Dissertations / Theses on the topic 'Michael Scot'

Les mastics polysulfures sont très utilisés dans l'aéronautique, ceci grâce à leur bonne tenue au froid et leur résistance au carburant. La plupart d'entre eux sont des bicomposants (un polymère polysulfure et un durcisseur avec éventuellement un catalyseur dans l'un des composants). Les formulations de mastic, réticulé au MnO2, permettent d'avoir des temps de gel de 2 jours, avec une réticulation complète au bout de 70 jours. Cependant, ce temps de gel long induit un temps de réticulation trop long. Ainsi, l'objectif de cette thèse était de créer un nouveau type de mastic, qui serait idéalement monocomposant avec un temps de gel toujours long, voir infini et qui réagirait sur demande après stimulus avec un temps de réticulation court. C'est ce qui est appelé le concept SCOD (sealant cure on demand). Pour cela, il faut bloquer un des trois réactifs, et que celui-ci soit déblocable sur demande à l'aide d'un stimulus simple industriellement tel que la température (cible entre 60-80°C). Le concept de blocage choisi est la réaction de Diels-Alder sur des composés accepteurs de Michaël. En effet, cette réaction est réversible et la cycloréversion permet la déprotection de la double liaison réactive. Après déblocage, l'accepteur de Michaël peut réagir avec le polysulfure. Une première étude, sur les accepteurs de Michaël, a permis de déterminer que les fonctions maléimides, en présence de DABCO, donnent les meilleures cinétiques pour la réaction avec les thiols du polysulfure. Une deuxième étude, sur la réaction de Diels-Alder et rétroDiels-Alder, a prouvé la faisabilité du projet et a permis de sélectionner les dérivés du furane comme agents bloquants pour répondre à la fourchette de température imposée. Ensuite, des durcisseurs polymaléimides aliphatiques ont été synthétisés à l'aide des Jeffamines® d'Huntsman et bloqués avec le furfuryl acétate, afin d'être utilisés pour la création de matériaux suivant le concept SCOD. Le temps de gel obtenu avec les durcisseurs bloqués, était de 7 jours et un matériau était obtenu après 17 heures de chauffe. Le concept SCOD a donc été démontré. Cette étude a, ensuite, été extrapolée au Centre de Recherche d'Hutchinson en formulation modèle sur de plus grandes quantités. Aussi, les propriétés des mastics obtenus ont été déterminées et répondaient à une majorité des critères du cahier des charges.. Le déblocage a été amélioré après ajout d'un thiol tétrafonctionnel (PETMA, co-agent) et l'utilisation d'un autre catalyseur (DBU), Le temps de déblocage étant encore trop long et le bloquant, relargué dans la formulation, forme des porosités dans le mastic et dégrade, de fait, les propriétés de celui-ci. Ainsi une dernière partie d'amélioration a été effectuée. En effet, dans celle-ci, une nouvelle génération de durcisseur, cette fois-ci aromatique, et d'agent bloquant, jouant le rôle de plastifiant non volatil, a été créée et testée en laboratoire. Ceux-ci ont présenté de très bons résultats préliminaires avec des temps de déprotection plus courts et des bloquants moins volatils à la température de déblocage comparé au furfuryl acétate. L'extrapolation doit se poursuivre fin 2014-début 2015 sur ces nouveaux durcisseurs en formulation mastic modèle
Polysulfide sealants are widely used in aviation because of their good resistance to low temperature and to fuels. Most of them are bycomponent (a polysulfide polymer and a crosslinking agent and, eventually a curing catalyst in one of them). These sealant formulations, crosslinked with MnO2, have a gel time of two days, with a full curing after 70 days. However, because of this short gel time, the curing time is too long. Thus, the objective of this thesis was to create a new type of sealant, monocomponent, with still a long gel time, ideally infinite, that could react on demand after stimulus, in order to have a short curing time. This concept is called SCOD concept (sealant cure on demand). These criteria require to block one of the three products, and this one should be unblocked on demand using an ease stimulus such as temperature. The system chosen as blocking principle is the Diels-Alder reaction of a Michaël acceptor. Indeed, this reaction is reversible and the cycloreversion allows to unprotect the reactive double bond. After the unblocking reaction, the Michaël acceptor may react with the polysulfide. A primary study, on Michael acceptors, allowed to determine that maleimide function, in the presence of triethylamine, gives the best kinetics for reaction with polysulfide's thiol. A second study, this time on the Diels-Alder and retroDiels-Alder reaction, proved the feasibility of the project and allowed to select furan derivatives as blocking agents. Then, aliphatic polymaleimides hardeners were synthesized using Huntsman's Jeffamine and were blocked with the acetate furfuryl, so as to be used for creating SCOD materials. The gel time obtained with blocked hardener was 7 days at room temperature and after heating for 17 hours, a material was obtained; the SCOD concept has been demonstrated. The study was, then, extrapolated to Hutchinson's research and development department on bigger quantities to do some basic formulation. In addition, the sealant's characteristics have been determined and have shown very interesting results. Unblocking time was improved after adding tetrafunctional thiols (co-agent) and one another catalyst (DBU). The unblocking time was too long and the blocking agent, once released into the formulation, formed porosities into the sealant and, because of it, damaged the properties of the sealant. A latter part was done to improve the SCOD concept. Two new generations of hardener, aromatic this time, and blocking agent, acting as a non-volatile plasticizer, were created and tested in laboratory. These have presented very good preliminary results. Indeed, the unblocking time is much shorter and the unblocking agent is less volatile at high temperature compare to acetate furfuryl. The scaling up to pilot level is under way (end of 2014)

