Thesis (Ph. D.) -- University of Texas Southwestern Medical Center at Dallas, 2005. / Vita. Bibliography: 127-154.

Dissertation (Ph.D.)--University of South Florida, 2009. / Includes vita. Includes bibliographical references. Also available online.

Thesis (M.Sc.) - Carleton University, 2007. / Includes bibliographical references (p. 67-73). Also available in electronic format on the Internet.

Thesis (M.S.)--University of North Carolina at Wilmington, 2005. / Includes bibliographical references (leaves: 49-51)

Thesis (Ph.D.)--Uniformed Services University of the Health Sciences, 2006 / Typescript (photocopy)

Orientador: Luiz Claudio Nogueira Mendes / Banca: Flávia de Almeida Lucas / Banca:Lina Maria Wehrle Gomide / Banca:Fernanda Bovino / Banca:João Pessoa Araújo Junior / Resumo: Os objetivos do presente estudo foram verificar se existe reação inflamatória no exercício de curta duração e alta intensidade e se a mesma pode ser classificada em Th1, Th2 ou Th17. Além disso, verificar se as temperaturas corpóreas e locais se alteram com exercício este e se treinamentos distintos podem influenciar nestas alterações. Utilizaram-se 12 animais, idade entre 3 e 6 anos e peso médio de 450 kg, participantes de laço em dupla, divididos em: treino regular (GTR) e treino esporádico (GTE). O sangue coletado em tubos de 10 ml sem anticoagulante. Coletas e aferições de temperatura foram realizadas 30 minutos antes, imediatamente depois, uma, duas, seis, e 24 horas após o exercício. Utilizou-se como método de detecção das citocinas a citometria de fluxo. A concentração de IL-10, após uma hora do exercício, foi significativamente maior em GTE do que GTR. Observou-se maior concentração sérica de TNF-, IL-6 e IL-10 entre os grupos, 24 horas após o exercício, mas sem alteração entre os momentos. A temperatura central se restabeleceu dentro de 24 horas. As temperaturas da região dos tendões em membros pélvicos e da garupa mantiveram-se elevadas. O exercício não causou nenhum tipo de resposta imune, animais condicionados, treinados esporadicamente, apresentaram resposta imune mista enquanto que animais condicionados, treinados regularmente, não apresentaram nenhum tipo de resposta imune. O mecanismo de termorregulação foi eficiente em ambos os grupos, o aumento de temperatu... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The aims of this study were to verify if there is inflammation in the exercise of short duration and high intensity and whether it can be classified into Th1, Th2 or Th17. Moreover, check the body temperatures and locations change with exercise of short duration and high intensity and different training can influence these changes. 12 animals were used, 6 female and 6 males, mean age 3 to 6 years and weight ∼ 450 kg. Animals were divided in two groups: regular training (GLTR) and sporadic training (GLTE). 10 mL of Blood were collected in tube without anticoagulant. Blood collections and temperatures were made 30 minutes before, immediately after, and one, two, six and 24 hours after competition. The analyses were made by flow cytometric. The serum concentration of IL-10 was significantly higher in GTE than in GTR. The serum concentrations of TNF-, IL-6 and IL-10 were significantly higher in GTE than in GTR, 24 hours after exercise. The core temperature increased after exercise and returned to baseline after 24 hours. The temperature in the region of the hindlimbs raised immediately after exercise and did not return to baseline after 24 hours. The temperature of the croup (right side) increased immediately after exercise and remained so for more than 24 hours. The exercise did not cause any immune response, conditioned animals, trained sporadically showed mixed immune response while conditioned animals, trained regularly, did not show any immune response. The thermoregulatory... (Complete abstract click electronic access below) / Doutor

