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Dissertations / Theses on the topic 'Reactivity ratios'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Paz, Pazos Marta. "Synthesis and Characterization of Copolymers Based on 2,3,4,5,6-Pentafluorostyrene." University of Akron / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=akron1134570748.

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2

Wiles, Kenton Broyhill. "Determination of Reactivity Ratios for Acrylonitrile/Methyl Acrylate Radical Copolymerization Via Nonlinear Methodologies Using Real Time FTIR." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34888.

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Reactivity ratios for the homogeneous free radical initiated copolymerization of acrylonitrile and methyl acrylate were measured by NMR on isolated, low conversion copolymers and by real time in situ FTIR. The system utilized azobisisobutyronitrile (AIBN) initiator in dimethyl formamide (DMF) at 62Â°. The FTIR technique allowed rapid generation of extensive copolymer compositions, which permitted application of nonlinear least squares methodology for the first time to this copolymer system. Thus, reactivity ratios at the 95% confidence level were determined to be 1.29 Â± 0.2 and 0.96 Â± 0.2

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3

Rosario, Astrid Christa. "The Chemistry of Dimethacrylate-Styrene Networks and Development of Flame Retardant, Halogen-Free Fiber Reinforced Vinyl Ester Composites." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/11228.

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One of the major classes of polymer matrix resins under consideration for structural composite applications in the infrastructure and construction industries is vinyl ester resin. Vinyl ester resin is comprised of low molecular weight poly(hydroxyether) oligomers with methacrylate endgroups diluted with styrene monomer. The methacrylate endgroups cure with styrene via free radical copolymerization to yield thermoset networks. The copolymerization behavior of these networks was monitored by Fourier Transform Infrared Spectroscopy (FTIR) at various cure conditions. Reactions of the carbon-car

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4

Barbosa, Natalia Bahia. "Copolimerização de estireno e VeoVa 10: determinação das razões de reatividade e estudo do processo de polimerização em emulsão." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-04102018-091517/.

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Neste trabalho foram determinadas as razões de reatividade para a copolimerização entre estireno e VeoVa-10 através de estudo experimental de copolimerização em solução em tolueno. Os parâmetros foram obtidos através do ajuste aos dados experimentais dos modelos de Mayo-Lewis e Meyer-Lowry, utilizando o critério dos erros-nas-variáveis (método dos mínimos quadrados não-linear que considera a existência de erros em todas as variáveis medidas). A metodologia experimental desenvolvida, de polimerização em solução em ampolas preparadas dentro de uma glove box e submetidas a temperatura de 80°C, re

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5

Starke, Sandra. "Multifunktionale (Meth)acrylat-Copolymere mit Phosphonsäurederivaten." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-189936.

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Ziel der Doktorarbeit war es, Copolymere mit phosphonsäurehaltigen Seitenketten zu entwickeln, die nachfolgend über polymeranaloge Umsetzungen in Terpolymere mit polymerisationsfähgen Gruppen umgewandelt werden sollten. Die Terpolymere können dann somit im Bereich der Schicht,- Lackindustrie eingesetzt werden.

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6

Khayat, Raymond. "Ingénierie macromoléculaire de polymères électroactifs fluorés." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0192.

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Les co-polymères et ter-polymères dérivés du poly(fluorure de vinylidène) ont suscité un intérêt croissant au cours des dernières années en raison de leur combinaison unique de haute électroactivité et d'excellentes propriétés mécaniques et chimiques. Cette étude vise à optimiser la conception de ces matériaux, en particulier du P(VDF-TrFE-CTFE) de type relaxeur-ferroélectrique, en renforçant le contrôle de leur architecture macromoléculaire. Deux stratégies ont été examinées pour améliorer les propriétés du terpolymère. La première stratégie implique le contrôle du séquençage des monomères lo

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7

Rivard, Tony. "Reactivity ratio estimation: Two case studies." Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6388.

