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   27865篇
  免费   926篇
  国内免费   13篇
  28804篇
  2019年   271篇
  2018年   333篇
  2017年   377篇
  2016年   414篇
  2015年   325篇
  2014年   383篇
  2013年   2031篇
  2012年   697篇
  2011年   728篇
  2010年   456篇
  2009年   486篇
  2008年   662篇
  2007年   611篇
  2006年   550篇
  2005年   542篇
  2004年   514篇
  2003年   501篇
  2002年   529篇
  2001年   712篇
  2000年   704篇
  1999年   506篇
  1998年   283篇
  1997年   267篇
  1992年   501篇
  1991年   473篇
  1990年   481篇
  1989年   481篇
  1988年   434篇
  1987年   442篇
  1986年   467篇
  1985年   517篇
  1984年   444篇
  1983年   394篇
  1982年   295篇
  1981年   352篇
  1980年   276篇
  1979年   463篇
  1978年   363篇
  1977年   325篇
  1976年   301篇
  1975年   450篇
  1974年   490篇
  1973年   516篇
  1972年   425篇
  1971年   416篇
  1970年   389篇
  1969年   416篇
  1968年   506篇
  1967年   490篇
  1966年   467篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
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   
994.
Behavioral observation scales (BOS) were developed for first line foremen. BOS are similar to behavioral expectation scales (BES) in that both are based on a job analysis procedure known as the critical incident technique. However, the BOS differ from BES in that, in developing BOS, (a) a group of individuals is observed and rated on a five-point scale as to the frequency with which they engage in the behavior described by each incident/statement, (b) a total score for each individual is determined by summing the observer's responses for each behavioral item, and (c) an item analysis (or factor analysis, depending upon the sample size) is conducted to select the most discriminating items. Those items with the highest correlations with the total score on a scale are retained to form one behavioral criterion or scale (BOS).  相似文献   
995.
Four cases of brain-stem tumor were described, in which myokymias were electromyographically derived from the region of several cerebral nerves. An attempt is made to interpret the effects of twitching by reference to the electromyogram. Myokymias are a positive indication of organic brain stem damage. The use subtle techniques of electromyographic examination shows that this muscular hyperkinesis is not so infrequent a symptom as is generally believed.  相似文献   
996.
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   
997.
H Dahmer 《Psyche》1979,33(11):1039-1045
  相似文献   
998.
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   
999.
Subjects classified either the numerosity or numeric value of elements in successive stimulus displays. In separate experiments, responses were indicated by oral naming, card sorting, manual tapping, and oral “tapping.” Incongruent levels of numeric value slowed naming and sorting, but not tapping, when numerosity was the cue for responding. Incongruent numerosity slowed tapping, but not naming and sorting, when numeric value was the cue. Changes in stimulus response mapping may thus critically alter the ability to ignore an irrelevant stimulus dimension.  相似文献   
1000.
This study compared the follow-up incidence of court-recorded nonstatus offenses for three groups of adolescent children. These children had been seen 2 to 9 years earlier for problems with aggression in the home (N = 21), for stealing problems (N = 25), or for normative comparisons (N = 14). The results showed that 77% of the children with stealing problems had court-recorded offenses. This was significantly higher than the aggressive children, whose rate did not differ from the normative sample. These findings suggested that young aggressive children were not at risk for adolescent court contact. Instead, it was the young child with identified stealing problems who was highly likely to become an official delinquent. It also appeared that parental reports of stealing events constituted a predictive measure of later criminal acts.  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