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   87480篇
  免费   2933篇
  国内免费   6篇
管理学   12059篇
民族学   528篇
人才学   25篇
人口学   6615篇
丛书文集   511篇
理论方法论   9245篇
综合类   2103篇
社会学   40668篇
统计学   18665篇
  2023年   501篇
  2021年   559篇
  2020年   1496篇
  2019年   2205篇
  2018年   2017篇
  2017年   3098篇
  2016年   2321篇
  2015年   2036篇
  2014年   2614篇
  2013年   18794篇
  2012年   2238篇
  2011年   2006篇
  2010年   1874篇
  2009年   2140篇
  2008年   1958篇
  2007年   1747篇
  2006年   2005篇
  2005年   2193篇
  2004年   2084篇
  2003年   1816篇
  2002年   1919篇
  2001年   1898篇
  2000年   1684篇
  1999年   1611篇
  1998年   1457篇
  1997年   1304篇
  1996年   1262篇
  1995年   1301篇
  1994年   1265篇
  1993年   1257篇
  1992年   1226篇
  1991年   1154篇
  1990年   1131篇
  1989年   969篇
  1988年   1062篇
  1987年   940篇
  1986年   835篇
  1985年   1009篇
  1984年   1088篇
  1983年   963篇
  1982年   906篇
  1981年   836篇
  1980年   785篇
  1979年   838篇
  1978年   752篇
  1977年   673篇
  1976年   636篇
  1975年   606篇
  1974年   496篇
  1973年   415篇
排序方式: 共有10000条查询结果,搜索用时 281 毫秒
891.
892.
Unions,PAC contributions,and the NAFTA vote   总被引:1,自引:0,他引:1  
Political action committees (PACs), especially those controlled by organized labor and business, have been shown to affect Congressional voting. We explore how PACs influenced the House of Representatives’ vote on the North American Free Trade Agreement (NAFTA). The NAFTA vote is analyzed because organized labor strongly opposed the treaty while business generally supported it and because of the straight-forward voting generated by its fast-track status. Probit analysis of a unique, unpublished data set containing information about PAC and non-PAC contributions to the 1992 House election campaigns demonstrates that Representatives who depended largely on labor PACs tended to oppose NAFTA, while Representatives who derived a large proportion of their campaign contributions from business PACs tended to favor its passage.  相似文献   
893.
894.
895.
896.
897.
898.
The American diet has changed substantially over the last few decades. These changes provide a test for social theory and have substantial effects on the demand for various food products, thus impacting U.S. agriculture. In this paper a rapidly growing dietary choice—vegetarianism—is explored. Prevalence of various forms of vegetarianism is estimated in a representative sample of a suburban population and factors that influence choice of a vegetarian diet are examined. About 7 percent of the sample report they are vegetarians. The prevalence of vegetarianism is not influenced by age, gender, or education, but individuals holding traditional values are less likely to be vegetarian than others. There also is some evidence mat individuals holding altruistic values are more likely than others to be vegetarians.  相似文献   
899.
Making ends meet: perceptions of poverty in Sweden   总被引:1,自引:0,他引:1  
During the era after the Second World War, Sweden has built a welfare system based on labor market participation and income maintenance. Low unemployment and decent wages are supposed to guarantee people a labor market income or income maintenance, which in turn should provide a proper standard for everyone. However, a rapid increase in unemployment and economic problems have made the future of the Swedish welfare state more uncertain than ever. These circumstances have, among other things, led to the suggestion that Sweden should abandon the income maintenance policy and create a social policy system with the more limited ambition of guaranteeing everyone a minimum income. In that case, one central question must be answered: what constitutes a decent minimum income in today's Sweden? Where should we draw the poverty line under which people will not be forced to live? These questions are central in the current debate. The consensual poverty line method is used in this article to derive a poverty line relevant for today's Sweden. The results shows that more than every fifth household has an income below the consensual poverty line. That is, they have an income that most Swedes would argue is too low to make ends meet. The level of the consensual poverty line was compared with the National Board of Health and Welfare's guidelines for social assistance. The consensual poverty line was shown to be more generous to small households and the norm for social assistance was more generous to larger households. Finally, the expenditure for guaranteeing all Swedish household a minimum income equal to the consensual poverty line was estimated: more than SEK 25 billion per year. The results in the article casts serious doubt on the ability of the Swedish welfare state to secure a decent income to all citizens.  相似文献   
900.
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