全文获取类型
收费全文 | 52篇 |
免费 | 5篇 |
专业分类
各国政治 | 4篇 |
世界政治 | 3篇 |
外交国际关系 | 3篇 |
法律 | 35篇 |
中国政治 | 1篇 |
政治理论 | 3篇 |
综合类 | 8篇 |
出版年
2018年 | 3篇 |
2016年 | 3篇 |
2015年 | 4篇 |
2014年 | 3篇 |
2013年 | 5篇 |
2012年 | 1篇 |
2011年 | 2篇 |
2010年 | 2篇 |
2009年 | 1篇 |
2008年 | 8篇 |
2007年 | 3篇 |
2006年 | 3篇 |
2005年 | 1篇 |
2001年 | 4篇 |
2000年 | 1篇 |
1999年 | 5篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1985年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有57条查询结果,搜索用时 62 毫秒
41.
Sophie Clot Gilles Grolleau Lisette Ibanez 《European Journal of Law and Economics》2016,42(3):491-513
According to the so-called ‘self-licensing effect’, committing to a virtuous act in a preceding choice may lead to behave less virtuously in the succeeding decision. Consequently, well-intentioned policies can lead to overall counter-productive effects by licensing people to behave badly in related behaviors. On the other side, motivational crowding theory argues that constraining people to adopt a desirable behavior can backfire. We use of a classroom experiment to test whether a regulatory framework to incentivize individuals to adopt pro-environmental behavior generate similar spillovers in terms of licensing effect than a non-regulatory framework. We show that the way the good deed is caused doesn’t seem to influence the licensing effect. Nevertheless, we found that business- and environmental-orientated majors react adversely to the regulatory framework. We show that environmental-orientated students exhibit higher intrinsically motivations than business-orientated ones. Accordingly, we suggest that the licensing effect is more likely to arise when the preceding ‘virtuous’ act is freely chosen (respectively regulatory caused) for non-intrinsically (respectively intrinsically) motivated individuals. 相似文献
42.
Bourel B Hédouin V Martin-Bouyer L Bécart A Tournel G Deveaux M Gosset D 《Journal of forensic sciences》1999,44(2):354-358
This study concerns the effects of morphine in tissues on the rate of development of Lucilia sericata (Diptera: Calliphoridae) using those tissues as a food source. Lucilia sericata is a species of fly commonly found on human corpses in Europe during the early stages of decomposition and thus of forensic interest. Three rabbits were administered 12.5, 25.0 and 50.0 mg/h of morphine chlorhydrate via ear perfusion over a period of 3 h. These dosages and duration of perfusion were calculated to give tissue concentrations of morphine similar to those encountered in fatal human overdoses. A fourth rabbit was used as a control. Following administration of the drug, rabbits were sacrificed and 400 eggs of Lucilia sericata, all of the same age, were placed in the eyes, nostrils and mouth of each rabbit. Developing larvae were sampled daily to determine growth rate and weight. Puparia and emerging adult flies were also sampled. Data were analyzed using analysis of variance (ANOVA) and Student's T-test. Results of this study show that an underestimation of the postmortem interval of 24 h is possible if the presence of morphine in tissues is not considered. This study demonstrates again the necessity of considering the possible effects of drugs in tissues on insect growth rates when estimating the postmortem interval using entomological techniques. 相似文献
43.
44.
Morphine extraction in necrophagous insects remains for determining ante-mortem opiate intoxication.
B Bourel G Tournel V Hedouin M Deveaux M L Goff D Gosset 《Forensic science international》2001,120(1-2):127-131
To study the potential use of insects remains as toxicological indicators, we measured morphine in desiccated entomological materials using a radioimmunoassay method (Coat-A-Count Serum Morphine, Dade Behring, France) following enzymatic hydrolysis.First, enzymatic cuticle extraction of morphine (pronase digestion preceded by a 2h incubation with a dithiothreitol solution) was performed on various substrates (Calliphoridae puparial cases and desiccated adults, and desiccated pupae of Dermestidae) which were then tested to identify possible interferences with the radioimmunoassay procedure.This same procedure was performed on puparial cases and desiccated adults of Lucilia sericata (Diptera, Calliphoridae) previously reared on minced meat containing various morphine concentrations. Morphine was detected only in cuticle powder from insects reared on meats containing 100 and 1000mg/kg. Higher concentrations were measured in puparial cases. Rearings on psoas from eight heroin overdose victims confirmed previous experimental results.Remains of necrophagous insects, particularly puparial cases, are often preserved for a long time, and consequently can serve as late alternative specimens for toxicological analysis when suitable tissues are not available. 相似文献
45.