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Two separate case studies on polymerization kinetics were performed. These studies focused on the determination of reactivity ratios: important copolymerization kinetic parameters. They are used to predict multicomponent polymer composition directly and have an indirect influence on the prediction of polymerization rate and final properties. In some cases, these parameters can be very difficult to obtain using standard techniques. These standard methods involve low conversion experiments and measurement of the final polymer composition. The goal of the first study was to determine the reactivi

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8

Tang, Chau N. "Copolymerization and Characterization of Vinylaromatics with Fluorinated Styrenes." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1207773730.

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9

Double, Kit Spenser. "Reactivity to Confidence Ratings During Reasoning and Problem Solving." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18588.

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Confidence ratings are one of the most frequently used measures of metacognition. Is has traditionally been assumed that confidence ratings can be elicited from individuals without affecting their underlying cognitive and metacognitive processes. Recently, research has challenged this assumption by demonstrating changes in cognitive performance in reaction to providing self-report measures of metacognition, so-called reactivity. The purpose of this thesis was to extend these findings by examining reactivity to confidence ratings in reasoning and problem-solving tasks. After introducing theory

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10

Quaglio, Ana Elisa Valencise [UNESP]. "HSP70, heparanase e HPRT participam da resposta inflamtória intestinal induzida por TNBS em ratos." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/91646.

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Made available in DSpace on 2014-06-11T19:25:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-02-25Bitstream added on 2014-06-13T20:32:59Z : No. of bitstreams: 1 quaglio_aev_me_botib.pdf: 425313 bytes, checksum: 2483f9db556c10ebc5c1a2db7f971fa3 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>A Doença Inflamatória Intestinal (DII) engloba, fundamentalmente, duas doenças distintas: a Doença de Crohn (DC) e a Retocolite Ulcerativa (CU), ambas caracterizadas por uma inflamação crônica do intestino, com períodos de exacerbação seguidos de intervalos prolon

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11

Ike, Amanda. "TAILORING BRANCHING FOR POLY (ARYLENE ETHER)S VIA REACTIVITY RATIO CONTROLLED POLYMERIZATIONS." Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1189267130.

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Quaglio, Ana Elisa Valencise. "HSP70, heparanase e HPRT participam da resposta inflamtória intestinal induzida por TNBS em ratos /." Botucatu : [s.n.], 2011. http://hdl.handle.net/11449/91646.

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Orientador: Luiz Claudio Di Stasi<br>Banca: Marcelo Fabio Gouveia Nogueira<br>Banca: Alessandra Gambero<br>Resumo: A Doença Inflamatória Intestinal (DII) engloba, fundamentalmente, duas doenças distintas: a Doença de Crohn (DC) e a Retocolite Ulcerativa (CU), ambas caracterizadas por uma inflamação crônica do intestino, com períodos de exacerbação seguidos de intervalos prolongados de remissão dos sintomas. Apesar da DII ser objeto de pesquisa há várias décadas, a sua etiologia ainda é desconhecida e a principal limitação no entendimento dos mecanismos fisiopatológicos desta doença é a disponi

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13

Estrela, Heder Frank Gianotto. "Reatividade vascular de aneis de aorta isolada de ratos normo ou hiperlipidemicos, sedentarios ou submetidos a natação." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314102.

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Orientadores: Dora Maria Grassi-Kassisse, Regina Celia Spadari<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-08T19:18:39Z (GMT). No. of bitstreams: 1 Estrela_HederFrankGianotto_M.pdf: 2827124 bytes, checksum: 2164e7c83b8b84f2615251a98db5bfb3 (MD5) Previous issue date: 2007<br>Resumo: Lipídios provenientes da dieta têm importante participação nas alterações vasculares observadas na síndrome plurimetabólica. O objetivo desta tese foi analisar a reatividade vascular de anéis de aorta com e sem endotélio isoladas de r

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14

Monteiro, Ariadne Santana e. Neves. "Efeito do diterpeno Manool sobre a função vascular de ratos normotensos e hipertensos." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/17/17137/tde-29082016-095825/.

