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   1814篇
  免费   78篇
各国政治   92篇
工人农民   67篇
世界政治   163篇
外交国际关系   128篇
法律   874篇
中国共产党   1篇
中国政治   49篇
政治理论   506篇
综合类   12篇
  2023年   10篇
  2021年   15篇
  2020年   36篇
  2019年   43篇
  2018年   74篇
  2017年   80篇
  2016年   59篇
  2015年   42篇
  2014年   61篇
  2013年   294篇
  2012年   52篇
  2011年   81篇
  2010年   46篇
  2009年   44篇
  2008年   75篇
  2007年   77篇
  2006年   89篇
  2005年   66篇
  2004年   64篇
  2003年   61篇
  2002年   38篇
  2001年   21篇
  2000年   23篇
  1999年   20篇
  1998年   24篇
  1997年   21篇
  1996年   14篇
  1995年   21篇
  1994年   27篇
  1993年   18篇
  1992年   13篇
  1991年   14篇
  1990年   12篇
  1989年   14篇
  1988年   17篇
  1987年   18篇
  1986年   10篇
  1985年   17篇
  1984年   11篇
  1983年   15篇
  1982年   13篇
  1979年   10篇
  1978年   13篇
  1977年   11篇
  1976年   12篇
  1975年   13篇
  1974年   11篇
  1973年   8篇
  1972年   11篇
  1967年   8篇
排序方式: 共有1892条查询结果,搜索用时 0 毫秒
961.
Jeremy Smith 《欧亚研究》2019,71(6):972-993
Abstract

The essay challenges the frequent references to the concept of Soviet nationality policy by historians and social scientists. The argument proceeds, first, by unpicking some of the logic in the use of the term; second, by examining the evidence for the existence and nature of such a policy; and third, by considering alternative explanations for major decisions and events concerning non-Russian nationalities in the Soviet Union. The essay concludes that, at least after the 1920s, there was no Soviet nationality policy, and the processes of negotiation and nation-promoting practices pursued by republic leaders were, instead, the key influences on decision-making.  相似文献   
962.
The following report summarizes a study performed on seized drug exhibits collected in two U.S. states to evaluate the presence and identification of cutting agents. Aliquots of seized drug materials from Kentucky (n = 200) and Vermont (n = 315) were prepared using a dilute‐and‐shoot procedure. Initial analysis was performed using gas chromatography–mass spectrometry (GC‐MS) followed by analysis using liquid chromatography quadrupole time‐of‐flight mass spectrometry (LC‐QTOF). Active compounds detected overall included caffeine (31.0%), quinine/quinidine (24.7%), levamisole (11.6%), acetaminophen, (8.2%) and procaine (8.2%). These compounds were found with several drugs of abuse, such as heroin, fentanyl, methamphetamine, and cocaine. This novel information about cutting agents used to dilute or alter drugs of abuse is important to criminal investigations and in the management of acute intoxications at health centers. However, common methodologies for analysis and standard reporting practices frequently do not include cutting agents, resulting in lacking or inadequate information regarding prevalence of these substances.  相似文献   
963.
The prevalence of psychosis among prisoners in England and Wales is ten times that in the household population and UK government policy is that prisoners should receive equivalent care to those in the community. This study investigated the implications of policy to divert more from the criminal justice system for psychiatric treatment. Psychotic prisoners were compared with psychotic persons in households and with other prisoners in two surveys of psychiatric morbidity in representative samples of the UK population. Psychotic prisoners were younger, more from ethnic minorities, with comorbid anxiety, substance misuse, ASPD, and childhood behavioural problems compared to psychotic persons in households. Less than a third had received previous inpatient treatment. Psychotic prisoners had similar criminal histories and higher psychopathy scores than non-psychopathic prisoners. Diversion is unfeasible without improved screening for psychosis and increasing bed numbers at higher levels of security to accommodate more patients who would pose high risk to the public. Future research should investigate why UK psychiatric services fail to identify psychotic prisoners and provide aftercare.  相似文献   
964.
965.
966.
967.
968.
969.
970.
Expert surveys are frequently used in comparative politics to measure the ideological locations of political parties. However, it is possible that increasing the number of parties to place systematically biases results as experts try to fit more actors onto a common space. We test this possibility with an experiment embedded in an “expert” survey – with graduate students serving as our pool of experts to ensure an adequate sample size – by varying the number of parties to be placed in the United Kingdom and Germany. We find some tendency for the variance of Labor and SPD placements to diminish when more parties are present, and for SPD placements to move toward the center given more parties. However, we find no consistent evidence that the number of parties systematically affects mean or median party placements. Our results support the reliability of expert surveys as an indicator of party ideology.  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