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   926篇
  免费   43篇
各国政治   71篇
工人农民   40篇
世界政治   79篇
外交国际关系   39篇
法律   314篇
中国政治   5篇
政治理论   373篇
综合类   48篇
  2020年   13篇
  2019年   22篇
  2018年   12篇
  2017年   29篇
  2016年   18篇
  2015年   18篇
  2014年   21篇
  2013年   100篇
  2012年   23篇
  2011年   24篇
  2010年   28篇
  2009年   29篇
  2008年   17篇
  2007年   28篇
  2006年   40篇
  2005年   28篇
  2004年   39篇
  2003年   33篇
  2002年   29篇
  2001年   28篇
  2000年   17篇
  1999年   10篇
  1998年   15篇
  1997年   14篇
  1996年   13篇
  1995年   16篇
  1994年   19篇
  1993年   18篇
  1992年   14篇
  1991年   18篇
  1990年   16篇
  1989年   11篇
  1988年   8篇
  1987年   17篇
  1986年   16篇
  1985年   7篇
  1984年   16篇
  1983年   13篇
  1982年   19篇
  1981年   11篇
  1980年   16篇
  1979年   9篇
  1978年   16篇
  1977年   9篇
  1976年   8篇
  1975年   5篇
  1974年   9篇
  1973年   9篇
  1970年   7篇
  1969年   3篇
排序方式: 共有969条查询结果,搜索用时 31 毫秒
771.
The combination of subdural hemorrhage (SDH), retinal hemorrhage (RH), and encephalopathy, or the presence of severe retinal hemorrhages alone in infants, is often attributed to and has been stated to be pathognomonic for abusive head trauma (AHT) or shaken baby syndrome. These beliefs have been challenged, because the same constellation of findings has been identified in accidental head injuries and natural diseases, and most if not all of the studies that support the concept of diagnostic specificity have serious flaws in their methodology. Presented here are two cases of severe retinal hemorrhages with retinoschisis associated with subdural hemorrhage in a natural disease and with severe cerebral edema in an accidental head injury. These cases challenge the dogma that severe retinal hemorrhages with retinoschisis are pathognomonic for AHT.  相似文献   
772.
773.
Agriculture has been the most contentious issue in the Doha Round of multilateral trade negotiations, and the European Union (EU) intervenes substantially in agricultural markets. This paper reviews these interventions in light of the EU’s participation in the Doha Round of multilateral trade negotiations with specific attention to Asia. It concludes that the offers made by the EU were designed precisely to avoid any real liberalization in its agricultural markets and have undermined the development aspirations of the round.
Kenneth A. ReinertEmail:
  相似文献   
774.
The overwhelming majority of cases of acute subdural hematoma in the forensic setting occur as a result of head trauma. We report a case of sudden unexpected death in a middle-aged woman with a history of arachnoid cyst who had sudden spontaneous onset of severe headache that was rapidly followed by collapse and death. A postmortem multiple-slice computed tomographic scan showed a large acute subdural hematoma associated with hemorrhage into an arachnoid cyst. Subdural hemorrhage is an uncommon but well-described complication of an arachnoid cyst.  相似文献   
775.
776.
Recent policies enacted regarding sex offenders include the formation of a publicly accessible sex offender registry, community notification, and residential restrictions. Often the motivation behind these policies is to get information out about sex offenders to community members so that these communities can effectively guard against any revictimization by the sex offenders among them. Theoretically, the premise for this type of legislation corresponds to relationships specified by routine activities theory. The theory states that if guardians can interrupt potential offenders as they are preying on suitable targets, these crimes-in-the-making will not occur. The present study assesses routine activities theory via a study of the presence of potential offenders (as measured by the number of registered sex offenders in the area), as well as community and resident characteristics that measure the presence and types of suitable targets and the existence of guardians and guardianship structures. We find that only the presence of certain types of suitable targets has an influence on the variation in the rate of sex offenses across these communities. Policy implications are discussed.  相似文献   
777.
778.
New empirical evidence suggests that service performance is shaped by the strategies adopted by public organizations and the networking behavior of public managers. Strategy captures two central behavioral aspects of public organizations: the way in which objectives and actions are selected (processes), and an organization’s approach to service delivery (content). Networking is similarly concerned with the behavior of public managers as they interact with others. These twin themes are linked in an integrated study that explores the relationship between strategy, networking, and service performance within a sample of English local governments. The results show that strategy processes based on rational planning offer long‐run positive effects on public services, as does a strategic proactive stance.  相似文献   
779.
780.
Tremendous attention has been paid to local election administration since the 2000 presidential election meltdown, yet policy makers still lack basic information about what happens at the polling place. One strategy to understand the interactions between citizens and street‐level election bureaucrats is to turn to administrative data. Using logs collected by polling place workers, the authors analyze more than 66,000 individual incidents recorded from four different statewide elections. Such data provide novel insights and guidance for the administration of elections. Findings indicate that task scale (in terms of the number of ballots) and complexity (in terms of absentee ballots) increase the incident rate. Managerial choices about how polling places are run also matter: the use of electronic voting machines and central count processing of ballots reduce the incident rate, while splitting poll worker shifts increases it. Operator capacity, measured in terms of experience, also reduces the number of incidents.  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