46.
Drawing on a survey of top executives in central governments in 11 European countries (N = 5,190), this study explores variations in the extent and scale of managerial autonomy across and within European states. The article is based on a comparative, multidimensional and relational approach to autonomy. Confirming predictions of qualitative studies, it shows that these variations can partly be explained by the intensity of New Public Management (NPM) reforms and provides a typology of European countries connecting the intensity of neo‐managerial reforms (measured by the declared use of management tools) to the degree of managerial autonomy. Our findings support Donald Kettl's hypothesis differentiating countries where the ‘let the manager manage’ model prevails, as in the Northern countries, by contrast with those, such as the United Kingdom, dominated by the ‘make the manager manage’ programme. The promise of managerial autonomy has also not been delivered to the same extent across and within countries. 相似文献
47.
In early 2007, the Indonesian government decided to withhold its samples of the avian influenza (‘bird flu’) virus from WHO's collaborating centres, pending a new global mechanism for virus sharing which would provide better terms for developing countries. The 60th World Health Assembly held in May 2007 subsequently resolved to establish an international stockpile of avian influenza vaccines, and to formulate mechanisms for equitable access to these vaccines. The article asks whether there are there analogous opportunities for study volunteers or donors of biological materials to exercise corresponding leverage to advance health equity. 相似文献
48.
Gilles Riaux 《Nationalities Papers》2013,41(3):341-356
This article is an attempt to explore the territoriality of languages in the context of ethno-national mobilizations. It maps the transnational interplay between linguistic spaces that overlap national frameworks. This makes it possible to scrutinize the horizontal and vertical differentiation processes that contribute to the definition of a distinctive literary field. In order to study these processes, we favor a strong empirical anchorage by referring to the notion of transnational historical space, defined as a configuration which covers both spatial and temporal dimensions, bringing territories into contact and linking various temporalities. Our case presents a large geographic space formed by Turkey, the Republic of Azerbaijan, and Iranian Azerbaijan. This unusual scale of analysis helps in understanding how ethnic entrepreneurs can capitalize symbolic resources in their strategies to make their ethnic idiom into a national language and to invest the political field with ethnonational claims. 相似文献
49.
Thanks to an intertemporal analytical model, we incorporate aspirational consumers in Veblen markets for luxury fashion items. We show how a luxury monopolist can increase its profits thanks to the presence of counterfeit products. The genuine producer profit is shaped by two opposite effects: (1) a positive aspirational effect resulting from a sales increase due to the aspirational consumers who seek to imitate the lifestyle of snob consumers (2) a negative snob effect, resulting from a sales decrease due to the reduction of consumption by some snob consumers. We identify the conditions under which the overall effect generated by counterfeiting can increase the genuine firm profit. These conditions imply the existence of large aspirational effects and high additional utility gain associated with buying an original product instead of obtaining a counterfeit product. 相似文献
50.
Gilles Grolleau Lisette Ibanez Naoufel Mzoughi 《European Journal of Law and Economics》2007,24(3):215-236
Industrialists may promote eco-labeling schemes in order to gain the support of environmentalists and ultimately gain market
protection. Beyond the environmental effects of such coalitions, these schemes can provide industrialists a legitimate way
to disadvantage rivals, frequently foreign rivals, by raising their costs. We consider a Stackelberg model that determines
the conditions under which a domestic firm has incentive to impose an eco-label in order to raise the costs of its foreign
rivals. The effects of eco-labeling on domestic social welfare are ambiguous. Policy recommendations are drawn. Notably, factors
that may help policy makers to identify situations more vulnerable to undesirable outcomes from a welfare viewpoint are developed.
相似文献