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Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

A neutron activation analysis procedure for the simultaneous determination of Au, Pd and Ir, and separate determination of Os is described and applied to the determination of these metals in the Mount Albert ultramafic pluton, Quebec. The Mount Albert is an alpine-type ultramafic body whose petrography, geology and geochemistry has been discussed in some detail by MacGregor (1962, 1964). It consists mainly of serpentinized dunite and peridotite. However, it is distinguished by the presence of an eastern lobe which is essentially unserpentinized. In addition to ferromagnesians, two varieties of spinel including disseminated accessory chrome spinel and massive, discordant chromite veins or schlieren are important mineralogical constituents. Twenty samples were analyzed including 5 fresh dunites and peridotites, 8 serpentinized equivalents, 4 disseminated chrome spinels, 1 clinopyroxenite, and 2 massive chromite. The concentrations (in p. p. b.) of average fresh ultramafics and their serpentinized equivalents are:-------------------------------------- ---------------------Pd----Os----Ir----Au------------------------------------------- Fresh rocks------------7.7----7.2--2.5--0.99------------------------------------------- Serpentinized rocks---10----6.6--2.2---2.4-------------------------------------------- The piuton was intruded as a nearly solid mass of olivine and some orthopyroxene with about 15 weight per cent melt. A small concentration of the precious metals, a factor of 2 to 3, in the melt relative to crystalline phases appears to have occurred. The disseminated chrome spinel and massive chromite appear to concentrate the precious metals. In particular, Os and Ir content of the massive chromite is approximately 10 times that of fresh or serpentinized whole rocks. There is little change in average precious metal content with serpentinization. Pd shows a slight increase, and Ir and Os slight decreases in concentration with degree of serpentinization. Only Au appears significant to be enriched in serpentinized rocks where a twofold increase occurs. The variation in precious metal content of all four metals increase when the rocks are serpentinized: When normalized to chondrite meteorites, the precious metal data give fractionation trends similar to that of average chondrite. These trends are compatible with a model in which alpine ultramafics are regarded as residua from the partial melting of parental material of approximately chondritic composition. / Thesis / Master of Science (MSc)

Tableau d'honneur de la Faculté des études supérieures et postdoctorales, 2011-2012 / La partie création consiste en un recueil d'une trentaine de courts essais ayant paru d'octobre 2008 à avril 2011 sous forme de chroniques dans la rubrique Renauderies du journal Droit de Parole, journal mensuel communautaire des groupes populaires distribué au centre-ville de Québec en 15 000 exemplaires. La partie réflexion se penche sur une forme de chronique de facture intimiste entrevue par Vincent Charles Lambert et s'avérant particulièrement populaire au début du XXe siècle au Québec dans les grands journaux de masse, le « billet ». L'étude de ces billets vise à mieux évaluer, sur le plan littéraire, les possibilités qu'implique la diffusion d'une écriture autonome en regard de l'actualité, à l'intérieur d'un journal se voulant essentiellement informatif. La participation du poète « intimiste » Albert Lozeau au journal Le Devoir entre 1910 et 1924 offre un excellent exemple de la créativité que peut susciter l'écriture du « billet » et c'est pourquoi le présent mémoire lui consacre une place privilégiée. Un carnet de création vient clore le mémoire et permet de préciser en quoi l'étude des « billettistes » est venue alimenter la réflexion sur l'écriture des Renauderies. Il fait le lien entre les deux parties du mémoire et raconte l'expérience de l'auteur dans le contexte médiatique concret.

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No description available.

In the decades around 1900, political and social cartoons flourished in humour and satire magazines in the Swedish capital. The thesis presents a new theoretical start on the nature of humour in cartoons: the idea of the comical is argued as effects of reality notions and bracketing reality notions. The theory is a prerequisite for understanding the mechanisms of the identity play performed in the comic scenes. The thesis pursues a search for the object or the character with whom the intended recipient was expected to identify, referred to as the “the main character”. The analysis is based on a kind of theatrical construction, where the real city, its pleasures, secrets and dangers constitute the material for the image’s scenes. The characters in the scenes act out the dangers and ambiguities that the city’s bourgeois man faced. The material of the study consists of social cartoons from the two Stockholm-based magazines Söndags-Nisse and Kasper between 1870 and 1900. About a hundred of them are reproduced in the thesis.  The analysis builds on three theoretical perspectives: theories on images; humour; and identity constructions. By integrating theories on humour with image analysis, the thesis highlights the ambivalence and ambiguity of identity aspects. Relationships and characters explored through the image elements are given as headlines for the chapters: the room; the body; and the act. The study shows how a male and bourgeois hegemony invents image expressions, main characters, and plots that offer the recipient protection against being laughed at and against the danger of mistakes. The analysis shows that four strategies to represent the bourgeois man are frequent: as the “fuzzy man”; as the caricature of the bourgeois man; as the stereotype; and as the “unfettered man”. The various figures offer more or less possibilities of identification versus distancing. The pictures’ expressions of uncertainties – in terms of vague or fuzzy lines; self-irony; or avoiding being singled out – all these means provide distance, in relation to the picture content, the issues that concerned the intended recipient, whether it is about the difficulty of distinguishing the public body from the forbidden, or about general human conditions.

