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   13675篇
  免费   114篇
  国内免费   122篇
教育   9014篇
科学研究   1672篇
各国文化   89篇
体育   1742篇
综合类   19篇
文化理论   170篇
信息传播   1205篇
  2021年   79篇
  2020年   159篇
  2019年   206篇
  2018年   957篇
  2017年   948篇
  2016年   727篇
  2015年   233篇
  2014年   249篇
  2013年   1582篇
  2012年   283篇
  2011年   518篇
  2010年   468篇
  2009年   358篇
  2008年   390篇
  2007年   488篇
  2006年   200篇
  2005年   249篇
  2004年   515篇
  2003年   432篇
  2002年   362篇
  2001年   402篇
  2000年   255篇
  1999年   163篇
  1998年   106篇
  1997年   106篇
  1996年   97篇
  1995年   108篇
  1994年   101篇
  1993年   79篇
  1992年   153篇
  1991年   119篇
  1990年   135篇
  1989年   150篇
  1988年   110篇
  1987年   132篇
  1986年   120篇
  1985年   136篇
  1984年   119篇
  1983年   124篇
  1982年   97篇
  1981年   82篇
  1980年   91篇
  1979年   134篇
  1978年   87篇
  1977年   74篇
  1976年   90篇
  1975年   65篇
  1974年   72篇
  1973年   69篇
  1971年   66篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
91.
92.
Adolescent success providing satisfying support in response to a close friend's call in a caregiving task was examined as a potentially fundamental developmental competence likely to predict future social functioning, adult caregiving security, and physical health. Adolescents (86 males, 98 females; 58% White, 29% African American, 8% mixed race/ethnicity, 5% other) were followed from ages 13 to 33 (1998–2021) using multiple methods and reporters. Early caregiving success was found to predict greater self- and partner-reported caregiving security, lower negativity in adult relationships, and higher adult vagal tone. Results are interpreted as advancing our understanding beyond simply recognizing that adolescent friendships have long-term import, to now identifying specific capacities within friendships that are linked to longer-term outcomes.  相似文献   
93.
The evaluation of faculty development programs   总被引:1,自引:0,他引:1  
This article reviews literature pertinent to the evaluation of faculty development programs and presents data from several studies conducted at two institutions. These data were consistent with those previously reported in that faculty participants consistently expressed satisfaction with development services. In addition, one study found that most faculty members voluntarily took some action to improve their instructional effectiveness, though only a minority pursued these efforts in depth. Volunteers who worked intensively with a faculty development consultant improved more on objective measures of effectiveness than did those who were only superficially involved in improvement efforts; those who received no consultative assistance failed to improve significantly. Evidence from a final study provided a control for faculty motivation and led to the conclusion that improvement was contingent both on faculty desire to improve and on the availability of professional assistance.  相似文献   
94.
95.
96.
This investigation compares the effectiveness of two types of inservice training offered through the Arizona Portal School Program. Both methods were designed to provide teachers with positive attitudes toward activity-centered energy education. The methods differed in length and energy-related content with one course running for 5 sessions and the other for 15 sessions. The longer course placed more emphasis on content knowledge. Three types of attitudes were assessed: attitudes toward curricular change, opinions on energy concepts, and beliefs about science education. Although the longer course had a more positive effect on the participants' views of and willingness to participate in curricular change and the shorter course had a more positive effect on the participants' views of teaching activity-oriented science, both courses produced the same type of change in the participants' views of energy issues.  相似文献   
97.
Rats shocked once by a stationary, wire-wrapped prod mounted on the wall of the test chamber incorporated sand, wooden blocks, or commercial bedding material on the floor of the chamber into a defensive response. They moved the available material toward and over the shock prod in all three conditions, adapting the response topography to the particular demands of the available material. In the sand and bedding conditions, the rats buried the prod by pushing and spraying piles of the material with snout and forepaws, whereas, in the blocks condition they picked up the blocks with their teeth and placed them individually around the prod. In Experiment 2, the rats buried the shock prod with blocks even when they had to first carry the blocks to the prod from the back of the chamber. Thus, conditioned defensive burying is not a simple, reflexive response to objects paired with a painful stimulus: it is a complex behavioral sequence that can vary as a function of the availability of burying materials.  相似文献   
98.
99.
Two experiments are reported comparing performance in dominant and submissive rats as determined by a food-competition procedure. Ss in Experiment I were either trained to criterion or overtrained before being reversed on a visual discrimination task. Although the two groups did not differ significantly in learning the initial task, the dominant Ss were significantly slower on reversal than the submissives. Experiment II, which utilized a tandem runway, showed that when the reinforcer which maintained the running response was not available in the first goalbox, submissive rats responded with a greater increase in running speed in the second runway than dominant rats. These findings were discussed as reflecting motivational differences between dominant and submissive rats.  相似文献   
100.
The example of teachers not seeking counselling was used. Some reasons for this situation were given as well as one possible way to change it by providing early information and training during the students' regular studies. My hope is that if teachers have the necessary information, abilities and positive experiences, when they have problems, it should be easier for them to use counsellors than it is for other today.Teachers were used as an example of how one group could be encounraged to make use of counsellors. However, similar strategies could be used with other groups whose jobs involve high personal stress (for example social workers, medical doctors etc.). The example of teachers was also used to show how change can be introduced within a system. Here it might be useful to develop the ability to work with a counsellor during the regular education, so that it becomes part of their understanding of their professional role.  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