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71.
Teixeira H Proença P Verstraete A Corte-Real F Vieira DN 《Forensic science international》2005,150(2-3):205-211
An analytical method using solid-phase extraction (SPE) and high-performance liquid chromatography-mass spectrometry (LC-MS) has been developed and validated for the confirmation of Delta(9)-tetrahydrocannabinol (THC) in oral fluid samples. Oral fluid was extracted using Bond Elut LRC-Certify solid-phase extraction columns (10 cm(3), 300 mg) and elution performed with n-hexane/ethyl acetate. Quantitation made use of the selected ion-recording mode (SIR) using the most abundant characteristic ion [THC+H(+)], m/z 315.31 and the fragment ion, m/z 193.13 for confirmation, and m/z 318.00 for the protonated internal standard, [d(3)-THC+H(+)]. The method proved to be precise for THC, in terms of both intra-day and inter-day analyses, with coefficients of variation less than 10%, and the calculated extraction efficiencies for THC ranged from 76 to 83%. Calibration standards spiked with THC between 2 and 100 ng/mL showed a linear relationship (r(2)=0.999). The method presented was applied to the oral fluid samples taken from the volunteers during the largest music event in Portugal, named Rock in Rio-Lisboa. Oral fluid was collected from 40 persons by expectoration and with Salivette. In 55% of the samples obtained by expectorating, THC was detected with concentration ranges from 1033 to 6552 ng/mL and in 45% of cases THC was detected at concentrations between 51 and 937 ng/mL. However, using Salivette collection, 26 of the 40 cases had an undetectable THC. 相似文献
72.
Devriendt W Piercecchi-Marti MD Adalian P Sanvoisin A Dutour O Leonetti G 《Journal of forensic sciences》2005,50(1):143-146
The use of pathological conditions in age and sex determination, important factors in personal identification, is not widespread in anthropology and legal medicine. Hyperostosis frontalis interna (HFI) is a bone condition that mainly affects the inner table of the frontal bone. Although there are numerous publications on the subject, at the present time its etiology remains obscure. Several associations of symptoms, whose incidence varies according to the population studied, have been described. Age and gender appear to be linked with the preponderance of this condition, as does the presence of behavioral disturbances. The aim of our study, based on a series of 1532 autopsies, was to define the incidence and the associations observed with other pathological conditions. Thirteen cases of HFI were identified (0.8% of autopsies), 12 women and one man whose mean age was 59.15 years (range: 42-79 years). All had behavioral disturbances and most were under psychiatric care. This study emphasizes the value of this condition in medico-legal identification. 相似文献
73.
The European Court of Justice (ECJ) has held that Article 9(2)of Directive 93/83 is to be interpreted as meaning that wherea collecting society is deemed to be mandated to manage therights of a copyright owner or holder of related rights whohas not transferred the management of his rights to a collectingsociety that society has the power to exercise that right holder'sright to grant or refuse authorization to a cable operator forcable retransmission and, consequently, its mandate is not limitedto management of the pecuniary aspects of those rights. 相似文献
74.
The financial surplus of agriculture has been central to theories of the role of agriculture in economic development. Morrisson and Thorbecke (MT) have used a constant‐price social accounting matrix (SAM) framework to measure rigorously the financial surplus of agriculture and decompose the mechanisms of surplus extraction. History and theory have, however, stressed the role of prices as an invisible transfer mechanism in addition to the visible transfers identified in the SAM framework. We extend the MT approach by defining and measuring the real surplus of agriculture and decomposing the mechanisms of surplus extraction between visible and invisible financial transfers. Using an archetype computable general equilibrium model for poor African nations, we trace the generation, transfer, and use of an agricultural surplus created by a productivity gain in agriculture. This shows that prices indeed play an overwhelmingly important role in transferring a surplus from agriculture to the benefit of the rest of the economy. 相似文献
75.
International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - Qu'apporte le linguistic turnà la philosophie du droit continentale? Il lui... 相似文献
76.
In recent years the demand for drug testing in oral fluid in cases of driving under the influence has been increasing. The main advantages of saliva/oral fluid are the possibility for non-medical personnel to collect it without embarrassment and a better correlation between presence of drugs in oral fluid and impairment. Several surveys have been performed since the 1980s using saliva, and researchers encountered problems related to insufficient sample volume and insufficient sensitivity of the analytical methods. Steady progress has been shown in sample collection, knowledge of toxicokinetics in oral fluid, reliability of on-site and laboratory-based immunoassays and confirmation methods. In a few countries, legislation was passed that allows the use of saliva as a matrix for screening or confirmation.Despite this progress, some more work needs to be done, principally in the areas of the sensitivity and reliability of on-site screening devices, particularly for cannabis and benzodiazepines, knowledge about passive contamination and more generalised proficiency testing before oral fluid testing for DUID will have the reliability needed to be used forensically. 相似文献
77.
Culture and Joint Gains in Negotiation 总被引:1,自引:0,他引:1
Brett Jeanne M. Adair Wendi Lempereur Alain Okumura Tetsushi Shikhirev Peter Tinsley Catherine Lytle Anne 《Negotiation Journal》1998,14(1):61-86
What effect does culture have on the achievement of joint gains in negotiation? Prior research has identified a number of strategies, for example sharing information about preferences and priorities, eschewing power, that lead to the development of joint gains when both negotiators are from the U.S. Are these same strategies used in other cultures? Are other strategies used? How effective are negotiators from different cultures in realizing joint gains? These are among the questions considered by the authors, whose research is based on data collected from negotiators from six different cultural backgrounds: France, Russia, Japan, Hong Kong, Brazil, and the U.S.
相似文献78.
The development and perpetuation of a functional dualism between the subsistence sector and the commodity‐producing sector is an objective outcome of the laws of capital accumulation in the periphery of the world capitalist system. The necessity for this dualism derives from the drive of capitalists to maximise profits and thus maintain low wages. Its possibility arises from social disarticulation whereby labour's income does not participate in expanding the market for the modern sector. Through dualism, surplus value is increased not only by the orthodox means of central economies—principally increasing the productivity of work to reduce necessary labour embodied in wage goods—but, in addition, and dramatically more effectively, by collapsing the price of agricultural labour by an amount equal to the production of use‐values by the worker's family in the subsistence plot. In this way, subsistence agriculture supplies cheap labour to commercial agriculture which, in turn, supplies cheap food to the urban sector where it sustains low wages. Socially disarticulated accumulation and functional dualism between capitalist and precapitalist modes perpetuate primitive accumulation in the modern sector based on surplus extraction from the peasant sector fundamentally via the labour market. This specific form of overexploitation of rural labour implies a particular dynamic in the use of labour and natural resources in subsistence agriculture. The pattern of rural poverty and the subjective contradictions of peripheral capitalism can thus largely be understood by identifying the antagonistic contradictions to which the subsistence economy is subject in adjusting to domination. 相似文献
79.
80.
The individual decision made by a judge does not only reflect his personal preferences about a case but also the expected response of the judicial community to the decision. We propose an analysis of judicial attitudes towards precedent based on the adoption externalities associated with legal rules. The situation is modelled as a coordination problem within a sequential game of two periods in which judges play a bandwagon strategy. 相似文献