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   10220篇
  免费   323篇
各国政治   293篇
工人农民   487篇
世界政治   605篇
外交国际关系   312篇
法律   6573篇
中国共产党   35篇
中国政治   132篇
政治理论   1963篇
综合类   143篇
  2021年   63篇
  2020年   149篇
  2019年   131篇
  2018年   207篇
  2017年   245篇
  2016年   279篇
  2015年   228篇
  2014年   223篇
  2013年   839篇
  2012年   241篇
  2011年   281篇
  2010年   214篇
  2009年   282篇
  2008年   339篇
  2007年   350篇
  2006年   332篇
  2005年   306篇
  2004年   296篇
  2003年   245篇
  2002年   239篇
  2001年   352篇
  2000年   325篇
  1999年   258篇
  1998年   155篇
  1997年   112篇
  1996年   140篇
  1995年   115篇
  1994年   130篇
  1993年   126篇
  1992年   198篇
  1991年   249篇
  1990年   212篇
  1989年   198篇
  1988年   221篇
  1987年   201篇
  1986年   220篇
  1985年   192篇
  1984年   163篇
  1983年   157篇
  1982年   102篇
  1981年   122篇
  1980年   101篇
  1979年   102篇
  1978年   90篇
  1977年   77篇
  1976年   64篇
  1975年   64篇
  1974年   65篇
  1973年   77篇
  1971年   50篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
Dissident violence inflicts many costs on society, but some of the longest‐lasting consequences for civilians may be indirect, due to the government's response. We explore how government policy responses affect social welfare, specifically through budgetary shifts. Using subnational violence and budgeting data for Peru, we demonstrate that attacks on soldiers during the budget negotiation period drive a shift from local social services, especially health, to defense. One soldier fatality implies a 0.13 percentage point reduction in the local health budget share (2008–12). Health budget cuts due to a single soldier fatality result in 76 predicted additional infant deaths 2 years later. We show that the effect on health budgeting operates through decreases in women's use of health facilities and postnatal services. We offer evidence that Peru's coercive response indirectly harms civilians due to butter‐to‐guns budgetary shifts. Our results identify a budgetary mechanism that translates dissident violence into a deterioration in social welfare.  相似文献   
992.
We evaluate the cost‐effectiveness of two early childhood interventions that use instructional coaching and parent coaching as levers for improvement. The study design allows us to compare the individual effects of each intervention as well as their combined effect on student outcomes. We find that teachers receiving instructional coaching improve their use of evidence‐based instructional practices, while families receiving parent coaching show increases in numerous responsive parenting behaviors associated with positive child outcomes. Both interventions demonstrate positive impacts on students, but only parent coaching shows statistically significant effects across a range of student outcomes. Instructional coaching alone is substantially less costly and may therefore be the most cost‐effective of the three treatment conditions; however, small sample sizes limit our ability to reach definitive conclusions. Policy simulations suggest that implementing these interventions could raise the overall cost‐effectiveness of Head Start by at least 16 percent.  相似文献   
993.
Studies show that women and girls consistently demonstrate higher levels of concern for the environment than men and boys. Separately, research also indicates that women officeholders pay particular attention to the issues prioritized by their female constituents. Interestingly, despite the consistency of the gender gap in attitudes to environmental issues the literature has paid scant attention to the role of women officeholders in the adoption of environmental policy. The goal of this paper was to start to address that lacuna. Using pooled cross‐sectional time series analyses of environmental standards in 18 Western parliamentary democracies (1990–2012), our initial findings indicate women officeholders are associated with the adoption of higher environmental standards.  相似文献   
994.
995.
Among the more recognizable programs related to natural and sustainable food is the United States Department of Agriculture’s National Organic Program. Although the robustness of the organic food market is difficult to contest, many debate the extent to which U.S. organic policy outcomes adequately serve consumers and the organic agriculture producers they rely on. This paper engages the debate from the perspective of certified organic producers. Drawing on the results of a nationwide survey of USDA‐certified producers, we first provide a snapshot of how producers assess the environmental, consumer, and market impacts of U.S. organic food policy. We then examine the extent to which organic producers’ policy impact perceptions are associated with their alignment with an “organic ethos”—understood as producers’ commitment to core organic principles and the organic movement. The paper highlights producers’ values as perceptual filters and cognitive mechanisms that help shape producers’ policy impacts perceptions, illustrating a contributing factor to the enduring nature of organic policy debates.  相似文献   
996.
<正>The ground was shaking.The roads were distorted.The mountains collapsed,raining down stones.A devastating earthquake ravaged Sichuan Province on May 12,2008,followed by more than 30,000 aftershocks.  相似文献   
997.
Journal of Family Violence - This article explores the use of cognitive interviewing among one sensitive population, survivors of crime, and shares lessons learned from a cognitive interviewing...  相似文献   
998.
999.
Abstract

Late nineteenth-century England saw the development of a number of campaigns and social movements which were connected by both a hostility towards the medical profession and by the use of discourses of purity and sanitary reform. This article explores the involvement of women within these movements, analysing their activism as an aspect of social purity feminism. It argues that many of these movements drew on widespread female anxiety regarding male violence – both physical and sexual – towards women. The anti-medical feminists claimed that some pieces of ‘sanitary’ legislation represented a state-sanctioned violation of the bodies of women and children. Finally, this article analyses the use made, by some of these activists, of the discourses of sanitary reform to challenge the gender ordering associated with the reason/nature dualism in Victorian society.  相似文献   
1000.
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