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   65687篇
  免费   2700篇
  国内免费   45篇
  68432篇
  2020年   767篇
  2019年   921篇
  2018年   1338篇
  2017年   1346篇
  2016年   1410篇
  2015年   973篇
  2014年   1156篇
  2013年   5619篇
  2012年   2098篇
  2011年   2322篇
  2010年   1369篇
  2009年   1344篇
  2008年   2009篇
  2007年   1977篇
  2006年   1726篇
  2005年   1569篇
  2004年   1540篇
  2003年   1408篇
  2002年   1435篇
  2001年   2245篇
  2000年   2152篇
  1999年   1577篇
  1998年   809篇
  1997年   704篇
  1996年   627篇
  1995年   620篇
  1994年   592篇
  1993年   620篇
  1992年   1275篇
  1991年   1202篇
  1990年   1207篇
  1989年   1101篇
  1988年   1065篇
  1987年   1034篇
  1986年   1052篇
  1985年   1090篇
  1984年   854篇
  1983年   742篇
  1982年   572篇
  1979年   814篇
  1978年   623篇
  1975年   743篇
  1974年   821篇
  1973年   758篇
  1972年   708篇
  1971年   626篇
  1969年   608篇
  1968年   716篇
  1967年   679篇
  1966年   624篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
911.
Central -peripheral organization of needs in women with eating disorders was investigated. Subjects included three clinical groups, totalling 50 female university students, identified as anorectic, bulimic and obese, and two nonclinical control groups, totalling 70 female students. The revised Picture Identification Test (PIT), which measures motivational aspects of Murray-based needs, was administered to all subjects. A new PIT measure, Cenper Index, showed significant differences in central-peripheral organization of needs between clinical and control groups, and among clinical eating disorder groups. The anorectic group differed most from groups on aggression and succorance needs; the bulimic group differed on abasement and defendance needs; and the obese group differed on dominance, exhibition, and gratitude needs.  相似文献   
912.
Temporal lobe epilepsy and certain personality disorders often result in experiences described as religious. TLE research suggests a possible neurological basis for such experiences. Immediately the question arises about the authenticity of these experiences as religious. An experience is authentic if it furthers the authentic growth of the subject, regardless of what triggered it. So pathology may occasion authentic religious experiences, even as history exemplifies. For practical purposes, the further question about God in religious experience is secondary. The exception, miraculous occurrences, should not be granted without sufficient reason. This approach dissolves all conflict between science and faith.  相似文献   
913.
Elpern  Sarah  Karp  Stephen A. 《Sex roles》1984,10(11-12):987-992
Sex Roles - The incidence of depressive disorders among women in our society is considerably higher than it is for men. Several investigators have suggested that this is due to traditional sex...  相似文献   
914.
Female and male children, 67 and 114 months of age, provided ratings of perceived relative competence of male and female stimulus persons who were depicted as engaging in sex-stereotyped professions. Ratings for each of eight occupations were made by allocating 10 plastic chips between the two stimulus persons. After the last trial, children also were asked to recall the occupation last paired with a particular stimulus person. Children at each of three age levels rated as more competent the individual whose sex was consistent with the stereotype for the occupational group presented; the degree of differentiation increased with age. Recall was influenced by the consistency of the stimulus person/occupation pairing with the sex stereotype, but was not related to ratings of competence.A research grant from the University of North Carolina at Charlotte Foundation provided partial support for this research. The authors would like to thank Dr. R. Bruce Irons, principal, and the many teachers at Irwin Open Elementary School who cooperated on this project; William G. Graziano for bringing the chip allocation task to our attention; and Helene A. Hilger for helpful comments.  相似文献   
915.
The idealized physique preferences of a group of 94 male college students were measured and correlated with scales measuring attitudes toward women and personality rigidity. Three hypotheses, derived from sex-role research, were tested and confirmed: (1) Males who have negative attitudes toward women would like most to have a tapering V physique. (2) Males who have a rigid personality structure have stronger preference for an idealized muscular physique than males with more flexible personalities. (3) Males have a generally greater preference for a tapering V physique than women. It was concluded, from the results of this and other studies, that body preference is related to certain aspects of sex-role attitudes.  相似文献   
916.
The present study examined 8-12-year-old children's perceptions of parents' responses to sons and daughters experiencing interpersonal conflicts. In general, the children expected parents to respond in a manner consistent with traditional instrumental-expressive sex-role stereotypes. The implication of these findings for inadequacies in the socialization of interpersonal problem-solving styles in boys and girls is discussed.  相似文献   
917.
Previous research has indicated that success in competitive situations is differentially perceived, considering the level of success and sex of person who succeeded. The amount of projected negative imagery of 100 college students under various degrees of a man's or woman's failure in medical school was investigated in the present study. Data indicated a pervasive tendency to downgrade unsuccessful men in relation to unsuccessful women. The possibility that subjects' responses reflect anxiety about the level of success and failure obtained, rather than anxiety about success and failure in general, is discussed.The authors thank D. F. Ricks for his helpful comments on an earlier draft of this article. Portions of this article were presented at the 6th Annual Conference for Research on Women and Education, Pacific Grove, California, December, 1980.  相似文献   
918.
An instrument was designed to assist mental health professionals in objectively assessing competence to stand trial. Items were empirically derived based on input from multidisciplinary teams of mental health professionals experienced in working with forensic patients in a state hospital. Procedures were adapted from Goldfried and D'Zurella's five-stage behavioral-analytic model for the assessment of social competence. The resulting 15-item audiotaped scale assessed both legal and social competence based on reported responding in jail, in interactions with lawyers, and in the courtroom. Interrater reliability on scoring of responses ranged from .68–.96. High correlations between social and legal competence (.56–.82) demonstrated the likelihood of overlap of these constructs and the importance of directly addressing both. A pilot intervention program was designed from the instrument and implemented with three forensic patients. Failure to demonstrate change in these subjects is briefly discussed, and recommendations for future efforts in this area are made.  相似文献   
919.
It is proposed that society should re-examine its assumptions about suicide. Rational suicide is viewed as an extension of the right to die. After a review of the legal liability of the psychotherapist and psychiatric facility for both inpatient and outpatient suicide, the author presents an analysis of philosophical, ethical, and psychoanalytic arguments for allowing rational suicide. It is argued that emotional pain should be given more legitimacy as a reason for suicide. The decision to live or to die is argued to best rest with the individual.  相似文献   
920.
Postpartum and lactational estrus: a comparative analysis in rodentia   总被引:1,自引:0,他引:1  
Virgin rodents exhibiting cycling estrus have traditionally been used for comparative studies of reproductive behavior. However estrus occurs in other life-history contexts, some of which differ from cycling estrus (CE) in that (a) the female is disposed to behave both maternally and sexually and (b) they result in litter overlap (i.e., the simultaneous gestation and lactation of two litters). In this report, two of these other modes of estrus are examined, with emphasis on their evolutionary and ecological implications. By means of a literature search of the order Rodentia, postpartum estrus (PPE) and lactational estrus (LE) were documented in 15 families, 71 genera, and 141 species. Analysis of these data showed that PPE and LE were nonrandomly distributed across taxa. They were statistically overrepresented in the family Cricetidae and underrepresented in squirrels (Sciuridae) and in pocket mice and kangaroo rats (Heteromyidae). Analysis of the phenotypes by which PPE and LE are achieved suggests important differences between them and CE in several parameters of female reproductive effort and breeding strategy, including maternal and copulatory behavior, optimal timing of litters, and hormonal control of heat and lactation.  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