▼ 

Submitted by Nadir Basilio ([email protected]) on 2018-07-20T20:50:03Z No. of bitstreams: 1 Vanderson Cunha do Nascimento.pdf: 1194346 bytes, checksum: ddb63f49374d9261ba822c5740a4bddf (MD5)

Made available in DSpace on 2018-07-20T20:50:04Z (GMT). No. of bitstreams: 1 Vanderson Cunha do Nascimento.pdf: 1194346 bytes, checksum: ddb63f49374d9261ba822c5740a4bddf (MD5) Previous issue date: 2018-03-08

Objective: to verify in elderly women practitioners of resistance training (RT) the behavior of Maximum Inspiratory Pressure (Mip) and Expiratory (Mep), amplitude ring, Axillary (AAx), Xifoideana (AXi) and Abdominal (AAb), the peak of Expiratory flow (PEF) and the distance travelled in Incremental Shuttle Walk Test (ISWT). Methodology: Two studies were developed with elderly women aged between 60 and 79 years. In study I, the sample consisted of 53 elderly women divided into two groups. The group of trained (GT) was composed of 28 women participants of a RT program and the group of non-trained (GNT) was composed of 25 sedentary or irregularly active women. In study II, the sample consisted of 24 elderly women, sedentary or irregularly active, who underwent a 12-week RT program. The elderly women were evaluated for Mip and Mep with the use of manovacuometry, thoracoabdominal amplitudes by cirtometry, PEF using the PEF or Peak-Flow meter and walking performance through the ISWT. In the statistical analysis in the study I was applied the Unpaired Student's t-Test and in Study II Student's t-Test was applied for related samples. The Pearson Correlation Test was used to correlate the respiratory variables with the distance covered in the ISWT. The level of significance was p ??? 0.05. RESULTS: In the study I of the walk and the respiratory variables studied, except for AAb, found significant and superior differences in GT in relation to GNT, as well as in study II in the post-RT study. Correlation between respiratory variables and ISWT performance was only observed between this and AXi in study I. Conclusion: In study I, elderly women participating in a RT extension program presented higher and significant differences in Mip, Mep, AAx , AXi, Peak-Flow and performance in the ISWT when compared to sedentary or irregularly active elderly women, as well as, showed a significant correlation between AXi and ISWT performance. In study II, the RT promoted significant changes in respiratory variables and walking performance, except in AAb, however, no correlation was found between the respiratory variables studied and the results in the ISWT.

Objetivo: Verificar em mulheres idosas praticantes de Treinamento Resistido (TR) o comportamento das Press??es M??ximas Inspirat??ria (PIm??x) e Expirat??ria (PEm??x), das Amplitudes toracoabdominal, Axilar (AAx), Xifoideana (AXi) e Abdominal (AAb), do Pico de Fluxo Expirat??rio (PFE) e da dist??ncia percorrida no Incremental Shuttle Walk Test (ISWT). Metodologia: Foram desenvolvidos dois estudos com mulheres idosas com idade entre 60 e 79 anos. No estudo I, a amostra foi…

Advisors/Committee Members: Costa, Dirceu, Teixeira, Renato da Costa, Costa, Dirceu, Angelis, Katia de, Dias, Raphael Mendes Ritti, Teixeira, Renato da Costa.

▼ 

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS ([email protected]) on 2016-05-17T11:17:38Z No. of bitstreams: 1 DIS_CRISTHIELE_TAIS_WOSZEZENKI_PARCIAL.pdf: 460185 bytes, checksum: 0a97ea104058f0cf129ef176df86e909 (MD5)

Made available in DSpace on 2016-05-17T11:17:38Z (GMT). No. of bitstreams: 1 DIS_CRISTHIELE_TAIS_WOSZEZENKI_PARCIAL.pdf: 460185 bytes, checksum: 0a97ea104058f0cf129ef176df86e909 (MD5) Previous issue date: 2016-03-28

Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES

Objectives: To generate reference values for two inspiratory muscle endurance protocols (IME) in healthy children and adolescents. Methods: An observational, cross-sectional study was conducted including healthy children and adolescents between 4 and 18 years old. Body weight, height, maximal inspiratory pressure (MIP) and IME (using two protocols) measurements were performed. In the incremental threshold loading a fixed load of 30% of the MIP with an increase of 10% every 2 minutes was used. In the a fixed load of 70% of the MIP was used and the time limit (Tlim) to exhaustion was measured. Results: In total, 462 participants were included, 281 performed the incremental threshold loading and 181 the maximum load protocol. There were moderate and positive correlations between IME and age, MIP, height and weight in the incremental threshold loading. However, the regression model showed that MIP and age were the best variables to predict RMI. In the maximum load protocol, weak and positive correlations with age, weight and height were found. In the regression model for this protocol, only age and height influenced the endurance. The prediction power (R2) for the incremental threshold loading was 0.65, while for the maximum load protocol was 0.15. Reproducibility measured by the intraclass correlation coefficient (ICC) was higher in the incremental threshold loading (0.96) compared to the maximum load protocol (0.69). Conclusion: The IME in healthy children and adolescents can be explained by age, height and MIP. The incremental threshold loading showed better results and should be the model of choice when evaluating IME in the pediatric age group.

Objetivos: Gerar valores de refer?ncia para dois protocolos de resist?ncia muscular inspirat?ria (RMI) em crian?as e adolescentes saud?veis. M?todos: Estudo observacional, transversal, em crian?as e adolescentes saud?veis de 4 a 18 anos. Foram realizadas as mensura??es de peso, altura, press?o inspirat?ria m?xima (PIMAX) e RMI, utilizando-se dois protocolos. No protocolo de carga incremental foi utilizada uma carga fixa de 30% da PIMAX com incremento de 10% a cada 2 minutos. J? no protocolo de carga m?xima foi utilizada uma carga fixa de 70% da PIMAX e mensurado o tempo limite (Tlim) alcan?ado at? a exaust?o. Resultados: Foram inclu?dos 462 participantes, sendo 281 correspondentes ao protocolo de carga incremental e 181 ao de carga m?xima. No protocolo de carga incremental, houve correla??es moderadas e positivas entre a RMI e a idade, PIMAX, peso e altura. No…

Advisors/Committee Members: Donadio, M?rcio Vin?cius Fagundes.

