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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.
1

Beyond the ‘Bedrooms of the Nation’: An Interpretative Phenomenological Analysis of Canadian Adolescents with Lesbian, Gay, or Bisexual-identified Parents

McNeilly, Kenneth 17 December 2012 (has links)
Although parenting by lesbian, gay, and bisexual-identified (LGB) individuals has attracted increasing research attention over the past few decades, relatively little focus has been given to the personal identity development of adolescents raised in such families. There is scant qualitative data that describes the phenomenon from the viewpoint of Canadian adolescents; this study aims to give voice to those with parents that identify as non-heterosexual. In semi- structured interviews, participants were asked to explain how they made sense of being from an LGB-led family, particularly within the contexts of school and Canadian society, and of what unique needs they perceived families like theirs to have. For inclusion in the study, each participant needed to have at least one LGB-identified parent. Additionally, they needed to be a current or recent student in an Ontario secondary school. A convenience sampling method was used to locate nine (N=9) participants. Three of the participants were male, and six were female. All participants were Canadian-born English speakers who ranged in age from 13 to 19 years old, with a mean age of 17.5. The interview schedule was constructed with input from existing narrative psychology literature, consultation with fellow students and faculty, and inspiration from other semi- structured protocols such as The Life Story Interview (McAdams, 2008). Interpretative Phenomenological Analysis (IPA) was employed to organize and evaluate responses. Thematic findings were organized within three domains. First, family-related themes were considered, such as interviewees’ responses to parental disclosures of an LGB identity, responses of extended family members, and perceived advantages of having LGB-identified parents. Second, school-related themes were found, such as how children choose to disclose their parents’ sexual identity to peers. Finally, themes related to queer identity were considered, since many participants revealed their parents’ sexual identity intersected with other narratives (e.g., being Canadian, being heterosexual, the master narrative of heteronormativity, etc.) to create multiple layers to their own sense of self. The study endeavours to add a qualitative approach to the literature so that Canadian adolescents’ narratives are represented in the overall understanding of the phenomenon of LGB- led families. It also has potential to impact the development of school policies and curricula and to enrich the quality of life for LGB-led families.
2

Being ethical : how process drama assists pre-service drama teachers to reflect on professional ethics

Hogan, Sharon January 2008 (has links)
This research thesis focuses on the experiences of pre-service drama teachers and considers how process drama may assist them to reflect on key aspects of professional ethics such as mandatory codes or standards, principled moral reasoning, moral character, moral agency, and moral literacy. Research from higher education provides evidence that current pedagogical approaches used to prepare pre –professionals for practice in medicine, engineering, accountancy, business, psychology, counselling, nursing and education, rarely address the more holistic or affective dimensions of professional ethics such as moral character. Process drama, a form of educational drama, is a complex improvisational group experience that invites participants to create and assume roles, and select and manage symbols in order to create a fictional world exploring human experience. Many practitioners claim that process drama offers an aesthetic space to develop a deeper understanding of self and situations, expanding the participant’s consciousness and ways of knowing. However, little research has been conducted into the potential efficacy of process drama in professional ethics education for pre-professionals. This study utilizes practitioner research and case study to explore how process drama may contribute to the development of professional ethics education and pedagogy.
3

Beyond the ‘Bedrooms of the Nation’: An Interpretative Phenomenological Analysis of Canadian Adolescents with Lesbian, Gay, or Bisexual-identified Parents

