Stoney Burns (Brent LaSalle Stein) edited and published Dallas Notes, a Dallas, Texas, underground newspaper, from November 1967 through September 1970. This thesis considers whether Burns was the unifying figure in the Dallas counterculture.

Made available in DSpace on 2016-12-12T20:15:50Z (GMT). No. of bitstreams: 1 Alex Kraisch.pdf: 2282404 bytes, checksum: 128e624fc8b71f2bc7d95efb2b375527 (MD5) Previous issue date: 2013-03-21 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / There is a relevant potential for multilayered films in many areas of technological interest once they may combine in just one sample convenient mechanical, optical, electrical and magnetic properties, resulting in an upgrade of the original monolayer films. However, it is quite important to take into account that its production evolves chemical and crystallographic compatibility of the materials and a correct understanding of the stresses and deformations that result from the contact between different materials with quite different characteristics. The objective of this work is to build a three-dimensional model that may describe the relation between the stress in a multilayered film deposed on a thick substrate and the curvature of the sample. It is used the minimization of the deformation energy of the sample in elastic regime. This method is quite simple which is a advantage when compared with tensor procedures, allowing an easier identification of the terms as well as the reduction of the complexity of the calculations. The work starts by the motivation for the study of the stress in monolayer and multilayered films, followed by a presentation of the theoretical and experimental implications of the theme. Then, a more complete description of the methodology used and of the model itself is presented, including the identification of the corrections terms for the well-known Stoney equation. Finally, it is presented a validation of the model, by means of a comparison between its results and the values obtained by other theoretical models, taking as standard results obtained by finite element simulation that favors the model presented in this work. / Filmes compostos por múltiplas camadas de diferentes materiais possuem um potencial considerável para aplicações de interesse tecnológico, na medida em que a combinação dos materiais pode produzir coberturas com propriedades mecânicas, ópticas ou magnéticas superiores às obtidas com uma única camada de um único material. Também é evidente que sua produção envolve questões importantes como a compatibilidade cristalográfica e química, bem como uma correta caracterização das tensões e deformações em cada camada, evitando assim fissuras e delaminação entre as camadas. O objetivo desse trabalho é a construção de um modelo tridimensional que descreva a relação entre tensões e deformações em filmes finos depositados em multicamadas sobre substratos espessos. O método utilizado é o da minimização de energia de deformação da amostra em regime elástico. Esse método possui como vantagem significativa sua maior simplicidade em relação a abordagem tensorial, o que reduz a complexidade dos cálculos e permite uma mais fácil identificação dos termos envolvidos. Após a apresentação da motivação ao estudo do problema, bem como das diversas questões que envolvem a análise experimental e teórica do mesmo, é feita uma descrição mais completa da metodologia utilizada e do modelo teórico que é o foco deste trabalho. A seguir, é feita aplicação do modelo para amostras que se deformam como uma casca esférica e cilíndrica, com a identificação dos termos de correção à equação de Stoney. Finalmente, é feita uma comparação entre os valores obtidos pelo modelo e outros modelos teóricos, tomando-se como padrão os valores obtidos segundo uma simulação por elementos finitos, com um resultado favorável ao modelo proposto neste trabalho.

Made available in DSpace on 2016-12-12T20:15:53Z (GMT). No. of bitstreams: 1 RESUMO- Fabio Nery.pdf: 214160 bytes, checksum: a7fa12ba9fb8da2aa6290a30867a85b2 (MD5) Previous issue date: 2009-07-31 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O objetivo deste trabalho é a obtenção de um modelo tridimensional, que descreva as tensões que surgem em filmes finos depositados em substratos espessos planos. Para isto é utilizado o método da minimização da energia de deformação da amostra (filme fino/substrato), já descrito e utilizado na literatura para uma descrição unidimensional do problema. A vantagem deste método é sua maior simplicidade em relação a uma abordagem tensorial do problema, uma vez que envolve uma grandeza escalar (energia de deformação) de identificação mais simples que as diversas componentes de um tensor de tensões. Após a apresentação do problema físico e da metodologia, é feita a aplicação a duas situações de interesse: para uma amostra submetida a valores de tensão menos elevados, adquirindo uma forma proximadamente esférica e para uma amostra submetida a valores mais elevados de tensão, adquirindo uma forma aproximadamente cilíndrica. Nestes dois casos se obteve uma fórmula que relaciona a linha de tensão do filme com a curvatura da amostra, que é então comparada com outras formulações.

