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   17211篇
  免费   275篇
各国政治   681篇
工人农民   1476篇
世界政治   703篇
外交国际关系   560篇
法律   10273篇
中国共产党   3篇
中国政治   63篇
政治理论   3647篇
综合类   80篇
  2020年   118篇
  2019年   150篇
  2018年   1439篇
  2017年   1380篇
  2016年   1209篇
  2015年   217篇
  2014年   176篇
  2013年   1056篇
  2012年   419篇
  2011年   1125篇
  2010年   1169篇
  2009年   773篇
  2008年   972篇
  2007年   906篇
  2006年   275篇
  2005年   299篇
  2004年   416篇
  2003年   356篇
  2002年   248篇
  2001年   276篇
  2000年   281篇
  1999年   202篇
  1998年   137篇
  1997年   142篇
  1996年   138篇
  1995年   133篇
  1994年   126篇
  1993年   124篇
  1992年   195篇
  1991年   212篇
  1990年   194篇
  1989年   186篇
  1988年   172篇
  1987年   181篇
  1986年   176篇
  1985年   171篇
  1984年   172篇
  1983年   179篇
  1982年   105篇
  1981年   92篇
  1980年   81篇
  1979年   116篇
  1978年   84篇
  1977年   83篇
  1976年   61篇
  1975年   63篇
  1974年   64篇
  1973年   73篇
  1972年   65篇
  1968年   53篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
941.
942.
943.
This paper outlines a conceptual scheme for systematic analysis of the criminal justice policy-planning process. The major assumptions required to apply the concept of policy-planning in the substantive area of criminal justice are examined. Specification of critical aspects of the criminal justice system/environment relationship and elaboration of the roles played by various classes of key actors in relation to the need for, demand for, production of, and utilization of policy-planning analyses are central features of the analytic scheme.  相似文献   
944.
945.
This paper examines research on the diffusion of innovation, the final stage in the process of technological change. The focus rests primarily on two traditions in diffusion research: that of economists and that of sociologists. Diffusion researchers in these and related disciplines have made significant contributions to the understanding of the dynamics of processes of change; yet the state of the art in diffusion research is not equal to the sum of its parts. This is due in large measure to disciplinary parochialism: scholars have concentrated on those innovations, diffusion environments, explanatory variables, and analytical methodologies which are most compatible with their particular disciplines, despite the fact that diffusion is not a discipline-specific phenomenon. Deficiencies in current understanding of diffusion are examined in the context of this and other significant problems. The paper concludes by considering the policy relevance of diffusion research and suggesting issues with which future research might productively be concerned.The following individuals have been most helpful in stimulating and directing my interest in this subject and in criticizing this paper: Richard R. Nelson of Yale University and the following members of the Faculty Seminar on Innovation and Social Change, Institute of Public Policy Studies, University of Michigan: Michael Moch, Lawrence Mohr, Everett Rogers, Herbert Schuette, Jack Walker, and Sidney Winter.  相似文献   
946.
947.
948.
The authors find that existing models concerning police violence are not i designed to explain variation among the states in the rates of police use ‘of deadly force. This variation correlates significantly with numerous cultural attributes of the public. The strongest correlates are with the public rates of violence. Therefore, the authors propose to moody existing modeb, and explain the police use of violence as a response to community characteristics. Where public violence is neither normative nor commonly occurrent. the police will be self-restrained. Where the incidence of violence reveals a common means of conflict resolution, the police will adopt its use. Thus, the police use of violence is a culturally determined characteristic and not a police pathology.  相似文献   
949.
Measurements of the torgue to overcome rigor mortis on the legs of 101 male human cadavers at 5 degrees C are reported. There seems to exist an upper limit, which is dependent on the lay-time, above which no value occurs, but below which every value may be found. By calculating the 90% tolerance limits for lay-times grouped at 12-hourly intervals, this upper limit was found to decrease exponentially with lay-time. This may be used for the estimation of maximum lay-times from rigor mortis measurements.  相似文献   
950.
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