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   1819篇
  免费   59篇
各国政治   151篇
工人农民   59篇
世界政治   93篇
外交国际关系   63篇
法律   1247篇
中国政治   9篇
政治理论   245篇
综合类   11篇
  2023年   11篇
  2020年   35篇
  2019年   37篇
  2018年   49篇
  2017年   67篇
  2016年   62篇
  2015年   29篇
  2014年   38篇
  2013年   213篇
  2012年   45篇
  2011年   62篇
  2010年   39篇
  2009年   41篇
  2008年   52篇
  2007年   51篇
  2006年   47篇
  2005年   52篇
  2004年   49篇
  2003年   56篇
  2002年   44篇
  2001年   63篇
  2000年   50篇
  1999年   48篇
  1998年   16篇
  1997年   14篇
  1996年   19篇
  1995年   12篇
  1994年   13篇
  1993年   12篇
  1992年   29篇
  1991年   32篇
  1990年   36篇
  1989年   38篇
  1988年   35篇
  1987年   25篇
  1986年   35篇
  1985年   26篇
  1984年   20篇
  1983年   16篇
  1982年   12篇
  1981年   18篇
  1980年   11篇
  1979年   19篇
  1978年   21篇
  1977年   16篇
  1971年   18篇
  1970年   17篇
  1969年   11篇
  1968年   17篇
  1967年   12篇
排序方式: 共有1878条查询结果,搜索用时 15 毫秒
11.
12.
13.
14.
Observations of high velocity bloodspatter on adjacent objects   总被引:1,自引:0,他引:1  
In a recent homicide investigation, high velocity backspatter was observed on the sleeve cuff of the accused. These minute droplets were discovered only after microscopic examination and were limited in number. A study was initiated to determine if these were truly backspatter droplets or transferred blood produced from light contact with a bloody item. It was observed that the backspattered blood was primarily limited to contact or near contact shots. An exception was a shot into an already bloody surface. It was found that backspattered blood would deposit on the shooter's shirt sleeve irrespective of the weave pattern. Transferred blood was observed only on the fiber tops. This information was found to be useful in reconstruction of events in suicides as well as possible homicides.  相似文献   
15.
16.
Conclusion We have in this paper tried to set out a framework which can facilitate analysis of the current and future situation of traditional rulership in contemporary African society. Our presentation of a proposed model for such an analysis is no doubt still in its elementary stages of formation. Much more work needs to be done. Nevertheless, our analysis has revealed certain salient elements and uncovered certain unresolved issues. If traditional rulers genuinely care about their own future they will have to devise techniques of legitimation which not only endear them to the government and the non-traditional elites, but also, and more importantly, to the mass of the people. True, the original role of the traditional rulers may be no more; still, it may be possible to salvage what is left.  相似文献   
17.
In a case of suicidal application of electricity differences between the rectal temperature of the body and the suspected time of death were observed.In order to answer the question whether an electric current from hand to hand over >30 min led to a rise in body temperature FEM-based computer simulations and animal experiments were carried out. Both resulted in a warming of the soft parts in the arm without warming the body core. Thus a temperature-based estimation of the time since death can also be used in cases with electricity as the cause of death. Besides, in the animal experiment we found a spontaneous rise in the body core temperature even without application of electricity which may be a reason for the typical temperature plateau after death.  相似文献   
18.
Law enforcement agencies and institutions of higher education have confronted increasing numbers of violent and destructive campus riots and disturbances over the past decade. Problematic is the fact that these riots typically have no underlying cause, other than students’ quest for excitement. Responding to gaps in the empirical literature about these events, this study used data from two waves of surveys to systematically examine those involved in a recurring problem event in a college town that was subject to a police crackdown. The analyses drew on survey responses from over eight hundred event participants in 2002 and 2003, and the results revealed that increased enforcement had a significant effect on crowd composition, including the gender and race of participants, repeat visitors, out-of-town participants, and perceptions about the subjects' overall experience. Implications for law enforcement and community strategies to decrease the size and destructiveness of such problem events are outlined.  相似文献   
19.
20.
The future of public health law   总被引:1,自引:0,他引:1  
Developments in medicine and constitutional law dictate modification of public health legislation in the United States. Traditionally overlooked by legislators, present public health laws provide inadequate decision-making criteria and inappropriate procedures for dealing with issues. Revised legislation should provide health care officials and agencies with the tools to balance individual rights against public health necessities. This Article makes four recommendations for legislative reform: (1) remove artificial legislative distinction between venereal and other communicable diseases; (2) provide criteria defining "public health necessity" to limit discretionary exercise of police power by health officials; (3) provide strong confidentiality protections in the collection and storage of public health information; (4) empower public health officials to select from a graded series of less restrictive alternatives in dealing with public health problems.  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