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   23072篇
  免费   1358篇
各国政治   904篇
工人农民   1001篇
世界政治   1577篇
外交国际关系   727篇
法律   15905篇
中国共产党   2篇
中国政治   143篇
政治理论   4045篇
综合类   126篇
  2021年   115篇
  2020年   480篇
  2019年   521篇
  2018年   660篇
  2017年   700篇
  2016年   787篇
  2015年   577篇
  2014年   647篇
  2013年   2339篇
  2012年   613篇
  2011年   657篇
  2010年   654篇
  2009年   675篇
  2008年   660篇
  2007年   679篇
  2006年   691篇
  2005年   563篇
  2004年   575篇
  2003年   522篇
  2002年   538篇
  2001年   890篇
  2000年   809篇
  1999年   647篇
  1998年   309篇
  1997年   231篇
  1996年   264篇
  1995年   247篇
  1994年   231篇
  1993年   231篇
  1992年   426篇
  1991年   434篇
  1990年   403篇
  1989年   403篇
  1988年   417篇
  1987年   384篇
  1986年   430篇
  1985年   433篇
  1984年   343篇
  1983年   339篇
  1982年   259篇
  1981年   238篇
  1980年   202篇
  1979年   298篇
  1978年   176篇
  1977年   147篇
  1976年   128篇
  1975年   130篇
  1974年   176篇
  1973年   135篇
  1971年   111篇
排序方式: 共有10000条查询结果,搜索用时 26 毫秒
931.
After the 2008 global financial crisis, both the United States and the United Kingdom introduced austerity policies targeted at particular elements of their national budgets. The purpose of this article is to compare the nature of this retrenchment; the similarities and differences in how it was implemented; and its initial impacts on one of the expenditure areas particularly affected: affordable rental housing programs and housing support for low-income households. Using a wide range of data sources, we find evidence of political and fiscal policy analogies in the timing and forms of the initial policy choices and how these were modified in the face of economic and political pressures. There are considerable similarities both in the instruments used to reduce housing expenditures and in the early impacts on support mechanisms and recipients. However, we find different histories and trajectories of support between the two countries that suggest that the longer term differences in outcomes may be more important.  相似文献   
932.
Many core graduate-level seminars claim to expose students to their discipline’s “canon.” The contents of this canon, however, can and do differ across departments and instructors. This project employs a survey of core American politics PhD seminar syllabi at highly ranked universities to construct a systematic account of the American politics canon. Our results offer valuable insights into the topics and literature that political scientists consider important and on which future scholars base their work. Our article breaks down the literature into a comprehensive list of topics and subtopics, which allows us to identify both an overall field canon and one for each topic, to assess whether some topics receive more attention than others, and to identify which topics are most clearly defined. We explore the extent to which diverse perspectives and methods are (or are not) taught to young scholars, and, although we identify sets of frequently assigned readings and authors within each topic, we also find considerable variation between seminars.  相似文献   
933.
The complexity of decentralized regulatory contexts can threaten program fidelity, particularly if it results in divergence between program goals and the intents of regulatory inspectors. This paper investigates how inspectors negotiate the conflicting demands of a decentralized program by examining how they perceive their regulatory roles – the primary responsibilities that inspectors ascribe to their functions and the entities to which they feel responsible – and how these role orientations are related to inspectors' attitudes toward the use of discretion. The study findings indicate that in the decentralized administration of United States organic food regulations, inspectors experience multiple, and sometimes conflicting, role orientations. The presence of multiple role orientations, however, does not seem to affect how inspectors approach their responsibilities. The combined strengths of quantitative and qualitative data are leveraged to offer explanations for the study findings and identify avenues for future research.  相似文献   
934.
Classic studies on hegemonic stability and power transition suggest that concentration of capabilities favoring a single state can promote economic cooperation and discourage militarized conflict. However, tests of these arguments have been primarily limited to examining temporal variation in global capability distributions and corresponding levels of system-wide cooperation; few have examined the impact of capability concentration at the region level. In this article, we contend that concentration of regional military capabilities corresponds to lower trade costs for states throughout a region and to an incentive for weaker states to de-prioritize expenditure on the military, freeing resources that can be used to promote trade. As a result, this condition promotes higher levels of trade, particularly within the region. We also argue that democratic regional powers are better able to foster confidence in the sustainability of cooperation; thus, the trade-enhancing impact of concentrated regional capabilities is stronger when the predominant state is more democratic. We find evidence in support of our expectations in statistical models examining state trade between 1960 and 2007.  相似文献   
935.
