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   28769篇
  免费   857篇
  国内免费   14篇
  2020年   265篇
  2019年   257篇
  2018年   502篇
  2017年   540篇
  2016年   624篇
  2015年   388篇
  2014年   409篇
  2013年   1958篇
  2012年   982篇
  2011年   1005篇
  2010年   489篇
  2009年   480篇
  2008年   681篇
  2007年   682篇
  2006年   603篇
  2005年   1774篇
  2004年   1120篇
  2003年   864篇
  2002年   629篇
  2001年   789篇
  2000年   800篇
  1999年   605篇
  1998年   273篇
  1997年   235篇
  1992年   480篇
  1991年   452篇
  1990年   516篇
  1989年   466篇
  1988年   434篇
  1987年   450篇
  1986年   453篇
  1985年   460篇
  1984年   368篇
  1983年   326篇
  1982年   244篇
  1981年   221篇
  1979年   431篇
  1978年   290篇
  1977年   263篇
  1976年   240篇
  1975年   373篇
  1974年   416篇
  1973年   387篇
  1972年   358篇
  1971年   320篇
  1970年   292篇
  1969年   343篇
  1968年   383篇
  1967年   345篇
  1966年   348篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
A critical application of Ruddick's model of maternal thinking is the best way to grapple with the ethical dilemmas posed by sex-selective abortion which I view as a "moral mistake." Chief among these is the need to be sensitive to local cultural practices in countries where sex-selective abortion is prevalent, while simultaneously developing consistent international standards to deal with the dangers posed by the use of sex-selective abortion to eliminate female fetuses.  相似文献   
982.
983.
This study examined 10 factors and their relation to the life satisfaction of single middle-aged professional women. The proposed regression model, which included job satisfaction, gender identity, locus of control, social support, health, financial resources, leisure-time activities, sexual satisfaction, and regrets regarding life circumstances, was explored through a questionnaire. Questionnaires were administered to single professional women in higher education institutions. Responses were received from 152 women. Performance on life satisfaction was significantly explained by recourse to the variables of job satisfaction, internal locus of control, regrets regarding life circumstances, sexual satisfaction, and leisure-time activities.  相似文献   
984.
WHO IS HAPPY?   总被引:6,自引:0,他引:6  
A flood of new studies explores people's subjective well-being (SWB) Frequent positive affect, infrequent negative affect and a global sense of satisfaction with life define high SWB These studies reveal that happiness and life satisfaction are similarly available to the young and the old, women and men, blacks and whites, the rich and the working-class. Better clues to well-being come from knowing about a person's traits, close relationships, work experiences, culture, and religiosity. We present the elements of an appraisal-based theory of happiness that recognizes the importance of adaptation, cultural world view, and personal goals  相似文献   
985.
986.
The present study assessed the role of context in the acquisition and transfer of a mathematical strategy. One hundred and six children were assigned to four conditions: direct strategy instruction, guided discovery, direct teaching plus discovery, or a control condition. The intervention consisted of fourteen sessions during which the number-family strategy, useful for addition and subtraction, was taught. Third grade students in the guided discovery condition performed better than those in the direct instruction condition on far transfer problems that measured deep conceptual understanding. Students who had total or partial exposure to guided discovery held stronger beliefs and adopted more positive goals about the importance of mathematical understanding and peer collaboration, attributed less importance to task extrinsic reasons for success, and reported greater use of deep processing strategies than students exposed to direct, explicit instructions. Finally, students in the discovery conditions were able to communicate more effectively during problem solving than students in the direct instructions condition.  相似文献   
987.
Product manuals have been virtually ignored in published research despite their relevance to consumer satisfaction and marketplace safety. This study examines self-efficacy (perceptions of capabilities related to operating a product) and how it influences the effectiveness of and is also influenced by three safety message formats commonly used in product manuals (i.e., 1. safety messages presented in list format at the front of the manual; 2; safety messages presented by semantic similarity interspersed throughout the manual—chunked format, and 3. safety messages presented in a combined format—both list and chunked). As anticipated, pre-exposure self-efficacy was a significant covariate which was found to be positively related to post-exposure self-efficacy and negatively related to information evaluation. Further, controlling for pre-exposure self-efficacy, post-exposure self-efficacy was significantly lower in the combined (list plus chunked) condition. Findings of this research have important implications for the practice of repeating safety warnings and future research in the consumer information domain.Authors are listed in alphabetical order. This study was supported by an Illinois State University Research Grant.  相似文献   
988.
989.
Abstract— Does group discussion and deliberation on one issue or task influence the members' decisions or opinions on other issues? In contrast to past research looking solely at changes in responses to the same item discussed by the group, this study examined whether group interaction results in members changing the way they make judgments on related items in the future. The results show that group discussion and consensus on one set of judgments led to a significant convergence of judgmental strategies that extended to a related (but different) set of judgments the members made later as individuals.  相似文献   
990.
We examined the nature of referrals to a health center-based pediatric psychology service from 1990 to 1993 and assessed the satisfaction of health professionals with these services. Archival evaluation of 1467 records showed that over half of the consultation requests came from general pediatrics, pediatric neurology, and surgical services and that 70% of the psychological services were delivered on an outpatient basis. The most frequent referrals were for cognitive/neuropsychological evaluation and externalizing behavior problems. Pediatric psychology trainees were involved in 94% of the consultations. Survey of health professionals (n = 143) indicated very high overall satisfaction with the quality of services delivered. Presenting problems yielding the greatest likelihood for future consultation requests were behavior problems, child abuse, coping with illness, and depression/suicide. Results are discussed in the context of previous evaluations of pediatric psychology services and recommendations for future evaluation research.  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