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Kelly, Damien Peter [Verfasser], Stefan [Akademischer Betreuer] Sinzinger, Pascal [Gutachter] Picart, and Steen [Gutachter] Hanson. "Paraxial wave optics / Damien Peter Kelly ; Gutachter: Pascal Picart, Steen Hanson ; Akademischer Betreuer: Stefan Sinzinger." Ilmenau : Universitätsbibliothek Ilmenau, 2017. http://d-nb.info/1142005097/34.
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Hu, Xuan. "Les voies du salut : prédication et défense de la foi catholique au premier XVIe siècle." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUL022.
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Cette thèse se fonde sur une relecture des sermons de François Le Picart, qui fut le grand prédicateur du Paris du premier XVIe siècle, et qui a laissé, grâce à des impressions savantes, un corpus riche de ses prises de parole, permettant d'examiner la genèse de l’imaginaire d’une violence ainsi véhiculée et promue oralement. Le Picart est en effet au cœur de l’histoire de la prédication combattante qui se met en place dès les années 1520-1550 avant d’envahir la sphère publique à partir de 1560. Il est un précurseur qui donne les codes autorisant la progressive maturation d’une tension de violence théophanique dont les hommes devaient être les outils. Par son truchement ; le lecteur peut saisir la puissance des mots qui émanait de la prédication, une autre éloquence de la Renaissance qui visait à mettre en fonctionnement une stratégie d’endoctrinement du peuple catholique à partir du principe d’une mise en défense panique des consciences opérant sur les bases d’une actualisation de la doctrine de l’Église. Dans cette optique, Le Picart accorda une place déterminante à une technique de mise en scène de l’imaginaire de la violence qui reposait sur le recours à des peintures mentales qu’il cherchait à projeter dans la psyché de ses auditeurs. Cette stratégie était un dispositif rhétorique susceptible de susciter, par effet de pathos, une angoisse qui était eschatologique dans la tension inhérente aux sermons opposant dramatiquement l’amour zélé pour Dieu au péché toujours plus croissant de l’homme. Le Picart fut un prophète, qui non seulement parlait pour Dieu et par Dieu mais aussi travaillait l’imaginaire des fidèles en infusant en eux un « parler Dieu », les mettant en condition, après 1560, de devenir des guerriers de Dieu. L’enfer qu’il décrivait comme attendant les hérétiques dans le temps de leur mort allait alors venir sur terreThis thesis is based on a rereading of the sermons of François Le Picart, who was the great preacher of Paris in the first sixteenth century, and who left, thanks to learned impressions, a rich body of his speeches, allowing to examine the genesis of the imagination of a violence conveyed and promoted orally. Le Picart is in fact at the heart of the history of preaching combat from the years 1520-1550 before its invading to the public sphere from 1560. He was a precursor who gave the codes which would authorize in the next years the gradual maturation of a tension of theophanic violence of which men were to be the tools. Through it, the reader can grasp the power of the words which emanated from the preaching, another eloquence of the Renaissance which aimed to put into operation a strategy of indoctrination of the Catholic people, based on the principle of a panic defense of the consciences operating on the bases of updating the doctrine of the Church. From this perspective, Le Picart gave a decisive place to a technique of staging the imaginary of violence that relied on the use of mental paintings that he sought to project into the psyche of his listeners. This strategy was a rhetorical device capable of arousing, through pathos, an anguish that was eschatological in the tension inherent in sermons dramatically pitting zealous love for God against the ever-increasing sin of man. Picart was a prophet, who not only spoke for God and through God but also worked the imagination of the faithful by infusing in them a "speaking of God", putting them in a condition, after 1560, to become warriors of God. The hell that he described which awaiting heretics at the time of their death would then come to earth
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Meyer, Véronique. "Aperçu sur le commerce et l'illustration des thèses dans la seconde moitié du XVIIe siècle." Paris 4, 1996. http://www.theses.fr/1996PA04A001.
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McCrea, Patrick Sean. "Grand Illusions; Elusive Facts| The Survival of Regional Languages in France Despite 'Their Programmed Demise'| Picard in Picardy and Provencal in Provence." Thesis, Tulane University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10608347.
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This dissertation studies the survival, or resistance, of regional languages in France through the use of two case studies: Picard in Picardy and Provençal in Provence. In order to create the French nation, the revolutionaries of 1789 decided upon the necessity of political unity. In order to facilitate, or to create, this unity, the cultural provinces were abolished and generic départements were created in their stead. However, when political unity did not occur immediately after the territorial change, the revolutionaries determined that national unity, both political and cultural, would be attained through the imposition of the French language. It was thus language that was deemed to be the greatest separating factor of the French at this period. In 1794, Abbé Grégoire called for the “programmed demise” of the regional languages through education in and of French. While this program was not officially enacted until the Third Republic (1870–1914), due to numerous factors, these languages were supposed to have died long ago. While their numbers of speakers have decreased, and there are no longer any monolingual regional language speakers, they still exist. How is this fact possible? Despite explanations attributed to enduring diglossia, the extended process of language shift or time itself, this study focuses on regional identity and posits that the durable bond between regional identity and language is the explanation.
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Simonis, Joseph P. "Newton-Picard Gauss-Seidel." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-051305-162036/unrestricted/simonis.pdf.
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Simonis, Joseph P. "Newton-Picard Gauss-Seidel." Digital WPI, 2005. https://digitalcommons.wpi.edu/etd-dissertations/285.
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Newton-Picard methods are iterative methods that work well for computing roots of nonlinear equations within a continuation framework. This project presents one of these methods and includes the results of a computation involving the Brusselator problem performed by an implementation of the method. This work was done in collaboration with Andrew Salinger at Sandia National Laboratories.
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Horst, Michael. "Cohomology of Picard Categories." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587396997809887.
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Wahlström, Dennis. "The Great Picard Theorem." Thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-152136.
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In this essay, we present a proof of the great Picard theorem by showing that a holomorphic function with an essential singularity attains infinitely many complex values in the vicinity of the singularity.Vi kommer att presentera ett bevis på Picards stora sats genom att visa att en holomorf funktion med en väsentlig singularitet antar oändligt många komplexa värden i ett område av singulariteten.
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Brochard, Sylvain. "Champs algébriques et foncteur de Picard." Phd thesis, Université Rennes 1, 2007. http://tel.archives-ouvertes.fr/tel-00492445.
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Le foncteur de Picard d'un schéma a fait l'objet d'une étude approfondie dans les années soixante. La décennie suivante a vu naître avec les travaux de Giraud puis Deligne, Mumford, et enfin Artin la notion de champ algébrique, qui généralise celle de schéma. Nous nous intéressons dans cette thèse au foncteur de Picard d'un champ algébrique et démontrons à son sujet un certain nombre de résultats bien connus dans le cadre des schémas. Nous étudions entre autres la représentabilité du foncteur de Picard, ses propriétés de séparation, de finitude relative, et les déformations de faisceaux inversibles. Nous construisons également la composante neutre du foncteur de Picard et étudions sa propreté. Quelques exemples viennent étayer le propos. Ces travaux nous ont amené à résoudre un certain nombre de problèmes techniques relatifs à la cohomologie des faisceaux abéliens sur le site lisse-étale d'un champ algébrique. Ces questions ont été rassemblées en annexe en fin de volume.
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Cardoso, Walcir. "Topics in the phonology of Picard." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=67478.
