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   5324篇
  免费   73篇
  国内免费   11篇
教育   3789篇
科学研究   432篇
各国文化   113篇
体育   477篇
综合类   1篇
文化理论   55篇
信息传播   541篇
  2021年   40篇
  2020年   70篇
  2019年   132篇
  2018年   148篇
  2017年   151篇
  2016年   177篇
  2015年   106篇
  2014年   122篇
  2013年   1355篇
  2012年   107篇
  2011年   136篇
  2010年   111篇
  2009年   118篇
  2008年   130篇
  2007年   111篇
  2006年   92篇
  2005年   115篇
  2004年   101篇
  2003年   95篇
  2002年   104篇
  2001年   79篇
  2000年   80篇
  1999年   84篇
  1998年   46篇
  1997年   65篇
  1996年   57篇
  1995年   59篇
  1994年   62篇
  1993年   53篇
  1992年   62篇
  1991年   77篇
  1990年   64篇
  1989年   54篇
  1988年   37篇
  1987年   57篇
  1986年   41篇
  1985年   60篇
  1984年   53篇
  1983年   51篇
  1982年   41篇
  1981年   38篇
  1980年   29篇
  1979年   40篇
  1978年   47篇
  1977年   43篇
  1976年   32篇
  1975年   37篇
  1974年   23篇
  1973年   24篇
  1971年   26篇
排序方式: 共有5408条查询结果,搜索用时 250 毫秒
1.
2.
3.
This article describes the Engineering Professors' Conference (EPC) approach to quality assurance for Higher Education Institutions, which is currently the only formalized alternative to British Standard 5750 'Quality Systems'. The EPC approach is based on principles of quality assurance and Total Quality Management which have been developed in industry. These ideas are briefly outlined, and an opinion expressed on the interpretation and application of BSS7S0 for HE. The EPC model is explained, illustrated with example elements taken from the EPC Specification and Guidelines for Quality Assurance in Higher Education. A top-down approach to the development of an institutional quality system is described, based on a quality policy statement. Areas of activity which have an important impact on the quality of education are identified, emphasising the quality assurance requirements of academic departments. Supporting and administrative quality system requirements are also described, as these also play an important role in the quality of education. Formal quality procedures and documentation in key areas are proposed.  相似文献   
4.
As a group, students with learning disabilities (LD) have social difficulties. One possible explanation for these difficulties is the unique way they process social information. Although students with LD may differ from their nondisabled peers in their social cognition, investigators have suggested the presence of subgroups within the population of students with LD who may differ in their social competence and, thereby, shed light on the source of the difficulties. The present exploratory study examined how two subgroups of students with LD in inclusive settings, students with high and low social status, perceive social situations. Using a sociometric technique, three students with LD receiving high social‐status ratings and three students with LD receiving low social‐status ratings were identified. A qualitative approach was used to gather and evaluate data from the participants and their teachers. Results suggested differences between the two subgroups in their (1) sensitivity to cues in the environment, (2) interpretation of social situations in relation to their own experiences, and (3) levels of self‐control. Implications of these findings for practice and future research are discussed.  相似文献   
5.
6.
本文要点: ◆遗传型是机体全部遗传基因的总和,代表了个体的遗传潜力.在决定个体的解剖、生化、生理、行为等特性或遗传表型(如褐色的眼睛、75kg的体重、50 ml/kg/min的最大摄氧量等)上起主导作用.  相似文献   
7.
8.
There is limited information on the anthropometry, strength, endurance and flexibility of female rock climbers. The aim of this study was to compare these characteristics in three groups of females: Group 1 comprised 10 elite climbers aged 31.3 +/- 5.0 years (mean +/- s) who had led to a standard of 'hard very severe'; Group 2 consisted of 10 recreational climbers aged 24.1 +/- 4.0 years who had led to a standard of 'severe'; and Group 3 comprised 10 physically active individuals aged 28.5 +/- 5.0 years who had not previously rock-climbed. The tests included finger strength (grip strength, finger strength measured on climbing-specific apparatus), flexibility, bent arm hang and pull-ups. Regression procedures (analysis of covariance) were used to examine the influence of body mass, leg length, height and age. For finger strength, the elite climbers recorded significantly higher values (P < 0.05) than the recreational climbers and non-climbers (four fingers, right hand: elite 321 +/- 18 N, recreational 251 +/- 14 N, non-climbers 256 +/- 15 N; four fingers, left hand: elite 307 +/- 14 N, recreational 248 +/- 12 N, non-climbers 243 +/- 11 N). For grip strength of the right hand, the elite climbers recorded significantly higher values than the recreational climbers only (elite 338 +/- 12 N, recreational 289 +/- 10 N, non-climbers 307 +/- 11 N). The results suggest that elite climbers have greater finger strength than recreational climbers and non-climbers.  相似文献   
9.
The New Social Studies curriculum development movement was short-lived, in part because project staff were not sensitive to the realities of the educational context within which their materials and methods would be used. Although textbook-based recitation persists in social studies classrooms, textbooks are not a ready mechanism for reform. Among the reasons are the institutional constraints on publishers and the difficulty in effecting curricular change without appropriate teacher preparation and modifications in the educational environment. James P. Shaver id professor of secondary education, associate dean for research, College of Education, and acting dean of the School of Graduate Studies, Utah State University, Logan. He has been president of the National Council for the Social Studies and has received NCSS’s Citation for Exemplary Research. His numerous books and articles include materials for students, research reports, and discussion of educational rationale-building, rationales for social studies education, and research philosophy.  相似文献   
10.
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