OBESITY AND REPORTS OF NO LEISURE TIME ACTIVITY AMONG OLDER AMERICANS: RESULTS FROM THE THIRD NATIONAL HEALTH AND NUTRITION EXAMINATION SURVEY

Physical inactivity is a cardiovascular risk factor that has a higher prevalence among overweight adults. The purpose of this study was to assess the prevalence of not participating in Leisure Time Physical Activity (LPTA) and the relationship to body weight class among older U.S. adults. A nationally representative cross-sectional survey with an in-person interview and medical examination was used. Between 1988 and 1994, 6569 adults 60 years of age or older responded to the household adult and family questionnaires as part of the National Health and Nutrition Examination Survey III. Mexican Americans and non-Hispanic blacks were oversampled to produce reliable estimates for these groups. Overall, 39% of older U.S. adults fall in the overweight range and 23.3% are obese. Obese older adults were more likely than their overweight and healthy weight counterparts to report participating in no LTPA The prevalence of adults reporting no leisure time physical activity (LPTA) is lowest among non-Hispanic whites compared to non-Hispanic blacks and Mexican-Americans in each body mass index category. Future interventions should address strategies to promote an increase in leisure time physical activity among older adults, especially among underserved populations, and help them to prevent weight gain.     

The experiences of disabled pupils and their families

In this article, Ann Lewis, Professor of Education at the University of Birmingham, and Ian Davison, Jean Ellins, Louise Niblett, Sarah Parsons, Christopher Robertson and Jeremy Sharpe from the research team provide a summary of discussions and selected recommendations arising from four linked projects run between 2004 and 2006. The projects were funded by the Disability Rights Commission (DRC) and looked into the experiences of disabled pupils and their families across England, Scotland and Wales. A central aim of the research was to identify the key concerns and priorities in relation to their experiences of education for children and young people with special educational needs (SEN) or disabilities and their families in the UK. The research encompassed a UK-wide parent survey (N=1776); in-depth case studies of individual children and young people (N=36); group case studies (of, for example, school councils) (N=3); and a series of project advisory groups involving disabled people. Underlying these aspects was an emphasis on the importance and validity of hearing directly from (potentially all) children and young people themselves. Thus the work meshes closely with initiatives worldwide concerning the recognition of children's'voice'in matters that concern them. The authors are not aware of any comparable evidence which focuses in-depth on a wide cross-section of pupils with disabilities or special needs and their families in the UK-wide educational context and which is located alongside concurrent authoritative data concerning the views of parents and carers.     

老年人的体育锻炼与身心健康

本文回顾了近十年来国外有关老年人的体育锻炼与身心健康方面的研究成果,具体讨论了老年人体育锻炼的生理心理效应,老年妇女与体育锻炼,老年人参加体育锻炼的动机以及影响老年人参加和坚持体育锻炼的因素等四个问题。     

Combining ‘subject knowledge’ with ‘how to teach’: an exploratory study of new initial teacher education for teachers of adult literacy,numeracy and English for Speakers of other Languages

This paper is based on a research project that explored a UK Government initiative to improve the quality of teaching adults, numeracy, literacy and English as a second other language. The findings will be of interest to teacher educators generally and also to those involved in teaching adults, language, literacy and numeracy. The paper reports on the main findings of the research and sets the context for the presentation of models and concepts for rethinking how to meet the diverse prior experience and qualifications of those on teacher training programmes, as well as the challenges of relating a deeper understanding of ‘what you teach’ and ‘how you teach it’. Among the many issues raised by this paper, priority is given to the importance of the sequencing and organization of teacher training courses to meet the individual needs of trainees, who in the context of teaching adults in the UK have very different levels of teaching experience, prior subject knowledge and learning needs.     

The effect of task structure on diffusion dynamics: Implications for diffusion curve and network-based analyses

Theoretical analyses within the broad field of social learning research give mixed conclusions on whether the shape of a diffusion curve can be used to infer that a learned trait increases through social or asocial learning. Here we explore how factors such as task structure (e.g., multiple-step tasks), task abandonment, subgoal learning, and neophobia affect the shape of the diffusion curve for both asocially learned and socially learned behavior. We demonstrate that, whereas social learning increases the likelihood of S-shaped curves, sigmoidal patterns can be generated by entirely asocial processes, and cannot be reliably interpreted as indicators of social learning. Our findings reinforce the view that diffusion curve analysis is not a reliable way of detecting social transmission. We also draw attention to the fact that task structure can similarly confound interpretation of network-based diffusion analyses, and suggest resolutions to this problem. Supplemental materials for this article may be downloaded from http://lb.psychonomic-journals.org/content/supplemental.     

大学里的12个高分秘诀

成绩是衡量学生优秀与否的重要标准正如上班族的工资、棒球运动员的击球率、商品的价格一样,学生的成绩是衡量在校表现的一个重要客观指标.本期“直面留学”,我们为您提供了12个得高分的秘诀．希望每位刚踏入大学的读者门门得A.