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   8771篇
  免费   68篇
  国内免费   7篇
教育   6474篇
科学研究   728篇
各国文化   147篇
体育   526篇
综合类   5篇
文化理论   105篇
信息传播   861篇
  2021年   55篇
  2020年   84篇
  2019年   155篇
  2018年   207篇
  2017年   237篇
  2016年   220篇
  2015年   171篇
  2014年   216篇
  2013年   2047篇
  2012年   172篇
  2011年   192篇
  2010年   182篇
  2009年   158篇
  2008年   200篇
  2007年   205篇
  2006年   188篇
  2005年   191篇
  2004年   177篇
  2003年   154篇
  2002年   147篇
  2001年   126篇
  2000年   126篇
  1999年   133篇
  1998年   113篇
  1997年   117篇
  1996年   118篇
  1995年   147篇
  1994年   121篇
  1993年   106篇
  1992年   114篇
  1991年   106篇
  1990年   102篇
  1989年   107篇
  1988年   98篇
  1987年   96篇
  1986年   88篇
  1985年   99篇
  1984年   105篇
  1983年   99篇
  1982年   109篇
  1981年   82篇
  1980年   61篇
  1979年   74篇
  1978年   77篇
  1977年   85篇
  1976年   67篇
  1975年   56篇
  1974年   59篇
  1973年   60篇
  1971年   44篇
排序方式: 共有8846条查询结果,搜索用时 0 毫秒
61.
62.
63.
64.
65.
66.
This empirical investigation evaluated the outcomes of three models of counselling with students in the elementary school who were identified as having Learning and behavioral problems. It was hypothesized that model one, counselling with parents, teachers and students was the most effective: model two, counselling with teachers and parents was the next most effective and model three, coun selling with students only was the least effective. It was discovered after 5 months of counselling, that although the student reading scores of the combined counselling groups improved significantly in comparison to the control group, no statistically significant change occurred between the counselling models either on student reading or classroom behavior. Model one counselling, however, produced cooperative relationships between teachers, parents and students.The University of British Columbia  相似文献   
67.
68.
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   
69.
Cultural expectations and sex-role standards about reading in Canada, Denmark, England, Finland, Israel, Japan, and U.S.A. were investigated. A picture test showing various activities and objects including reading and books was administered in each country to six sub-samples that approximated to the levels: students in grades I, IV, VIII, and XII, college students, and adults. Subjects had to ascribe the activity or object as being appropriate for either a boy or a girl. The results were consistent with the hypothesis that cultural expectations and sex-role standards about reading are congruent within one country but that they differ between countries. In particular, boys in Canada and the U.S.A. rapidly learn to perceive reading as a feminine activity, whereas Danish and Japanese males at all ages consistently view reading as acceptable masculine behaviour.  相似文献   
70.

Two levels of training (100 vs. 500 trials) and two ages of rats (young and adult) were used in a developmental analysis of the relationship between response strength and the effects of punishment. The apparatus was a Y maze with three discriminably different arms. After 100 or 500 reinforced trials, subjects were shocked each time they responded in one arm. The recovery sessions followed the punishment session. Results from the punishment day indicated that: (a) young rats received a greater amount of shock, and (b) additional training increased the amount of shock received by the young but decreased it in the adults. The recovery data showed that: (a) the suppressive effects of punishment were greater for the adults than for the young, and (b) the recovery scores were not influenced by degree of overtraining. The Age by Overtraining interaction suggested that the relationship between response strength and punishment is age dependent. The age differences found with the amount-of-shock and recovery measures provided additional support for the position that younger rats are less competent than adult rats in inhibiting responses.

  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