Search results for "tesis"
showing 10 items of 145 documents
Oxamato/Oxamidato-Based Multifunctional Porous Coordination Polymers
2017
El principal objetivo de esta presente Tesis concierne el diseño y la síntesis de materiales multifuncionales, una línea de investigación de creciente interés dentro del campo de la Química de Materiales. Para llevar a cabo dicho objetivo, hemos aprovechado los avances que ha experimentado la química metalosupramolecular en los últimos años. Concretamente pretendemos hacer uso de los métodos de auto-ensamblaje programado basado en las diferentes preferencias que muestran los iones metálicos en sus entornos de coordinación y en la funcionalización de ligandos orgánicos. Para ello, hemos sintetizado ligandos derivados de grupos oxamato y oxamidato, que actuarán como moléculas de partida para …
Comparative In Vitro Study of the Bond Strength of Composite to Carbon Fiber Versus Ceramic to Cobalt–Chromium Alloys Frameworks for Fixed Dental Pro…
2020
Purpose: The aim of this comparative in vitro study was to assess the bond strength and mechanical failure of carbon-fiber-reinforced composites against cobalt&ndash
Regeneración ósea guiada simultánea en implantes cigomáticos con una aproximación exteriorizada en una atrofia maxilar avanzada
2020
espanolSe presenta un caso clinico en el que se rehabilita a una paciente con maxilar superior atrofico mediante una combinacion de implantes cigomaticos, colocados mediante una aproximacion exteriorizada, e implantes anteriores convencionales palatinizados. Se realizo un procedimiento de regeneracion osea guiada alrededor de los implantes cigomaticos para obtener un mayor grosor de la cortical vestibular y palatina alrededor de los implantes del maxilar superior y mejorar el pronostico. A un ano de la carga protesica, el hueso periimplantario se mantiene estable. EnglishA clinical case is presented in which a patient with atrophic upper jaw is rehabilitated by a combination of zygomatic im…
Rehabilitation of atrophic maxilla: a review of 101 zygomatic implants
2008
Introduction: Zygomatic implants are a good rehabilitation alternative for upper maxilla with severe bone reabsorption. These implants reduce the need for onlay-type bone grafting in the posterior sectors and for maxillary sinus lift procedures - limiting the use of bone grafts to the anterior zone of the upper jaw in those cases where grafting is considered necessary. Objective: To evaluate the survival of 101 zygomatic implants placed in upper maxilla presenting important bone reabsorption, with a follow-up of 1-72 months. Patients and methods: A retrospective study was made of 101 Zygoma® implants (Nobel Biocare, Göteborg, Sweden) placed in 54 patients with totally edentulous and atrophi…
Retrieval and assessment of CO2 uptake by mediterranean ecosystems using remote sensing and meteorological data
2014
Reseña de tesis doctoral
A severe case of Israeli spotted fever with pleural effusion in Italy
2021
Abstract Background The most common Italian rickettsiosis is Mediterranean Spotted Fever (MSF). MSF is commonly associated with a symptom triad consisting of fever, cutaneous rash, and inoculation eschar. The rash is usually maculopapular but, especially in severe presentations, may be petechial. Other typical findings are arthromyalgia and headache. Herein, we describe for the first time an unusual case of Israeli spotted fever (ISF) associated with interstitial pneumonia and pleural effusion in which R. conorii subsp. israelensis was identified by molecular methods in the blood, as well as in the pleural fluid. Case presentation A 72-year-old male presented with a 10-day history of remitt…
Movement evaluation of overerupted upper molars with absolute anchorage: an in-vitro study.
2010
Introduction: The overeruption of upper molars due to the premature loss of antagonist teeth can be treated with the help of miniscrews. The aim of this study was to evaluate the movement of a typodont molar according to the biomechanical approach used with miniscrews. Study design: The study was conducted with four plaster models filled with typodont wax. In each model we used one absolute anchorage on the palatal side and another on the buccal side in different positions, thus generating four different biomechanical systems. A force of 150 g was applied to each side of the resin tooth. Periapical radiographs were taken preintrusion and immediately after completion of the intrusion. Photog…
Bimaxillary simultaneous immediate loading of full-arch restorations : a case series
2017
Aim To describe a bimaxillary simultaneous immediate loading protocol with full-arch implant-supported fixed prostheses. Material and Methods A prospective case series of 8 patients who required full-arch rehabilitation was conducted. The main inclusion criteria were patients with teeth that required extraction. At least 1 molar per arch was temporarily employed to stabilize the surgical template and the provisional prosthesis during intraoral relining. Results Two upper implants failed in 1 patient. Structural fracture was registered in 3 patients, around 3 months after loading. All of them had bruxism. Three esthetic complications were registered: midline deviation, canting of the oclusal…
Los museos etnológicos como instrumentos de formación ciudadana para hacer frente a los problemas que la humanidad tiene planteados
2017
Desde hace algunas décadas se viene llamando la atención desde diferentes ámbitos acerca de la insostenible situación de auténtica emergencia socioambiental planetaria en la que estamos inmersos y de la necesidad de contribuir a la formación de una ciudadanía consciente de dicha situación y preparada para participar en la toma de decisiones fundamentadas para hacer frente a la misma. Esta investigación responde a los llamamientos por Naciones Unidas a los educadores de todos los niveles, áreas y contextos, tanto de la educación formal como de la no reglada, con ese propósito de convertir la educación para la Sostenibilidad en una componente fundamental de la formación ciudadana. El objeto d…
Deformable object segmentation in ultra-sound images
2013
Breast cancer is the second most common type of cancer being the leading cause of cancer death among females both in western and in economically developing countries. Medical imaging is key for early detection, diagnosis and treatment follow-up. Despite Digital Mammography (DM) remains the reference imaging modality, Ultra-Sound (US) imaging has proven to be a successful adjunct image modality for breast cancer screening, specially as a consequence of the discriminative capabilities that US offers for differentiating between solid lesions that are benign or malignant. Despite US usability,US suffers inconveniences due to its natural noise that compromises the diagnosis capabilities of radio…