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   56958篇
  免费   2419篇
  国内免费   21篇
  2020年   721篇
  2019年   826篇
  2018年   1184篇
  2017年   1187篇
  2016年   1249篇
  2015年   909篇
  2014年   1073篇
  2013年   5014篇
  2012年   1987篇
  2011年   2003篇
  2010年   1207篇
  2009年   1230篇
  2008年   1745篇
  2007年   1691篇
  2006年   1535篇
  2005年   1266篇
  2004年   1303篇
  2003年   1259篇
  2002年   1196篇
  2001年   1946篇
  2000年   1816篇
  1999年   1358篇
  1998年   626篇
  1997年   537篇
  1996年   616篇
  1995年   554篇
  1994年   545篇
  1993年   530篇
  1992年   1105篇
  1991年   1022篇
  1990年   999篇
  1989年   960篇
  1988年   936篇
  1987年   863篇
  1986年   859篇
  1985年   907篇
  1984年   732篇
  1983年   631篇
  1982年   480篇
  1979年   759篇
  1978年   565篇
  1975年   607篇
  1974年   681篇
  1973年   703篇
  1972年   606篇
  1971年   564篇
  1970年   483篇
  1968年   609篇
  1967年   531篇
  1966年   506篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Syntactic decoding reaction times of 20 learning disabled children comprising two groups of subjects (mean age of 8 and 13 yr., respectively) were compared to the responses of normal controls matched for age and sex. An analysis of variance procedure showed that the learning disabled children and their normal peers did not differ significantly in responses to the experimental stimuli. This held true regardless of linguistic complexity, suggesting that delays in processing elementary syntactic constructions are not a concomitant of learning disabilities.  相似文献   
992.
Speech-mediated retention in dyslexics   总被引:2,自引:0,他引:2  
Dyslexics (6 to 9 yr. old) and a control group of 12 normal readers (second-graders) were tested on a memory task with rhyming and non-rhyming items. The most important finding is that both groups were penalized by rhyme, indicating speech coding. It was observed that the dyslexics were not less penalized by rhyme than were controls. The present results are compared with those of other recent studies.  相似文献   
993.
994.
86 stutterers' disfluency patterns were examined in relation to their laterality preferences. Results suggest that young stutterers are a heterogeneous group and that specific disfluency variables were not related to ear preferences on a dichotic consonant-vowel listening task.  相似文献   
995.
53 female and 45 male undergraduates were administered the Spatial Antecedents Questionnaire (Activities, Academic Courses, Self-assessments, and Environmental Mapping subscales), the Spatial Dimensionality Test (Embedded Figures, Card Rotations, Paper Folding, Surface Development, Horizontal/Vertical Rotations, and Cube Perspectives subtests), and Revised-Individual Differences Questionnaire of Paivio. Scores from the Academic Courses and Self-assessment scales accounted for the most variability in spatial performance. Visual processing style correlated with performance on spatial tests for men, but not for women. Different patterns of activities and experiences correlated with spatial test performance for men and women.  相似文献   
996.
A laboratory and a field study investigated the biasing effects of subordinate likableness on leaders' attributions for subordinate poor performance and their corrective actions toward subordinates. In the laboratory study, 96 undergraduate students served as leaders and were presented with a vignette describing an incident of poor performance committed by either a liked or a disliked subordinate. Leaders made attributions for the poor performance and then rated the appropriateness of a series of corrective actions. Analyses revealed that leaders made similar attributions for the poor performance of liked and disliked subordinates, but were more inclined to punish a disliked subordinate than a liked subordinate. A second study replicated these findings with 98 leaders in an actual organization. Implications of the results for disciplinary policies are discussed.  相似文献   
997.
998.
The state of health of 135 schizophrenic patients was examined during therapy with a nigrostriatal (Haloperidol) and a mesolimbic (Clozapin) neuroplegic drug, and compared with the situation during treatment without neuroplegics. Among the methods used was the state of health scale of von Zerssen; the neuroleptic threshold was tested using Haase's handwriting test. There was evidence that the patient's health was primarily affected, but individual differential treatment with neuroplegics produced a significant improvement in this important respect. Contrary to Haase, we noticed nothing to convince us of a link between the antipsychotic efficacy of the neuroplegics under investigation and the neuroleptic threshold.  相似文献   
999.
Based on 2130 autopsies with a hypertension it is reported on the hypertensive CNS-lesions. The frequency of encephalomalacia was 12%. By 9.7% was founded brain haemorrhages. The relapse rate of haemorrhages was about 5%. The encephalomalacia existed by way of secondary finding in 24.7%, and the haemorrhage in 2.2%. The investigations showed an important arteriosclerosis by 39.8% in haemorrhages and by 51.6% in brain infarct. It was remarkable by the hypertensive brain haemorrhages a dominant right hemisphere.  相似文献   
1000.
The relationship between endogenous-psychotic and hysterical behavior is presented in this paper on the basis of typical patients' accounts. Various patterns of behavior are revealed: chronic hysterical psychotic syndromes, acute hysterical psychotic syndromes, hysterical exalted psychotic episodes, simulated hysterical psychotic syndromes, hysterical behavior in the attempt to cope with psychosis, and pseudohysterical behavior in endogenous psychoses. The specific aspects of the doctor-patient relationship in the case of these patients are described.  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