Le traité de la Disputatio Scoti est un exemple supplémentaire d'alchimie savante proche de la scolastique. Afin de mieux comprendre ce texte, il était nécessaire de considérer la place de l'alchimie dans la société médiévale occidentale et de donner une vue d'ensemble cohérente et détaillée de la question (les travaux existant sur ce thème sont bien souvent synthétiques et manquent d'unité). Mon étude est donc tout d'abord consacrée aux relations de l'alchimie avec la scolastique et traite plus largement des opinions sur cet art exprimées par les savants et les philosophes. Tout en présentant les contextes historiques et économiques durant lesquels se posent les questions de la fabrication de l'or artificiel et d'un élixir de longue vie, je décris ensuite les rapports connus entretenus par les princes laïques et ecclésiastiques avec l'alchimie. Une troisième partie traite de la Disputatio faussement imputée à Michel Scot, en propose un commentaire et une édition critique
The treatise of Disputatio Scoti is an additional example of an erudite alchemy in close conformity with the Scholastic philosophy. To better understand this text, we must examine the standing of alchemy within Western medieval society and present a coherent and detailed overview of this issue (existing works on this theme are often too synthetic or inconsistent). My study therefore focuses on the links between alchemy and the Scholastic philosophy as viewed by scholars and philosophers. After presenting the historical and economic context in which the questions for producing gold artificially and discovering a long-life elixir arose, I highlight the known connections between the lay and ecclesiastic princes and alchemy. The third part of my thesis deals with a comment and a critical edition of the Disputatio, wrongly ascribed to Michel Scot

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Bachelors
Arts and Humanities
Humanities

