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   7480篇
  免费   295篇
  国内免费   2篇
  7777篇
  2021年   60篇
  2020年   112篇
  2019年   130篇
  2018年   165篇
  2017年   185篇
  2016年   177篇
  2015年   156篇
  2014年   185篇
  2013年   895篇
  2012年   291篇
  2011年   307篇
  2010年   181篇
  2009年   218篇
  2008年   301篇
  2007年   291篇
  2006年   264篇
  2005年   273篇
  2004年   257篇
  2003年   241篇
  2002年   242篇
  2001年   110篇
  2000年   106篇
  1999年   116篇
  1998年   128篇
  1997年   88篇
  1996年   93篇
  1995年   98篇
  1994年   86篇
  1993年   77篇
  1992年   76篇
  1991年   77篇
  1990年   62篇
  1989年   67篇
  1988年   63篇
  1987年   64篇
  1986年   57篇
  1985年   79篇
  1984年   81篇
  1983年   73篇
  1982年   62篇
  1981年   66篇
  1980年   66篇
  1979年   48篇
  1978年   67篇
  1977年   60篇
  1976年   70篇
  1975年   66篇
  1974年   64篇
  1973年   45篇
  1972年   46篇
排序方式: 共有7777条查询结果,搜索用时 15 毫秒
991.
992.
993.
994.
The purpose of this study is to evaluate the extent to which a model of social support may help explain the low suicide rate of Black females. The data are taken from the National Institute of Mental Health's Epidemiologic Catchment Area Study 1980–1985 (United States). The LISREL model examines the direct and indirect effects of the background characteristics on attempted suicide as mediated by emotional state. Results indicate evidence that for Black and White males and females, finding emotional and psychological support in friends and family members helps to safeguard against suicide. The most substantial finding is that for all race/sex categories, seeking support from friendship and familial resources is negatively related to attempted suicide, whereas seeking support from professional resources is associated with an increase in the likelihood of a suicide attempt. This increased likelihood of attempted suicide may be reflecting populations members' resistance to seeking professional help until their emotional state has severely deteriorated.  相似文献   
995.
996.
After generating an idea we believe is original, we want it to be credited as original and receive recognition for it. So, we would be upset if its originality were questioned, or if our link to that intellectual self-extension were threatened, and we would cope with self-protective strategies. This rationale prompted an experiment with seventy-five female undergraduates. They (P) were to imagine drafting a paper for submission to a national creativity fair proposing a novel method for determining the structure of things, but then decided against submitting it. Fellow-participant, O, learning of P's decision to withdraw, borrows P’s draft. Later, P submits a revised, retitled draft that, unfortunately, goes astray. Still later P discovers that O, without P's knowledge and consent, submitted a copy of P’s original draft to the fair, listing O’s name, both names, or P’s name as author(s), and that the idea was or was not judged as original. Origination and recognition credit allocation had predicted effects on P’s emotional reaction, evaluation of the judges’competence, and of O’s trustworthiness. Unexpect-edly low self-evaluated creativity and sociability, and low desire for future collabora-tion, were obtained when recognition went to P and O jointly. We discuss the applica-bility of belief agreement-attraction and cognitive balance models, of imitation as flattery, of self-esteem as a moderator, and whether our results are culture-bound. Finally, we note how the reactions hint at conflict between inclinations toward altru-ism versus narcissistic self-interest when it comes to sharing one’s self-generated intellectual products with others.  相似文献   
997.
One objective of the present study was to further establish the external validity for a model on spurned helpers' reactions through examining the spurning-burnout linkage in practicing nurses. A second objective was to explore whether or not social support from one's supervisor and one's colleague could reduce the negative impact of spurn-ing on burnout. The last objective was to assess if workload would add to the effects of spurning on burnout. One-hundred seventy-two practicing nurses in Hong Kong responded to a questionnaire measuring the variables of interest. The results revealed once again the adverse effects of spurning on burnout, and that peer support and workload served as important moderators.  相似文献   
998.
Research has consistently shown that children with severe conduct problems often exhibit intellectual deficits, especially in their verbal abilities. We investigated whether or not this finding only applies to certain subgroups of children with severe conduct problems. In a sample of 117 clinic-referred children between the ages of 6 and 13, we assessed for Oppositional Defiant Disorder (ODD) and Conduct Disorder (CD) symptoms using a structured diagnostic interview with each child's parent and teacher, callous and unemotional traits using parent and teacher ratings, and intellectual functioning using a standard individually administered intelligence test. Children with an ODD or CD diagnosis who did not show callous and unemotional traits showed a deficit on subtests measuring verbal reasoning ability relative to a clinic control group. Children with an ODD or CD diagnosis who also showed callous and unemotional traits did not show a verbal deficit and, in fact, showed a trend toward having weaker nonverbal abilities. These results highlight the importance of recognizing distinct subgroups of children with severe conduct problems when studying potential intellectual deficits in these children.  相似文献   
999.
The preceding commentary by Louis Charland suggests that traditional cognitive views of decision-making competence err in not taking into account patients' emotional capacities. Examined closely, however, Charland's argument fails to escape the cognitive bias that he condemns. However, there may be stronger arguments for broadening the focus of competence assessment to include emotional capacities, centering on the ways in which emotions aid humans in processing information. Before emotional capacities are added to the list of functions essential for decisional competence, though, the feasibility and utility of such a reorientation must be demonstrated.  相似文献   
1000.
Genetic testing for inherited cancer susceptibility, based on the recently identified. BRCA1 and BRCA2 genes, will soon be available on a large scale. However, at present, genetic test results do not lead to clearly indicated diagnostic or preventive measures, and the nature of the psychological impact of BRCA1/2 testing is still largely unknown. This uncertainty, combined with preliminary evidence suggesting significant individual differences in reactions to genetic susceptibility feedback, constitutes a unique challenge for any individual contemplating such testing. We outline the nature of this challenge and then propose an intervention strategy designed to help individuals make deeply processed and psychologically well-informed decisions with regard to their genetic susceptibility. The intervention is guided by recent research findings and theory on the cognitive–emotional processing of cancer-risk information. Specifically, the goal is to prepare the individual for genetic testing by (1) cognitively and emotionally activating, or preliving, the individual's potential reactions to testing feedback; (2) facilitating accurate appraisal of the individual's cognitive–emotional reactions; and (3) enabling the individual to process these reactions through the use of well-established clinical techniques.  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