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This thesis investigates a number of phonological phenomena in Picard, a Gallo-Romance dialect spoken France: Across-Word Regressive Assimilation and its variation patterns, and the domain-sensitive strategies that the language employs in the Resolution of Vocalic Hiatus (i.e. Semivocalization, Vowel Elision and Heterosyllabification). More generally, the thesis is about "variation" in its broadest sense. It explores variation that occurs within a single prosodic domain as well as the type of variation that operates across domains; while the former is variable and triggered by linguistic and extralinguistic factors (and is thus the subject of sociolinguistic investigation), the latter is invariable and strictly determined by domains. For the analysis of these two types of "variation", I adopt the framework of Optimality Theory. One of the advantages of this framework is that it allows us to account for domain-driven and sociolinguistic variation within a language by means of a single grammar. In the context of domain-sensitive phenomena, this can be accomplished by the decomposition of constraints into their domain-specific counterparts, each of which may be ranked independently within a single grammar to yield the alternations observed across domains. Based on this line of research and influenced by insights from Prosodic Phonology, I propose an approach to the decomposition of constraints in which only prosodic domains may serve for constraint specification. I argue that this is advantageous because it constrains the grammar by imposing limitations on the types of domains that may be subject to decomposition, and captures Prosodic Phonology's view that the interface between phonology and morphosyntax must be indirect, that is, mediated by domains from the prosodic hierarchy. In the context of variation triggered by linguistic and extralinguistic factors, I argue that variable patterns are best analyzed as the result of crucial nonranking of constraints. A positCette these examine un nombre de phenomenes phonologiques dans le Picard, un dialecte Gallo-roman parle en France : l' Assimilation regressive a travers le mot et les patrons de variation qui gouvement ce processus, ainsi que les strategies sensibles aux domaines que la langue emploie pour la Resolution de hiatus vocalique (i.e. Formation de semi-voyelles, Elision vocalique et Heterosyllabification). Plus generalement, la these traite de la « variation,» dans son sens le plus large. Elle explore la variation qui se produit dans un seul domaine prosodique de meme que le type de variation qui opere a travers les domaines; tandis que le premier est variable et declenche par des facteurs linguistiques et extra-linguistiques (etant ansi le sujet d'investigations sociolinguistiques), le dernier est invariable et strictement determine par les domaines. Pour l'analyse de ces deux types de « variation », j'adopte le cadre theorique de la theorie de l'optimalite. L'un des avantages de cette theorie est qu'elle nous permet d'expliquer les variations qui s'appliquent a la fois par le domaine phonologique et par les facteurs sociolinguistiques gouvernant une langue au moyen d'une seule grammaire. Dans le contexte de phenomenes sensibles aux domaines, ceci peut etre accompli par la decomposition de contraintes dans leurs homologues qui sont specifiques sur les domaines, dont chacun peut etre independamment classe dans une seule grammaire pour produire les alternances observees entre les domaines. Base sur cette ligne de recherche et influence par les fondements de la Phonologie prosodique, je propose une approche a la decomposition de contraintes selon laquelle seulement les domaines prosodiques peuvent servir pour la specification de contraintes. Je soutiens que cette approche offre des avantages marques, parce qu' elle contraint la grammaire en imposant des limitations sur les types de domaines qui peuvent etre sujets a la decomposition. De plus, cette approche est compa
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Devilly, Pascal. "Transports et structuration de l'espace picard." Amiens, 1999. http://www.theses.fr/1999AMIE0008.
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L'analyse des relations entre les flux de transport et les villes est primordiale pour comprendre la structuration de l'espace picard. La permanence historique des villes, situees aux principaux carrefours, traduit cette synergie. Centres de commerce et de production, elles beneficierent aussi du passage des flux de transit emanant des puissants centres voisins. Mais subissant leur domination, lapicardie fut confinee au role de terre de passage et d'espace peripherique, organise en cellules autonomes et sans metropole. Les changements intervenus apres 1945 (destructions, decentralisation industrielle. Al. . . ) renforcerent ces aspects. Qu'en est-il aujourd'hui ? notre analyse des flux en picardie confirme son etat de terre de transit lie a sa position geographique interpolaire. Toutefois, elle genere egalement des flux vigoureux. Cette double realite entraine une geographie des flux originale marquee par la preponderance de l'axe meridien et la faible polarisation amienoise. Ces elements allies a la faiblesse des flux intraregionaux peuvent-ils definir un espace central ? quel est alors le role des villes dans ce trafic ? les villes picardes participent activement a la geographie des flux mais le commandement leur echappe caracterisant une region non-metropolitaine. L'importance du transit et sa situation intercentrale determinent un espace intermediaire mais atypique : les poles encadrants, aux effets varies, sont nombreux et parmi eux, paris joue un role capital. Les nouvelles infrastructures de transport, l'evolution des poles encadrants et le reveil des villes regionales peuvent changer favorablement la geographie picarde.
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Dawson, Alain. "Variation phonologique et cohésion dialectale en picard : vers une théorie des correspondances dialectales." Toulouse 2, 2006. http://www.theses.fr/2006TOU20058.
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Au travers du cas du picard, nous explorons les mécanismes phonologiques qui assurent la cohésion dialectale d’une langue, dans le cadre de la Théorie de l’Optimalité et de la Théorie des Correspondances. L’essentiel de la recherche porte sur la palatalisation des occlusives vélaires, source d’une alternance dialectale complexe en picard. Après examen des facteurs de cohésion extralinguistiques, une première analyse OT s’appuie sur l’hypothèse de la dialectologie générative selon laquelle la cohésion dialectale est dévolue à des formes sous-jacentes communes. Cette approche se heurte cependant à certains cas d’opacité. On fait ensuite appel, dans le cadre de la Théorie des Correspondances, à un nouveau type de correspondances entre variétés en contact. La cohésion dialectale s’établit à la fois sur les plans de la perception et de la production. Cette approche est enfin testée sur un autre fait de variation en picard : l’alternance voyelle-zéro, dans une phonologie surface seuleThrough the example of the Picard language I explore the phonological mechanisms which ensure dialectal cohesion within a language, in the framework of Optimality Theory and Correspondence Theory. The core part of my research deals with palatalization of velar stops, which induces a complex dialectal alternation in Picard. I first examine the extralinguistic factors of cohesion, then I propose an OT analysis based upon the hypothesis of generative dialectology: dialectal cohesion is due to the existence of common underlying forms. This approach, however, fails to explain certain cases of opacity. In the framework of Correspondence Theory, I propose a new type of correspondence between varieties in contact. Dialectal cohesion is grounded in both perception and production. I also test this approach in a surface-only phonology to solve another case of variation in Picard: vowel-zero alternation
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Btoush, Ahmad Bahjat al. "L'aventure théâtrale de Louis-Benoît Picard (1769-1828)." Thesis, Toulouse 2, 2017. http://www.theses.fr/2017TOU20047/document.
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L’héritage littéraire de Picard s’élève à une centaine des pièces de théâtre et environ six romans. Il y traite les problèmes sociaux, politiques et religieux de son époque, à l’instar de Molière qui semble être la première source d’inspiration de notre dramaturge. Dans ses Mémoires, Alexandre Dumas décrit Louis-Benoît Picard comme « le petit Molière du XIXe siècle ou le moderne Molière ». Ce rapprochement paraît plus ou moins discutable dans la mesure où, de nos jours, les traces de ce « petit Molière » sont rares et il est désormais totalement oublié par l’histoire littéraire. Entre cette affirmation de Dumas et la place médiocre qu’occupe notre dramaturge dans l’histoire du théâtre, deux explications pourraient être envisagées. La première réside dans le fait que la période révolutionnaire où Louis-Benoît Picard a vécu a été trop chargée historiquement et les critiques qui s’intéressent à cette période accordent plus d’importance aux événements historiques qu’aux productions littéraires, de sorte que la plupart des écrivains de cette période sont tombés dans l’oubli. La deuxième explication revient aux productions littéraires de Picard elles-mêmes, considérées comme alourdies de répétitions, conventionnelles et dépourvues de toute originalitéThe literary heritage of Picard can reach as many as a hundred plays and about six novels. He deals with the social, political and religious problems of his time, like Molière, who seems to be the first source of inspiration for our playwright. In his Mémoires, Alexandre Dumas describes Louis-Benoît Picard as "the little Moliere of the nineteenth century or the modern Moliere". This rapprochement seems more or less debatable insofar as the traces of this "little Moliere" are rare today and it is now completely forgotten in Literary History. Between this assertion of Dumas and the mediocre place occupied by our dramatist in the history of the theater, two explanations could be envisaged. The first is that the revolutionary period in which Louis-Benoît Picard lived has been overloaded historically and critics who are interested in this period place more importance on historical events than on literary productions, Most of the writers of this period have fallen into oblivion. The second explanation belongs to Picard's literary productions themselves, represented as repetitive, conventional, and far from original
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Maruri, Leandro, and Claudio Maeda. "La Picasa." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/136439.