Les systèmes MEMS et NEMS permettent, par résonance mécanique, des mesures de masse avec une sensibilité et une résolution propices à la caractérisation d'objets de taille micro- et nanométrique. Ces dispositifs, adaptés à une intégration dans des systèmes d'analyse miniatures plus complexes, sont d'intérêt pour la recherche biomédicale et la détection de particules. Toutefois la caractérisation en milieu liquide reste à ce jour délicate, principalement à cause de phénomènes dissipatifs associés à la mise en mouvement du fluide environnant le dispositif vibrant.Afin de lever ce verrou, l’équipe au sein de laquelle s’est déroulée cette thèse a développé des MEMS fluidiques sous forme de plaques minces mises en vibration dans leur plan de manière à limiter l'excitation du fluide environnant. Chaque plaque comporte un canal microfluidique permettant la circulation d'un liquide dont la masse moyenne est précisément déterminée par la fréquence de résonance du système. A terme, l'ambition de ces systèmes est de parvenir à révéler, par un décalage en fréquence, le passage au sein de la plaque vibrante d’une particule unique transportée par le liquide.Deux objectifs ont été atteints dans le cadre de cette thèse. D'une part, le comportement de ces structures en présence de divers liquides a été finement caractérisé ce qui a permis d’évaluer leurs performances réelles en fonction des conditions d'excitation. La résolution mesurée pour ces capteurs est de l’ordre de quelques g.L-1, pour une sensibilité d’environ 100 Hz.(g.L-1)-1.D'autre part, une nouvelle génération de capteurs aux caractéristiques innovantes a été conçue en vue d’abaisser le seuil de détection en diminuant la masse des résonateurs et en améliorant le bruit en fréquence.Ce manuscrit sera articulé autour de quatre chapitres. Le premier propose un état de l’art des techniques existantes pour la caractérisation de particules en fluide, et détaille ensuite les solutions MEMS et NEMS développées à cette fin dans la littérature. Le second chapitre livre les résultats issus de la caractérisation d’une première génération de MEMS fluidiques. Le troisième décrit les observations et mesures réalises, et propose des perspectives d’amélioration de ces composants ainsi que de leur protocole de caractérisation. Enfin, on présente dans le dernier chapitre une nouvelle génération de NEMS conçue et fabriquée au cours de cette thèse ; pour finir sont discutés les choix réalisés et les perspectives d’évolution attendues pour ces composants. / MEMS and NEMS allow sensitive and precise mass detection consistent with micro- and bio- objects analysis. These systems are promising for biomedical research and particle metrology, and can be easily integrated in miniaturized multifunctional systems. Thererfore, characterization in liquid media remains tricky due to viscous dissipation consequent to the movement induced in the fluidic environment.In order to overcome this technological lock, our laboratory previously designed and fabricated specific MEMS devices for fluidic analysis; these thin plate resonators with and embedded microchannel are actuated in liquid media, with four capacitive electrodes providing both actuation and detection. The circulating fluid mass can be precisely measured by monitoring the device’s resonant frequency. The long-term objective is to be able to detect and weigh one single particle transported by the fluid.Two main objectives were fulfilled during these three years. First, the MEMS behaviour in presence of various liquids was evaluated, providing a fine-grained analysis of their performances as mass sensors. The measured resolution of our sensors is about a few g.L-1 with a sensitivity of 100 Hz.(g.m-3)-1.Meanwhile, a new generation of NEMS sensors with innovative features was designed; the objective is to decrease the effective mass and reduce the frequency noise, both for a better mass resolution.This thesis includes four chapters. The first one consists in a review of the existing techniques for particles characterization in fluid as well as MEMS and NEMS solutions for particles metrology described in the litterature. The second part of the manuscript presents the results of the experimental characterizations carried out on the first generation of sensors. The third chapter gathers the conclusions of these measurements and gives an outlook on possible improvements on both the design and the characterization of the sensors. At last, the fourth part describes the new generation of devices and discusses their characteristics in terms of expected resolution and applications.

Orientador: Gustavo Vitti Môro / Resumo: Programas de genética e melhoramento de milho possuem o foco de lançar híbridos com alta produtividade, sendo uma das principais dificuldades a obtenção de linhagens. Melhoristas de milho buscam novas alternativas para tornar esse processo mais rápido e com menor custo, sendo a tecnologia do duplo-haploide viável para esta finalidade. A pesquisa teve como objetivo avaliar a eficiência de indução de indutores de haploidia e a identificação de linhagens duplo-haploides em milho. Utilizou-se cinco híbridos simples de milho e três grupos de indutores de haploidia, os quais foram semeados e cruzados nas safras 2013/2014, 2014/2015 e 2015/2016. Das sementes provenientes dos cruzamentos selecionou-se os possíveis haploides pelo marcador morfológico visual R-navajo, pela avaliação de comprimento de raiz, vigor e coloração de plântulas. Realizou-se a duplicação cromossômica dos possíveis haploides e após a aclimatação em casa de vegetação, as plantas sobreviventes foram transplantadas para campo. As análises de citometria de fluxo foram realizadas com os genótipos sobreviventes em campo para confirmação das ploidias e descarte dos falsos haploides. Como resultados, há diferenças entre os três grupos de indutores de haplodia. Na safra 2015/2016 a taxa de indução de possíveis haploides foi de 1 a 20%, 1 a 35% e 1 a 42% para os grupos 1, 2 e 3, respectivamente. Houve diminuição do número de plantas no decorrer das avaliações, sendo que, do total de 332 plantas transplantadas em campo, fo... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Maize breeding programs are focused on releasing novel high productive hybrids and one of the main difficulties in maize breeding programs is obtaining inbred lines. Plant breeders have been looking for new alternatives to make this process faster and with a lower cost and doubled-haploid technology is an alternative. The objective of the research was to evaluate the efficiency of induction of tropical haploid inducers and the identification of doubled-haploid inbred lines in maize. Five maize hybrids and three haploid inducing groups were used, which were sown and crossed in the 2013/2014, 2014/2015 and 2015/2016 seasons. Possible haploids seeds were selected by the visual morphological marker R-Navajo, by the evaluation of root length, vigor and seedling staining. Chromosome doubling of the possible haploids was performed and after acclimatization in the greenhouse, the surviving plants were transplanted to the field. The flow cytometric analyzes were performed with the surviving genotypes in the field to confirm the ploidy and discard the false-haploids. As results, there are differences between the induction rates of the three haploid inducers groups. In the 2015/2016 crop season the induction rate was 1 to 20%, 1 to 35% and 1 to 42% for groups 1, 2, and 3, respectively. The number of plants decreased during the evaluations, and of the total of 332 plants transplanted in the field it was possible to perform flow cytometric analysis in 228 plants. Diploid and diploid/tetra... (Complete abstract click electronic access below) / Doutor

