论高校体育教学的创新与大学生负性情绪的调控

关注学生的心理问题，是创新高校体育教学的又一核心问题。笔者拟透视“情绪”这一视角，来分析当前高校体育教学对大学生情绪的影响，以求切准大学生带有社会性的整体情绪状态，来创新高校体育教学，以实现大学生身、心、群的全面发展。     

教学实习中采用"说课"方法的实验研究

“说课”是授课者在有限的时间内，将一节体育课的教学内容、方法，课的组织形式、练习步骤以及场地、器材等运用情况，用简练准确的语言并配合清晰、简单的动作示范向听课者展现出来。实习生课前采用“说课”，能使各教学环节在头脑中加深印象，加快向教师角色意识转换的速度，有利于教学基本功的掌握，此方法具有可操作性和实用性。     

高原训练的生物学效应

高原训练对人体有着复杂的生理学效应和训练学效应，是提高运动员运动能力的一种较好的赛前训练方法。对高原训练的起源及对人体呼吸、心血管、血液、骨骼肌、中枢神经等系统的影响进行了分析，为科学认识和实施高原训练提供参考。     

新世纪我国老年体育发展的困境与出路

通过对新世纪我国老年体育发展所面临的主要困境与产生困境的社会背景进行分析和讨论，指出应加大政府宏观指导的力度、完善老年体育管理体制，注重老年体育消费市场的开发，加大老年体育专业指导人员的培养力度，拓宽筹集老年体育活动资金的渠道，丰富老年体育活动内容等。     

对加入WTO后我国高校体育教师素质的思考

分析了我国普通高校体育教师素质的现状，论述了加入WTO后，优秀的高校体育教师应具备的素质，并提出了提高我国普通高校体育教师素质的建议。     

Physical activity levels of 5-11-year-old children in England as determined by continuous observation.

Continuous observation of the physical activity of 56 preadolescent children was conducted in four regions of England from October 1988 to July 1989. Observations were undertaken during school break times, lunch times, and physical education lessons, as well as during the children's free time. Of total time observed, the children spent 32.4% of it engaged in moderate to vigorous physical activity (MVPA). Children were shown to be most active during school breaks and least active during free time at home. However, it is thought that cardiorespiratory benefits are best achieved by participation in sustained periods of MVPA. Only 8 (14%) of the 56 children were observed to participate in MVPA for sustained periods of 20 min or longer. A random sample of 55 physical education lessons was observed. Only 6 children engaged in MVPA for sustained periods of 5 min or more, and no children participated in MVPA for 10 min or longer. The implications of these results are that, although the children engaged in a reasonable amount of MVPA, it may not have been sustained for periods of sufficient length to produce a cardiovascular training response. Consideration is given to ways of promoting lifelong involvement in physical activity.     

浅谈如何上好艺术体操选修课

对普通高校艺术体操选修课教学从形体姿态的培养、教学成套动作的编排,音乐的选择及口令、手势的运用等,进行了分析探讨.     

Measuring Search Engine Quality

The effectiveness of twenty public search engines is evaluated using TREC-inspired methods and a set of 54 queries taken from real Web search logs. The World Wide Web is taken as the test collection and a combination of crawler and text retrieval system is evaluated. The engines are compared on a range of measures derivable from binary relevance judgments of the first seven live results returned. Statistical testing reveals a significant difference between engines and high intercorrelations between measures. Surprisingly, given the dynamic nature of the Web and the time elapsed, there is also a high correlation between results of this study and a previous study by Gordon and Pathak. For nearly all engines, there is a gradual decline in precision at increasing cutoff after some initial fluctuation. Performance of the engines as a group is found to be inferior to the group of participants in the TREC-8 Large Web task, although the best engines approach the median of those systems. Shortcomings of current Web search evaluation methodology are identified and recommendations are made for future improvements. In particular, the present study and its predecessors deal with queries which are assumed to derive from a need to find a selection of documents relevant to a topic. By contrast, real Web search reflects a range of other information need types which require different judging and different measures.     

Medical history for tomorrow—preserving the record of today

This paper addresses the need to recognize the importance, and the challenges, of preserving the hugely expanding record of medicine today for historians of the future. We are faced not only with an increase in traditional publishing formats, but also with the rapid growth in electronic communications. Two celebrated medical cases, one from the late seventeenth century and one from the late twentieth, are used to illustrate the differences and the difficulties. The need for active and effective professional collaboration is stressed; libraries should work together to address these issues.