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Tesis para optar al grado de Magíster en AdministraciónLeandro Maruri [Parte I - Análisis estratégico y de mercado.] Claudio Maeda [ Parte II - Análisis organizativo y financiero.]
En el presente trabajo evaluamos el proyecto de establecer un feedlot en la provincia de Santa Fe, Argentina, bajo el nombre de Picasa. La actividad de feedlot consiste en el engorde intensivo del ganado a corral, encerrándolos cuando tienen 190 kg y mediante una dieta balanceada a base de granos, tenerlos listos para su venta luego de 128 días cuando tengan 350 kg. Desarrollaremos el feedlot en un campo de 50 hectáreas, el cual se encuentra en una zona ideal para realizar este tipo de actividad debido al clima y la cercanía a los productores agropecuarios y clientes. Por dicho campo pagaremos un monto mensual bajo ya que el mismo se encuentra en una zona afectada por el desborde de la laguna Picasa hace más de 15 años, lo que dejó un suelo que no es apto para la agricultura, ya que al retirarse el agua dejó al suelo con un alto nivel de salinidad. Planeamos tener los servicios de engorde a corral en 5 hectáreas para 877 cabezas, de las cuales un 60% inicialmente serán propias y las restantes 40% para el servicio de hotelería. Con el correr de los años, iremos cambiando el mix, incrementando en una mayor medida el servicio de hotelería ya que nos genera un mayor margen por cabeza. El precio de los insumos como los alimentos, medicinas, novillos y precio de la carne son variables fundamentales que afectan la rentabilidad de este proyecto. De acuerdo a nuestro plan de negocios definimos los siguientes resultados financieros para nuestro feedlot: En base al análisis realizado basado en entrevistas a productores de feedlots, revistas y páginas especializadas, la coyuntura donde los precios de cereales vs carnes son favorables, las barreras bajas de entrada y salida al negocio, la apertura de la Unión Europea para carne Argentina de feedlots y el positivo panorama ante el cambio de gobierno actual, estamos convencidos que es una buena oportunidad para invertir en nuestro feedlot La Picasa.
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Trostorff, Sascha [Verfasser], Rainer [Akademischer Betreuer] Picard, and Albert [Akademischer Betreuer] Milani. "Well-posedness and causality for a class of evolutionary inclusions / Sascha Trostorff. Gutachter: Rainer Picard ; Albert Milani. Betreuer: Rainer Picard." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://d-nb.info/1067729445/34.
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Waurick, Marcus [Verfasser], Rainer [Akademischer Betreuer] Picard, and Desmond [Akademischer Betreuer] McGhee. "Limiting Processes in Evolutionary Equations - A Hilbert Space Approach to Homogenization / Marcus Waurick. Gutachter: Rainer Picard ; Desmond McGhee. Betreuer: Rainer Picard." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://d-nb.info/1067188398/34.
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Savoie, Michelle. "Firmin Picard et la rencontre de trois cultures littéraires." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ62588.pdf.
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Paoli, Guy. "La taverne au moyen age : arras et l'espace picard." Paris 3, 1987. http://www.theses.fr/1987PA030099.
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L'introduction fixe la zone de prospection: l'espace linguistique picard, la periode: du dou zieme au seizieme siecle, la matiere etudiee: tous les genres litteraires, les legislations re ligieuses et civiles, les pieces judiciaires. L'ensemble est divise en quatre grands chapitres le premier chapitre s'efforce de dissiper la confusion entre la taverne, le cabaret, l'au berge et l'hotellerie. La taverne ajoute a la vente du vin au detail, la consommation sur place; puis elle etend son role alimentaire en associant tour a tour au vin le pain, le fro mage, le hareng, les grillades, les tripes et d'une facon plus ample, la ripaille. Elle est le centre des festoiements et occupe une place preponderante dans la vie des confreries et des corporations. Ordinairement, toutefois, la taverne ne fournit pas la nourriture. Quand, elle deroge a cette habitude, elle se distingue difficilement du cabaret. Celui-ci, a l'origi ne, n'est qu'une buvette ou l'on debite surtout de la goudale, puis il offre aussi du vin et annexe ensuite les repas, avant de proposer des chambres, rivalisant ainsi avec l'oste-bour geois et l'auberge. L'hotellerie dispose de l'ecurie et s'adresse a une clientele aisee. Le deuxieme chapitre etudie les sites et les structures de la taverne a partir des signes distinctifs (cercle, feuillage, banniere), puis des enseignes. Viennent ensuite les avancees et les annexes (buffet, achinte, cortil), l'espace interieur avec les substructures (celliers et boves), l'etage (solier et chambre haute) et le rez-de-chaussee (bouge et chambre basse). Le feu et la jonchee traduisent la recherche de l'intimite, tandis que la question des lieux d'aisance conduit a une analyse des comportements publics dans la societe urbaine. Le troisieme chapitre est consacre aux fraudes, classees et reliees a la tradition antique. La religion chretienne, cependant, fait sentir son influence jusque dans la legislation moderne. Deux figures significatives sont suivies dans leur evolution: le cliche isaique: "ton vin est coupe" et la loi mosaique sur l'equite du poids et de la mesure. Le dernier chapitre traite du jeu de des a la taverne. Il developpe deux mouvements: l'un sur l'homme depouille de ses vetements par le tavernier, l'autre sur la relation que le moyen age etablit entre le demon et les des. La taverne prend alors une dimension meta physique. Et la conclusion porte sur l'antithese et la complementarite taverne-eglise. Un cinquieme volume comprend une iconographie, des pieces judiciaires et une enquete sur le vin et la biere a arras a la fin du quatorzieme siecleThe introduction delineates the field of researches (the area of the picard dialect), the time (from the twelfth to the sixteenth century), the matter (all literary genres, religious and lay legislations and judiciary documents). The whole work is divided into four main chapters. Chapter one tries to dispel any confusion between taverns, wine-shops, inns and hostelries. To the retailing of wine the tavern adds the drinking of it on the premises, then its food function grows by adding bread, cheese, herring, grilled-meat and tripe (so to speak "revelry") to wine. It is the feasting centre and a primary place in the life of brotherhoods and guilds. Yet, as a rule, the tavern will not afford food. When it strays from this customary way it is hardly to be distinguished from a wine-shop. Originally the latter is but drinking-place in which "goudale" is the main thing. Then wine is found there, then meals can be had and rooms at last, which makes the place a rival for the inn and the "oste bourgeois". The hostelry affords its stable, and it accommodates well-to-do people. Chapter two examines tavern sites and structures through their distinctive features (ring foliage, banners), then their sign-boards. After that we see the advanced posts and out-buil dings ("buffet," "achinte," "cortil"), the inner space and its sub-structures (cellars and "boves"), the upper floor (with "solier" and upper chamber) and the ground floor ("bouge" and lower chamber). A longing for intimacy is to be seen in the use of the hearth and a floor strewn with rushes, while public closets lead us to analyse public behaviour in towns. Chapter three deals with fraud, classified and related to ancient tradition. Christianity, however, sets its stamp upon modern legislation. Two significant figures are studied through their evolutions : the isaic cliche "there is water in your wine" and the mosaic law about honest weights and measures. The last chapter deals with dice at the tavern. It develops a couple af notions: the first one about the man stripped of his clothes by the publican, the second one about the link that people, during the middle ages, felt to exist between dice an demon. The tavern, there, assumes metaphysical proportions. The conclusion rests on antithetic and complementary connections between tavern and church
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Foucault, François. "Equations de Picard-Fuchs et courbes de genre deux." Caen, 1991. http://www.theses.fr/1991CAEN2042.
