Η πιο κάτω εργασία έχει σκοπό να περιγράψει την κβαντική μηχανική. Θα γίνει μια προσπάθεια συνδυασμού με την σχετικότητα σαν μια ενιαία θεωρία. Στη συνέχεια θα συζητηθεί η κβαντικη θεωρία πεδίων. Τελος θα συζητηθεί το ηλεκτρομαγνητικό πεδίο οι θεωρίες βαθμίδος και το πεδίο Yang-Mills. / The following essay will discuss the quantum theorem. It will present the field theorem and later we will discuss the Yang-Millw field.

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Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

<p>We examine the Einstein equation coupled to the Klein-Gordon equation for a complex-valued scalar field. These two equations together are known as the Einstein-Klein-Gordon system. In the low-field, non-relativistic limit, the Einstein-Klein-Gordon system reduces to the Poisson-Schrödinger system. We describe the simplest solutions of these systems in spherical symmetry, the spherically symmetric static states, and some scaling properties they obey. We also describe some approximate analytic solutions for these states.</p><p>The EKG system underlies a theory of wave dark matter, also known as scalar field dark matter (SFDM), boson star dark matter, and Bose-Einstein condensate (BEC) dark matter. We discuss a possible connection between the theory of wave dark matter and the baryonic Tully-Fisher relation, which is a scaling relation observed to hold for disk galaxies in the universe across many decades in mass. We show how fixing boundary conditions at the edge of the spherically symmetric static states implies Tully-Fisher-like relations for the states. We also catalog other ``scaling conditions'' one can impose on the static states and show that they do not lead to Tully-Fisher-like relations--barring one exception which is already known and which has nothing to do with the specifics of wave dark matter.</p> / Dissertation

Animal slaughter has recently become highly visible in popular food media. This thesis interrogates the myths, assumptions and ideologies underlying this so-called New Carnivore movement, through critical analysis of a range of popular gastronomic texts. Socially-constructed ideas about ‘reality’, ‘sentimentality’, ‘sacrifice’, and ‘redemption’ are intimately implicated in the process of animal slaughter, as are the notions of ‘good taste’ and social distinction. The domination of animals, demonstrated through the slaughter, butchery, and consumption of nonhuman bodies, is held to be an integral component in the performance of gender, as well as a means of reconnecting, via a kind of secular epiphany, with ‘Nature’ at its most authentic. As a hostile backlash against the social progress made by the animal advocacy and vegetarian movements, New Carnivorism denigrates vegetarianism and veganism as outdated, unfashionable, unnatural, puritanical and rude. Although these texts’ potential to inspire farmed animal welfare reform should not be ignored, New Carnivorism ultimately serves to naturalize, justify and promote the continued consumption of meat, and the continued exploitation of nonhuman animals, in Western societies.

Three different aspects of the sinh-Gordon model are explored in this thesis. We begin, in chapter one, with a summary of the model and the necessary background. Chapter two studies the model with two boundary conditions. Two approaches are presented to investigate the reflection factors off the boundaries and the energy of the theory. In chapter three, perturbation theory is developed to study the theory with one general boundary condition. A contribution to the quantum reflection factor is obtained and compared with the result obtained for the special boundary condition. Chapters four and five investigate the supersymmetric extension of the model in the presence of a single boundary. Firstly, the classical limits of the supersymmetric reflection matrices are checked. The exact reflection factors are studied perturbatively up to the second order of the coupling constant. Secondly, the perturbation theory and the path integral formalism are employed in the supersymmetric model to study the quantum reflection factors. We conclude with a brief sixth chapter describing the outlook for further investigations.

In this thesis, we consider the massive field theories in 1+1 dimensions known as affine Toda quantum field theories. These have the special property that they possess an infinite number of conserved quantities, a feature which greatly simplifies their study, and makes extracting exact information about them a tractable problem. We consider these theories both in the full space (the bulk) and in the half space bounded by an impenetrable boundary at x = 0. In particular, we consider their fundamental objects: the scattering matrices in the bulk, and the reflection factors at the boundary, both of which can be found in a closed form. In Chapter 1, we provide a general introduction to the topic before going on, in Chapter 2, to consider the simplest ATFT—the sine-Gordon model—with a boundary. We begin by studying the classical limit, finding quite a clear picture of the boundary structure we can expect in the quantum case, which is introduced in Chapter 3. We obtain the bound-state structure for all integrable boundary conditions, as well as the corresponding reflection factors. This structure turns out to be much richer than had hitherto been imagined. We then consider more general ATFTs in the bulk. The sine-Gordon model is based on a(^(1))(_1), but there is an ATFT for any semi-simple Lie algebra. This underlying structure is known to show up in their S-matrices, but the path back to the parameters in the Lagrangian is still unclear. We investigate this, our main result being the discovery of a "generalised bootstrap" equation which explicitly encodes the Lie algebra into the S-matrix. This leads to a number of new S-matrix identities, as well as a generalisation of the idea that the conserved charges of the theory form an eigenvector of the Cartan matrix. Finally our results are summarised in Chapter 5, and possible directions for further study are highlighted.

Des mutations du gène codant la serine-thréonine kinase WNK1 sont responsables de l'Hypertension Hyperkaliémique Familiale (HHF), une forme rare d'hypertension associée à une hyperkaliémie et une acidose métabolique hyperchlorémique. WNK1 donne naissance à une isoforme ubiquitaire, L-WNK1, et à une isoforme dépourvue de domaine kinase fonctionnel et exprimée exclusivement dans le néphron, KS-WNK1. Plusieurs autres isoformes sont générées par un mécanisme d'épissage alternatif mais n'ont jamais été étudiées en détail. Nous avons tout d'abord établi une description exhaustive de l'ensemble des isoformes de WNK1 et quantifié leurs niveaux d'expression respectifs dans un panel de tissus humains et murins ainsi que dans les différents segments du néphron. Nous avons ainsi montré que 9 exons de WNK1 sont soumis à épissage alternatif, ce de manière tissu-spécifique. Dans un second temps, afin de comprendre la physiopathologie de l'HHF, et de ce fait le rôle de WNK1 dans la régulation de la pression artérielle et de l'homéostasie ionique, nous avons généré des souris WNK1+/FHHt, porteuses d'une délétion du premier intron de WNK1, donc de la mutation HHF humaine. Les souris ont une pression artérielle augmentée, une hyperkaliémie et une acidose métabolique hyperchlorémique. Nous avons montré que ce phénotype provient d'une activation du co-transporteur sodium-chlore NCC secondaire à la surexpression de L-WNK1 dans le néphron distal. En conclusion, ce travail a permis d'établir une description détaillée de toutes les isoformes de WNK1 et de leur profil d'expression et de mieux comprendre la physiopathologie de l'HHF par mutation de WNK1

Thesis (Ph.D.)--Tufts University, 1989. / Submitted to the Dept. of English. Includes bibliographical references (leaves 209-215). Access restricted to members of the Tufts University community. Also available via the World Wide Web;