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Thesis (D. Min.)--McCormick Theological Seminary, 1995. / Includes bibliographical references (leaves 38-40).

Thesis (D. Min.)--Erskine Theological Seminary, 1996. / Abstract. Includes bibliographical references (leaves 192-199).

Doctor of Philosophy / Chemistry / Ryszard J. Jankowiak / The structure-function relationships of natural pigment–protein complexes are of great interest, as the electronic properties of the pigments are tuned by the protein environment to achieve high quantum yields and photon utilization. Determination of electronic structure and exciton dynamics in protein complexes is complicated by static disorder and uncertainties in the properties of system-bath coupling. The latter is described by the phonon profile (or spectral density), whose shape can only be reliably measured experimentally for the lowest energy state. Low-temperature, laser-based spectroscopies are applied towards model pigment–protein complexes, i.e., the Fenna-Matthews-Olson (FMO) and water-soluble chlorophyll-binding (WSCP) complexes, in order to study system-bath coupling and energy transfer pathways. Site-selective techniques, e.g., hole burning (HB) and fluorescence line narrowing, are utilized to overcome static disorder and reveal details on homogeneous broadening. In addition, excitonic calculations with non-Markovian lineshapes provide information on electronic structure and exciton dynamics. A new lognormal functional form of the spectral density is recommended which appropriately defines electron-phonon parameters, i.e., Huang-Rhys factor and reorganization energy. Absorbance and fluorescence spectral shifts and HB spectra reveal that samples of FMO may contain a subpopulation of destabilized proteins with modified HB efficiencies. Simulations of spectra corresponding to intact proteins indicate that the entire trimer has to be taken into account in order to properly describe fluorescence and HB spectra. The redshifted fluorescence spectrum of WSCP is described by uncorrelated energy transfer as opposed to previous models of excited state protein relaxation. Also, based on nonconservative HB spectra measured for WSCP, a mechanism of electron transfer between chlorophylls and aromatic amino acids is proposed.

<p>The Fenna-Matthews-Olson (FMO) complex is a photosynthetic pigment-protein complex that has been the subject of study of decades of research, both experimental and theoretical. The FMO complex is small enough that computational modeling is feasible, while the rich excitonic interactions between the pigments give rise to absorption and circulardichroism (CD) spectra with many interesting details. This makes FMO an excellent testing ground for new predictive modeling techniques.</p> <p><br></p> <p>In this work we model the FMO complex from first-principles, wherein the only input is the X-ray crystal structure of the protein. We compute steady-state absorption and CD spectra of wild-type (WT) FMO as well as two mutants, Y16F and Q198V, in which amino acid residues near pigment 3 and pigment 7 are replaced respectively. CD spectra contain extra structural information and thus provide another avenue of investigation into the electronic properties of the FMO complex. We find that while there are large structural changes in the mutants, not all of the structural changes produce significant spectral changes. We conclude that the primary contributor to the spectral changes in Y16F is the breaking of a hydrogen bond between the nearby tyrosine and pigment 3. On the other hand, the spectral changes in Q198V are due to a collection of effects cancelling one another out to varying degrees, all induced by widespread structural changes as a result of the mutation.</p> <p><br></p> <p>We then perform time-resolved absorption and CD spectroscopy measurements on WT, Y16F, and Q198V FMO to provide a high quality set of experimental data against which the first-principles spectra can be validated. We find that in order to accurately model the triplet energy transfer dynamics in FMO two effects must be accounted for in the modeling: (1) the Stark shift caused by the rotation of the bacteriochlorophyll’s permanent dipole moment upon entering a triplet state, and (2) decays must be modeled as Boltzmann populations rather than individual pigments.</p>