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Ryan, Cathy L. "Beyond housekeeping: the American picara in twentieth century narrative /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487854314870409.
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Schieder, Simon Fabian. "Picard-Lefschetz Oscillators for the Drinfeld-Lafforgue-Vinberg Compactification." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:17467321.
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We study the singularities of the Drinfeld-Lafforgue-Vinberg compactification of the moduli stack of G-bundles on a smooth projective curve for a reductive group G. The study of these compactifications was initiated by V. Drinfeld (for G=GL_2) and continued by L. Lafforgue (for G=GL_n) in their work on the Langlands correspondence for function fields; unlike the work of Drinfeld and Lafforgue, however, we focus on questions about the singularities of these compactifications which arise naturally in the geometric Langlands program. A definition of the compactification for a general reductive group G is also due to Drinfeld (unpublished) and relies on the Vinberg semigroup of G; this case will be dealt with in the forthcoming work [Sch]. In the present work we focus on the case G=SL_2. In this case the compactification can alternatively be viewed as a canonical one-parameter degeneration of the moduli space of SL_2-bundles. We study the singularities of this one-parameter degeneration via the weight-monodromy theory of the associated nearby cycles construction: We give an explicit description of the nearby cycles sheaf together with its monodromy action in terms of certain novel perverse sheaves which we call "Picard-Lefschetz oscillators", and then use this description to determine the intersection cohomology sheaf and other invariants of the singularities. Our proofs rely on the construction of certain local models for the one-parameter degeneration which themselves form one-parameter families of spaces which are factorizable in the sense of Beilinson and Drinfeld. We also include a first application on the level of functions.Mathematics
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Sticka, Wilhelm Michael. "Floquet theory for picard-type systems of differential equations /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9720555.
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Paoli, Guy. "La Taverne au Moyen-Age Arras et l'espace picard /." Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37608597w.
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Laval-Turpin, Nicole. "Vie et oeuvre d'un poète, Hélène Picard (1873-1945)." Orléans, 2000. http://www.theses.fr/2000ORLE1034.
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Hélène Picard (1873-1945) a consacré sa vie à la poésie. Elle connait son heure de gloire, lors des années florissantes de la poésie féminine (1907-1908), grâce à l'instant éternel qui en illustre les grands thèmes - panthéisme, hymne à l'amour, acuité des sentiments. Ce recueil devient l'emblême de l'inspiration et du goût d'une époque. L'itinéraire biographique de cette toulousaine, indissociable, de sa création poétique, révèle une évolution exemplaire : les ruptures de la grande guerre transforment une bourgeoise de province en femme libre qui part vivre seule à Paris. Là, sa rencontre avec Colette et ses cercles littéraires, puis une passion malheureuse pour Francis Carco opérent une mutation radicale dans son écriture. Sabbat (1923) relate la quête de l'absolu par l'aventure poétique ; Pour un mauvais garçon (1927) par son originalité verbale, rythmique, visuelle illustre, à sa mesure, la révolution artistique des peintres et poétes de la Butte Montmartre dans les années 1910. Malgré des réserves, ces deux oeuvres, par leur dimension inventive et visionnaire, participent aux innovations de la poésie dans l'entre-deux-guerres et présentent une certaine modernité. A ce titre, elles méritent une réhabilitation, comme leur auteur dont l'existence reflète, à plusieurs égards, l'évolution de la femme dans l'histoire du XXe siècle jusqu'en 1945.
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Achet, Raphaël. "Groupe de Picard des groupes unipotents sur un corps quelconque." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM038/document.
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Soit k un corps quelconque. Dans cette th±se, on étudie le groupe de Picard des k-groupes algébriques unipotents (lisses et connexes).Tout k-groupe algébrique unipotent est extension itérée de formes du groupe additif; on va donc d'abord s'intéresser au groupe de Picard des formes du groupe additif. L'étude de ce groupe est faite avec une méthode géométrique qui permet de traiter le cas plus général des formes de la droite affine. On obtient ainsi une borne explicite sur la torsion du groupe de Picard desformes de la droite affine et sur la torsion de la composante neutre du foncteur de Picard de leur complétion régulière. De plus, on trouve une condition suffisante pour que le groupe de Picard d'une forme de la droite affinesoit non trivial et on construit des exemples de formes non triviales de la droite affine dont le groupe de Picard est trivial.Un k-groupe algébrique unipotent est une forme de l'espace affine. Afin d'étudier le groupe de Picard d'une forme X de l'espace affine avec une méthode géométrique, on définit un foncteur de Picard "restreint". On montre que si X admet une complétion régulière, alors le foncteur de Picard "restreint" est représentable par un k-groupe unipotent (lisse, non nécessairement connexe).Avec ce foncteur de Picard "restreint" et des raisonnements purement géométriques, on obtient que le groupe de Picard d'une forme unirationnelle de l'espace affine est fini. De plus, on généralise un résultat dû à B. Totaro: si k est séparablement clos, et si le groupe de Picard d'un k-groupe algébrique unipotent commutatif est non trivial, alors il admet une extension non triviale par le groupe multiplicatifLet k be any field. In this Ph.D. dissertation we study the Picard group of the (smooth connected) unipotent k-algebraic groups.As every unipotent algebraic group is an iterated extension of forms of the additive group, we will study the Picard group of the forms of the additive group. In fact we study the Picard group of forms of the additive group and the affine line simultaneously using a geometric method. We obtain anexplicit upper bound on the torsion of the Picard group of the forms of the affine line and their regular completion, and a sufficient condition for the Picard group of a form of the affine line to be nontrivial. We also give examples of nontrivial forms of the affine line with trivial Picard groups.In general, a unipotent k-algebraic group is a form of the affine n-space. In order to study the Picard group of a form X of the affine n-space with a geometric method, we define a "restricted" Picard functor; we show that if X admits a regular completion then the "restricted" Picard functor is representable by a unipotent k-algebraic group (smooth, not necessarly connected). With this "restricted" Picard functor and geometric arguments we show that the Picard group of a unirational form of the affine n-space is finite. Moreover we generalise a result of B. Totaro: if k is separablyclosed and if the Picard group of a unipotent k-algebraic group is nontrivial then it admits a nontrivial extension by the multiplicative group
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Laface, Roberto [Verfasser]. "Picard numbers of abelian varieties and related arithmetic / Roberto Laface." Hannover : Technische Informationsbibliothek (TIB), 2017. http://d-nb.info/1131186710/34.
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Zayadeh, Raphael [Verfasser]. "Picard-Fuchs equations of dimensionally regulated Feynman integrals / Raphael Zayadeh." Mainz : Universitätsbibliothek Mainz, 2014. http://d-nb.info/104737675X/34.
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Vigne, Mickaël. "Étude sociologique intraculturelle des jeux traditionnels dans l'espace linguistique picard." Paris 5, 2006. http://www.theses.fr/2006PA05H022.