▼ 

Made available in DSpace on 2015-04-14T13:33:08Z (GMT). No. of bitstreams: 1 456334.pdf: 876900 bytes, checksum: 9a3a16228d37d2decb9f9e991320abe6 (MD5) Previous issue date: 2014-03-05

Objectives : To evaluate inspiratory muscle strength and endurance in children and adolescents with cystic fibrosis (CF) in comparison with healthy subjects. Methods : This cross-sectional observational study evaluated CF patients (6 to 18 years old) and healthy subjects paired in a 1:2 proportion, for sex, age, height and weight. Spirometry, impulse oscillometry, plethysmography, manovacuometry and a protocol of inspiratory muscle endurance were performed. Data were analyzed using Student s t test and Pearson correlation coefficient. Results : Thirty four patients with CF were included in the study with a mean age of 12.6?2.9 years and twenty of them were boys (58.8%). The mean percentage of maximal inspiratory pressure (MIP%) was 118.5?25.8 and the endurance (percentage of MIP) was 60.9?13.3. Sixty eight healthy subjects were included and they presented a mean MIP% of 105.8?18.0 and an endurance of 65.3?12.3 of. CF patients had higher MIP% than healthy subjects and no significant difference in the endurance was shown. When restricting the analysis to CF patients without colonization by Pseudomonas aeruginosa and with forced expiratory volume in one second (FEV1) greater than 80% of predicted values, MIP% values were significantly higher and inspiratory muscle endurance was lower, in comparison with the control group. MIP correlated more significantly with forced vital capacity (r=0.44, p=0.01) and FEV1 (r=0.41, p=0.01), while endurance correlated better with total airway resistance (r=0.35, p=0.04) and with central airway resistance (r=0.48, p=0.04). Conclusion : Children and adolescents with CF present changes in inspiratory muscle strength and endurance that are associated differently with levels of pulmonary impairment. Furthermore, the significant strength associations are better related to pulmonary function parameters, while endurance is to airway resistance.

M?todos : Estudo observacional, transversal, em pacientes com FC (6 a 18 anos) e indiv?duos saud?veis pareados na propor??o de 1:2 por sexo, idade, altura e peso. Foram realizados espirometria, oscilometria de impulso, pletismografia, manovacuometria e protocolo de endurance muscular inspirat?ria. Para an?lise de dados utilizou-se os testes t de student e a correla??o linear de Pearson. Resultados : Foram inclu?dos 34 pacientes com FC, m?dia de idade de 14,0?2,7, sendo 20 pacientes (58,8%) do sexo masculino, com m?dia de press?o inspirat?ria m?xima percentual (PIMAX%) de 118,5?25,8 e de endurance (percentual da PIMAX) de 60,9?13,3. Tamb?m foram inclu?dos 68 indiv?duos saud?veis com m?dia de PIMAX% de 105,8?18,0 e de endurance de 65,3?12,3. Os pacientes com FC apresentaram maior PIMAX% do que os saud?veis e n?o apresentaram diferen?a significativa na endurance. Ao analisar separadamente os pacientes com FC sem coloniza??o por Pseudomonas aeruginosa e com volume…

Advisors/Committee Members: Donadio, M?rcio Vin?cius Fagundes.

▼ 

Introdu??o: Existem muitas equa??es para estimar a for?a muscular respirat?ria (FMR) com diferentes valores preditivos. Assim, a equa??o escolhida pode influenciar, de forma decisiva, no diagn?stico da situa??o dos m?sculos respirat?rios e interferir na tomada de decis?o cl?nica. A equa??o de refer?ncia escolhida torna-se t?o relevante quanto a t?cnica correta e o resultado aferido. Objetivo: Comparar o valor preditivo de 4 equa??es de refer?ncia com os valores da FMR: press?o inspirat?ria m?xima (PIm?x) e a press?o expirat?ria m?xima (PEm?x), mensurados em idosos neuropatas e indicar a(s) equa??o(?es) que melhor se ajusta(m). M?todo: Estudo observacional anal?tico. As capacidades de 4 equa??es preditivas foram comparadas com a FMR mensuradas em 220 idosos, sendo 108 neuropatas funcionais e 112 controles h?gidos. Para verificar a normalidade dos dados foi utilizado o teste Shapiro-wilk, foram realizadas an?lises descritivas. Para avaliar os fatores que influenciavam o estado de sa?de dos participantes (h?gido ou neuropata) foi realizada an?lise das compara??es via testes Qui-Quadrado e teste de Mann-Whitney. Para a correla??o das vari?veis peso e IMC entre os idosos com fraqueza muscular respirat?ria, foi utilizada a correla??o de Pearson. A compara??o entre os valores preditos por cada equa??o e os valores mensurados foi feita por interm?dio do ajuste de um modelo de Regress?o Log?stica. Para verificar o ajuste a capacidade preditiva do modelo foram calculadas: ?rea sob a curva ROC (AUC), Sensibilidade, Especificidade, Valor Preditivo Positivo (VPP), Valor Preditivo Negativo (VPN) e Acur?cia (ACC), e as medidas de qualidade de ajuste das equa??es: R?, mean absolute deviation (MAD), mean absolute percentage error (MAPE) e o root mean square error (RMSE), estabelecemos um ranking de classifica??o segundo a capacidade preditiva. O software utilizado foi o R (vers?o 3.5.1). Resultados: Nenhuma das equa??es foi capaz de prever a PImax da amostra estudada. Nos idosos neuropatas, a equa??o de Neder apresentou melhor potencial em predizer a PIm?x (maior AUC) e melhor capacidade preditiva no rancking geral. Para a PEm?x a equa??o de Sanchez E1 foi a que mais se ajustou com melhor capacidade preditiva quando analisada VPP, VPN, ACC e AUC. Conclus?o: Para os valores de refer?ncia da FMR em idosos neuropatas a equa??o de Neder foi a mais ajustada aos valores mensurados da PIm?x e a equa??o de Sanchez E1 foi a mais ajustada aos valores mensurados da PEm?x.

Introduction: There are many equations to estimate respiratory muscle strength (RMS) with different predictive values. Thus, the chosen equation can decisively influence the diagnosis of the situation of the respiratory muscles and interfere with clinical decision-making. The chosen reference equation becomes as relevant as the correct technique and the measured result. Objective: To compare the predictive value of 4 reference equations with the FMR values: maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP), measured in elderly neuropaths and indicate…

Advisors/Committee Members: Gon?alves, Roberta Lins, http://lattes.cnpq.br/7353579266183058, Andrade, Edson de Oliveira, http://lattes.cnpq.br/8405362482175322, Freire J?nior, Renato Campos, http://lattes.cnpq.br/9968000130595849, Amorim, Robson Luis Oliveira de, http://lattes.cnpq.br/0601048137391786.

