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   322篇
  免费   11篇
各国政治   25篇
工人农民   54篇
世界政治   28篇
外交国际关系   15篇
法律   161篇
中国政治   3篇
政治理论   44篇
综合类   3篇
  2023年   3篇
  2022年   2篇
  2021年   2篇
  2020年   17篇
  2019年   11篇
  2018年   16篇
  2017年   17篇
  2016年   12篇
  2015年   13篇
  2014年   13篇
  2013年   51篇
  2012年   15篇
  2011年   8篇
  2010年   8篇
  2009年   19篇
  2008年   14篇
  2007年   12篇
  2006年   9篇
  2005年   12篇
  2004年   10篇
  2003年   10篇
  2002年   10篇
  2001年   4篇
  2000年   3篇
  1999年   1篇
  1998年   1篇
  1997年   4篇
  1995年   2篇
  1994年   4篇
  1993年   4篇
  1992年   1篇
  1991年   3篇
  1990年   3篇
  1989年   1篇
  1987年   1篇
  1986年   1篇
  1984年   5篇
  1982年   5篇
  1981年   2篇
  1977年   2篇
  1975年   1篇
  1974年   1篇
排序方式: 共有333条查询结果,搜索用时 15 毫秒
271.
272.
273.
In cases of sexual assault involving an azoospermic assailant, vaginal swabs taken from the victim may fail to provide an autosomal DNA profile with which to search a suspect database, as the signal from any male cells present would be masked by that from the overwhelming number of female cells collected on the swab. Here, we describe a method of visually identifying diploid male cells in such samples using fluorescence in situ hybridisation, and selectively harvesting them by means of laser microdissection. This combination of techniques was tested on 26 post-coital vaginal swabs taken at a range of times after intercourse; the collected cells were then subjected to a simple lysis procedure and DNA was amplified using the AmpFlSTR® SGMPlus® multiplex under low copy number conditions. Useful DNA profiles were generated from samples taken up to 24 h after intercourse.  相似文献   
274.
This article addresses the question of the relevance of the most recent soft policy instrument of the EU, the open method of coordination (OMC), for organising actions at European level in politically sensitive areas. In addition to describing its origins and operational principles, we will compare its application to the areas of employment and social inclusion. Two hypotheses make up the structure of the text. The first is that the discourses produced in the framework of OMC in the areas of employment and social inclusion are broad enough to cater to the different welfare models, but that the changes to be made by the Member States to be in line with the European discourses differ considerably, depending on their welfare state family and their initial situation. The second is that the form of OMC is variable, depending on policy area. Our conclusions confirm both of these hypotheses.  相似文献   
275.
This article considers the lacunae in international and Europeanlaw for the protection of those who do not, or do not yet, havetheir refugee status recognised, or whose claim for asylum hasbeen refused. It examines the position of such people in theUK, where they are ‘temporarily admitted’ underprovisions of the general immigration legislation. This meansthat although their physical presence is recognised and notunlawful, they are legally considered not to have entered thecountry. Whilst historically this was a favourable positionthat might itself often lead to naturalisation, the legal positionof those on temporary admission has changed rapidly and drasticallyover the past decade as rights to work and to social securityhave been withdrawn and a programme of mass detention instigated.These developments have in turn led to attempts by those ontemporary admission to use international and European law toattain or reinstate rights and to resist removal. This articleexamines the changes to UK law and policy since the first primarylegislation dealing with asylum in 1993, in the light of internationaland European law, and suggests that they will lead a new categoryof undocumented sans-papiers in the UK.  相似文献   
276.
277.
278.
Governments throughout the world are requiring greater use of economic analysis as a way of informing policy decisions. This paper provides a comprehensive analysis of the use of impact assessment in the European Union, using US assessments as a benchmark. We find that recent EU impact assessments include more economic information than they did in the past, although important items are still missing. We also provide evidence that the quality of EU impact assessment increases with the expected cost of a proposal. Furthermore, we find that the quality of EU assessments that report high total costs is similar to that of US assessments.  相似文献   
279.
280.
In recent years, interest has soared in the development potential of well‐designed cash transfer programs. One particular application is the use of transfers by resource‐rich countries (as recently initiated by Iran) to distribute rents across their populations. An emerging body of research suggests that the development impact of such programs tends to be positive and that, especially when received by poor individuals or households, they can unlock constraints on economic activities, allowing a further increase in income. This paper considers the use of biometric technology to underpin transfer programs and how new technology is opening up possibilities for effective transfer programs that, up to now, have only been a theoretical option in the institutional conditions that prevail in many developing countries. Once implemented, biometric identification systems can be used to support a wide range of other development initiatives including banking, voting, health care, and general identification systems. The paper reviews some of the programs using these technologies and how it is enabling poor countries to leapfrog rich ones in the area of identity, much as the cellphone revolution did in the area of communications.  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