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   787篇
  免费   35篇
各国政治   100篇
工人农民   42篇
世界政治   59篇
外交国际关系   56篇
法律   402篇
中国政治   63篇
政治理论   96篇
综合类   4篇
  2023年   6篇
  2022年   4篇
  2021年   17篇
  2020年   25篇
  2019年   27篇
  2018年   39篇
  2017年   45篇
  2016年   29篇
  2015年   34篇
  2014年   35篇
  2013年   79篇
  2012年   61篇
  2011年   103篇
  2010年   27篇
  2009年   18篇
  2008年   40篇
  2007年   25篇
  2006年   26篇
  2005年   29篇
  2004年   39篇
  2003年   34篇
  2002年   25篇
  2001年   10篇
  2000年   5篇
  1999年   3篇
  1998年   1篇
  1997年   10篇
  1996年   2篇
  1995年   1篇
  1994年   4篇
  1993年   3篇
  1992年   1篇
  1991年   3篇
  1990年   2篇
  1989年   1篇
  1988年   1篇
  1987年   1篇
  1986年   1篇
  1984年   1篇
  1983年   1篇
  1978年   1篇
  1967年   2篇
  1959年   1篇
排序方式: 共有822条查询结果,搜索用时 15 毫秒
71.
Relations between the European Union (EU) and regional subgroups in Latin America (Mercosur, the Andean Community and Central America) are clear examples of ‘pure interregionalism’ and provide evidence of the EU's active promotion of regional integration. Within the context of these cases, this article explores what type of international power the EU wields, how interregionalism is embedded in that power, and how it is deployed. Combining strands of literature on EU–Latin American relations, interregionalism, EU external policy and power provides a framework within which interregionalism can be understood as an important normative and practical tool for the EU's external power projection. Drawing on official documentation and interviews with key individuals, the paper highlights the EU's articulation of power in interregional relations and reflects upon its mixed success. It concludes that, while imperial qualities and aspirations can be observed in the EU's penchant for interregionalism, the transformative power of the EU remains limited.  相似文献   
72.
The extraction of DNA from human skeletal remains applied to forensic, and evolutionary studies do not exclude risks, which are to be evaluated when working with unique specimens that could be damaged or even destroyed. In the present study were evaluated several nondestructive methods for recovering DNA instead of the most currently used pulverization method. Three different procedures to access inside the dental pieces (occlusal perforation, cervical perforation, and cervical cut) have been compared with the aim of recovering as many cell remains as possible to carry out a DNA extraction. Given the DNA quantitation results, a method was proposed that consists of a cervical cut to facilitate the access to the pulp cavity and a subsequent filing of the root canals down to the apex of the dental root. This methodology allows the recovery of both mitochondrial and nuclear DNA, with the minimum deterioration for the dental pieces.  相似文献   
73.
Research into maximizing the speed, precision, and reliability of estimating the postmortem interval (PMI) has been a recurring object of investigation and methodologies based on the vitreous humor (VH) have provided good results. However, contamination from causes not readily apparent, such as blood, can occur, and thus lead not only to an erroneous estimation of PMI, but also interfere with the correct identification of other substances in the VH. We have developed a flow cytometry method which quantifies blood contamination and is able to detect erythrocytes in 1:750,000 dilution of contaminated VH which affects the results of hypoxanthine. It is an improvement on the previous more complex mass spectrometry method, being faster, more sensitive, and readily available. As such, it could be proposed for the rapid screening of appropriate samples by detecting and eliminating blood contaminated samples from PMI estimation.  相似文献   
74.
75.
76.
The Covenant of Mayors (CM) is the mainstream European movement involving local authorities who voluntarily commit to increase energy efficiency and the use of renewable energy sources within their territories with the aim of reducing CO2 emissions and meet the European Union objectives by 2020. One country that has a greater number of signatories of this agreement is Spain. This article analyzes which factors influence the decision of Spanish local authorities to join the ever‐growing movement. An empirical model is formulated to describe the behavior of Spanish local governments, this being a binary choice model which is a function of various political, economic, and technical factors. Among the prominent factors that influence this decision are population, availability of renewable energy, fiscal and environmental stress, citizens’ political preference, the contagion effect of neighboring municipalities, the existence of covenant coordinators, and finally, economic motivations.  相似文献   
77.
This paper examines the instrumental networks established between organized criminals and national politicians. Its major focus centers on the International Brotherhood of Teamsters, the Department of Labor, and the Reagan Administration. We explore the organized crime influence that affected President Reagan's selection of Raymond Donovan as Secretary of Labor. The choice of Donovan resulted in several related investigations into Donovan's association with organized criminals primarily in the construction industry in New Jersey and New York. We explain and critique the investigations thereby establishing the instrumental quality of the networks and the politics of law enforcement. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   
78.
Abstract: Recent case-law of the Court of Justice on general interest exceptions to the free provision of services has indicated a flexible approach to general interest exceptions involving moral or ethical issues. In contrast, where the general interest exception is relied on in a case which demonstrates predominantly economic issues, it is subject to strict scrutiny, in particular, with reference to the principle of proportionality. The article analyses the Court's case-law and tries to deduce the criteria which now govern the Court's position. It also highlights difficulties which this two-tier approach may excite. The position of the Court of Justice reflects the lack of homogeneous European ethical and moral standards, but it also underlines the predominantly economic character of European integration to date. It is submitted, nevertheless, that divorcing the economic criteria for integration from general ethical considerations will prove an extremely difficult, if not fruitless, task.  相似文献   
79.
80.
This study explored the sense of community among women (n = 21) and women with children (n = 30) living in Oxford Houses, with emphasis on how the presence of children might affect the household. Sense of community did not vary between participants with more or less than three months residence. Residents reported very high levels of satisfaction with the home, possibly because of a ceiling effect of little room for increases in their sense of community over time. Participants reported that they were getting along with the children in the home, that mothers could count on babysitting help, and that the children had a positive effect on the household and their own recovery process. This effect did not differ between mothers and non-mothers, suggesting that non-mothers might view the children in the home with a sense of responsibility and sensitivity comparable to that of the mothers. Implications are discussed.  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