Este trabalho surgiu a partir da experiência como psicóloga do Instituto de Ortopedia e Traumatologia do Hospital das Clínicas da faculdade de Medicina da Universidade de São Paulo. Mais especificamente ao longo dos anos trabalhando no Grupo de Prótese e Órteses, com pessoas que sofreram amputação de um ou mais membros. A perda de uma parte do corpo implica alterações significativas na vida de um indivíduo, sendo que as amputações decorrentes de acidentes em geral têm a característica de serem súbitas e imprevisíveis, ocasionando mudanças bruscas para as quais não existe preparo possível. A principal questão que norteou este trabalho diz respeito às conseqüências psíquicas que uma perda física pode ocasionar. Procurou-se compreender de que forma, diante de uma ruptura no corpo, há uma interferência na organização psíquica e na maneira pela qual o indivíduo percebe o mundo e se percebe nele; isso, durante o período de reabilitação. Buscou-se refletir sobre um momento de perda da integridade corporal e seus reflexos na unidade psicossomática, a partir de casos clínicos, tendo como referência a psicanálise winnicottiana. Dessa forma, levou-se em conta o percurso do desenvolvimento emocional segundo a teoria do amadurecimento pessoal de D.W.Winnicott para se refletir acerca da possível relação existente entre o estágio alcançado nas tarefas próprias do desenvolvimento normal pelo indivíduo e as conseqüências em termos da continuidade ou não do processo de amadurecimento após a amputação. Para esta investigação utilizou-se o método clínico e o referencial psicanalítico, sendo que para a análise da questão proposta neste trabalho foram apresentados quatro casos clínicos. A perda de uma parte do corpo ocasionou mudanças em todos os indivíduos que fizeram parte deste estudo. Mudou o corpo, a forma de se locomover, o trabalho, o sustento pessoal e familiar, o contato social. Porém a maneira por meio da qual cada um percebeu, significou e vivenciou essa perda e essas mudanças não foi equivalente nem determinada pela qualidade da perda. Assim, concluímos que as conseqüências psíquicas de uma perda física serão aquelas relativas às condições que cada indivíduo tem de elaborar imaginativamente essa perda e transformá-la em vivência, experiência, história pessoal e interpessoal. A articulação da teoria com a análise e discussão do material clínico permitiu perceber que não é possível caracterizar uma clínica dos amputados. Isso porque o que temos são tantas clínicas quanto nos for possível conhecer os indivíduos amputados em seu processo de amadurecimento pessoal anteriormente à amputação. Ou seja, uma amputação não direciona incondicionalmente o modo de um indivíduo estar no mundo, mas implica alterações significativas em sua existência, o que remete à necessidade de reformulações em sua identidade para incluir essa nova dimensão de experiência. A dificuldade em realizar a elaboração imaginativa dessa perda, pode tornar a amputação um acontecimento não integrado na vida de uma pessoa, com conseqüências prejudiciais à sua saúde e ao seu desenvolvimento. / This work arose from the experience as a psychologist in the Institute of Orthopedist and Traumatology of the Hospital das Clinicas of the faculty of Medicine of the University of São Paulo. More specifically along the years working on the Group of Prothesis and Orthesis, with people that suffered amputation of one or more members. The loss of a part of the body involves significant changes in the life of a person. The amputations originated from accidents in general have a characteristic of being sudden and unpredictable causing abrupt alterations in which no preparation is made possible. The main subject which directed this work concerns the psychic consequences that a physical loss causes. We intend to understand in what way, from a rupture of the body, there is the interference of the psychic organization and in what way the person notices the world and perceives himself in it; this, during the period of rehabilitation. We wanted to reflect about the moment of the loss of the integrity of the body and its reflexes on the psychosomatic unit, from clinical cases, with the theoretical reference of maturing of D. W. Winnicott. In this way, we took into account the course of the emotional development according to the theory of personal maturing to reflect about the possible relation existing between the stages reached on the proper tasks of the normal development of the person and the consequences in terms of continuity or not of the process of maturing after the amputation. For this investigation we used the clinical method and the psychoanalysis reference. For the analysis of the subject proposed in this work we presented four clinical cases. The loss of a part of the body caused changes in all of the persons which were part of this study. Changed the body, the way to move, the job, the personal and family maintenance, the social contact. In the other hand the way through which each one perceives, signifies and lives this loss and these changes was not equivalent nor determined by the quality of the loss. This way, we conclude that the psychic consequences of a physical loss are those related to the conditions that each person has to elaborate imaginatively the loss and transform it in a way of life, experience, personal and interpersonal story. The articulation of the theory with the analysis and discussion of the clinical material permitted to notice that it is not possible to characterize a clinic of the amputated. This because what we have are as many clinics as we are able to know the amputated persons in their process of personal maturing previous to the amputation. Or else, an amputation does not direct unconditionally the way that a person exists in the world, but implies in significant alteration of his existence, what refers to a need of reformulations in his identity to include this new dimension of experience. The difficulty in accomplishing the imaginative elaboration of this loss, can transform the amputation in a non integrated occurence in the life of a person, with bad consequences to his health and to his development.