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Introdução: A hipertensão arterial sistêmica (HAS) é uma condição clínica multifatorial caracterizada por níveis elevados e sustentados de pressão arterial. Nos últimos anos, estudos demonstraram o efeito cardiovascular de diversos metabólitos originados de várias espécies de plantas. O diterpeno é um exemplo, o qual age por meio de diversos mecanismos farmacológicos. Sabendo que o Manool pertence a esta classe de compostos, isso o torna uma substância com potencial uso no tratamento da HAS, motivo pelo qual se propôs o desenvolvimento deste trabalho. Objetivos: 1) Avaliar in vivo o possível e

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15

Zhou, Xiaoqin. "Evaluation of instantaneous and cumulative models for reactivity ratio estimation with multiresponse scenarios." Thesis, Waterloo, Ont. : University of Waterloo, 2004. http://etd.uwaterloo.ca/etd/x5zhou2004.pdf.

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Thesis (M.A.Sc.)--University of Waterloo, 2004.<br>"A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Master of Applied Science in Chemical Engineering". Includes bibliographical references. Issued also in PDF fomat and available via the World Wide Web. Requires internet connectivity, World Wide Web browser, and Adobe Acrobat Reader to view and print files.

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16

Boakye, Godfred. "REACTIVITY RATIO CONTROLLED POLYCONDENSATION AS A ROUTE TO SYNTHESIZE FUNCTIONAL POLY(ARYLENE ETHER)S." Wright State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1421085447.

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17

Ren, Shanshan. "d-Limonene, a Renewable Component for Polymer Synthesis." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35849.

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d-Limonene (Lim) was used in various polymer formulations to achieve a more sustainable polymerization. Lim is a renewable and essentially non-toxic compound, derived from citrus fruit peels, that may replace some of the many toxic and fossil-based chemicals used in polymer synthesis. Bulk free-radical polymerizations of n-butyl acrylate (BA) with Lim were performed to investigate Lim co-polymerization kinetics and estimate the monomer reactivity ratios, important parameters in the prediction of copolymer composition. Kinetic modeling of the BA/Lim copolymerization was performed with PREDICI

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18

Schmidt, Patrícia Medeiros. "Efeitos da exposição aguda ao cloreto de alumínio (AlCl3) sobre a pressão arterial, reatividade vascular e estresse oxidativo em ratos." Universidade Federal do Pampa, 2015. http://dspace.unipampa.edu.br:8080/xmlui/handle/riu/515.

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Submitted by Marcos Anselmo (marcos.anselmo@unipampa.edu.br) on 2016-09-13T19:07:13Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) PATRICIA MEDEIROS SCHMIDT.pdf: 1364423 bytes, checksum: 44d4424176381aef09781de156ac940d (MD5)<br>Approved for entry into archive by Marcos Anselmo (marcos.anselmo@unipampa.edu.br) on 2016-09-13T19:10:12Z (GMT) No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) PATRICIA MEDEIROS SCHMIDT.pdf: 1364423 bytes, checksum: 44d4424176381aef09781de156ac940d (MD5)<br>Made availa

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19

Elsen, Andrea M. "“One-Pot” Oligomeric A2 + B3 Approach to Branched Poly(arylene ether sulfone)s: Reactivity Ratio Controlled Polycondensation." Wright State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=wright1279291050.

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20

Silva, Willian Marcio da. "Efeito da acidose metabólica crônica sobre a reatividade da aorta torácica de ratos." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/17/17137/tde-26042018-174508/.

