In recent decades, recruitment and retention efforts to meet workforce demands and broaden participation in colleges of engineering across the country have focused primarily on catering to the needs of first-year, traditional age college students who matriculate from high school into 4-year institutions. While these efforts have moved the needle on enrollment and retention for undergraduate students in engineering, growth and improvement measures have started to taper in recent years. To meet current and future workforce demands for more STEM professionals in the United States, we must be creative about how to move beyond this ceiling effect; and, great potential exists among the growing population of students who begin their pursuit of a higher education at institutions other than 4-year public/private colleges. The purpose of this study is to increase understanding of engineering transfer students and their experiences at both sending and receiving institutions. Part of a larger mixed methods research investigation, this study draws on survey data from a sample of 1,070 engineering transfer students who transferred to one of four 4-year Texas institutions as new engineering students between 2007 and 2014. Research sites include four of the top ten producers of U.S. Hispanic/Latino engineers; and the framework for transfer student capital was used to organize this study's data collection and analytical plan. Structured as a manuscript style dissertation, this investigation offers a synthesis of recent literature on engineering transfer students and yields important findings on engineering transfer student movement through the higher education system at two distinct phases: 1) at the beginning of their higher education pathways in an investigation of students' reasons for starting at another institution and factors that influence their decisions to transfer; and 2) at the phase immediately following transfer in an investigation of the transition experience for students who transfer to a 4-year institution. For each phase, I identify emergent constructs and explore differences across subgroups of engineering transfer students (i.e., type of institution - selective versus open enrollment; type of transfer pathway - lateral versus vertical; student status as Hispanic/Latino; student status as first generation). This research joins and expands the small body of literature on engineering transfer students and brings data to higher education administrators so they can make more informed adjustments to existing institutional policies and practices that impact students as they transfer to engineering programs at 4-year institutions. Last, findings from this study also advance the current state of community college research on transfer students more generally. / PHD / In recent decades, recruitment and retention efforts to meet workforce demands and broaden participation in colleges of engineering across the country have focused primarily on catering to the needs of first‐year, traditional age college students who matriculate from high school into 4‐year institutions. While these efforts have moved the needle on enrollment and retention for undergraduate students in engineering, growth and improvement measures have started to taper in recent years. To meet current and future workforce demands for more STEM professionals in the United States, we must be creative about how to move beyond this ceiling effect; and, great potential exists among the growing population of students who begin their pursuit of a higher education at institutions other than 4‐year public/private colleges. The purpose of this study is to increase understanding of engineering transfer students and their experiences at both sending and receiving institutions. Part of a larger mixed methods research investigation, this study draws on survey data from a sample of 1,070 engineering transfer students who transferred to one of four 4‐year Texas institutions as new engineering students between 2007 and 2014. Research sites include four of the top ten producers of U.S. Hispanic/Latino engineers; and the framework for transfer student capital was used to organize this study's data collection and analytical plan. This investigation offers a synthesis of recent literature on engineering transfer students and yields important findings on engineering transfer student movement through the higher education system at two distinct phases: 1) at the beginning of their higher education pathways in an investigation of students' reasons for starting at another institution and factors that influence their decisions to transfer; and 2) at the phase immediately following transfer in an investigation of the transition experience for students who transfer to a 4‐year institution. For each phase, I identify emergent themes and explore differences across subgroups of engineering transfer students (i.e., type of institution ‐ selective versus open enrollment; type of transfer pathway ‐ lateral versus vertical; student status as Hispanic/Latino; student status as first generation). This research helps administrators, faculty members, and staff at sending and receiving institutions key in on the more problematic aspects of transfer that require additional attention. Moreover, research findings can be used by administrators, faculty members, and staff at receiving institutions to design or customize programs and services to address pressing needs and further enhance engineering transfer students’ perceptions of fit with their new institutions. Lastly, schools of engineering interested in boosting student enrollment can use findings from this study to better position themselves to appeal to and perhaps capture a larger market of engineering transfer students in the future.