This dissertation puts into historical context allegations of farm labour abuse during the period 1948 to 1960 on the eastern Transvaal Highveld. It not only gives an exposition of these events, but importantly analyses these allegations of abuse in the context of the South African government’s intervention into farm labour for this period. The dissertation, however, first gives an overview of the government’s policies of regulating and providing farmers with black labour in the period 1910 to 1948. It deals specifically with the dubious measures introduced and coercive actions taken by the National Party government after 1948 to provide farmers with “cheap and plentiful labour”. The reactions to the accusations of abuse by the South African government, the farmers, the conservative, liberal and leftist press, and other independent bodies, such as the churches, Black Sash and the South African Institute of Race Relations, are also explored. The reaction of the African National Congress and the Potato Boycott launched in 1959 by this organisation in response to the mistreatment of farm labourers, also receives specific attention. It concludes with a discussion of how the farm labour scandals and the reaction during the 1950s and more specifically the Potato Boycott of 1959 are still relevant today by considering the contested nature of the commemoration of this event in 2009 AFRIKAANS : Hierdie verhandeling plaas bewerings van die misbruik van plaasarbeid gedurende die periode 1948 tot 1960 op die oostelike Transvaalse Hoëveld in historiese konteks. Dit bied nie net ‘n uiteensetting van hierdie gebeure nie, maar ontleed dié bewerings van mishandeling teen die agtergrond van die Suid-Afrikaanse regering se ingryping ten opsigte van plaasarbeid vir dié tydperk. Die verhandeling bied ten eerste ‘n oorsig van die regering se beleid van die regulering en voorsiening van swart arbeid aan boere gedurende die periode 1910 tot 1948. Dit handel spesifiek oor die twyfelagtige dwangmaatreëls wat deur die Nasionale Partyregering na 1948 geïmplementeer is om boere van “goedkoop en voldoende arbeid” te voorsien. Die reaksies op die bewerings van mishandeling deur die Suid-Afrikaanse regering, die boere, die konserwatiewe, liberale en linkse pers, as ook ander selfstandige instansies, soos die kerke, Black Sash en die Suid-Afrikaanse Instituut van Rasseverhoudinge word ook ondersoek. Die reaksie van die African National Congress en die aartappelboikot wat deur die organisasie in 1959 van stapel gestuur is in reaksie op die mishandeling van plaaswerkers, work ook ontleed. Die studie sluit af met ‘n bespreking van hoe die plaasarbeidskandale, die reaksie in die 1950s en meer spesifiek die aartappelboikot van 1959, steeds vandag relevant is teen die agtergrond van die omstrede herdenking van die gebeurtenis in 2009.
Dissertation (MHCS)--University of Pretoria, 2011.
Historical and Heritage Studies
unrestricted

La thèse est consacrée à la vie intellectuelle à la cour de Frédéric II, empereur germanique et roi de Sicile dans la première moitié du XIIIème siècle. Elle traite en grande partie les manuscrits scientifiques inédits liés à ce milieu, aujourd'hui conservés dans une dizaine de bibliothèques européennes : l'Introduction de Michel Scot, grand traité d'astrologie et de cosmologie, Les bains de Pouzzoles de Pierre d'Eboli, un poème didactique sur les eaux curatives de l'Italie du Sud, le Livre d'astrologie de Zotorus etc. Dans l'annexe est proposée une édition de ces documents. Méthodologiquement le travail se situe entre l'histoire des sciences et l'histoire de l'art, car, d'un côté, la grande partie des documents en disposition est illustrée, de l'autre, les élites intellectuelles autour de Frédéric II ont accompagné leurs recherches dans le domaine des sciences de la nature par une forte activité artistique strictement dite
The PhD is concerned with the intellectual life at the court of Frederick II, emperor and king of Sicily. A big part of it is dedicated to inedited works linked to this cultural milieu, important for the history of sciences and letters of the thirteenth century Europe : Michael Scot's Liber introductorius, a huge astrological and cosmological summa (1230 ca. ), Peter of Eboli's poem "Baths of Pozzuoli", an illustrated Liber astrologiae by Zotorus etc. In the Annexes, an edition of these treatises is proposed. The combination of methods of the history of art and of the history of science has been imposed by the subject itself ; the scientific lore at the Frederick's court, with its research for new approaches to the empirical reality, is parallel to reach artistic activity, with its strong predilection for naturalistic forms