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Introdução: Os distúrbios ácido-básicos são comuns na prática médica e podem variar desde uma acidose ou alcalose simples até um distúrbio misto complexo e potencialmente fatal. A acidose metabólica ocorre por aumento na quantidade de ácidos não-voláteis sob condições como: insuficiência renal, sepse, diabetes grave, diarréia e outras. Há mais de um século tem-se conhecimento de que mudanças no pH promovem alterações no tônus vascular, o que afeta a circulação e controle da pressão sanguínea. Objetivos: 1) estabelecer um modelo eficiente de acidose metabólica crônica (AMC) em ratos; 2) avaliar

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21

Cabrini, Fernanda Penereiro Henrique. "Implantação do modelo de hipertensão arterial pulmonar induzida por monocrotalina em ratos : avaliação eletrocardiografica." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314786.

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Orientador: Miguel Arcanjo Areas<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-13T09:28:00Z (GMT). No. of bitstreams: 1 Cabrini_FernandaPenereiroHenrique_M.pdf: 1657467 bytes, checksum: 7c816d3914b81e0a3be2f7be4b123777 (MD5) Previous issue date: 2009<br>Resumo: A Hipertensão Arterial Pulmonar (HAP) é uma doença cardiopulmonar caracterizada pelo aumento da resistência dos vasos pulmonares, progredindo para um aumento na pressão arterial pulmonar e hipertrofia do ventrículo direito, prejudicando a função pulmonar, n

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22

Franco, Maria do Carmo Pinho. "Efeitos da Desnutrição Intra-Uterina na Reatividade Vascular de Ratos Espontaneamente Hipertensos (SHR) e Wistar." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/42/42136/tde-23032001-091851/.

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Evidências epidemiológicas tem sugerido que a desnutrição intra-uterina pode ter papel importante no desenvolvimento de hipertensão arterial na fase adulta. No presente trabalho, foi estudada a influência da desnutrição intra-uterina na reatividade vascular e na pressão arterial de animais Wistar e SHR (ambos os sexos). Para tanto, ratas prenhes foram submetidas à restrição alimentar equivalente a 50% da dieta normal, durante toda a gestação. Curvas concentração-efeito à noradrenalina (NA), acetilcolina (ACh) e ao nitroprussiato de sódio (NPS) foram realizadas em anéis de aorta de ratos Wistar

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Rizzetti, Danize Aparecida. "Efeito do Tratamento Antioxidante sobre a Reatividade Vascular da Artéria Aorta e Estresse Oxidativo de Ratos Expostos Cronicamente ao Cloreto de Mercúrio (HgCl2)." reponame:Repositório Institucional da UNIPAMPA, 2012. http://dspace.unipampa.edu.br:8080/xmlui/handle/riu/192.

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Submitted by Sandro Camargo (sandro.camargo@unipampa.edu.br) on 2015-03-09T01:55:05Z No. of bitstreams: 1 116110004.pdf: 1404525 bytes, checksum: ca74119d1b54d005e98448f652e62885 (MD5)<br>Made available in DSpace on 2015-03-09T01:55:06Z (GMT). No. of bitstreams: 1 116110004.pdf: 1404525 bytes, checksum: ca74119d1b54d005e98448f652e62885 (MD5) Previous issue date: 2012-09-26<br>O mercúrio aumenta o risco de doença cardiovascular, estresse oxidativo, e altera a reatividade vascular. Este metal induz disfunção endotelial, como resultado da diminuição da biodisponibilidade de óxido nítrico (N

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Conceição-Vertamatti, Ana Gabriela 1988. "Efeitos de complexos de rutênio com ligante nitrosilo em anéis de aorta com e sem endotélio isoladas de ratos." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314097.

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Orientador: Dora Maria Grassi Kassisse<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-19T22:17:00Z (GMT). No. of bitstreams: 1 Conceicao-Vertamatti_AnaGabriela_M.pdf: 7309475 bytes, checksum: 5e1d39b92988f9d6403190c0681c65b0 (MD5) Previous issue date: 2012<br>Resumo: Por apresentar basicamente fórmulas, o resumo, na íntegra, poderá ser visualizado no texto completo da tese digital<br>Abstract: Not informed<br>Mestrado<br>Fisiologia<br>Mestre em Biologia Funcional e Molecular

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Vitorino, Paula Rodrigues. "Avaliação da reatividade coronariana do coração isolado de ratos submetidos ao modelo de indução de epilepsia pela pilocarpina." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/7597.