<p>Transition from laminar to turbulent flow has beentraditionally studied in terms of exponentially growingeigensolutions to the linearized disturbance equations.However, experimental findings show that transition may occuralso for parameters combinations such that these eigensolutionsare damped. An alternative non-modal growth mechanism has beenrecently identified, also based on the linear approximation.This consists of the transient growth of streamwise elongateddisturbances, mainly in the streamwise velocity component,called streaks. If the streak amplitude reaches a thresholdvalue, secondary instabilities can take place and provoketransition. This scenario is most likely to occur in boundarylayer flows subject to high levels of free-stream turbulenceand is the object of this thesis. Different stages of theprocess are isolated and studied with different approaches,considering the boundary layer flow over a flat plate. Thereceptivity to free-stream disturbances has been studiedthrough a weakly non-linear model which allows to disentanglethe features involved in the generation of streaks. It is shownthat the non-linear interaction of oblique waves in thefree-stream is able to induce strong streamwise vortices insidethe boundary layer, which, in turn, generate streaks by thelift-up effect. The growth of steady streaks is followed bymeans of Direct Numerical Simulation. After the streaks havereached a finite amplitude, they saturate and a new laminarflow, characterized by a strong spanwise modulation isestablished. Using Floquet theory, the instability of thesestreaks is studied to determine the features of theirbreakdown. The streak critical amplitude, beyond which unstablewaves are excited, is 26% of the free-stream velocity. Theinstability appears as spanwise (sinuous-type) oscillations ofthe streak. The late stages of the transition, originating fromthis type of secondary instability, are also studied. We foundthat the main structures observed during the transition processconsist of elongated quasi-streamwise vortices located on theflanks of the low speed streak. Vortices of alternating signare overlapping in the streamwise direction in a staggeredpattern.</p><p><strong>Descriptors:</strong>Fluid mechanics, laminar-turbulenttransition, boundary layer flow, transient growth, streamwisestreaks, lift-up effect, receptivity, free-stream turbulence,nonlinear mechanism, streak instability, secondary instability,Direct Numerical Simulation.</p> / QC 20100518

Essa pesquisa tem como objeto a musealização da arqueologia marítima na cidade de Santos. Para tanto, recorreu ao estudo de recepção com estudantes de uma escola municipal de Santos visando a coletar dados norteadores de política de comunicação inerente ao processo de musealização. O propósito é trabalhar com a arqueologia pública, utilizando-se de estratégias participativas que aproxime as pessoas da ciência arqueológica considerando o museu e seu público. O estudo apresenta as pesquisas em arqueologia na cidade de Santos. Essas investigações trouxeram outras possibilidades de leituras para a história da cidade oriundas do campo arqueológico. Porém, muitas das coleções geradas por elas estão guardadas em outras cidades. Por esse motivo, é de suma importância que esse material permaneça em Santos, para que a comunidade santista tenha acesso a esses conhecimentos via comunicação museológica e a linguagem expositiva. O museu assume contemporaneamente um importante papel, para instigar seu público a participar da valorização e preservação desse patrimônio. Como patrimônio da união os vestígios arqueológicos marítimos musealizados devem estar a serviço da sociedade e a sociedade a serviço da preservação de forma a construir caminhos e soluções coletivamente. / This research has the objective of musealization of maritime archaeology in the city of Santos. For accomplishing that goal this research used the study of receptivity with students of a city public school to collect guiding data of the communication policy inherent to that process of musealization. The purpose is to work with the public archaeology using participative strategies that gather the people and the archaeological science, taking into consideration the museum and its audience. This study presents archaeological researches in the city of Santos. From those searches new possibilities of revisiting the history of the city arose originated from the archaeological field. However many of those archaeological collections are kept in other cities. For this reason it is of utmost importance that those archaeological findings stay in Santos so that its community has access to such knowledge through museological communication and expositive language. So the museum assumes contemporaneously a most important role by instigating its audience to participate in the valuation and preservation of such asset. As a Brazilian asset those musealized archaeological vestiges should stay to the service of the society and the society should stay to the service of preservation so to collectively build ways and solutions.

