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The Journal of Technology Transfer - 相似文献
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There have been several high profile criminal and civil cases that have been litigated in recent years involving toxicologic analyses and interpretations of blood, urine, and other specimens for drugs of abuse. Disputes have erupted between prominent toxicologists and laboratory scientists as to the validity and interpretation of the data presented. The disputes centered around the fact that the procedures used in these cases had not been properly validated with analytical noise being misinterpreted as a positive result. As with any analyses, forensic tests must be conducted in a manner such that they meet the minimum standards accepted within the toxicology community. No conclusions as to presence or absence of drug, its concentration, or its physiologic effects can be made if there is a failure to meet these basic standards. Several cases are presented where these standard tenets may not have been followed. 相似文献
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The authors discuss legal, ethic, and technological problems associated with introduction of drug testing by analysis of hair in Russia. There are sufficiently reliable methods of hair analysis, but lack of legal basis and poor equipment of forensic chemical departments impede the introduction and wide use of these methods in Russia. The authors propose certification of the best equipped departments and render them the legal status of regional centers for tests for narcotics and psychotropic agents. 相似文献
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Castella V Dimo-Simonin N Brandt-Casadevall C Mangin P 《Forensic science international》2006,156(1):70-73
The potential to recover genetic profiles from evidence samples has substantially increased since robust and sensitive amplification kits are commercially available. Nevertheless, even the best amplification kits cannot succeed when the extracted DNA is of poor quality. In this study we compared the efficiency of silica (QIAamp DNA Mini Kit), Chelex and Phenol-Chloroform (PC) based protocols to recover DNA from different categories of samples (blood and saliva on cotton swabs, muscles, cigarette butts, saliva on foods and epidermal cells on clothes). The efficiency of the QIAamp system was improved when samples were treated with QIAshredder homogenizing columns. Overall, conventional Chelex or PC protocols allowed to recover conclusive SGM Plus profiles for 61% of the samples considered in this study. Contrastingly, 82% of them were successfully genotyped after being treated with a combination of QIAshredder and QIAamp systems. Our results further suggested that the QIAshredder/QIAamp protocol was particularly helpful to analyze evidence samples with few DNA and/or that were collected on substrates containing PCR inhibitors. 相似文献
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Carl N. Stephan Ph.D. 《Journal of forensic sciences》2015,60(3):566-571
Facial approximation was first proposed as a synonym for facial reconstruction in 1987 due to dissatisfaction with the connotations the latter label held. Since its debut, facial approximation's identity has morphed as anomalies in face prediction have accumulated. Now underpinned by differences in what problems are thought to count as legitimate, facial approximation can no longer be considered a synonym for, or subclass of, facial reconstruction. Instead, two competing paradigms of face prediction have emerged, namely: facial approximation and facial reconstruction. This paper shines a Kuhnian lens across the discipline of face prediction to comprehensively review these developments and outlines the distinguishing features between the two paradigms. 相似文献
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Abstract Software companies would like to be able to control what their customers and reviewers can say about them and their software. To this end, many include in their license agreements “DeWitt” or “gagwrap” clauses which purport to prevent written reviews or disclosure of benchmark test results involving the software without the manufacturer's consent. While the courts have recognized the enforceability of software licenses to protect manufacturers, they have so far not addressed the enforceability of gagwrap clauses. This article examines gagwrap clauses and examines them in a public policy framework arising from contract and First Amendment jurisprudence. It proposes a test for the enforceability of the clauses that leaves in place many agreements not to speak but renders gagwrap clauses suspect on public policy grounds. 相似文献