▼ 

Made available in DSpace on 2015-04-14T13:32:57Z (GMT). No. of bitstreams: 1 437894.pdf: 860608 bytes, checksum: 959e5f29761ace404c63333ec242952c (MD5) Previous issue date: 2012-03-15

The evaluation of respiratory muscle strength is a noninvasive and easily applicable method, used for the measurement of maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP). However, there are no reference values for children in preschool age, which makes it difficult to standardize the results and complicates the assessment of respiratory muscle function. Thus, the objective of present study was to generate reference values for respiratory muscle strength in healthy children and adolescents aged between three to twelve years old. Participants were recruited from three schools and selected after a respiratory disease questionnaire analysis and attainment of informed and written consent by parents or guardians. All participants included in the study had normal spirometry and measures of height and weight were performed in the same day. The evaluation of respiratory muscle strength was performed by a single examiner following the guidelines for pulmonary function tests. The association between MIP and MEP values with the potential predictive variables was analyzed using a multiple linear regression model. A total of 171 participants were selected and distributed evenly by age. The age, height, weight and FVC showed moderate to strong correlations with both respiratory pressures. However, the regression model showed that the height and weight were the best variables to predict MIP in both sexes and age and weight to predict MEP. The power of prediction (R2) ranged from 46 to 58%. The intraclass correlation coefficient was used in a subgroup and demonstrated an excellent reproducibility between tests. In conclusion, the results of present study demonstrate that the behavior of respiratory muscle strength in healthy preschool and school children can be explained by age, height and weight.

A avalia??o da for?a muscular respirat?ria ? um m?todo n?o invasivo e de f?cil aplicabilidade, utilizado para a mensura??o da press?o inspirat?ria m?xima (PIMAX) e da press?o expirat?ria m?xima (PEMAX). No entanto, ainda n?o existem valores de refer?ncia para crian?as em idade pr?-escolar, impossibilitando a normaliza??o dos resultados obtidos e dificultando a avalia??o da fun??o muscular respirat?ria. Assim, o objetivo deste estudo foi gerar valores de refer?ncia para a for?a muscular respirat?ria em crian?as e adolescentes saud?veis de tr?s a doze anos de idade. Os participantes foram recrutados atrav?s de tr?s escolas e selecionados ap?s an?lise do question?rio de doen?as respirat?rias e assinatura do termo de consentimento pelos pais ou respons?veis. Todos os participantes inclu?dos no estudo possu?am exame espirom?trico normal e medidas de peso e altura no dia da mensura??o. A avalia??o da for?a muscular respirat?ria foi realizada por um ?nico avaliador seguindo as diretrizes para testes de fun??o pulmonar. A associa??o…

Advisors/Committee Members: Donadio, M?rcio Vin?cius Fagundes.

▼ 

Submitted by Nadir Basilio ([email protected]) on 2016-05-24T20:58:42Z No. of bitstreams: 1 Fabiana Sobral Peixoto Souza.pdf: 974536 bytes, checksum: c2d1061af7b82ef311f02e54edfcd5bd (MD5)

Made available in DSpace on 2016-05-24T20:58:42Z (GMT). No. of bitstreams: 1 Fabiana Sobral Peixoto Souza.pdf: 974536 bytes, checksum: c2d1061af7b82ef311f02e54edfcd5bd (MD5) Previous issue date: 2014-12-09

Background: Obesity is a public health problem. The imbalance between pro- and anti-inflammatory mechanisms is responsible for chronic inflammation of low grade. Besides multiple morbidities associated with obesity, these individuals have respiratory dysfunction and changes in functional capacity which reflects the physical capacity. Objectives: To investigate the impact of weight loss induced by bariatric surgery in pulmonary function, respiratory muscle strength (RMS) and in systemic and pulmonary inflammatory markers of obese women without changes in pulmonary function; to evaluate the reproducibility of the incremental shuttle walk test (ISWT) in women with morbid obesity; to assess functional capacity and oxygen consumption through ISWT in women undergone bariatric surgery. Methods: Three studies were performed, two longitudinals and one cross in which morbid obesity women were evaluated. It were conducted anthropometric measurements and body composition, lung volume and capacity data, maximal respiratory pressures, dosages of systemic and pulmonary inflammatory markers and functional capacity evaluation. Results: After bariatric surgery, it were observed improviment of the lung function and reduction of the inflammatory markers in the blood and induced sputum. ISWT proved to be reproducible and reliable test in women with morbid obesity and after bariatric surgery. showing an increase in distance traveled, but not oxygen consumption (VO2 peak) assessed during the test. Conclusion: Women with morbid obesity, with no change in lung function, showed improved respiratory function and respiratory and systemic inflammatory markers after weight loss induced by bariatric surgery. The application of two tests in the population of morbidly obese appears to be unnecessary because it had an excellent reproducibility. The ISWT provided useful information on functional status and physical function after weight loss induced by bariatric surgery.

Contextualiza????o: A obesidade ?? considerada um problema de sa??de p??blica. O desequil??brio entre os mecanismos pr?? e anti-inflamat??rio ?? respons??vel pela inflama????o cr??nica de baixo grau. Al??m de v??rias morbidades associadas a obesidade, esses indiv??duos apresentam disfun????es respirat??rias e altera????o na capacidade funcional o que reflete na capacidade f??sica. Objetivos: investigar o impacto da perda de peso induzida pela cirurgia bari??trica: na fun????o pulmonar, na for??a muscular respirat??ria (FMR) e, nos marcadores inflamat??rios sist??micos e pulmonares, de mulheres obesas sem altera????o da fun????o pulmonar; avaliar a reprodutibilidade do incremental…

Advisors/Committee Members: Costa, Dirceu, Jorge, Luciana Maria Malosa Sampaio, Costa, Dirceu, Chiavegato, Luciana Dias, Silva, Audrey Borghi, Angelis, K??tia de, Vieira, Rodolfo de Paula.