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Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2017-07-17T11:42:56Z No. of bitstreams: 2 Dissertação - Paula Rodrigues Vitorino - 2016.pdf: 2307568 bytes, checksum: 8b0ba8c9e0ad9c9d3c15c47fd68109c9 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-07-19T11:25:44Z (GMT) No. of bitstreams: 2 Dissertação - Paula Rodrigues Vitorino - 2016.pdf: 2307568 bytes, checksum: 8b0ba8c9e0ad9c9d3c15c47fd68109c9 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>M

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Mota, Marcelo Mendonça. "Efeitos do treinamento resistido sobre as alterações na reatividade vascular de ratos diabéticos induzidos por aloxano." Universidade Federal de Sergipe, 2010. https://ri.ufs.br/handle/riufs/3730.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Diabetes mellitus (DM) is presented as a metabolic disorder characterized by chronic hyperglycemia that is associated with endothelial dysfunction (ED). Among the various therapies employed in the improvement of ED, primary prevention, which includes changes in diet and physical training (PT), has been the right one. This study evaluated the effects of resistance training (RT) on vascular reactivity of diabetic rats induced by alloxan. Wistar rats (250-300g) were divided into 3 groups: sedentary control (SC), sedentary diabetic (S

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Fagundes, Agnes Afrodite Sumarelli Albuquerque. "Efeito da acidose metabólica crônica sobre a reatividade vascular da artéria carótida e função cardiorrespiratória de ratos." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/17/17137/tde-08112018-141134/.

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Introdução: Os distúrbios ácido-base são comuns na prática médica e podem variar desde uma acidose ou alcalose simples até um distúrbio misto complexo e potencialmente fatal. Em situação de acidose ou alcalose, a permeabilidade iônica e as funções enzimáticas celulares se alteram, acarretando disfunção de diversos órgãos e sistemas. A acidose metabólica (MA), uma condição clínica comum, é causada por uma diminuição no pH do sangue e na concentração de bicarbonato. Pode ocorrer agudamente, com duração de algumas horas a um dia, ou como uma condição crônica, quando o pH normal não pode ser total

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Nascimento, Suênia Maria do. "Caracterização e estudo do efeito do extrato hidroalcoólico do epicarpo liofilizado do Syzygium cumini L. em ratos espontaneamente hipertensos (SHR)." Universidade Federal da Paraíba, 2015. http://tede.biblioteca.ufpb.br:8080/handle/tede/8831.

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Submitted by Maike Costa (maiksebas@gmail.com) on 2017-02-13T11:50:19Z No. of bitstreams: 1 arquivo total.pdf: 2376282 bytes, checksum: f00091bc34d6ac827f808df88ecc9540 (MD5)<br>Made available in DSpace on 2017-02-13T11:50:19Z (GMT). No. of bitstreams: 1 arquivo total.pdf: 2376282 bytes, checksum: f00091bc34d6ac827f808df88ecc9540 (MD5) Previous issue date: 2015-02-06<br>Hypertension and diabetes are diseases with a strong impact on public health and have risk factors, incorrect eating habits and oxidative stress. In this sense, the science search for alternatives to the treatment of th

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Bexis, Sotiria. "The relationship between vascular structure, contractile proteins, vascular reactivity and blood pressure in animal models of hypertension /." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phb572.pdf.

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Couto, Gisele Kruger. "Estudo da função em artérias de resistência de ratos pós-infarto do miocárdio." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/42/42137/tde-25072012-095638/.

