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91.
92.
As the second in a series of studies concerning the development of kindergartners' self‐perceptions, this study examined the effects of the kindergarten experience on self‐perceptions of African American and White students as they progressed through their kindergarten year. Using a countywide sample of 209 children in 31 classrooms, the study incorporated in vivo observations of teachers' verbal behavior and self‐perception data from the Pictorial Scale of Perceived Competence and Social Acceptance for Young Children. Results indicate that the kindergarten experience had an equalizing effect on the self‐perceptions of African American and White children, although self‐perceptions of cognitive competence were initially lower for African American children than for their White counterparts. Teachers' verbal interactions with children were not affected by the child's race, at least when different achievement levels were taken into account. © 1999 John Wiley & Sons, Inc. 相似文献
93.
The existing literature suggests that crank inertial load has little effect on the responses of untrained cyclists. However, it would be useful to be aware of any possible effect in the trained population, particularly considering the many laboratory-based studies that are conducted using relatively low-inertia ergometers. Ten competitive cyclists (mean VO(2max) = 62.7 ml x kg(-1) x min(-1), s = 6.1) attended the human performance laboratories at the University of Wolverhampton. Each cyclist completed two 7-min trials, at two separate inertial loads, in a counterbalanced order. The inertial loads used were 94.2 kg x m(2) (high-inertia trial) and 2.4 kg x m(2) (low-inertia trial). Several physiological and biomechanical measures were undertaken. There were no differences between inertial loads for mean peak torque, mean minimum torque, oxygen uptake, blood lactate concentration or perceived exertion. Several measures showed intra-individual variability with blood lactate concentration and mean minimum torque, demonstrating coefficients of variation > 10%. However, the results presented here are mostly consistent with previous work in suggesting that crank inertial load has little direct effect on either physiology or propulsion biomechanics during steady-state cycling, at least when cadence is controlled. 相似文献
94.
Taliaferro LA Rienzo BA Miller MD Pigg RM Dodd VJ 《Research quarterly for exercise and sport》2010,81(3):328-339
Suicide ranks as the third leading cause of death for American youth. Researchers examining sport participation and suicidal behavior have regularly found inverse relationships. This study represents the first effort to test a model depicting potential mechanisms through which sport participation relates to reduced risk of suicidal ideation. The participants were 450 undergraduate students. Measures assessed participants' involvement in university-run sports and other activities; frequency of physical activity; and perceived social support, self-esteem, depression, hopelessness, loneliness, and suicidal ideation. Regression analyses confirmed a path model and tested for mediation effects. Vigorous activity mediated relationships between sport participation and self-esteem and depression; and self-esteem and depression mediated the relationship between vigorous activity and suicidal ideation. Social support mediated relationships between sport participation and depression, hopelessness, and loneliness; and each of these risk factors partially mediated the relationship between social support and suicidal ideation. However no variable fully mediated the relationship between sport participation and suicidal ideation. This study provides a foundation for research designed to examine pathways through which sport participation relates to reduced risk of suicidal behavior. 相似文献
95.
AbstractThis paper traces the history of two important policies in sport: rules against drugs and ‘ambiguous’ athletes in women’s events. We identify three phases in the work of the International Olympic Committee’s and International Amateur Athletic Federation’s medical committees: (1) from the mid-1960s to the 1970s, the medical grounding of the committees and the members’ worldviews encouraged the groups to enlist scientific techniques to solve drug use and sex ambiguity issues; (2) from the 1970s to the 1980s, administrative confusion underscored both committees, but scientific personnel gained legitimacy and furthered their own agendas; and (3) from the 1980s to the mid-1980s, the seeds of diversion in sex and drug tests were sown. The central finding of this study is that the stakeholders who shaped anti-doping and sex testing policies took for granted concerns regarding ethics and instead increasingly relied upon medical, scientific, and technical practices to define and control fairness in sport. 相似文献
96.