In federal systems, both state governments and firms have incentives to strategically locate polluting facilities where the environmental and health consequences will be borne as much as possible by residents of other jurisdictions. We analyze air polluter location in the United States using a spatial point pattern model, which models where events occur in latitude and longitude. Our analyses indicate that major air polluters are significantly more likely to be located near a state's downwind border than a control group of other industrial facilities, results that are robust to a wide variety of model specifications and measurement strategies. This effect is particularly pronounced for facilities with toxic air emissions. The observed pattern of polluter location varies systematically across states and time in ways that suggest it is responsive to public policy at both the national and state levels.  相似文献   
936.
Lawrence M. Mead 《Society》2017,54(5):399-405
The main threat to continued American leadership abroad is social problems at home. These include poverty and the decline of the working class, both of them caused initially by falling levels of work and marriage. Policymakers have traditionally tried to counter these trends by changing social benefits and incentives, but the problems are really cultural, reflecting a decline in individualism. The best answer is more structured schools and social programs that promote the disciplines essential to a free society, especially working. Immigration should also be reduced and more money spent on education, to promote assimilation. Despite Donald Trump’s election, consensus has built supporting such measures.  相似文献   
937.
Although research has documented the majority of homelessness experienced by individuals and families in the US to be transitional rather than chronic, the mechanisms by which some families successfully escape homelessness while other do not remains relatively unclear. To provide more information to this area of inquiry, this study analyzed the transitional nature of homelessness for a sample of families with school-aged children who were homeless under the McKinney-Vento definition. By conducting a survey with over 1000 homeless families with children enrolled in two public school systems in Central Florida, we find that over a quarter of families exit homelessness in less than six months. We compare these families to those that remained homeless to examine the potential importance of demographic differences and other potential barriers to securing housing. Many of the commonly assumed barriers were not significant predictors of continued homelessness; the most salient difference between the groups was income underscoring the importance of employment opportunities for families to allow them to exit homelessness.  相似文献   
938.
Following an ambiguous constitutional compromise for democratization, the territorial decentralization of the Spanish state developed by means of political party competition, exchanges, and bargaining. Hence, the so-called state of autonomies was characterized as “non-institutional federalism” [Colomer, Josep M. 1998. “The Spanish ‘State of Autonomies’: Non-institutional Federalism.” West European Politics 21 (4): 40–52]. In the most recent period, competition and instability have intensified. New developments include, on one side, attempts at recentralizating the state and, on the other side, demands and mobilizations for Catexit, that is, the independence of Catalonia from Spain, which resulted in sustained inter-territorial conflict. This article addresses these recent changes with a focus on the relations between the Spanish and the Catalan governments. The political changes were analyzed as a result of opportunities and incentives offered by a loose institutional framework and the subsequent competitive strategies of extreme party leaders.  相似文献   
939.
During the last decade, several formalized approaches have been developed to improve the effectiveness of probation and parole by implementing evidence-based research into community supervision practices. A key component of these new approaches are the use of officer coaching sessions, which are designed to improve officer fidelity in the core correctional skill areas. This study explores the impact of an initial training and monthly coaching sessions in the Effective Practices in Community Supervision (EPICS) model on probation and parole officer use of core correctional skills. The results examine the average quarterly officer use of skills over an 18-month follow-up period based on training status (i.e., trained versus untrained officers) in the EPICS model. This study adds to the understanding of the role training and coaching may play in improving officer use of core correctional skills. Policy implications and recommendations for future research are also discussed.  相似文献   
940.
The aims of this qualitative study were to explore key sources of emotional distress and coping strategies among West African immigrants. Thirty-eight adult West African immigrants participated in six semistructured, open-ended focus group sessions. Focus group data were analyzed using a grounded theory approach. While participants reported high levels of psychological distress associated with racial/cultural discrimination, intimate partner violence, parenting, extended-family demands, and problematic immigration status, they demonstrated resilience and the ability to identify a range of coping strategies that draw on their cultural heritage. Only two of the participants reported having used psychological services; both outcomes were negative. The findings of this study are considered in terms of their clinical implications.  相似文献   
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