McNeilly, Kenneth 17 December 2012 (has links)
Although parenting by lesbian, gay, and bisexual-identified (LGB) individuals has attracted increasing research attention over the past few decades, relatively little focus has been given to the personal identity development of adolescents raised in such families. There is scant qualitative data that describes the phenomenon from the viewpoint of Canadian adolescents; this study aims to give voice to those with parents that identify as non-heterosexual. In semi- structured interviews, participants were asked to explain how they made sense of being from an LGB-led family, particularly within the contexts of school and Canadian society, and of what unique needs they perceived families like theirs to have. For inclusion in the study, each participant needed to have at least one LGB-identified parent. Additionally, they needed to be a current or recent student in an Ontario secondary school. A convenience sampling method was used to locate nine (N=9) participants. Three of the participants were male, and six were female. All participants were Canadian-born English speakers who ranged in age from 13 to 19 years old, with a mean age of 17.5. The interview schedule was constructed with input from existing narrative psychology literature, consultation with fellow students and faculty, and inspiration from other semi- structured protocols such as The Life Story Interview (McAdams, 2008). Interpretative Phenomenological Analysis (IPA) was employed to organize and evaluate responses. Thematic findings were organized within three domains. First, family-related themes were considered, such as interviewees’ responses to parental disclosures of an LGB identity, responses of extended family members, and perceived advantages of having LGB-identified parents. Second, school-related themes were found, such as how children choose to disclose their parents’ sexual identity to peers. Finally, themes related to queer identity were considered, since many participants revealed their parents’ sexual identity intersected with other narratives (e.g., being Canadian, being heterosexual, the master narrative of heteronormativity, etc.) to create multiple layers to their own sense of self. The study endeavours to add a qualitative approach to the literature so that Canadian adolescents’ narratives are represented in the overall understanding of the phenomenon of LGB- led families. It also has potential to impact the development of school policies and curricula and to enrich the quality of life for LGB-led families.
4

Estudos da relação quantitativa estrutura-atividade (QSAR) de adutos de Morita-Baylis-Hillman bioativos contra Leishmania amazonensis / Quantitative Structure-Activity Relationship (QSAR) Studies of Morita-Baylis- Hillman Adducts bioactive against Leishmania amazonensis.

Alencar Filho, Edilson Beserra de 14 December 2012 (has links)
Made available in DSpace on 2015-05-14T13:21:44Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 4637140 bytes, checksum: f9c50e9a2115f5a805442d163ed54f1e (MD5) Previous issue date: 2012-12-14 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The Morita-Baylis-Hillman Adducts (MBHA) is a class of molecules studied by our research group on synthetic, theoretical and bioactivity aspects. In this work, we present Quantitative Structure-Activity Relationship (QSAR) models involving 32 aromatic MBHA. Initially, the most stable conformations of thirty-two MBHA were investigated by theoretical methods, which were used to construct models. For this study, were obtained potential energy curves using AM1 semi-empirical method, considering rotational degrees of freedom (sigma bonds). From these curves, the less energy conformation to each molecule was selected and optimized at B3LYP/6- 31+G(d) level, considering solvent effects through Polarizable Continuum Model (PCM). Proton Nuclear Magnetic Ressonance data are in agreement with the conformational study. Intramolecular Hydrogen Bonds (IHB) are presents in the most of the studied compounds, according to structural characterization and QTAIM calculations. Curiously, compounds that showed hydrogen bonds involving the nitro and hydroxyl groups have the best values of biological activity (IC50). An explanation is based on redox mechanism of action of nitrocompounds. NBO (Natural Bond Orbital) charges and LUKO (Lowest Unoccupied Kohn-Sham Orbitals) analysis at the ortho-nitro group are in agreement with these analyses. Considering quantum calculations and structural observations, four descriptors were selected a priori and submitted to a QSAR study using PLS (Partial Least Squares) and MLR (Multiple Linear Regression) modeling. A second QSAR approach was made from the another set of descriptors obtained through the online platform E-DRAGON, which were submitted to a variable selection method. The quality parameters obtained for models indicate that both are robust and predictive. / Os Adutos de Morita-Baylis-Hillman (AMBH) compreendem uma classe de moléculas investigadas por nosso grupo de pesquisas nos aspectos sintéticos, teóricos e de bioatividade. Neste trabalho, apresentamos modelos de Relação Quantitativa entre a Estrutura Química e a Atividade Leishmanicida (QSAR) envolvendo 32 AMBH aromáticos. Deste modo, inicialmente foram investigadas as conformações mais estáveis de cada composto através de métodos teóricos, as quais foram utilizadas na construção dos modelos. Foram obtidas curvas de energia potencial utilizando o método semi-empírico AM1, considerando graus de liberdade rotacionais (ligações sigma). A partir destas curvas, a conformação de menor energia para cada molécula foi selecionada e otimizada ao nível B3LYP/6-31+G(d), considerando os efeitos do solvente aquoso usando PCM ( Polarizable Continuum Model ). Dados espectroscópicos de Ressonância Magnética Nuclear de prótons corroboraram o estudo conformacional. Ligações de Hidrogênio Intramoleculares (LHI) se mostraram presentes na maioria das moléculas estudadas, conforme caracterização estrutural e cálculos QTAIM ( Quantum Theory Atoms in Molecules ). Curiosamente, os compostos que apresentaram Ligações de Hidrogênio envolvendo o grupo nitro (NO2) e a hidroxila (OH) possuem melhores valores de atividade biológica (menor IC50). Uma explicação está baseada no mecanismo de ação redox de nitrocompostos. Observação das cargas NBO ( Natural Bond Orbitals ) e análise dos orbitais de fronteira LUKO ( Lowest Unoccupied Kohn-Sham Orbitals ) ao nível do grupo orto-nitro estão de acordo com estas análises. Considerando os cálculos quânticos, bem como observações estruturais, quatro descritores foram selecionados a priori e submetidos a um estudo QSAR ( Quantitative Structure- Activity Relationships ) utilizando modelagem PLS ( Partial Least Squares ) e MLR ( Multiple Linear Regression ). Uma segunda abordagem QSAR foi realizada a partir de outro conjunto de descritores obtidos através da plataforma online E-DRAGON, os quais foram submetidos ao método de seleção de variáveis OPS ( Ordered Predictor Selection ). Os parâmetros de qualidade obtidos para os modelos indicam que ambos são robustos e preditivos.
5

