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151.
Good gas chromatography (GC) separation of molecules is essential for clean gas chromatography/mass spectrometry (GC/MS) confirmation of compounds. The trifluoro derivatives of ephedrine (E) and methamphetamine (MA) coelute on dimethyl silicone capillary columns, such as DB-1, which are most commonly used by chromatographers. Methods are described to separate E and MA to aid GC/MS confirmations of methamphetamine, ephedrine, or both E and MA together, whichever may be present in Enzyme Immunoassay (EIA)-analyzed amphetamine-positive urine samples. The use of the heptafluoro derivatives of E and MA on a DB-1 column, or the trifluoro derivatives of E and MA on a DB-17 column, is suggested for good gas chromatographic separation. 相似文献
152.
Some defendants desire to be punished. Sometimes psychotic motivations underlie punishment-seeking behavior; sometimes they do not. The defendant's clinical status is relevant to his competency to stand trial and to waive other rights. These issues are illustrated by presentation of a case of a defendant who sought punishment. The importance of psychiatric assessments of these defendants is emphasized. 相似文献
153.
Postmortem changes in sulfide concentrations in body tissues were examined in autopsied rats exposed to hydrogen sulfide concentrations of 550 to 650 ppm, and in nonexposed rats and humans. Analyses were made by gas chromatography, following an extractive alkylation. Sulfide concentrations in the blood, liver, and kidneys of rats increased in both the exposed and nonexposed groups, depending on the lapse of time after death. On the other hand, the lung, brain, and muscle showed little or no change in sulfide concentration with elapse of time after death. The data obtained from human tissues were almost the same as those for rats, except data for blood, in which no or little increase of sulfide was observed. 相似文献
154.
Joshua K. Leon 《Third world quarterly》2015,36(2):257-273
Key trends link a globally connected urban archipelago and its hinterlands, warranting new studies of power in its most contemporary forms. This article locates land power and where that power is exercised – looking at the burgeoning global land rush from the perspective of cities. Urbanisation continues to drive vast political transitions, uprooting longstanding agrarian modes of living while creating myriad inequalities within cities. Are the world’s most powerful agglomerations active agents in this transformation? Answering affirmatively, the article reframes urbanisation as a vast, global geopolitical transfer of power from rural to urban. Leading global cities like New York, London, Hong Kong, Chicago and Singapore are not merely impressive collections of factor endowments. They are also sites of concentrated power with coercive influences beyond municipal boundaries. The article asks how cities project power in the contemporary global system. Juxtaposing data on global connectivity with the location strategies of private firms, we learn that the world’s most successful global cities are also sources of exploitative accumulations of land. 相似文献
155.
Why do elections held in the shadow of civil wars sometimes generate more violence in already war-torn societies, while in other circumstances they do not? This article develops a conceptual framework based on three clusters of factors to analyse the conflict-generating aspects of elections in war-torn societies: the key actors in the electoral processes; the institutions of elections; and the stakes of the elections. Two types of war-related elections are distinguished: elections held during an ongoing civil war, and elections held in the post-war period when peace is to be implemented. While different in many respects, the two contexts share critical characteristics through their association with the legacy of warfare. Several important implications emerge from the analysis. First, relating to militant and violent actors, incentive structures need to be altered by addressing both the opportunities and means of violence. Second, to prevent inducements for violent behaviour, institutional arrangements – including electoral commissions – have to be crafted with consideration given to local conflict dynamics and the history of violent conflict. Finally, the stakes of elections in war-shattered societies can be reduced through, for instance, constitutional pact-making and the oversight of external actors in electoral processes. 相似文献
156.
Kathrin Braun Alfred Moore Svea Luise Herrmann Sabine Könninger 《Economy and Society》2013,42(4):510-533
Abstract The article examines the emergence of governmental bioethics in Great Britain, France and Germany, i.e. bodies, discourses and procedures meant to guide policy-making in terms of ethical considerations. It argues that governmental bioethics, marked by openness, transparency and participation, can be understood as a form of reflexive government in the realm of science governance. It grew out of the problematization of older forms of science governance based on ideas of effectiveness, scientific expertise and system stability, and operates through structuring and managing proper talk rather than intervening in processes of techno-scientific development. Yet, rather than challenging the commitment to techno-scientific ‘progress’, it stabilizes it through mechanisms of inclusion, involvement and mobilization: within the framework of proper ethical talk, participation can be employed to pursue rather than oppose system stability. 相似文献
157.
Marlene K. Sokolon 《New Political Science》2013,35(1):49-66
Since protest poetry is considered a voice on behalf of victims of war and the oppressed, an epic poem such as the Iliad, which appears to celebrate a culture of male violence, is an unlikely example of protest poetry. This epic story of Achilles, however, brings to the forefront several themes of protest poetry: challenge to authority, anger at injustice, and confrontation with the fragility of the human condition. Even the form of epic as a product of oral culture reflects traditional protest song. Specifically, this article argues that revisiting the themes of protest in the Iliad provides insights into why human beings protest, connects political poetry to philosophic questions, and highlights the human being as a perennial protester who must face the inevitable choice of safety or perilous political action. 相似文献
158.
Matthew G. Devost Brian K. Houghton Neal Allen Pollard 《Terrorism and Political Violence》2013,25(1):95-97
Research on the motives of those who engage in small group political violence typically takes a qualitative or quantitative form. I argue that researchers should seek to understand why people engage in small group political violence, and that the best way to achieve such understanding is to employ both. The advantages of this approach are discussed in this paper, as is the importance of recognizing that the activities of all actors in any given violent location, including state actors, should be accounted for in research. 相似文献
159.
Laura K. Landolt 《Democratization》2013,20(4):706-722
Critics of US democracy-promotion strategies of the last 20 years ask: what kind of democracy is promoted by US public agencies and associated nongovernmental organizations (NGOs), how is it promoted, and for what purpose(s)? This paper draws on interviews with NGO, USAID, and UN representatives, gathered in Egypt in 2001, to describe the fate of Egyptian women's advocacy NGOs seeking to implement the pro-democracy platform of action of the 1994 UN International Conference on Population and Development (ICPD). It offers some support for critics' contentions both that external (here USAID) pro-democracy interventions may actually obstruct democratization, and that the instrumental nature of US democracy promotion may mean that such activities are quickly eliminated or downgraded when they conflict with more primary US policy goals. 相似文献
160.
Innovations in information and communication technologies have allowed people to actively author multimodal content and engage in new meaning-making practices. New Literacies research has gone some way to understanding new meaning-making behaviours. However, this research often derives its understandings from studies undertaken with students enrolled in formal educational settings. Mobile technologies are increasingly situated outside such domains; the informal use of these devices by adults remains on the periphery of scholarly focus. mStories is a creative participatory digital mobile storytelling project. Taking a multidimensional perspective, this article presents the in-depth case analysis of one participant and their mStory. A semiotic analysis found that the user-generated content demonstrated complex and sophisticated multimodal sense relations. However, control over the textual or compositional meta-function of the text was determined largely by the computer interface, with users habituated to relinquishing authorial control over this element. Within this study, mobile literacy praxis was characteristically ad hoc and contextually embedded, and though mobile technology invites such practices, users were neither determined nor limited by this, and happily turned to other devices where necessary. 相似文献