Zugl.: München, Univ., Magisterarbeit, 2007

Tes.--Departamento de historia--Universidad de Indiana, 1982.

El propósito del presente estudio fue evaluar la ubicación y distancia de las foveolas palatinas al área de la línea de vibración en los pacientes de la facultad de odontología de la UNMSM, para un mejor manejo clínico en el tratamiento de los pacientes edéntulos totales y edéntulos parciales. La muestra fue de 111 pacientes que asistieron a la clínica odontológica de la UNMSM. Se marcaron en boca dos puntos, las foveolas palatinas y el área de línea de vibración. En seguida se tomaron impresiones con alginato, en cada paciente. Se realizaron las mediciones correspondientes, se vaciaron las impresiones con yeso tipo IV y se volvieron a tomar las medidas con un instrumental de alta precisión conocido como vernier digital. En el análisis de resultados se encontró que el 85% de los sujetos estudiados presentan foveolas palatinas. El 99% de foveolas palatinas se ubican detrás del área de línea de vibración. También que la distancia entre las foveolas palatinas al área de línea de vibración, en la impresión, presenta una media de 2.4454 mm; en el modelo de yeso se observó una media de 2.4232 mm; con una correlación de Pearson positiva (r=0.924). Coincidiendo con Dragutina S, et. al; y Freitas k, et. al. En la ubicación más no en la distancia. Se puede concluir que las foveolas palatinas pueden a ser usadas como referencia anatómica para el diseño y delimitación del borde posterior de la prótesis total y el diseño del conector mayor en la prótesis parcial removible. Palabras clave: Paladar blando, anatomía regional, límites permisibles, maxilar superior desdentado / --- The purpose of this study was to evaluate the location and distance from the area palatal foveolae line vibration patients dental school of San Marcos, for better clinical management in the treatment of edentulous and partially edentulous patients. The sample consisted of 111 patients who attended the dental clinic of San Marcos. Two points, the palatal area foveolae and vibration line marked on the palate. Then alginate impressions were taken in each patient. The corresponding measurements were performed, the type IV plaster impressions were emptied and returned to take measures with high precision instruments known as digital vernier. In the analysis of results it found that 85% of subjects studied show foveolae palate. 99% of palatal foveolae area located behind the line of vibration. Also the distance between the area foveolae palatal line vibration in printing, has an average of 2.4454 mm; in the plaster model a mean 2.4232 mm observed; with a positive Pearson correlation (r = 0.924). Coinciding with Dragutina S, et. al; and k Freitas, et. al. In the location but not in the distance. It can be concluded that the palatal foveolae can be used as an anatomical reference for the design and definition of the rear edge of total prostheses and major connector design in the removable partial denture. Key words: soft palate, regional anatomy, maxilla, / Tesis

Not available / text

Hamburg, Universiẗat, Diss., 1999.

Ce travail de recherche porte sur la caractérisation de la réponse mécanique du marbre de Macael sous compression uniaxiale. L objectif à long terme est l intégration de ce marbre dans le domaine de la construction en tant que matériau de soutien. Comme tout matériau hétérogène, le comportement mécanique du marbre calcique est directement lié à la microstructure. Une corrélation entre les événements métamorphiques et la microstructure induite est décrite dans ce travail. L étude géologique associée aux analyses d images, aux études de la texture cristallographique et aux analyses chimiques d échantillons de marbre, a permis de définir les caractéristiques du Volume Elémentaire Représentatif du Blanco de Macael. Pour la caractérisation du comportement sous compression uniaxiale plusieurs essais ont été effectués. Préalablement, une recherche expérimentale sur l influence des conditions d essais sur la réponse mécanique a été accomplie. Enfin, en alliant les mesures acoustiques, les mesures de déformations et les observations des échantillons testés à différentes échelles¡; l initiation, la propagation et la coalescence des mécanismes locaux d endommagement menant à la rupture macroscopique fragile, ont été identifiées. Les essais de compression uniaxiale dans diverses directions, ont démontré un comportement anisotrope du marbre. Trois des caractéristiques de la microstructure régissant cette réponse mécanique ont été distinguées (la morphologie des grains, l orientation cristallographique et les inclusions minérales). Les résultats de ces travaux constituent la base de la conception d un outil numérique de simulation du comportement, en cours de développement. / The research work focuses on the characterization of the mechanical response of Macael s marble under uniaxial compression. The long-term objective is the integration of marble in the construction domain as a support material. Like all heterogeneous material, the mechanical behaviour of calcic marbles is directly linked to the microstructure. A correlation between metamorphic events and the induced microstructure is described in this work. The geological study associated with images analysis, studies of the crystallographic texture and chemical analysis of marble samples, permit to define the characteristics of a Representative Elementary Volume of Blanco de Macael . To characterize the behaviour under uniaxial compression, several tests were carried out. Prior, an experimental research on the influence of test conditions on the mechanical response has been accomplished. Finally, combining acoustic measures, displacement measures and observations of the samples tested at various scales; the initiation, the propagation, and the coalescence of the local damage mechanisms leading to the macroscopic fragile rupture, have been identified. Tests of uniaxial compression in various directions, have demonstrated an anisotropic behaviour of the marble. Three characteristics of the microstructure governing this mechanical response were distinguished (grains morphology, crystal orientation and mineral inclusions). The results of this work constitute the basis for the conception of a numerical tool. The development of the simulation is in progress.

