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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Perspectives of northern researchers, residents and educators on science education and outreach in Yukon, Canada

Ross, Frances K P 09 March 2012 (has links)
International Polar Year 2007-2008 renewed interest in and funding for circumpolar research. One unique element of this International Polar Year was the focus on education and outreach initiatives. This study explores outreach stakeholders’ perspectives on conducting science outreach with northern Canadian schools. A total of sixty semi-structured interviews were conducted with northern researchers, residents and educators to determine culturally appropriate and pedagogically suitable methods for educational outreach initiatives in the Canadian north. I examined northern resident and educator experiences with integrating Indigenous and Western ways of knowing, identified factors supporting educational outreach initiatives, and provided recommendations on how to strengthen educational outreach partnerships. Results show that institutional barriers discourage researchers from participating in educational outreach. Northern residents and educators viewed integrative science as an effective method to engage students in Indigenous and Western science, and to encourage collaborative educational outreach partnerships amongst outreach stakeholders.
52

Speciation genomics : A perspective from vertebrate systems

Vijay, Nagarjun January 2016 (has links)
Species are vital entities in biology. Species are generally considered to be discrete entities, consisting of a group of (usually interbreeding) individuals that are similar in phenotype and genetic composition, yet differ in significant ways from other species. The study of speciation has focussed on understanding general evolutionary mechanisms involved in the accumulation of differences both at the genetic and phenotypic level. In this thesis, I investigate incipient speciation, an early stage of divergence towards evolutionary independence in closely related natural populations. I make ample use of recent advances in sequencing technology that allow 1) characterizing phenotypic divergence at the level of the transcriptome and 2) delineate patterns of genetic variation at genome-scale from which processes are inferred by using principles of population genetic theory. In the first paper, we assembled a draft genome of the hooded crow and investigated population differentiation across a famous European hybrid zone. Comparing sequence differentiation peaks between and within the colour morphs, we could identify regions of the genome that show differentiation only between colour morphs and that could be related to gene expression profiles of the melanogenesis pathway coding for colour differences. The second paper expands on the first paper in that it includes crow population samples from across the entire Palaearctic distribution spanning two additional zones of contact between colour morphs. The results suggest that regions associated with selection against gene flow between colour morphs were largely idiosyncratic to each contact zone and emerged against a background of conserved 'islands of differentiation' due to shared linked selection. The third paper focusses on five killer whale ecotypes with distinct feeding and habitat specific adaptations. Differing levels of sequence differentiation between these ecotypes places them along a speciation continuum and provides a unique temporal cross-section of the speciation process. Using genome scans we identified regions of the genome that show ecotype specific differentiation patterns which might contain candidate genes involved in adaptation. In the fourth and final paper, I assumed a comparative genomic perspective to the problem of heterogeneous genomic differentiation during population divergence. The relatively high correlations in the diversity landscapes as well as differentiation patterns between crow, flycatcher and Darwin's Finch populations is best explained by conservation in broad-scale recombination rate and/or  association with telomeres and centromeres conducive to shared, linked selection.
53

An Evaluation of the School Choice Plan in Charlotte-Mecklenburg Schools and its Perceived Effects on Academic Achievement for all Students

Cline, Terry Lee 21 November 2006 (has links)
Does ethnicity of the student prevent equal levels of learning at an equal pace? Are schools required to teach all children effectively, no matter what their socio-economic status, gender, or ethnicity? Educators and researchers have longed for the answers to these questions. For years, educators have been looking for ways to teach children in schools that are racially identifiable and have the highest percentages of children on free and reduced lunch. School districts that have choice as a way of assigning students are increasing the number of racially identifiable schools. In Charlotte-Mecklenburg Schools, a choice plan was implemented in June 2001. That plan created more schools of poverty within the district. The district also offered additional resources, teacher incentives, and financial assistance as a way to leverage the student make-up of the school district and the individual schools at all levels. / Ed. D.
54

The Japanese Experience in Virginia, 1900s-1950s: Jim Crow to Internment

Ito, Emma T 01 January 2017 (has links)
This thesis addresses how Japanese and Japanese Americans may have lived and been perceived in Virginia from 1900s through the 1950s. This work focuses on their positions in society with comparisons to the nation, particularly during the “Jim Crow” era of “colored” and “white,” and after the bombing of Pearl Harbor in 1941. It highlights various means of understanding their positions in Virginia society, with emphasis on Japanese visitors, marriages of Japanese in Virginia, and the inclusion of Japanese in higher education at Roanoke College, Randolph-Macon College, William and Mary, University of Virginia, University of Richmond, Hampden-Sydney College, and Union Theological Seminary. It also takes into account the Japanese experience in Virginia during Japanese internment, while focusing on the Homestead, Virginia, as well as the experiences of Japanese students and soldiers, which ultimately showed Virginia was distinct in its mild treatment towards the Japanese as compared to the West Coast.
55

