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   12939篇
  免费   218篇
管理学   1676篇
民族学   54篇
人才学   4篇
人口学   1112篇
丛书文集   78篇
教育普及   2篇
理论方法论   1181篇
综合类   337篇
社会学   6451篇
统计学   2262篇
  2021年   71篇
  2020年   199篇
  2019年   233篇
  2018年   251篇
  2017年   387篇
  2016年   292篇
  2015年   235篇
  2014年   260篇
  2013年   2077篇
  2012年   411篇
  2011年   324篇
  2010年   220篇
  2009年   241篇
  2008年   266篇
  2007年   283篇
  2006年   222篇
  2005年   354篇
  2004年   303篇
  2003年   261篇
  2002年   271篇
  2001年   317篇
  2000年   298篇
  1999年   312篇
  1998年   209篇
  1997年   207篇
  1996年   216篇
  1995年   190篇
  1994年   204篇
  1993年   178篇
  1992年   237篇
  1991年   232篇
  1990年   213篇
  1989年   223篇
  1988年   194篇
  1987年   185篇
  1986年   192篇
  1985年   174篇
  1984年   208篇
  1983年   200篇
  1982年   166篇
  1981年   137篇
  1980年   139篇
  1979年   166篇
  1978年   137篇
  1977年   119篇
  1976年   102篇
  1975年   102篇
  1974年   96篇
  1973年   93篇
  1971年   64篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
22.
23.
Federal minimum wage statutes cover only 70 percent of the work force and 30 percent of all employers. State laws are designed to close some of these coverage gaps and in some cases to set higher wage floors. Hence, differences in state wage floors and coverage should affect employment rates and wage distributions, particularly among low-skilled workers. Evidence from the National Longitudinal Ssurveys of Youth is mixed, however: State wage floors appear to have no impact on youth employment or entry wages, but coverage exemptions appear to increase both employment and wages. These observations underscore the need to include state provisions in models of minimum wage impacts, particularly for later periods (e.g., 1988–1991) when state wage floors were relatively higher.  相似文献   
24.
25.
26.
Major policy changes like the 1986 Tax Reform Act (TRA) in the United States provide natural experiments to study attitudinal and behavior responses to law. Surprisingly, public evaluations of the TRA became increasingly negative after passage, while general support for the tax system became more positive in response to the changes. To explain this puzzle, we propose a dynamic model of taxpayer attitudes that is consistent with the observed loose linkage between logically-connected concepts. We briefly review the political context, objectives and impacts of the 1986 Tax Reform Act, and present several studies testing the impact of self-interest, prior beliefs, and social discussion on changes in attitudes and behavior.Results suggest that the complexity of taxes and difficulty in knowing objective impacts weakens the role of self-interest in attitudinal changes, thereby strengthening the role of prior beliefs and discussion. Evaluations of tax laws are most responsive to more politically-oriented influences.  相似文献   
27.
According to traditional error theory, sentiment measurements vary unsystematically from individual to individual. However, we find some patterned deviation in sentiments that characterize subsets of respondents within a seemingly homogeneous population. After demonstrating the existence of such patterns, we report an exploratory study aimed at identifying social characteristics of people with different patterns of sentiments. People embedded in multiple social networks have exaggerated sentiments that contour cultural patterns, and people with few social associations have attenuated sentiments conveying cultural detachment. In addition, people with disciplinary parents and romantic privation have some distinctive sentiments, depending on their gender.  相似文献   
28.
Although the health-enhancing effects of physical exercise have been well documented, less is known about how exercise benefits stressed employees psychologically. This article examines exercise as a coping response, and identifies changes in self-schemata (a person's underlying belief systems about him or herself) as the means by which exercise affects coping resources. In addition, by drawing on schema theory and the exercise literature, the active components of an exercise programme and the individuals who might enhance their ability to cope with stress through such a programme are identified.  相似文献   
29.
R Carbino 《Child welfare》1992,71(6):497-509
For reasons discussed in this article, it is in the nature of family foster care that allegations of abuse and/or neglect in foster homes will arise. How an agency acts before, during, and after these eventualities has long-lasting implications for the well-being of foster children and of foster parents and their own children, as well as for foster home recruitment.  相似文献   
30.
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