Geoff Lindsay 《British Journal of Special Education》1997,24(2):55-59
Professor Geoff Lindsay, Director of the Special Needs Research Unit at The University of Warwick, is the fourth of the new professors to contribute to the debate on the future of Special Education. 相似文献
97.
Peterson M Harris L;South Australian Health Libraries Consortium 《Health information and libraries journal》2002,19(2):78-83
The establishment of the South Australian Health Libraries Consortium led to the development of the SALUS project which enabled the online delivery of core health, clinical information and bibliographic databases with full-text resources across South Australian government health services. This was the first venture of Australian health librarians to create an online consortium. This article discusses the policy and management issues surrounding the implementation of the SALUS project and its influence on the evolution of the health Libraries Consortium over several years. Lessons learned during this process included: the necessity to plan well ahead yet to remain flexible in implementing those plans, to avoid procedure becoming more important than improvization during planning, to be willing to take well judged risks on occasions, and to be fully aware of changing circumstances in the project's funding and political environment. The importance of securing influential advocates outside of the participating libraries to support continued project funding is also considered. 相似文献
98.
Controlled vocabulary and subject headings in OPAC records have proven to be useful in improving search results. The authors used a survey to gather information about librarian opinions and professional use of controlled vocabulary. Data from a range of backgrounds and expertise were examined, including academic and public libraries, and technical services as well as public services professionals. Responses overall demonstrated positive opinions of the value of controlled vocabulary, including in reference interactions as well as during bibliographic instruction sessions. Results are also examined based upon factors such as age and type of librarian. 相似文献
99.
Investigating Change in Adolescent Self‐Efficacy of Food Safety Through Educational Interventions
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Amy S. Beavers Lindsay Murphy Jennifer K. Richards 《Journal of Food Science Education》2015,14(2):54-59
A successfully targeted intervention can influence food safety knowledge, attitudes, and behaviors, as well as encourage participants to recognize their own responsibility for safe food handling. This acknowledgement of an individual's responsibility and capacity to address food safety can be understood as self‐efficacy of food safety (SEFS). This study investigated the impact of a specific educational intervention, Hands On: Real‐World Lessons for Middle School Classrooms, curriculum on SEFS in adolescents and was guided by two research questions: (1) to what extent can an existing food safety curriculum impact students’ SEFS, and (2) to what extent does a relationship exist between changes in self‐efficacy and changes in food safety behavior, particularly when controlling for knowledge gains. A total sample of 424 students across 6 states participated in this study. Teachers were trained to implement the Hands On program in their classrooms and then students were administered a pre‐ and posttest to measure the impact of the program on knowledge, food safety‐related behaviors, and SEFS. The data indicated that there is a strong predictive relationship between SEFS and positive behavior change. Additionally, the Hands On program was effective at increasing students’ SEFS. 相似文献
100.
This paper utilises critical discourse analysis to explore and discuss the expression of health within physical education (PE) curricula in secondary schools in England and Wales. The study adopted a case study approach, involving three state secondary schools in England and two in Wales. Data were drawn from interviews with PE teachers and health-related school documentation in the five schools plus observation of a health-related unit of work in one of the schools. The expression of health in PE broadly reflected ideologies associated with promoting ‘fitness for life’ and ‘fitness for performance’. The extent to which teachers could express their favoured discourses in policy and practice was partly determined by their position of power, relative to others within the department, although they could find ways of privileging their favoured discourse in their own lessons. Curiously, rhetorical ‘fitness for life’ discourses were commonly expressed through ‘fitness for performance’ practices in the form of testing and training activities. These were found to be the most common contexts for the delivery of health-related learning. In terms of Bernstein's location of discourses within contexts of educational systems, the findings suggest that recontextualisation of statutory PE curricula occurred at the site of the relocation of discourse (in this case, within PE departments in secondary state schools), resulting in the privileging of discourses heavily influenced by sport- and fitness-related ideologies. Improved awareness of the expression of health in secondary school PE curricula should help to better understand and address the complex tensions between health-related policies and practices in schools. 相似文献