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Beaucoup de facteurs contribuent à modeler la richesse culturelle d’une société. Dans cette diversité, nous y incluons le jeu, et plus particulièrement le jeu traditionnel. En effet, ce dernier renferme toutes les normes et les valeurs de la société qui les préserve. Afin de comprendre la signification de la culture ludique du Nord de la France, nous avons mené une étude approfondie d’un corpus de 108 jeux traditionnels pratiqués dans l’espace linguistique picard et de 2154 questionnaires exploitables remplis par les pratiquants. Pour ce faire, nous avons mis en évidence puis analysé les traits de logique interne des jeux traditionnels des six familles que nous avons constituées. A l’aide de croisements statistiques, nous avons montré l’interdépendance des différents traits de logique interne qui prennent en compte les joueurs et les rapports qu’ils entretiennent avec l’espace, autrui le temps et les objets. En mettant en relation les résultats de la logique interne avec ceux de la logique externe nous avons fait ressortir l’expression significative de la culture ludique régionale. Ces significations prennent sens à travers le rôle des fêtes, des carnavals, des géants, des ducasses, des estaminets, des animaux, des paris, de la culture matérielle et de la mixité des joueurs. Ainsi, nous avons montré comment les jeux traditionnels participent à l’interprétation de la réalité en structurant le monde et la pensée opératoire des individus du Nord. Cette liaison étroite entre les caractéristiques des jeux traditionnels et les traits de la culture nordiste, confère à ces mêmes jeux, un rôle fondamental dans la socialisation des acteurs du Nord-Pas-de Calais et de la Picardie. Un constat permet d’établir que les jeux traditionnels sont témoins et agents de la société qui les nourrit ; ils en sont le miroir social qui reflète tous les attributs identitaires et culturels d’une sociétéA lot of factors contribute to modelling a society’s cultural wealth. In this diversity, we include games, and more especially traditional games. Indeed, these hold the norms and values of the society which preserved them. In order to understand the significance of the North of France’s game culture, we led a detailed survey of 108 traditionnal games played in the “picard” linguistic space, and of 2154 exploitable questionnaires filled in by players. In order to do this, we emphasized and analyzed the internal logic traits of the traditional games belonging to the six families we have constituted. With the help of statistical crossings, we showed the interdependence of the different internal logic traits which take into account the players and the relationship they have with space, others, time and objects. While putting in relation the internal logic results with the external logic ones, we brought out the regional game culture’s significant expression. These significations take meaning through the role of feasts, carnivals, giants, fairs, fairs, taverns, animals, bets, material culture and the players’ social mix. Thus, we showed how traditional games participate in the interpretation of the reality while structuring the world and the operating thought of individuals from the north of France. This narrow link between the traditional games’ and Northern culture’s features, confers to these same games a fundamental role in the socialisation of the Nord-Pas-de –Calais and Picardie actors. Stating this makes it possible to establish that traditional games are witnesses and agents of the society which feeds them; they are its social mirror, which reflects all of society’s identity and cultural attributes
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LEJEUNE, XAVIER. "Aspects medico-sportifs du ballon au poing, sport traditionnel picard." Amiens, 1990. http://www.theses.fr/1990AMIEM109.
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Éloy, Jean-Michel. "Aspects diachroniques et synchroniques de la constitution du Picard : études de morphologie." Paris 7, 1989. http://www.theses.fr/1989PA070044.
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Le Picard, en tant qu'idiome discret, met en question la notion même de langue ou de dialecte, et la délimitation des variétés. On tente d'abord de dégager de diverses théories (de la dialectologie a la céroplastique) un mode d'existence des langues comme réalités sociolinguistiques, lie à la focalisation du langage par les communautés à des fins identitaires. Puis on montre dans un essai de sociolinguistique diachronique que le picard a tendu à se constituer en idiome autonome a travers l'histoire diglossique, processus qui n'est pas arrive a terme. La notion de langue, conçue comme "référentiel normatif", est liée, en situation de contact ou de variation bipolaire, aux opérations de catégorisation des locuteurs et des groupes, dans un rapport complexe avec "le linguistique", i-e les contraintes proprement linguistiques. On pose la place centrale de la morphologie dans la catégorisation idiomatique, et on se donne un corpus dont les données sociales et la méthode de transcription sont analysées précisément. L'observation de la morphologie (verbes et articles) permet de caractériser le "discours picard" comme pratique d'autonomisation et de focalisation toujours partielles, mais ni négligeables ni incohérentes. La notion de référentiel normatif rend compte de la pertinence linguistique relative du terme "le picard"Picard as a discrete idiom calls in question the very notion of language or dialect, and the delimitation of varieties. We first attempt to isolate within various theories (from dialectology to creolistics) a mode of being of languages as sociolinguistic realities, linked with a focussing of languages by communities for identity ends. Then we show in an attempt to diachronic sociolinguistics how Picard has tended to constitute an autonomous idiom through the history of diglosay, a process which has not been achieved until now. The notion of language, viewed as a "normative referential", is linked, in a situation of contact or bi-polar variation, with the operations of categorization by speakers and groups, in complex reference with purely linguistic facts, it mean, linguistic constraints. A central place is devoted to morphology in idiomatic categorization and a corpus is devised, the social characteristics and transcription method of which are accurately analyzed. The observation of morphology (verbs and articles) enables to characterize the "Picard speech" as a practice of autonomizing and focussing, always partial, yet not insignificant nor incoherent. The notion of normative referential accounts for the relative linguistic pertinence of the expression "le Picard"
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Koblick, Darin C. "Parallel high-precision orbit propagation using the modified Picard-Chebyshev method." California State University, Long Beach, 2013.
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Kendall, Guy. "Analogues of Picard sets for meromorphic functions with a deficient value." Thesis, University of Nottingham, 2004. http://eprints.nottingham.ac.uk/10062/.
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Picard's theorem states that a non-constant function which is meromorphic in the complex plane C omits at most two values of the extended complex plane C*. A Picard set for a family of functions F is a subset E of the plane such that every transcendental f in F takes every value of C*, with at most two exceptions, infinitely often in C-E. If f is transcendental and meromorphic in the plane, then: (i) [Hayman and others] if N is a positive integer, f^Nf' takes all finite non-zero values infinitely often; (ii) [Hayman] either f takes every finite value infinitely often, or each derivative f^(k) takes every finite non-zero value infinitely often. We can seek analogues of Picard sets ie subsets E of the plane and an associated family of functions F, such that (for case (i)) f^Nf' takes all finite non-zero values infinitely often in C-E, for all f in F. Similarly for case (ii). In this thesis we improve or extend the results previously known, both for Picard sets proper and for the analogous cases (i) and (ii) mentioned above, when the family of functions F consists of meromorphic functions which have deficient poles (in the sense of Nevanlinna).
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Матвійчук, Світлана, and Єдуард-Юрій Туряниця. "Застосування мобільних додатків SurveyMonkey та PicsArt при проектуванні нових моделей одягу." Thesis, Київський національний університет технологій та дизайну, 2021. https://er.knutd.edu.ua/handle/123456789/18124.
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Метою дослідження є аналіз можливостей практичного застосування мобільних додатків SurveyMonkey та PicsArt в процесі проектування нових моделей одягу.The work is to study the analysis of the possibilities of practical application of mobile applications SurveyMonkey and PicsArt in the process of designing new clothing models. As a result of the work, a questionnaire was developed and sketches of men's clothing were created, the advantages and disadvantages of using these mobile applications in designing men's clothing for young people were identified and systematized.
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Hillmann, William C. (William Carmen). "Crystallization studies of Pictet-Spenglerases." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43812.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2008.Vita.
Includes bibliographical references.
