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   2076篇
  免费   93篇
管理学   261篇
民族学   14篇
人口学   163篇
丛书文集   11篇
理论方法论   269篇
综合类   18篇
社会学   1141篇
统计学   292篇
  2023年   13篇
  2022年   10篇
  2021年   20篇
  2020年   66篇
  2019年   87篇
  2018年   96篇
  2017年   104篇
  2016年   67篇
  2015年   53篇
  2014年   86篇
  2013年   381篇
  2012年   77篇
  2011年   82篇
  2010年   79篇
  2009年   47篇
  2008年   61篇
  2007年   72篇
  2006年   65篇
  2005年   55篇
  2004年   47篇
  2003年   47篇
  2002年   52篇
  2001年   43篇
  2000年   33篇
  1999年   41篇
  1998年   27篇
  1997年   34篇
  1996年   20篇
  1995年   22篇
  1994年   20篇
  1993年   21篇
  1992年   17篇
  1991年   19篇
  1990年   19篇
  1989年   18篇
  1988年   12篇
  1987年   15篇
  1986年   8篇
  1985年   14篇
  1984年   13篇
  1983年   13篇
  1982年   5篇
  1981年   12篇
  1980年   15篇
  1979年   11篇
  1978年   9篇
  1977年   8篇
  1976年   9篇
  1975年   7篇
  1968年   4篇
排序方式: 共有2169条查询结果,搜索用时 15 毫秒
11.
12.
In this paper we reanalyze Robert D. Mare's highly influential work on educational transitions among American men born in the first half of the 20th century. Contrary to previous belief, Mare found that the effects of socioeconomic background variables decline regularly across educational transitions in conditional logistic regression analyses. We have reconfirmed Mare's findings and tested them by introducing a modified logistic response model that constrains selected social background effects to vary proportionally across educational transitions. We refer to our preferred model as the logistic response model with partial proportionality constraints (LRPPC). The model can easily be estimated in Stata or using other standard statistical software. Partial proportionality constraints may also prove useful in interpopulation comparisons based on other linear models.  相似文献   
13.
14.
Using data from 8 random assignment studies and employing meta‐analytic techniques, this article provides systematic evidence that welfare and work policies targeted at low‐income parents have small adverse effects on some school outcomes among adolescents ages 12 to 18 years at follow‐up. These adverse effects were observed mostly for school performance outcomes and occurred in programs that required mothers to work or participate in employment‐related activities and those that encouraged mothers to work voluntarily. The most pronounced negative effects on school outcomes occurred for the group of adolescents who had a younger sibling, possibly because of the increased home and sibling care responsibilities they assumed as their mothers increased their employment.  相似文献   
15.
Adolescents' romantic relationships have attracted popular interest, but, until recently, little scientific curiosity. Research has been impeded by erroneous assumptions that adolescent relationships are trivial and transitory, that they provide little information beyond measures of the influence of parent‐child and peer relationships, and that their impact is primarily associated with problems of behavior and adjustment. This article proposes that distinguishing five features of romantic relationships (involvement, partner selection, relationship content, quality, and cognitive and emotional processes) is essential to describing adolescents' relationships and their developmental significance. These distinctions also help to clarify the role of context, age‐related variations, and individual differences in the impact of romantic experiences. Research is needed to illuminate questions of how and under what conditions romantic relationships affect individual development and how romantic and other close relationships jointly influence developmental trajectories during adolescence.  相似文献   
16.
17.
This paper estimates a simultaneous-equations model with public sector bargaining laws and union membership treated as jointly-determined variables. The extent of public sector unionization has a significant positive influence on the passage of prolabor bargaining legislation and bargaining legislation has strong, independent effects on the extent of public sector unionization. We gratefully acknowledge the research support provided by Minbo Kim and Parisun Chantonahom.  相似文献   
18.
Abstract Agroforestry, the practice of raising crops and trees together in ways that are mutually beneficial, provides farmers with an alternative to more conventional farming practices. In this paper, we apply Bourdieu's concepts of “field” and “habitus” in an attempt to better understand the practice of farming and the role that agroforestry may have in farming systems. Analysis is based on qualitative and quantitative interviews of farmers and other key informants in two regions, Fox‐Wyaconda Watershed in northeast Missouri and Scott County in southeast Missouri. Within the field of farming, farmers emphasized the importance of economic, family and rental relations. Important habitus considerations include different interpretations of what constitutes farming and what constitutes forestry. Based on Bourdieu's theoretical framework, we offer three alternative paths of social change that may lead to more widespread utilization of agroforestry.  相似文献   
19.
20.
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