▼ 

Introdu??o: O Acidente Vascular Cerebral (AVC) ? um dos principais causadores de incapacidade e mortalidade no mundo. Suas consequ?ncias funcionais s?o heterog?neas e v?o al?m da defici?ncia/incapacidade/desvantagem para a realiza??o das atividades instrumentais da vida di?ria. Na fase aguda, fraqueza muscular, incluindo fraqueza da musculatura respirat?ria, e disfagia, contribui para infec??o pulmonar e morbimortalidade. Entretanto, embora alguns estudos sobre a for?a muscular respirat?ria (FMR), importante marcador de capacidade ventilat?ria e preditor de desempenho global, especialmente em indiv?duos com disfun??es neurol?gicas, tenham sido conduzidos em indiv?duos p?s-AVC na fase aguda, ainda pouco se sabe sobre tal vari?vel na fase cr?nica e, muito menos, sua associa??o com o risco de disfagia. Objetivo: Investigar a FMR e o risco de disfagia em idosos p?s-AVC isqu?mico (AVCi) em fase cr?nica. Os desfechos prim?rios de interesse foram a press?o inspirat?ria m?xima (PIm?x) e a press?o expirat?ria m?xima (PEm?x). O desfecho secund?rio foi o risco de disfagia e sua associa??o com a FMR. M?todo: Estudo transversal aprovado pelo comit? de ?tica em pesquisa cient?fica (CAAE 83573318.2.0000.5020 e parecer n? 2.520.8810). A FMR foi mensurada pela manovacuometria e o risco de disfagia pelo Eating Assessment Toll (EAT-10). Para mensurar o grau de incapacidade foi utilizada a medida de independ?ncia funcional (MIF). Os dados foram analisados pelo programa Epi Info vers?o 7.2 para Windows e apresentados por meio de tabelas, com frequ?ncias absolutas simples e relativas para os dados categ?ricos. Na an?lise dos dados quantitativos, quando rejeitada a hip?tese de normalidade por meio do teste de Shapiro-Wilk, foi calculada a mediana e os quartis (Qi). Na an?lise dos dados categorizados foi aplicado o teste do qui-quadrado ou o teste exato de Fisher. Na compara??o das medianas foi calculado o teste de Mann-Whitney ou Kruskal-Wallis. Para a an?lise da correla??o entre a FMR e o risco de disfagia foi utilizado o teste de Pearson. Foi considerado o n?vel de signific?ncia de 5%. Resultados: A FMR dos idosos p?s-AVCi em fase cr?nica foi menor do que a de seus controles pareados por sexo, idade e ?ndice de massa corporal (PImax p=0,002 e PEmax p<0,001) e a maioria deles apresentou fraqueza muscular respirat?ria. O risco de desenvolver disfagia foi baixo nos idosos p?s-AVCi na fase cr?nica, entretanto, aumentou quando associado a fraqueza muscular expirat?ria. A FMR dos idosos p?s-AVCi na fase cr?nica, se correlacionou negativamente com o risco de disfagia (PIm?x r = -0,629; PEm?x r = -0,399). Conclus?o: Mesmo na fase cr?nica p?s-AVCi, idosos apresentam fraqueza muscular respirat?ria e essa, aumenta a probabilidade de disfagia.

Introduction: Stroke is one of the leading causes of disability and mortality in the world. Its functional consequences are heterogeneous and go beyond disability/disadvantage to perform instrumental activities of daily living. In the acute phase, muscle weakness, including…

Advisors/Committee Members: Gon?alves, Roberta Lins, http://lattes.cnpq.br/7353579266183058, Andrade, Edson de Oliveira, http://lattes.cnpq.br/8405362482175322, Freire J?nior, Renato Campos, http://lattes.cnpq.br/9968000130595849, Furtado, Silv?nia da Concei??o, http://lattes.cnpq.br/8161931812320948.

▼ 

Made available in DSpace on 2015-04-14T13:53:23Z (GMT). No. of bitstreams: 1 409899.pdf: 394958 bytes, checksum: 725eceacf76d56711ddf95f28b391161 (MD5) Previous issue date: 2008-03-11

Introdu??o: O envelhecimento est? associado com a perda progressiva do desempenho do sistema ventilat?rio. A avalia??o da for?a da musculatura ventilat?ria ? importante para monitoramento das altera??es nas press?es ventilat?rias. No entanto, os valores de normalidade da press?o inspirat?ria m?xima (PIM) e da press?o expirat?ria m?xima (PEM) ainda s?o controversos na literatura. Objetivo: Verificar os valores da PIM e PEM em indiv?duos idosos. M?todos: A amostra foi definida atrav?s de um mapeamento distrital da cidade de Porto alegre, onde foram selecionados indiv?duos com idade igual ou superior a 60 anos, de forma randomizada, respeitando a proporcionalidade de cada regi?o. Foram inclu?dos neste estudo 509 indiv?duos, com idade igual ou superior a 60 anos, divididos em tr?s faixas et?rias, nos quais foram avaliados medidas de PIM e PEM atrav?s de manovacuometria. Resultados e conclus?es: os resultados indicam que as press?es ventilat?rias geradas pelos homens s?o maiores do que as mulheres nas tr?s faixas et?rias estudadas, que as press?es ventilat?rias apresentam correla??o negativa com a idade e que o efeito do aprendizado parece afetar mais mulheres do que os homens e apenas da primeira medida em rela??o ?s outras

Advisors/Committee Members: Machado, Denise Cantarelli.

▼ 

Submitted by Nadir Basilio ([email protected]) on 2016-05-24T21:11:50Z No. of bitstreams: 1 Fernanda Cordeiro da Silva.pdf: 1698143 bytes, checksum: 5188d9f0e1735fda1e319f632fa9f199 (MD5)

Made available in DSpace on 2016-05-24T21:11:50Z (GMT). No. of bitstreams: 1 Fernanda Cordeiro da Silva.pdf: 1698143 bytes, checksum: 5188d9f0e1735fda1e319f632fa9f199 (MD5) Previous issue date: 2015-12-17