Over the course of the last few years, a new movement has taken the American political system by storm, the Tea Party. The movement has not only captivated our media but also the minds of ordinary Americans and political elites. According to popular consensus and academic opinion, the Tea Party is comprised of a group of conservative-leaning Republicans who want a smaller government and a lesser tax burden. This is what we think of the Tea Party, but is it true? It is perceived that Tea Party members differ significantly from their Republican colleagues in the House of Representatives, but do they? Do they truly represent the Tea Party philosophy and agenda? By creating an original data set on the Republican members of the United States House of Representatives, and examining variables such as the political lean, economic and employment make-up of a member's district, their endorsements and incumbency, as well as high priority legislative votes from the 112th Congress, I will be able to investigate the characteristics and tendencies of Tea Party Caucus members. Once one looks at the 242 member House Republican Caucus and further examines the sixty members of the Tea Party Caucus, the data shows that Tea Party Caucus members largely originate from safe Republican districts and have served in previous congressional terms. Analysis shows that Tea Party Caucus members do vary significantly from their House Republican colleagues when examining their districts, but do not vary as considerably when examining their voting patterns.
B.A.
Bachelors
Sciences
Political Science

This thesis addresses critical conceptions of Scottish literary development in the twentieth-century which inscribe realism as both the authenticating tradition and necessary telos of modern Scottish writing. To this end I identify and explore a Scottish ‘counter-tradition’ of modern uncanny fiction. Drawing critical attention to techniques of modal disruption in the works of a number of post-1970s Scottish writers gives cause to reconsider that realist teleology while positing a range of other continuities and tensions across modern Scottish literary history. The thesis initially defines the critical context for the project, considering how realism has come to be regarded as a medium of national literary representation. I go on to explore techniques of modal disruption and uncanny in texts by five Scottish writers, contesting ways in which habitual recourse to the realist tradition has obscured important aspects of their work. Chapter One investigates Ali Smith’s reimagining of ‘the uncanny guest’. While this trope has been employed by earlier Scottish writers, Smith redesigns it as part of a wider interrogation of the hyperreal twenty-first-century. Chapter Two considers two texts by James Robertson, each of which, I argue, invokes uncanny techniques familiar to readers of James Hogg and Robert Louis Stevenson in a way intended specifically to suggest concepts of national continuity and literary inheritance. Chapter Three argues that James Kelman’s political stance necessitates modal disruption as a means of relating intimate individual experience. Re-envisaging Kelman as a writer of the uncanny makes his central assimilation into the teleology of Scottish realism untenable, complicating the way his work has been positioned in the Scottish canon. Chapter Four analyses A.L. Kennedy’s So I Am Glad, delineating a similarity in the processes of repetition which result in both uncanny effects and the phenomenon of tradition, leading to Kennedy’s identification of an uncanny dimension in the concept of national tradition itself. Chapter Five considers the work of Alan Warner, in which the uncanny appears as an unsettling sense of significance embedded within the banal everyday, reflecting an existentialism which reaches beyond the national. In this way, I argue that habitual recourse to an inscribed realist tradition tends to obscure the range, complexity and instability of the realist techniques employed by the writers at issue, demonstrating how national continuities can be productively accommodated within wider, pluralistic analytical approaches.

Michael Scot remains an under-studied figure of the early thirteenth century, in particular with regard to his main original work, the Liber introductorius. This work has never been comprehensively edited, although several partial editions do exist. Scot's translations have received scholarly attention and their importance has been recognized, however, his original work has received a fairly negative assessment from scholars. A close look at one section of the Liber introductorius (Liber quattuor distinctionum, third distinction, CLM fols. 118rb-120ra), although it does conform to what scholars have found in other sections of Scot's work, offers another avenue of study; namely, the social historical aspects of astrology and astrologers in the early thirteenth century. Through his practical instructions to fledgling astrologers in matters such as their house, comportment, and dealings with customers, Scot provides us with a window into the social world of the astrologers of his time.

