Made available in DSpace on 2016-04-25T20:19:53Z (GMT). No. of bitstreams: 1 Paulo Baltazar.pdf: 12348587 bytes, checksum: 62c8227228c6a07eedab0e1866fa84fa (MD5) Previous issue date: 2010-05-31 / Fundação Ford / In the 1980s, several government-sponsored projects were directed at improving the relationship between the Terena people and the white population. The most recent of those projects the construction of a gas pipeline running from Bolivia to Brazil served as a test case in that relationship. The negotiations around the implementation of the project brought to the surface the contrast between the decision making process which is characteristic of the Terena people and that of the non-indigenous authorities and their organizations in question. Up until then, the Terena leadership had never been consulted or invited to participate in the planning stage of projects aimed at the indigenous population. As a consequence, most of those projects and public policies have failed, due to the fact that they had been decided in the offices of the bureaucrats without the input of the receptors. The highlight of the gas pipeline project negotiations happened during a meeting between the representatives of the national and international agencies involved in the project, on the one hand, and the Terena leadership, on the other, whose venue was in Campo Grande, the capital of the State. On that occasion, the Terena clashed with the white representatives who proposed using the geographical distance between the Terena settlements and the actual pipeline as the sole factor in the financial compensation for the impact which the project would have on the indigenous territory and population. The argument advanced by the Terena leadership, at the time, was that the criterion proposed was contrary to their traditional decision making process. The Terena make their group decisions on the basis of the interaction between the extended family groups as well as the reciprocity of interests within their communities. The present study describes and analyzes negotiation which took place around the gas pipeline project vis-à-vis the features of the decision-making process which is characteristic of the Terena people. The chronology of the negotiation process is given as well as the attending results which derived from the entire process itself / Na década de 1980 vários foram os projetos de políticas publicas destinados aos Terena no Distrito de Taunay, com objetivo de facilitar a relação dos povos indígenas com o mundo do branco. O projeto mais recente foi a construção do Gasoduto Bolivia-Brasil que passa nas proximidades das terras indígenas, servindo de marco revelador no processo de negociação e de decisão das lideranças Terena. Até então as lideranças Terena nunca foram convidadas e nem tão pouco consultadas para participar na elaboração dos projetos destinados as populações indígenas. Como conseqüência, a maioria dos projetos de políticas publica fracassaram em decorrência de serem construídos em gabinetes, sem a participação da parte interessada. O fator mais importante nesta construção do Gasoduto foi a reunião que aconteceu, em Campo Grande-MS, entre os representantes institucionais nacionais e internacionais envolvidos no projeto e as lideranças indígenas. As lideranças Terena reprovaram a metodologia apresentada na reunião que usava a distancia como critério empregado pela empresa responsável na construção do Gasbol. As lideranças Terena argumentaram que o critério de distancia não faz parte do processo decisório dos Terena, que se baseia na interação entre grupos familiares extensas, bem como a reciprocidade no interesse comum e que são povos unidos independente de distancia. Passados dez anos, a implantação do Gasoduto, os recursos aplicados nas aldeias em sua maior parte não trouxeram resultados desejados. A explicação de certos fracassos tem como matriz a desvalorização e desconhecimento do processo decisório do Terena

