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   14924篇
  免费   229篇
  国内免费   22篇
教育   10453篇
科学研究   1602篇
各国文化   157篇
体育   1385篇
综合类   7篇
文化理论   139篇
信息传播   1432篇
  2022年   89篇
  2021年   184篇
  2020年   282篇
  2019年   402篇
  2018年   541篇
  2017年   512篇
  2016年   508篇
  2015年   327篇
  2014年   415篇
  2013年   2757篇
  2012年   367篇
  2011年   365篇
  2010年   321篇
  2009年   259篇
  2008年   298篇
  2007年   267篇
  2006年   262篇
  2005年   225篇
  2004年   246篇
  2003年   215篇
  2002年   194篇
  2001年   454篇
  2000年   300篇
  1999年   258篇
  1998年   127篇
  1997年   153篇
  1996年   133篇
  1995年   124篇
  1994年   138篇
  1993年   104篇
  1992年   173篇
  1991年   180篇
  1990年   186篇
  1989年   187篇
  1988年   156篇
  1987年   154篇
  1986年   153篇
  1985年   194篇
  1984年   151篇
  1983年   128篇
  1982年   121篇
  1981年   114篇
  1980年   108篇
  1979年   155篇
  1978年   119篇
  1977年   107篇
  1975年   106篇
  1974年   95篇
  1973年   102篇
  1971年   85篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
Medicine has made increasing use of meta-analysis, largely as a quantitative procedure for combining results of clinical trials. Meta-analysis begins with a comprehensive review of the literature. The next step is a systematic analysis of the quality and content of each study. Finally, results are combined statistically and conclusions are drawn from this new overview of the data. This paper presents a brief historical perspective on the use of meta-analysis in medicine with emphasis on the medical library. The authors conclude that in the future, medical librarians will play a significant role in the application of this useful technique.  相似文献   
43.
What is the future for libraries and their librarians? In trying to give an answer to this pressing question we do not deal with utopian libraries of the next century, but with the library and the librarian of the next decade. The emphasis is on libraries within educational and research institutions, especially university libraries. We examine the changes confronting the library of the future and identify four key aspects of the library of the future. It will be (i) a gateway to information, whatever format this information comes in and wherever it is located; (ii) an expertise centre; (iii) a physical entity, not only in the sense of being a social meeting place and place of scholarly interaction, but also as a place where students and other users are provided with modern study facilities and adequate user support; and (iv) a collection centre of printed material. Such libraries can only take on an appropriate shape and will only survive if the institutions that librarians serve in meet the four criteria outlined above. We look at the demands that will be made on professional library knowledge and skills and the new job responsibilities and job attitudes required.  相似文献   
44.
以广西82名业余体校男运动员为研究对象,运用数理统计方法,探讨了快肌百分比与有关身体素质指标和生理指标的相关程度,以及拟合的指标对快肌百分比的影响,旨在为速度性运动项目的选材提供理论依据。  相似文献   
45.
浅谈体育教学中的语言艺术   总被引:1,自引:0,他引:1  
体育教学语言是教师向学生传授知识的载体,交流情感的方式及培养人才的工具,亦是影响教学效果的重要因素之一.通过对体育教学语言的分类、特点及其运用方法的论述,着重阐明了体育教学语言指令性、调节性和感染性特点;语言修养及教育性、准确性和生动性等要求.  相似文献   
46.
试述现代科学训练的主要特征   总被引:2,自引:0,他引:2  
根据现代运动训练学科的发展趋势,从运动训练的过程、人员机构和外部联系3个主要方面对现代科学训练的特征进行论述.  相似文献   
47.
The purpose of this study was to determine test-retest reliability for the 1-mile, 3/4-mile, and 1/2-mile distance run/alk tests for children in Grades K-4. Fifty-one intact physical education classes were randomly assigned to one of the three distance run conditions. A total of 1,229 (621 boys, 608 girls) completed the test-retests in the fall (October), with 1,050 of these students (543 boys, 507 girls) repeating the tests in the spring (May). Results indicated that the 1-mile run/walk distance, as recommended for young children in most national test batteries, has acceptable intraclass reliability (.83 less than R less than .90) for both boys and girls in Grades 3 and 4, has minimal (fall) to acceptable (spring) reliability for Grade 2 students (.70 less than R less than .83), but is not reliable for children in Grades K and 1 (.34 less than R less than .56). The 1/2 mile was the only distance meeting minimal reliability standards for boys and girls in Grades K and 1 (.73 less than R less than .82). Results also indicated that reliability estimates remained fairly stable across gender and age groups from the fall to spring testing periods, with the exception of the noticeably improved values for Grade 2 students on the 1-mile run/walk test. Criterion-referenced reliability (P, percent agreement) was also estimated relative to Physical Best and Fitnessgram run/walk standards. Reliability coefficients for all age group standards were acceptable to high (.70 less than P less than .95), except for Fitnessgram standards for 5-year-old girls on the 1-mile test for both fall and spring and for 6-year-old boys and girls on the 1-mile test administered in the spring.  相似文献   
48.
49.
50.
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