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排序方式: 共有103条查询结果,搜索用时 15 毫秒
81.
Blood, brain, and hair GHB concentrations following fatal ingestion   总被引:1,自引:0,他引:1  
Despite the increasing incidence of illicit use of gamma-hydroxybutyrate (GHB), little information is available documenting levels of the drug in GHB fatalities. We measured GHB levels in postmortem blood, brain and hair specimens from a suspected overdose case by gas chromatography/mass spectrometry (GC/MS) following solid phase extraction (SPE) and derivatization with bis(trimethyl-silyl) trifluoroacetamide (BSTFA). Examination found 330 microg/mL GHB in femoral blood and 221 ng/mg GHB in frontal cortex brain tissue, values higher than those typically reported in the literature. The hair shaft was negative for GHB whereas the plucked root bulbs with outer root sheath attached (2,221 ng/mg) and root bulbs after washing and removal of the outer root sheath (47 ng/mg) contained the drug. Our results are consistent with an acute single dose of GHB and, as the toxicology screen was negative for other drugs of abuse, emphasize the significant danger of this drug.  相似文献   
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This article seeks to make a contribution to theory development by explicating the competing approaches (explanatory frameworks and research methods) that can be used in the analysis of episodes of global governance failures—undesirable events (such as war, or incidents of international terrorism) and behaviors (such as rogue political leaders accumulating weapons of mass destruction or supporting international terrorist groups) that are a consequence of the ineffectiveness of a global governance process. It does so by constructing a methodological taxonomy, which enables the identification of the competing philosophical methodologies that underpin contending perspectives on the causation of, and solutions to, episodes of global governance failures, by reference to contesting understandings of what knowledge is (an epistemological issue) and what exists that is capable of giving rise to consequences (an ontological issue). It then identifies the epistemological and ontological challenges facing policy analysts seeking to analyze and address global governance failure. Meeting these challenges requires the adoption of a methodology that draws insights from the epistemological and ontological syntheses that have emerged within contemporary social theory.  相似文献   
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Many women are unprepared to make prenatal decisions about fetuses diagnosed with Down Syndrome because of societal pressures to have "normal" children, a negative view of persons with disabilities by many in society, a fear of legal liability by those in the medical community, the lack of genuine informed consent before undergoing genetic testing and abortion, and the failure of non-directive pre-abortion counseling in the medical community. Moreover, medical professionals fail to communicate correct and unbiased information before and during the genetic screening, diagnostic testing, and abortion decision-making process. This article addresses the contributing factors and causes that ultimately lead to a lack of informed consent and a very high abortion rate for fetuses diagnosed with Down Syndrome.  相似文献   
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Journal of Youth and Adolescence - Although prior studies have indicated athletic identity plays a role in alcohol use among college athletes, this research has largely drawn on a unidimensional...  相似文献   
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This article examines the relationship between foreign direct investment in the mineral sector and environmental regulation in developing countries. It argues that two major trends in global mineral investment have emerged in recent years: increased competition amongst developing countries to attract mineral investment, and the development and proliferation of a standard set of legal protections for mineral investors including access to international arbitration, prohibitions of expropriation without compensation, and commitments to stability of the regulatory regime. Both of these trends may have implications for environmental policy, which are examined in the paper both in general terms and in the context of a detailed case study concerning mineral exploitation in Ghana’s forest reserves.  相似文献   
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