Thesis (Ph.D.)--Memorial University of Newfoundland, 2003. / Bibliography: leaves 226-236.

Thesis (Ph. D.)--Catholic University of America, 1945. / Bibliography: p. 106-107.

In the first section of this thesis the simple Pierce Theory for the travelling wave tube is discussed and developed. The result of this analysis is a number of equations which produce information about gain and bandwidth. The next section of the thesis is devoted to a discussion of periodic structures with particular emphasis on dielectric loaded periodic structures. Finally the Pierce Theory is applied to the dielectric slow wave structure. Results are presented of a study performed to find a correlation between the physical dimensions of the dielectric structure and the gain-bandwidth properties of a travelling wave tube employing the structure. These results, which are in graphical form, can be used to eliminate the initial exploratory design work for travelling wave tubes of this type. A sample use is made of the design curves and the results are compared to a computational check to show both the usefulness and the limitations of the curves / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

The purpose of this study was to describe and record the experiences of people of color in a community leadership development program. Selected people of color were asked to describe their experiences as participants in the American Leadership program in Tacoma-Pierce County in the State of Washington. The American Leadership Forum (ALF) is a national leadership development program that is dedicated to joining and strengthening established leaders in order to serve the public good. ALF has 13 chapters throughout the United States, one of which is in Tacoma-Pierce County. Ten graduates of the year-long program were participants in the study, all of whom resided, at the time of the study, in that local community. The participants shared stories of their common experiences. These stories were compared to reveal the similarities and differences among them. While their personal backgrounds, familiarity with leadership theory, and careers revealed considerable differences, common themes emerged from the interview data. The research identified the following themes of their perceptions of the ALF participation: networking, relationships, community commitment, leadership development, personal transformation, family, connectedness over time, diversity, and community impact. The emergent themes reflect the positive perceptions of the participants' experiences, as well as their disappointments and concerns. They also represent the attitudes and opinions that were most deeply impacted by the ALF experience, as evidenced by their stories. The findings suggest community leadership development programs have the ability to: 1) Enhance professional networks and encourage relationship building 2) Empower leaders by developing their leadership capacity 3) Develop the image of a positive, centered self as a significant part of effective leadership. The findings also suggest considerations for the planning of leadership development programs that include: 1) Time for reflection and sharing 2) Relationship building among the participants of color 3) Balancing competing needs for time (i.e., work, involvement in the community, and meeting family obligations) 4) A mentor component 5) A learning environment that acknowledges and draws upon the diverse wealth of knowledge and experiences brought by the participants 6) Time for meaningful dialogue on ethnic and racial diversity. Recommendations for further research on leadership development and ethnic and racial leadership are included. They include intensive studies in leadership development, leadership development programs, and promoting and sustaining diverse communities. / Graduation date: 2004

Thesis (M.F.A.)--Boston University N.B.: Missing page 19. Thesis misnumbered.

This dissertation examines the rise of the racialized apocalyptic genre from 1978 to 2019. The period chosen reflects the social shift of the American political right into a party that accepts white supremacy as a tenet. In the post-Civil Rights era, white Americans considered the issue of racism to be solved. With the historic Voting Rights Act and other major victories in the 1960s there was a moment when it seemed America may turn a corner. However, when Richard Nixon took office in 1969, he originated what would be a long process of positioning the American right against intellectualism, minorities, and progress. Nixon, and the development of the new southern strategy would reach decades into the future, utilizing coded language and pitting Americans against one another. Research examining the racialized elements of the American right from Nixon to contemporary times is well chronicled and vast.

This paper sets out to detail the making of When I Wake with specific attention being paid to the mental processes of, the author, Summer Pierce throughout the undertaking. The paper, much like the filmmaking process, will discuss in succession the inspirations for the film, pre-production formulations, production of the film, post-production procedures, and analysis thereof.

Submitted by Maike Costa (maiksebas@gmail.com) on 2016-06-09T13:31:08Z No. of bitstreams: 1 arquivo total.pdf: 839426 bytes, checksum: ebf9b00b477c2e00fee8d1d80bcd32af (MD5) / Made available in DSpace on 2016-06-09T13:31:08Z (GMT). No. of bitstreams: 1 arquivo total.pdf: 839426 bytes, checksum: ebf9b00b477c2e00fee8d1d80bcd32af (MD5) Previous issue date: 2015-11-03 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / Ce travail constitue une analyse sémiotique guidé les bases théoriques établies par Charles Sanders Peirce américain, qui a analysé quatre fragments du poème Morte e Vida Severina, écrit par João Cabral de Melo Neto. On a étudié la façon dont l'icône est métaphorique dans cet ouvrage , pas seulement dans le texte verbal, mais en ce qui concerne les images qui correspondent aux vers étudiés dans une de ses traductions à travers le langage non verbal. Pour souligner l’analyse de la nature métaphorique de signes décrits dans ce document, la perspective de l'interprète et l'importance des processus cognitifs mis au point par ce dernier, dans l’aspect métaphorique. Nous appelons dans notre analyse l'expérience de l’ensemble , un terme utilisé par Peirce pour décrire le monde d'expériences que l'artiste, partant des significayions qui constituent les significations donnés aux signes. / O presente trabalho se constitui de uma análise semiótica pautada nas bases teóricas protagonizadas pelo americano Charles Sanders Peirce, através das quais analisamos quatro fragmentos do poema Morte e Vida Severina, escrito por João Cabral de Melo Neto. Pesquisamos de que maneira o ícone metafórico se constitui no referido poema, não apenas no texto verbal, mas no plano das imagens que correspondem aos versos estudados numa de suas traduções para a linguagem não verbal. Enfatizamos para análise dos signos de natureza metafórica abordados no presente trabalho, a perspectiva do intérprete e a importância dos processos cognitivos desenvolvidos por este último na construção da metáfora. Consideramos em nossa análise a chamada experiência colateral, termo utilizado por Peirce para designar as vivências de mundo desse intérprete, a partir das quais se constitui em significados atribuídos aos signos.