Investigation, design and implementation of circular-polarised antennas for satellite mobile handset and wireless communications. Simulation and measurement of microstrip patch and wire antennas for handheld satellite mobile handsets and investigations of polarization polarity, specific absorption rate, and antenna design optimization using genetic algorithms.

Khalil, Khaled January 2009 (has links)
The objectives of this research work are to investigate, design and implement circularly-polarized antennas to be used for handheld satellite mobile communication and wireless sensor networks. Several antennas such as Quadrifilar Spiral Antennas (QSAs), two arm Square Spiral and stripline or coaxially-fed microstrip patch antennas are developed and tested. These antennas are investigated and discussed to operate at L band (1.61-1.6214GHz) and ISM band (2.4835-2.5GHz) A substantial size reduction was achieved compared to conventional designs by introducing special modifications to the antenna geometries. Most of the antennas are designed to produce circularly-polarized broadside-beam except for wireless sensor network application a circularly-polarized conical-beam is considered. The polarization purity and Specific Absorption Rate (SAR) of two dual-band antennas for satellite-mobile handsets next to the human head are investigated and discussed, using a hybrid computational method. A small distance between the head and the handset is chosen to highlight the effects of the relatively high-radiated power proposed from this particular antenna. A Genetic Algorithm in cooperation with an electromagnetic simulator has been introduced to provide fast, accurate and reliable solutions for antenna design structures. Circularly-polarized quadrifilar helical antenna handset and two air-dielectric microstrip antennas were studied. The capabilities of GA are shown as an efficient optimisation tool for selecting globally optimal parameters to be used in simulations with an electromagnetic antenna design code, seeking convergence to designated specifications. The results in terms of the antenna size and radiation performance are addressed, and compared to measurements and previously published data.
6

Accountability for the Implementation of Secondary Visual Arts Standards in Utah and Queensland

