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771.
The transfer and persistence of automotive carpet fibres to shoe soles was investigated. It was found that fibres were transferred with the normal activity of a car passenger. Carpet type and shoe sole parameters were significant determinants in the number of fibres that transferred. The average number of fibres was between about one and 33 per sole. Fibres that had been transferred after normal activity only persisted for a few minutes after walking. A survey of the shoe soles of people about to leave their car showed that fibres were usually present. The majority of shoe soles surveyed had less than five fibres with the greatest number of fibres found being 14. The likelihood of finding a large number of fibres on such soles is rare. Fibre composition of automotive carpets showed a high degree of variation. Grey was seen to be a common colour irrespective of the colour of the vehicle body. 相似文献
772.
Frawley DA Samaan MN Bull RL Robertson JM Mateczun AJ Turnbull PC 《Journal of forensic sciences》2008,53(5):1102-1107
The 2001 anthrax letter cases brought into focus the need to establish the most effective environmental sampling procedures. Results are presented from two studies aimed at establishing the best procedures for everyday surfaces likely to be contaminated after the release of environmentally stable bioaggressive agents, as exemplified by anthrax spores and ricin. With anthrax spores, contact plates, with mean retrieval rates of 28-54%, performed better than other methods by a wide margin for flat nonporous, nonabsorbent surfaces. They also proved best on flat porous, absorbent materials, although recoveries were low (<7%). For both agents, dry devices (swabs, wipes, Trace Evidence Collection Filters) had universally poor retrieval efficiencies with no significant differences between them. Among moistened devices (wipes, swabs, and Sample Collection and Recovery Devices), wipes were generally best, albeit with considerable cross-over among individual readings (highest mean recoveries for anthrax spores and ricin 5.5% and 2.5%, respectively, off plastic). 相似文献
773.
Wesley G. Jennings Chris Gibson Lonn Lanza-Kaduce 《American Journal of Criminal Justice》2009,34(3-4):198-212
Over the past several decades, the juvenile justice system has struggled with an effective response to status offenders and their unwanted behaviors. Three divergent rationales have emerged for handling these youth: (1) treatment, (2) deterrence, and (3) normalization. Using data from over 300 youth under supervision by agencies in three states, the current study assesses how these differing practices are related to youths’ self-concepts. Results provide support for both deterrence and normalization-based rationales over the historical treatment-based rationale. Viewing status offending as normal adolescent behavior (i.e., normalization) has the most beneficial effect on self-concept. Study limitations and directions for future research are discussed. 相似文献
774.
Michael Colella M.Sc. Andrew Parkinson B.Sc. Tegan Evans B.Sc. Chris Lennard Ph.D. Claude Roux Ph.D. 《Journal of forensic sciences》2009,54(3):583-590
Abstract: Continual reports of illicit trafficking incidents involving radioactive materials have prompted authorities to consider the likelihood of forensic evidence being exposed to radiation. In this study, we investigated the ability to recover latent fingermark evidence from a variety of substrates that were exposed to ionizing radiation. Fingermarks deposited on common surfaces, including aluminum, glass, office paper, and plastic, were exposed to doses ranging from 1 to 1000 kGy, in an effort to simulate realistic situations where evidence is exposed to significant doses of radiation from sources used in a criminal act. The fingermarks were processed using routine fingermark detection techniques. With the exception of glass and aluminum substrates, radiolysis had a considerable effect on the quality of the developed fingermarks. The damage to ridge characteristics can, in part, be attributed to chemical interactions between the substrate and the components of the fingermark secretions that react with the detection reagents. 相似文献
775.
This article examines the politics of place in relation to legal mobilization by the anti-nuclear movement. It examines two case examples – citizens' weapons inspections and civil disobedience strategies – which have involved the movement drawing upon the law in particular spatial contexts. The article begins by examining a number of factors which have been employed in recent social movement literature to explain strategy choice, including ideology, resources, political and legal opportunity, and framing. It then proceeds to argue that the issues of scale, space, and place play an important role in relation to framing by the movement in the two case examples. Both can be seen to involve scalar reframing, with the movement attempting to resist localizing tendencies and to replace them with a global frame. Both also involve an attempt to reframe the issue of nuclear weapons away from the contested frame of the past (unilateral disarmament) towards the more universal and widely accepted frame of international law. 相似文献
776.