El presente trabajo trata sobre la posibilidad de aplicación de los agregados calcáreos de la provincia de Córdoba para hormigón elaborado con cemento blanco. Se analiza la factibilidad técnica y económica de los yacimientos y canteras de las calizas del Cordón Oriental, Cordón Central y Distrito Occidental de las Sierras de Córdoba. Mediante los ensayos de caracterización realizados de acuerdo a las normas IRAM se analizan las propiedades de los agregados calcáreos blancos de las principales canteras. Finalmente se selecciona el material de una de las plantas de agregados para realizar las dosificaciones con cemento portland blanco y verificar las propiedades del hormigón resultante. Se comprueba que los agregados calcáreos de la provincia de Córdoba por su color, composición petrográfica y propiedades físicas son aptos para su utilización en el hormigón elaborado con cemento blanco. / This paper addresses the possibility of using limestone aggregates from Córdoba province, Argentina, in white concrete. The technical and economic feasibility of limestone deposits and quarries from the eastern, central and western ridge of Córdobas mountains is analyzed. Through characterization tests in accordance with IRAM standards, the properties of white limestone aggregates from the main quarries are analyzed. Furthermore, the material from one of the aggregate plants is selected to be added to white portland cement and check the properties of the resulting concrete. It is demonstrated that owing to their color, petrographic composition and physical properties, limestone aggregates from Córdoba province are suitable to be used in concrete made with white portland cement.

Archaeologists have identified many prehistoric structures affiliated with the Manteño culture (500 CE to 1532 CE) of coastal Ecuador, but the function of those constructions is rarely understood. As part of an ongoing project by Florida Atlantic University to explore the function of these buildings, I conducted systematic soil phosphate testing in and around two archaeological structures and, for ethnoarchaeological comparison, four contemporary households. The two prehistoric structures are located 200 meters from each other and on two different river terraces within the same river valley. They are part of a larger site (C4-084). I found clear spatial patterning in phosphate concentrations in and around the archaeological structures. The concentrations were higher inside the structures, while outside they decreased with distance from the structure. Statistical testing and spatial analysis have suggested the two structures were used for different purposes. / Includes bibliography. / Thesis (M.A.)--Florida Atlantic University, 2014. / FAU Electronic Theses and Dissertations Collection

