首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   484篇
  免费   4篇
教育   333篇
科学研究   69篇
各国文化   3篇
体育   36篇
综合类   1篇
文化理论   4篇
信息传播   42篇
  2021年   7篇
  2020年   8篇
  2019年   7篇
  2018年   10篇
  2017年   20篇
  2016年   10篇
  2015年   4篇
  2014年   6篇
  2013年   138篇
  2012年   7篇
  2011年   9篇
  2010年   12篇
  2009年   14篇
  2008年   8篇
  2007年   10篇
  2006年   6篇
  2005年   3篇
  2003年   4篇
  2002年   6篇
  2001年   6篇
  2000年   5篇
  1999年   4篇
  1998年   6篇
  1996年   12篇
  1995年   5篇
  1994年   9篇
  1993年   9篇
  1991年   4篇
  1990年   5篇
  1989年   8篇
  1988年   9篇
  1987年   3篇
  1986年   4篇
  1985年   6篇
  1983年   3篇
  1982年   5篇
  1981年   6篇
  1980年   4篇
  1976年   4篇
  1973年   4篇
  1968年   3篇
  1938年   4篇
  1933年   3篇
  1932年   3篇
  1926年   2篇
  1923年   5篇
  1922年   2篇
  1918年   2篇
  1917年   3篇
  1907年   3篇
排序方式: 共有488条查询结果,搜索用时 46 毫秒
81.
82.
83.
This essay analyzes the ways in which Kent State, the made‐for‐TV docudrama, purified the image of William Knox Schroeder‐one of the four students killed on May 4, 1970, by Ohio National Guardsmen on the Kent State University campus. The author was a boyhood friend of Schroeder, his roommate at Kent State University at the time of his death, and an observer of many of the major events of the Kent State affair. This essay views the making of a docudrama as a complex problem to be solved and characterizes a docudramatist as a less‐than‐perfect decision maker. Also, this essay views Kent State as a real‐fiction through which the act of rhetorical purification was accomplished. The paper discusses the docudrama's efforts in this regard by analyzing important scenes in which inaccuracies are presented in order to achieve the purification of Schroeder's image.  相似文献   
84.
85.
86.
Over the last decade universities across the world have been grappling with quality and quality assurance issues. In several countries national policies on higher education quality assurance have been evolving, mostly with the purpose of putting external systems of quality assurance in place. In many instances, these policies and systems had less effect on the quality of teaching and learning than had been expected. This paper serves as a comparison of national quality policy developments in two countries, Australia and South Africa, and goes on to investigate the emerging tensions in quality policy processes in these countries. Whereas a number of similarities were discerned, differences were as evident, verifying the underlying assumption of the authors that notions of quality, and quality policies and their implementation are very much dependent on the particular localised contexts in which they exist.  相似文献   
87.
The study of childhood stress provides a useful perspective for assessing children's emotional status. Thematic projective techniques, like the Children's Apperception Test (CAT), may be useful in exploring children's perception of stress. For this purpose, a need-threat analysis is recommended to identify those underlying needs and threats that are likely to make a particular event or situation important, and hence potentially stressful, to an individual child. This paper introduces a scoring system for the CAT based on the analysis of thematic data in terms of five need-threat binaries, which serve as scoring categories. Preliminary data on reliability are presented.  相似文献   
88.
Body position is known to alter power production and affect cycling performance. The aim of this study was to compare mechanical power output in two riding positions, and to calculate the effects on critical power (CP) and W′ estimates. Seven trained cyclists completed three peak power output efforts and three fixed-duration trial (3-, 5- and 12-min) riding with their hands on the brake lever hoods (BLH), or in a time trial position (TTP). A repeated-measures analysis of variance showed that mean power output during the 5-min trial was significantly different between BLH and TTP positions, resulting in a significantly lower estimate of CP, but not W′, for the TTP trial. In addition, TTP decreased the performance during each trial and increased the percentage difference between BLH and TTP with greater trial duration. There were no differences in pedal cadence or heart rate during the 3-min trial; however, TTP results for the 12-min trial showed a significant fall in pedal cadence and a significant rise in heart rate. The findings suggest that cycling position affects power output and influences consequent CP values. Therefore, cyclists and coaches should consider the cycling position used when calculating CP.  相似文献   
89.
The forward skating start is a fundamental skill for male and female ice hockey players. However, performance differences by athlete’s sex cannot be fully explained by physiological variables; hence, other factors such as skating technique warrant examination. Therefore, the purpose of this study was to evaluate the body movement kinematics of ice hockey skating starts between elite male and female ice hockey participants. Male (n = 9) and female (n = 10) elite ice hockey players performed five forward skating start accelerations. An 18-camera motion capture system placed on the arena ice surface captured full-body kinematics during the first seven skating start steps within 15 meters. Males’ maximum skating speeds were greater than females. Skating technique sex differences were noted: in particular, females presented ~10° lower hip abduction throughout skating stance as well as ~10° greater knee extension at initial ice stance contact, conspicuously followed by a brief cessation in knee extension at the moment of ice contact, not evident in male skaters. Further study is warranted to explain why these skating technique differences exist in relation to factors such as differences in training, equipment, performance level, and anthropometrics.  相似文献   
90.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号