Psychological benefits of weight loss following behavioural and/or dietary weight loss interventions. A systematic research review

It is generally accepted that weight loss has significant physiological benefits, such as reduced risk of diabetes, lowered blood pressure and blood lipid levels. However, few behavioural and dietary interventions have investigated psychological benefit as the primary outcome. Hence, systematic review methodology was adopted to evaluate the psychological outcomes of weight loss following participation in a behavioural and/or dietary weight loss intervention in overweight/obese populations. 36 Studies were selected for inclusion and were reviewed. Changes in self-esteem, depressive symptoms, body image and health related quality of life (HRQoL) were evaluated and discussed. Where possible, effect sizes to indicate the magnitude of change pre- to post- intervention were calculated using Hedges’ g standardised mean difference. The results demonstrated consistent improvements in psychological outcomes concurrent with and sometimes without weight loss. Improvements in body image and HRQoL (especially vitality) were closely related to changes in weight. Calculated effect sizes varied considerably and reflected the heterogeneous nature of the studies included in the review. Although the quality of the studies reviewed was generally acceptable, only 9 out of 36 studies included a suitable control/comparison group and the content, duration of intervention and measures used to assess psychological outcomes varied considerably. Further research is required to improve the quality of studies assessing the benefits of weight loss to fully elucidate the relationship between weight loss and psychological outcomes.The Kellogg Company, The Kellogg Building, Talbot Road, Manchester M16 0PU, U

A transmission spectrum of the sub-earth planet L98-59 b in 1.1-1.7 micron

Stars and planetary system

Diving into the vertical dimension of elasmobranch movement ecology

Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements

Guidance on the application of quality assurance for characterizing a low-level radioactive waste disposal site

This document provides the Nuclear Regulatory Commission's staff guidance to an applicant on meeting the quality control (QC) requirements of Title 10 of the Code of Federal Regulations, Part 61, Section 61.12 (10 CFR 61.12), for a low-level waste disposal facility. The QC requirements combined with the requirements for managerial controls and audits are the basis for developing a quality assurance (QA) program and for the guidance provided herein. QA guidance is specified for site characterization activities necessary to meet the performance objectives of 10 CFR Part 61 and to limit exposure to or the release of radioactivity. 1 tab

A Meta-Analytic Review of the Common-Sense Model of Illness Representations

A meta-analysis of empirical studies (N = 45) adopting Leventhal, Meyer and Nerenz's (1980) Common Sense Model (CSM) of illness representations is presented. The average corrected intercorrelation matrix for the sample of studies showed that the CSM illness cognition dimensions of consequences, control/cure, identity and timeline followed a logical pattern supporting their construct and discriminant validity across illness types. A content analysis classified coping strategies into seven distinctive categories and health outcomes into six categories. Examining the average corrected correlation coefficients across the studies revealed that perceptions of a strong illness identity were significantly and positively related to the use of coping strategies of avoidance and emotion expression. In addition, perceived controllability of the illness was significantly associated with cognitive reappraisal, expressing emotions and problem-focused coping strategies. Perceptions of the illness as highly symptomatic, having a chronic timeline and serious consequences was significantly correlated with avoidance and expressing emotions coping strategies. Further, perceptions that the illness was curable/controllable was significantly and positively related to the adaptive outcomes of psychological well-being, social functioning and vitality and negatively related to psychological distress and disease state. Conversely, illness consequences, timeline and identity exhibited significant, negative relationships with psychological well being, role and social functioning and vitality. The analyses provide evidence for theoretically predictable relations between illness cognitions, coping and outcomes across studies