Submitted by Lucas Tadeu Mazza Revolti (lucasrevolti@yahoo.com.br) on 2018-08-15T01:06:00Z No. of bitstreams: 1 Tese Lucas Revolti_2018.pdf: 3338516 bytes, checksum: ae0389a42dbf27c8278045638f99f1b4 (MD5) / Approved for entry into archive by Neli Silvia Pereira null (nelisps@fcav.unesp.br) on 2018-08-15T18:45:19Z (GMT) No. of bitstreams: 1 revolti_ltm_dr_jabo.pdf: 3338516 bytes, checksum: ae0389a42dbf27c8278045638f99f1b4 (MD5) / Made available in DSpace on 2018-08-15T18:45:19Z (GMT). No. of bitstreams: 1 revolti_ltm_dr_jabo.pdf: 3338516 bytes, checksum: ae0389a42dbf27c8278045638f99f1b4 (MD5) Previous issue date: 2018-06-29 / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Programas de genética e melhoramento de milho possuem o foco de lançar híbridos com alta produtividade, sendo uma das principais dificuldades a obtenção de linhagens. Melhoristas de milho buscam novas alternativas para tornar esse processo mais rápido e com menor custo, sendo a tecnologia do duplo-haploide viável para esta finalidade. A pesquisa teve como objetivo avaliar a eficiência de indução de indutores de haploidia e a identificação de linhagens duplo-haploides em milho. Utilizou-se cinco híbridos simples de milho e três grupos de indutores de haploidia, os quais foram semeados e cruzados nas safras 2013/2014, 2014/2015 e 2015/2016. Das sementes provenientes dos cruzamentos selecionou-se os possíveis haploides pelo marcador morfológico visual R-navajo, pela avaliação de comprimento de raiz, vigor e coloração de plântulas. Realizou-se a duplicação cromossômica dos possíveis haploides e após a aclimatação em casa de vegetação, as plantas sobreviventes foram transplantadas para campo. As análises de citometria de fluxo foram realizadas com os genótipos sobreviventes em campo para confirmação das ploidias e descarte dos falsos haploides. Como resultados, há diferenças entre os três grupos de indutores de haplodia. Na safra 2015/2016 a taxa de indução de possíveis haploides foi de 1 a 20%, 1 a 35% e 1 a 42% para os grupos 1, 2 e 3, respectivamente. Houve diminuição do número de plantas no decorrer das avaliações, sendo que, do total de 332 plantas transplantadas em campo, foi possível realizar a análise de citometria de fluxo em 228 plantas. Constatou-se plantas diploides e diploides/tetraploides pela realização da citometria de fluxo. Os indutores do grupo 3 apresentaram maiores taxas de indução de haploides putativos sendo mais promissores para a adoção em programas de melhoramento de milho visando obter linhagens duplo-haploides. A técnica de citometria de fluxo permitiu o descarte de falsos haploides e é uma técnica de fácil execução e rapidez. / Maize breeding programs are focused on releasing novel high productive hybrids and one of the main difficulties in maize breeding programs is obtaining inbred lines. Plant breeders have been looking for new alternatives to make this process faster and with a lower cost and doubled-haploid technology is an alternative. The objective of the research was to evaluate the efficiency of induction of tropical haploid inducers and the identification of doubled-haploid inbred lines in maize. Five maize hybrids and three haploid inducing groups were used, which were sown and crossed in the 2013/2014, 2014/2015 and 2015/2016 seasons. Possible haploids seeds were selected by the visual morphological marker R-Navajo, by the evaluation of root length, vigor and seedling staining. Chromosome doubling of the possible haploids was performed and after acclimatization in the greenhouse, the surviving plants were transplanted to the field. The flow cytometric analyzes were performed with the surviving genotypes in the field to confirm the ploidy and discard the false-haploids. As results, there are differences between the induction rates of the three haploid inducers groups. In the 2015/2016 crop season the induction rate was 1 to 20%, 1 to 35% and 1 to 42% for groups 1, 2, and 3, respectively. The number of plants decreased during the evaluations, and of the total of 332 plants transplanted in the field it was possible to perform flow cytometric analysis in 228 plants. Diploid and diploid/tetraploid plants were observed by flow cytometry. The inducers from group 3 present higher rates of putative haploid induction, being more promising for its adoption in breeding programs to obtain doubled haploid inbred lines. The technique of flow cytometry allowed the discarding of false-haploids and it is a technique of easy and fast execution. / 159397/2014-6

