In this thesis we prove the linear stability to gravitational and electromagnetic perturbations of the Reissner-Nordström family of charged black holes with small charge. Solutions to the linearized Einstein-Maxwell equations around a Reissner-Nordström solution arising from regular initial data remain globally bounded on the black hole exterior and in fact decay to a linearized Kerr-Newman metric. We express the perturbations in geodesic outgoing null foliations, also known as Bondi gauge. To obtain decay of the solution, one must add a residual pure gauge solution which is proved to be itself controlled from initial data. Our results rely on decay statements for the Teukolsky system of spin +/-2 and spin +/-1 satisfied by gauge-invariant null-decomposed curvature components, obtained in earlier works. These decays are then exploited to obtain polynomial decay for all the remaining components of curvature, electromagnetic tensor and Ricci coefficients. In particular, the obtained decay is optimal in the sense that it is the one which is expected to hold in the non-linear problem.

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The lateral line organ in fish and amphibians transforms fluid motion in the animal's surroundings into a representation of its hydrodynamic environment. This sense is involved in complex behaviors, ranging from rheotaxis to schooling. The primary sensory neurons are hair cells, each of which can tonically transmit a graded ‘analog' signal to afferent neurons, via highly specialized ‘ribbon' synapses. Many questions about this first step in sensory coding remain to be answered. For example: What is the relationship between the biologically relevant stimulus and hair cell output? How do the synaptic properties of different hair cells contribute to the signal that is sent to the brain? And how are these signals modulated by top-down (efferent) projections? The first chapter of this thesis describes a newly established preparation including an overview of transgenic fish lines, some of which were newly generated, to study the processing of mechanical information in larval zebrafish at various stages, from the periphery to the hindbrain. The second chapter contains a detailed characterization of the relationship between cupula deflection and hair-cell glutamate release. We show that the population of hair cells in the lateral line is highly heterogeneous in terms of their sensitivity, dynamic range and adaptive properties and that this heterogeneity has functional implications for downstream processing. These results are unique because of how well the biophysical, anatomical and physiological context of the actual sensory transduction is maintained. The third chapter describes the effects of (fictive) locomotion on the processing of mechanical information. We show that an efferent signal, which is highly correlated with motor neuron activity, is present in the neuromast and leads to a strong suppression of mechanically induced activity of afferent neurons. This efference copy appears to selectively reduce the gain to hair cells sensitive to posterior cupula deflections.

Wong Zerlina Sukvan. / Thesis submitted in: December 2004. / "Architecture Department, Chinese University of Hong Kong, Master of Architecture Programme 2004-2005, design report." / Includes bibliographical references (leaves 131-134). / Preface: --- p.01-03 / Concept: / Defining Voyeurism --- p.04-10 / Defining Exhibitionism --- p.11-12 / Voyeur vs. Exhibitionist --- p.13-15 / About The Playboy Mansion --- p.16-18 / Ultimate voyeur's delight / Films Case studies: --- p.19-22 / Peeping Tom / Ephemeral --- p.23-24 / Site: --- p.25 / About the Site --- p.26-27 / Film Case Studies: --- p.28-29 / Three / Concepts generated from the site: --- p.30 / Movement in Space --- p.31 / Moving to a destination - Labyrinth --- p.32-33 / Lost in Paths - Maze --- p.34-36 / Design Stage I: / Chapter Phase I --- Conceptual Expressions --- p.37 / Chapter Phase II --- Experiential Design / Objects --- p.38-42 / Space --- p.43-47 / Movement --- p.48-50 / Materials --- p.51-56 / Chapter Phase III --- Conceptual Design --- p.57-67 / Program: --- p.68 / Concept to Program --- p.69 / Project proposal / About Bathing --- p.70-75 / Sensation of baths / The Bathing Phenomenon / Progress through the bath / "Manners, orders and forms" / Voyeur's gaze / Case Study: --- p.76-78 / Baths of Caracalla / Program --- p.79 -81 / Design Stage II: --- p.82 / Chapter Phase I --- Personal Interpretation of bath elements --- p.83-91 / Chapter Phase II --- Bath - Labyrinth --- p.92-97 / Chapter Phase III --- Final Design - Marriage of Labyrinth and Maze (public area) --- p.98 -130 / Bibliography --- p.131 -132 / References --- p.133-134 / Appendix

