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   56878篇
  免费   2123篇
  国内免费   27篇
  2020年   608篇
  2019年   722篇
  2018年   1004篇
  2017年   1109篇
  2016年   1123篇
  2015年   760篇
  2014年   955篇
  2013年   4375篇
  2012年   1775篇
  2011年   1820篇
  2010年   1157篇
  2009年   1091篇
  2008年   1592篇
  2007年   1614篇
  2006年   1432篇
  2005年   1281篇
  2004年   1218篇
  2003年   1156篇
  2002年   1193篇
  2001年   1749篇
  2000年   1729篇
  1999年   1337篇
  1998年   608篇
  1997年   570篇
  1993年   522篇
  1992年   1107篇
  1991年   984篇
  1990年   1066篇
  1989年   960篇
  1988年   975篇
  1987年   928篇
  1986年   949篇
  1985年   919篇
  1984年   795篇
  1983年   738篇
  1982年   561篇
  1981年   525篇
  1979年   894篇
  1978年   646篇
  1977年   573篇
  1975年   743篇
  1974年   821篇
  1973年   852篇
  1972年   678篇
  1971年   638篇
  1970年   571篇
  1969年   680篇
  1968年   780篇
  1967年   708篇
  1966年   647篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
871.
This paper explores the significance of Marie Bonaparte's book, Topsy: The Story of a Golden Haired Chow. The manifest importance of Topsy has been attached to the fact that the Freuds translated it out of gratitude to Bonaparte and because of their love for dogs. Another level of significance emerges when the book is placed in historical context. Topsy elucidates the relationships between Marie Bonaparte, Sigmund Freud, and Anna Freud. It reflects Bonaparte's feelings about Freud's illness and is part of an ongoing dialogue with him. The persistent misplaced emphasis on the "dog story" has obscured the more profound issues. The author suggests that the conflicting needs to appreciate transience and to avoid mourning may account for both the importance of the book and for its obscurity.  相似文献   
872.
873.
Investigating the specific of psychic performance disorders in epileptics structural aspects in addition to quantitative performance differences are considerable. We compared psychometrically obtained performance structures of epileptic children and adults and of parallelised healthy control persons. It became evident, that the performance differentiation hypothesis is to corroborate also in epileptic patients. The psychic performance structure of epileptics is characterized by a lower differentiation level of the basis functions underlining the performances. Our factor analytic investigations emphasize the importance of deceleration of psychic/psychomotoric speed in epileptics as primary basic disorder.  相似文献   
874.
Intrathecal methotrexate-overdosage in the meningosis therapy leads to CNS damages dependent on dose. It was given a own case report and a literature review with clinical symptoms and the therapy in this complication. Neuropathologic findings included demyelinisation und necrosis of the white matter.  相似文献   
875.
876.
877.
Two studies are reported on a new Anger Control Inventory based on a cognitive-behavioral person-situation interaction model. In Study 1, the inventory responses of 118 clinical subjects and 190 normal subjects were correlated with an anger problem criterion based on observable signs. Factor analyses were conducted to clarify the construct base of the inventory. In Study 2, comparisons were made between the inventory responses of 100 spouse batterers and 96 normal subjects. Significant differences between the pretreatment and posttreatment scores of 65 batterers given treatment in anger control were obtained on the inventory scales, which were found to be correlated with the problem criterion and discriminating between the clinical and normal groups. The construct validity and clinical utility of the Anger Control Inventory are discussed.  相似文献   
878.
The purpose of this study was to explore differences in body satisfaction among female adolescents 14 to 18 years of age. Principal components analysis of a body cathexis measure completed by 751 high school cheerleaders indicated that six factors defined the adolescents' attitudes toward their bodies: satisfaction with the midsection and overall appearance, peripheral body parts, hair and face, mouth, hands, and height. An Age X Body Satisfaction multivariate analysis of variance (MANOVA) was conducted; a Bonferroni adjusted alpha of .007 was established for subsequent ANOVAs. Satisfaction with the mouth increased significantly as age increased, and a similar but nonsignificant trend was found for peripheral body parts. The findings contradict previous research reporting no age differences in the body satisfaction of adolescents. Role demands and physical maturation of the cheerleaders may explain differences based on age.  相似文献   
879.
The Threat Index and the Death Anxiety Scale were administered to 228 subjects. Based on the high/low criterion scores, 105 subjects were assigned to the following four groups: (a) high death threat/high death anxiety, (b) high death threat/low death anxiety, (c) low death threat/high death anxiety, and (d) low death threat/low death anxiety. During the experimental phase of the study, subjects viewed a filmstrip on death rituals in various cultures. A recall test was then administered. Results indicated no significant group differences on recall performance. Initial no-show rates for the second part of the experiment were observed in the four groups reflecting a significant negative relationship between death anxiety and initial no-show rates. The possibility of defensive responding on the Death Anxiety Scale was suggested.  相似文献   
880.
To determine whether actual responses of potential comforters in the community differ according to cause of death, 83 college students participated in a structured, individual interview. They were asked demographic questions about themselves, the bereaved, and the deceased, and then about various aspects of how they, and others in the community, responded to the death. Students were grouped by their reports of the cause of death (suicide, homicide, accident, natural anticipated death, or natural unanticipated death). When the death was by suicide or homicide, others were perceived as relatively less supportive of the bereaved person. When the death was by suicide, respondents themselves tended more to blame the bereaved person. When the death was by homicide, the bereaved person was perceived as reacting relatively worse. Potential comforters were relatively more shocked when the death was by homicide or accident.  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