Avez-vous déjà senti le monde toucher à sa fin ? Quel serait selon vous votre premier instinct ? Cette thèse propose de regarder de plus près ce qui semble être une des réactions des plus naturelles: l’immersion dans le récit. En partant des travaux de la sociologie des mouvement sociaux conduits par Francesca Polletta, l’hypothèse de ce travail suggère que dans les contextes anxiogènes de catastrophes d’antan et d’aujourd’hui — guerrière, environnementale, ou autre — la narration joue un rôle important lors de la constitution et l’organisation de nouveaux acteurs collectifs, incitant ainsi au changement qui permettra de sortir de la crise. Si toutes formes de récit peuvent nous aider à agir ensemble, cette thèse se focalise sur la charge politique d’un genre en particulier, celui de la science-fiction. S’il faut attendre les travaux pionniers de Darko Suvin pour que le monde académique s’éveille au potentiel de cette forme de para-littérature, les nombreux projets utopiques, contre-utopiques, dystopiques, voire même apocatopiques qui jalonnent l’histoire de l’architecture montrent que les architectes ont deviné depuis longtemps le potentiel subversif du genre.Ces fictions architecturales politisées sont notre terrain de jeu: le corpus est constitué d’histoires nées sur les terres de la catastrophe, à l’aube et au crépuscule du XXe siècle tel que défini par l’historien Eric Hobsbawm — d’un côté lors de l’éclatement en 1914 de la Première Guerre mondiale et de l’autre entre 1992-1995 lors du long siège de Sarajevo. Ces deux points temporels sont reliés par des projets appartenant à la même famille politique, celle de l’anarchisme - dans son incarnation souvent appelée socialisme libertaire pacifiste — tel qu’il est compris et mis en architecture par Bruno Taut (le Glashaus, Architecture alpine, La dissolution de la ville, Le constructeur du monde, Les galoches du bonheur, Mimari Bilgisi) et Lebbeus Woods (Underground Berlin, Zagreb Free-Zone, War and Architecture). Leurs anarchitectures sont accompagnées par le travail d’écrivains engagés — des figures représentatives de la facette dite dissidente et activiste du récit de science-fiction — comme Paul Scheerbart (Rakkóx, le milliardaire, Malvu. Le Timmonier, Lesabéndio. Un roman astéroïde, L’Architecture de verre), J. G. Ballard (I.G.H.), Gheorghe Săsărman (La quadrature du cercle) et China Miéville (The City & The City). Ce périple va nous permettre d’observer, à travers une lentille architecturale, l’histoire et les transformations du genre de la science-fiction au XXe siècle, ainsi que les attitudes des architectes face au conflit.Le sujet n’est pas isolé de son contexte historique. Suivant une analyse en anti-thèse, le positionnement politique des protagonistes va s’affronter aux fictions de groupes rivaux, et notamment à celles du futurisme guerrier de F. T. Marinetti (Mafarka, le futuriste) et de l’architecte officiel de son mouvement Antonio Sant’Elia (La Città Nuova). Ces architectures post-catastrophe opposées sont accompagnées de visions du corps post-catastrophe. Ainsi, nous analyserons la manière dont nos deux camps vont instrumentaliser une des figures clefs des avant-gardes modernes : celle l’Homme nouveau. Ces corps « évolués » vont finalement nous permettre d’inscrire ces rêves sociaux, politiques, architecturaux et radicaux, dans la lignée des débats contemporains sur la place de l’Homme dans le réseau de la vie, polarisés ces jours-ci autours des concepts de l’Anthropocène de Paul Crutzen, du Capitalocène de Jason Moore et du Chthulucène de Donna Haraway. / Have you ever felt that the world was coming to an end? Do you know what one of your first instincts would be? This thesis looks closer at one of our most natural reactions: the immersion in storytelling. Leaving from Francesca Polletta’s research in the field of the sociology of social mouvements, the following pages are based on the observation that in times of catastrophe — may it be due to war, global warming or many other causes — storytelling plays an important part in the constitution and organisation of new collective actors that demand and create change, potentially contributing to an exit from crisis. If all forms of storytelling can help us act together, this thesis focuses on the political charge of a particular genre, that of science-fiction. Even if the academic world is barely starting to acknowledge the potential of this form of para-literature, the vast array of utopian, counter-utopian, dystopian, even apocatopian projets that dot the history of architecture shows that architects have long understood the subversive potential of this genre.Politicised architectural fictions will be our playing field: the corpus is made up of stories born on the realms of disaster at the dawn and dusk of the XXth century, as defined by the historian Eric Hobsbawm — starting in 1914 with the beginning of World War I and ending in 1992-1995 and the long siege of Sarajevo. These two temporal points are connected by stories and projets that belong to the same political family, that of anarchism — namely it’s pacifist branches — as it is understood and translated into architecture by Bruno Taut (The Glass Pavilion, Alpine Architecture, The Dissolution of the City, The Worldbuilder, The Galoches of Fortune, Mimari Bilgisi) and Lebbeus Woods (Underground Berlin, Zagreb Free-Zone, War and Architecture). Their anarchitectures are accompanied by the works of writers — representatives of the dissident and activist facet of science-fiction and fantasy — such as Paul Scheerbart (Rakkóx, the billionaire, Lésabendio. An asteroid novel, Malvu. The Helmsman, Glass Architecture, The Gray Cloth), J. G. Ballard (High-Rise), Gheorghe Săsărman (Squaring the Circle), as well as China Miéville (The City & The City). This overview will allow us to gauge through an architectural lens at the history and the transformations of the genre of science-fiction throughout the XXth century, as well as architecture’s changing attitudes in relation to conflict.Nonetheless, the subject is not isolated from it’s historical context. Shaped as a confrontation between two radically different visions of the future, the political positioning of our protagonists will face the fictions of rival groups, especially the pro-conflit stance of F. T. Marinetti’s futurism (Mafarka, the futurist) as well as that of the official architect of his mouvement, Antonio Sant’Elia (La Città Nuova). These fictions of a post-catastrophe architecture will translate themselves also into post-catastrophe bodies, since — in the good tradition of the modern avant-gardes — we will also reflect on the nature of the New Man they put forth. These “evolved” bodies will allow us to inscribe the radical, social, political and architectural dreams we study, witin larger contemporary debates on the place of Man in the network of life, polarised these days around the concepts of the Anthropocene of Paul Crutzen, the Capitalocene of Jason Moore and the Chthulucene of Donna Haraway.

