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   12123篇
  免费   384篇
各国政治   789篇
工人农民   350篇
世界政治   1119篇
外交国际关系   582篇
法律   6190篇
中国政治   70篇
政治理论   3279篇
综合类   128篇
  2020年   145篇
  2019年   191篇
  2018年   271篇
  2017年   277篇
  2016年   290篇
  2015年   205篇
  2014年   246篇
  2013年   1611篇
  2012年   277篇
  2011年   306篇
  2010年   274篇
  2009年   280篇
  2008年   329篇
  2007年   388篇
  2006年   353篇
  2005年   322篇
  2004年   326篇
  2003年   337篇
  2002年   316篇
  2001年   318篇
  2000年   289篇
  1999年   240篇
  1998年   216篇
  1997年   182篇
  1996年   168篇
  1995年   154篇
  1994年   146篇
  1993年   164篇
  1992年   185篇
  1991年   236篇
  1990年   202篇
  1989年   204篇
  1988年   202篇
  1987年   231篇
  1986年   212篇
  1985年   196篇
  1984年   202篇
  1983年   201篇
  1982年   162篇
  1981年   141篇
  1980年   130篇
  1979年   132篇
  1978年   116篇
  1977年   104篇
  1976年   91篇
  1975年   84篇
  1974年   93篇
  1973年   99篇
  1972年   78篇
  1969年   68篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
Almost all European countries are member countries of Interpol, the World Customs Organisation and the United Nations. Some of them are Benelux and Schengen countries, and 15 are EU Member States. With this in mind, Europe can be considered, in policing terms, as being made up of a series of concentric and overlapping circles. The map shows overlapping institutional sources, territorial remits, functional specialisations and strategic emphasis. This article focuses on recent developments in European police co-operation, as well as judicial co-operation. International law enforcement co-operation is more and more influenced by basic political developments. Based on a rather complex, and sometimes confusing patchwork of institutions, there is a growing influence of intergovernmental based new developments. In particular prevention and combating organised crime are the main reasons for new and more professional ways of improved horizontal co-operation.  相似文献   
942.
家兔死后眼玻璃体液锌、镍含量与 PMI关系的研究   总被引:6,自引:3,他引:3  
Gong ZQ  Xu XM  Zeng XB  Sun YG  Wang DW 《法医学杂志》2001,17(3):129-131
目的寻找一种精确推定PMI的方法。方法应用电感耦合等离子体质谱(ICP-MS),检测了家兔死后96小时内眼玻璃体液锌、镍元素含量,探讨其与PMI的相关性。结果家兔死后24h内眼玻璃体液锌、镍元素含量与PMI显著相关,可作为推定早期PMI的参考指标,其二项式回归方程分别为y=0.1404x2-1.3351x+3.8298(R2=0.9202)、y=0.0043x2-0.0596x+0.2665(R2=0.9103)。结论家兔眼玻璃体液中Zn、Ni元素含量变化是推定早期PMI的参考指标之一。  相似文献   
943.
挤压综合征大鼠血清酶浓度变化的初步研究   总被引:1,自引:1,他引:0  
Liu SP  Chen YC  Guo W  Cheng JD 《法医学杂志》2001,17(4):205-206
目的观察挤压伤大鼠血清肌酸激酶(CK)、肌酸激酶心肌同功酶(CK-MB)浓度的变化,阐明肢体挤压伤大鼠早期是否存在心脏损伤。方法复制挤压伤大鼠动物模型,全自动生化分析仪检测血清CK、CK-MB浓度的变化。结果挤压伤后12h,血清CK、CK-MB浓度显著升高,并持续48h以上。结论肢体挤压伤早期可能有心脏损伤的存在。  相似文献   
944.
Scheb  John M.  Lyons  William 《Political Behavior》2001,23(2):181-194
This article examines the mass public's perceptions of the factors that actually influence Supreme Court decisions as well those that ought to influence such decisions. We expect significant discrepancies between what the public believes ought to be the case and what it perceives to actually be the case with regard to Supreme Court decision making and that these discrepancies have a significant negative impact on the public's assessment of the Court. More specifically, we hypothesize that the public believes that political factors have more influence on the Court than ought to be the case and that the public perceives traditional legal factors to be less influential than they should be. We find that the expected discrepancies do exist and significantly detract from popular regard for the Court.  相似文献   
945.
Guglielmo WJ 《Newsweek》2001,138(11):70
  相似文献   
946.
A Linear Poisson Autoregressive Model: The Poisson AR(p) Model   总被引:1,自引:0,他引:1  
Time series of event counts are common in political scienceand other social science applications. Presently, there arefew satisfactory methods for identifying the dynamics in suchdata and accounting for the dynamic processes in event countsregression. We address this issue by building on earlier workfor persistent event counts in the Poisson exponentially weightedmoving-average model (PEWMA) of Brandt et al. (American Journalof Political Science 44(4):823–843, 2000). We developan alternative model for stationary mean reverting data, thePoisson autoregressive model of order p, or PAR(p) model. Issuesof identification and model selection are also considered. Wethen evaluate the properties of this model and present bothMonte Carlo evidence and applications to illustrate.  相似文献   
947.
A community policing program consisting of citizen input and problem solving techniques often results in a decision to police places and translates into lower crime rates at the policed locations. Proponents of community policing programs believe that they build social capital, which invests neighborhood citizens in the crime reduction efforts and reduces the simultaneous occurrence of potential offenders and victims required for crimes to be committed.  相似文献   
948.
The MMPI-2 and the Inwald Personality Inventory were employed to investigate the personality characteristics of dropouts from a state police academy. A traditional model of training borrowed from military models was used at the academy rather than a police generated model. Sensitive and independent individuals, more compatible with modern community policing methods may have rejected police work as a result of the experience. 15 academy completers and 9 dropouts were used in the sample. Analyses of the scales of the MMPI-2 and the Inwald Personality Inventory identified variables upon which the two groups differed. The hypothesis that more sensitive, empathic and independent individuals were leaving the academy appeared to be supported.  相似文献   
949.
The paper explains why the productivity of information technology (IT) in the service sector of the U.S. economy is increased by the provision of infratechnology. The size and growth of the service sector and its investment in IT are discussed, and a key fact and a key inference are developed. The fact: The absorption costs of IT are the vast majority of the IT investment costs to the service sector. The inference: Infratechnology investments are an efficient way to increase both private and social benefits of incurring the cost of implementing IT.  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