Made available in DSpace on 2016-07-27T13:47:48Z (GMT). No. of bitstreams: 1 DARLYSON MOYSES ALVES FEITOSA.pdf: 1214034 bytes, checksum: 1b81048f4a31214e567aa4c0a936941d (MD5) Previous issue date: 2009-06-29 / Epistle to the Hebrews: a theocentric perspective is a dissertation which treats of the various affirmations about God in the biblical book known today as the Epistle to the Hebrews. This Epistle has been traditionally studied from the Christological point of view, due to the strong emphasis in the book on Christology; however, this present study considers the epistle from another perspective, due basically to one reason: the author refers to God in every section of this work. The Greek text was used as the basis from which the various declarations about God were extracted, while Portuguese versions of the Bible served as references for a better comprehension of the various possibilities of translations. / Epístola aos Hebreus: Uma Perspectiva Teocêntrica é uma dissertação que trata de apresentar as diversas declarações sobre Deus no livro da Bíblia hoje conhecido como Epístola aos Hebreus. Esta Epístola tem sido tradicionalmente estudada a partir da forte ênfase na cristologia, de modo que a presente pesquisa a considera a partir de uma outra perspectiva, devido basicamente a uma razão: o autor se refere a Deus em todas as seções desta obra. As diversas menções sobre Deus foram extraídas do texto grego, sendo que as versões da Bíblia em português serviram sempre de referencial para uma melhor compreensão das diversas possibilidades de tradução.

Made available in DSpace on 2016-04-25T18:39:34Z (GMT). No. of bitstreams: 1 Evaneide Barbosa de Oliveira.pdf: 681540 bytes, checksum: 0521a02d04d1029f80a2781303da1990 (MD5) Previous issue date: 2010-11-25 / The objective of this work is the implementation of a study that allows the analysis of the Problem-based learning (PBL) methodology, to clearly identify the possible contributions to the teaching learning process of Accounting. This study is characterized by the Exploratory Search design to achieves deeply the knowledge of the Problem-based learning (PBL) in such way that can take it as a contribution source to the Accounting Science learning. At the same time, this study is based on the methodological approach in the qualitative research, where explores the observation and interviewing techniques in order to establish both analysis the content analysis and the historical strategy analysis. This study also has some quantitative analysis method that will gather quantitative data of a specific population, using a closed question table as a sample of analysis and interpretation and measurement proceeds to this study. This study observed and highlights that the Problem-based learning (PBL) can be introduced into the Accountancy course, respecting the existent literary framework that is strongly important for this tool application success, such as the limits of the acceptability, responsibility, commitment and adequacy to meet the demand generated: the ability of solving problems, and also the need of a teaching methodologies renewal in a way that the student could develop his critical thought, logical reasoning, the introduction to the research, the teamwork, the interpersonal relationship and the conflict resolution skills. This study was made to contribute to the search topic of the Accounting Theory Program Graduate strictu sensu of PUC-SP in Accountancy and Actuarials / O objetivo desse trabalho é a realização de um estudo que possibilite a análise da metodologia do Aprendizado Baseado em Problemas (PBL), para a identificação das possíveis contribuições para o processo ensino-aprendizagem da Contabilidade. Este estudo caracterizase pelo delineamento da Pesquisa Exploratória buscando-se conhecer com maior profundidade o Aprendizado Baseado em Problemas (PBL) de modo a torná-lo uma fonte de contribuição para o ensino da Ciência Contábil. Do mesmo modo, esta pesquisa é baseada na abordagem qualitativa, que explora a técnica da observação e entrevista com o intuito de estabelecer a análise do conteúdo da pesquisa e a sua