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31.
Abstract: Thin layer chromatography (TLC) is a technique that is commonly employed in the forensic drug analysis of pharmaceutical preparations. Detection is typically accomplished using various visualization spray reagents. Conventional gas chromatography–mass spectrometry (GC‐MS) analysis is typically performed to confirm the TLC results. Depending on the drugs tested and the instrument conditions required, this confirmation can take up to an hour to complete. Direct analysis in real time (DART?) is an ionization source, coupled to an accurate‐mass time‐of‐flight mass spectrometer that has the capability to ionize materials under ambient conditions. To streamline analysis, the combination of TLC with DART? detection is proposed to screen and subsequently identify drug compounds, all from the same TLC plate. DART? confirmations of TLC analyses take <10 min to complete and compare favorably to GC‐MS in sensitivity and selectivity. This study validates the use of TLC‐DART in the forensic identification of the components of several pharmaceutical preparations. 相似文献
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Dedouit F Telmon N Guilbeau-Frugier C Gainza D Otal P Joffre F Rougé D 《Journal of forensic sciences》2007,52(4):960-964
The body of an unidentified elderly woman was found trapped in a floodgate. Prior to autopsy, full-body multislice computed tomography (MSCT) was performed for study of bone lesions and cause of death. Age was estimated by analysis of the sternal end of the fourth rib and of the pubic symphyseal medial articular surfaces. The results were then compared with the autopsy findings. MSCT was superior to autopsy in diagnosis of traumatic bone lesions and also revealed dental anomalies and signs of drowning. Age estimation gave a similar result for both methods. This case report illustrates the potential value of MSCT for medico-legal investigations of death: diagnosis of injuries, possibility of determining the cause of death, and anthropological study in order to estimate age or to visualize features likely to enable identification of a corpse. 相似文献
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Boot camp programs were first introduced in the 1980s, became increasingly popular as a correctional sanction, and were widely adopted and implemented throughout the United States. This study involved an examination of the prevalence of state run boot camps for juvenile delinquents and a systematic review of the existing evaluations of boot camp programs that house juveniles. In addition to the effects of boot camps on recidivism, within program effects on participants’ attitudes and perceptions of boot camp, and jurisdiction-level effects on bed space were examined. Findings revealed that boot camps are less prevalent than they were in the 1990s. Boot camps, by themselves, typically do not have an effect on participants’ odds of recidivism. Boot camps do seem to improve individuals’ attitudes and other behaviors within programs. Boot camps also appear to reduce the number of confinement beds jurisdictions require, often resulting in cost savings. These findings are discussed in terms of their implications for research and practice. 相似文献
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Using Canada's relations with the Americas as a case study, this article seeks to better understand the link between identity and foreign policy. It argues that there is a gap between the Canadian government's recent efforts to construct a state identity increasingly turned toward the Americas and Canadians' national identity as it is expressed through public opinion. It concludes that the most plausible explanation for this gap probably has to do with Canada's European cultural heritage. The analysis shows that the projection of national identity into foreign policy is a much more complex process than the projection of state identity. 相似文献
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Jean‐Philippe Platteau 《发展研究杂志》2013,49(5):714-717
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Why does bureaucratic corruption occur in the EU system? Several examples suggest that bureaucratic corruption exists and that the Commission’s anti-fraud agency, OLAF, is not a fully independent authority. We thus develop a novel interpretation of the principal-supervisor-agent model to cope with non-independent anti-fraud units. This model shows that corruption is likely to occur when the expected value to the client from bribing the agent is larger than the expected value to the principal of truth-telling by the supervisor. Overall, this analysis points to the risks of flawed incentives and the lack of institutional independence among principal, agent, supervisor and client. Our main policy recommendations as a result of these findings are that OLAF should be placed outside the Commission, and that whistleblowers should receive adequate protection. 相似文献
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Zara Steiner 《Diplomacy & Statecraft》2013,24(2):23-44
What explains the persistence and proliferation of the resident ambassador? Why is the role apparently important both to the conduct of international affairs and to the work of governments? I do not try to propose a new theory of ambassadors, but I do offer conclusions about the nature of living in a globalized society of states where the economic logic of markets and the political logic of communities are at cross‐purposes. It is a world in which we depend on institutions to help us maintain order and stability. Ambassadors are one of those institutions. At one level they are the concrete day by day reproduction of the society of states. At another level they act on behalf of the members of their community, helping that community to maintain its strength and cohesion by doing what needs to be done, abroad. An increase in the intensity of interactions among states, therefore, seems to lead to an increase in diplomatic representation facilitated rather than impeded by the new technologies of transportation and communications. Ambassadors are still lying abroad, it seems, because changes in technology have brought ‘abroad’ much closer to home while the myriad effects of globalization have made much more of abroad relevant to people and their governments. Far from being in decline, the resident ambassador seems likely to continue flourishing. 相似文献