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Corrección de una maloclusión clase III de Angle en paciente adulto con la técnica Multiloop Edgewise Archwire con un control post tratamiento de 1 año / Correction of a Class III Angle malocclusion in an adult patient with the Edgewise Archwire Multiloop technique with a 1-year post-treatment controlValdez Galdos , Mariana 16 October 2019 (has links)
El tratamiento de compensación o camuflaje de las Maloclusiones de Clase III, estuvo orientado tradicionalmente a la extracción de primeras premolares inferiores, distalización de caninos y lingualización de incisivos inferiores con la finalidad de obtener un overbite y overjet aceptables. El propósito de este reporte es describir el diagnóstico y plan de tratamiento de una maloclusión clase III, en un paciente adulto, soportado por una revisión bibliográfica. El caso fue tratado con el sistema Multiloop Edgewise Arch Wire (MEAW) y se realizaron exodoncias de terceras molares inferiores. El sistema MEAW utiliza arcos con dobleces colocados en los espacios dentarios interproximales, desde la parte distal de los incisivos laterales hasta la última pieza en el sector posterior, al cual se le realizan ciertas activaciones según la maloclusión. Podemos concluir que con este sistema podemos compensar los casos de Clase III, mediante la reconstrucción del plano oclusal, evitando así el realizar exodoncias de premolares inferiores controlando el efecto de lingualización de los incisivos inferiores para generar correcto overjet y overbite y relaciones caninas Clase I. / The treatment of compensation or camouflage of Class III malocclusions was traditionally oriented to the extraction of first lower premolars, canine distalization and lingualization of lower incisors in order to obtain an acceptable overbite and overjet.
The purpose of this report is to describe the diagnosis and treatment plan of a Class III malocclusion in an adult patient, supported by a literature review. The case was treated with the Multiloop Edgewise Arch Wire (MEAW) system and extraction of lower third molars. The MEAW system uses arches with Loops placed in the interproximal dental spaces, from the distal part of the lateral incisors to the last piece in the posterior sector, to which certain activations are performed according to the malocclusion. We can conclude that with this system we can compensate Class III cases, through the reconstruction of the occlusal plane, avoiding extraction of lower premolars controlling the lingualization effect of the lower incisors to generate correct overjet and overbite and canine relations Class I. / Trabajo académico
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Leurrage et dissimulation en reconnaissance faciale : analyses et contre attaques / Spoofing and disguise variations in face recognitionKose, Neslihan 14 April 2014 (has links)
La Reconnaissance automatique des personnes est devenue un sujet de plus en plus important avec l'augmentation constante des besoins en sécurité. De nombreux systèmes biométriques existent. Ils utilisent différentes caractéristiques humaines. Parmi tous les traits biométriques, la reconnaissance faciale inclut des aspects positifs en termes d'accessibilité et de fiabilité. Dans cette thèse, deux défis en reconnaissance faciales sont étudiés. Le premier est le leurrage. Le leurrage en reconnaissance faciale est présenté. Des contre-mesures permettant d'améliorer les systèmes actuels sont proposés. A cet effet, les attaques basées sur des photographies 2D ou des masques 3D sont analysées. Le second défi exploré dans cette thèse est lié aux variations dues à des altérations du visage (i.e. chirurgie plastique), maquillage et accessoires pour le visage (e.g. occultations par la présence de lunettes). L'impact de ces variations en reconnaissance de visage est étudiée séparément. Ensuite, des techniques robustes contre les variations de camouflage sont proposées. / Human recognition has become an important topic as the need and investments for security applications grow continuously. Numerous biometric systems exist which utilize various human characteristics. Among all biometrics traits, face recognition is advantageous in terms of accessibility and reliability. In the thesis, two challenges in face recognition are analyzed. The first one is face spoofing. Spoofing in face recognition is explained together with the countermeasure techniques that are proposed for the protection of face recognition systems against spoofing attacks. For this purpose, both 2D photograph and 3D mask attacks are analyzed. The second challenge explored in the thesis is disguise variations, which are due to facial alterations, facial makeup and facial accessories (occlusions). The impact of these disguise variations on face recognition is explored, separately. Then, techniques which are robust against disguise variations are proposed.
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Factors influencing the outcomes of class II camouflage treatmentPrestwich, Tyler Carl 01 May 2014 (has links)
Class II malocclusion in non-growing individuals is treated in one of two ways - masking or surgery. If the dentoskeletal discrepancy is great enough, masking usually involves extraction of two maxillary premolars and subsequent incisor retraction and closure of overjet. This is the option of choice for patients without profile concerns, or who have medical or financial concerns. However, this treatment modality can sometimes result in less-than-ideal results. In the present study, we sought to understand what factors may influence the outcomes of this type of treatment. 65 subjects were included in this study. The total sample was divided into good and compromised finish categories based on objective criteria of overbite, overjet, and AP position of the maxillary canines. The good finish group was further subdivided into two groups, acceptable and excellent finishes. Several variables were measured on each subject's initial and final casts and compared between groups to determine whether any were associated with a particular finish group. At the initial time point, a mesial displacement of the maxillary right first molar by 3.35mm or less was found to correspond significantly to an excellent finish. This may indicate that if an individual presents with molars that are Class II by 3 mm or less, the prognosis is better than if that same individual had a greater Class II discrepancy. None of the other variables for the initial time point were found to be significantly different, suggesting that treatment mechanics, rather than a pre-existing occlusal factor, plays a predominant role in treatment outcome. At the final time point, we found that the maxillary arch length and tooth-size arch-length discrepancy were greater in the compromised group, indicative of excess spacing in this group at the end of treatment. Based on the other findings of this study, we attribute this result to differences in the mechanics used by individual practitioners. This hypothesis is further supported by our findings that none of the variables measuring patient compliance were found to be different between the good and compromised group. In the future, studies examining the particular mechanics used, and compliance where applicable, in this population will yield valuable insights into this area of patient research.
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Evolution of colour variation and species richness in agamid lizards /Stuart-Fox, Devi M. January 2002 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2003. / Includes bibliographical references.
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Evolutionary and ecological dynamics of aposematism and mimicry in poison frogsDarst, Catherine Rachel, 1978- 10 August 2011 (has links)
Not available / text
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Control System for Active CamouflageTideman, Erik January 2015 (has links)
Implementation of a control system for an active camouflage system based on thermal elements and LED technology.
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Algal preferences in the masking behaviour of the spider crab, Notomithrax ursus : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Ecology, University of Canterbury /Ertel, Catherine M. January 2008 (has links)
Thesis (M. Sc.)--University of Canterbury, 2008. / Typescript (photocopy). Includes bibliographical references (leaves 85-86). Also available via the World Wide.
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Evolutionary and ecological dynamics of aposematism and mimicry in poison frogsDarst, Catherine Rachel, January 1900 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.
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To Write ArchitectureAndreasson, Karin January 2018 (has links)
Why does literature make me feel more than architecture does? Can the tools of a writer be used in creating architecture? How come stories of magical realism sometimes tell more about real life than realistic ones does? Through analysing literature I have found that surprise, repetition, contradiction and tempo are cornerstones for a good reading experience. By embodying these I have attempted to make spaces, sequences and details that are evoking. This proposal is a library of fiction, located in the magic meadows between the pillars of three intersecting bridges.
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Physiological and psychological aspects of flatfish camouflage.Saidel, William Mark January 1978 (has links)
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Biology. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE. / Vita. / Bibliography : leaves 137-151. / Ph.D.
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