análise histórica. A pesquisa também emprega artifícios quantitativos com o objetivo de coletar dados em uma determinada população, com a utilização de um questionário fechado que serve de amostra para o procedimento de avaliação e interpretação de dados relevantes para este estudo. A pesquisa observou que o Aprendizado Baseado em Problemas (PBL) é passível de aplicação no curso de Ciências Contábeis, respeitando o arcabouço literário importante para que a ferramenta tenha sucesso, os limites de aceitabilidade, responsabilidade, compromisso e adequação de estrutura para atendimento da demanda que sua aplicação gerará com o desenvolvimento da habilidade de resolução de problemas, e também a necessidade de uma renovação das metodologias de ensino empregadas em sala de aula para que o aluno desenvolva o pensamento crítico, o raciocínio lógico, a iniciação à pesquisa, o trabalho em grupo, o relacionamento interpessoal e habilidades de resolução de conflitos. Este trabalho contribui para a linha de pesquisa da Teoria Contábil do Programa de Pós-Graduação strictu sensu da PUC-SP em Ciências Contábeis e Atuariais

As bromeliáceas são plantas ornamentais tropicais com uma grande diversidade de cores e formas que as tornam extremamente apreciadas. Os estudos da biologia floral, associado aos sistemas reprodutivos das espécies vegetais, são de fundamental importância para subsidiar a condução de programas de melhoramento genético e conservação de espécies, além de auxiliar na determinação do grau de compatibilidade entre genótipos e eventuais barreiras reprodutivas. O objetivo da presente tese é estudar aspectos da biologia floral e reprodutiva, conservação dos grãos de pólen, estudos de compostos voláteis em flores e hibridação interespecífica e intergenérica em Bromeliaceae com potencial ornamental. Foi observada grande variabilidade genética entre as espécies estudadas, no que diz respeito à morfologia dos grãos de pólen e estigma. Altas taxas de germinação e viabilidade polínica foram obtidas para as diferentes espécies, e a receptividade do estigma está relacionada com a antese. Essas características associadas têm grande importância para a fertilização e, consequentemente, para a produção de sementes, desta forma são essenciais para a produção de híbridos e conservação de espécies. Para a conservação dos grãos de pólen, o melhor resultado foi obtido com a desidratação prévia por 3 h em sílica e conservação em nitrogênio líquido (-196°C). A partir de flores de treze espécies, foram identificados 71 compostos voláteis, alguns deles com importância na indústria de alimentos, cosméticos, perfumes, indústria química e farmacêutica. Dentre as dezessete espécies estudadas, mais de 50% apresentaram autoincompatibilidade, e algumas apresentaram autogamia, demonstrando que essas espécies apresentam autopolinização espontânea. Agamospermia foi observada em apenas duas espécies. Noventa e cinco combinações entre 17 espécies de Aechmea e Ananas (Bromelioideae) e Alcantarea e Vriesea (Tillandsioideae) foram realizadas. O sucesso nas hibridações corresponde a 33,74%, sendo que 24,96% envolveram as variedades botânicas do gênero Ananas. Entre as hibridações intergenéricas, apenas duas combinações foram obtidas com sucesso: V. michaelii x Al. nahoumii e V. simplex x Al. nahoumii. As possíveis causas da autoincompatibilidade e incongruência nesses cruzamentos estão relacionadas a diferentes eventos no tubo polínico, como: deposição irregular de calose no tubo polínico; enovelamento dos tubos polínicos no estilete; paralisação do crescimento do tubo polínico no estilete, entre outros. Sugere-se que a autoincompatibilidade seja gametofítica, evitando a autofertilização. Estudos mais aprofundados contribuirão para caracterizar as causas e as potenciais medidas para superar a autoincompatibilidade. Os resultados aqui apresentados trazem contribuições importantes para estudos de hibridação em Bromeliaceae, visando à obtenção de novidades para o mercado de plantas ornamentais, bem como contribuições para a caracterização e conservação de espécies dessa importante família / Bromeliads are tropical ornamental