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   26950篇
  免费   744篇
  国内免费   2篇
管理学   3847篇
民族学   114篇
人才学   1篇
人口学   2582篇
丛书文集   113篇
教育普及   2篇
理论方法论   2456篇
现状及发展   1篇
综合类   394篇
社会学   12903篇
统计学   5283篇
  2021年   158篇
  2020年   400篇
  2019年   568篇
  2018年   631篇
  2017年   869篇
  2016年   691篇
  2015年   522篇
  2014年   665篇
  2013年   4409篇
  2012年   882篇
  2011年   836篇
  2010年   636篇
  2009年   547篇
  2008年   670篇
  2007年   684篇
  2006年   634篇
  2005年   601篇
  2004年   541篇
  2003年   511篇
  2002年   561篇
  2001年   690篇
  2000年   668篇
  1999年   590篇
  1998年   459篇
  1997年   421篇
  1996年   439篇
  1995年   404篇
  1994年   364篇
  1993年   403篇
  1992年   461篇
  1991年   428篇
  1990年   402篇
  1989年   379篇
  1988年   381篇
  1987年   352篇
  1986年   328篇
  1985年   358篇
  1984年   371篇
  1983年   339篇
  1982年   296篇
  1981年   241篇
  1980年   250篇
  1979年   288篇
  1978年   243篇
  1977年   231篇
  1976年   196篇
  1975年   232篇
  1974年   181篇
  1973年   162篇
  1972年   141篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
21.
22.
23.
Journal of Population Research - This paper details efforts to link administrative records from the Internal Revenue Service (IRS) to American Community Survey (ACS) and 2010 Census microdata for...  相似文献   
24.
In this article, we explore views on an age-friendly space in the Netherlands by analysing the responses of older individuals (N = 54) in focus groups and by examining the perspectives around an age-friendly zone in the Netherlands, Parkstad Limburg. We found that a central issue in the wishes for living at a later age are adjustments to envisioned physical limitations that come with the ageing process; this includes adjustments to ensure safety, accessibility and mobility, in order to facilitate older individuals' efforts to stay engaged with the world around them. In their wishes, the older participants constructed ideal dwelling places that closely resembled a senior home, but at the same time they rejected wishing to live in a place that was identified as a senior home. We explain this paradox by the representation of such a space as being for old people, i.e. needy older individuals, which was not how the older participants wished to be identified. We conclude that the conception of age-friendly environments will have to face the difficult challenge of overcoming the association with old age, while simultaneously taking into account adjustments that signify and relate to the ageing process and that seem inescapably tied to oldness.  相似文献   
25.
26.
27.
28.
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   
29.
30.
The simple logistic regression model with normal measurement error and normal regressor is shown to be identifiable without any extra information about the measurement error. The multiple logistic regression model with more than one regressor variable measured with error is not identifiable. If the covariance matrix of the measurement error is known up to a scalar factor, the model is identified. Further we discuss why in spite of the identifiability the models cannot be estimated in a reasonable way without extra information about the measurement error.  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