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Esta tese avaliou a função em artérias de resistência do músculo esquelético (ARME) e em coronárias septais (CS) de ratos com disfunção ventricular esquerda leve (LDV) e severa (SDV) pós-infarto do miocárdio (IM). As ARME e as CS foram montadas em miógrafo de arame. O relaxamento dependente do endotélio, mediado pela acetilcolina (ACh), foi reduzido nas ARME dos SDV e preservado nos LDV. A resposta à ACh foi reduzida na CS dos SDV e aumentada nos LDV. O relaxamento mediado pelo doador de óxido nítrico (NO) foi preservado em todas as artérias. Utilizando-se a sonda DAF-2 em cortes de CS, antes

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Mota, Marcelo Mendonça. "Efeitos agudos de diferentes intensidades de exercício resistido sobre os ajustes vasculares em artéria mesentérica de ratos." Universidade Federal de Sergipe, 2014. https://ri.ufs.br/handle/riufs/3583.

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The direct relationship between resistance exercise and vascular health is certain, but the complex set of metabolic and hemodynamic pathways and the effects of this type of exercise on cardiovascular tissues are still controversial. Although consensus that nitric oxide (NO) contributes to the control of blood flow during resistance exercise, are not yet fully understood the events signaling in the vasculature that mediate the release of this vasoactive agent. In this sense, the objective of the present study was to evaluate the acute effects of different intensities of resistance exercise o

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Vale, Bruno Nunes do. "Consequências dos tratamentos realizados com celecoxibe, -tocoferol ou losartan sobre a reatividade em carótidas de ratos submetidos à lesão com cateter balão." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/60/60138/tde-01092009-094026/.

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A lesão por balão cateterismo é um procedimento comumente utilizado para o estudo dos mecanismos de restenose. O estresse mecânico produzido pela passagem do balão promove alterações tanto na artéria lesada quanto na artéria contra-lateral. Observou-se um aumento da densidade de neurônios que contêm neuropeptídeos como a Substância P (SP) e o Peptídeo Relacionado com o Gene da Calcitonina (CGRP) na artéria contra-lateral à lesão, o que evidencia a ocorrência de um processo neurocompensatório. Observou-se ainda um aumento da reatividade desta artéria à fenilefrina (Phe) e à angiotensina II (Ang

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Silva, Tharciano Luiz Teixeira Braga da. "Efeitos da administração da L-arginina, do exercício resistido e da L-arginina associada ao exercício resistido sobre a reatividade vascular da artéria mesentérica de ratos diabéticos." Universidade Federal de Sergipe, 2011. https://ri.ufs.br/handle/riufs/3794.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Diabetes mellitus (DM) can be defined as a heterogeneous group of metabolic disorders characterized by hyperglycemia, resulting in dysfunction, ultimately, failure of various organs, especially the eyes, kidneys, nerves and vascular system. This study aimed to evaluate the effects of L-arginine (L-Arg), resistance exercise (RE) and the association between them on changes of endothelium-derived relaxing factor (EDRF) in isolated rings of superior mesenteric artery of diabetic rats induced by alloxan. Wistar rats (250-300g) were divi

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Banin, Tamy Midori. "Conseqüências do estresse crônico ou agudo sobre as ações vasculares do Angiotensia II e da Angiotensina 1-7 em carótidas de ratos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/60/60138/tde-22062011-161736/.

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O estresse crônico ou agudo pode alterar diversas funções relacionadas ao sistema cardiovascular, ocasionando doenças cardíacas. O sistema renina-angiotensina (SRA), importante participante do controle dessas funções, é profundamente afetado em resposta ao estresse. A angiotensina II (Ang II) é reconhecida como hormônio multifuncional que influencia diversos processos celulares importantes para a regulação da função vascular, incluindo regulação do tônus vascular, crescimento celular, dentre outros. Outro componente do SRA é a angiotensina 1-7 (Ang 1-7), suas ações vasculares envolvem aumento

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Garnault, Anne-Marie. "Nouveaux silicones et polystyrenes fluores : preparation et caracterisation." Paris 6, 1986. http://www.theses.fr/1986PA066470.