plants with a wide variety of colors and shapes that make them widely and extremely appreciated. The study of aspects of the floral biology, associated with the reproductive systems of these species are of fundamental importance for breeding and species conservation programs, assisting in the determination of the degree of compatibility between combination of genotypes, as well as potential reproductive barriers. The aim of this research is to study aspects of floral and reproductive biology, conservation of pollen grains, studies of volatile compounds in flowers and intergeneric and interspecific hybridization in Bromeliaceae with ornamental potential. High genetic variability was observed among the species studied, regarding the morphology of the pollen grains and stigma. High rates of germination and pollen viability were observed for the different species, and stigma receptivity showed the highest at anthesis. These characteristics are of great importance for fertilization and further seed production, thus are essential for the production of hybrids and species conservation. Preservation of pollen grains, showed the best results with a 3 h dehydration pre-treatment in silica and conservation in liquid nitrogen (-196°C). A large number of volatile compounds, totally 71, were identified from flowers of thirteen species. Some of these compounds have already been shown to be important in the food industry, cosmetics, perfumes, chemical and pharmaceutical industry. Among the seventeen species, more than 50% presented selfincompatibility and some species presented autogamy, demonstrating that these species present spontaneous self-pollination. Agamospermy was observed in only two species. Ninety-five combinations among 17 species of Aechmea and Ananas (Bromelioideae) and Alcantarea and Vriesea (Tillandsioideae) were performed, with a 33.74% rate of success, with 24.96% involving the botanical varieties of Ananas. Only two, among the intergeneric combinations, were successful, V. michaelii x Al nahoumii and V. simplex x Al nahoumii. Possible causes of self-incompatibility and incongruity in these combinations were related to different events during pollen tube growth, such as the irregular deposition of callose in pollen tubes; entangled pollen tubes in the style; arrest of pollen tube growth in the style, among others. We suggest that the self-incompatibility is gametophytic, preventing selffertilization. Further studies will help to characterize the causes and potential measures to overcome self-incompatibility. The results provide important contributions to studies of hybridization in bromeliads, aiming to produce new hybrids for the ornamental plants market, as well as contributions to the characterization and conservation of this important family of plants

The Index of Receptivity to Tobacco Industry Promotion (IRTIP) is a model that is used by hundreds of articles. The causal claim based on findings from this model is even more pervasive, and has resulted in much of the modern post 1998 tobacco legislation that is still enforced. This thesis tested the link between adolescent receptivity to tobacco industry promotion and susceptibility to smoking. Pierce et al. (1998) reported that they had found a positive and causal association between receptivity and susceptibility by using IRTIP. They claimed that receptivity to tobacco industry promotion was the only significant causal factor affecting adolescent susceptibility to smoking. Exposure to peer and parental smoking was not found to be a significant effect. A review of the literature found that many sections of IRTIP differ from accepted marketing theory on how cigarette advertising and promotions affect adolescent adoption of cigarette smoking. The proxy measures used in IRTIP were shown to diverge from those previously used for measuring the constructs of Attention, Intention, Desire and Action (AIDA) in marketing communications. IRTIP also differs from previous theory by including measures that attempt to quantify the effect of tobacco premiums into a model that was designed to measure the effects of advertising.