xvii, 106 p. : ill., maps. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number. / This dissertation establishes the age, depositional environment, composition, and climatic conditions for the Cape Blanco flora. The paleotemperature estimated by the Cape Blanco flora, the Temblor flora of California, and the Seldovia flora of Alaska are then compared with sea surface temperatures estimated from oxygen isotope analysis of benthic foraminifera. The unconformity-bound shallow marine sandstone of Floras Lake includes a redeposited tuff bed which contains fossil leaves at Cape Blanco. An 40 Ar/ 39 Ar age of 18.26 ± 0.86 Ma is presented for the tuff as well as a paleomagnetic stratigraphy of the sandstone. Sedimentary structures of the tuff bed are evidence that the tuff was deposited at or just above the strand line. The depth of tuff deposition was shallower than the adjacent marine sands, and this short-lived shoaling may have been a result of increased sediment supply. The fossil flora was an oak forest with numerous species of Fagaceae. Additional components include lanceolate Salicaceae leaves, entire margined Lauraceae, fragmentary Betulaceae, and lobed Platanaceae. Coniferous debris, charcoal, Equisetales, and Typhaceae forms are also figured. Ten leaf forms could not be confidently assigned to established names but are described, figured, and called angiosperm forms 1-10. In total 44 unique forms are identified. The size and margin type of the dicot specimens are quantified, and by comparison with known modern floras, a former mean annual precipitation of 201 (+86, -61) cm and a former mean annual temperature of 18.26 ± 2.6°C are estimated. The paleotemperature of the ∼17.5 Ma Seldovia Flora and the ∼17.5 Ma Temblor Flora are estimated using the same method, establishing a ∼0.7°C per degree of latitude temperature gradient for the northern hemisphere temperate zone. The leaf based gradient is steeper than the sea surface temperature gradient, of ∼0.26°C per degree of latitude as estimated from oxygen isotopic composition of foraminifera collected from ocean sediment cores. Both fossil leaf and isotope methods suggest that the early Miocene was ∼5°C warmer than today. This thesis includes unpublished co-authored material. / Committee in charge: Gregory Retallack, Chairperson, Geological Sciences; Rebecca Dorsey, Member, Geological Sciences; Joshua Roering, Member, Geological Sciences; Barbara Roy, Outside Member, Biology

Se analiza la variabilidad morfológica de Jatropha curcas en 20 poblaciones cultivadas en las regiones de Lambayeque, Piura, Tumbes, San Martín y Ucayali. Se muestrearon 123 individuos de 2-4 cm de dap; se registraron ocho parámetros morfométricos como: altura total de la planta, número de ramas de la planta, número de lóbulos del limbo, longitud del limbo, del pecíolo, del fruto, largo y ancho de la semilla. Los parámetros fueron analizados mediante la prueba de comparaciones de medias ANOVA (p menor 0.05); a los que mostraron diferencias significativas se realiza el análisis de componentes principales. Existen diferencias significativas de seis parámetros entre las poblaciones; respecto a la altura total de la planta, el mayor valor se registra para la población de La Libertad, y el menor valor para la población de San Isidro; respecto a la cantidad de ramas, el mayor valor se registra para Olmos, y el menor valor para Chazuta; respecto a la longitud del limbo y el pecíolo, el mayor valor se registra para Tambo Grande, y el menor valor para Olmos; respecto a la cantidad de lóbulos, el mayor valor se registra para Tambo Grande, y el menor valor para Curimaná; respecto a la longitud del fruto, el mayor valor se registra para la población de Oidor y el menor valor en la población Yarinacocha. Los resultados del Análisis de Componentes Principales mostraron que el 66.9% de la varianza correspondió a los 2 primeros componentes. No se observaron grupos claramente definidos; sin embargo, las poblaciones de la región costera formaron grupos distintos con respecto a las poblaciones de la región amazónica. Palabras Claves: piñón blanco, morfometría, análisis de varianza, análisis de componentes principales. / --- We analyzed the morphological variation of Jatropha curcas in 20 populations grown in the regions of Lambayeque, Piura, Tumbes, San Martin and Ucayali. A total of 123 individuals with DBH 2-4 cm were sampled, eight morphometric parameters were evaluated such as total plant height, number of branches of the plant, number of lobes of the lamina, length of blade, petiole, fruit and seed. The parameters were analyzed by Paired t test ANOVA (p less than 0.05), those with significant differences were performed principal components analysis. There are significant differences among the populations in seven parameters; regarding the total plant height, the highest value recorded was in La Libertad, and the lowest value for the population of San Isidro; regarding the number of branches, the highest value recorded was in Olmos, and the lowest value for Chazuta; regarding the length of the blade and petiole, the highest value recorded was found in Tambo Grande, and the lowest value in Olmos, regarding the number of lobes, the highest value recorded was in Tambo Grande, and the lowest value in Curimaná; regarding the length of the fruit, the highest value recorded was found in Oidor and the lowest in the population Yarinacocha. The Principal Component Analysis showed that 70.9% of the variance corresponds to the two first components. Groups clearly defined were not observed; however, the populations of the coastal region formed groups distinct from those of the jungle region. Keywords: piñon blanco, morfometric, variance analysis, principal components analysis.