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   23128篇
  免费   437篇
各国政治   951篇
工人农民   1558篇
世界政治   1101篇
外交国际关系   809篇
法律   14040篇
中国共产党   4篇
中国政治   75篇
政治理论   4861篇
综合类   166篇
  2020年   167篇
  2019年   216篇
  2018年   1524篇
  2017年   1477篇
  2016年   1305篇
  2015年   311篇
  2014年   284篇
  2013年   1666篇
  2012年   580篇
  2011年   1259篇
  2010年   1275篇
  2009年   890篇
  2008年   1124篇
  2007年   1041篇
  2006年   432篇
  2005年   410篇
  2004年   531篇
  2003年   482篇
  2002年   381篇
  2001年   539篇
  2000年   520篇
  1999年   388篇
  1998年   207篇
  1997年   231篇
  1996年   201篇
  1995年   203篇
  1994年   197篇
  1993年   189篇
  1992年   326篇
  1991年   344篇
  1990年   314篇
  1989年   339篇
  1988年   293篇
  1987年   305篇
  1986年   328篇
  1985年   279篇
  1984年   279篇
  1983年   288篇
  1982年   169篇
  1981年   157篇
  1980年   130篇
  1979年   212篇
  1978年   144篇
  1977年   132篇
  1976年   113篇
  1975年   121篇
  1974年   137篇
  1973年   139篇
  1972年   121篇
  1971年   91篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
161.
162.
Recent British work has focused attention on preventing repeat victimization as part of an overall crime prevention strategy. Because domestic violence victims are among those most likely to suffer multiple victimizations, they are logical candidates for programs targeted at reducing repeat victimization.
This article reports on a joint law enforcement-social services approach to reduce the incidence of repeat domestic violence. The research design randomly assigned households reporting domestic incidents within two public housing police service areas in New York to receive or not receive a follow-up to the initial patrol response. (The follow-up visit was conducted by a police officer and a social worker.) In addition, housing projects in the same area were randomly assigned to receive or not receive public education about domestic violence.
Neither treatment produced a reduction in violence. However, households in projects that had received public education and households that received the follow-up visits were both more likely to report new violence to the police than households that did not receive the treatments. Moreover, the effect of the follow-up visit was most pronounced among households with more serious histories of violence. The results suggest that the interventions increased citizens' confidence in the ability of the police to handle domestic situations.  相似文献   
163.
164.
The purpose of this study is to review 23 causes of death that have occurred in Western-Austrian prisons from 1974 to 1989. The majority of them (11 cases) were due to suicides. Among 9 cases of natural death there was a 25 years old man, who died of an unknown purulent meningoencephalitis. Two drunken prisoners had not been supervised and therefore died of alcohol poisoning. In one case the police jail physician did not recognize an epidural hematoma.  相似文献   
165.
166.
167.
168.
This paper gives the author's impressions on the following aspects of justice: desert, equity, equality, need, and intergenerational equity. The author concludes that these different aspects cannot be reconciled but instead must be compromised. An example of such a compromise is provided by a discussion of welfare reform. The author claims that rights are correlative with duties, and that asserting the former has little meaning without specifying the latter. He then discusses justice toward groups rather than individuals. He proposes that maintaining cultural variety in the presence of a homogeneous superculture is a major problem of the contemporary world. The paper concludes with a discussion of various forms of power, particularly the integrative power that people acquire over each other by virtue of ties of loyalty and identity.  相似文献   
169.
170.
The functional and nutritive circulation in the lungs is connected by anastomoses between the pulmonary and bronchial arteries. The anastomoses have the structure of blocked arteries from which arteriovenous anastomoses proceed to the peribronchial plexus. The pulmonary artery is provided with a flow impulse by the anastomoses, and oxygen-containing blood is admixed with the venous blood, thus forming an "aortalization" in the lungs. By diverting the bloodstream, venous blood can reach the bronchial artery. The peculiarities of the lung circulation are important for vital reactions in the form of macro- and microembolisms. Macroembolisms prove the functionality of the system if branches of the pulmonary artery are closed before the arteries are blocked. A hemorrhagic infarction either arises or does not arise, and the hemorrhagic infarction cannot exceed a certain limit. A microembolism is over and above the anastomoses. If the microembolism is greater, pressure in the arteria pulmonaris can cause blood from the pulmonary artery to overflow into the bronchial artery. Because arteriovenous anastomoses arise from the blocked arteries, microemboli can now reach the systemic circulation. Thus, the system described can explain the passage of microemboli into the systemic circulation, avoiding the capillaries of the lungs; on the other hand, larger microembolisms can prove the functionality of the system.  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