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   20489篇
  免费   421篇
  国内免费   1篇
管理学   2642篇
民族学   111篇
人口学   1799篇
丛书文集   75篇
教育普及   1篇
理论方法论   1852篇
综合类   189篇
社会学   10411篇
统计学   3831篇
  2023年   138篇
  2022年   96篇
  2021年   139篇
  2020年   364篇
  2019年   523篇
  2018年   629篇
  2017年   828篇
  2016年   632篇
  2015年   423篇
  2014年   587篇
  2013年   3662篇
  2012年   754篇
  2011年   710篇
  2010年   521篇
  2009年   418篇
  2008年   559篇
  2007年   513篇
  2006年   540篇
  2005年   431篇
  2004年   445篇
  2003年   369篇
  2002年   380篇
  2001年   489篇
  2000年   435篇
  1999年   420篇
  1998年   324篇
  1997年   275篇
  1996年   291篇
  1995年   295篇
  1994年   256篇
  1993年   265篇
  1992年   314篇
  1991年   306篇
  1990年   292篇
  1989年   261篇
  1988年   240篇
  1987年   212篇
  1986年   235篇
  1985年   255篇
  1984年   221篇
  1983年   204篇
  1982年   164篇
  1981年   133篇
  1980年   160篇
  1979年   172篇
  1978年   139篇
  1977年   115篇
  1976年   89篇
  1975年   92篇
  1974年   96篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
In the first three sections of this paper we present a set of axioms which provide a characterization of an extension of the Banzhaf index to voting games with r alternatives, such as the United Nations Security Council where a nation can vote “yes”, “no”, or “abstain”. The fourth section presents a set of axioms which characterizes a power index based on winning sets instead of pivot sets. Received: 4 April 2000/Accepted: 30 April 2001  相似文献   
12.
Concurrent and longitudinal associations between peer crowd affiliation and internalized distress were examined in a sample of 246 youth (148 girls, 98 boys). Children completed measures of depression, social anxiety, loneliness, and self‐esteem when they were in grades 4 to 6 (Time 1), and again 6 years later during adolescence (grades 10 – 12; Time 2). At Time 2, adolescents also reported their self‐concept and their identification with reputation‐based peer crowds, including Populars, Jocks, Brains, Burnouts, Non‐Conformists, and None/Average crowds. Results indicated that adolescents' report of peer crowd affiliation was concurrently associated with self‐concept and levels of internalizing distress. Follow‐back analyses of internalizing trajectories revealed that Populars/Jocks had experienced significant declines in internalizing distress across development, whereas Brains exhibited some increases in internalizing distress between childhood and adolescence.  相似文献   
13.
The hypothesis that irritability and contingency detection are negatively correlated was examined in thirty‐one 6‐month‐old infants. Observation and maternal report‐based assessments of irritability were correlated with both a criterion score and a continuous score of contingency detection. Results indicated that greater irritability in infants was associated with lower contingency detection scores. Discussion focuses on identifying processes by which the 2 constructs may be associated.  相似文献   
14.
TOOLS OR TOYS? THE IMPACT OF HIGH TECHNOLOGY ON SCHOLARLY PRODUCTIVITY   总被引:1,自引:0,他引:1  
We examine the impact of communication technology on scholarly productivity by considering patterns of coauthored economics articles. Using articles in three major economics journals from 1970–79 and 1992–96, we find (1) sharp growth from distant coauthorships (authors not in the same metropolitan area prior to publication), as the theory predicts, and, contrary to theory, (2) lower productivity of distant than close-coauthored works and no decline in their relative disadvantage. These findings are reconciled by noting that high technology has aspects of a consumer good. The relative productivity of solo-authored articles has decreased, perhaps explaining the secular increase in coauthorship.  相似文献   
15.
16.
Using data from a national survey of pharmacists who are members of the American Pharmaceutical Association, we examine the union voting intentions of employee pharmacists. We find that union instrumentality regarding professionalism is a primary predictor of union voting intent among these employees. In addition, this predictor mediates the relationship between the level of professionalism at a pharmacist’s current employment situation and his or her expected union vote. Also important to union voting intent are respondent beliefs about union instrumentality regarding pecuniary issues, prior union experience, as well as overall job satisfaction. Implications for employers, unions, and researchers are drawn. We thank Mary Graham, Jann Skelton, Paul Swiercz, Terry Thomason, and participants at the Seventh Bar-gaining Group Conference at Michigan State University for their comments on earlier versions of this paper. This research was made possible by a grant from the American Pharmaceutical Association.  相似文献   
17.
In a longitudinal, community-based study, adolescent protective factors for those at risk for depression were identified that were associated with resilient outcomes in young adulthood. For those with childhood risk factors for major depression, significant protective factors included family cohesion, positive self appraisals, and good interpersonal relations. Findings may help inform the development of prevention and treatment programs for adolescents vulnerable to depression. Implications for future research and clinical practice are discussed.  相似文献   
18.
This paper analyses the capacities of the parents in the Harry Potter stories, written by J. K. Rowling, from a social care perspective. It argues that there is a synergy between what the social sciences have discovered about ‘good enough parenting’ and the insights that can be gathered from entering the imaginative world of literature. This is illustrated by a discussion of the qualities of the parents and parent substitutes in the four books published between 1997 and 2000. It concludes that fictional experiences of childhood create empathy in the reader and enable us to confront the need for imagination as parents and practitioners, while the social sciences keep knowledge grounded and evidenced. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   
19.
Adolescents' and mothers' understanding of children's self‐determination and nurturance rights was examined in the context of the home. In individual interviews, 141 sixth, eighth, and tenth graders and their mothers responded to hypothetical vignettes in which a child story character wished to exercise a right that conflicted with parental practices. For each vignette, participants were asked to judge whether the story character should have the right in question and to provide a justification for their decision. Generally, eighth and tenth graders were more likely than their mothers to endorse requests for self‐determination and less likely than their mothers to support requests for nurturance. Mothers of tenth graders were more likely to support requests for self‐determination and less likely to favor adolescents' request for nurturance in the home than were mothers of sixth and eighth graders. In terms of reasoning, adolescents and mothers were more likely to consider the individuals' rights when discussing self‐determination situations, whereas nurturance situations elicited responses pertaining to participants' understanding of familial roles and relationships. Furthermore, mothers' reasoning about childrenà s rights reflected sensitivity to the developmental level of their children. The findings are discussed in terms of previous research on the development of children's understanding of rights and adolescent autonomy.  相似文献   
20.
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