Portraiture and Text in African-American Illustrated Biographical Dictionaries, 1876 to 1917

Williams, Dennis, II 01 January 2014 (has links)
Containing portraiture and biography as well as protest text and affirmative text, African- American Illustrated biographical dictionaries made from 1876 to 1917 present Social Gospel ideology and are examples of Afro-Protestantism. They are similar to the first American illustrated biographical dictionaries of the 1810s in that they formed social identity after national conflict while contesting concepts of social inferiority. The production of these books occurred during the early years of Jim Crow, a period of momentous change to the legal and social fabric of the United States, and because of momentous changes in modern American print industries. While portraits within the books simultaneously form, blur, and stabilize identity, biographies convey themes of perseverance, social equity, and social struggle. More specifically, text formed an imagined community in the African-American middle class imaginary. It worked together with image to help create a proto-Civil Rights social movement identity during the beginning of racial apartheid.
56

"If negroes were to vote, I would persist in opening the door to females" : alliances et mésalliances autour du vote des femmes et des Noirs aux États-Unis, 1860-1920 / "Neither Women nor Blacks [Will] Get the Ballot" : alliances and dissociations over female and Black suffrage in the USA, 1860-1920

Sylla, Salian 19 January 2018 (has links)
Au sortir de quatre années d’une guerre fratricide, les États-Unis s’engageaient sur la voie de la Reconstruction, période qui généra des questions autour de la liberté. Deux catégories étaient au cœur d’une actualité faite de rebondissements multiples : les Noirs et les femmes. Les uns parce que leurs soutiens abolitionnistes souhaitaient obtenir une citoyenneté immédiate (“This is the Negro’s hour”) ; les autres parce qu’elles étaient les alliées de longue date des mêmes abolitionnistes et réclamaient dorénavant le suffrage. Ce fut le début d’alliances, de mésalliances entre les hommes noirs, les suffragists, les femmes noires et leurs soutiens et adversaires respectifs, pris qu’ils étaient dans les péripéties de luttes et de causes qui, bien que complémentaires et concomitantes, demeurèrent souvent différentes voire divergentes sur le plan des principes et des stratégies de lutte, ce qui mena parfois à une hostilité réciproque. Tous entrèrent ainsi dans un jeu continu entre universalisme et particularisme (s) jusqu’à l’avènement du vote féminin (Sud mis à part) en 1920 puis du Voting Right Act (1865). Que la réussite des un(e)s dépendît ou non de la victoire des autres, les défaites successives des un(e)s et des autres montraient quant à elles les réticences d’une société traversée par les convulsions occasionnées par ses contradictions d’origine : depuis qu’elle avait proclamé tous les hommes (hormis les Noirs, les Amérindiens et les femmes) égaux. L’inclusion électorale des Noirs et des femmes fut effective au terme de plus d’un siècle de luttes, d’alliances et de mésalliances qui se succédèrent au milieu de cycles successifs d’adhésions ou d’oppositions souvent tumultueuses d’un bout à l’autre de l’échiquier politique. / In the wake of a tragic civil war, the United States entered a period of Reconstruction that aroused many questions about the notion of liberty. Two groups were propelled into the center of the country’s public debate: Blacks and women. While the former became a central issue because their abolitionist allies wanted them to garner immediate citizenship (“This is the Negro’s hour”), the latter were trying to catch public attention because they had been longtime allies to the same abolitionists and were now claiming their own enfranchisement. That was the inception of a long period made of alliances interspersed with moments of blatant disagreement and even separation between black male militants, suffragists, black female franchise advocators, and their respective supporters or opponents. They were all caught in the twists and turns of struggles and causes that complemented one another. Though their motives were concomitant and compatible, they remained fundamentally distinct, even divergent in terms of principles and strategies, which sometimes sparked mutual hostility. They all entered a cycle of actions oscillating between a universal and a particular claim of the franchise. This situation prevailed until the advent of universal female suffrage in 1920 (except for black women in the South). Whether or not the success or failure of black males depended on the defeat of women, the successive defeats of both groups pointed out the reluctance of a society undergoing the convulsions sparked by its original contradictions stemming from the very period when it declared all men equal; all except Indians, Blacks, and women. The final enfranchisement of both women and Blacks took more than a century of alliances and dissociations in the midst of a tumult of successive support or opposition across the country’s political spectrum.
57

Thermal and Quantum Analysis of a Stored State in a Photonic Crystal CROW Structure

