对12、13届亚运会田径运动水平的量化评价与比较研究     

林琳 《四川体育科学》2002,(4):16-17

本文运用达标类体育项目运动水平百分制评定法，以12、13届亚运会当年的世界田径最好成绩为标准，对12、13届亚运会田径运动水平进行了定量分析与比较研究。结果表现：与第12届亚运会相比，第13届亚运会田径运动水平男子呈停滞状态，女子呈下降趋势。  相似文献   

立法建制 加强体育院校教师队伍的建设     

赵勇戈 《体育成人教育学刊》2002,18(2):8-10

在制度和机制创新方面需要采取 5种措施 :即建立依法管理的制度 ,形成校方与教师之间的互动约束力 ;建立竞赛聘任机制 ,增强教师队伍建设的活力 ;建立激励优秀拔尖人才脱颖而出的分配机制 ,形成发挥自身潜能的动力 ;构建教师继续教育制度 ,形成一种提升力 ;建立师德教育和奖励制度 ,形成一种凝聚力  相似文献   

Differences in activation patterns between eccentric and concentric quadriceps contractions.     

Malachy P McHugh  Timothy F Tyler  Scott C Greenberg  Gilbert W Gleim 《Journal of sports sciences》2002,20(2):83-91

Previous studies analysing electromyograms (EMGs) from indwelling electrodes have indicated that fast-twitch motor units are selectively recruited for low-intensity eccentric contractions. The aim of this study was to compare the frequency content of surface EMGs from quadriceps muscles during eccentric and concentric contractions at various contraction intensities. Electromyograms were recorded from the rectus femoris, vastus lateralis and vastus medialis muscles of 10 men during isokinetic (1.05 rad x s(-1)) eccentric and concentric knee extension contractions at 25%, 50%, 75% and 100% of maximal voluntary contraction (MVC) for each contraction mode. Additionally, isometric contractions (70 degrees) were performed at each intensity. The mean frequency and root mean square (RMS) of the surface EMG were computed. Mean frequency was higher for eccentric than concentric contractions at 25% (P < 0.01), 50% (P < 0.01) and 75% (P < 0.05) but not at 100% MVC. It increased with increasing contraction intensity for isometric (P < 0.001) and concentric (P < 0.01) contractions but not for eccentric contractions (P = 0.27). The EMG amplitude (RMS) increased with increasing contraction intensity similarly in each contraction mode (P < 0.0001). Higher mean frequencies for eccentric than concentric contractions at submaximal contraction intensities is consistent with more fast-twitch motor units being active during eccentric contractions.  相似文献   

Causation and Universals     

J. E. TILES 《Philosophical Books》1991,32(3):167-169

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创造教学法在武术教学中的运用研究     

田芳兵 《体育成人教育学刊》2002,18(2):72-73

在教学中就如何提高学生素质 ,培养创新能力进行了一些探讨。实践证明 ,运用创造教学法教学有利于激发大学生的创造兴趣 ;能够提高学生创编武术套路的能力 ;取得良好的教学效果  相似文献   

Patterns of journal publications by staff of the College of Medicine, University of Ibadan, Nigeria, 1961-1980     

P H Shoyinka  F D De Cola 《Bulletin of the Medical Library Association》1984,72(2):168-176

This study analyzes publishing patterns of the staff of the University of Ibadan College of Medicine, Nigeria, based on a bibliography prepared by the authors. Data-gathering for the bibliography is described. An analysis is made of journals staff published in for the period 1961-1980, focusing on changes in journal order rank, publishing locations, and subject spread. A ranked list of the leading journals for the period 1976-1980 is given, showing the importance of local publishing and pointing to the need for local indexing.  相似文献   

The effects of teachers' wait-time and knowledge comprehension questioning on science achievement     

Joseph P. Riley 《科学教学研究杂志》1986,23(4):335-342

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The marketing audit: a new perspective on library services and products     

P J Wakeley  C Poole  E C Foster 《Bulletin of the Medical Library Association》1988,76(4):323-327

A marketing audit enables a library to look at audiences, services, and products with a structured approach. The audit can be used to assess operations and to provide a framework for ongoing decision making, evaluation, and long-range planning. An approach to the audit process is presented and its application is demonstrated in a case study featuring the American Hospital Association Resource Center.  相似文献   

Book reviews     

Leonard Shatzkin  Arthur P. Young  William Holtz  J. Kendrick Noble  David A. Kronick Ph.D.  Thomas L. Bonn  Thomas L. Bonn 《Publishing Research Quarterly》1996,12(1):86-97

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Test Fairness: Internal and External Investigations of Gender Bias in Mathematics Testing     

Thomas E. Langenfeld 《Educational Measurement》1997,16(1):20-26

What two major approaches have been used to study gender bias in test scores? How do statistical DIF detection methods differ? How does DIF screening of items affect mean score differences?  相似文献