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排序方式: 共有70条查询结果,搜索用时 15 毫秒
1.
Armstrong A Babrauskas V Holmes DL Martin C Powell R Riggs S Young LD 《Journal of forensic sciences》2004,49(4):741-748
Tests have determined that boots or shoes of individuals at a fire scene do not transport sufficient contaminants ("tracking") through the fire scene to produce a positive laboratory result for the presence of gasoline in a fire scene that was not present at the time of the fire. Questions about the validity of forensic laboratory results have been raised on the basis that low-level gasoline residues detected in the laboratory samples could have been the result of transporting the residue by footwear contaminated from the fire scene ("tracking"). The data collected in this study establish that "tracking" does not lead to false-positive laboratory results. Canines trained and experienced in the detection of trace ignitable liquid residues were also utilized in this study. The canine results confirmed that properly trained canines show a higher sensitivity than do standard ASTM laboratory techniques for fire debris analysis. In a few cases, canines responded to contamination, but laboratory testing (which is the definitive indicator) did not produce positive results. 相似文献
2.
Callus T 《Medical law international》2003,6(1):1-11
In adopting a purposive interpretation of the definition of the term "embryo" in the Human Fertilisation & Embryology Act 1990, the Court of Appeal judgement in R(on the application of B. Quintavalle on behalf of Pro-Life Alliance) v. Secretary of State for Health effectively stifled democratic debate on the development of therapeutic cloning techniques. Instead of being evidence of the flexibility of of the statute to adapt to the rapid evolution of scientific techniques, the judgment bears witness to a certain dependence of the law on scientific criteria and moreover, raises the question of legitimate judicial function. Indeed, judges should not be seen to be deciding questions of social choice that should ultimately be decided through the democratic process. Although the purposive approach may be objectively justified, it is suggested that the appeal judges erred in their appreciation of the very purpose of the 1990 Act. It is argued that the Parliamentary debates in 1990 illustrate that the purpose of the 1990 Act does not go beyond the area of procreation and embryo research in this context. Consequently, it is claimed that no economy should have been made on a full democratic debate. By preventing such a debate, the Court of Appeal appears to admit that the law has become servile to the scientific, political and a fortiori economic, interests at stake. 相似文献
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Little is known about how older women cope in long-term abusive intimate relationships. Understanding their coping strategies may give insight into how to further support their effective coping efforts. Interviews were conducted with 38 women older than age 55 years. Grounded theory analysis demonstrated that women who remained in their abusive relationships employed mainly cognitive (emotion-focused) strategies to find meaning in a situation that was perceived as unchangeable. By reappraising themselves, their spouses, and their relationships they refocused energies in certain roles, set limits with their abusers, and reached out to others (friends, family, and community organizations). Some women appeared to thrive, others merely survived, but all maintained the appearance of conjugal unity. 相似文献
5.
Jackowski C Bolliger S Aghayev E Christe A Kilchoer T Aebi B Périnat T Dirnhofer R Thali MJ 《Journal of forensic sciences》2006,51(5):1134-1137
Postmortem investigation is increasingly supported by computed tomography (CT) and magnetic resonance imaging, in which postmortem minimal invasive angiography has become important. The newly introduced approach using an aqueous contrast agent solution provided excellent vessel visualization but was suspected to possibly cause tissue edema artifacts in histological investigations. The aim of this study was to investigate on a porcine heart model whether it is possible to influence the contrast agent distribution within the soft tissue by changing its viscosity by dissolving the contrast agent in polyethylene glycol (PEG) as a matrix medium. High-resolution CT scans after injection showed that viscosities above c. 15 mPa s (65% PEG) prevented a contrast agent distribution within the capillary bed of the left ventricular myocardium. Thereby, the precondition of edema artifacts could be reduced. Its minimal invasive application on human corpses needs to be further adapted as the flow resistance is expected to differ between different tissues. 相似文献
6.
The past 20 years of research has exposed the profound cost of intimate partner violence (IPV) in health care problems and health care dollars for victims and bystanders. As a result, professional organizations encourage clinicians to identify IPV victims and to refer them to community resources. To date there is little evidence to show the value of these efforts, and many completed studies are criticized for methodological weaknesses. IPV studies are challenging to design, and the double-blind randomized controlled trial may be an impossible standard. To move forward, funders and study committees are encouraged to reassess the standards for IPV research methodologies. 相似文献
7.
Cory L. Struthers 《英联邦与比较政治学杂志》2018,56(4):523-546
Scholars argue that members of parliament (MPs) in first-past-the-post (FPTP) systems have stronger incentives to cater to their electoral district than those in proportional representation (PR) types. Yet, few studies have explored whether MPs in PR systems or MPs from small parties engage local issues in general. I build new theory and explore its support through a case study that compares Green party behaviour in an FPTP system (the UK) to a PR system (New Zealand). Results show that MPs focus on local issues in both systems, but the distribution of attention varies in ways consistent with differing electoral incentives. 相似文献
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Cost effectiveness is a key principle of climate policies in industrialised countries, yet there are significant political barriers against its implementation. The Norwegian case demonstrates that differences in the climate policy instruments targeting different sectors cannot be explained by the sectors' relative significance in the national economy. Whereas the economically insignificant energy‐intensive industries (EIIs) successfully resisted mandatory greenhouse gas (GHG) regulations until 2008, the offshore petroleum industry (the most important sector for Norway's gross domestic product) has paid NOK 300 per tonne of CO2 since 1991. What explains why some sectors successfully resist GHG regulations while others do not? This analysis indicates that a key determinant is interdependence between target groups and decision makers in winning coalitions. EIIs were capable of issuing relevant and credible threats to shut down and relocate if costly GHG policies were imposed. In contrast, decision makers did not perceive as credible the offshore petroleum industry's claim that a CO2 tax would undermine its competitiveness. Moreover, when target groups can issue effective threats, private information becomes more relevant and reinforces decision makers' dependence on target group cooperation. 相似文献
10.
Hagan MP Anderson DL Caldwell MS Kemper TS 《International journal of offender therapy and comparative criminology》2010,54(1):61-70
This study looked at 12 juveniles in Wisconsin who were recommended by experts for commitment under Chapter 980, known as the Sexually Violent Person Commitments Act, but who ultimately were not committed. The purpose was to determine the accuracy of these assessments and risk for sexual reoffending for juvenile sexual offenders. The results found a rate of 42% sexual recidivism among these individuals, with a 5-year at-risk period. This figure is in contrast to the low rates of sexual recidivism reported in the general juvenile sexual research. This provides evidence that the capability to assess the risk in juvenile sexual re-offending may at times be higher than previously estimated. Implications of these unusual results are discussed. 相似文献