Natural products are a rich source of medicinally important molecules. Monoterpene indole alkaloids from plants are an especially important source of therapeutic molecules. Due to the complexity of these molecules, biosynthesis of derivatives is an attractive way of obtaining molecules with potentially new or improved functionality. The rational design of mutants with altered/expanded substrate scope is an important step in engineering organisms to produce such compounds. In monoterpene indole alkaloid biosynthesis, the enzyme strictosidine synthase catalyzes the first committed reaction. This reaction is a Pictet-Spengler coupling between tryptamine and secologanin and produces the biosynthetic intermediate strictosidine, common to all monoterpene indole alkaloids. To better understand the structural features that impart binding selectivity, crystallization studies of this enzyme were performed. The native enzyme and several interesting mutants were studied; co-crystallization experiments with inhibitors and substrates were also performed. Diffraction quality crystals of the native enzyme were obtained following optimization by grid screening, additive screens, and macroseeding. Data on the optimized crystals was collected at the Argonne National Labs synchrotron radiation source. In addition to monoterpene indole alkaloids, the benzylisoquinoline alkaloids are another class of medicinally important plant derived natural products. In a reaction analogous to that catalyzed by strictosidine synthase, the first committed step of benzylisoquinoline biosynthesis is a Pictet-Spengler reaction between 4-hydroxyphenylactetaldehyde and dopamine, catalyzed by the enzyme norcoclaurine synthase. Two different forms of this enzyme have been identified, neither of which shows any homology to strictosidine synthase.
(cont.) Structural information for these enzymes could provide general structural features required for enzymatic Pictet-Spengler reactions. Before crystallization, the enzymes were expressed and tested for activity. Once active preparations of protein were available, crystallization studies were performed and crystals were obtained.
by William C. Hillmann.
S.M.
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Cloitre, Guillaume. "Sur le motif intérieur de certaines variétés de Shimura : le cas des variétés de Picard." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCD033/document.
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Les variétés de Picard sont des variétés de Shimura associées au groupe des similitudes unitaires d'un espace hermitien de dimension 3 sur un corps CM. Elles paramétrisent les classes d'isomorphismes de variétés abdéliennes munies de certaines structures supplémentaires. En particulier, il existe une variété abdélienne universelle sur une variété de Picard et plus généralement des familles de Kuga-Sato.A ces variétés sont attachés des groupes de cohomologie. L'un des intérêts de telles variétés est qu'il est possible de trouver des représentations automorphes dans les groupes de cohomologie qui lui sont attachés, en particulier dans les groupes de cohomologie intérieure. Selon le programme de Langlands, ces représentations correspondent conjecturalement à des motifs. Le résultat principal de cette thèse est la construction de facteurs directs du motif intérieur de certaines familles de Kuga-Sato sur des variétés de Picard, c'est-a-dire d'un analogue motivique de la cohomologie intérieure. Cela passe par une étude détaillée des poids du motif bord de ces familles. On en déduit l'existence de motifs associés à certaines représentations automorphesPicard varieties are Shimura varieties associated to the group of unitary similitudes of an hermitian space of dimension 3 over a CM eld. They parametrize isomorphism classes of abelian varieties with some additional data. In particular, there exists a universal abelian variety over a Picard variety and more generally Kuga-Sato families. Cohomology groups are attached to these varieties. Automorphic representations can be found in cohomology groups, more precisely in interior cohomology groups. Following Langlands' program, these representations correspond conjecturally to motives. The main result of this thesis is the construction of direct factors of the interior motive of certain Kuga-Sato families over a Picard variety, meaning a motivic analogue of interior cohomology. To prove this, we study the weights of the boundary motive of such families. We deduce from this the existence of a motive associated to certain automorphic representations
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Peternell, Natalie Kathrin [Verfasser], and Emanuel [Akademischer Betreuer] Scheidegger. "Coherent sheaves on Calabi-Yau manifolds, Picard-Fuchs equations and potential functions." Freiburg : Universität, 2018. http://d-nb.info/1174142456/34.
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Eloy, Jean-Michel. "Historiographie d'une langue minoritaire, le picard, et problématique generale de la langue." Universität Leipzig, 1995. https://ul.qucosa.de/id/qucosa%3A32986.
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Peruzzi, Nelson Jose. "Dinamica não linear e controle de sistemas ideais e não-ideais periodicos." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265398.
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Orientadores: Jose Manoel BalthazarTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
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Resumo: Neste trabalho, apresenta-se um novo método numérico para aproximar matriz de transição de estados (STM) para sistemas com coeficientes periódicos no tempo. Este método, é baseado na expansão polinomial de Chebyshev, no método iterativo de Picard e na transformação de Lyapunov-Floquet (L-F) e aplica-se na análise da dinâmica e o controle de sistemas lineares e periódicos. Para o controle, aplicam-se dois projetos para eliminar o comportamento caótico de sistemas periódicos no tempo. O primeiro, usa o projeto de controle realimentado baseado na aplicação da transformação L-F, e o objetivo do controlador é conduzir a órbita do sistema para um ponto fixo ou para uma órbita periódica. No segundo, utiliza-se o controle não-linear para bifurcação, e o objetivo, neste caso, é modificar (atrasar ou eliminar) as características de uma bifurcação ao longo de sua rota para o caos. Como exemplo, aplicou-se, com sucesso, a técnica para análise e o controle da dinâmica: num pêndulo com excitação paramétrica, no oscilador de Duffing, no sistema de Rõssler e sistema pêndulo duplo invertido. O método, também, mostrou-se satisfatório na análise e controle de um sistema monotrilho não ideal
Abstract: In thiswork, a new numericalmethodto approximatestatetransitionmatrix(STM) for systems with time-periodic coefficients is presented. This method is based on the expansion Chebyshev polinomials,on the Picard iterationand on the Lyapunov-Floquet transfonnation(transfonnationL-F). It is applied to the dynamicalanalysis and control of linear periodic systems.For the control, two projectsto eliminatethe chaoticbehaviorof time periodic systemsare applied.The first one, uses the feedbackcontroldesignbased on the L-F transfonnation,and the controller'sobjectiveis to drive the orbit of the systemto an equilibriumpoint or a periodicorbit. fu the secondone, the non-lineal control for bifurcations used, and the objective,in this case, is to modify (to put back or to eliminate) the characteristicsof a bifurcation along its route to chaos. As example, the technique for dynamical analysis and control was applied, successfully, to a pendulum with parametric excitement, the Duffing's oscillator,the Rõssler's systemand the inverteddoublependulum The methodwas, also, to be shownsatisfactoryin the analysisand controlof a monorailnon-idealsystem
Doutorado
Mecanica dos Sólidos e Projeto Mecanico
Doutor em Engenharia Mecânica
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Gährs, Swantje [Verfasser]. "Picard-Fuchs equations of special one-parameter families of invertible polynomials / Swantje Gährs." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2011. http://d-nb.info/1019549955/34.
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Imechrane, Meriem. "Applications harmoniques : singularités apparentes, lemme de Schwarz-Yau et grand théorème de Picard." Corté, 2012. http://www.theses.fr/2012CORT0027.
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Le premier but de ce travail est de donner des preuves « réelles » du grand théorème de Picard et d’un théorème voisin de Myung Kwack. Par « réelles » nous voulons dire n’utilisant pas d’analyse complexe, particulièrement la partie qui repose sur le théorème de Cauchy. Ce programme est facilement mené à bien à l’aide d’un théorème de J. Sacks et K. Uhlenbeck et d’une large généralisation du lemme de Schwarz-Pick de la théorie des fonctions classique, à savoir le lemme de Schwarz-Yau. Le principal résultat obtenu ainsi est la version réelle suivante du théorème de Kwack. (. . . /. . . )The first aim of this work is to provide ʺrealʺ proofs of the Big Picard Theorem and of a related theorem of Myung Kwack. By ʺreal" we mean : without using complex analysis, especially that part relying on the Cauchy Theorem. This program is easily carried out with the help of a theorem of J. Sacks and K. Uhlenbeck and a huge generalization of the Schwarz-Pick Lemma of classical function theory, namely the Schwarz-Yau Lemma. The main result so acheved is the following real version of Kwack’s theorem. (. . . /. . . )
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Picard, Sylvie. "Les facteurs prédisposant à l'anorexie mentale : étude de vingt cas /par Sylvie Picard." Montpellier 1, 1989. http://www.theses.fr/1989MON11081.
