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排序方式: 共有1576条查询结果,搜索用时 15 毫秒
1.
社会分工条件下侦查主体面临着信息成本无限扩张与侦查能力相对有限之间的矛盾,社会变迁及科技发展为侦查主体加强对个体信息的渗透提供了无限可能,但这种可能性受到私权的严格限制。信息交易为侦查主体提供了一种新的低代价的信息获取渠道。  相似文献   
2.
A method has been developed on reverse phase high performance liquid chromatography for simultaneous determination of methyl, ethyl and isopropyl alcohols under refractive index detection using pure water as the mobile phase. A good separation has been achieved between these alcohols. Detector response was linear with a detection limit of 5 mg/100 ml. Recovery studies were performed by adding known amounts of methyl and ethyl alcohols to blood, lung and liver within the range 80–90%. The reproducibility of the results was always >90%. The quantitative distribution of methyl alcohol in postmortem body tissues and fluids has been reported in three cases of poisoning.  相似文献   
3.
This article offers an analysis of the European airline industry in order to understand the new dynamics of the competitive field. The liberalization process did not lead the entrance of competitors similar to incumbents, but a new organizational model has been developed, the one of low cost carriers. The incumbents’ reaction to the liberalization process coupled with the entrance of low cost companies into the sector are hence considered. Two theories are analysed: the contestable markets theory, to understand the theoretical vision that has influenced the liberalization process, and the core theory, a modern approach to the concept of destructive competition that, according to some authors, is a recurring problem in the sector. While numerous barriers to entry still exist, the paper examines how the organizational model of low cost companies has helped new entrants to overtake these obstacles. By the same token, the application of the core theory does not seem to justify strategic alliances taking place in these years. The competitive framework is definitely clearer if we analyse sector changes in a different way, from the point of view of low cost companies considered as new market actors.  相似文献   
4.
Banks are “special” financial institutions generating distinct corporate governance challenges. The present paper examines the relationship between two of the most pertinent corporate governance factors—that is, the size of the Board of Directors and the proportion of non-executive directors—and firm performance on a sample of 58 large European banks over the period 2002–2004. The empirical analysis embraces a number of bank-specific variables. Our results reveal that bank profitability is negatively related to the size of the Board of Directors, while the impact of Board composition, although positive in all models, is, in most cases, insignificant. The results are robust after controlling for firm-specific variables.   相似文献   
5.
Blood previously acidified with aqueous saturated ammonium chloride solution was extracted with ethyl acetate. The dried extract was subjected to acetonitrile–hexane partition. The acetonitrile portion was analysed for the presence of acidic and neutral drugs by HPLC–DAD (200 mm×2.1 mm I.D. microbore ODS-Hypersil column) and GC–FID (25 m narrow-bore×0.25 mm I.D. HP-5 column with 0.33 μm film thickness). The protocol was found to be suitable for both clinical toxicology (including emergency toxicology) and postmortem toxicology. At least 66 drugs of interest were unequivocally identified by RRTs (HPLC) and UV spectra (DAD) match while another 12 were unequivocally identified by double RRTs match (HPLC and GC). Quantitation was facilitated by incorporating calibration blood standards in each assay batch. The five drugs most commonly encountered in clinical blood specimens (1150 cases) were: paracetamol (47.4% of the cases); chlormezanone (6.6%), theophylline (1.74%), naproxen (1.65%) and mefenamic acid (1.56%). The following drugs were detected in toxicologically significant quantities in postmortem blood specimens (245 cases): phenobarbitone (1.22% of the cases), naproxen (0.82%), chlormezanone (0.82%), theophylline (0.82%), carbamazepine (0.41%) and paracetamol (0.41%).  相似文献   
6.
中外政府绩效管理的行政生态学比较   总被引:1,自引:0,他引:1  
无论在理念上还是在实践中,要完善我国政府绩效管理,提升政府绩效以满足公众需要,改善政府形象,必须从行政生态学角度出发,基于自身特定的环境背景,建立我国政府绩效管理的内部系统。必须完善政府绩效管理的内部生态,强调内外生态间的相互作用与影响,才能促进我国政府绩效管理取得成功。  相似文献   
7.
本文以个案调查为基础,描述了我国乡镇行政权力的运作模式及其特征,在此基础上,对影响乡镇政府绩效的几方面因素进行了合理解释。  相似文献   
8.
经济理论中的数理分析理论运用到对涉税犯罪案件的侦查中来,可用成本公式“收入-成本= 利润”对涉税犯罪案件的作案手法、证据搜集和线索作分析、确认,从而为经济犯罪侦查人员提供一种新的侦查方法,为涉税犯罪案件侦查创造一种新的思路。  相似文献   
9.
我国给付不能制度体系之考察   总被引:3,自引:0,他引:3  
王洪亮 《法律科学》2007,25(5):134-144
我国给付障碍统一构成要件规则来自于德国"不履行"理论,但合同法并未统一法律效果,也未根据法律效果结构请求权基础,履行不能的制度功能并未因为统一构成要件而消失.在履行不能制度功能上,由于免责事由规定过窄,出现了债权人与债务人利益失衡的情形,而且没有规定对待给付当然消灭规则.在履行不能类型上,没有规定自始不能、部分不能、暂时不能、人身不能等规则,对此需要通过理论继受加以补充,在法律上还要明确经济上不能与情势变更之间的关系.在履行不能与瑕疵担保规则、风险负担规则竞合的情况下,应优先适用瑕疵担保规则、风险负担规则.  相似文献   
10.
刑事司法的高效率不仅仅指司法过程的迅速和司法资源的低消耗,而且指司法过程良好的社会效果和社会成本的最低支付.司法的社会效果与社会成本被忽视,反映出人们司法效率理念的缺陷.提高刑事司法效率,应当注重司法过程的社会效果,防止司法成本社会化.  相似文献   
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