Reducing Emissions from Deforestation and Forest Degradation (REDD+) is one of the most advanced global climate governance arrangements and we show that it contributes to the buildup of autonomous capacities and reliable procedures in areas of rather limited statehood. These partially unintended effects can be conceptualized as an increasing rational–legal bureaucratization, which has been initiated through both external and domestic actors as we illuminate in the case of Indonesia's forestry sector in the period from 2007 until 2017. Our finding is that a bureaucratization of a new kind is increasingly strengthened in Indonesia's forest despite enduring patterns of neopatrimonialism, emerging signs of new public management approaches, and the strengthening of functional equivalents such as community-based forest management. We thus claim that Max Weber's perspective on the prospects and problems of rational–legal bureaucratization is still valuable, even when travelling to the tropics. 相似文献
777.
778.
Chris Brown 《Global Society》2004,18(1):5-19
Since 1815 it has been generally understood that the Great Powers acting in concert have some responsibility for ensuring/underwriting order and stability within international society—although it is clear that only occasionally have they actually discharged this responsibility. Contemporary conditions, where there is only one superpower, change the situation radically; the United States may be able to take the lead in organising the provision of global public goods such as an open global economy and a secure strategic environment, but it also may possess the capacity to promote its own particular conception of the good in the world— the conservatism characteristic of a concert of Powers may not dominate the actions of a single superpower. However, changes in the nature of "power' ' in an age of globalisation and "Empire'' may actually limit the capacity of any actor, or collection of actors, to discharge its responsibilities. 相似文献
779.
Kacinko SL Barnes AJ Kim I Moolchan ET Wilson L Cooper GA Reid C Baldwin D Hand CW Huestis MA 《Forensic science international》2004,141(1):41-48
Oral fluid is an interesting alternative matrix for drug testing in many environments, including law enforcement, workplace drug testing, and drug treatment facilities. Performance characteristics of the FDA-cleared, qualitative, Cozart RapiScan Opiate Oral Fluid Drug Testing System (Opiate Cozart RapiScan System or Opiate CRS) were compared to the semi-quantitative Cozart Microplate EIA Opiate Oral Fluid Kit (Opiate ELISA) and to gas chromatography/mass spectrometry (GC/MS). The following oral fluid opiate cutoffs were evaluated: the GC/MS limit of quantification (LOQ) of 2.5 mg/l; 15 microg/l currently used for oral fluid testing in the United Kingdom (UK); 30 microg/l (Opiate CRS cutoff); and 40 microg/l, the proposed Substance Abuse and Mental Health Services Administration (SAMHSA) cutoff. Subjects provided informed consent to participate in this IRB-approved research and resided on the closed research ward throughout the study. Three oral codeine doses of 60 mg/70 kg were administered over a 7-day period. After a 3-week break, subjects received three doses of 120 mg/70 kg within 7 days. Oral fluid specimens (N = 1273) were analyzed for codeine (COD), norcodeine (NCOD), morphine (MOR) and normorphine (NMOR) by GC/MS with an LOQ of 2.5 microg/l for all analytes. MOR and NMOR were not detected in any sample; 26.5% of the specimens were positive for COD and 13.7% for NCOD. Opiate CRS uses a preset, qualitative cutoff of 10 microg/l; this is equivalent to 30 microg/l in undiluted oral fluid as the oral fluid collection process involves a 1:3 dilution with buffer. Sensitivity, specificity, and efficiency of Opiate CRS compared to Opiate ELISA were 98.6, 98.1, and 98.2% at a 30 microg/l cutoff and 99.0, 96.2, and 96.6% at a 40 microg/l cutoff. Compared to the much lower GC/MS LOQ of 2.5 microg/l, sensitivity, specificity and efficiency were 66.8, 99.3 and 90.7%. Increasing the GC/MS cutoff to the current UK level yielded performance characteristics of 81.5% (sensitivity), 99.3% (specificity), and 95.4% (efficiency). Using a GC/MS cutoff identical to the preset Opiate CRS cutoff yielded sensitivity, specificity, and efficiency of 88.5, 99.2, and 97.5%, respectively. At the proposed SAMSHA confirmation cutoff of 40 microg/l, sensitivity increased with little change in specificity and efficiency (91.3% sensitivity, 98.9% specificity, and 97.5% efficiency). Oral fluid is a suitable matrix for detecting drugs of abuse. Opiate CRS, with a 30 microg/l cutoff, is sufficiently sensitive, specific and efficient for oral fluid opiate analysis, performing similarly to Opiate ELISA at the same cutoff, and having performance characteristics >91% when compared to GC/MS at the proposed SAMHSA cutoff. 相似文献
780.