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Sigismondi, Costantino. "High precision ground-based measurements of solar diameter in support of Picard mission." Nice, 2011. http://www.theses.fr/2011NICE4059.
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L’argument de la mesure du diamètre solaire est introduit dans le cadre plus ample de la variabilité solaire, et, en conséquence, de l’influence du Soleil sur le climat de la Terre. Il est possible de mesure le diamètre solaire avec une précision suffisamment bonne pour des études de changements climatiques et de variations d’irradiance en utilisant des données anciennes d’éclipses totales. Cela permettrait l’extension de la connaissance de la luminosité solaire en arrière de trois siècles, grâce à la connaissance du paramètre W=dlogL/dLogR. La méthode des éclipses et des grains de Baily est largement traitée, et un avancement significatif pare rapport aux derniers 40 ans a été obtenu avec la reconstruction de la fonction d’assombrissement du limb solaire à partir de la lumière des grains de Baily , et la recherche du point d’inflexion. Le cas de la dernière éclipse annulaire (15 janvier 2010) a été étudié en détail, tandis que l’atlas des grains de Baily a été publié à partir de toutes les observations faites dans le monde par les membres du IOTA, aussi avec l’analyse du diamètre solaire pendant l’éclipse de 2006. Le travail de thèse a été développé pendant la transition entre l’atlas photographique du limb lunaire publié par Watts en 1963, et corrigé dans les années suivantes par milliers d’observations, et la carte réalisée avec le laser-altimètre de la mission lunaire japonaise Kaguya, publiée en novembre 2009. L’autre méthode pour une mesure précise du diamètre solaire en alternative de la mission Picard / Picard-sol est le « drift-scan » utilisé soit par les astrolabes solaires, soit par les télescopes plus grands. Les observatoires de Locarno et Paris ont commencé des observations du soleil avec cette méthode avec des résultats encourageants. Pour la première fois, le mouvement de l’image du Soleil entier a été détectée sur des fréquences de 1/100 Hz. Cela peut commencer à expliquer les résultats des campagnes d’observation de Greenwich et Rome de 1850 à 1955. Cette activité « sous-Hertz » de la turbulence atmosphérique est un autre avancement significatif dans ce domaine de recherche. Le « télescope géant à trou sténopeïque » de la ligne méridienne de Santa Maria degli Angeli à Rome permet l’introduction didactique de presque tous les arguments d’astrométrie classique traités dans cette thèse. Cet essai didactique complète la thèseThe theme of the measurement of the solar diameter is introduced in the wider framework of solar variability, and, consequently of the influence of the Sun upon the Earth’s climate. It is possible to measure the solar diameter with an accuracy enough good for studies on climate changes and irradiation variations using ancient data on total eclipses. This would permit to extend the knowledge of the solar luminosity back to three centuries, through the knowledge of the parameter W=dlogL/dLogR. The method of eclipses and Baily beads is widely discussed, and a significant improvement with respect to the last 40 years, has been obtained by reconstructing the Limb Darkening Function from the Baily’s bead light curve, and the search of its inflexion point. The case of the last annular eclipse (Jan 15, 2010) has been studied in more detail, while the atlas of Baily’s beads has bee published with all the observations made worldwide by IOTA members, along with an analysis of the solar diameter during the eclipse of 2006. The work of this thesis has been developed during the transition between the photographic atlas of the lunar limb published by Watts in 1963 and corrected in the following decades by thousands observations, and the laser-altimeter map made by the Kaguya lunar probe and published in November 2009. The other method for the accurate measurement of the solar diameter alternative to the Picard/Picard-sol mission is the drift-scan method user either by the solar astrolabes either larger telescope. The observatories of Locarno and Paris have started an observational program of the Sun with this method with encouraging results. For the first time an image motion of the whole Sun has been detected over frequencies of 1/100 Hz. This may start explain the puzzling results of the observational campaigns made in Greenwich and Rome from 1850 to 1955. This sub-Hertz activity of the atmospheric seeing is another fundamental achievement in this research field. A giant pinhole telescope as the meridian line of Santa Maria degli Angeli in Rome, permits to introduce almost all the arguments of classical astrometry presented in this thesis. In this consists the didactic outreach as a complement of this thesis
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Upton, Margaret Grace. "Galois representations attached to Picard curves and traces of Hecke operators for GL₂." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1464114051&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
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Poulet, Denise. "Au contact du picard et du flamand : parlers du Calaisis et de l'Audomarois." Lille : Atelier national reprod. th. univ. Lille 3 : Centre d'études médiévales et dialectales, 1987. http://catalogue.bnf.fr/ark:/12148/cb36109851n.
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DOURLEN, MARTINE. "L'anguillulose, un probleme picard ? reflexions a propos des cas observes au chru d'amiens." Amiens, 1989. http://www.theses.fr/1989AMIEM048.
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Durick, Andrew Michael. "Analysis and improvement of the nonlinear iterative techniques for groundwater flow modelling utilising MODFLOW." Thesis, Queensland University of Technology, 2004. https://eprints.qut.edu.au/15990/1/Andrew_Durick_Thesis.pdf.
Full textAbstract:
As groundwater models are being used increasingly in the area of resource allocation, there has been an increase in the level of complexity in an attempt to capture heterogeneity, complex geometries and detail in interaction between the model domain and the outside hydraulic influences. As models strive to represent the real world in ever increasing detail, there is a strong likelihood that the boundary conditions will become nonlinear. Nonlinearities exist in the groundwater flow equation even in simple models when watertable (unconfined) conditions are simulated. This thesis is concerned with how these nonlinearities are treated numerically, with particular focus on the MODFLOW groundwater flow software and the nonlinear nature of the unconfined condition simulation.
One of the limitations of MODFLOW is that it employs a first order fixed point iterative scheme to linearise the nonlinear system that arises as a result of the finite difference discretisation process, which is well known to offer slow convergence rates for highly nonlinear problems. However, Newton's method can achieve quadratic convergence and is more effective at dealing with higher levels of nonlinearity. Consequently, the main objective of this research is to investigate the inclusion of Newton's method to the suite of computational tools in MODFLOW to enhance its flexibility in dealing with the increasing complexity of real world problems, as well as providing a more competitive and efficient solution methodology. Furthermore, the underpinning linear iterative solvers that MODFLOW currently utilises are targeted at symmetric systems and a consequence
of using Newton's method would be the requirement to solve non-symmetric Jacobian systems. Therefore, another important aspect of this work is to investigate linear iterative solution techniques that handle such systems, including the newer Krylov style solvers GMRES and BiCGSTAB.
To achieve these objectives a number of simple benchmark problems involving nonlinearities through the simulation of unconfined conditions were established to compare the computational performance of the existing MODFLOW solvers to the new solution strategies investigated here. One of the highlights of these comparisons was that Newton's method when combined with an appropriately preconditioned Krylov solver was on average greater than 40% more CPU time efficient than the Picard based solution techniques. Furthermore, a significant amount of this time saving came from the reduction in the number of nonlinear iterations due to the quadratic nature of Newton's method. It was also found that Newton's method benefited more from improved initial conditions than Picard's method. Of all the linear iterative solvers tested, GMRES required the least amount of computational effort. While the Newton method involves more complexity in its implementation, this should not be interpreted as prohibitive in its application. The results here show that the extra work does result in performance increase, and thus the effort is certainly worth it.
