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   3391篇
  免费   46篇
  国内免费   6篇
教育   2461篇
科学研究   236篇
各国文化   35篇
体育   363篇
综合类   12篇
文化理论   48篇
信息传播   288篇
  2023年   11篇
  2022年   40篇
  2021年   61篇
  2020年   78篇
  2019年   150篇
  2018年   193篇
  2017年   184篇
  2016年   140篇
  2015年   106篇
  2014年   115篇
  2013年   662篇
  2012年   106篇
  2011年   102篇
  2010年   95篇
  2009年   85篇
  2008年   96篇
  2007年   90篇
  2006年   71篇
  2005年   108篇
  2004年   110篇
  2003年   121篇
  2002年   95篇
  2001年   81篇
  2000年   59篇
  1999年   35篇
  1998年   22篇
  1997年   23篇
  1996年   29篇
  1995年   30篇
  1994年   25篇
  1993年   18篇
  1992年   17篇
  1991年   24篇
  1990年   17篇
  1989年   17篇
  1988年   10篇
  1987年   10篇
  1986年   9篇
  1985年   10篇
  1984年   7篇
  1983年   9篇
  1982年   17篇
  1981年   10篇
  1980年   12篇
  1978年   9篇
  1977年   17篇
  1975年   8篇
  1974年   9篇
  1966年   7篇
  1963年   6篇
排序方式: 共有3443条查询结果,搜索用时 0 毫秒
111.
    
Sans résuméRésultats d'une enquête effectuée en mai-juin 1973 par une équipe de l'IREM de Strasbourg dans les classes de 3ème du Bas-Rhin.L'équipe comprenait quatre membres de l'IREM: Mathématiciens:Mademoiselle Anne ScherpereelMonsieur François PluvinagePsychologues:Mademoiselle Catherine BlochMonsieur Raymond Duval  相似文献   
112.
Has the quality movement in universities become so sophisticated that it has outpaced the capacity of academic leaders to respond? The authors of this paper argue that this has been their experience within the context of New Zealand universities. In response, the University of Otago has developed an innovative programme to provide academic and administrative leaders with an opportunity to enhance those skills and attributes needed to meet the challenges of change arising from audit and other reforms.  相似文献   
113.
Suicidal and help‐seeking behaviors of students of color remain a significant problem on college campuses. Self‐reported suicidal experiences and help‐seeking behavior of diverse students are examined on the basis of results from a national survey of college student mental health. The results suggest significant differences in the expression of suicidal thoughts and behavior across racial and ethnic groups and different experiences in their referral for, and utilization of, professional help.  相似文献   
114.
The role of false belief in establishing children's social relationships during the transition to school was examined and compared to other social cognitive constructs. One hundred and fourteen 5‐year‐olds were recruited during their 1st year of school (Time 1); 106 children were retained 1 year later. False belief, emotion expression recognition, empathy, verbal ability, and peer‐rated social preference were measured at both times. False belief at Time 1 had a direct influence on concurrent social preference, over and above the influence of emotion expression recognition and empathy. False belief made no independent contribution to later social preference accounting for stability in social preference. The role of social cognitive development is discussed with respect to how children establish and maintain their position in a peer group.  相似文献   
115.
116.
The performance and capabilities of Web search engines is an important and significant area of research. Millions of people world wide use Web search engines very day. This paper reports the results of a major study examining the overlap among results retrieved by multiple Web search engines for a large set of more than 10,000 queries. Previous smaller studies have discussed a lack of overlap in results returned by Web search engines for the same queries. The goal of the current study was to conduct a large-scale study to measure the overlap of search results on the first result page (both non-sponsored and sponsored) across the four most popular Web search engines, at specific points in time using a large number of queries. The Web search engines included in the study were MSN Search, Google, Yahoo! and Ask Jeeves. Our study then compares these results with the first page results retrieved for the same queries by the metasearch engine Dogpile.com. Two sets of randomly selected user-entered queries, one set was 10,316 queries and the other 12,570 queries, from Infospace’s Dogpile.com search engine (the first set was from Dogpile, the second was from across the Infospace Network of search properties were submitted to the four single Web search engines). Findings show that the percent of total results unique to only one of the four Web search engines was 84.9%, shared by two of the three Web search engines was 11.4%, shared by three of the Web search engines was 2.6%, and shared by all four Web search engines was 1.1%. This small degree of overlap shows the significant difference in the way major Web search engines retrieve and rank results in response to given queries. Results point to the value of metasearch engines in Web retrieval to overcome the biases of individual search engines.  相似文献   
117.
Health sciences librarians are being called upon to be more proactive in their institutions' continuing education efforts. In an effort to identify whether search requests indicated CE needs, a study was conducted by a group of members of GaIN (Georgia Interactive Network for Medical Information). MEDLINE requests from health care professionals for subject specific clinical topics were collected during a six-month period via a standard search request form created for the study. Copies of all completed requests were collected and broad ICD-9 codes assigned to the search topics. Institutional reports were generated for each participating library to share with hospital CE coordinators. They were also compiled for the group as a whole, and reflected the "hottest" topics requested during the study period for physicians and for non-physicians (nurses, allied health, administrators). A survey to hospital librarians and CE educators showed some value in the reports, but greater potential for further collaboration between librarians and CE coordinators.  相似文献   
118.
119.
120.
The aim of the present study was to examine the factorial validity of the Test of Performance Strategies (TOPS; Thomas et al., 1999) among adolescent athletes using confirmatory factor analysis. The TOPS was designed to assess eight psychological strategies used in competition (i.e. activation, automaticity, emotional control, goal-setting, imagery, negative thinking, relaxation and self-talk,) and eight used in practice (the same strategies except negative thinking is replaced by attentional control). National-level athletes (n = 584) completed the 64-item TOPS during training camps. Fit indices provided partial support for the overall measurement model for the competition items (robust comparative fit index = 0.92, Tucker-Lewis index = 0.88, root mean square error of approximation = 0.05) but minimal support for the training items (robust comparative fit index = 0.86, Tucker-Lewis index = 0.81, root mean square error of approximation = 0.06). For the competition items, the automaticity, goal-setting, relaxation and self-talk scales showed good fit, whereas the activation, emotional control, imagery and negative thinking scales did not. For the practice items, the attentional control, emotional control, goal-setting, imagery and self-talk scales showed good fit, whereas the activation, automaticity and relaxation scales did not. Overall, it appears that the factorial validity of the TOPS for use with adolescents is questionable at present and further development is required.  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