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   6550篇
  免费   196篇
各国政治   468篇
工人农民   168篇
世界政治   629篇
外交国际关系   842篇
法律   2630篇
中国政治   42篇
政治理论   1889篇
综合类   78篇
  2023年   26篇
  2020年   74篇
  2019年   100篇
  2018年   132篇
  2017年   153篇
  2016年   164篇
  2015年   113篇
  2014年   188篇
  2013年   1003篇
  2012年   206篇
  2011年   264篇
  2010年   204篇
  2009年   214篇
  2008年   250篇
  2007年   301篇
  2006年   227篇
  2005年   216篇
  2004年   246篇
  2003年   239篇
  2002年   217篇
  2001年   105篇
  2000年   115篇
  1999年   91篇
  1998年   124篇
  1997年   100篇
  1996年   107篇
  1995年   81篇
  1994年   75篇
  1993年   89篇
  1992年   73篇
  1991年   91篇
  1990年   79篇
  1989年   70篇
  1988年   78篇
  1987年   87篇
  1986年   85篇
  1985年   52篇
  1984年   70篇
  1983年   71篇
  1982年   66篇
  1981年   50篇
  1980年   47篇
  1979年   44篇
  1978年   44篇
  1977年   46篇
  1976年   26篇
  1975年   26篇
  1974年   27篇
  1973年   34篇
  1972年   23篇
排序方式: 共有6746条查询结果,搜索用时 15 毫秒
51.
52.
53.
54.
In this paper we examine the legal aspects of corporate computer usage policies including their creation, management, and their relevance to corporate computer forensic investigations. Misuse of corporate computing facilities cannot only lead to a reduction in employee productivity and network bandwidth, but can also increase the risk of infection of such facilities by computer viruses and other malicious code. Moreover, it may lead to the risk of liability and legal action.  相似文献   
55.
56.
This paper examines current developments in the social control of youth crime and delinquency in England and Wales. It argues that the usual critical explanations of these developments, in the form of the dispersal of discipline or the social authoritarianism thesis are inadequate. Instead, it is suggested that the punishment has taken on a more effective and efficient format in the management of this problem group than either of the above would have made possible.  相似文献   
57.
58.
59.
60.
Although past research has developed scales for the incidence, prevalence, and fear of student-on-student victimization (SSV), little is known about the scaling of perceived risk (i.e., the cognitive appraisal of the chances of experiencing SSV). Hence, this study examined self-report survey data for the perceived risk of SSV as measured in the Adolescent Index for School Safety (AISS). Children in grades 7 through 10 (n=337) in a single Florida public school completed the AISS. Factor analyses using Maximum Likelihood Estimation with Oblimin Rotation identified nine unique factors for perceived risk. Reliability analyses found standardized Cronbach Alphas that ranged from .64 to .91, and seven out of the nine identified scales were above .80, which suggested good to excellent internal consistency. Future research should examine the content validity, construct validity, and predictive validity for the AISS and other self-report surveys of SSV dynamics. This publication was made possible by a grant [#97-MU-FX-KO12 (S-l)] from the Office of Juvenile Justice and Delinquency Prevention (O.J.J.D.P.), United States Department of Justice (U.S.D.O.J.). This grant is administered through the Hamilton Fish National Institute on School and Community Violence at George Washington University. This specific study was developed and implemented by staff at: 1) East Carolina University’s Department of Criminal Justice; and 2) Florida State University’s Center for Educational Research and Policy Studies. All points of view and opinions in this paper are those of the authors and do not necessarily represent the official position or policies of East Carolina University, Florida State University, the Hamilton Fish National Institute on School and Community Violence, the O.J.J.D.P., or the U.S.D.OJ. The authors would also like to thank Dr. Bill Doerner and Jennifer Jolley for their support, editorial feedback, and insightful comments regarding earlier drafts of this paper.  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