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Gilchrist E Jongekrijg F Harvey L Smith N Barron L 《Forensic science international》2012,219(1-3):50-56
Gunshot residue (GSR) is commonly analysed in forensic casework using either scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX) or gas chromatography-mass spectrometry (GC-MS). Relatively little work has been reported on the post-discharge GSR content of non-metallic inorganic or low molecular weight organic anions to distinguish between different ammunition types. The development of an analytical method using suppressed micro-bore anion exchange chromatography (IC) is presented for the analysis of GSR. A hydroxide gradient was optimised for the separation of 19 forensically relevant organic and inorganic anions in <23min and sensitivities of the order of 0.12-3.52ng of anion detected for all species were achieved. Along with an optimised extraction procedure, this method was applied to the analysis of post-ignition residues from three selected ammunition types. By profiling and comparing the anionic content in each ammunition residue, the possibility to distinguish between each type using their anionic profiles and absolute weight is presented. The potential for interference is also discussed with respect to sample types which are typically problematic in the analysis of GSR using SEM-EDX and GC-MS. To the best of our knowledge this represents the first study on the analysis of inorganic anions in GSR using suppressed ion chromatography. 相似文献
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In the increasingly competitive, knowledge-based economy, universities have a variety of potential roles for stimulating economic
development beyond teaching, research and technology development. In this article we focus on universities’ role as actors
in the governance of local and regional development. Using recently developed theories about the emergence of heterarchical
governance, we discuss the motivations, interests, structural arrangements, and contingent conditions for universities becoming
actors and partners in steering regional economic development policy and contributing to regional problem-solving, and explore
the how university involvement may increase the effectiveness of governance processes. We test several hypotheses and draw
lessons for the design and participation of governance arrangements. Our results suggest that individual leadership initiatives
and the quality or interpersonal working relationships among leaders may be more important than the particular structural
arrangements for producing effective governance outcomes. 相似文献
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The purpose of this paper is to examine the increasing emphasis of the UK anti-money laundering (AML) legislative framework, on the financial arrangements of criminals. Our qualitative study engaged key stakeholders from the AML environment through a series of focus groups. This included law enforcement; accountants; prosecutors; bankers and, importantly, ex-offenders. We argue that the inclusion of the views of a traditionally hard to reach group of ex-offenders, adds significantly to knowledge and understanding about effectiveness of AML. The research findings suggest that, at first glance, the focus on asset recovery has been successful. However, our respondents shared with us areas of tension and inconsistencies in application of the law, in particular between police and the courts. For example, whether it was better to prosecute the predicate offence separately or in addition to the offence of money laundering; or whether to pursue criminal or civil recovery. We further find that criminals have been able to use their knowledge to circumvent the system, suggesting that greater effort is needed to promote cooperation, rather than competition, in successfully detecting and prosecuting offenders. 相似文献
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Ross Harvey 《South African Journal of International Affairs》2013,20(3):413-420
This study addresses compliance and business practices at the local level subsequent to the international adoption of the Kimberley Process Certification Scheme by states and the adoption of the voluntary System of Warranties by the diamond industry. This paper also explores the distance between norm creation, norm sustainability and norm expansion. Interests of various stakeholders led to the creation of international norms, and evidence supports widespread compliance at the state level. Data gathered at the local level of retailer suggests, however, that the regulatory system is not leading to the education of consumers that potentially transforms beliefs. Central to understanding the challenge of deepening and broadening new global norms is exploring the distance between compliance within the regulatory regime and the awareness or change of beliefs of stakeholders. Recommendations include steps to make the process of bringing diamonds to market transparent and available to public scrutiny. 相似文献
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Danielle M. Butzbach Ph.D. Peter C. Stockham B.Sc. Hilton J. Kobus Ph.D. D. Noel Sims B.Sc. Roger W. Byard M.D. Robert J. Lokan M.Sc. George Stewart Walker Ph.D. 《Journal of forensic sciences》2013,58(1):90-100
The stability of two benzisoxazole antipsychotics was determined in vitro in decomposing porcine blood inoculated with bacteria, utilizing a high‐performance liquid chromatography with ultraviolet and fluorescence detection method for drug quantitation. Stability experiments for risperidone and paliperidone were conducted at 7, 20 and 37°C for 4 days using sterile and bacterially inoculated porcine blood. The drugs were stable in sterile blood at each temperature and in inoculated blood at 7°C, but degraded significantly in inoculated blood at 20 and 37°C. Complete loss occurred within 2 days when incubated at 37°C. The benzisoxazole‐cleaved degradation products for both drugs were identified as 2‐hydroxybenzoyl‐risperidone and 2‐hydroxybenzoyl‐paliperidone utilizing liquid chromatography quadrupole‐time‐of‐flight mass spectrometry and accurate mass measurements. The degradation products have been found in postmortem case studies, including one case where risperidone and paliperidone were not detected, indicating complete conversion can occur in situ. 相似文献