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   4530篇
  免费   257篇
  国内免费   1篇
  4788篇
  2024年   10篇
  2023年   71篇
  2022年   54篇
  2021年   88篇
  2020年   130篇
  2019年   125篇
  2018年   221篇
  2017年   225篇
  2016年   221篇
  2015年   132篇
  2014年   169篇
  2013年   632篇
  2012年   353篇
  2011年   349篇
  2010年   202篇
  2009年   110篇
  2008年   300篇
  2007年   237篇
  2006年   229篇
  2005年   146篇
  2004年   103篇
  2003年   92篇
  2002年   99篇
  2001年   26篇
  2000年   71篇
  1999年   42篇
  1998年   31篇
  1997年   23篇
  1996年   25篇
  1995年   11篇
  1994年   27篇
  1993年   13篇
  1992年   16篇
  1991年   25篇
  1990年   21篇
  1989年   19篇
  1988年   13篇
  1987年   12篇
  1985年   9篇
  1984年   13篇
  1983年   11篇
  1979年   7篇
  1978年   7篇
  1977年   5篇
  1976年   4篇
  1975年   4篇
  1974年   7篇
  1973年   5篇
  1968年   4篇
  1966年   4篇
排序方式: 共有4788条查询结果,搜索用时 0 毫秒
921.
922.
The article presents a personal history of European social psychology as advanced by the European Association of Experimental Social Psychology during the last twenty years. It is argued that this association did indeed create a new forum for European social psychologists through organizing summerschools, general meetings, workshops, east—west conferences and through the foundation of a scientific journal and a series of monographs. The Association may also have promoted a different perspective in social psychological research by emphasizing more the collective nature of social behaviour rather than interpersonal processes and by favouring substance over method.  相似文献   
923.
Spontaneously hypertensive rats (SHRs) and the normotensive Wistar/Kyoto (WKY) rat were observed, along with Wistar rats (which represent the parent strain), on various open-field behaviors. All three strains were subsequently exposed to the activity-stress (A-S) ulcerogenic procedure. SHR and Wistar rats were very active in most open-field measures as compared with WKY rats, but only SHRs were active during the A-S treatment. WKY rats were very ulcer prone and had significantly more ulcers than SHRs, which in turn had more ulcers than Wistar rats. It was anticipated that Wistar rats would resemble the WKY rats, but in most measures the Wistars resembled the SHRs. The study suggests that although WKY rats function as an appropriate control for hypertension studies, these rats may be inappropriate as controls for other physiological and behavioral studies.  相似文献   
924.
925.
Changes in scores on the State-Trait Anxiety Inventory for Children for a sample of 534 pubertal adolescents were longitudinally studied over a period of 4 years. Biological development and other variables were investigated. For the 310 boys, A-trait scores decreased significantly with age. The 224 girls showed significantly higher scores than boys in all years of the study. No significant relationship was found between anxiety and pubertal maturity. The year-to-year persistence in symptomatology of anxiety ranged between 55.6% and 66.1% for girls and between 48.5% and 53.1% for boys. Girls showed bi- and tri-annual persistence between 31% and 50%, and boys between 13% and 27%. Neuroticism scores formed the best predictor of A-trait scores. Symptomatology of anxiety is not transient during early adolescence, so personality may provide a risk indicator in the development of anxiety.  相似文献   
926.
In two experiments, the perceptual similarity between a strong tonal melody and various transpositions was investigated using a paradigm in which listeners compared the perceptual similarity of a melody and its transposition with that of the same melody and another transposition. The paradigm has the advantage that it provides a direct judgment regarding the similarity of transposed melodies. The experimental results indicate that the perceptual similarity of a strong tonal melody and its transposition is mainly determined by two factors: (1) the distance on the height dimension between the original melody and its transposition (pitch distance), and (2) the distance between keys as inferred from the circle of fifths (key distance). The major part of the variance is explained by the factor pitch distance, whereas key distance explains only a small part.  相似文献   
927.
928.
Da Silva  Jairo José 《Synthese》1997,110(2):277-296
In this paper I discuss the version of predicative analysis put forward by Hermann Weyl in Das Kontinuum. I try to establish how much of the underlying motivation for Weyl's position may be due to his acceptance of a phenomenological philosophical perspective. More specifically, I analyze Weyl's philosophical ideas in connexion with the work of Husserl, in particular Logische Untersuchungen} and Ideen .I believe that this interpretation of Weyl can clarify the views on mathematical existence and mathematical intuition which are implicit in Das Kontinuum.  相似文献   
929.
A large, as yet unfinished project conducted by the "Centro Psicoanálisis y Sociedad" concerns the use of psychoanalytic methods in social research. Case excerpts are presented to illustrate typical forms of the subjective processing of migration and marginalization.  相似文献   
930.
Green solved the problem of least-squares estimation of several criteria subject to the constraint that the estimates have an arbitrary fixed covariance or correlation matrix. In the present paper an omission in Green's proof is discussed and resolved. Furthermore, it is shown that some recently published solutions for estimating oblique factor scores are special cases of Green's solution for the case of fixed covariance matrices.  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