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261.
Accidental or deliberate poisoning of food is of great national and international concern. Detecting and identifying potentially toxic agents in food is challenging due to their large chemical diversity and the complexity range of food matrices. A methodology is presented whereby toxic agents are identified and further characterized using a two-step approach. First, generic screening is performed by LC/MS/MS to detect toxins based on a list of selected potential chemical threat agents (CTAs). After identifying the CTAs, a second LC/MS analysis is performed applying accurate mass determination and the generation of an attribution profile. To demonstrate the potential of the methodology, toxins from the mushrooms Amanita phalloides and Amanita virosa were analyzed. These mushrooms are known to produce cyclic peptide toxins, which can be grouped into amatoxins, phallotoxins and virotoxins, where α-amanitin and β-amanitin are regarded as the most potent. To represent a typical complex food sample, mushroom stews containing either A. phalloides or A. virosa were prepared. By combining the screening method with accurate mass analysis, the attribution profile for the identified toxins and related components in each stew was established and used to identify the mushroom species in question. In addition, the analytical data was consistent with the fact that the A. virosa specimens used in this study were of European origin. This adds an important piece of information that enables geographic attribution and strengthens the attribution profile. 相似文献
262.
Dedouit F Piercecchi-Marti MD Leonetti G Rougé D Telmon N 《Forensic science international》2012,214(1-3):e43-e46
A 39-year-old woman was found dead at home. She was single, foreign national, chronic alcoholic, and had given shelter to a compatriot for three days. This man found the deceased in her bed, after a night of heavy drinking. The emergency medical team observed numerous recent blue ecchymoses of the upper limbs. Because of the unclear circumstances, a medicolegal autopsy was ordered by the public prosecutor. Massive hemoperitoneum was diagnosed with no visible internal traumatic injury. Autopsy revealed hepatic and pancreatic abnormalities secondary to chronic alcoholism, which were confirmed by pathological study. The source of the hemoperitoneum was not identified despite careful visceral and vascular examination. The authors concluded that death was secondary to idiopathic spontaneous hemoperitoneum or abdominal apoplexy. The forensic literature on unexpected death due to massive nontraumatic intra-abdominal hemorrhage in association with liver cirrhosis is sparse, with only five cases reported, including the present case. 相似文献
263.
López-Costas O Rissech C Trancho G Turbón D 《Forensic science international》2012,214(1-3):207.e1-207.11
The growth of five variables of the tibia (diaphyseal length, diaphyseal length plus distal epiphysis, condylo-malleolar length, sagittal diameter of the proximal epiphysis, maximum breadth of the distal epiphysis) were analysed using polynomial regression in order to evaluate their significance and capacity for age and sex determination during and after growth. Data were collected from 181 (90♂ and 91♀) individuals ranging from birth to 25 years of age and belonging to three documented collections from Western Europe. Results indicate that all five variables exhibit linear behaviour during growth, which can be expressed by a first-degree polynomial function. Sexual significant differences were observed from age 15 onward in the two epiphysis measurements and condylo-malleolar length, suggesting that these three variables could be useful for sex determination in individuals older than 15 years. Strong correlation coefficients were identified between the five tibial variables and age. These results indicate that any of the studied tibial measurements is likely to serve as a useful source for estimating sub-adult age in both archaeological and forensic samples. 相似文献
264.
Many studies show that democracy promotes freer trade. However, because they typically focus on “at-the-border” barriers such as tariffs, we know little about democracy’s effects on “behind-the-border” barriers such as discrimination in government procurement. We address this question by asking how democracy affects governments’ incentives to discriminate against foreigners when buying goods and services. We argue that “buy national” policies have unclear costs and are harder to attack than policies that visibly interfere with consumers’ ability to buy foreign goods. This makes such provisions more attractive than tariffs to democratic leaders seeking reelection. We thus hypothesize that democracy leads to lower tariffs but to greater discrimination in public procurement. We support this hypothesis with an analysis of procurement and imports in 138 countries from 1990 to 2008. Our results imply that a full understanding of the democracy–trade policy relationship requires attention to increasingly prominent behind-the-border barriers to trade. 相似文献
265.
Daniel Agbiboa 《Development in Practice》2014,24(3):390-404
Nigeria's abundant natural resource endowments should earn the country's bragging rights as the “Giant of Africa”. Instead, 52 years of corrupt practices among the often recycled ruling elites in post-independence Nigeria have crippled this giant and turned what should be one of the country's strongest assets – its vast oil wealth – into a curse. This article critically examines the concerns for corruption as an enduring obstacle to Nigeria's development writ large. After providing a historical trajectory of corrupt practices in Nigeria from the mid-1980s to the present, it discusses some of the recent corruption scandals in the country, in particular the issues surrounding the US$6.8 billion that was drained from Nigeria between 2009 and 2012 in the fuel subsidy scam. The conclusion makes a case for the reworking of a pervasive system in Nigeria that “pardons” corruption and “recycles” corrupt rulers. 相似文献
266.
This paper analyses practices for monitoring, tracking and assessing the international aid and reconstruction efforts in Haiti in an attempt to ‘build back better’ from the devastation of the January 2010 earthquake. We suggest that aid and reconstruction efforts filter through an international network of development organisations. This network also acts as a governing auspice, overseeing the transformation of Haiti from a ‘failed state’ to a strong democratic state. The central governing mechanism in this reconstruction effort involves the embedding of the ideas and practices of audit within Haitian political and civic culture. We reveal how, in Haiti, this culture of audit monitors aid and reconstruction through biopolitical technologies such as benchmarks and performance indicators, and through the constitution of calculable and accountable entities. More than a means of implementing disaster recovery, audit culture is a technique of biopolitical governance that aims to transform Haiti's state, civic institutions and citizens into entities accountable to an international development agenda. 相似文献
267.
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269.
This article examines the relationship between mental disorder and criminality in Canada from the colonial period to the landmark 1992 Mental Disorder Amendments that followed the passing of Bill C-30. The history of this relationship has been shaped by longstanding formal and informal systems of social regulation, by the contests of federal–provincial jurisdiction, by changing trends in the legal and psychiatric professions, and by amendments to the federal Criminal Code. A study of these longer-term features demonstrates that there has been no linear path of progress in Canada's response to mentally unwell offenders. Those caught in the web of crime and mental disorder have been cast and recast over the past 150 years by the changing dynamics of criminal law, psychiatry, and politics. A long historical perspective suggests how earlier and more contemporary struggles over mental disorder and criminality are connected, how these struggles are bound by historical circumstance, and how a few relatively progressive historical moments emerging from these struggles might be recovered, and theorized to advantage. 相似文献
270.
The COVID-19 pandemic dramatically changed employment across sectors in 2020. This Viewpoint essay examines public sector labor relations during the pandemic and describes the impact bargaining process that is used to protect public employees. The authors draw on their own experience with impact bargaining negotiations and the public labor relations, conflict management, and civil service reform literatures to develop recommendations for public union labor leaders during times of crisis. They suggest that public unions have an important role in crisis management but must act strategically to develop good working relationships with leadership and successfully negotiate employee protections in uncertain times. 相似文献