Made available in DSpace on 2016-04-26T14:52:33Z (GMT). No. of bitstreams: 1 Paulo Baltazar.pdf: 12348587 bytes, checksum: 62c8227228c6a07eedab0e1866fa84fa (MD5) Previous issue date: 2010-05-31 / Fundação Ford / In the 1980s, several government-sponsored projects were directed at improving the relationship between the Terena people and the white population. The most recent of those projects the construction of a gas pipeline running from Bolivia to Brazil served as a test case in that relationship. The negotiations around the implementation of the project brought to the surface the contrast between the decision making process which is characteristic of the Terena people and that of the non-indigenous authorities and their organizations in question. Up until then, the Terena leadership had never been consulted or invited to participate in the planning stage of projects aimed at the indigenous population. As a consequence, most of those projects and public policies have failed, due to the fact that they had been decided in the offices of the bureaucrats without the input of the receptors. The highlight of the gas pipeline project negotiations happened during a meeting between the representatives of the national and international agencies involved in the project, on the one hand, and the Terena leadership, on the other, whose venue was in Campo Grande, the capital of the State. On that occasion, the Terena clashed with the white representatives who proposed using the geographical distance between the Terena settlements and the actual pipeline as the sole factor in the financial compensation for the impact which the project would have on the indigenous territory and population. The argument advanced by the Terena leadership, at the time, was that the criterion proposed was contrary to their traditional decision making process. The Terena make their group decisions on the basis of the interaction between the extended family groups as well as the reciprocity of interests within their communities. The present study describes and analyzes negotiation which took place around the gas pipeline project vis-à-vis the features of the decision-making process which is characteristic of the Terena people. The chronology of the negotiation process is given as well as the attending results which derived from the entire process itself / Na década de 1980 vários foram os projetos de políticas publicas destinados aos Terena no Distrito de Taunay, com objetivo de facilitar a relação dos povos indígenas com o mundo do branco. O projeto mais recente foi a construção do Gasoduto Bolivia-Brasil que passa nas proximidades das terras indígenas, servindo de marco revelador no processo de negociação e de decisão das lideranças Terena. Até então as lideranças Terena nunca foram convidadas e nem tão pouco consultadas para participar na elaboração dos projetos destinados as populações indígenas. Como conseqüência, a maioria dos projetos de políticas publica fracassaram em decorrência de serem construídos em gabinetes, sem a participação da parte interessada. O fator mais importante nesta construção do Gasoduto foi a reunião que aconteceu, em Campo Grande-MS, entre os representantes institucionais nacionais e internacionais envolvidos no projeto e as lideranças indígenas. As lideranças Terena reprovaram a metodologia apresentada na reunião que usava a distancia como critério empregado pela empresa responsável na construção do Gasbol. As lideranças Terena argumentaram que o critério de distancia não faz parte do processo decisório dos Terena, que se baseia na interação entre grupos familiares extensas, bem como a reciprocidade no interesse comum e que são povos unidos independente de distancia. Passados dez anos, a implantação do Gasoduto, os recursos aplicados nas aldeias em sua maior parte não trouxeram resultados desejados. A explicação de certos fracassos tem como matriz a desvalorização e desconhecimento do processo decisório do Terena

Made available in DSpace on 2014-12-17T15:41:49Z (GMT). No. of bitstreams: 1 ErileideCR_DISSERT.pdf: 2520187 bytes, checksum: cbaac2eaf2812c34709374f87564cb10 (MD5) Previous issue date: 2010-07-12 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Corrosion is an important phenomenon that frequently occurs in the oil industry, causing surface ablation, such as it happens on the internal surfaces of oil pipes. This work aims to obtain new systems to reduce this specific problem. The surfactants SDS, CTAB, and UNITOL L90 (in micellar and microemulsionated systems) were used as corrosion inhibitors. The systems were obtained using a C/S ratio of 2, butanol as cosorfactant, kerosene as oil phase and, as water phase, NaCl solutions of 0.5M with pH = 2, 4, and 7. Microemulsion regions were found both for direct and inverse micelles. SDS had the higher microemulsion region and the area was not dependent of pH. The study of micellization of these surfactans in the liquid-gas interface was carried out via the determination of CMC from surface tension measurements. Regarding microemulsionated systems, in the case of CTAB, CMC increased when pH was increased, being constant for SDS and UNITOL L90. Concerning micellar systems, increase in pH caused decrease and increase in CMC for SDC and CTAB, respectively. In the case of UNITOL L90, CMC was practically constant, but increased for pH = 4. The microemulsionated systems presented higher CMC values, except for UNITOL L90 L90. The negative values of free energy of micellization indicated that the process of adsorption was spontaneous. The results also indicated that, comparing microemulsionated to systems, adsorption was less spontaneous in the case of SDS and CTAB, while it did not change for UNITOL L90. SAXS experiments indicated that micelle geometry was spherical, existing also as halter and flat micelles, resuting in a better inght on the adsorption at the liquid-solid interface. Efficiency of corrosion inhibition as determined by electrochemical measurements, from corrosion currents calculated from Tafel extrapolation indicuting heat showed surfactants to be efficient even at low concentrations. Equilibrium isotherm data were fitted to the Freundlich model, indicating that surfactant adsorption occurs in the form of multilayers / A corros?o ? um fen?meno presente em diversos seguimentos da ind?stria do petr?leo, causando desgastes em superf?cies de equipamentos met?licas, como exemplo a corros?o interna nos oleodutos. Este trabalho visa obter novos sistemas qu?micos para diminuir tal problema. Os tensoativos utilizados como inibidores de corros?o foram o SDS, CTAB e UNITOL L90 em sistemas micelares e microemulsionados. Para obten??o dos sistemas microemulsionados utilizou-se uma raz?o C/T=2, butanol como cotensoativo, querosene como fase ?leo e como fase aquosa utilizou-se solu??es de NaCl 0,5M nos pH s 2, 4 e 7. As regi?es de microemuls?o encontradas para os tr?s tensoativos s?o formadas por micelas diretas e inversas. A ?rea se mant?m constante com a varia??o do pH, o SDS tem maior regi?o de microemuls?o. O estudo da miceliza??o destes tensoativos na interface l?quido-g?s foi realizado a partir de medidas de tens?o superficial obtendo os valores de c.m.c, os quais foram particamente constantes para os sistemas microemulsionados com os tensoativos SDS e UNITOL L90 L90, e aumentaram para o CTAB quando elevou-se o pH. Os valores de c.m.c para os sistemas micelares com os tensoativos SDS e CTAB diminu?ram e aumentaram, respectivamente, quando aumentou-se o pH. J? o UNITOL L90 apresentou valores praticamente constantes, por?m foi maior em pH 4. Os sistemas microemulsionados apresentaram valores de c.m.c maiores, exceto para o tensoativo UNITOL L90. Os valores negativos de energia livre de miceliza??o indicaram que o porcesso de adsor??o ? espont?neo. Os resultados mostraram que os sistemas microemulsionados para os tensoativos SDS e CTAB foram menos espont?neos comparados ao sistema micelar, enquanto o UNITOL L90 apresentou valores praticamente constantes. Experimentos com SAXS mostraram que as geometrias das micelas foram esf?ricas, existindo ainda na forma de halteres ou de micelas achatadas, o que facilitou a compreens?o do estudo de adsor??o na interface l?quido-s?lido. As efici?ncias de inibi??o ? corros?o foram determinadas mediante medidas eletroqu?micas, a partir das correntes de corros?o encontradas atrav?s da extrapola??o de Tafel. Os tensoativos estudados se mostraram eficientes mesmo em baixas concentra??es. Os dados experimentais de ajustaram ao modelo da isoterma de Freundlich, indicando que a adsor??o dos tensoativos ocorre em multicamadas

