile phone base stations received lower risk ratings. Results showed that trust in authorities was positively associated with perceived benefits and negatively associated with perceived risks. People who use their mobile phones frequently perceived lower risks and higher benefits than people who use their mobile phones infrequently. People who believed they lived close to a base station did not significantly differ in their level of risks associated with mobile phone base stations from people who did not believe they lived close to a base station. Regarding risk regulation, a majority of participants were in favor of fixing limiting values based on the worst-case scenario. Correlations suggest that belief in paranormal phenomena is related to level of perceived risks associated with EMF. Furthermore, people who believed that most chemical substances cause cancer also worried more about EMF than people who did not believe that chemical substances are that harmful. Practical implications of the results are discussed.     

The Efficacy of Emotionally Focused Couples Therapy and Behavioral Couples Therapy: A Meta‐Analysis

Behavioral couple therapy (BCT) and emotionally focused couples therapy (EFCT) are well‐established treatments to reduce couple distress. This meta‐analysis summarizes the current state of knowledge on the efficacy of these two therapy methods by focusing on randomized controlled trials only. A literature search revealed 33 suitable primary studies (2,730 participants in total), all of them measuring relationship satisfaction. Robust‐variance random‐effects meta‐analysis revealed medium effect sizes at post‐test (overall: g = 0.60; BCT: g = 0.53; EFCT: g = 0.73) and small effect sizes of 6 months after treatment (overall: g = 0.44; BCT: g = 0.35; EFCT: g = 0.66), but these gains were not maintained after 12 months (BCT only: g = 0.06). Between the two therapy methods, no significant effect size differences could be found. Results have to be interpreted with caution due to potential publication bias.     

Childhood studies,children's politics and participation: perspectives for processes of democratisation

ABSTRACT

From the early Frankfurt School through to the work of Manuel Castells, there has been a rich body of work on the cleavage between technological and social developments of the twentieth century in respect of the consequences for the constitution of subjectivity. However, little attention is paid to the role of children during their childhoods in attempts to bridge this gap beyond discussions about the democratic actors children will become when they are adults. This paper argues that only the full integration of children, during their childhoods, into democratic development of societies will prevent the deepening of the rift between technological and social progress. The paper traces the correspondence between the new childhood studies and those concepts of politics and politicisation which can support social progress towards an emancipatory social perspective undergirded by particular and democratisation of all areas of everyday life. Drawing on Bourdieu and ideas of participation as action, the paper critically examines the various mechanisms by which children are conventionally excluded from democratic participation and then explores how a deeper consideration of agency in childhood and social actorship opens up alternative mechanisms of inclusion and the concomitant expansion of the concept of democracy.