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   18697篇
  免费   904篇
  国内免费   15篇
  2021年   151篇
  2020年   259篇
  2019年   291篇
  2018年   427篇
  2017年   429篇
  2016年   437篇
  2015年   320篇
  2014年   363篇
  2013年   1494篇
  2012年   658篇
  2011年   732篇
  2010年   428篇
  2009年   407篇
  2008年   552篇
  2007年   539篇
  2006年   447篇
  2005年   393篇
  2004年   393篇
  2003年   378篇
  2002年   394篇
  2001年   741篇
  2000年   734篇
  1999年   487篇
  1998年   209篇
  1997年   188篇
  1996年   161篇
  1995年   155篇
  1993年   147篇
  1992年   381篇
  1991年   336篇
  1990年   365篇
  1989年   350篇
  1988年   335篇
  1987年   303篇
  1986年   327篇
  1985年   311篇
  1984年   258篇
  1983年   207篇
  1979年   206篇
  1978年   177篇
  1975年   195篇
  1974年   252篇
  1973年   205篇
  1972年   208篇
  1971年   174篇
  1970年   152篇
  1969年   205篇
  1968年   205篇
  1967年   164篇
  1966年   188篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
891.
The effects of EMG biofeedback training on cursive handwriting were investigated for 4 girls and 5 boys in Grade 4. A significant reduction in EMG between the first baseline session and the last training session was obtained. Four of 5 characteristics of handwriting improved significantly. The need for carefully designed research comparing EMG biofeedback training and relaxation training was indicated. A self-control factor in handwriting was hypothesized.  相似文献   
892.
64 learning disabled and 12 minimal brain-damaged children were evaluated by their teachers on 11 categories of behavior. Analysis showed that behavioral characteristics associated with hyperactivity did not differentiate among subjects. Teachers rated poor motor coordination as the outstanding trait of this sample.  相似文献   
893.
894.
A comparison was made of the scores of 171 Japanese boys and 156 Japanese girls, and of 204 English boys and 165 English girls, on the Visual Aesthetic Sensitivity Test. Also compared were 145 male and 163 female Japanese students, with 38 male and 73 female English students. Japanese children had scores significantly higher than English children, while Japanese students had scores significantly lower than English students. There was little evidence of age increments in score for either group of children. Difficulty levels of the 42 item-pairs were very similar in the two cultures, as were internal (split-half) reliabilities. It is concluded that cultural differences between the two countries, as far as visual aesthetic appreciation is concerned, seem at best minimal.  相似文献   
895.
The influence of LSD and 5-methyoxy-N.N.-dimethyltryptamine (MeODMT) on the RNA synthesis was verified in cell nuclei from rat's brain. LSD and 5-MeODMT inhibited the RNA synthesis within the test period of 30 minutes. This inhibition possibly participates in adaptive neuronal processes occurring in the course of psychoses.  相似文献   
896.
The scientific basis of psychotherapeutic findings involves a number of difficulties which are above all connected with the insufficient state of basic research in this field. In this situation, significant advances can only be expected on the basis of a systematic long-term investigation and research programme. This applies in particular to the problems of personality and efficiency diagnostics and to group process research. On the basis of some intermediate results, it is shown that by the combined and systematic use of procedures a number of possibilities for the differentiated recording of the complex processes in therapeutic groups can be obtained.  相似文献   
897.
898.
899.
The antidepressants trimipramine and imipramine were compared within the framework of a multiclinical study performed under the conditions of a controlled clinical experiment. There has been found a time-different remission of affective und psychomotoric symptoms. The panthymoleptic action of trimipramine and other antidepressants is discussed with reference to these results. Trimipramine influences psychotic states, especially if in depression anxiety is combined with agitation, also in hypochondriac forms of depression.  相似文献   
900.
This paper reports four experiments on the effects of word age of acquisition in verbal tasks. In all cases, multiple-regression analysis was used to assess the relative effects of age as opposed to other potentially relevant word attributes. Experiments 1 and 2 concerned lexical memory tasks. In Experiment 1, picture naming speeds were found to be mainly determined by picture codability and name age of acquisition. In Experiment 2, it was found that when subjects produced words in response to bigram cues, early acquired target words were more likely to be produced than later acquired words, even when frequency and other word attributes were taken into account. The remaining two experiments dealt with the episodic memory tasks of free recall and recognition. No age effects were found in these tasks. It was concluded that early age of acquisition facilitates retrieval from lexical memory but has no significant effect in episodic memory tasks.  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