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2018-02-07T18:45:29Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) camila_cristina_rodrigues.pdf: 1879433 bytes, checksum: 62f0da52d006b25928023dcba20ee6c0 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-03-09T19:14:07Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) camila_cristina_rodrigues.pdf: 1879433 bytes, checksum: 62f0da52d006b25928023dcba20ee6c0 (MD5) / Made available in DSpace on 2018-03-09T19:14:07Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) camila_cristina_rodrigues.pdf: 1879433 bytes, checksum: 62f0da52d006b25928023dcba20ee6c0 (MD5) Previous issue date: 2017 / As leveduras do g?nero Saccharomyces, em especial as da esp?cie Saccharomyces cerevisiae, s?o microrganismos eucari?ticos unicelulares do Reino Fungi. Possuem um papel importante em processos de fermenta??o, como na utiliza??o para a produ??o de bebidas alco?licas e p?es, sendo considerados micro-organismos seguros para alimentos. O monitoramento das mat?rias-primas e da prolifera??o de leveduras ? uma necessidade para o sucesso do processo fermentativo. Nesse sentido, a citometria de fluxo, que ? um m?todo r?pido e preciso, pode se apresentar como ferramenta promissora no campo da fermenta??o e no controle de bioprocessos. Assim, o objetivo desse trabalho foi realizar a an?lise do crescimento e heterogeneidade populacional de uma linhagem comercial de Saccharomyces cerevisiae pela t?cnica de citometria de fluxo. Para isso foi utilizada a marca??o intracelular com o fluorocromo ?ster succinimid?lico de diacetato de carboxifluoresce?na. A suspens?o de levedura incorporada com o fluorocromo foi transferida para tubos de ensaio contendo 10 mL de YEPD e incubada a 25? C e foram analisadas, ap?s diferentes tempos, por citometria de fluxo, microscopia confocal e espectrofotometria. Os resultados demonstraram que foi poss?vel observar, por citometria de fluxo, altera??es morfol?gicas da linhagem Saccharomyces cerevisiae ao longo do tempo, bem como quantificar o decaimento da fluoresc?ncia do corante CFSE ap?s sucessivos processos mit?ticos. Por essa t?cnica tamb?m foi poss?vel mensurar o n?mero de c?lulas da linhagem estudada ao longo do processo de multiplica??o comparando-se ?s outras metodologias comumente utilizadas para este fim. Conclui-se com esse estudo que a citometria de fluxo mostrou-se como uma ferramenta confi?vel e sens?vel para a an?lise do crescimento e heterogeneidade populacional de Saccharomyces cerevisiae. / Disserta??o (Mestrado) ? Programa de P?s-gradua??o em Ci?ncias Farmac?uticas, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2017. / Yeasts of the genus Saccharomyces, especially those of the species Saccharomyces cerevisiae, are unicellular eukaryotic microorganisms of the Fungi Kingdom. They have an important role in fermentation processes, such as in the use for the production of alcoholic beverages and breads, being considered microorganisms safe for food. The monitoring of raw materials and the proliferation of yeasts is a necessity for the success of the fermentation process. In this sense, flow cytometry, which is a fast and precise method, can be presented as a promising tool in the field of fermentation and in the control of bioprocesses. Thus, the objective of this work was to analyze the growth and population heterogeneity of a commercial strain of Saccharomyces cerevisiae by the flow cytometry technique. For this, intracellular labeling was used with the fluorochrome succinimidyl ester of carboxyfluorescein diacetate. The yeast suspension incorporated with the fluorochrome was transferred into test tubes containing 10 ml of YEPD and incubated at 25 ? C and analyzed after different times by flow cytometry, confocal microscopy and spectrophotometry. The results demonstrated that it was possible to observe, by flow cytometry, morphological alterations of the Saccharomyces cerevisiae lineage over time, as well as to quantify the decay of CFSE dye fluorescence after successive mitotic processes. By this technique it was also possible to measure the number of cells of the lineage studied throughout the multiplication process, comparing to the other methodologies commonly used for this purpose. It is concluded with this study that flow cytometry proved to be a reliable and sensitive tool for the analysis of the growth and population heterogeneity of Saccharomyces cerevisiae.