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   589篇
  免费   22篇
各国政治   24篇
工人农民   26篇
世界政治   77篇
外交国际关系   69篇
法律   223篇
中国共产党   1篇
中国政治   3篇
政治理论   187篇
综合类   1篇
  2023年   3篇
  2022年   2篇
  2021年   9篇
  2020年   6篇
  2019年   18篇
  2018年   18篇
  2017年   24篇
  2016年   26篇
  2015年   5篇
  2014年   23篇
  2013年   110篇
  2012年   17篇
  2011年   14篇
  2010年   14篇
  2009年   23篇
  2008年   16篇
  2007年   21篇
  2006年   36篇
  2005年   26篇
  2004年   26篇
  2003年   27篇
  2002年   19篇
  2001年   15篇
  2000年   4篇
  1999年   8篇
  1998年   7篇
  1997年   7篇
  1995年   4篇
  1994年   5篇
  1993年   4篇
  1991年   3篇
  1990年   5篇
  1989年   11篇
  1988年   5篇
  1987年   10篇
  1986年   6篇
  1985年   2篇
  1984年   4篇
  1983年   3篇
  1982年   2篇
  1981年   3篇
  1980年   3篇
  1978年   4篇
  1977年   2篇
  1974年   1篇
  1973年   2篇
  1970年   1篇
  1967年   1篇
  1962年   1篇
  1961年   1篇
排序方式: 共有611条查询结果,搜索用时 31 毫秒
121.
122.
123.
124.
This paper situates food safety concerns raised in the Brexit debate since the referendum and suggests that, although the issue of chlorinated chicken entered public discourse, it represents wider concerns about food safety standards. Food safety has had high resonance in the UK since the 1980s, but Brexit shows how it connects to wider concerns also raised about Brexit, such as impacts on healthcare, the effects of austerity on food poverty, the limitations of low waged employment, concerns about migration and labour markets, and regional economic disparities. Brexit’s impact on the UK food system is immense because food has been highly integrated into EU governance. While food standards can be portrayed as a single narrow issue, the paper suggests it provides a useful lens with which to examine, interrogate and comprehend these wider Brexit politics. The complex realities of food politics and wider food system dynamics undermine any simplistic political narrative of ‘taking back control’.  相似文献   
125.
Indirekte Landnutzungs?nderungen beim Anbau von Energiepflanzen k?nnen die Treibhausgasminderungsbilanz von Energie aus Biomasse herabsetzen und Biodiversit?t sowie Boden- und Wasserressourcen beeintr?chtigen. Um derartige Effekte in rechtliche Regelungen über die Nachhaltigkeit von Bioenergie einzubeziehen, wurden verschiedene Ans?tze vorgeschlagen. Eine überzeugende Methodologie steht bis heute jedoch noch nicht zur Verfügung. Der Beitrag gibt einen überblick über die diskutierten Methoden, bietet eine vergleichende Bewertung und leitet hieraus rechtspolitische Empfehlungen ab.  相似文献   
126.
127.
128.
Amylase testing has been used as a presumptive test for crime scene saliva for over three decades, mainly to locate saliva stains on surfaces. We have developed a saliva screening application for crime scene trace swabs, utilising an amylase sensitive paper (Phadebas® Forensic Press test). Positive results were obtained for all tested dried saliva stains (0.5–32 μL) with high or intermediate amylase activity (840 and 290 kU/L). Results were typically obtained within 5 min, and all samples that produced DNA profiles were positive. However, salivary amylase activities, as well as DNA concentrations, vary significantly between individuals. We show that there is no correlation between amylase activity and amount of DNA in fresh saliva. Even so, a positive amylase result indicates presence of saliva, and thereby presence of DNA. Amylase testing may be useful for screening in investigations where the number of DNA analyses is limited due to cost, e.g., in volume crime.  相似文献   
129.
This article focuses on the changing level of participation of voluntary organisations in the policy process between 1964 and 2009 and its implication for the role played by voluntary organisations to the state. Drawing on data from the remiss procedure – one of the most understudied parts of the Swedish policy‐making process – the results implicate a reduced role for voluntary organisations in formal arenas for policy making. While the number of participating voluntary organisations has remained stable, the relative share of participating organisations has declined and an increasing proportion of organisations have abstained from participating. In addition, the shares of conflict‐oriented and member‐benefit‐oriented organisations have decreased while consensus‐oriented and public‐benefit‐oriented organisations appear to have increased slightly. These findings are discussed in the context of changes in the coordination and implementation of public policies, implying that over time the role of voluntary organisations as arenas for deliberation and mediators of individual interests tend to have gradually lost ground in relation to the state while the share of organisations taking direct welfare responsibility has slightly increased. Although it may be premature to speak about a shifting role of voluntary organisations from input to output in the political system, the result suggest an emerging trend in that direction. Further research is needed to clarify whether this changing pattern of participation is evident in other arenas for policy making in Sweden or is an isolated feature explained from the outset of the remiss procedure.  相似文献   
130.
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