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Researchers and theorists offer a strong base of research in physical activity for high risk groups, particularly sedentary children, adults, and the elderly. Little research examines the lifelong healthy movement behaviors of former competitive athletes. This paper raises some important questions relevant to this population, in particular the disturbing, yet limited research pointing to a serious failure of former competitive athletes to necessarily live longer, healthier, and more physically active lives. The scarce research that seems to highlight this neglected problem is outlined and hypotheses that may contribute to this phenomenon are offered and categorized in the following three sections: atypical physical behaviors found in the sporting realm, utilitarian uses of physical activity, and the long-term consequences of athletic identity. Suggestions are offered to direct future research and to implement practical intervention strategies and educational programs.  相似文献   
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We have previously reported that microthrottle pumps (MTPs) display the capacity to pump solid phase suspensions such as polystyrene beads which prove challenging to most microfluidic pumps. In this paper we report employing a linear microthrottle pump (LMTP) to pump whole, undiluted, anticoagulated, human venous blood at 200 μl min(-1) with minimal erythrocyte lysis and no observed pump blockage. LMTPs are particularly well suited to particle suspension transport by virtue of their relatively unimpeded internal flow-path. Micropumping of whole blood represents a rigorous real-world test of cell suspension transport given blood's high cell content by volume and erythrocytes' relative fragility. A modification of the standard Drabkin method and its validation to spectrophotometrically quantify low levels of erythrocyte lysis by hemoglobin release is also reported. Erythrocyte lysis rates resulting from transport via LMTP are determined to be below one cell in 500 at a pumping rate of 102 μl min(-1).  相似文献   
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This article outlines the findings from an Economic and Social Research Council funded research project that investigated the impact of multi‐agency working on children and their families. It explored the ways in which young people experience multi‐agency working and it investigated whether young people perceive any benefits from a coordinated approach to frontline service delivery. The in‐depth, qualitative study focused on a cross‐section of five local authorities and collected data through semi‐structured interviews with young people and their parents. The study found that where multi‐agency working is effectively integrated and where different professional services are streamlined, there is evidence of a positive impact on young people and their families.  相似文献   
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This article explores the use of an evaluation model of learning and development utilizing formative, summative, and confirmative steps, along with a framework for developing evaluation tools aligned with organizational change goals. A case study is presented in which formative, summative, and confirmative evaluations were used to assess materials and learners following implementation of a new performance management process, tools, and supporting training. A specific model for developing evaluation tools and techniques is introduced as a way to integrate the evaluation process with the specific content of a learning and development intervention, as well as link to higher‐order cultural change goals. Results of the case study suggest that evaluation tools can provide evidence of improvement and target areas for further work. Recommendations are provided for the researcher or practitioner interested in applying the same or similar models to evaluation.  相似文献   
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Increased technology use by college-age students (millennials) has created problems for the acting classroom. Constantin Stanislavski's technique is still the standard, but students arrive to campus unready or unable to engage in his methods or with each other, so new approaches are required. Classroom exercises are provided, many inspired by current social-science research.  相似文献   
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