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   1657篇
  免费   61篇
各国政治   118篇
工人农民   111篇
世界政治   117篇
外交国际关系   98篇
法律   808篇
中国政治   53篇
政治理论   410篇
综合类   3篇
  2023年   16篇
  2022年   10篇
  2021年   20篇
  2020年   40篇
  2019年   56篇
  2018年   70篇
  2017年   69篇
  2016年   71篇
  2015年   39篇
  2014年   54篇
  2013年   267篇
  2012年   52篇
  2011年   55篇
  2010年   48篇
  2009年   53篇
  2008年   59篇
  2007年   54篇
  2006年   51篇
  2005年   53篇
  2004年   39篇
  2003年   42篇
  2002年   39篇
  2001年   39篇
  2000年   35篇
  1999年   31篇
  1998年   13篇
  1997年   21篇
  1996年   16篇
  1995年   25篇
  1994年   19篇
  1993年   19篇
  1992年   22篇
  1991年   28篇
  1990年   19篇
  1989年   15篇
  1988年   11篇
  1987年   10篇
  1986年   14篇
  1985年   12篇
  1984年   11篇
  1983年   13篇
  1982年   8篇
  1981年   13篇
  1979年   6篇
  1978年   10篇
  1977年   6篇
  1976年   5篇
  1974年   4篇
  1973年   4篇
  1967年   5篇
排序方式: 共有1718条查询结果,搜索用时 62 毫秒
991.
According to Agnew’s General Strain Theory, many individuals who experience strain are more likely to engage in crime or become delinquent. To date, past research has examined the relationship between victimization and fear of crime, as well as the corresponding relationship between fear of crime and self-protective behaviors. Yet, the mediating role fear of sexual assault may have in accounting for the association between prior sexual assault victimization and self-protective behaviors has not been evaluated. The current study addresses this gap in the literature using data collected from a random sample of college students from 12 universities in the United States. The results indicated that the relationship between prior sexual assault victimization and self-protective behavior is partially mediated by fear of sexual assault. The study concludes with a discussion of implications and limitations, as well as directions for future research.  相似文献   
992.
Scholars have debated what constitutes effective ministerial leadership with respect to administrative competence versus political influence. The authors contribute experimental evidence to this debate through a unique survey design of endorsement experiments. Using original data from 949 national civil servants in South Korea, this article examines civil servants’ assessments of ministerial leadership in three central dimensions of public management: internal management, interbranch coordination, and policy formulation/implementation. Further, existing variation in the characteristics of agencies is used to test whether such variation induces systematic differences in civil servants’ responses. Findings show that that civil servants’ attitudes toward ministerial leadership are asymmetric in nature. Ministers with civil service backgrounds are endorsed in all three dimensions, whereas ministers with legislative backgrounds receive increased support only for interbranch coordination skills. The levels of support for ministers with different backgrounds also vary across agency types. This analysis has implications for public management practice and agency control in presidential governments.  相似文献   
993.
994.
The cost of producing multifamily affordable housing may differ based on development type. Past attempts to compare the costs of producing multifamily housing through new construction or acquisition-rehab have been limited by an inability to adjust for variations in unit quality among different projects. The authors overcome this challenge by estimating the costs of developing and maintaining a property over a 50-year life cycle. Applying this approach to a convenience sample of 269 properties, the authors find new construction associated with life-cycle costs that are 25% to 45% higher than those of acquisition-rehab.  相似文献   
995.
With recent advancements in image processing and printing technology, home printers have improved in performance and grown more widespread. As such, they have been increasingly used in counterfeiting and forgery. Most counterfeit bills in Korea have been created using home scanners and printers. The identification of printer model is thus necessary to rapidly track down criminals and solve crimes. Household printers can be largely divided into inkjet and laser printers. These two types of printers print halftone textures instead of continuous images. This study proposed a technique of printer classification based on halftone textures that can be observed in printed documents. Since halftone textures are expressed as periodic lattices, the images were transformed via FFT, which is highly effective at expressing periodicity. ResNet, known for its superior gradient flow, was used for training. The experiment was conducted on 12 color laser jets and 2 inkjets. Scans of bills printed by each printer were used, and halftone texture analysis was performed on these images for printer model classification. Each image was cropped into several parts; one of the cropped parts was analyzed. The analysis showed that laser printers could be 100% distinguished from inkjet printers. An accuracy of 98.44% was achieved in make classification. When 50 cropped images were used instead of a single image, the technique achieved 100% accuracy in model classification. The proposed technique is non-destructive; it offers high accessibility and efficiency as it can be performed using a scanner alone, without requiring additional optical equipment.  相似文献   
996.
Social assistance is increasingly promoted as a means of tackling poverty. However, in established democracies stable delivery has often proved difficult because of tensions between national and local government, the former desiring comprehensiveness and uniformity, the latter requiring flexibility to meet local needs. These issues are explored in the context of China and Dibao, the world's largest social assistance system, with three questions posed: Do similar tensions exist in China as in the Western world? How are they resolved and what is the nature of the political compromise? How do recipients fare? Policy analysis in a village in south‐central China reveals similar tensions. A regime in which local government employed discretion to prioritize social stability over poverty alleviation has been replaced by an inherently unstable system based on surveillance of officials and local cadres who now prioritize their personal security over the needs of applicants.  相似文献   
997.
998.
The counter-jihad scene can be understood variously as a collection of parties, pundits, and movements all linked by a common belief that the West is being subjected to takeover by Muslims. In this article, I seek to improve academic understanding of this collection of movements, parties, and ideas by analyzing the discourse presented by a collection of online advocates whom I describe as the counter-jihad nebula. The findings suggest a need to at least partially re-evaluate the role of the nebula within the wider counter-jihad scene as well as the relationship between the wider counter-jihad scene and mainstream political discourse as expressed through various media outlets.  相似文献   
999.
1000.
Electoral suffrage and civil and political rights are insufficient to guarantee effective democracy in the age of social media and the Internet. Democracy must be upgraded to strengthen and reinforce accountability, transparency, fairness and rationality, and oversight independence. Design standards in the preparation and drafting of laws would be a major contribution to this objective.  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