The ability to backfill leadership positions has become a key focus of business leaders since 2005 when the baby boom workforce started to age. An aging workforce threatens the capability of business leaders to develop leadership pipelines to ensure business success. Grounded by the social exchange theory, the purpose of this qualitative single case study was to explore successful strategies that technology services managers used to align core business objectives to improve succession planning at a technology services organization located in Dallas, Texas. Data collection and triangulation included semi structured telephone interviews with 12 technology services managers, company documents, and archival information. Data analysis included the examination of rich text data, coding, and classification of themes using Yin's 5-step approach. Four themes emerged, revealing that these managers (a) created and sustained a leadership talent pipeline for high potential employees for future leadership roles; (b) sourced internal candidates with core leadership competencies; (c) remediated leadership skills gaps through developed relationships and documented processes; and (d) re-engineered the replacement planning process for the internal leadership talent pipeline. Implications for positive social change include the potential for technology services managers to implement effective succession planning strategies that could increase employee morale, enhance profitability and growth, and promote healthy community partnerships.

School-Wide Positive Behavioral Interventions and Supports (SWPBIS) is a school disciplinary framework seen as an effective tool to replace school disciplinary practices that contribute to the school to prison pipeline (STPP). While evidence suggests that SWPBIS can help improve school discipline and lower suspension/expulsion rates, it has not been shown to consistently decrease racial disciplinary disparities. This study thematically analyzed semi-structured interviews of educational staff at one high school at the outset of SWPBIS implementation to understand their perceptions of school discipline and the potential for SWPBIS to address root causes of racial disciplinary disproportionality. Using a critical race theory analytical lens to center issues of race and racism, the findings revealed a school that is deeply structured in Whiteness. Participants described the school as “two schools in one”—one that is largely White, affluent, and high-achieving and another that is predominantly Black, economically disadvantaged, and achieving at lower levels. Educators were open to key elements of SWPBIS, such as positive discipline and school-wide consistency in disciplinary practices. And while many participants identified systemic barriers to achieving equity, they simultaneously relied on discursive strategies that upheld Whiteness. These findings suggest that SWPBIS has the potential to be an alternative to punitive school discipline, but faces multiple barriers in addressing disciplinary disproportionality. The segregated and stratified school structure raises questions about whom SWPBIS is for and who will bear the burden of implementation.

