全文获取类型
收费全文 | 219篇 |
免费 | 8篇 |
专业分类
各国政治 | 12篇 |
工人农民 | 6篇 |
世界政治 | 12篇 |
外交国际关系 | 13篇 |
法律 | 121篇 |
中国政治 | 1篇 |
政治理论 | 62篇 |
出版年
2023年 | 2篇 |
2022年 | 1篇 |
2021年 | 5篇 |
2020年 | 7篇 |
2019年 | 6篇 |
2018年 | 16篇 |
2017年 | 7篇 |
2016年 | 15篇 |
2015年 | 7篇 |
2014年 | 20篇 |
2013年 | 34篇 |
2012年 | 13篇 |
2011年 | 24篇 |
2010年 | 8篇 |
2009年 | 6篇 |
2008年 | 8篇 |
2007年 | 7篇 |
2006年 | 7篇 |
2005年 | 4篇 |
2004年 | 1篇 |
2003年 | 5篇 |
2002年 | 5篇 |
2001年 | 3篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1987年 | 1篇 |
1984年 | 1篇 |
1980年 | 1篇 |
1979年 | 2篇 |
1978年 | 3篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 2篇 |
排序方式: 共有227条查询结果,搜索用时 15 毫秒
51.
The U.S. Supreme Court decisions in Daubert v. Merrell Dow Pharmaceuticals Inc. and Kumho Tire Co. Ltd. v. Carmichael transformed the way scientific expert evidence was reviewed in courts across the United States. To gauge the impact of these rulings on the admission of forensic identification evidence, the authors analyzed 548 judicial opinions from cases where admission of such evidence was challenged. Eighty-one cases (15%) involved exclusion or limitation of identification evidence, with 50 (65.7%) of these failing to meet the "reliability" threshold. This was largely because of a failure to demonstrate a sufficient scientific foundation for either the technique (27 cases) or the expert's conclusions (17 cases). The incidence of exclusion/limitation because of a lack of demonstrable reliability suggests that there is a continuing need for the forensic sciences to pursue research validating their underlying theories and techniques of identification to ensure their continued acceptance by the courts. 相似文献
52.
Jan N Marclay F Schmutz N Smith M Lacoste A Castella V Mangin P 《Forensic science international》2011,213(1-3):109-113
The fight against doping is mainly focused on direct detection, using analytical methods for the detection of doping agents in biological samples. However, the World Anti-Doping Code also defines doping as possession, administration or attempted administration of prohibited substances or methods, trafficking or attempted trafficking in any prohibited substance or methods. As these issues correspond to criminal investigation, a forensic approach can help assessing potential violation of these rules. In the context of a rowing competition, genetic analyses were conducted on biological samples collected in infusion apparatus, bags and tubing in order to obtain DNA profiles. As no database of athletes' DNA profiles was available, the use of information from the location detection as well as contextual information were key to determine a population of suspected athletes and to obtain reference DNA profiles for comparison. Analysis of samples from infusion systems provided 8 different DNA profiles. The comparison between these profiles and 8 reference profiles from suspected athletes could not be distinguished. This case-study is one of the first where a forensic approach was applied for anti-doping purposes. Based on this investigation, the International Rowing Federation authorities decided to ban not only the incriminated athletes, but also the coaches and officials for 2 years. 相似文献
53.
Matt Andrews 《Public administration review》2011,71(3):345-348
The U.S. federal budgeting system faces severe challenges in coming years. Deficits are being recorded at levels and with regularity not seen in prior periods. This article suggests that such problems reflect the uncomfortable mix of logics informing budgetary and political institutions—that is, the rules of the game. Logics make it appropriate to expect that government be limited in its tax demands but simultaneously responsive in providing expensive services necessary for the achievement of the American dream, for example. Crisis is needed to allow the emergence of institutional forms that mediate between these conflicting logics. 相似文献
54.
The Influence of Foreign Voices on U.S. Public Opinion 总被引:1,自引:0,他引:1
Public opinion in the lead‐up to the 2003 Iraq War presents a puzzle. Despite the fact that domestic political elites publicly voiced little opposition to the invasion, large numbers of Americans remained opposed to military action throughout the pre‐war period, in contrast to the predictions of existing theory. We argue that some rank‐and‐file Democrats and independents expressed opposition because of the widely reported antiwar positions staked out by foreign, not domestic, elites. Merging a large‐scale content analysis of news coverage with public opinion surveys from August 2002 through March 2003, we show that Democrats and independents—especially those with high levels of political awareness—responded to dissenting arguments articulated in the mass media by foreign officials. Our results, which constitute the first empirical demonstration of foreign elite communication effects on U.S. public opinion, show that scholars must account for the role played by non‐U.S. officials in prominent foreign policy debates. 相似文献
55.
56.
Inter-firms R&D collaborations are often seen as an effective mean to access new resources, to innovate and/or to enter new markets in a turbulent environment characterized by fierce competition. However, all R&D partnerships do not have the same strategic importance. We analyze the strategic features of two types of partnerships that are seldom compared in the academic literature on R&D alliances: EU-sponsored inter-firms collaborations on the one hand, and non-sponsored, spontaneous inter-firm collaborations on the other. We compare their incentives and coordination mechanisms, and derive theoretical propositions that we test empirically. Our econometric analysis uses original data on (sponsored and non-sponsored) projects conducted by participants in the 5th and 6th European R&D Framework Programs. Our empirical findings support our main propositions. EU-funded collaborations are more exploratory and more focused on peripheral competences than spontaneous R&D collaborations. They are also less flexible, due to rigid monitoring rules which are nevertheless crucial to the projects?? success. However, there is no major difference between the different types of EU-sponsored collaborations, which pleads for a simplification of these policy instruments. 相似文献
57.
Page M Taylor J Blenkin M 《Journal of forensic sciences》2012,57(2):556; author reply 557-556; author reply 559
58.
Matt Qvortrup 《冲突和恐怖主义研究》2015,38(4):293-304
Can electoral reform lead to a reduction in the number of terrorist incidents? Economists have shown that the introduction of constitutional institutions such as courts in the early eighteenth century had a direct effect on investment. Could there be a similar link between the introduction of proportional representation (PR) electoral systems and a reduction in the number of terrorist attacks? Previous studies using cross-sectional data have found a negative correlation between the presence of PR-electoral systems and the number of terrorist incidents. However, earlier studies were based on aggregate figures, not on time-series data. They did not provide a direction that could be used to measure the possible effect of the introduction of PR. This research note addresses this problem. Using a paired samples t-test it is possible to show that the introduction of proportional representation in Northern Ireland and Algeria led to a marked reduction in the number of terrorist attacks. The note thus adds strength to earlier studies. 相似文献
59.
60.