Short-term reliability of inflammatory mediators and response to exercise in the heat     

Joshua H. Guy  Andrew M. Edwards  Catherine M. Miller  Glen B. Deakin  David B. Pyne 《Journal of sports sciences》2017,35(16):1622-1628

Prospective application of serum cytokines, lipopolysaccharide (LPS), and heat shock proteins (eHSPs) requires reliable measurement of these biomarkers that can signify exercise-induced heat stress in hot conditions. To accomplish this, both short-term (7 day) reliability (at rest, n = 12) and the acute responsiveness of each biomarker to exercise in the heat (pre and post 60-min cycling, 34.5°C and 70% RH, n = 20) were evaluated. Serum was analysed for the concentration of C-reactive protein (CRP), interleukin-6 (IL-6), heat shock protein 72 (eHSP72), immunoglobulin M (IgM) and LPS. Test–retest reliability was determined as the coefficient of variation (CV). Biomarkers with the least short-term within-participant variation were IL-6 (19%, ±20%; CV, ±95% confidence limits (CL)) and LPS (23%, ±13%). Greater variability was observed for IgM, eHSP72 and CRP (CV range 28–38%). IL-6 exhibited the largest increase in response to acute exercise (95%, ±11%, P = < 0.001) and although CRP had a modest CV (12%, ±7%), it increased substantially post-exercise (P = 0.02, ES; 0.78). In contrast, eHSP72 and LPS exhibited trivial changes post-exercise. It appears variation of common inflammatory markers after exercise in the heat is not always discernible from short-term (weekly) variation.  相似文献   

Guideposts and Roadblocks to the Career-Long Scholarly Engagement of Physical Education Teacher Education Faculty     

Catherine P. Berei  Erica Pratt  Melissa Parker  Kevin Shephard  Tanjian Liang  Udon Nampai 《Research quarterly for exercise and sport》2017,88(4):455-467

Purpose: Scholarship is essential for the growth and development of the physical education field. Over time, scholarship expectations have changed, forcing faculty members to alter time spent for research, teaching, and service. Social-cognitive career theory (SCCT) presents a model for understanding performance and persistence in an occupational environment. The interconnected aspects of SCCT have different emphasis related to self-efficacy, outcome expectations, or personal goals pursuit. This study explored physical education teacher education (PETE) faculty members’ continuing engagement in scholarly activity through SCCT. Method: Data collection included interviews with 9 senior PETE faculty members who met the criteria for “productive scholars over time.” Curriculum vitae were collected to verify productivity. Results: Data analysis revealed guidepost themes that included collaborating, finding balance, defining a research process, and maintaining a strong work ethic. Roadblocks encountered included other obligations and lack of support for research. Conclusions: Participants demonstrated strong self-efficacy; held high, positive expectations for success; and set very specific, clear, and deliberate goals. Participant behavior was moderated by their personal attributes (capacity to build relationships, set goals, and maintain interest and passion) and was tempered by the environments in which they worked. Fostering similar behaviors has the potential to guide future and current PETE faculty members in creating supportive and encouraging atmospheres for sustained productivity. The lack of literature relating to this topic warrants the need for more research exploring the influential factors and benefits gained from sustained scholarly productivity over time for PETE faculty members.  相似文献   

The spectrophotometric determination of hydrogen-ion concentrations and of the apparent dissociation constants of indicators. II. Thymol blue     

Walter C. Holmes  Edward F. Snyder 《Journal of The Franklin Institute》1925,199(3):417-418

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The impact of an open campus program upon high school students' sense of control over their environment     

Catherine E. Rosen 《Psychology in the schools》1977,14(2):216-219

Students in an experimental and a control high school were compared in the fall and spring on their Locus of Control scores. An Open Campus policy was instituted in the experimental school, which essentially gave its upperclassmen the same freedom and responsibilities as those of a community college student. The experimentals increased significantly more than controls in internal control. Students reported that the Open Campus experience led to: after school jobs, greater time to pursue own interests, feelings of freedom, autonomy, and responsibility, a decline in grades due to “goofing off,” and less time for social activities.  相似文献   

The learning worker,organizations and democracy     

Catherine Casey 《International Journal of Lifelong Education》2013,32(6):620-634

A current turn of interest in notions of the ‘learning economy’ and the ‘learning society’ is fuelling discussions on promoting education, training and learning in contemporary organizations and workplaces. Although the education of workers has been variously theorized and practised throughout the 20th century, the current debates are marked by a prevailing economic perspective that places emphasis on constructing ‘learning organizations’ and on ‘human resource’ learning in service of organizational strategies for innovation and competitive advantage in economic activities. Critics point out that economic and managerial models scarcely attend to the human subjectivity of the learner‐worker and the worker's diverse learning interests. Broader socio‐cultural ends of worker learning such as lifelong human development and participatory citizenship in democratic society are very often overlooked. This article offers a critical discussion of current conceptions of learning organizations and learning workers. It argues that the prevailing focus on techno‐economic imperatives and of obscured managerial elite interests in organizations currently circumscribe and delimit learning in production organizations. It proposes that a more comprehensive approach to learning in organizations attends explicitly to the needs and interests of workers as learning persons. Taking a longer view, it proposes that organizational and worker learning may generate not only improved work practices but may regenerate links between lifelong learning, societal democratic citizenship and civilized organizations.  相似文献   

Policy discourse analysis: negotiating gender equity     

Catherine Marshall 《教育政策杂志》2013,28(2):125-156

This analysis of activists' and bureaucrats' politicking for gender policy in Australia demonstrates the utility of discourse analysis. Feminist policy initiatives are special: they challenge hegemony and they circulate counter discourse. Policy elites try to manage and discredit them. Traditional policy frameworks are used to identify policy with policy mechanisms, policy communities, value shifts and the like. But the use of policy discourse analysis for this Australian story elicits key strategies for constructing and managing a counter narrative and maintaining a counter public of outsiders using insiders to institutionalize gender policies even as equity and social justice value priorities recede.  相似文献   

12. Calling for community in a conservative age     

Catherine A. Lugg 《教育政策杂志》2013,28(1-2):101-110

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Making and Molding Identity in Schools: Student Narratives on Race,Gender, and Academic Engagement     

Catherine Rassiguier 《课程研究杂志》2013,45(5):595-598

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Amount,content and context of infant media exposure: a parental questionnaire and diary analysis     

Rachel Barr  Catherine Danziger  Marisa E. Hilliard  Carolyn Andolina  Jenifer Ruskis 《International Journal of Early Years Education》2010,18(3)

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Editorial     

Jason Irizarry  Catherine Tebaldi 《Equity & Excellence in Education》2017,50(2):123-124

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