La localisation de la déformation est une caractéristique nécessaire de la tectonique. Pour localiser la déformation, une roche doit subir un affaiblissement. Le processus affaiblissant principal des roches est l'interconnexion de phases faibles. Dans le cas de la croûte continentale, les phases faibles étant le plus souvent responsables de la localisation sont les micas et les liquides silicatés résultant de la fusion partielle. Bien qu'il existe des études expérimentales sur la rhéologie des micas, il y a très peu d'études sur l'impact des micas sur la localisation dans les conditions de la croûte continentale inférieure. De même, les précédentes études expérimentales montrent l'effet de la fusion partielle sur la résistance des roches mais elles utilisent toutes un matériel de départ isotrope. Or la croûte subissant la fusion partielle dans les orogènes est susceptible d'être préalablement déformée et donc anisotrope. Dans le but d'apporter de nouvelles données sur le comportement mécanique et les microstructures de la croûte continentale anisotrope, ainsi que sur l'effet des micas sur la localisation de la déformation, cette thèse propose de réaliser une série d’expériences en presse de Griggs. Cette approche expérimentale est aussi couplée à un travail de terrain sur la zone de faille de Møre og Trøndelag (Norvège). Cette structure étant un zone de cisaillement d'échelle crustale dont la cinématique est partiellement synchrone de la fusion partielle, elle est adaptée à l'étude naturelle des relations entre fusion partielle et déformation. / Strain localization is a necessary feature of tectonic. To be able to localize deformation, rocks must undergo weakening. The main weakening process is weak phase interconnection. For continental crust, weak phases that are the most often responsible of strain localization are micas and melt. Although previous experimental studies exist about rheological properties of micas, none are about the effect of micas on the strain localization in the lower continental crust conditions. Previous experimental studies about the effect of partial melting were always done with isotropic starting material. But continental crust which undergo partial melting is very likely to be deformed before melting and therefore to be highly anisotropic. In the aim to bring new data about mechanical behavior and microstructures of anisotropic continental crust, as well as the effect of micas on strain localization, this thesis propose to conduct a series of experiments in a Griggs apparatus. This experimental approach is also coupled with field work on the Møre og Trøndelag Fault Zone (Norway). This crustal scale shear zone was partially synchronous with partial melting and therefore is well suited for studying relation ship between deformation and partial melting

Introducción.-Con la reciente aparición de las técnicas de traqueotomía percutánea (TP) entra en juego un nuevo elemento de discusión en el mantenimiento de la vía aérea en pacientes UCI.Objetivo del estudio.-Determinar la viabilidad de la TP según el método de Griggs en el manejo de la vía aérea en enfermos críticos de la UCI sometidos a ventilación mecánica.Material y métodos.-Se realiza un estudio prospectivo de 114 enfermos UCI sometidos a TP según Griggs, estudiando las complicaciones surgidas a corto y largo plazo.Resultados.-Destacar el escaso porcentaje de complicaciones intra y post quirúrgicas de la técnica estudiada. Respecto a las lesiones laringo-traqueales halladas al mes y los tres meses después de la intervención, éstas ni se relacionan ni con las características de la técnica realizada.Discusión.-Se pone de manifiesto la seguridad y fiabilidad de la técnica en relación a los resultados obtenidos comparando los resultados con los presentes en la literatura tanto para las técnicas percutáneas como para las técnicas clásicas.Conclusiones.-Se demuestra la viabilidad de la TP según el método de Griggs como acceso instrumental de la vía aérea en enfermos UCI sometidos a ventilación mecánica.

In this thesis, I examine depictions of black female characters crafted by black authors writing in the late 19th century, and I consider how they use these depictions as attempts to challenge white supremacist rhetoric and imagery. In particular, I examine how Frances E.W. Harper and Sutton E. Griggs represent black women through their female characters in their respective novels, Iola Leroy and Imperium in Imperio. I situate these novels within the historical moments, Reconstruction and Redemption, with which Harper and Griggs both document and contend. In these two texts, Harper and Griggs trace, through their characters’ struggles, the hopes and gains of Reconstruction, and the frustration and despair of Redemption. In attending so closely to their own political contexts, Harper and Griggs, non-traditional novelists who were more well known for other forms of writing and for their oratorical skills, selected the novel as a political tool to theorize uplift. Throughout this thesis I examine how and why their constructions of black womanhood in Iola Leroy and Imperium in Imperio frequently idealize their female characters, and I focus on both authors’ efforts to reclaim the image of black women, salvaging it from the destructive imagery of plantation literature and introducing a proud and positive model of black feminine virtue, strength, and influence.

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Thesis (Ph. D.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains iv, 260 p. Vita. Includes abstract. Includes bibliographical references (p. 237-256).

The purpose of this thesis is to evaluate and refute Yvonne Griggs’ claims that the films “House of Strangers” (1949) and “Broken Lance” (1954) are as Griggs deems “genre-based adaptations” of William Shakespeare’s “King Lear.” I argue that the films, although they have some essential elements of “King Lear,” lack intentionality and reception, pivotal components in determining viability as a Shakespearean film adaptation. Using Griggs’ book as my critical background, I will show that these films are better classified under their respective genre categories, Western and film noir, not as “King Lear” genre adaptations. I will also suggest criteria for determining the level of canonicity of a “King Lear” film adaptation. Popularity of films does not determine validity, and a film does not need purported Shakespearean provenance to validate its ratings. Some films, like these, merely reference or pay homage to Shakespeare through use of essential elements of “King Lear”; here, I deem such affinities to be more unintentional than intentional.