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   6960篇
  免费   276篇
管理学   934篇
民族学   42篇
人才学   1篇
人口学   679篇
丛书文集   32篇
教育普及   1篇
理论方法论   771篇
综合类   80篇
社会学   3370篇
统计学   1326篇
  2023年   58篇
  2022年   39篇
  2021年   81篇
  2020年   161篇
  2019年   205篇
  2018年   215篇
  2017年   303篇
  2016年   248篇
  2015年   155篇
  2014年   200篇
  2013年   1073篇
  2012年   256篇
  2011年   238篇
  2010年   194篇
  2009年   177篇
  2008年   193篇
  2007年   183篇
  2006年   206篇
  2005年   152篇
  2004年   170篇
  2003年   123篇
  2002年   137篇
  2001年   152篇
  2000年   144篇
  1999年   153篇
  1998年   124篇
  1997年   105篇
  1996年   111篇
  1995年   84篇
  1994年   87篇
  1993年   105篇
  1992年   110篇
  1991年   108篇
  1990年   87篇
  1989年   88篇
  1988年   71篇
  1987年   73篇
  1986年   68篇
  1985年   85篇
  1984年   70篇
  1983年   76篇
  1982年   48篇
  1981年   45篇
  1980年   45篇
  1979年   56篇
  1978年   43篇
  1977年   36篇
  1976年   41篇
  1975年   35篇
  1974年   44篇
排序方式: 共有7236条查询结果,搜索用时 710 毫秒
1.
Abstract

The economic mobility of individuals and households is of fundamental interest. While many measures of economic mobility exist, reliance on transition matrices remains pervasive due to simplicity and ease of interpretation. However, estimation of transition matrices is complicated by the well-acknowledged problem of measurement error in self-reported and even administrative data. Existing methods of addressing measurement error are complex, rely on numerous strong assumptions, and often require data from more than two periods. In this article, we investigate what can be learned about economic mobility as measured via transition matrices while formally accounting for measurement error in a reasonably transparent manner. To do so, we develop a nonparametric partial identification approach to bound transition probabilities under various assumptions on the measurement error and mobility processes. This approach is applied to panel data from the United States to explore short-run mobility before and after the Great Recession.  相似文献   
2.
3.
Urban Ecosystems - The development of urban areas imposes challenges that wildlife must adapt to in order to persist in these new habitats. One of the greatest changes brought by urbanization has...  相似文献   
4.
Theory and Society - The massive expansion of US higher education after World War II is a sociological puzzle: a spectacular feat of state capacity-building in a highly federated polity. Prior...  相似文献   
5.
6.
7.
This paper discusses an emerging role for Philippine NGOs—building and maintaining intersectoral cooperation among various sectors of society to tackle key issues like agricultural development, HIV/AIDS, and agrarian reform. The three case studies elaborated in the paper show that Philippine NGOs play important intermediary and bridging functions crucial for the success of multistakeholder partnerships. NGOs are well equipped for this because of their middle-class and professional nature and because of various characteristics like autonomy, flexibility, and the ability to mobilize resources.  相似文献   
8.
A class of symmetric bivariate uniform distributions is proposed for use in statistical modeling. The distributions may be constructed to be absolutely continuous with correlations as close to±1 as desired. Expressions for the correlations, regressions and copulas are found. An extension to three dimensions is proposed.  相似文献   
9.
What do voters really know about party platforms and how do they perceive the contents? Are there any relationships between party election platforms and electoral behavior? Despite of much research on parties, there are hardly any answers to these questions. If political parties devise programmes in order to influence political attitudes or electoral behavior, it will be necessary that these programmes are read by people. But it seems to be unclear if and how people do so. This article shows clearly that voters don’t know much about party manifestoes. Still, programmes are more important for voters than many people believe. Programmes are also an important factor for electoral behavior. But there is still a lack of data to get evident results.  相似文献   
10.
The authors examined the impact of sense of coherence on the career thought processes of a sample of college students. A. Antonovsky (1987) defined sense of coherence as the global orientation that the world is comprehensible, manageable, and meaningful. Study participants completed the Sense of Coherence Scale (A. Antonovsky, 1987) and the Career Thoughts Inventory (CTI; J. P. Sampson, G. W. Peterson, J. G. Lenz, R. C. Reardon, & D. E. Saunders, 1996). Multivariate tests indicated a medium relationship between sense of coherence and CTI Total and subscale scores; sense of coherence accounted for 14% of the variance. Univariate tests also indicated a medium relationship between sense of coherence and each subscale.  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