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   19531篇
  免费   534篇
  国内免费   1篇
管理学   2807篇
民族学   71篇
人才学   1篇
人口学   1911篇
丛书文集   79篇
教育普及   2篇
理论方法论   1778篇
现状及发展   1篇
综合类   259篇
社会学   9608篇
统计学   3549篇
  2021年   114篇
  2020年   280篇
  2019年   379篇
  2018年   456篇
  2017年   620篇
  2016年   489篇
  2015年   358篇
  2014年   477篇
  2013年   3072篇
  2012年   640篇
  2011年   616篇
  2010年   453篇
  2009年   376篇
  2008年   458篇
  2007年   472篇
  2006年   478篇
  2005年   458篇
  2004年   419篇
  2003年   383篇
  2002年   433篇
  2001年   533篇
  2000年   536篇
  1999年   470篇
  1998年   353篇
  1997年   321篇
  1996年   323篇
  1995年   309篇
  1994年   292篇
  1993年   293篇
  1992年   346篇
  1991年   319篇
  1990年   288篇
  1989年   295篇
  1988年   296篇
  1987年   256篇
  1986年   251篇
  1985年   282篇
  1984年   271篇
  1983年   255篇
  1982年   218篇
  1981年   183篇
  1980年   167篇
  1979年   196篇
  1978年   177篇
  1977年   160篇
  1976年   135篇
  1975年   158篇
  1974年   119篇
  1973年   115篇
  1972年   94篇
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
21.
22.
CORRUPTION: TOP DOWN OR BOTTOM UP?   总被引:3,自引:0,他引:3  
This article studies the impact of corruption on an economy with a hierarchical government. In particular, we study whether centralizing corruption within the higher level of government increases or decreases the total amount of corruption. We show that when the after-tax relative profitability of the formal sector as compared to that of the informal sector is high enough, adding a layer of government increases the total amount of corruption. By contrast, for high-enough public wages and/or an efficient monitoring technology of the bureaucratic system, centralization of corruption at the top of the government hierarchy redistributes bribe income from the lower level to the upper level. In the process, total corruption is reduced and the formal sector of the economy expands.  相似文献   
23.
24.
25.
Athletics is the most prominent extracurricular activity in U.S. secondary schools in terms of student participation and school budgets. The latter is often justified on the grounds that healthy bodies produce healthy minds, that school sports boost school spirit, and that participation in school-based sports increases students' self-esteem. In this article we examine the interrelationships among participation in a school-based sport and the benefits assumed to be associated with it. Specifically, we test a model that postulates that school spirit, operationalized as attachment to school, and healthy bodies, operationalized as a sense of physical well-being, mediate the relationship between school sports and self-esteem. Data from the National Longitudinal Study of Adolescent Health on Caucasian and African American girls and boys were employed to test the model. School attachment and physical well-being absorbed the statistical effect of participating in a sport for all four gender-by-race groups. Among Caucasian girls a negative residual effect of sports participation was observed, which suggests that sports participation encapsulates multiple effects with contradictory influences. For African American girls school attachment by itself was not a significant mediator of the effect of sports participation on self-esteem. For all groups a sense of physical well-being was the more powerful mediator.  相似文献   
26.
27.
From a rights perspective disability has come increasingly to be seen as less a matter of personal misfortune than of societal neglect and obstruction, and as much warranting claims on the state to ensure inclusion and equality as to prosecute a duty of care. This shift resonates with other transitions within international discourse, most notably the increasing prominence of the notion of human development, which emphasises the importance of equity, freedom, and full realisation of human rights and capabilities as central to societal developmental objectives. After briefly examining apparent parallels in discourses relating to disability and to human development, the capabilities approach, upon which the concept of human development is grounded, is examined more closely and its implications for disability considered. It is argued that a capabilities approach may serve alternatively to keep disability partially hidden from view or become a powerful means for identifying the responsibilities of governments and external agencies in genuinely equalising opportunities.  相似文献   
28.
This study examined variations in the relationships among child characteristics, parenting stress, and parental involvement. Participants were 100 two‐parent families with preschool‐aged children. Self‐report and interview data were collected to measure parental involvement, as well as perceptions of child temperament and parental stress. Analyses revealed significant, yet somewhat different, associations between child temperament and parental stress for mothers and fathers. More significant associations were found between perceptions of child temperament and involvement for fathers than for mothers. The associations between child temperament and parental stress and involvement differed on the basis of child and parent gender. Results are discussed in terms of future research on father involvement, as well as programs designed to encourage fathers to assume more active parental roles.  相似文献   
29.
30.
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   
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