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   16616篇
  免费   1366篇
各国政治   774篇
工人农民   544篇
世界政治   1330篇
外交国际关系   689篇
法律   11053篇
中国共产党   1篇
中国政治   128篇
政治理论   3334篇
综合类   129篇
  2023年   70篇
  2021年   81篇
  2020年   410篇
  2019年   444篇
  2018年   569篇
  2017年   625篇
  2016年   686篇
  2015年   547篇
  2014年   553篇
  2013年   2001篇
  2012年   431篇
  2011年   517篇
  2010年   660篇
  2009年   622篇
  2008年   467篇
  2007年   463篇
  2006年   537篇
  2005年   409篇
  2004年   398篇
  2003年   363篇
  2002年   344篇
  2001年   534篇
  2000年   433篇
  1999年   393篇
  1998年   217篇
  1997年   208篇
  1996年   171篇
  1995年   192篇
  1994年   207篇
  1993年   189篇
  1992年   280篇
  1991年   291篇
  1990年   270篇
  1989年   275篇
  1988年   258篇
  1987年   213篇
  1986年   249篇
  1985年   257篇
  1984年   256篇
  1983年   212篇
  1982年   172篇
  1981年   159篇
  1980年   145篇
  1979年   167篇
  1978年   110篇
  1977年   94篇
  1976年   79篇
  1975年   84篇
  1974年   106篇
  1973年   73篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
Survival of the public service ethos in Britain has been called into question following introduction of the 'new public management' and marketizing reforms in much of the public sector. This article examines how these developments have occurred in the NHS, using survey data to analyse NHS board members' substantive ethical values. Unexpectedly the results suggest that NHS board members with a predominantly NHS background appear less ethically conservative, more flexible and less risk–averse than those recruited from non–NHS backgrounds; and that as yet the NHS management 'culture' is not very homogenous in respect of 'business ethics'. The NHS reforms also appear to accentuate the tensions between transparent public accountability in NHS management and incentives not to publicize certain types of information. Recent codification of NHS 'business ethics' can be understood as an attempt to buttress the public service ethos against the increased moral strains of a quasi–market.  相似文献   
122.
123.
124.
125.
126.
127.
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   
128.
129.
The purpose of this survey was to determine the methods of analysis being used on gunshot residue (GSR) samples in forensic science laboratories across the United States. In addition, the two general techniques of GSR analysis are compared and contrasted. Problems encountered by analysts using scanning electron microscopy/energy-dispersive X-ray analysis (SEM/EDX) are discussed.  相似文献   
130.
One of the remedies sought by state and local officials for the growing burden of federal mandates is a mandate reimbursement law. A major purpose of mandate reimbursement is to deter Congress from imposing excessive costs on state and local governments by making it fully accountable for its actions. The paper begins by extending the economic theory of grants to mandates and reimbursed mandates. It goes on to assess the benefits and costs of mandate reimbursement, and to distinguish mandates that should be reimbursed, should a reimbursement program prove desirable, from those that should not. Then, using the economic theory of grants and mandates, the paper compares reimbursed mandates with two alternatives for accomplishing the same objective, compensating grants and procedural rules. It concludes that the latter are more promising than mandate reimbursement.  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