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Durick, Andrew Michael. "Analysis and improvement of the nonlinear iterative techniques for groundwater flow modelling utilising MODFLOW." Queensland University of Technology, 2004. http://eprints.qut.edu.au/15990/.
Full textAbstract:
As groundwater models are being used increasingly in the area of resource allocation, there has been an increase in the level of complexity in an attempt to capture heterogeneity, complex geometries and detail in interaction between the model domain and the outside hydraulic influences. As models strive to represent the real world in ever increasing detail, there is a strong likelihood that the boundary conditions will become nonlinear. Nonlinearities exist in the groundwater flow equation even in simple models when watertable (unconfined) conditions are simulated. This thesis is concerned with how these nonlinearities are treated numerically, with particular focus on the MODFLOW groundwater flow software and the nonlinear nature of the unconfined condition simulation. One of the limitations of MODFLOW is that it employs a first order fixed point iterative scheme to linearise the nonlinear system that arises as a result of the finite difference discretisation process, which is well known to offer slow convergence rates for highly nonlinear problems. However, Newton's method can achieve quadratic convergence and is more effective at dealing with higher levels of nonlinearity. Consequently, the main objective of this research is to investigate the inclusion of Newton's method to the suite of computational tools in MODFLOW to enhance its flexibility in dealing with the increasing complexity of real world problems, as well as providing a more competitive and efficient solution methodology. Furthermore, the underpinning linear iterative solvers that MODFLOW currently utilises are targeted at symmetric systems and a consequence of using Newton's method would be the requirement to solve non-symmetric Jacobian systems. Therefore, another important aspect of this work is to investigate linear iterative solution techniques that handle such systems, including the newer Krylov style solvers GMRES and BiCGSTAB. To achieve these objectives a number of simple benchmark problems involving nonlinearities through the simulation of unconfined conditions were established to compare the computational performance of the existing MODFLOW solvers to the new solution strategies investigated here. One of the highlights of these comparisons was that Newton's method when combined with an appropriately preconditioned Krylov solver was on average greater than 40% more CPU time efficient than the Picard based solution techniques. Furthermore, a significant amount of this time saving came from the reduction in the number of nonlinear iterations due to the quadratic nature of Newton's method. It was also found that Newton's method benefited more from improved initial conditions than Picard's method. Of all the linear iterative solvers tested, GMRES required the least amount of computational effort. While the Newton method involves more complexity in its implementation, this should not be interpreted as prohibitive in its application. The results here show that the extra work does result in performance increase, and thus the effort is certainly worth it.
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Pereira, Hugo Miguel Lino. "Alergia à picada de Himenópteros em cães." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2016. http://hdl.handle.net/10400.5/11845.
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Dissertação de Mestrado Integrado em Medicina VeterináriaTodos os anos, uma quantidade significativa de cães tem manifestações alérgicas após ser vítima de picada por himenópteros, não sendo conhecida a prevalência desta alergia em Portugal. Adicionalmente, em medicina veterinária, existem poucos estudos sobre os métodos de diagnóstico disponíveis para estudar a alergia aos himenópteros, incluindo a sua eficácia e segurança. Os testes intradérmicos (IDs) são, em medicina humana, meios de diagnóstico seguros de elevada sensibilidade, sendo os resultados apoiados por testes in vitro. Na primeira fase do trabalho procurou-se recolher informações sobre a casuística desta alergia em Portugal. A partir de inquéritos a centros veterinários do país, concluiu-se que a maioria dos casos ocorre na primavera-verão, que o agente envolvido na picada geralmente não é identificado, que os adultos jovens estão mais predispostos, sendo comummente picados na face e que as picadas acontecem maioritariamente em animais de exterior, sendo que, não parecem existir raças mais predispostas. Concluiu-se ainda que o angioedema é o sinal clínico de maior ocorrência, que o tratamento mais usado pelos clínicos são os glucocorticóides e que os donos não sabem como prevenir o problema. Neste estudo não se encontrou relação entre o número de casos de cães alérgicos picados e as zonas de maior densidade populacional de Apis melífera (p>0,05). A segunda fase deste trabalho incidiu na realização de testes IDs com três venenos específicos de himenópteros (Apis melífera, Vespula spp. e Polistes spp.) para avaliar a rentabilidade diagnóstica e a segurança. O protocolo utilizado foi baseado nos protocolos sequencial e simultâneo descritos em medicina humana e, tanto quanto sabemos, este protocolo foi usado pela primeira vez em cães. Os resultados apresentados revelam que os IDs podem ser realizados com segurança e que são eficazes no sentido de identificar hipersensibilidade à picada de himenópteros. O estudo revela também que, além do agente suspeito, alguns dos pacientes tendem a apresentar dupla positividade nos IDs, ficando por saber qual a influência das reações cruzadas nestes resultados. Os animais responderam positivamente a concentrações entre 0,01 a 1 μg/ml. O grupo controlo não apresentou qualquer tipo de reatividade a essas concentrações. Estudos futuros já planeados, com recurso a testes serológicos, poderão permitir estudar a existência de reatividade cruzada. Este estudo abre novas portas no diagnóstico de cães alérgicos a venenos de himenópteros, permitindo desenhar novos tratamentos, nomeadamente com recurso à imunoterapia específica.
ABSTRACT - HYMENOPTERA STING ALLERGY IN DOGS - Although its prevalence is still not known in Portugal, every year dogs are stung by hymenoptera and show allergic reactions. To our knowledge, there are only a couple of studies regarding hymenoptera allergy and its diagnosis in dogs. In human patients, the use of intradermal tests is both safe and sensitive and results are sometimes supported by in vitro tests. In this work, firstly, we performed surveys in veterinary centres in order to gather as much information as possible about this allergy in Portugal. We have concluded that most hymenoptera stings happen in the spring/summer season; that usually the owners don’t recognise the insect which causes the allergy; that young adult dogs living outside are more often stung and that this occurs mainly on the face. It also seems there is no breed predisposition for this allergy. We also found that angioedema is the most reported clinical sign and that corticosteroids are often used to treat this allergy. Interestingly, owners are not given any instructions on how to prevent the following sting. The regions with higher density of Apis melífera in Portugal did not relate with an increase number of dogs stung (p>0,05). In the second part of this work, intradermal tests using three distinct venoms (Apis melífera, Vespula spp. and Polistes spp.) were performed to evaluate both the diagnostic yield and test safety. As far as we know, the protocol used in this study was adapted from human sequential and simultaneous protocols and it was, for the first time, used in dogs. The results revealed that intradermal testing is both efficient and safe to use in dogs and helpful in the diagnosis of hymenoptera stings in allergic animals. The study also reveals that although dogs did react to the main sting suspect, some of them also tend to be positive to other venoms. It’s yet to be evaluated, in dogs, what kind of role cross-reactivity plays in this type of tests. Dogs have positively reacted to 0,01 a 1 μg/ml of venom concentration intervals. The control group hasn’t shown any reaction to these concentrations. Further investigations in dogs with serological testing will allow studying the presence and nature of cross-reactivity. It is hoped that our research in hymenoptera allergy in dogs will improve the understanding of the disease and allows developments in both diagnosis and management options, particularly the use of specific venom immunotherapy as prevention.
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Priel, Jan [Verfasser], and Christoph [Akademischer Betreuer] Schweigert. "Symmetries of 3d-TQFTs and the Brauer-Picard Group / Jan Priel. Betreuer: Christoph Schweigert." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2016. http://d-nb.info/1106404807/34.
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Fahrner, Anne-Kathrin [Verfasser], and Jürgen [Akademischer Betreuer] Hausen. "Smooth Mori dream spaces of small Picard number / Anne-Kathrin Fahrner ; Betreuer: Jürgen Hausen." Tübingen : Universitätsbibliothek Tübingen, 2017. http://d-nb.info/1196703264/34.
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