Approved for public release; distribution is unlimited / The US Department of Defense is currently pursuing the most comprehensive transformation of its forces since the early years of WWII. This transformation is a holistic approach to update both the equipment that the forces will fight its conflicts with and the way in which they will fight. This transformation relies heavily on fully networked air, ground and space based platforms. While many experts agree that in the course of the next 10 years communications equipment will emerge to support the networking of these systems, there remains much uncertainty on how operations will be effected if the technology does not mature enough to meet expectations. This research shows that even a 25 percent degradation in communications range could pose significant challenges for this Future Force. Additionally, even small delays (latencies greater than one minute) and constraints on network throughput can increase the Future Force casualties and the duration of battle. While the end result in all analysis shows that the Future Force is a superior element with the same battle end state-victory, the cost of that victory depends significantly on effective communications. / Captain, United States Army

Approved for public release, distribution is unlimited / Recent insurgent tactics during Operation Iraqi Freedom (OIF) have demonstrated that coalition logistical convoys are vulnerable targets. This thesis examines the tactics, techniques and procedures (TTPs) used in convoy operations in an attempt to identify the critical factors that lead to mission success. A ground convoy operation scenario is created in the agentbased model (ABM) Map Aware Non-uniform Automata (MANA). The scenario models a generic logistical convoy consisting of security vehicles, logistical vehicles, an unmanned aerial vehicle (UAV) and an enemy ambushing force. The convoy travels along a main supply route (MSR) where it is ambushed by a small insurgent force. We use military experience, judgment and exploratory simulation runs to identify 11 critical factors within the created scenario. The data farming process and Latin Hypercube (LHC) experimental design technique are used to thoroughly examine the 11 factors. Using the 11 factors 516 design points are created and data farmed over to produce 25,800 observations. Additive multiple linear regression is used to fit a model to the 25,800 observations. From the created scenario it is concluded that: convoy mission success may be determined by only a few factors; the actions of logistical vehicles are more critical than those of security vehicles; UAVs provide a statistically significant advantage; and ABMs coupled with LHCs and data farming are valuable tools for understanding complex problems. / Captain, United States Marine Corps

Alors que la Première Guerre mondiale fait encore rage, le banquier et philanthrope Albert Kahn, crée, en 1916, le Comité national d’études sociales et politiques (CNESP). Composé d’intellectuels français, le CNESP se réunit une fois par semaine, et ce, jusqu’en 1931, afin de discuter des plus chauds sujets de l’heure. Résolument tourné vers l’international, ce comité, bien que les membres soient exclusivement Français, reçoit un nombre important de conférenciers étrangers et s’intéresse grandement à ce qui se passe à l’extérieur des frontières de la France. Ce mémoire, qui s’inscrit dans les courants de l’histoire internationale et l’histoire intellectuelle, met l’accent sur cet intérêt pour les sujets internationaux et étudie la conception que se fait le CNESP de l’internationalisme durant la période de l’entre-deux-guerres. L’analyse des procès-verbaux des rencontres révèle que le comité a une vision de l’international qui s’exprime sur deux niveaux. D’abord, il entrevoit l’international comme quelque chose d’objectif : le système international doit être organisé selon les principes de paix par le droit et les problèmes à caractère global doivent être solutionnés selon les méthodes objectives de la science. Ensuite, l’étude des considérations subjectives derrière de telles prétentions d’objectivité dévoile une conception de l’international qui est influencée par une forte croyance en l’universalisme des valeurs françaises. La conception de l’international génère donc une dynamique d’exclusion qui s’exprime plus particulièrement à travers un langage métaphorique lié à la famille. / During the heat of the Great War, Albert Kahn, banker and philanthropist, founded the Comité national d’études sociales et politiques (CNESP). Bringing together members of the French elite, the CNESP held meetings every week until 1931, to hold intellectual discussions about current affairs. Even though the members were exclusively French, the committee invited a considerable number of international speakers. This thesis, whose fields of research are linked to those of intellectual history and international history, places emphasis on this committee’s interest in international topics and studies its conceptualization of internationalism during the interwar period. This survey of the CNESP’s meetings reveals that the committee had a vision of internationalism that was expressed on two different levels. First, the committee understood the international as an objective structure: the international system had to be organized around principles of law and international problems had to be resolved by the objective methods of science. Second, study of the subjective considerations behind those pretentions of objectivity reveals that the conceptualisation of internationalism was influenced by a strong belief in the universalism of French values. This conceptualisation of internationalism therefore implies dynamics of exclusion that are expressed more particularly through a metaphoric discourse linked to the family.