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151.
Olds WJ Jaatinen E Fredericks P Cletus B Panayiotou H Izake EL 《Forensic science international》2011,212(1-3):69-77
Spatially offset Raman spectroscopy (SORS) is a powerful new technique for the non-invasive detection and identification of concealed substances and drugs. Here, we demonstrate the SORS technique in several scenarios that are relevant to customs screening, postal screening, drug detection and forensics applications. The examples include analysis of a multi-layered postal package to identify a concealed substance; identification of an antibiotic capsule inside its plastic blister pack; analysis of an envelope containing a powder; and identification of a drug dissolved in a clear solvent, contained in a non-transparent plastic bottle. As well as providing practical examples of SORS, the results highlight several considerations regarding the use of SORS in the field, including the advantages of different analysis geometries and the ability to tailor instrument parameters and optics to suit different types of packages and samples. We also discuss the features and benefits of SORS in relation to existing Raman techniques, including confocal microscopy, wide area illumination and the conventional backscattered Raman spectroscopy. The results will contribute to the recognition of SORS as a promising method for the rapid, chemically specific analysis and detection of drugs and pharmaceuticals. 相似文献
152.
Explaining the Consequences of Imprisonment for Union Formation and Dissolution in Denmark 下载免费PDF全文
Crime and subsequent imprisonment reduces men's chances on the marriage market and increases their divorce risk, but existing research, with a few notable exceptions, is silent about the underlying mechanisms driving these effects. This article studies the effect of home confinement under electronic monitoring as a noncustodial alternative to imprisonment on the risk of relationship dissolution and being single, thereby distinguishing between effects of incarceration and of committing crime. We study a policy that expanded the use of electronic monitoring to address nonrandom selection into electronic monitoring instead of in prison. Results from a sample of 4,522 men show that home confinement under electronic monitoring significantly and persistently lowers the risk both of being single and of becoming single during the first five years following conviction. The results show that one of the tools that could promote decarceration trends also secures better relationship outcomes of convicted men. 相似文献
153.
Peter Chalk 《冲突和恐怖主义研究》2013,36(2):89-106
The Golden Triangle of Southeast Asia lies at the heart of the global heroin trade, accounting for roughly 60 percent of all illicit opium production. Narcotics from this part of the world have had an insidious, corrosive, far reaching and, at times, highly destabilizing impact. In particular, they have been linked to an explosion of AIDS, social instability, a lack of economic performance, official corruption and the growing force of organized crime. These effects have been felt, in one form or another throughout Southeast Asia, North America, Australasia, and Northeast Asia. Dealing with the threat posed by the Golden Triangles heroin trade will require a fully inclusive strategy that emphasizes both supply disruption and demand reduction. While certain Southeast Asian states have pledged to intensify the scope and effectiveness of their drug policies, official apathy is widespread and continues to mitigate against effective counter-measures. 相似文献
154.
Zuzana Caplova M.Sc. Zuzana Obertova Ph.D. Daniele M. Gibelli M.D. Ph.D. Debora Mazzarelli M.Sc. Tony Fracasso M.D. Peter Vanezis O.B.E. Ph.D. Chiarella Sforza M.D. Ph.D. Cristina Cattaneo M.D. Ph.D. 《Journal of forensic sciences》2017,62(5):1286-1291
In humanitarian emergencies, such as the current deceased migrants in the Mediterranean, antemortem documentation needed for identification may be limited. The use of visual identification has been previously reported in cases of mass disasters such as Thai tsunami. This pilot study explores the ability of observers to match unfamiliar faces of living and dead persons and whether facial morphology can be used for identification. A questionnaire was given to 41 students and five professionals in the field of forensic identification with the task to choose whether a facial photograph corresponds to one of the five photographs in a lineup and to identify the most useful features used for recognition. Although the overall recognition score did not significantly differ between professionals and students, the median scores of 78.1% and 80.0%, respectively, were too low to consider this method as a reliable identification method and thus needs to be supported by other means. 相似文献
155.
Jamie K. Pringle Ph.D. John P. Cassella Ph.D. John R. Jervis Ph.D. Anna Williams Ph.D. Peter Cross M.Sc. Nigel J. Cassidy Ph.D. 《Journal of forensic sciences》2015,60(4):1052-1060
In homicide investigations, it is critically important that postmortem interval and postburial interval (PBI) of buried victims are determined accurately. However, clandestine graves can be difficult to locate; and the detection rates for a variety of search methods (ranging from simple ground probing through to remote imaging and near‐surface geophysics) can be very low. In this study, simulated graves of homicide victims were emplaced in three sites with contrasting soil types, bedrock, and depositional environments. The long‐term monthly in situ monitoring of grave soil water revealed rapid increases in conductivity up to 2 years after burial, with the longest study evidencing declining values to background levels after 4.25 years. Results were corrected for site temperatures and rainfall to produce generic models of fluid conductivity as a function of time. The research suggests soilwater conductivity can give reliable PBI estimates for clandestine burials and therefore be used as a grave detection method. 相似文献
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159.
Peter Grindley David C. Mowery Brian Silverman 《Journal of policy analysis and management》1994,13(4):723-758
This article reviews the experience of SEMATECH as a model for high-technology research consortia. SEMATECH's original aims of developing next-generation manufacturing technology proved hard to achieve, and the program has refocused on generic technology and the equipment industry infrastructure. Though more modest, these new objectives have produced significant tangible results. The study considers the reasons for the change and implications for consortium design. This is contrasted with the history of other major collaborative research programs in Japan, Europe, and the United States. 相似文献
160.
This paper investigates the effectiveness of New Jersey's mandatory belt use law (MUL) by testing specifically for: (1) a safety effect, and (2) a risk-compensation effect that could offset (in part) any safety impact. The main findings are that injury severity declined significantly in the 22 months following implementation of the MUL; but that accident frequency increased significantly. The increase in accidents may be explained only partially by increased driving mileage. These findings suggest that the real safety effect of the law may have been diluted by risk-compensating behavior.This paper is based on a study conducted for the New Jersey Office of Highway Traffic Safety by the Rutgers University Bureau of Economic Research. We are grateful to William Ascher and two referees for useful comments. 相似文献