Derby, John K. 15 March 2005 (has links)
Utah and the majority of states have adopted mandatory standards for visual arts, yet no accountability measures have been established. Consequently, it is impossible to determine if standards are being addressed in the art classroom and aggregate grades are subjective. Queensland, Australia instituted a system of moderated school-based assessment (moderation) in 1971, whereby assessment is accomplished locally, then verified by peer experts. Queensland ensures that standards are addressed in curricula and assessment and that exit grades are reliable and comparable. Research has shown that Utah and Queensland share comparable visual arts standards and similar demographics. Queensland moderation has been extensively studied for solutions to Utah and U.S. accountability problems. Queensland teachers submit curricula, assessment tasks, and assessed student work to the Queensland Studies Authority (QSA), which is responsible for moderation. QSA suggests modifications where appropriate, thus ensuring accuracy. Schools are then compared according to group performance on a standardized core skills test and aggregate grades are scaled, resulting in student rankings. Research has revealed that Queensland visual arts teachers widely approve of moderation. Accountability validates good teaching and promotes diligence. Teachers also appreciate QSA curriculum and assessment guidelines. Because these are regulated, QSA has been able to promote progressive directives effectively, including integrated authentic assessment and student-directed conceptual approaches to art. Queensland has constantly striven for improvement through research and teacher feedback. Consequently, Queensland is considered a global leader in school-based assessment. Art education literature implies that accountability for visual arts education is inevitable. Arts educators strongly oppose traditional external testing. Moderation is the proven alternative to traditional testing. While other models of moderation exist, the QSA model is similar in theory to the predominant Utah and U.S. philosophy of standards-based assessment. At the same time, the QSA model offers flexible options that allow emerging theories to be embraced. The research, then, suggests that Utah and other states should consider implementing versions of moderated school-based assessment based on the success of QSA. The thesis concludes with recommendations for the U.S., and a practical curriculum guide that embraces curriculum and assessment merits of Queensland visual arts education.
7

Investigation, design and implementation of circular-polarised antennas for satellite mobile handset and wireless communications : simulation and measurement of microstrip patch and wire antennas for handheld satellite mobile handsets and investigations of polarization polarity, specific absorption rate, and antenna design optimization using genetic algorithms

Khalil, Khaled January 2009 (has links)
The objectives of this research work are to investigate, design and implement circularly-polarized antennas to be used for handheld satellite mobile communication and wireless sensor networks. Several antennas such as Quadrifilar Spiral Antennas (QSAs), two arm Square Spiral and stripline or coaxially-fed microstrip patch antennas are developed and tested. These antennas are investigated and discussed to operate at L band (1.61-1.6214GHz) and ISM band (2.4835-2.5GHz) A substantial size reduction was achieved compared to conventional designs by introducing special modifications to the antenna geometries. Most of the antennas are designed to produce circularly-polarized broadside-beam except for wireless sensor network application a circularly-polarized conical-beam is considered. The polarization purity and Specific Absorption Rate (SAR) of two dual-band antennas for satellite-mobile handsets next to the human head are investigated and discussed, using a hybrid computational method. A small distance between the head and the handset is chosen to highlight the effects of the relatively high-radiated power proposed from this particular antenna. A Genetic Algorithm in cooperation with an electromagnetic simulator has been introduced to provide fast, accurate and reliable solutions for antenna design structures. Circularly-polarized quadrifilar helical antenna handset and two air-dielectric microstrip antennas were studied. The capabilities of GA are shown as an efficient optimisation tool for selecting globally optimal parameters to be used in simulations with an electromagnetic antenna design code, seeking convergence to designated specifications. The results in terms of the antenna size and radiation performance are addressed, and compared to measurements and previously published data.
8

The Social and Cultural Conditions for Sexual and Gender Minority (SGM) Students in a Rural Community: A Case Study of Educators’ Perspectives

Kelly, Wade B Unknown Date
No description available.

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