Tese de mestrado, Arte e Multiméia - Audiovisuais, Universidade de Lisboa, Faculdade de Belas Artes, 2012
This work concludes a proof in a Master degree on Multimedia Art in the audio visual field. The idea of memory, with the possibility of its immateriality and dissolution, and reminiscence are the subject matter of this project. Human memory, to which attention is devoted here for its decisive importance to the gathering of knowledge, is the ability to store information. Immaterial, it has the quality of that which is intangible, without substance, possibly spiritual or supernatural; frail and perishable, from it, records are created which seek to ensure their conservation. Often, through wear and transformation by imagination, the memory, in its immateriality, undergoes a process of dissolution. Reminiscence stems from a vague, not very consistent memory, it is but a process that enables the reconstitution of an idea, by differentiation, selection and recovery of memories. This seemingly simple and familiar theme, proved more complex throughout this project’s process of reflection and creation, requiring a vast and profound research. Several different approaches and artistic works were observed and analysed: from Anton Giulio Bragaglia (1890-1960), from José Luís Neto (1966-), from Alain Resnais (1922-), from Michel Gondry (1963-), from Christopher Nolan (1970-), from Ridley Scott (1937-) and from David Clearbout (1969-), on which memory is also addressed (albeit subtly) as something elusive and difficult to fix. The created installation consists in a set of projections comprised by two overlaid videos on the same, discontinuous translucent surface, which can be observed from several different angles. In it the two different facets of this project are synthetized, theory and practice. It aims to trigger a process of reminiscence by establishing a relationship between the observation of images and visual memories

