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Ammonium nitrate fuel oil is an explosive mixture found in most antipersonnel landmines (APL) buried throughout the Colombian territory. During more than 50 years of internal conflict, the Colombian government has found that trained dogs are the most effective method to detect APL. However, the olfactive signature in ANFO is unknown and also if there are differences in detection related to the explosive manufacturing origin. Therefore, this work begins with the analytical validation of the method used to determine ammonia, in its derivatized form as carbamate, released by home-made ANFO using HS-SPME-GC-FID. Once validated, the method was used to identify ammonia and other organic volatile compounds present in ANFO, under laboratory and simulated field conditions. The validation process includes the evaluation of the optimum conditions for the derivation and extraction of butylcarbamate, the determination of the working ranges with linear response in FID, the limits of detection and quantification, the sensitivity, and the precision. The results of the validation established linearity and sensitivity in a concentration between 20 and 120 mg/L, as well as low limits of detection and quantification of 6.4 and 21.4 mg/L, respectively. Also, an intermediate precision of 11% for butylcarbamate with a repeatability of 8%. The validated method showed in real samples of home-made ANFO besides ammonia, the presence of low molecular methylamines, and also exhibited differences in volatile compositions according to the origin. The objective of this work is to offer a reliable analytical methodology for the extraction and analysis of volatile compounds from ANFO.  相似文献   
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What holds society together? In his famous essay The Gift (1925) Marcel Mauss answers this question. However, as this paper shows, he does so not by formulating something like a theory of reciprocity as was often assumed after Claude Lévi-Strauss’ brought forward his structuralist interpretation of Mauss. Instead, the reason why gift practices create obligatory, cohesive social bonds lies in experiences of ?being-possessed“ and self-transcendence. This assumption is proven by means of a new and detailed reading of Mauss’ Essai sur le don as well as by the anti-utilitarian reception of Mauss’ work by the Collège de Sociologie (Georges Bataille, Roger Caillois, Michel Leiris). Overall, Mauss’ theory of the gift features important elements of a theory of posession and self-transcendence which focuses on the dimensions of experience and action. This is why one can discern a certain similarity between Mauss’ and the pragmatist theory of action. Only against that backdrop the social binding force of gift practices can be explained.  相似文献   
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The article subjects the research rating of sociology, published in 2008 and carried out by an evaluation group on behalf of the German Science Council, to a secondary analysis. It is shown that the research rating constructs a reality of sociology which does justice neither to the variety of sociological knowledge production nor to its own claim of multidimensionality. Unwillingly, the peer reviewed article has imposed itself as the dominant criterion for assessing the research quality of research units against other types of publication and other activities such as externally funded research, knowledge transfer for practical problem-solving and knowledge diffusion in the public sphere. This preference also affected the assessment of entire research institutions with regard to their impact and efficiency as well as the devaluation of knowledge transfer and diffusion. In this way, sociology is limited to the type of professional sociology, while critical, public and policy-oriented sociology are displaced.  相似文献   
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Emile Durkheim was neither a political scientist nor a political sociologist. His oeuvre though exhibits a political dimension which is not easy to grasp. This article makes the attempt to reconstruct his project of a moral politics of individualism. How is it possible to institutionalize successfully what Durkheim calls moral individualism? Durkheim’s project rests upon two pillars: the scientific and scholarly pillar which aims at the establishment of sociology as a scientific discipline at universities. The political pillar which sets out to analyze the socio-structural, institutional, cultural conditions, forms and effects of individualism and the successful socialization of its values which allows to take seriously the rhetoric of the freedom and dignity of human beings in modernity. Durkheim’s project is confronted with the traditional images of politics and the social order to delineate the differentia specifica of his moral politics of individualism.  相似文献   
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The experience of a major crisis is often expected to lead to policy learning but the empirical evidence about this is limited. The goal of the paper is to explore comparatively whether the crisis of 2008–2010 has led to fiscal policy learning by civil servants in the three Baltic countries. Despite some differences in the crisis experience, the finance ministry officials in all three countries have identified the same lesson from the crisis: fiscal policy should be counter-cyclical and help to stabilize the economy. The paper also discusses how various factors have influenced policy learning, including the acknowledgment of failure, blame shifting, and analytical tractability.  相似文献   
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