Effects of a self-regulation intervention on exercise are moderated by depressive symptoms: A quasi-experimental study

This study investigated whether a computer-based self-regulation intervention increases physical exercise in individuals with or without depressive symptoms. A total of 361 individuals in orthopedic rehabilitation, 36 of them with depressive symptoms, were recruited in Germany. In a quasi-experimental study, individuals were allocated to either a computer-based self-regulation intervention or an online questionnaire. Exercise was measured at the beginning of rehabilitation and six weeks after rehabilitation. Depressive symptoms were assessed at the end of rehabilitation. An analysis of covariance was conducted, controlling for exercise baseline, sex, and phase of assessment. A main effect for depressive symptoms (p = .005) and intervention group (p = .011), as well as a marginal interaction of intervention x depressive symptoms were found (p = .076). Results indicate that the self-regulation exercise intervention in an orthopedic rehabilitation setting seem to be only effective in non-depressed individuals. Future research should examine how health behavior change programs can be designed more effectively for individuals with depressive symptoms.     

Benefits to the Spanish research community of regional content expansion in Web of Science

The regional content expansion of Thomson Reuters (formerly ISI) Web of Science added approximately 1,600 journals to the database with a regional as opposed to international focus. Web of Science coverage has grown to reflect the changing nature of global research publication trends and the additional regional journals provide greater visibility to high quality local studies beyond their traditional boundaries. The cited references indexed from the regional journals represent the influence of those journals on both the global and local research communities. This study analyses the impact of adding Spanish regional journals to Web of Science on the publication and citation patterns of Spanish research. The findings demonstrate a recent increase in research output from Spain and this is explained by more Spanish research being produced rather than due to the indexing of more Spanish journals; indeed it is shown that the majority of Spanish research is not published in Spanish journals. An analysis of Spanish journal citations uncovers a Spanish regional citation network previously undetected and serves as valuable information for evaluators of Spanish journals.     

The new multidimensional and user-driven higher education ranking concept of the European Union

Higher education rankings constitute a important but controversial topic due to the methodologies applied in existing rankings and to the use being done of these interpreting their results for purposes which they were not designed for. At present there is no international ranking can responds to the needs of all users and that is methodologically sound by considering the various missions of higher education institutions, mainly due to a narrow focus on research giving less importance to other missions in which higher education institutions can excel beyond research such as teaching quality, knowledge transfer, international orientation, regional engagement etc. The European Commission is currently involved in the implementation of a new higher education ranking methodology, characterised by taking into account a diversity of missions and the diversity of existing higher education institutions. The final aim is to create a tool allowing users to choose the performance indicators of their interest and providing them with a personalised ranking according to their interests. This paper describes the motivation for designing such a tool, the principles of the methodology proposed, as well as the steps foreseen to have it ready for end users by 2014.     

Embedding Logics into Product Logic

We construct a faithful interpretation of ukasiewicz's logic in product logic (both propositional and predicate). Using known facts it follows that the product predicate logic is not recursively axiomatizable.We prove a completeness theorem for product logic extended by a unary connective of Baaz [1]. We show that Gödel's logic is a sublogic of this extended product logic.We also prove NP-completeness of the set of propositional formulas satisfiable in product logic (resp. in Gödel's logic).     

Evidence for Free Radical-Mediated Reduction of Lymphocytic 5′-Ectonucleotidase During Stress

Previously we showed that stress and depression could result in a 50% lowering of lymphocytic 5-ectonucleotidase (NT) which could be resolved by a diet high in antioxidants. This study suggested that high levels of free radicals mediated by stress/depression may be involved in lowering NT activities. The aim of the present study was to assess whether oxygen radicals could directly affect NT and whether excess free radicals generated in stress/depression may affect tissue ascorbate stores. Exam-stressed students and depressed patients were compared respectively to these students at low stress and depressed patients on high antioxidant intakes. In this study, NT correlated positively with tissue ascorbate stores. A range of antioxidants were tested as possible inhibitors of oxy radical interaction with NT using nitroblue tetrazolium reduction to for-mazan with superoxide anion. At physiological plasma concentrations, ascorbate inhibited this reduction but dehydroascorbate, tocopherol, retinol, selenium, urate, and reduced glutathione were ineffective. Superoxide anion directly reduced lymphocytic NT activity and this effect was reversed by either 100 molar ascorbate in vitro or a high antioxidant intake in vivo. In conclusion, the low NT activities and ascorbate stores found in stressed/depressed people appear to be mediated by higher levels of free radicals reported in these subjects. These conclusions are consistent with published reports of (1) normal NT levels in melancholic patients on high antioxidant diets; (2) heightened inflammatory reponses during stress/depression; (3) low serum levels of zinc in depressed patients.     

Mothers’ Dreams,Children Realities: The Case of Uprooted Families from South Lebanon

In this exploratory qualitative study, 15 mothers and 18 adolescents who, as family members of the South Lebanon Army, were uprooted from that country and now living in Israel, were interviewed separately. The mothers described their image of the adaptive adult, which stressed the positive values of loyalty to the family, orientation toward the group, respect, and acceptance of hierarchy and guided their child‐rearing goals and socialization. The children shared similar attitudes about the importance of family loyalty and orientation toward the group, but differed from their mothers with regard to the issues of respect and obedience. We discussed the notion of “liminality,” to further our understanding of the families in transition and suggest how it applies to the uprooted members of South Lebanon army. We suggest that different time orientations and contextual factors influence the participating mothers’ image of the adaptive adult and the degree to which their children accept it. Implications for research and interventions are also explored.     

An Evolutionary Perspective on Family Studies: Differential Susceptibility to Environmental Influences

An evolutionary perspective of human development provides the basis for the differential‐susceptibility hypothesis which stipulates that individuals should differ in their susceptibility to environmental influences, with some being more affected than others by both positive and negative developmental experiences and environmental exposures. This paper reviews evidence consistent with this claim while revealing that temperamental and genetic characteristics play a role in distinguishing more and less susceptible individuals. The differential‐susceptibility framework under consideration is contrasted to the traditional diathesis‐stress view that “vulnerability” traits predispose some to being disproportionately affected by (only) adverse experiences. We raise several issues stimulated by the literature that need to be clarified in further research. Lastly, we suggest that therapy may differ in its effects depending on an individual's susceptibility.