Cerebrovascular Accident (Stroke) is an important aggravation to the health of the global population, which causes motor impairments that could compromise the masticatory muscles. The objective of this study was to evaluate complete hemiparesis, originating from a Stroke, which may cause greater orofacial compromise, altering the electromyographic activity and the force of the masticatory muscles associated to the temporomandibular dysfunction when compared to incomplete hemiparesis. Hemiparetic post-stroke individuals aged between 18 and 75 years of age were evaluated. The sample was divided into two groups: the Complete Hemiparetic group containing 29 individuals and the Incomplete Hemiparetic group containing 21 individuals. All of the groups were submitted to evaluation to diagnose TMD through RDC/TMD, bite force through the Kratos?? Dynamometer and electromyography of the masticatory muscles employing a 4-channel electromyography of the EMG System??. The results obtained were computed and the statistical analysis was made using the significance of 95% (p<0.05), where the significant statistical difference was observed in the TMD between the complete and incomplete hemiparetic group (p=0,01). However, regarding the bite force in the intergroup and/or intragroup, a statistical difference was not observed. As to the function of the upper limb, evaluated by SSQOL, and its relation to oral health, evaluated by OHIP-14, it was possible to observe the statistically significant correlation in the domains of Physical Pain, Functional Limitation, Psychological Discomfort, Physical Incapacity, Social Incapacity, Social Disadvantage and Psychological Incapacity. In all the domains stated above, the correlations were negative. Regarding the electromyography, a statistical significant difference was observed during rest, in the intergroup evaluation, both on the right side (p=0.005) and on the left (p=0.005). A negative correlation was verified, of moderate magnitude (-0.643) (p=0.02), among the electromyographic signals at rest and the male individuals that did not present TMD in the complete hemiparetic group. As to the time of injury, a negative correlation was also observed, of moderate magnitude (-0.663) (p=0.00) between the time of injury and the electromyographic signal in individuals without TMD also in the complete hemiparetic group, which allowed us to complete the relation between the TMD, time of injury and EMG in hemiparetic individuals with stroke, except for bite force which did not show a relation with hemiparesis. Finally, the orofacial function needs to be better understood, because it aggregates immeasurable…

Advisors/Committee Members: Bussadori, Sandra Kalil, Bussadori, Sandra Kalil, Castelo, Paula Midori, Fernandes, Kristianne Porta Santos.

▼ 

Submitted by PPG Medicina e Ci?ncias da Sa?de ([email protected]) on 2019-01-02T13:26:24Z No. of bitstreams: 1 GABRIELAACEVEDOFERREIRA.pdf: 1119548 bytes, checksum: 5ab300a71fcbd4f589e5d85bfe9c6677 (MD5)

Approved for entry into archive by Caroline Xavier ([email protected]) on 2019-01-08T15:56:41Z (GMT) No. of bitstreams: 1 GABRIELAACEVEDOFERREIRA.pdf: 1119548 bytes, checksum: 5ab300a71fcbd4f589e5d85bfe9c6677 (MD5)

Made available in DSpace on 2019-01-08T16:03:45Z (GMT). No. of bitstreams: 1 GABRIELAACEVEDOFERREIRA.pdf: 1119548 bytes, checksum: 5ab300a71fcbd4f589e5d85bfe9c6677 (MD5) Previous issue date: 2016-03-03

Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES

Infection by respiratory syncytial virus (RSV) is the leading cause of childhood hospitalization as well as a major health and economic burden worldwide. RSV causes RTI in adults and lower respiratory tract illness (LRTI), including acute bronchiolitis and pneumonia, in infants and young children. Unfortunately, RSV infection provides only limited immune protection to reinfection, mostly due to inadequate immunological memory, which leads to an exacerbated inflammatory response in the respiratory tract promoting airway damage during virus clearance. Despite extensive research efforts, safe and effective vaccines against RSV are currently unavailable. Nevertheless, a prophylactic strategy based on a humanized neutralizing antibody against RSV is widely used in new born at high-risk, such as preterm infants and those suffering from cardiovascular diseases and immunosuppression. The alveolar epithelial cells are the first line of defense against the virus, most associated with the local inflammation in the disease. The entry of respiratory syncytial virus to alveolar epithelial cells (AECs) is an important step in the infection process involving binding of the RSV G and F protein molecules bound to the surface of the host cell. Infection with respiratory syncytial virus is associated with the epithelial cell death and vigorous inflammation, apoptotic death of infected cells is a mechanism to reduce virus replication. And this study showed infection induced by active respiratory syncytial virus in the epithelial cells of the A549 line showing the pathway of cell death induced by the host cells, our results show the pathway of apoptosis induced from the caspase-3 activation and no dependence production of the production of reactive oxygen species.

A infec??o pelo v?rus sincicial respirat?rio (VSR) ? a principal causa de hospitaliza??o infantil, bem como um grande problema de sa?de e dos custos econ?micos no mundo inteiro. VSR causa infec??o do trato respirat?rio (RTI) em adultos e doen?a do trato respirat?rio inferior (ITRI), incluindo bronquiolite aguda e pneumonia, em crian?as e crian?as jovens. Infelizmente, a infec??o por RSV fornece uma prote??o imune limitada ? uma reinfec??o, principalmente devido a mem?ria imunol?gica insuficiente, o que conduz a uma resposta inflamat?ria exacerbada no trato respirat?rio…

Advisors/Committee Members: Jones, Marcus Herbert, Porto, B?rbara Nery.

▼ 

Made available in DSpace on 2015-04-14T13:33:04Z (GMT). No. of bitstreams: 1 448527.pdf: 415770 bytes, checksum: 09e12a0bd7a9b1c0393a3bdb829d942c (MD5) Previous issue date: 2013-03-04

Acute wheezing is a leading cause of hospitalization in infants. Previous studies have described a difference in the severity of the disease depends on the virus identified in a sample of air, but some studies show conflicting results. This study is therefore to evaluate the relationship between the causative pathogen of lower respiratory tract infection (LRTI) and length of stay in a sample of infants from Porto Alegre. The nasopharyngeal specimens for testing of respiratory viruses by immunofluorescence and polymerase chain reaction were collected between 09/2009 and 09/2011. We recruited patients at the Hospital S?o Lucas diagnosed with LRTI. We analyzed 122 samples from patients with LTRI, and of these, 65 (51.2%) were positive for respiratory syncytial virus infection (RSV). Besides these samples, 15 were positive for influenza, 5 to rhinovirus, parainfluenza to 10, 3 to metapneumov?rus and 3 for adenovirus. When we used length of stay as a marker of severity, patients with RSV were, on average, 6.74 ? 4.39 days hospitalized, while patients infected with other viruses were only 4.97 ? 2.64 days hospitalized, on average; this difference was statistically significant. However, when we used other risk factor as family history of asthma, number of siblings and sex, there was no significant difference. The study demonstrated high overall positive tests for virus, with the predominance of RSV. The study suggests that RSV may be considered as a risk factor for ITRI severity