Thesis (Ph. D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2009. / Cataloged from PDF version of thesis. / Includes bibliographical references (p. 169-174). / Internal tides are internal waves of tidal period generated by tidal currents flowing over submarine topography. Tall ridges that are nominally two-dimensional (2-D) are sites of particularly strong generation. The subsequent dissipation of internal tides contributes to ocean mixing, thereby playing an important role in the circulation of the ocean. Strong internal tides can also evolve into internal wave solitons, which affect acoustic communication, offshore structures and submarine navigation. This thesis addresses the generation of internal tides by tall submarine ridges using a combined analytical and experimental approach. The first part of the thesis is an experimental investigation of a pre-existing Green function formulation for internal tide generation by a tall symmetric ridge in a uniform density stratification. A modal decomposition technique was developed to characterize the structure of the experimental wave fields generated by 2D model topographies in a specially configured wave tank. The theory accurately predicts the low mode structure of internal tides, and reasonably predicts the conversion rate of internal tides in finite tidal excursion regimes, for which the emergence of non-linearities was notable in the laboratory. In the second part of the thesis, the Green function method is advanced for asymmetric and multiple ridges in weakly non-uniform stratifications akin to realistic ocean situations. / (cont.) A preliminary investigation in uniform stratification with canonical asymmetric and double ridges reveals asymmetry in the internal tide that can be very sensitive to the geometric configuration. This approach is then used with realistic topography and stratification data to predict the internal tide generated by the ridges at Hawaii and at the Luzon Strait. Despite the assumption of two-dimensionality, there is remarkably good agreement between field data, simulations and the new theory for the magnitude, asymmetry and modal content of the internal tide at these sites. The final part of the thesis investigates the possibility of internal wave attractors in the valley of double-ridge configurations. A one-dimensional map is developed to identify the existence and stability of attractors as a function of the ridge geometry. The Green function method is further advanced to include a viscous correction to balance energy focusing and dissipation along an attracting orbit of internal wave rays, and very good agreement is obtained between experiment and theory, even in the presence of an attractor. / by Paula Echeverri Mondragón. / Ph.D.