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Modification chimique de polymethylhydrogenosiloxanes par hydrosilation d'allyle ether et de thioethers fluores. Modification chimique de polymethylvinylsiloxane par un thiol fluore. Polymerisation anionique de cyclosiloxanes substitues par des groupements fluores. Synthese de polystyrenes a greffons fluores par polymerisation radicalaire de derives styreniques obtenus par catalyse par transfert de phase. Caracterisation par spectrometrie ir et rmn

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Rogueda, Catherine. "Etude comparee de la copolymerisation alternee du styrene et du methacrylate de methyle en solution dans le toluene ou dans le tetrachlorure de carbone." Paris 6, 1987. http://www.theses.fr/1987PA066203.

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Etude cinetique de la copolymerisation du styrene et du methacrylate de methyle en presence d'aletcl::(2) ou alet::(2)cl en solution dans du toluene ou du tetrachlorure de carbone. Analyse d'un mecanisme faisant intervenir des reactions de propagation croisees

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Araujo, Layanne Cabral da Cunha. "Exercício aeróbico crônico de natação promove alterações morfofuncionais em íleo de rato." Universidade Federal da Paraíba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/9446.

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Submitted by Vasti Diniz (vastijpa@hotmail.com) on 2017-09-06T13:43:25Z No. of bitstreams: 1 arquivototal.pdf: 2157033 bytes, checksum: c35af421ba5130163d96afa847c031de (MD5)<br>Made available in DSpace on 2017-09-06T13:43:25Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2157033 bytes, checksum: c35af421ba5130163d96afa847c031de (MD5) Previous issue date: 2014-08-22<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Abnormalities in intestinal contractile reactivity represent one of the pathophysiological processes that characterize intestinal colic, diarrhea and const

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Debnath, Dibyendu. "SYNTHESIS AND VISCOELASTIC PROPERTIES OF GELS OBTAINED FROM LINEAR AND BRANCHED POLYMERS." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1525400236218684.

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Debnath, Dibyendu Debnath. "SYNTHESIS AND VISCOELASTIC PROPERTIES OF GELS OBTAINED FROM LINEAR AND BRANCHED POLYMERS." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1525398351097978.

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Benaboura, Ahmed. "Etude de la copolymerisation du styrene et de l'hexene-1 et du mode d'insertion du styrene en presence de catalyseurs de type "ziegler"." Paris 6, 1988. http://www.theses.fr/1988PA066059.

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Polymerisation du styrene et de l'hexene-1 en presence de catalyseurs a base de titane, sans organoaluminique, contenant ou non du chlorure d'aluminium et par du chlorure de magnesium. Influence d'addition de benzoate d'ethyle

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Schrooten, Jens. "Investigations into the Propagation and Termination Kinetics of the Radical Polymerization of Polar Monomers in Aqueous Solution." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://hdl.handle.net/11858/00-1735-0000-001D-ADC2-A.

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Propagations- und Terminierungsgeschwindigkeitskoeffizienten radikalischer Polymerisationen in wässriger Lösung wurden durch Pulslaser-induzierte Polymerisationen und durch chemisch initiierte Polymerisationen bestimmt. Pulslaser-induzierte Polymerisationen wurden von <i>N</i>,2‑Dimethylprop‑2‑enamid, <i>N</i>,<i>N</i>‑Dimethylprop‑2‑enamid, 2‑Methylprop‑2‑enamid und Prop‑2‑enamid durchgeführt. Anschließende Analyse der Produkte mittels Größenausschlusschromatographie ermöglichte die Bestimmu

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ANGELOCCI, LUCAS V. "Estudo de casos clínicos em radioterapia através do sistema de planejamento AMIGOBrachy." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26926.

