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   11531篇
  免费   334篇
各国政治   457篇
工人农民   530篇
世界政治   780篇
外交国际关系   324篇
法律   7200篇
中国政治   79篇
政治理论   2404篇
综合类   91篇
  2020年   131篇
  2019年   183篇
  2018年   242篇
  2017年   259篇
  2016年   256篇
  2015年   195篇
  2014年   210篇
  2013年   1065篇
  2012年   243篇
  2011年   295篇
  2010年   232篇
  2009年   305篇
  2008年   302篇
  2007年   311篇
  2006年   293篇
  2005年   275篇
  2004年   271篇
  2003年   270篇
  2002年   263篇
  2001年   436篇
  2000年   386篇
  1999年   308篇
  1998年   168篇
  1997年   134篇
  1996年   151篇
  1995年   140篇
  1994年   147篇
  1993年   140篇
  1992年   243篇
  1991年   266篇
  1990年   249篇
  1989年   257篇
  1988年   231篇
  1987年   227篇
  1986年   276篇
  1985年   268篇
  1984年   236篇
  1983年   223篇
  1982年   161篇
  1981年   134篇
  1980年   121篇
  1979年   155篇
  1978年   90篇
  1977年   117篇
  1976年   96篇
  1975年   75篇
  1974年   93篇
  1973年   83篇
  1972年   78篇
  1971年   71篇
排序方式: 共有10000条查询结果,搜索用时 35 毫秒
61.
We tested competing hypotheses derived from Gottfredson and Hirschis (1990) general theory and Moffitt's (1993a) developmental theory of antisocial behavior. The developmental theory argues that different factors give rise to antisocial behavior at different points in the life course. In contrast, the general theory maintains that the factor underlying antisocial behavior (i.e., criminal propensity) is the same at all ages. To test these competing predictions, we used longitudinal data spanning from age 5 to age 18 for the male subjects in the Dunedin Multidisciplinary Health and Development Study. Using reports from three sources (parents, teachers, and the boys themselves), we estimated second-order confirmatory factor models of antisocial behavior. These models provided consistent support for the developmental theory, showing that separate latent factors underlie childhood and adolescent antisocial behavior. Moreover, we found that these childhood and adolescent factors related in ways predicted by Moffitt's developmental theory to four correlates of antisocial behavior: Childhood antisocial behavior was related more strongly than adolescent antisocial behavior to low verbal ability, by per activity, and negative/impulsive personality, whereas adolescent antisocial behavior was related more strongly than childhood antisocial behavior to peer delinquency. The two underlying latent factors also showed the predicted differential relations to later criminal convictions: Childhood antisocial behavior was significantly more strongly associated with convictions for violence, while adolescent antisocial behavior was significantly more strongly associated with convictions for nonviolent offenses.  相似文献   
62.
63.
On January 1, 1996, a new law took effect in Texas granting certain state citizens the privilege to carry a concealed handgun on their person for the first time since 1871. As a result of this dramatic shift in state law, Texas is now among the growing number of states across the nation who have adopted similar statutory provisions in one form or another. While at least one empiricals study of citizen’s attitudes toward concealed handgun ownership was conducted prior to the law’s effective date, no similar efforts were undertakens to assess the beliefs, perceptions and attitudes of the state’s law enforcement officers about this important social policy. The present study was therefore undertaken in response to the lack of serious attention which the issue of concealed handgun ownership among private citizens has received as it directly relates to the law enforcement profession. Subjects for this study (N=327) were drawn from four Texas law enforcement agencies representing various organizational sizes and missions. While the responses of officers who participated in the study indicate optimism about the law’s potential to deter various types of crime, they also reflect a certain degree of concerns about concealed handgun ownership among private citizens especially as this policy directly relates to perceive inadequacies in statemandated requirements and issues affecting officer safety.  相似文献   
64.
65.
66.
67.
68.
1. The indications such as the place of finding, the identification of clothes or other personal items, represent only the first step towards the identification of a corpse. 2. An identification based on medical data, other than dental, is often possible, more often than it is believed. 3. The forensic pathologist plays a double role in the case of such an identification: a) in the phase of the inquiry, he must contact the investigators and the families to explain his wishes and the different possibilities of identification. b) he must use the gathered information in the appropriate way. 4. It would be desirable to compose some statistical tables of the various medical elements useful for the identification (mutilations, surgical operations, etc...). We present six cases of identification in our practice.  相似文献   
69.
70.
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