As crises de sibil?ncia desencadeadas por v?rus est?o entre as principais causas de interna??o hospitalar em lactentes. Estudos pr?vios descreveram uma diferen?a na severidade da doen?a dependente do v?rus identificado em amostra de via a?rea, por?m alguns trabalhos apresentam resultados conflitantes. Este estudo tem, portanto, o objetivo de avaliar a rela??o entre o pat?geno causador da infec??o e tempo de interna??o, em uma amostra de lactentes de Porto Alegre. As amostras de secre??o nasofar?ngea para pesquisa de v?rus respirat?rios por imunofluoresc?ncia direta (IFD) e polymerase chain reaction (PCR) foram coletadas no per?odo 09/2009 e 09/2011. Foram recrutados pacientes internados no Hospital S?o Lucas da PUCRS com diagn?stico de infec??o do trato respirat?rio inferior (ITRI). Foram analisadas 122 amostras de pacientes com ITRI, e destas, 65 (51,2%) foram positivas para infec??o por v?rus sincicial respirat?rio (VSR). Al?m destas amostras, 15 foram positivas para influenza, 5 para rinov?rus, 10 para parainfluenza, 3 para metapneumov?rus e 3 para adenov?rus. Quando utilizamos o tempo de interna??o como um marcador de gravidade, pacientes com VSR ficaram, em m?dia, 6,74 ? 4,39 dias internados, enquanto pacientes sem VSR ficaram apenas 4,97 ? 2,64 dias internados, em m?dia, sendo esta diferen?a estatisticamente significativa. Por?m quando avaliados outros…

Advisors/Committee Members: Pinto, Leonardo Ara?jo.

▼ 

Made available in DSpace on 2015-04-14T13:34:27Z (GMT). No. of bitstreams: 1 348291.pdf: 458205 bytes, checksum: 45606c1ddd55987046178a6802230346 (MD5) Previous issue date: 2006-06-05

Introdu??o: A s?ndrome da apn?ia-hipopn?ia obstrutiva do sono (SAHOS) caracteriza-se por epis?dios repetidos de cessa??o ou de diminui??o do fluxo das vias a?reas superiores. Apresenta como importante fator de risco para seu desenvolvimento a obesidade. Na atualidade, o tratamento de elei??o em pacientes adultos baseia-se no uso de continuous positive airway pressure (CPAP) e no emagrecimento em pacientes obesos. O emagrecimento por meio de dieta, freq?entemente, proporciona resultados desapontadores; enquanto o uso do CPAP, n?o apresenta boa ades?o. A cirurgia bari?trica surgiu, nos ?ltimos anos, como forma de tratar a obesidade m?rbida e v?rias das comorbidades associadas. M?todo: Estudo de coorte envolvendo 12 pacientes obesos m?rbidos, com SAHOS moderada a grave, submetidos ? cirurgia de redu??o g?strica com deriva??o em Y de Roux, entre dezembro de 2002 e julho de 2004. Os pacientes foram reavaliados ap?s per?odo m?nimo de 18 meses em seguimento da cirurgia. Mediram-se as altera??es nos par?metros de polissonografia atrav?s do ?ndice de apn?ia e hipopn?ia (IAH) e da satura??o da hemoglobina; enquanto os sintomas de sonol?ncia diurna foram avaliados por meio do question?rio de Epworth. Resultados: A perda m?dia (? desvio padr?o) do excesso de peso foi 70,5 ?24%. A avalia??o da sonol?ncia diurna mostrou uma pontua??o m?dia de 4,8. Houve redu??o significativa no IAH, de mediana (m?nimo m?ximo) 46,5 (33-140) eventos por hora para 16 (0,9 87) (P<0,05), e melhora na satura??o basal da hemoglobina com m?dia de 85,7 ?5,1% para 94,5 +3,6% (P<0,05) e no nadir da satura??o da hemoglobina, de 64,7 ?13,4% para 78,7 ?13,7% (P<0,05). Verificou-se correla??o positiva entre a perda do excesso de peso com a melhora no nadir da satura??o da hemoglobina (r= 0,59; P≤0,05) e na satura??o basal (r= 0,76; P≤0,01). Conclus?es: A cirurgia bari?trica pode proporcionar excelente perda de peso, resolu??o dos sintomas de sonol?ncia diurna e melhoras significativas na obstru??o do fluxo a?reo e na oxigena??o, podendo, dessa forma, ser uma modalidade de tratamento a ser considerada em pacientes obesos m?rbidos com apn?ia obstrutiva do sono.

Advisors/Committee Members: Chatkin, Jos? Miguel.

▼ 

Submitted by LIVIA FREITAS ([email protected]) on 2013-10-08T14:29:10Z No. of bitstreams: 1 01_dissertacao_Margarete.pdf: 1682975 bytes, checksum: e56338651014199361014446db75d844 (MD5)

Approved for entry into archive by LIVIA FREITAS([email protected]) on 2013-10-08T14:31:51Z (GMT) No. of bitstreams: 1 01_dissertacao_Margarete.pdf: 1682975 bytes, checksum: e56338651014199361014446db75d844 (MD5)

Made available in DSpace on 2013-10-08T14:31:51Z (GMT). No. of bitstreams: 1 01_dissertacao_Margarete.pdf: 1682975 bytes, checksum: e56338651014199361014446db75d844 (MD5)

Forma c~ao veicular e uma aplica c~ao t pica de sistemas multiagentes, na qual ve?? culos automatizados (e.g. ve?? culos aut??nomos, rob??s m oveis) devem entre si assumir e manter uma forma c~ao. Para a correta execu c~ao desta aplica c~ao e necess ??rio ter dispon?? veis mecanismos de comunica c??o con aveis, garantindo a troca de mensagens entre os ve?? culos. Estas mensagens s~ao trocadas atrav es de uma rede de comunica c~ao m ovel, como as redes MANETs e VANETs. Entretanto, tais redes, chamadas de redes Ad Hoc, n~ao fornecem garantias a comunica c~ao, podendo existir perda de mensagens ou da conectividade entre os n os. Isto ocorre devido a movimenta c~ao dos ve ??culos, efeitos clim aticos, entre outros que degradam a capacidade de comunica c??o entre eles. Assim, propomos uma abordagem com base em regras para o desenvolvimento de servi ??os de comunica c~ao para as aplica ????es veiculares e criamos o I-CAR que e um conjunto de servi ??os inteligentes de comunica ????o para redes de comunica c??o veiculares, focado na aplica ????o da forma ????o veicular. Estes servi ??os executam de forma distribu?? da, como m ??dulos associados a cada agente veicular do sistema. Estes servi ??os s??o constru ??dos como regras, possibilitando ao ve?? culo aut??nomo tomar decis??es inteligentes a cerca das melhores formas de transmitir mensagens atrav ??s da rede, assim como, de detectar a falha de outros ve?? culos a partir da comunica c??o. Constru?? mos uma implementa c~ao destes servi ??os utilizando o simulador de redes OMNet++, em conjunto com o simulador de tr?? fego veicular SUMO, sendo realizadas diversas simula ????es para verifi car o funcionamento do sistema. Os resultados obtidos demonstram que a sobrecaga e a perda de mensagens geradas pelo sistema n??o comprometem o funcionamento do mecanismo proposto.