Thesis (S.M.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2005. / Includes bibliographical references (leaves 96-98). / The changing state of warfare has driven the US Navy's area of operations closer to shore into littoral coastal waters. Mine Warfare has been proven as an extremely effective means of battlespace control in these waters. Mines can be inexpensively mass produced and rapidly deployed over large areas. The most common type of mine in use is the bottom placed mine, an object with simple geometry that sits on the seafloor. These mines often exhibit scour induced burial below the seafloor, making detection through traditional mine hunting methods difficult or impossible, while the mines themselves remain lethal. The Office of Naval Research (ONR) has developed a computer model that predicts the extent of mine burial to aid mine hunting and mine clearing operations. Investigations under ONR's Mine Burial Program are presently being conducted to calibrate and validate this model. This thesis uses data from the deployment of an acoustically instrumented model mine near the Martha's Vineyard Coastal Observatory in part of a larger, 16 total object investigation. A 2-axis pencil beam sonar was deployed concurrently with the mine to obtain microbathymetric measurements of the scour pit development and the progression of mine burial. Data correction techniques to correct for beam pattern induced bathymetry errors and a transformed coordinate system are detailed within. / (cont.) An analysis of scour pit dimensions includes scour depth, area, and volume as well as a look into percent burial by depth as a characteristic measurement important for operational mine hunting. The progression of mine burial is related to the wave climate, unsteady flow hydrodynamic forcing, and bed-load transport. The analysis examines the relative roles of these mechanisms in the scour-infill-bury process. / by Brendan Reed Gotowka. / S.M.

Thesis (S.M.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2005. / Includes bibliographical references (leaves 124-125). / A detailed study was conducted to prove the concept of an iterative approach to single transponder navigation for REMUS Autonomous Underwater Vehicles (AUVs). Although the concept of navigation with one acoustic beacon is not new, the objective was to develop a computer algorithm that could eventually be integrated into the REMUS architecture. This approach uses a least squares fit routine coupled with restrictive geometry and simulated annealing vice Kalman filtering and state vectors. In addition, to provide maximum flexibility, the single transponder was located on a GPS equipped surface ship that was free to move instead of the more common single bottom mounted beacon. Using only a series of spread spectrum ranges logged with time stamp, REMUS standard vehicle data, and reasonable initial conditions, the position at a later time was derived with a figure of merit fit score. Initial investigation was conducted using a noise model developed to simulate the errors suspected with the REMUS sensor suite. Results of this effort were applied to a small at sea test in 3,300 meters with the REMUS 6000 deep water AUV. A more detailed test was executed in Buzzard's Bay, Massachusetts, in 20 meters of water with a REMUS 100 AUV focusing on navigation in a typical search box. / (cont.) While deep water data was too sparse to reveal conclusive results, the Buzzard's Bay work strongly supports the premise that an iterative algorithm can reliably integrate REMUS logged data and an accurate time sequence of ranges to provide position fixes through simple least squares fitting. Ten navigational legs up to 1500 meters in length showed that over 90% of the radial position error can be removed from an AUV's position estimate using the STRONG algorithm vice dead reckon navigation with a magnetic compass and Doppler Velocity Log alone (DVL). / by J. Carl Hartsfield, Jr. / S.M.

Thesis (Ph. D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Ocean Engineering; and the Woods Hole Oceanographic Institution), 2005. / Bibliography: p. 119-129. / Obtaining accurate and repeatable navigation for robotic vehicles in the deep ocean is difficult and consequently a limiting factor when constructing vehicle-based bathymetric maps. This thesis presents a methodology to produce self-consistent maps and simultaneously improve vehicle position estimation by exploiting accurate local navigation and utilizing terrain relative Measurements. It is common for errors in the vehicle position estimate to far exceed the errors associated with the acoustic range sensor. This disparity creates inconsistency when an area is imaged multiple times and causes artifacts that distort map integrity. Our technique utilizes small terrain "sub-maps" that can be pairwise registered and used to additionally constrain the vehicle position estimates in accordance with actual bottom topography. A delayed state Kalman filter is used to incorporate these sub-map registrations as relative position measurements between previously visited vehicle locations. The archiving of previous positions in a filter state vector allows for continual adjustment of the sub-map locations. The terrain registration is accomplished using a two dimensional correlation and a six degree of freedom point cloud alignment method tailored for bathymetric data. / (cont.) The complete bathymetric map is then created from the union of all sub-maps that have been aligned in a consistent manner. Experimental results from the fully automated processing of a multibeamn survey over the TAG hydrothermal structure at the Mid-Atlantic ridge are presented to validate the proposed method. / by Christopher N. Roman. / Ph.D.