Cette thèse porte sur le fonctionnement du discours urbanistique à Montréal durant les Trente Glorieuses. Contre l’interprétation dominante selon laquelle l’urbanisme des Trente Glorieuses serait démesurément technophile et confisquerait le pouvoir de parler de la ville, nous montrons qu’en dramatisant la décomposition de l’objet urbain et en faisant de la définition même de la ville un problème, l’urbanisme crée un espace discursif ouvert dans lequel la technique se présente à la fois comme un problème et une solution. Dans un premier temps, nous analysons la prégnance de la critique de l’urbanisme technocratique (dont l’expression typique se trouve chez Jane Jacobs) dans la théorie politique contemporaine, au moyen d’une analyse du livre à succès Seeing Like a State de James C. Scott. Nous montrons que cette critique repose sur une hypothèse du surplomb dont le fonctionnement est analogue à ce que Michel Foucault appelle « l’hypothèse répressive ». Nous expliquons son succès en montrant qu’elle correspond à la vision dominante de la critique comme procès de la raison. Rejetant la réception qui en a été faite par les anti-planificateurs, nous montrons enfin que l’on retrouve dans la méthode archéologique de Foucault des éléments pour une analyse de l’urbanisme qui ne soit pas uniquement centrée sur les tares de l’idéologie moderniste et la croissance démesurée du pouvoir technocratique. Dans un deuxième temps, nous forgeons une hypothèse quant à la structure du discours urbanistique au moyen d’une relecture d’Emmanuel Kant, Reinhart Koselleck et Hans Jonas. Plutôt que d’assimiler l’urbanisme à une forme démesurée (hubris) du rationalisme, il s’agit d’y trouver une réflexion particulièrement sophistiquée sur les limites du pouvoir de connaître, dont l’analytique de la finitude kantienne est la forme paradigmatique. Nous utilisons ensuite l’histoire des concepts de Koselleck pour éclairer le fonctionnement et les effets intradiscursifs de la remise en question du concept traditionnel de ville à laquelle procède l’urbanisme. Enfin, l’éthique de la technique de Jonas nous permet de montrer que la planification moderne s’appuie sur (et se justifie par) les dangers que pose un développement techno-industriel incontrôlé. Dans un troisième temps, nous testons cette hypothèse au moyen d’une étude du discours urbanistique montréalais de 1941 à 1967. Analysant comment les premiers professionnels du Service d’urbanisme de la Ville se représentent Montréal, nous traitons de l’idée de « ville en mouvement », des modalités de représentation de l’espace urbain et de l’injonction à réinventer la ville que l’on retrouve dans le discours urbanistique. À partir de trois figures transversales, soit Hans Blumenfeld, Claude Robillard et Jean-Claude La Haye, nous montrons que le discours urbanistique montréalais des Trente Glorieuses est polyphonique, c’est-à-dire qu’on y retrouve différentes tactiques de légitimation qui forment toutes des variations d’une même grande stratégie discursive de décomposition et recomposition de l’objet urbain. Nous verrons ces tactiques à l’œuvre dans la rénovation urbaine (le plan Dozois et le projet pour le quartier de la Petite-Bourgogne), l’organisation de l’expertise urbanistique (l’Institut d’urbanisme et la Commission provinciale d’urbanisme), et les velléités de planification métropolitaine (Horizon 2000).
This dissertation focuses on the structure of the urban discourse in Montreal during the Trente Glorieuses (Glorious Thirty). Against the dominant interpretation, according to which the urban planning of the Glorious Thirties was disproportionately technophile and had confiscated the power to speak of the city, we show that by dramatizing the decomposition of the urban object and by making the very definition of the city a problem, urban planning creates a discursive space in which technique presents itself as both a problem and a solution. First, we analyze the significance of the critique of technocratic urban planning (the typical expression of which is found in Jane Jacobs) in contemporary political theory, by means of an analysis of the best-selling book Seeing Like a State by James C. Scott. We show that this critique is based on an “overhang hypothesis”, the operation of which is analogous to what Michel Foucault calls “the repressive hypothesis”. We explain its success by showing that it corresponds to the dominant view of criticism as the trial of reason. Rejecting the reception given to it by the anti-planners, we then show that one can find in Foucault's archaeological method elements for an analysis of urban planning that is not only centered on the flaws of modernist ideology and the disproportionate growth of technocratic power. Secondly, we forge a hypothesis about the structure of the urbanistic discourse by means of a rereading of Immanuel Kant, Reinhart Koselleck and Hans Jonas. Rather than assimilating urban planning with a disproportionate form (hubris) of rationalism, it is a question of finding in it a particularly sophisticated reflection on the limits of the power to know, of which the analytic of Kantian finitude is the paradigmatic form. We then use the history of Koselleck's concepts to shed light on the functioning and the intradiscursive effects of the questioning of the traditional concept of city that is carried out by urban planners Finally, Jonas’s ethics of technology allows us to show that modern planning relies on (and is justified by) the dangers of uncontrolled techno-industrial development. Thirdly, we test this hypothesis by means of a study of Montreal's urban planning discourse from 1941 to 1967. Analyzing how the first professionals of the City's Planning Department represented Montreal, we deal with the idea of a city in motion, the methods of representing urban space and the injunction to reinvent the city that we find in urban discourse. Based on three transversal figures—namely Hans Blumenfeld, Claude Robillard and Jean-Claude La Haye—we show that the urban planning discourse of the Glorious Thirties in Montreal is polyphonic, which is to say, we find different legitimization tactics that all form variations of the same great discursive strategy of decomposing and recomposing the urban object. We will see these tactics at work in urban renewal (the Dozois plan and the project for the Little Burgundy district (Petite-Bourgogne)), the organization of urban planning expertise (l’Institut d’urbanisme et la Commission provinciale d’urbanisme), and metropolitan planning ideas (Horizon 2000).

In 'Political Atheism vs. The Divine Right of Kings,' I build on Thompson and Scrivener’s work analysing John Thelwall’s play 'The Fairy of the Lake' as a political allegory, arguing all religious symbolism in 'FL' to advance the traditionally Revolutionary thesis that “the King is not a God.” My first chapter contextualises Thelwall’s revival of 17th century radicalism during the French Revolution and its failure. My second chapter examines how Thelwall’s use of fire as a symbol discrediting the Saxons’ pagan notion of divine monarchy, also emphasises the idolatrous apotheosis of King Arthur. My third chapter deconstructs the Fairy of the Lake’s water and characterisation, and concludes her sole purpose to be to justify a Revolution beyond moral reproach. My fourth chapter traces how beer satirises Communion wine, among both pagans and Christians, in order to undermine any religion that could reinforce either divinity or the Divine Right of Kings.
A close reading of an all-but-forgotten Arthurian play as an allegory against the Divine Right of Kings.