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Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2016-12-21T11:30:16Z No. of bitstreams: 0<br>Made available in DSpace on 2016-12-21T11:30:16Z (GMT). No. of bitstreams: 0<br>O sucesso de uma radioterapia depende do correto planejamento da dose a ser entregue ao volume alvo. Na braquiterapia, modalidade da radioterapia onde um radioisótopo selado é implantado intracavitariamente ou intersticialmente no paciente, há menos avanços em sistemas de planejamento de tratamento computacionais do que na teleterapia, amplamente mais utilizada nos serviços típicos. Porém, a braquiterapi

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Bebe, Siziwe. "Estimation of Free Radical Polymerization Rate Coefficients using Computational Chemistry." Thesis, 2008. http://hdl.handle.net/1974/1189.

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Acrylic free radical polymerization at high temperature proceeds via a complex set of mechanisms, with many rate coefficients poorly known and difficult to determine experimentally. This problem is compounded by the large number of monomers used in industry to produce coatings and other materials. Thus, there is a strong incentive to develop a methodology to estimate rate coefficients for these systems. This study explores the application of computational chemistry to estimate radical addition rate coefficients for the copolymerization of acrylates, methacrylates and styrene. The softwar

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Kazemi, Niousha. "Reactivity Ratio Estimation Aspects in Multicomponent Polymerizations at Low and High Conversion Levels." Thesis, 2010. http://hdl.handle.net/10012/5291.

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Estimation of reactivity ratios from cumulative copolymerization models eliminates the difficulties associated with stopping reactions at low conversion, while one gains to study the full polymerization trajectory. The parameter estimation technique used in this research is the error-in-variables-model (EVM) method, which has been shown to be the most appropriate one for parameter estimation. Two cumulative model forms, the analytical integration of the differential composition equation or Meyer-Lowry model and the one resulting from the direct numerical integration of the differential composi

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Huang, Chih-Wei, and 黃志維. "Effects of CH4 flow ratio on the structure and properties of reactively sputtered (CrNbSiTiZr)Cx coatings." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/29629150254084387236.

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Hodge, Phillip. "Determining Bounds for a Pressure Hazard Rating to Augment the NFPA 704 Standard." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10419.

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Hazard communication is an essential part of a comprehensive safety plan, especially for those facilities that contain reactive chemicals. There are a variety of means of communicating a chemical hazard, but one of the most prevalent in the United States is the Instability Rating found in the NFPA 704 standard. While the NFPA 704 identifies hazards associated with exothermically decomposing compounds, it neglects compounds that decompose endothermicly to form large quantities of gas. Such compounds have been known to cause accidents due to pressure buildup, such as in the BP Amoco Polymers

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Al-Saleh, Mohammad A. "Nonlinear Parameter Estimation for Multiple Site-Type Polyolefin Catalysts Using an Integrated Microstructure Deconvolution Methodology." Thesis, 2011. http://hdl.handle.net/10012/5818.

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The microstructure of polyolefins determines their macroscopic properties. Consequently, it is essential to predict how polymerization conditions will affect polyolefin microstructure. The most important microstructural distributions of ethylene/alfa-olefin copolymers made with coordination catalysts are their molecular weight (MWD), chemical composition (CCD), and comonomer sequence length (CSLD). Several mathematical models have been developed to predict these microstructural distributions; reliable techniques to estimate parameters for these models, however, are still poorly developed, espe

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Bexis, Sotiria. "The relationship between vascular structure, contractile proteins, vascular reactivity and blood pressure in animal models of hypertension / by Sotiria Bexis." Thesis, 1997. http://hdl.handle.net/2440/18970.

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Bibliography: leaves 216-239.<br>xiv, 246 leaves : ill. ; 30 cm.<br>The aim of this thesis is to examine the relationship between vascular reactivity, contractile proteins and blood pressure development in the spontaneously hypertensive rat (SHR). In addition, the influence of angiotensin II on blood pressure and vascular structure and function is investigated.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Clinical and Experimental Pharmacology, 1997

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