The paper examines the problem of film stress applying a correct three dimensional model. The results are compared with two different forms of Stoney´s equation existing in the Litera-ture and being widely used in the determination of stresses in thin films. It is shown theoretically that only one of the forms is based on an adequate model and yields accurate results whereas the other causes errors of about 30-40 % for typical substrate materi-als. In addition limits for the applicability of the correct Stoney equation are given.

The paper examines the problem of film stress applying a correct three dimensional model. The results are compared with two different forms of Stoney´s equation existing in the Litera-ture and being widely used in the determination of stresses in thin films. It is shown theoretically that only one of the forms is based on an adequate model and yields accurate results whereas the other causes errors of about 30-40 % for typical substrate materi-als. In addition limits for the applicability of the correct Stoney equation are given.

<p>The Smith’s Knoll collection is composed of the disarticulated, fragmentary, and commingled remains of battle dead from the War of 1812. Historical and archaeological context of this site can be well established, making it particularly valuable in helping to unveil the conditions experienced by individuals in the past. In this thesis, the Smith’s Knoll collection was analyzed for evidence of postcranial perimortem traumatic skeletal lesions. Further context for these injuries was provided through comparison with contemporaneous skeletal and surgical collections, historical documentary sources, and other bioarchaeological studies on violence and warfare in the past.</p> <p>Injuries associated with fractures, sharp force, and musket trauma were observed in the postcranial elements of the collection. Although the overall prevalence of lesions is low, the majority of observed lesions can be attributed to sharp force trauma. Sharp force injuries are present in fourteen of the ribs as well as one fibula, one femur, one carpal, one vertebra, and one ulna. Musket injuries are present in three innominates and one scapula, and perimortem fractures are present in one rib and one scapula. The sharp force injuries can be further differentiated into those most likely caused by the bayonet, found in the torso, and those most likely caused by the sword, found in the extremities. Musket trauma is present in the form of impact from both musket balls and buckshot. Importantly, this is the first study to identify buckshot lesions on archaeological skeletal material.</p> <p>The results of the analysis of Smith’s Knoll demonstrate the value of examining postcranial lesions in relation to violence in the past, which has frequently been overlooked in bioarchaeology. As well, this collection illustrates that fragmented, disarticulated, and commingled collections, despite their limitations, have much to contribute to knowledge of interpersonal violent conflicts, both in prehistory and in the more recent past.</p> / Master of Arts (MA)

Book Summary: The Grove Dictionary of American Music, second edition is the largest, most comprehensive reference publication on American Music. Twenty-five years ago, the four volumes of the first edition of the dictionary initiated a great expansion in American music scholarship. This second edition reflects the growth in scholarship the first edition initiated. At eight volumes, it provides greatly expanded coverage, particularly in the areas of popular music, cities and regions, musical theater, opera, concert music, and music technology, as well as the musical traditions of many ethnic and cultural groups.

