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   642篇
  免费   20篇
各国政治   82篇
工人农民   1篇
世界政治   83篇
外交国际关系   9篇
法律   266篇
中国政治   14篇
政治理论   207篇
  2017年   9篇
  2016年   4篇
  2015年   4篇
  2014年   19篇
  2013年   35篇
  2012年   27篇
  2011年   26篇
  2010年   27篇
  2009年   30篇
  2008年   27篇
  2007年   21篇
  2006年   21篇
  2005年   30篇
  2004年   16篇
  2003年   12篇
  2002年   6篇
  2001年   3篇
  2000年   8篇
  1999年   7篇
  1998年   8篇
  1997年   10篇
  1996年   11篇
  1995年   14篇
  1994年   13篇
  1993年   14篇
  1992年   13篇
  1991年   18篇
  1990年   11篇
  1989年   14篇
  1988年   11篇
  1987年   16篇
  1986年   10篇
  1985年   7篇
  1984年   14篇
  1983年   11篇
  1982年   10篇
  1981年   10篇
  1980年   12篇
  1979年   13篇
  1978年   11篇
  1977年   9篇
  1976年   7篇
  1975年   8篇
  1974年   5篇
  1973年   5篇
  1972年   5篇
  1971年   5篇
  1969年   3篇
  1968年   4篇
  1966年   3篇
排序方式: 共有662条查询结果,搜索用时 15 毫秒
91.
Popular belief is that ownership change (from public to private) brings about improved performance. But (i) ownership displays a spectrum, not an either/or; (ii) degree of competition is conceptually and often actually independent of ownership; and (iii) so is change-of-ownership's assumed instruments for improving performance, change in managerial incentive structures and reporting structures. The article surveys the relevant theories, popular and scholarly, and develops models for testing the relationships between status change (ownership) and performance (indices of productivity, profitability etc.), and between status change and internal organizational change (indices of reorganization and of linkage), in a small number of British organizations which underwent change in recent decades. Preliminary results of one or two analyses illustrate the methods and the possibilities.  相似文献   
92.
93.
94.
Criminal behavior and criminal victimization have been associated with population density in the criminological literature. and this has led re- searchers to argue that there is a positive zero-order relationship between population density and crime rates. However, using National Crime Survey victimization data we found that there is no simple relationship between population density and crime rates in 26 large American cities. Property crimes nith contact were, found 10 he positivelv correlated with population density. and thus are consistent with traditional criminological explana- tions. All other crimes, which we classified as property crimes without contacl and nonproperty assaultive crimes. contradict most previous research findings because of significant negative correlations with popula- tion density.  相似文献   
95.
96.
97.
This study examines the dynamics of potentially violent encounters between police and public. It is based on systematic observation of about 350 eight-hour tours of duty by patrol officers in three precincts of New York City during the summer of 1986. It compares the tactics and resulting outcomes found in encounters handled, respectively, by patrol officers believed by their peers to be especially skilled at minimizing violence and a cross section of all other patrol officers. Its major conclusions are (1) violence, even verbal aggression, is relatively rare in police work: (2) most conflict is dampened by the arrival of the police, leaving little scope for the use of defusing tactics: and (3) the behavior of officers judged by colleagues to be skilled in minimizing violence is measurably different from the behavior of “average” patrol officers, and in ways that suggest that colleagues may be good judges of on-street performance.  相似文献   
98.
99.
The study of specialization in offending careers is relevant to the key theoretical issue of whether different types of offending reject only one underlying theoretical construct (such as delinquent tendency) or several different constructs. This research improves on previous studies of specialization in offending careers in three ways: (1) It is based on the complete juvenile court careers of a very large sample of offenders (nearly 70,000). (2) It uses a fine-grained classification of 21 offense types. (3) It uses a new measure of the strength of specialization, the Forward Specialization Coefficient (FSC). Both transition matrices and offending careers are studied.
The major findings from the transition matrices are (1) there was a small but significant degree of specialization in offending superimposed on a great deal of versatility: (2) the degree of specialization tended to increase with successive referrals, and this was not due to more versatile offenders dropping out: and (3) the relative extent to which offenders specialized in different offenses held for two jurisdictions (Maricopa County, Arizona, and Utah), both sexes, and all ages.
The analyses of offending careers showed that the most specialized offenses were runaway, burglary, motor vehicle theft, liquor violations, incorrigibility, curfew, truancy, and drugs. Nearly 20 percent of the offenders were identified as specialists. The conclusion is that, while offending was versatile to a first approximation, delinquency theories should attempt to explain specialization and specialists in order to yield more accurate quantitative predictions about offending careers.  相似文献   
100.
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