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   65093篇
  免费   2476篇
  国内免费   17篇
  67586篇
  2019年   763篇
  2018年   1073篇
  2017年   1040篇
  2016年   1113篇
  2015年   795篇
  2014年   986篇
  2013年   5552篇
  2012年   1744篇
  2011年   1850篇
  2010年   1140篇
  2009年   1123篇
  2008年   1680篇
  2007年   1568篇
  2006年   1475篇
  2005年   1286篇
  2004年   1257篇
  2003年   1232篇
  2002年   1212篇
  2001年   2001篇
  2000年   1881篇
  1999年   1445篇
  1998年   723篇
  1996年   750篇
  1995年   718篇
  1994年   700篇
  1992年   1330篇
  1991年   1256篇
  1990年   1217篇
  1989年   1159篇
  1988年   1160篇
  1987年   1100篇
  1986年   1134篇
  1985年   1158篇
  1984年   997篇
  1983年   872篇
  1982年   713篇
  1981年   705篇
  1979年   1011篇
  1978年   753篇
  1976年   688篇
  1975年   909篇
  1974年   943篇
  1973年   1018篇
  1972年   907篇
  1971年   808篇
  1970年   768篇
  1969年   772篇
  1968年   952篇
  1967年   827篇
  1966年   809篇
排序方式: 共有10000条查询结果,搜索用时 6 毫秒
941.
942.
The theoretical basis for the repetition of themes in related groups is addressed by describing similar processes in four systems: inpatient psychiatric ward, inpatient psychotherapy group, supervisory group, and group psychotherapy division. The principles of general system theory help explain process parallels in allied groups and illuminate group process.  相似文献   
943.
944.
945.
A report on the clinical testing of the lithium-retard medicament Contemnol (Spofa). It details the way lithium-retard treatment is objectively and subjectively superior to the earlier and still current general lithium treatment.  相似文献   
946.
The results of an evaluation of the perfusion scintigraphy findings of 350 hospitalised neurological patients and 55 more strictly selected neurosurgical patients with cerebrovascular complaints, revealed an accuraty of 83%, a sensitivity of 89%, and a specificity of 83%. The selection of the patients had no influence on the results as a whole. Compared with contrast-medium angiography, incorrect diagnosis must be expected in 17% of the cases. This includes erroneous negative findings in 10% of the cases. Grounds for misinterpretations are suggested, and the biological and methodological limitations of the method are set forth.  相似文献   
947.
The use of computer based diagnostic decision and artificial intelligence are discussed in relation to the problems of validity and reliability of psychiatric diagnoses. The authors suggest a definition of a computer aided classificator as an existent decision system for an automatically analysis of findings.  相似文献   
948.
This article attempts to apply a theory of aggression as motivation to overcome obstacles to the understanding of phobic states and their formation. The role of aggression in the genesis of phobic conditions is discussed, and the traditional analytic view of aggression as instinctual drive is contrasted with a motivational approach. The motivational view offers the advantage of a clearer understanding of the stimulus contexts, representational connections, and both real and imaginary object connections that are lacking in the more traditional understanding of aggression as a biological drive.  相似文献   
949.
950.
An investigation into the diagnostic value of psychometric methods for the diagnosis of depressive states involved five psychometric questionnaires, one concentration test procedure, and one problem-solving approach to register cognitive processes. The data obtained for 80 depressive patients of varied aetiology were compared with those of sample of 80 neurotics without depressive aberration. Even univariate comparisons revealed statistically significant differences between the two samples. Multivariate methods (factor analysis, discriminative analysis) yielded more differentiated information. The "Scale for depression depth measurements" was found to be of particular diagnostic relevance; it was standardized for the time being.  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