Tamora Pierce’s work has been cited by many Young Adult fantasy authors as a major influence in recent years. Despite this, her work remains relatively obscure among librarians and readers of Young Adult literature. This paper examined one of Pierce’s Young Adult fantasy series, Protector of the Small, by comparing the series to existing works of Young Adult fantasy literature commonly accepted as classic or canonical literature. Among the comparative works were titles authored by J. R. R Tolkien, C. S. Lewis, J. K. Rowling, and Philip Pullman. Comparison was character-focused, with emphasis on the representation of parents, other sympathetic adults, peers, and family units. Some comparison was also focused on the representation of antagonists in the selected works. The aim of the comparative analysis was to serve as a guide for librarians, teachers, and readers of Young Adult literature to better understand potential target audiences for the Protector of the Small quartet. It was found that target audiences for the series would likely seek or benefit from the Protector of the Small quartet’s inclusion of supportive parental and mentor figures, strong familial bonds, and supportive and communicative peers. Target audiences would also seek literature with nuanced antagonists capable of character growth. Most prominently, target audiences would seek Young Adult fantasy literature that addresses real-world issues and challenges for young women, including sexism, puberty, and reproductive healthcare.

Pierce s Disease (PD) of grapevines is caused by the bacterium Xylella fastidiosa (Xf), a xylem-limited gamma-proteobacterium that is responsible for several economically important diseases in many plants. A characteristic symptom of PD is leaf scorching, with regions of chlorosis progressing into necrotic zones at the peripheral margins of infected leaves. The occlusion of xylem elements and interference with water transport by Xf and its associated biofilm have been hypothesized as the main cause of PD symptom development; however, Xf virulence mechanism has not been elucidated. The analysis of Xf Temecula 1 secretome revealed a putative lipase/esterase (PD1703) that was abundantly secreted in the bacterial culture supernatant, and was characterized as a protein ortholog of the cell wall degrading enzyme LipA of Xanthomonas strains. The LipA was secreted and associated with a biofilm filamentous network and additional proteomic analysis revealed its abundant presence in outer membrane vesicles (OMVs). Accumulation of LipA in leaf regions was positively associated with PD symptoms and inversely correlated with bacterial titer. The lipase/esterase was found to elicit a hypersensitive response in grapevine and was regulated by quorum-sensing signaling, which is known to modulate bacterial pathogenesis. We propose that Xff pathogenesis is caused by LipA secretion mediated by OMV cargos, and its release and accumulation in leaf margins leads to the observed PD symptoms development. / A Doença de Pierce (PD) em videiras (Vitis vinifera L.) é causada pela bactéria Xylella fastidiosa (Xf), uma gama-proteobactéria responsável por diversas doenças em plantas economicamente importantes. Um sintoma característico da PD é a queimadura, caracterizado por zonas de clorose progredindo em necrose nas margens da lâmina foliar. O processo resultante da oclusão dos elementos do xilema por células bacterianas e pelo biofilme associados às mesmas, bem como o consequente bloqueio do fluxo da seiva, têm sido hipotetizado como a principal causa dos sintomas comumente observados na PD. Embora tal hipótese seja suportada por algumas evidências, o mecanismo de virulência de Xf não foi totalmente compreendido. A análise do secretoma de Xf Temecula 1 revelou que uma lipase/esterase (PD1703) é abundantemente secretada in vitro. Esta proteína foi caracterizada como ortóloga à proteína LipA presente em bactérias do grupo das Xanthomonas e funcionalmente caracterizada como degradante da parede celular neste grupo. A proteína LipA foi associada à matriz extracelular filamentosa e análises proteômicas adicionais revelaram sua presença nas vesículas de membrana externa. O acúmulo da proteína LipA em folhas de plantas infectadas foi positivamente associado aos sintomas da PD e inversamente correlacionado com o título bacteriano. LipA induziu resposta de hipersensibilidade em videiras e foi regulada por sinalização célula-célula, mecanismo conhecido por modular a patogênese bacteriana. Com base em tais evidências, propomos que a secreção da proteína LipA mediada pelas vesículas de membrana externa e sua liberação e acúmulo em margens foliares, onde leva ao desenvolvimento dos sintomas comumente observados na doença, seja um mecanismo essencial à patogênese de X. fastidiosa na PD. / Doutor em Genética e Bioquímica