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   22287篇
  免费   279篇
  国内免费   57篇
教育   16079篇
科学研究   2015篇
各国文化   187篇
体育   1496篇
综合类   51篇
文化理论   216篇
信息传播   2579篇
  2021年   198篇
  2020年   267篇
  2019年   401篇
  2018年   1189篇
  2017年   1252篇
  2016年   996篇
  2015年   421篇
  2014年   554篇
  2013年   3805篇
  2012年   603篇
  2011年   840篇
  2010年   763篇
  2009年   593篇
  2008年   663篇
  2007年   760篇
  2006年   465篇
  2005年   505篇
  2004年   434篇
  2003年   374篇
  2002年   294篇
  2001年   441篇
  2000年   362篇
  1999年   298篇
  1998年   206篇
  1997年   190篇
  1996年   191篇
  1995年   148篇
  1994年   167篇
  1993年   139篇
  1992年   237篇
  1991年   225篇
  1990年   247篇
  1989年   229篇
  1988年   190篇
  1987年   196篇
  1986年   201篇
  1985年   197篇
  1984年   192篇
  1983年   166篇
  1982年   141篇
  1981年   142篇
  1980年   130篇
  1979年   201篇
  1978年   168篇
  1977年   117篇
  1976年   121篇
  1975年   113篇
  1974年   105篇
  1973年   109篇
  1971年   117篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
31.
32.
33.
34.
35.
36.
Three supervision modalities (live, delayed review, and verbal reports) in training marital and family counselors are discussed with attention given to goals, supervisory considerations, advantages, and disadvantages of each modality.  相似文献   
37.
38.
This study extended validity evidence for multidimensional measures of coaching competency derived from the Coaching Competency Scale (CCS; Myers, Feltz, Maier, Wolfe, & Reckase, 2006) by examining use of the original rating scale structure and testing how measures related to satisfaction with the head coach within teams and between teams. Motivation, game strategy, technique, and character building comprised the dimensions of coaching competency. Data were collected from athletes (N = 585) nested within intercollegiate men's (g = 8) and women's (g = 13) soccer and women's ice hockey (g = 11) teams (G = 32). Validity concerns were observed for the original rating scale structure and the predicted positive relationship between motivation competency and satisfaction with the coach between teams. Validity evidence was offered for a condensed post hoc rating scale and the predicted relationship between motivation competency and satisfaction with the coach within teams.  相似文献   
39.
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   
40.
Chaos theory, informational needs, and natural disasters   总被引:2,自引:0,他引:2  
This study applies chaos theory to a system-wide analysis of crisis communication in a natural disaster. Specifically, we analyze crisis communication during the 1997 Red River Valley flood in Minnesota and North Dakota. This flood, among the worst in modern American history, consumed entire metropolitan areas, displacing thousands of people. The conditions and decisions leading to the disaster, and the subsequent reactions are retraced. Communication related to river crest predictions (fractals), the shock at the magnitude of the crisis (cosmology episode), novel forms of reorganizing (self-organization), and agencies that aided in establishing a renewed order (strange attractors) are evaluated. Ultimately, we argue that preexisting sensemaking structures favoring rationalized, traditional views of a complex system led officials to make inappropriately unequivocal predictions and ultimately diminished the effectiveness of the region's crisis communication and planning.  相似文献   
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