Este estudo visa o reconhecimento do valor artístico dos mosaicos e da importância do espaço onde estão inseridos. Para isso foram enfocadas as questões do ver mosaicos, que implica seu entendimento como objetos compostos de diversas partes, e do fazer mosaicos, que abrange as questões técnicas de projeto e execução. O espaço é apresentado como elemento essencial na hora de ver mosaicos, visto que os mosaicos transformam o espaço e, também, no sentido contrário, o espaço transforma o mosaico. Na questão de fazer mosaicos, na fase do projeto, exige-se um estudo do espaço em que ele será aplicado. Este trabalho inclui uma amostra de mosaicos de pastilha de vidro em seu espaço na cidade e em edifícios com fotos e ilustrações, visando transportar o leitor para esses espaços, e para os pontos de vista de um mosaicista e de um artista plástico, que projeta murais para espaços públicos. / This study aims at the recognition of the artistic value of mosaics and of the importance of the space into which they are introduced. To achieve this purpose, focus is directed at issues relating to the seeing of mosaics - which implies their being understood as objects composed of diverse parts - and of the making mosaics, which involves technical questions having to do with project and execution. The space is presented as an essential element at the moment in which the mosaic is seen - once the mosaic transforms the space - as well as, in the contrary sense, the space transforms the mosaic. The problem of making mosaics in the project phase demands a study of the space in which it will be applied. This work includes a sample of glass tile mosaics in their space in the city and building, with photos and illustrations, aiming transporting the reader into these spaces, and into the point of view not only of the mosaicist, but also of the plastic artist, who projects murals onto public spaces.

acase@tulane.edu / 1 / Peyton Jones

acase@tulane.edu / This dissertation examines space in 21st century cultural artifacts from Latin America, including narrative and film. My contention is that cultural artifacts from Latin America oscillate between advocacy for cosmopolitan globality and contestation of globalizing forces, making space the theater of the political. I focus on the tension between the global and the national, and how space helps understand the way in which cultural products imagine globalization. The first chapter explains the concepts of ‘place’ and ‘non-place’ theorized by cultural anthropologist Marc Augé. Then, it uses Augé’s categories to examine the representation of the political tension between globalization and the nation-state in an analysis of the novel Zanahorias voladoras (2004) by the Colombian Antonio Ungar (1974-), by focusing on the relationship between trauma, nation and globalization. In the second chapter, I discuss the work of geographer Doreen Massey to explain the importance of understanding how globalization affects different subjectivities in different ways. Then, I analyze Passageiro do fim do dia (2010) by the Brazilian author Rubens Figueiredo (1956-), especially the space of a bus where most of the novel take place, as places of contestation to the globalizing processes that exclude certain subjectivities. Finally, I read the film El hombre de al lado (2009) by Argentine directors Mariano Cohn (1975-) and Gastón Duprat (1969-) as an allegory of the tension between the national and the global, highlighting spatiality and positionality as important categories to understand Latin American cultural production. The third chapter proposes an understanding of mobility using the category dislocated subjects, which I derive from work of sociologist Zygmunt Bauman. In Hotel Pekín (2008) by Colombian author Santiago Gamboa (1965-), the protagonist Frank Michalski is a dislocated subject due to the complex relationship to his past as a former Colombian national and his current life as a global-trotting executive. In Azul-Corvo (2010) by Brazilian writer Adriana Lisboa (1970-), the protagonist is a dislocated subject, as she moves from Brazil to the United States to look for her biological father. At the end, the novel proposes dislocation as a possible community of transnational, transcultural and multilingual identities. / 1 / Camilo A. Malagon

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