Salvador

Advisors/Committee Members: Gorender, S??rgio.

▼ 

Submitted by P??s-Com P??s-Com ([email protected]) on 2012-10-23T14:52:03Z No. of bitstreams: 1 Nisia Rizzo de Azevedo.pdf: 3108815 bytes, checksum: 114b37053508489ee3fbc541b1dac8ab (MD5)

Made available in DSpace on 2012-10-23T14:52:03Z (GMT). No. of bitstreams: 1 Nisia Rizzo de Azevedo.pdf: 3108815 bytes, checksum: 114b37053508489ee3fbc541b1dac8ab (MD5)

A pesquisa visa identificar os posicionamentos discursivos no website do Observat??rio da Imprensa (OI) a partir do sistema de t??tulos e do conte??do de 34 artigos das edi????es selecionadas, nos anos de 2009 e 2010, al??m da evolu????o da disposi????o de mat??rias significantes em sua webpage ao longo de seus 15 anos de funcionamento. A an??lise parte de uma quest??o central: que modelos de m??dia, de leitor e de monitoramento de m??dia s??o propostos no discurso do website do OI? Para responder essa quest??o, combinamos a an??lise de conte??do ?? an??lise dos discursos, especificamente o m??todo de an??lise dos dispositivos de enuncia????o proposto por Eliseo Ver??n. Procuramos articular tamb??m pol??tica e comunica????o, situando os observat??rios de m??dia simultaneamente como parte da esfera p??blica midi??tica em plataforma digital e como sistemas de resposta social aos discursos da m??dia. A an??lise conclui que o OI inscreve seu lugar social ao tecer cr??ticas ao jornalismo brasileiro contempor??neo, imerso em uma situa????o de crise, e estabelece com a m??dia e seu leitorado (em especial, os jornalistas) uma rela????o assim??trica bem semelhante ??quela entre mestre e aprendiz.

Universidade Federal da Bahia

Advisors/Committee Members: Ferreira, Giovandro.

▼ 

Made available in DSpace on 2015-04-14T13:35:32Z (GMT). No. of bitstreams: 1 438586.pdf: 851444 bytes, checksum: 4403bec36e79f61219a752dde80a37db (MD5) Previous issue date: 2012-03-28

Introduction: Spasticity is an incapacitating condition resultant from central nervous system injury such as the cerebral vascular accident, commonly known as stroke (STK). It is usually associated with hypertony and with a reduction in skeletal muscle force production. This condition may generate imbalance between antagonistic muscles at the ankle joint, which can be evaluated by torque ratios (TR). Purpose: to compare the dorsiflexor/plantarflexor (DF/PF) torque ratios between a post-stroke hemiparetic spastic group (STK) and a healthy control group (CON) and to evaluate STK group functionality. Methods: an isokinetic dynamometer was used to obtain maximal PF and DF torques at an angular velocity of 60?/s of hemiparetic spastic subjetcs (59.7 ? 13.74 years of age) and twelve healthy subjects (59.0 ? 13.64 years of age). TR were obtained through the division between the maximal DF and maximal PF torques. The STK group had their functionality evaluated through the Berg Balance Scale (BBS), the Barthel Index (BI), and the Timed Up and Go test (TUG). A Mann Whitney U test was used for the within group (spastic x non-spastic limbs) and for the between group (spastic x control) comparisons of the scale results and TR, whereas an independent T-test was used for the between groups comparison of the anthropometric variables (p ≤0.05). Results: The within STK group comparison revealed higher TR in the spastic side compared to the non-spastic contralateral side (0,81?0,25 and 0,43?0,41 respectively; p=0.01). The inter-group comparison revealed that the TR of the spastic side of the STK group was higher compared to the dominant side of the CON group (0,81?0,25 and 0,30? 0,10 respectively; p≤0.01). No differences were observed for the TR between the non-spastic side of the STK group and the dominant side of the CON group (0,43?0,41 and 0,30? 0,10 respectively; p=0.56). In addition, no changes in functionality were observed in the STK patients. Discussion: These results indicate that both limbs of the STK group show muscle imbalance, which might be explained by the smaller PF torque in both limbs, resulting on an elevated TR. The elevated TR found in the CON group is probably related to the fact that all subjects were sedentary. The STK group showed normal values for functionality, suggesting that the time post injury and the spasticity degree probably influence the results of these scales. Conclusion: Muscle imbalance is present in both lower limbs of post-STK patients, although the TR are more affected in the spastic side.

Introdu??o: a espasticidade ? uma condi??o incapacitante decorrente de les?es do sistema nervoso central como o acidente vascular cerebral (AVC), podendo estar associada com a hipertonia e diminui??o da for?a nos m?sculos. Tal condi??o pode gerar desequil?brios entre as musculaturas da articula??o do…

Advisors/Committee Members: Silva Filho, Irenio Gomes da.

▼ 

Submitted by Barroso Patr??cia ([email protected]) on 2014-08-16T18:47:19Z No. of bitstreams: 1 TRENCH, Janayna de Aguiar.pdf: 2254917 bytes, checksum: b188c8abf18cab35be260a7bf186d20c (MD5)

Made available in DSpace on 2014-08-16T18:47:19Z (GMT). No. of bitstreams: 1 TRENCH, Janayna de Aguiar.pdf: 2254917 bytes, checksum: b188c8abf18cab35be260a7bf186d20c (MD5)