Quantifying tissue volumes in pediatric brains from magnetic resonance (MR) images can provide insight into etiology and onset of neurological disease. Unbiased volumetric analysis can be applied to large population studies when automated image processing is possible. Standard segmentation strategies using adult atlases fail to account for varying tissue contrasts and types associated with the rapid growth and maturational changes seen in early neurodevelopment. The goal of this project was to develop an automated pipeline and two age-specific atlases capable of providing accurate tissue classification despite these challenges. The automated pipeline consisted of a stepwise initial atlas-to-subject registration, expectation maximization (EM) atlas based segmentation, and a post-processing level set segmentation for improved white/gray matter separation. This level set segmentation is a 3D and multiphase adaptation of a 2D method intended for use on images with the types of intensity Inhomogeneities found in MR images. The initial tissue maps required to determine spatial priors for the one-year-old atlas were created by manually cleaning the results of an adult atlas and the automated pipeline. Additional tissue maps were incrementally added until the spatial priors were sufficiently representative. The neonate atlas was similarly created, starting with the one-year-old atlas.

Nous abordons ici la thématique des opérateurs et processeurs flot de données dédiés au traitement d'images et orientés vers la morphologie mathématique. L'objectif principal est de proposer des architectures performantes capables de réaliser les opérations simples de ce corpus mathématique afin de proposer des opérateurs morphologiques avancés. Ces dernières années, des algorithmes astucieux ont été proposés avec comme objectif de réduire la quantité des calculs nécessaires à la réalisation de transformations telle que la ligne de partage des eaux. Toutefois, les mises en œuvre proposées font souvent appel à des structures de données complexes qui sont difficiles à employer sur des machines différentes des processeurs généralistes monocœurs. Les processeurs standard poursuivant aujourd'hui leur évolution vers une augmentation du parallélisme, ces implémentations ne nous permettent pas d'obtenir les gains de performance escomptés à chaque nouvelle génération de machine. Nous proposons alors des mises en œuvre rapides des opérations complexes de la morphologie mathématique par des machines exploitant fortement le parallélisme intrinsèque des opérations basiques. Nous étudions dans une première partie les processeurs de voisinage travaillant directement sur un flot de pixels et nous proposons différentes méthodologies de conception rapide de pipelines dédiés à une application. Nous proposons également une structure de pipeline programmable via l'utilisation de processeurs vectoriels avec différentes possibilités de chaînage. Enfin, une étude avec des machines est proposée afin d'observer la pertinence de notre approche.

<p>The purpose of this thesis is to construct a"Program Address Generator"(PAG) to a 24-bit Harvard type, RISC DSP processor using the VHDL language. The PAG is a part of the program control unit, and should consist of the following units: </p><p>A system stack for storing jump and loop information. A program counter, a status register, a stack pointer, an operating mode register and two registers called loop address and loop counter register, to support hardware loops. </p><p>The PAG handles the fetch stage of the processor pipeline, and should handle instructions such as the jump, subroutine jump, return from subroutine/interrupt and loop instructions, among others. </p><p>The PAG was successfully designed, and its function verified through extensive tests, where common combinations of ASM instructions were tested. Files for automated testing was created, to support easy testing if only small changes are applied to the PAG.</p>

<p>Digitizing objects and environments from real world has become an important part of creating realistic computer graphics. Through the use of structured lighting and laser time-of-flight measurements the capturing of geometric models is now a common process. The result are visualizations where viewers gain new possibilities for both visual and intellectual experiences. </p><p>This thesis presents the reconstruction of the Parthenon temple and its environment in Athens, Greece by using a 3D laser-scanning technique. </p><p>In order to reconstruct a realistic model using 3D scanning techniques there are various phases in which the acquired datasets have to be processed. The data has to be organized, registered and integrated in addition to pre and post processing. This thesis describes the development of a suitable and efficient data processing pipeline for the given data. </p><p>The approach differs from previous scanning projects considering digitizing this large scale object at very high resolution. In particular the issue managing and processing huge datasets is described. </p><p>Finally, the processing of the datasets in the different phases and the resulting 3D model of the Parthenon is presented and evaluated.</p>

Graduation date: 2006 / The design of a 10-bit pipelined charge redistribution DAC employing MOSCAPs biased in their accumulation mode is presented in this thesis. A switched capacitor filter and output buffer have also been designed for the system. The effect of MOSCAP nonlinearity on the performance of the pipelined charge redistribution DAC has been analyzed. MOS capacitors and their models available for simulation have been discussed. In addition, the effect of more general capacitor nonlinearities on the performance of the DAC has been presented.