[pt] A apocalíptica judaica tem um papel importante no cristianismo primitivo, assim como no judaísmo da diáspora. Quando lemos o relato da transfiguração no evangelho de Mateus e comparamos o mesmo com os do evangelho de Marcos e Lucas, percebemos semelhanças e diferenças. Dentre as diferenças, aquelas apresentadas pelo evangelho de Mateus chamam a atenção pelo realce que dá aos aspectos apocalípticos. Por isso, a presente pesquisa analisa a influência da apocalíptica judaica no relato da transfiguração no evangelho de Mateus. Para tanto, a pesquisa começa abordando as questões centrais da apocalíptica judaica e, também o contexto histórico do evangelho de Mateus, ou seja, sua relação com o ambiente romano e com os Judaísmos do final do primeiro século d.C. Em seguida, a perícope de Mt 17,1-8 é analisada mediante o método histórico-crítico, que dentre as análises do método, destaca como o redator trabalhou a sua fonte, o relato do evangelho de Marcos. Por fim, os aspectos teológicos da perícope estudada são analisados, tendo como princípio a comparação com textos da apocalíptica judaica que possuem alguma correspondência. A correspondência, em cada ponto, é feita observando a seguinte ordem: cronológica, semântica e teológica. Dessa forma, a pesquisa ratifica a idéia que para se entender o relato de Mateus da transfiguração é necessário o conhecimento da apocalíptica judaica. / [en] The Jewish apocalyptic plays an important role in early Christianity, as well as in Judaism of diaspora. When we read the story of the Transfiguration in the Gospel of Matthew and compare the same with the Gospel of Mark and Luke, we see similarities and differences. Among the differences, those presented by the Gospel of Matthew draw attention by highlighting that gives doomsday aspects. Therefore, this research analyzes the influence of Jewish apocalyptic account of the Transfiguration in the Gospel of Matthew. To do this, the search begins by addressing the central issues of Jewish apocalyptic, and also the historical context of the Gospel of Matthew, namely, its relationship with the environment and with the Judaisms from the end of the first century AD the then perícope of Matt 17,1-8 is parsed by method, that of historical-critical analysis of the method, outlines how the writer worked its source, the story of the Gospel of mark. Finally, the theological aspects of pericope studied are analyzed, having as a principle the comparison with texts of Jewish apocalyptic that have some correspondence. The match, at each point, is done by observing the following order: chronological, semantics and theological. This way the search ratifies the idea that in order to understand the story of Matthew of the Transfiguration is required knowledge of Jewish apocalyptic.

The Buckling Restrained Braced Frame (BRBF) is used in steel structures as a lateral load resisting system for seismic events. In typical design procedure the impact of gravity loads acting on BRBFs is neglected and the beams and columns of the structure are designed to resist all gravity loads. In actuality BRBFs are supporting portions of gravity loads acting on the structure which may be changing the overall performance of BRBFs. The purpose of this study is to determine the impact of large gravity loads on BRBF performance. This is done using finite element analysis to test two different structures supporting large gravity loads. The first structure is a seven story structure consisting of different BRBF configurations; the second structure is a three story structure with all BRBFs in an eccentrically braced configuration. Each structure was modeled with applied ground motion simulations with and without gravity loads, and with gravity loads but no applied ground motion simulations. Results indicate that gravity loads have no significant impact on the overall performance of BRBFs for either structure.

Thesis (Ed.D.)--University of West Florida, 2007. / Title from title page of source document. Document formatted into pages; contains 192 pages. Includes bibliographical references.

abstract: Highly active in the fields of viola performance, composition, recording, and pedagogy, Lionel Tertis is known as one of the first and most influential career violists. Established in 1980, the Lionel Tertis International Viola Competition and Festival was founded in his honor and occurs triennially at the Isle of Man. While addressing facets of the professional violist with workshops, lectures, and masterclasses, this event provides a venue for competitive performers, acting as a platform for new viola repertoire. Each competitor must prepare an extensive set of viola repertoire, among which is a compulsory piece for unaccompanied viola by an English composer. These commissioned works require the virtuosity and expression available within a contemporary musical language; this additionally challenges competitors to provide an artistic interpretation relatively untouched by tradition or common practice. Although these pieces are written specifically for the competition, the commissioned works have the capacity to reach beyond the competition sphere and are highly programmable in most recital and solo performance settings. These pieces provide the contemporary violist with a greater selection of repertoire that displays idiomatic and expressive strengths of the viola. My project commemorates the contributions of Lionel Tertis to the advancement of viola repertoire and performance with the study of works written a century post his prolific career. The secondary intent is to provide biographical information about each composer and to explore how these highly programmable works enrich the violist and their repertoire, ultimately bringing recognition to these new works for solo viola. Through biographical research, musical analysis, interviews and the recording process, I will provide a performer's analysis and supplemental recordings for three of these works: Darkness Draws In by David Matthews, Sonatine I by Roger Steptoe and Through a Limbeck by John Woolrich. / Dissertation/Thesis / Audio recording of 'Sonatine I' by Roger Steptoe, performed by Allyson Wuenschel / Audio recording of 'Darkness Draws In' by David Matthews, performed by Allyson Wuenschel / Audio recording of 'Through A Limbeck' by John Woolrich, performed by Allyson Wuenschel / Doctoral Dissertation Music 2017

La principal razón que ha motivado esta investigación, es el estudio de la fotografía como soporte y lenguaje, ya sea de expresión o de información. Para esto se ha revisado la obra fotográfica de Mariana Matthews y ésta se ha trasladado desde el campo del arte al campo del patrimonio, concentrando el interés no sólo en la fotografía que se considera como patrimonio a raíz de la valoración que se le da a través del tiempo, dada su significación histórica; sino también en aquella que podría ser valorada como patrimonio desde su origen, desde el momento en que el artista encuadra y aprieta el obturador.