论武术竞赛中比赛服装的要求及其作用

随着武术竞赛活动日趋增多,为了在世界范围内更快更好地推动武术运动的发展,不仅需要提高武术裁判员的业务水平和运动员的竞技能力,还要注重武术比赛服装的选择。文章分析了现代武术竞赛中比赛服装的流行趋势,研究了武术竞赛中对服装的要求以及比赛服装在武术竞赛中的作用,旨在更好地促进武术运动的发展。     

山东省新泰体操运动学校女子6—7岁组优秀运动员竞技能力各因素相关分析

为提高女子少儿体操运动员选材效果 ,科学地制订运动训练计划以及有效地控制训练的过程 ,对山东省连续两年获得女子 6～ 7岁组团体冠军的新泰体操运动学校 8名优秀运动员 ,进行了身体形态、素质、基本技术等因素各指标的测试 ,用因素分析法探讨了各因素对竞技能力的关联程度。结果表明 ,身体形态匀称即四肢长、手大、髋小、肩宽、体重轻等的女子少儿是较理想的体形 ;素质训练过程中 ,应着重注意增强腹背力量、爆发力和上肢力量 (尤其是支撑力量 ) ;基本技术训练过程中 ,应偏重于自由操翻腾技术的训练 ,这样对其他三项的翻腾技术起到正诱导和促进作用 ,能进一步提高竞技能力。     

Making the written word “speak”: Reflections on the teaching of correspondence courses

Abstract

Learning outcomes for an interactive television‐based distance learning course in introductory high school Japanese were evaluated in three successive years by comparing student achievement in the distance learning course to that in traditional classes. Year‐end achievement tests of listening and written language competency were administered to students in both the distance and face‐to‐face courses. Results in the first two years showed that test scores of students in the distance learning course were higher than those of students in the face‐to‐face classes; however, possible group differences in motivation, general ability, and experience as language learners could not be ruled out as explanations for the difference. Therefore, achievement measures were supplemented in the third year with data on students’ perceived efficacy as Japanese language users, their grades, and their previous foreign language learning experience. The achievement data again showed differences favoring the distance learning group; trends were consistent for students with differing levels of school success and amount of prior language learning experience. Factors that could account for these results are hypothesized and suggestions for future research are proposed.     

Expert googling: best practices and advanced strategies for using google in health sciences libraries

Google is the search engine of choice for most Internet users. For a variety of reasons, librarians and other expert searchers do not always use Google to its full potential, even though it provides capabilities not possible in traditional bibliographic databases and other search engines. Applying expert searching principles and practices, such as the use of advanced search operators, information retrieval strategies, and search hedges to Google will allow health sciences librarians to find quality information on the Internet more efficiently and effectively.     

英国国防科技信息管理体制和保障体系研究

英国是当今世界国防科技信息工作发展水平较高的国家,合理地分析其管理体制、保障体系和相应的政策法规环境,借鉴其成功经验,对于加快我国国防科技信息事业的发展进程具有重要的指导与启示意义。     

A locus of control and social distance comparison of Canadian and West Indian-born students

Three hundred and seventy-nine participants were tested in the West Indies and in Canada, with the Rotter Locus of Control Scale and the Wolfgang Interpersonal Distance Test. The results indicated that West Indian adolescent students were more internally controlled than their Canadian counterparts. Also, overall, West Indian students showed more approach behavior toward significant interpersonal figures than Canadian students. In addition, no correlation was apparent between locus of control and social distance, suggesting that they are separate constructs. Implications of the findings for social adjustment of West Indian immigrants in Canada are discussed.     

试谈在小学数学教学中"问题情境"的创设

问题是思维的火花，引人人胜的问题情境能调动学生的情绪，激活学生的学习欲望。在数学教学中一定要掌握适当的时机，精心创设问题情境，激发学生学习欲望，让学生充分感受问题、探究问题、解决问题，使学生在参与学习的过程中，聪明才智得到发挥，潜力得到开发，素质得到提高。     

Community violence,school‐related protective factors,and psychosocial outcomes in urban youth

This study examined the relationship of two putative school‐based protective factors—student identification with school and perceived teacher support—to psychosocial outcomes in a sample of urban youth exposed to community violence. Participants were 175 high school students ages 14–19 in grades 9–12 from a large urban school district. Results indicated that exposure to violence was positively associated with internalizing and externalizing symptoms. Additionally, identification with school and teacher support were related to higher hope and lower psychosocial distress. Adolescents who reported higher identification with school and higher teacher support reported higher hope, regardless of the level of violence exposure. Results emphasize the importance of school factors, particularly feeling connected to and supported in school, in promoting hope and minimizing psychosocial distress for youth exposed to community violence. © 2009 Wiley Periodicals, Inc.     

A Comparison of Tests for Equality of Two or More Independent Alpha Coefficients

This article extends the Bonett (2003a) approach to testing the equality of alpha coefficients from two independent samples to the case of m ≥ 2 independent samples. The extended Fisher-Bonett test and its competitor, the Hakstian-Whalen (1976) test, are illustrated with numerical examples of both hypothesis testing and power calculation. Computer simulations are used to compare the performance of the two tests and the Feldt (1969) test (for m = 2) in terms of power and Type I error control. It is shown that the Fisher-Bonett test is just as effective as its competitors in controlling Type I error, is comparable to them in power, and is equally robust against heterogeneity of error variance.