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To calculate realistic models of objects with Ni in their atmospheres, accurate atomic data for the relevant ionization stages need to be included in model atmosphere calculations. In the context of white dwarf stars, we investigate the effect of changing the Ni IV-VI bound-bound and bound-free atomic data on model atmosphere calculations. Models including photoionization cross-section (PICS) calculated with AUTOSTRUCTURE show significant flux attenuation of up to similar to 80 per cent shortward of 180 angstrom in the extreme ultraviolet (EUV) region compared to a model using hydrogenic PICS. Comparatively, models including a larger set of Ni transitions left the EUV, UV, and optical continua unaffected. We use models calculated with permutations of these atomic data to test for potential changes to measured metal abundances of the hot DA white dwarf G191-B2B. Models including AUTOSTRUCTURE PICS were found to change the abundances of N and O by as much as similar to 22 per cent compared to models using hydrogenic PICS, but heavier species were relatively unaffected. Models including AUTOSTRUCTURE PICS caused the abundances of N/O IV and V to diverge. This is because the increased opacity in the AUTOSTRUCTURE PICS model causes these charge states to form higher in the atmosphere, more so for N/O V. Models using an extended line list caused significant changes to the Ni IV-V abundances. While both PICS and an extended line list cause changes in both synthetic spectra and measured abundances, the biggest changes are caused by using AUTOSTRUCTURE PICS for Ni.

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Thesis (Ph. D.)--University of Oklahoma, 2000. / Includes bibliographical references (leaves 153-155).

Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1940. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed March 23, 2010) Includes bibliographical references (p. 27).

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LOVATEL, Marília Ribeiro. A semiótica da luz na tradução de O Quinze, de Rachel de Queiroz, às telas e a outras páginas. 2017. 127f. - Dissertação (Mestrado) - Universidade Federal do Ceará, Programa de Pós-Graduação em Letras, Fortaleza (CE), 2017. / Submitted by Programa de Pós-Graduação em Letras (ppgletrasufc@gmail.com) on 2017-10-20T15:22:04Z No. of bitstreams: 1 2017_dis_mrlovatel.pdf.pdf: 2680744 bytes, checksum: 8dbee2e18bab541532b721615aca5e1e (MD5) / Rejected by Gustavo Daher (gdaherufc@hotmail.com), reason: Boa Tarde, Por favor normalizar o arquivo de acordo com o Guia de Normalização da UFC que está disponível no sitio http://www.biblioteca.ufc.br/servicos-e-produtos/normalizacao-de-trabalhos-academicos/ Se você baixar o Template, ele irá lhe dar um bom balizador. Basta baixar e ir comparando com o seu arquivo. http://www.biblioteca.ufc.br/wp-content/uploads/2015/08/modelo-trabalho-academico.doc Atenciosamente, Josineide / Gustavo Biblioteca das Casas de Cultura Estrangeira (BCCE) 3366-7659 on 2017-10-24T16:23:58Z (GMT) / Submitted by Programa de Pós-Graduação em Letras (ppgletrasufc@gmail.com) on 2017-11-03T12:51:23Z No. of bitstreams: 1 2017_dis_mrlovatel.pdf.pdf: 2603724 bytes, checksum: 87058e9d206585e9360b17b19f5e2542 (MD5) / Approved for entry into archive by Márcia Araújo (marcia_m_bezerra@yahoo.com.br) on 2017-11-06T13:40:08Z (GMT) No. of bitstreams: 1 2017_dis_mrlovatel.pdf.pdf: 2603724 bytes, checksum: 87058e9d206585e9360b17b19f5e2542 (MD5) / Made available in DSpace on 2017-11-06T13:40:08Z (GMT). No. of bitstreams: 1 2017_dis_mrlovatel.pdf.pdf: 2603724 bytes, checksum: 87058e9d206585e9360b17b19f5e2542 (MD5) Previous issue date: 2017 / This investigation refers to the intersemiotic translation of the novel O Quinze, a work published in 1930 by the writer Rachel de Queiroz, according to the categories of transparency and opacity. The analysis intends to point out the occurrence of a semiotic of light, motivated by the metaphor of the “glass tile”, suggested in a poem by the mentioned novelist, in the translated text and in the developments that extrapolate the original textual plan. The analysis in question develops in two levels. The first one is composed by the challenge that represents the film adaptation of the mentioned literary work, by passing through its adaptation to comic books, video and TV; and the second one refers to the dichotomous literary relations of transparency versus opacity, studied within the context of a semiotic of light. Based on the discursive semiotic of Greimas and his followers, specially Denis Bertrand, Diana Luz Pessoa de Barros and José Luiz Fiorin, and of the intersemiotic translation proposed by Roman Jakobson, this study culminates in a quantitative and qualitative survey of the occurrence of transparency and opacity in the film adaptation of O Quinze, which is understood as a translation of the namesake novel, realized by Jurandir Oliveira in 2004. By crossing the mentioned theoretical references, the reading of the literary and movie texts, by admitting that the metaphor of the glass tile is an integrating category of the compared study, we conclude that it is possible to recognize either the opacity or the transparency effect in the work of Jurandir Oliveira. / Esta investigação refere-se à tradução intersemiótica do romance O Quinze, obra lançada em 1930 pela escritora Rachel de Queiroz, segundo as categorias da transparência e da opacidade. A análise propõe-se apontar a ocorrência de uma semiótica da luz, motivada pela metáfora da “telha de vidro”, sugerida em poema da referida romancista, no texto traduzido e nos desdobramentos que extrapolam o plano textual de origem. A análise em questão se desenrola em dois níveis. O primeiro é composto pelo desafio que representa a adaptação da obra literária referida para o cinema, passando por sua adaptação para os quadrinhos, para o vídeo e para a TV; e o segundo refere-se às relações literárias dicotômicas de transparência versus opacidade, estudadas dentro do contexto de uma semiótica da luz. Fundamentado na semiótica discursiva de Greimas e seus seguidores, com destaque para Denis Bertrand, Diana Luz Pessoa de Barros e José Luiz Fiorin, e da tradução intersemiótica proposta por Roman Jakobson, este estudo culmina com um levantamento quantitativo e qualitativo da ocorrência da transparência e da opacidade na adaptação fílmica de O Quinze, entendido como tradução do romance homônimo, realizada por Jurandir Oliveira em 2004. A partir do cruzamento dos referenciais teóricos mencionados, da leitura dos textos literário e fílmico, admitindo-se como categoria integradora do estudo comparado a metáfora da telha de vidro, conclui-se que é possível reconhecer tanto a opacidade quanto o efeito de transparência no trabalho de Jurandir Oliveira.