<p>I combined comparative and experimental studies in the field and in the greenhouse to examine factors influencing reproductive success in two insect-pollinated herbs, the tristylous, selfincompatible perennial <i>Lythrum salicaria</i> and the self-compatible, biennial <i>Pedicularis palustris</i>. More specifically, I explored (i) the effects of plant population characteristics on the intensity and outcome of interactions with pollinators and seed predators, (ii) whether flower morphology affects duration of stigma receptivity, and (iii) whether damage-induced reduction in floral display reduces pollinator visitation and increases pollen limitation.</p><p>As predicted, the rate of pollinator visitation tended to increase and the number of flowers probed per plant tended to decrease with increasing population size in <i>L. salicaria</i>, but these relationships only approached statistical significance. By taking advantage of the pollen size polymorphism that is typical of many heterostylous plants, I could show that the number of compatible pollen grains received increased with population size, and that this was associated with a reduction in pollen limitation and increased seed output per flower. The deposition of high numbers of incompatible conspecific and heterospecific pollen grains did not appear to reduce seed set.</p><p>In <i>P. palustris</i>, fruit set and seed predation varied markedly among populations and years, but this variation could only partly be explained by variation in population size. Fruit set was positively related to population size, and seed predation was negatively related to population size, in one of three years. Similarly, the level of pollen limitation, which was quantified in two years, varied among populations, but was not related to population size, density or isolation.</p><p>In <i>L. salicaria</i>, both the duration of stigma receptivity and the effect of prior self-pollination on seed output varied among style morphs. These differences may contribute to morph-specific differences in pollen limitation and seed production documented in the field.</p><p>The results of a field experiment demonstrated that damage to the shoot apex may markedly reduce fruit production in <i>L. salicaria</i>, and suggested that this is mainly because damage reduces flower number. I found no evidence that a reduced floral display increased the severity of pollen limitation.</p><p>Taken together, the results show that interactions with both pollinators and herbivores may markedly affect reproductive output in the two plant species, and that the intensity of both mutualistic and antagonistic interactions vary considerably in space and time. Moreover, they are consistent with the hypothesis that pollination success should depend less on population size in selfcompatible than in self-incompatible plants.</p>

I combined comparative and experimental studies in the field and in the greenhouse to examine factors influencing reproductive success in two insect-pollinated herbs, the tristylous, selfincompatible perennial Lythrum salicaria and the self-compatible, biennial Pedicularis palustris. More specifically, I explored (i) the effects of plant population characteristics on the intensity and outcome of interactions with pollinators and seed predators, (ii) whether flower morphology affects duration of stigma receptivity, and (iii) whether damage-induced reduction in floral display reduces pollinator visitation and increases pollen limitation. As predicted, the rate of pollinator visitation tended to increase and the number of flowers probed per plant tended to decrease with increasing population size in L. salicaria, but these relationships only approached statistical significance. By taking advantage of the pollen size polymorphism that is typical of many heterostylous plants, I could show that the number of compatible pollen grains received increased with population size, and that this was associated with a reduction in pollen limitation and increased seed output per flower. The deposition of high numbers of incompatible conspecific and heterospecific pollen grains did not appear to reduce seed set. In P. palustris, fruit set and seed predation varied markedly among populations and years, but this variation could only partly be explained by variation in population size. Fruit set was positively related to population size, and seed predation was negatively related to population size, in one of three years. Similarly, the level of pollen limitation, which was quantified in two years, varied among populations, but was not related to population size, density or isolation. In L. salicaria, both the duration of stigma receptivity and the effect of prior self-pollination on seed output varied among style morphs. These differences may contribute to morph-specific differences in pollen limitation and seed production documented in the field. The results of a field experiment demonstrated that damage to the shoot apex may markedly reduce fruit production in L. salicaria, and suggested that this is mainly because damage reduces flower number. I found no evidence that a reduced floral display increased the severity of pollen limitation. Taken together, the results show that interactions with both pollinators and herbivores may markedly affect reproductive output in the two plant species, and that the intensity of both mutualistic and antagonistic interactions vary considerably in space and time. Moreover, they are consistent with the hypothesis that pollination success should depend less on population size in selfcompatible than in self-incompatible plants.

Given the increased number of children from racialized groups requiring foster care and the decreasing number of foster parents from racialized groups, transcultural foster placements are on the rise. Addressing racial and cultural diversity within the context of transcultural foster care placements is one of the most pressing dilemmas of contemporary child protection practice, in Canada. In this qualitative exploratory study, the perspectives of regular non-kinship foster parents groups in Nova Scotia and British Columbia, Canada, who provide foster care to children and youth from racialized groups, were explored through open-ended structured interviews. Participants consisted of nine foster parents, between the ages of 30 and over 60 years old, who were asked to share their experiences regarding transcultural foster care placements. The results of this study indicated foster parents were culturally receptive and ‘fostering cultural development’ in their homes as well as their respective communities.