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   21653篇
  免费   443篇
管理学   3062篇
民族学   141篇
人才学   7篇
人口学   2598篇
丛书文集   81篇
教育普及   1篇
理论方法论   1755篇
综合类   291篇
社会学   10025篇
统计学   4135篇
  2021年   111篇
  2020年   267篇
  2019年   373篇
  2018年   961篇
  2017年   1102篇
  2016年   843篇
  2015年   333篇
  2014年   424篇
  2013年   3107篇
  2012年   692篇
  2011年   970篇
  2010年   763篇
  2009年   723篇
  2008年   703篇
  2007年   824篇
  2006年   477篇
  2005年   504篇
  2004年   488篇
  2003年   442篇
  2002年   436篇
  2001年   445篇
  2000年   398篇
  1999年   370篇
  1998年   283篇
  1997年   285篇
  1996年   293篇
  1995年   244篇
  1994年   243篇
  1993年   227篇
  1992年   286篇
  1991年   248篇
  1990年   245篇
  1989年   248篇
  1988年   234篇
  1987年   208篇
  1986年   218篇
  1985年   240篇
  1984年   229篇
  1983年   227篇
  1982年   188篇
  1981年   188篇
  1980年   176篇
  1979年   208篇
  1978年   185篇
  1977年   159篇
  1976年   158篇
  1975年   159篇
  1974年   117篇
  1973年   106篇
  1971年   101篇
排序方式: 共有10000条查询结果,搜索用时 890 毫秒
171.
Minorities and females are underrepresented in the top-income quintile of law school graduates. Employing a binary logistic regression model, I examine whether this is due to a“glass ceiling” (an invisible barrier erected by third parties) or a“sticky floor” (self-imposed limitations regarding employment). My major finding is that being female, a minority, or disabled did not significantly reduce one's probability of making the top-income quintile once hours of work, experience, and other factors are taken into account. My findings directly contradict the large body of glass-ceiling literature and support the sticky-floor model. I thank the Law School Admission Council for funding this research. Helpful comments and suggestions were received from Robert Nelson of Northwestern University and the American Bar Foundation, Steven Conroy of the University of West Florida, and R. Kim Craft and Douglas Bonzo of Southern Utah University. The views expressed here are solely those of the author and do not necessarily reflect those of the institutions or persons listed above.  相似文献   
172.
An important deficiency in Harberger's [1962] model of corporate income taxation is its inability to consider both corporate and noncorporate production of the same good. Within-industry substitution has potentially major implications for both the excess burden and incidence of the corporate tax.
We analyze this within-industry substitution using a model in which each industry/sector contains corporate and noncorporate firms (with identical production functions) which produce goods that are close substitutes. The scope for considerable within-industry substitution of noncorporate for corporate capital leads to a very much larger excess burden than that in the Harberger model.  相似文献   
173.
174.
Abstract Past research suggests that mail surveys encourage a primacy effect, which is a tendency to choose the first answers from a list, whereas telephone surveys encourage a recency effect, a tendency to choose the last answers from a list. This paper summarizes results from 82 new experiments conducted in 12 separate surveys in seven states. Only four of 33 mail survey comparisons exhibited significant primacy effects, while five of 26 experiments in telephone surveys exhibited recency effects. In addition, only three of 23 cross-method comparisons produced a significant primacy/recency effect in the expected manner. The conclusion is that the prevalence of primacy and recency effects has been over-estimated by past research and a new theoretical approach that takes into account multiple causation is needed for examining these effects.  相似文献   
175.
A sample of 16 women and men who accompanied their adopted children with severe developmental disabilities to a medical appointment at Henry Ford Hospital's Multidisciplinary Care Clinic during the one-year period beginning July 1, 1988 are described in the context of their parental role vis-a-vis these children. Results of the study are presented through use of a six-part organizational scheme: demographic and social traits of the parents and their adopted children, the adopted children in family context, life satisfactions of the parents, adoption motives, adoption satisfactions, and humanization of the children.  相似文献   
176.
Surprisingly little research has sought to explain differential participation after recruitment into social movement organizations (SMOs). This study examines the influence of several sets of predictors on participation by members of a national organization in the antihunger movement. The findings highlight the importance of incentive, ideological, and microstructural factors for differential participation and suggest that favorable perceptions of SMOs also promote participation. Final remarks address the implications of the findings for the social movement and voluntary organization literatures.  相似文献   
177.
Approximations of the Bayesian estimators of the survival function based on the censored data of the log-logistic distribution are obtained under squared-error and log-odds squared-error loss functions. A numerical example is presented. Through a Monte Carlo simulation study, the behavior of the approximations found by Tierney & Kadane and Lindley are compared with a method suggested by Weiss & Howlader.  相似文献   
178.
179.
180.
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