Oliveira, Eduardo M. A. 20 November 2007 (has links)
"Photonic crystals have recently been the subject of studies for use in optical signal processing. In particular, a Coupled Resonator Optical Waveguide (CROW) structure has been considered by M. F. Yanik and S. Fan in “Stopping Light All Optically” for use in a time-varying optical system for the storage of light in order to mitigate the effects of waveguide dispersion. In this thesis, the effects of the thermal field on the state stored in such a structure is studied. Through simulation, this thesis finds that when this structure is constructed of gallium arsenide cylinders in air, loss of the signal was found to be caused by free-carrier absorption, and the decay of the signal dominates over thermal spreading of the optical signal’s spectrum."
58

"Poetry in the making" : Ted Hughes and the art of writing

Smith, Carrie Rachael January 2013 (has links)
This study takes as its focus Ted Hughes’s composition techniques throughout his career, arguing that his self-conscious experimentation with the processes by which he wrote affected the style and subject matter of his work. Hughes’s poetry has lent itself to a number of familiar critical approaches, focusing on his preoccupation with mythology, his interaction with the natural world and his creative partnership with his first wife, Sylvia Plath. Yet no study, until now, has looked systematically at his literary drafts and the extent to which Hughes’s method of composition radically altered during his writing career. Archive material at Emory University, accessible since 2000, and new archive materials held at the British Library and made available for study for the first time in 2010, have opened up possibilities for much greater depth of research into Hughes’s writing processes and the birth and evolution of individual poems. By engaging with these materials, my research complements new studies which are tackling under-examined areas of Hughes’s work, whilst contributing more broadly to an increased awareness of the central importance of archival work in the study of literature. Literary manuscript drafts have often been used to study writers whose writing methods consciously foreground the drafting process. Whilst Hughes has not previously been considered in this light, my original investigations into his archival materials reveal a poet for whom the nature of the compositional process was a central concern which defines and redefines his poetry across his career.
59

African American Parents’ Perceptions of Public School: African American Parents’ Involvement in Their Childrens’ Educations

Howard, Eric D 01 August 2015 (has links)
The goals for public schools are to educate all students so that they may attend colleges and/or develop relevant job and citizenship skills. African American students enrolled in American public schools struggle to keep up academically, revealing a so called “achievement gap.” Consequently, many African American children are unable to realize their potential and participate as successful contributing citizens. This study examined how African American parents might engage in their children’s schooling and how schools might support this participation to better meet the needs of these students. The segregation and racism historically practiced in public schools has led to negative perceptions between educators and African American families and communities. The gap in traditional measures of academic achievement between Black and White children has been debated and analyzed by scholars, legislators, and practitioners for decades. School based issues associated with this trend are lower teacher expectations for students of color, lack of curriculum rigor, effective teacher development and training, inadequate resources, tracking of African American students into less demanding programs, a lack of appreciation for Black cultures and inappropriate/misguided school administration. This study examines African American parents’ perceptions of public education and how it impacts Black student success and offers a synopsis of significant events that may have shaped some of these perceptions. Findings include evidence that African American parents perceive that schools do not reach out to them to foster a partnership or encourage participation, but most often engage them when behavior or academic issues arise with their children. Additional areas for investigation surface by the findings include evidence that the disconnect perhaps does not come from a lack of engagement, but from a lack of active participation and partnership. Parents are left feeling as if they have no influence on school culture. Recommendations for improving school and family interactions that may improve African American student outcomes include teacher led parent-school partnerships, communication outside the classroom and school setting, and consideration for cultural differences.
60

The Formation and Development of Chinese Communities in Atlanta, Augusta, and Savannah, Georgia: From Sojourners to Settlers, 1880-1965

Bronstein, Daniel Aaron 29 April 2009 (has links)
The study examines the formation and development of Chinese American populations in Augusta, Savannah, and Atlanta, Georgia from the beginnings of Chinese Exclusion period through the passage of the Immigration Act of 1965. Although people of Chinese ancestry were in an ambiguous position upon their arrival in the 1880s within the black-white dyad that defined southern race relations, they were able to negotiate this system, transforming themselves from being perceived as “outsiders” before the 1940s to being treated as “honorary whites” by the late 1960s. To explore this transition, this project analyzes generational differences between immigrants and their children. Before the 1920s, the mostly Chinese immigrant male population concerned themselves with establishing viable businesses for sending remittances back to family in China and creating social institutions that helped the men cope with decades of separation from their families. The men avoided possible conflict with Jim Crow by having their businesses and residences in black or immigrant areas. Some men cultivated better relations with whites by attending Sunday schools that catered to Chinese immigrants. The mutation from “outsider” to “honorary white” status began when prosperous Chinese men started sending for wives to join them in the 1910s, thus ushering in a new pattern of planned long-term settlement in the state. Families successfully challenged the older perception by joining white churches, enrolling their children in white schools, and building social ties with white community leaders. Second generation Chinese Americans reaped the benefits of this strategy in the 1950s and 1960s by gaining access to housing in white neighborhoods, employment opportunities in white-collar occupations, and acceptance as partners in marriages with European Americans.

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