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   93472篇
  免费   3031篇
  国内免费   3篇
管理学   12732篇
民族学   580篇
人才学   26篇
人口学   7353篇
丛书文集   540篇
教育普及   2篇
理论方法论   9758篇
现状及发展   1篇
综合类   2221篇
社会学   44169篇
统计学   19124篇
  2023年   519篇
  2021年   582篇
  2020年   1545篇
  2019年   2286篇
  2018年   2188篇
  2017年   3272篇
  2016年   2454篇
  2015年   2098篇
  2014年   2681篇
  2013年   19162篇
  2012年   2588篇
  2011年   2404篇
  2010年   2113篇
  2009年   2284篇
  2008年   2208篇
  2007年   2027篇
  2006年   2228篇
  2005年   2404篇
  2004年   2301篇
  2003年   1986篇
  2002年   2101篇
  2001年   2087篇
  2000年   1848篇
  1999年   1731篇
  1998年   1535篇
  1997年   1392篇
  1996年   1333篇
  1995年   1353篇
  1994年   1340篇
  1993年   1318篇
  1992年   1322篇
  1991年   1246篇
  1990年   1221篇
  1989年   1060篇
  1988年   1134篇
  1987年   1012篇
  1986年   924篇
  1985年   1094篇
  1984年   1152篇
  1983年   1035篇
  1982年   960篇
  1981年   880篇
  1980年   838篇
  1979年   879篇
  1978年   788篇
  1977年   719篇
  1976年   667篇
  1975年   645篇
  1974年   526篇
  1973年   444篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
This article highlights three dimensions to understanding children's well‐being during and after parental imprisonment which have not been fully explored in current research. A consideration of ‘time’ reveals the importance of children's past experiences and their anticipated futures. A focus on ‘space’ highlights the impact of new or altered environmental dynamics. A study of ‘agency’ illuminates how children cope within structural, material and social confines which intensify vulnerability and dependency. This integrated perspective reveals important differences in individual children's experiences and commonalities in broader systemic and social constraints on prisoners’ children. The paper analyses data from a prospective longitudinal study of 35 prisoners’ children during and after their (step) father's imprisonment to illustrate the arguments.  相似文献   
12.
13.
14.
15.
We employ two population‐level experiments to accurately measure opposition to immigration before and after the economic crisis of 2008. Our design explicitly addresses social desirability bias, which is the tendency to give responses that are seen favorably by others and can lead to substantial underreporting of opposition to immigration. We find that overt opposition to immigration, expressed as support for a closed border, increases slightly after the crisis. However, once we account for social desirability bias, no significant increase remains. We conclude that the observed increase in anti‐immigration sentiment in the post‐crisis United States is attributable to greater expression of opposition rather than any underlying change in attitudes.  相似文献   
16.
17.
In this article, we propose a novel approach for testing the equality of two log-normal populations using a computational approach test (CAT) that does not require explicit knowledge of the sampling distribution of the test statistic. Simulation studies demonstrate that the proposed approach can perform hypothesis testing with satisfying actual size even at small sample sizes. Overall, it is superior to other existing methods. Also, a CAT is proposed for testing about reliability of two log-normal populations when the means are the same. Simulations show that the actual size of this new approach is close to nominal level and better than the score test. At the end, the proposed methods are illustrated using two examples.  相似文献   
18.
19.
20.
As part of the celebration of the 40th anniversary of the Society for Risk Analysis and Risk Analysis: An International Journal, this essay reviews the 10 most important accomplishments of risk analysis from 1980 to 2010, outlines major accomplishments in three major categories from 2011 to 2019, discusses how editors circulate authors’ accomplishments, and proposes 10 major risk-related challenges for 2020–2030. Authors conclude that the next decade will severely test the field of risk analysis.  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