Thesis (Ph. D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Ocean Engineering; and the Woods Hole Oceanographic Institution), 2005. / This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. / Bibliography: leaves 292-301. / This thesis investigates the application of acoustic measurements in the deep and shallow ocean to infer the sound velocity profile (svp) in the seabed. For the deep water ocean, an exact method based on the Gelfand-Levitan integral equation is evaluated. The input data is the complex plane-wave refection coefficient estimated from measurements of acoustic pressure in water. We apply the method to experimental data and estimate both the refection coefficient and the seabed svp. A rigorous inversion scheme is hence applied in a realistic problem. For the shallow ocean, an inverse eigenvalue technique is developed. The input data are the eigenvalues associated with propagating modes, measured as a function of source receiver range. We investigate the estimation of eigenvalues from acoustic fields measured in laterally varying environments. We also investigate the errors associated with estimating varying modal eigenvalues, analogous to the estimation of time-varying frequencies in multicomponent signals, using time-varying autoregressive (TVAR) methods. We propose and analyze two AR sequential estimators, one for model coefficients, another for the zeros of the AR characteristic polynomial. / (cont.) The decimation of the pressure field defined in a discrete range grid is analyzed as a tool to improve AR estimation. The nonlinear eigenvalue inverse problem of estimating the svp from a sequence of eigenvalues is solved by iterating linearized approximations. The solution to the inverse problem is proposed in the form of a Kalman filter. The resolution and variance of the eigenvalue inverse problem are analyzed in terms of the Cramer-Rao lower bound and the Backus{Gilbert (BG) resolution theory. BG theory is applied to the design of shallow-water experiments. A method is developed to compensate for the Doppler deviation observed in experiments with moving sources. / by Luiz Alberto Lopes de Souza. / Ph.D.

Thesis (Ph. D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2007. / Includes bibliographical references (p. 177-186). / Observations of current velocity, temperature, salinity and pressure from a 2-year moored array deployment and four hydrographic cruises conducted by the United States Southern Ocean GLOBEC program on the western Antarctic Peninsula continental shelf are used to characterize the ocean circulation and its connection to fresh water and heat fluxes on the shelf. Mean velocities on the shelf are of the order of 5 cm/s or less. Tidal motions are dominated by the M2 and S2 semi-diurnal tides and the 01 and K1 diurnal tides, although the tidal velocities are typically less than 2 cm/s. Near-inertial motions are relatively large, with current velocities as high as 26 cm/s. It is shown that Marguerite Trough, a large bathymetric feature connecting the shelf-break to Marguerite Bay, plays a critical role in determining the circulation. The mean flow is strongly steered in the along-slope direction, and the tidal currents also show increasing current polarization at depth in Marguerite Trough. At time-scales of 5 to 20 days, the observations show bottom-intensified motion in Marguerite Trough consistent with bottom-trapped topographic Rossby waves. / (cont.) The subtidal circulation in the trough has a significant wind-driven component in Marguerite Trough, with downwelling-favorable winds forcing cross-shelf flow on the northern side of the trough and along the shore on the outer shelf. Upwelling-favorable winds force roughly the opposite circulation. The cyclonic circulation on the trough helps advect blobs of salty, warm and nutrient-rich water across the shelf. These intrusions are small (;4 km) and frequent (4 events/month). Also, the Antarctic Peninsula Coastal Current (APCC), a coastal buoyant current which is described for the first time here. The APCC is a seasonal current which is only present during the ice-free season and is forced by freshwater fluxes associated with large glacier melt and precipitation rates in the region. / by Carlos F. Moffat Varas. / Ph.D.

Thesis (S.M.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2009. / Cataloged from PDF version of thesis. / Includes bibliographical references (p. 111-112). / Over the past 20 years, underwater vehicle technology has undergone drastic improvements, and vehicles are quickly gaining popularity as a tool for numerous oceanographic tasks. Systems used on the vehicle to alter buoyancy, or variable buoyancy (VB) systems, have seen only minor improvements during the same time period. Though current VB systems are extremely robust, their lack of performance has become a hinderance to the advancement of vehicle capabilities. This thesis first explores the current status of VB systems, then creates a model of each system to determine performance. Second, in order to quantitatively compare fundamentally different VB systems, two metrics, [beta]m and [beta]vol, are developed and applied to current systems. By determining the ratio of performance to size, these metrics give engineers a tool to aid VB system development. Finally, the fundamental challenges in developing more advanced VB systems are explored, and a couple of technologies are investigated for their potential use in new systems. / by Harold Franklin Jensen III. / S.M.

Thesis (Ph. D.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 1998. / Includes bibliographical references. / by Youngsook Huh. / Ph.D.