This thesis is concerned with the mechanical stress generated in thin layers applied on a substrate. The application takes place at high temperatures and due to different coefficients of thermal expansion of materials, the sample is deformed, and thereby the stress is generated. The first part of the thesis includes the derivation of the Stoney formula for uniaxial and biaxial stress in a layer. Besides, analytical calculations of the normal stress in the layer for the simplified link model, and shear stress on the layer interface were evaluated. The main part of the work consists of solving the problem using FEM modeling. Because the actual temperature behavior during the application was not known, a fictitious temperature load was used as an input. For the samples, the coefficients of thermal expansion of the layer were then searched so that the thermal load resulting deflection corresponds to the experimental data. Three types of models were created, namely the link body model, the axisymmetric model, and the solid model. The axisymmetric model was used for the calculation of samples forming circular isolines during deformation and a volume model for samples forming elliptical isolines. The result of the FEM calculations was the normal stress in the applied layers, for which corresponding relationships were created using regression analysis.

L'un des phénomènes physiques responsable de l'apparition des fractures est la consolidation. Qu'elle soit d'origine thermique ou de séchage, la consolidation se traduit par la rétraction du matériau solide et mène sous certaines conditions, à la formation de figures de fractures typiques. On peut observer ces fractures dans les toiles d'art ou encore lors de l'évaporation de la phase fluide dans les milieux tels les suspensions colloïdales, les enduits, la boue, etc. Dans ce travail de doctorat, on s'intéresse aux fractures de rétraction qui apparaissent lors du séchage d'un système modèle constitué d'une suspension colloïdale concentrée de particules sphériques de nanolatex (D~100 nm). Durant le séchage d'un tel système, le réseau de particules forme un gel poreux qui se rétracte et se consolide sous l'effet de la pression capillaire. Quand la suspension est déposée en film mince sur un substrat rigide, la rétraction due à la consolidation devient limitée par son adhésion sur le substrat et d'intenses contraintes de tension peuvent appara\^{i}tre et conduire à l'apparition de fractures. Notre objectif est d'approcher ce problème de fissures de séchage d'un point de vue macroscopique par la mécanique des milieux continus en supposant que le film gélifié peut être modélisé par un milieu poroélastique et que la fissuration peut être prédite par la mécanique de la rupture fragile. Dans cette optique, nous avons mis en place un ensemble d'expériences permettant de valider cette approche. Il s'agit de la caractérisation de films colloïdaux par le test d'indentation et l'estimation des contraintes de tension dans ces films par la technique de la lame encastrée. Le test de microindentation permet d'obtenir une estimation du module de rigidité, de la dureté et de la viscosité du film solide, ainsi que de la ténacité et de l'énergie à la rupture. La technique de la lame encastrée tend à montrer que les contraintes de tension mesurées peuvent être estimées par la poroélasticité et la fracturation par la mécanique linéaire de la rupture.

<p>This thesis uses stable isotopic analysis to identify diet, geographic origins and long-term residency in a sub-sample of the Smith’s Knoll skeletal collection, soldiers who died during the June 6^th 1813 Battle of Stoney Creek. The major objectives of this study have been to differentiate between two major modes of dietary consumption, one wheat-based, the other maize-based, in an attempt to decipher British colonial from American soldiers. These objectives were paired with stable oxygen and strontium isotopes, two isotopic elements presently used to identify migration and regional origins. Oxygen isotopic results from teeth suggest that, as children, 5 individuals may have originated in North America. Nine individuals have isotopic signatures indicative of both a North American or United Kingdom origins. The isotopic composition from bone collagen and phosphate suggest similar geographic origins, with diets composed of both wheat- and maize-based foods. Bone phosphate values indicate that 2 individuals possibly resided in North America. The remaining 20 individuals have bone values indicative of long-term residency in both geographic regions with a significant amount of dietary mixing. These results suggest that other military participants, soldiers from the King’s 8^th Regiment and Canadian militiamen, may also be represented in this study. Prior investigations have omitted this crucial information, focusing their historic research primarily on the British 49^th Regiment. The data presented in this thesis offers a broader geographic, pan-nationalistic perspective on the possible infantrymen and militiamen who fought during the battle, including select Canadian militiamen from the Niagara region and the King’s 8^th Regiment from Britain.</p> / Master of Arts (MA)