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   23247篇
  免费   1343篇
各国政治   987篇
工人农民   977篇
世界政治   1532篇
外交国际关系   795篇
法律   15756篇
中国共产党   3篇
中国政治   121篇
政治理论   4239篇
综合类   180篇
  2020年   472篇
  2019年   510篇
  2018年   663篇
  2017年   687篇
  2016年   770篇
  2015年   594篇
  2014年   627篇
  2013年   2423篇
  2012年   642篇
  2011年   653篇
  2010年   647篇
  2009年   675篇
  2008年   655篇
  2007年   640篇
  2006年   671篇
  2005年   548篇
  2004年   558篇
  2003年   481篇
  2002年   534篇
  2001年   883篇
  2000年   818篇
  1999年   651篇
  1998年   307篇
  1997年   267篇
  1996年   259篇
  1995年   257篇
  1994年   251篇
  1993年   250篇
  1992年   425篇
  1991年   456篇
  1990年   422篇
  1989年   415篇
  1988年   419篇
  1987年   376篇
  1986年   444篇
  1985年   422篇
  1984年   349篇
  1983年   337篇
  1982年   241篇
  1981年   221篇
  1980年   194篇
  1979年   318篇
  1978年   171篇
  1977年   143篇
  1976年   125篇
  1975年   153篇
  1974年   195篇
  1973年   149篇
  1972年   135篇
  1971年   118篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
931.
Most research on the impact of Welfare Reform has been upon the employment status of parents and trends in declining caseloads. Recent research has examined how children in Temporary Assistance to Needy Families (TANF) program families are faring, with growing interest in the effects upon children of the disruptions to cash benefits that result from program sanctions, the policies that are intended to motivate parents to comply with work requirements. Adding to the body of knowledge on children and TANF sanctions, this study used administrative data to examine school attendance rates and disruptions to enrollment, for children from families with at least one sanction. Findings indicate that there are important probable connections between the factors that contribute to challenges to employment that relate to parenting and the school engagement of children in TANF families.  相似文献   
932.
ABSTRACT

This paper argues that the divergent performance of the rural economies of China and India after 1950 was a product of the different capabilities of the Chinese and Indian governments to mobilize the labor force and financial resources of the rural population. By mobilizing unpaid labor and the financial resources of the villagers through mediation by the collectives (before 1984) and local administrations (from 1984 to the abolition of agricultural taxation and compulsory rural labor mobilization in 2006), the Chinese state developed rural infrastructure and the quality of the labor force at a pace and geographical scope that was far beyond its limited fiscal capacity. Efforts by the Indian state to establish rural organizations with similar mobilization capabilities failed due to the effective opposition of well-entrenched political and economic interests in the countryside. Unable to mobilize the labor and financial resources of the villagers, the Indian government relied primarily on its limited fiscal resources, which produced a much slower development of physical infrastructure and labor force quality. These are the primary reasons why China’s rural economy developed much more rapidly than India’s, which contributed significantly to the divergence of their national economies in the post-1950 era.  相似文献   
933.
Abstract

This article employs an innovative methodology to study causal mechanisms in the oil–conflict link by combining a systematic approach with taking into account country details. Engaging in a deductive test of causal mechanisms in a controlled comparison of four major oil exporters, results show that no oil-related causal mechanism can fully explain the differences in violence. A more inductive analysis complemented by process tracing suggests a more comprehensive mechanism: oil contributes to the formation of opposition through grievances. Levels of violence, however, vary largely according to non-oil conditions – particularly the cohesiveness of opposition and the reaction of government to challengers.  相似文献   
934.
935.
Abstract

Rural producer associations are considered a potential community-driven solution to the problems of smallholder agriculture. This article evaluates the impact of organising female farmers into producer associations in Gujarat, India. The initiative provided training, information, access to inputs, risk mitigation, and market linkages. Over 18 months, the programme weakly increased members’ non-farm income and access to output markets. It had stronger impacts on members’ awareness and utilisation of financial services. Impacts were heterogeneous, varying by pre-existing socioeconomic conditions. These findings suggest that producer associations can lower transaction costs for smallholders, but that poverty alleviation may be a longer-term prospect.  相似文献   
936.
937.
938.
939.
940.
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