A deformidade dentofacial (DDF) pode ser definida como sendo a condi????o em que o esqueleto facial foge ?? normalidade anat??mica e funcional. De acordo com os diferentes tipos, as DDFs geram altera????es miofuncionais considerando-se cada padr??o de bases ??sseas. Objetivo: analisar e descrever como ocorrem as fun????es estomatogn??ticas de acordo com os diferentes tipos de DDFs, tendo como referencial a atividade el??trica muscular do masseter e do temporal anterior (TA) em rela????o ?? mastiga????o, independente de terem ou n??o diagn??stico de disfun????o temporomandibular (DTM). Metodologia: trata-se de um estudo descritivo, anal??tico e de car??ter transversal, envolvendo uma amostra de 50 indiv??duos portadores de DDF frente ao grupo controle (GC) constitu??do por 46 indiv??duos saud??veis. A coleta de dados aconteceu entre os meses de julho a setembro de 2013, e consistiu na realiza????o de tr??s etapas: a primeira foi a aplica????o do instrumento Crit??rios Diagn??sticos para DTM (RDC/TMD) a fim de diagnosticar a DTM; a segunda compreendeu a avalia????o miofuncional orofacial, mediante a aplica????o do protocolo MBGR, enquanto que na terceira foi realizada a aquisi????o dos registros eletromiogr??ficos. O protocolo estat??stico fundamentouse na an??lise descritiva dos dados. Resultados: todos os sujeitos portadores de DDF avaliados apresentaram altera????es na execu????o das fun????es estomatogn??ticas sendo que tais altera????es variaram de acordo com o tipo de DDF apresentada. N??o foi estabelecida rela????o alguma entre a DTM e as DDFs analisadas, uma vez que, apenas, 12 indiv??duos apresentaram diagn??stico de DTM. De acordo com a metodologia empregada, a m??dia da atividade el??trica (AE) dos m??sculos masseter e TA no grupo DDF revelou estar diminu??da quando comparada ?? m??dia atribu??da aos indiv??duos do GC, sendo considerada a contra????o isom??trica volunt??ria m??xima (CIVM) e a fun????o mastigat??ria, respectivamente. A AE muscular em CIVM e durante a mastiga????o revelou estar relacionada ao padr??o mastigat??rio. Conclus??o: os diferentes tipos de DDF est??o relacionados ??s altera????es detectadas no desempenho das fun????es estomatogn??ticas; em indiv??duos portadores de DDF a atividade el??trica do masseter e do temporal anterior em CIVM e na mastiga????o est?? diminu??da; independente de estarem alterados, os diferentes padr??es mastigat??rios est??o associados ?? atividade el??trica do masseter e do TA na CIVM e na mastiga????o.

Advisors/Committee Members: Ara??jo, Roberto Paulo Correia de.

▼ 

Submitted by Caroline Xavier ([email protected]) on 2017-06-29T12:05:10Z No. of bitstreams: 1 TES_VERONICA_BAPTISTA_FRISON_PARCIAL.pdf: 2069499 bytes, checksum: aa6537076bca37dc159c3291dcc3c904 (MD5)

Approved for entry into archive by Caroline Xavier ([email protected]) on 2017-06-29T12:05:22Z (GMT) No. of bitstreams: 1 TES_VERONICA_BAPTISTA_FRISON_PARCIAL.pdf: 2069499 bytes, checksum: aa6537076bca37dc159c3291dcc3c904 (MD5)

Made available in DSpace on 2017-06-29T12:05:34Z (GMT). No. of bitstreams: 1 TES_VERONICA_BAPTISTA_FRISON_PARCIAL.pdf: 2069499 bytes, checksum: aa6537076bca37dc159c3291dcc3c904 (MD5) Previous issue date: 2016-11-11

Background: Traumatic spinal cord injury (TSCI) is a severe, incapacitating, neurological syndrome that leads to changes in sensitivity, motor function, and the autonomic system of body segments located below the level of injury. Although it is one of the most devastating injuries and poses multiple challenges for the patients, family, and clinicians involved, physical therapy can lead to neurological improvements in patients with TSCI. The purpose of this study was to evaluate the effects of corporal suspension and pendulum exercises (CHORDATA? method) on torque, muscle activation, muscle thickness, and functionality in patients with TSCI. Methods: This study was a randomized, controlled clinical trial including 26 male TSCI patients (in whom injury occurred up to 3 years earlier at the thoracic level; age, 18?65 years). The subjects were categorized into two groups: an intervention group (IG; n = 14) and a control group (CG; n = 12). Before and after a rehabilitation program, which comprised 16 sessions of suspension and pendulum exercises (twice/week, 50 minutes/session), we evaluated the following parameters in each subject: maximal voluntary isometric trunk flexion and extension torques; electromyographic activity of the external oblique, rectus abdominis, and longissimus muscles; muscle thickness of the external oblique, internal oblique, transversus abdominis, rectus abdominis, and multifidus muscles; and functionality (adapted reach test). Mean ? standard deviation values were used to summarise continuous data, which were then compared at the baseline using t-tests. Categorical variables were expressed as counts and percentages. Between-group baseline differences were assessed using chi-square or Fisher?s exact tests, as required. Analysis of covariance, with adjustments for baseline measurements, was conducted to evaluate between-group differences after the 16 exercise sessions. The results were presented as mean ? standard deviation with the estimated adjusted difference between groups, followed by 95% confidence intervals. The study significance level was set at ? = 0?05. Data were analysed using SPSS version 22.0 (SPSS, Inc., Chicago, USA).This trial is registered with Clinical Trials.gov,NCT02316067. Findings: The CG and IG patients had similar ages (p = 0?93), injury time (p = 0?41), injury level (p = 0?27), injury…

Advisors/Committee Members: Franco, Alexandre Rosa, Vaz, Marco Aur?lio.

▼ 

Submitted by PPG Pediatria e Sa?de da Crian?a ([email protected]) on 2018-01-02T11:40:26Z No. of bitstreams: 1 Dissertac?a?o Priscila pdf.pdf: 3242530 bytes, checksum: 999aeae67d6a04e5bb05fcc72320c911 (MD5)

Approved for entry into archive by Caroline Xavier ([email protected]) on 2018-01-24T10:38:11Z (GMT) No. of bitstreams: 1 Dissertac?a?o Priscila pdf.pdf: 3242530 bytes, checksum: 999aeae67d6a04e5bb05fcc72320c911 (MD5)

Made available in DSpace on 2018-01-24T10:46:56Z (GMT). No. of bitstreams: 1 Dissertac?a?o Priscila pdf.pdf: 3242530 bytes, checksum: 999aeae67d6a04e5bb05fcc72320c911 (MD5) Previous issue date: 2017-02-24

Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES

Introduction: The Pediatric obstructive sleep apnea screening tool is a short hierarchical 6-item questionnaire developed to evaluate sleep disordered breathing in 3 to 9 years old children. This set of questions allows to discriminate children at high risk of obstructive sleep apnea (OSA) and to screen which patients need promptly objective diagnostic tests and treatment. Objective: To validate the Pediatric Obstructive Sleep Apnea Screening Tool to be used in Brazil, in a Portuguese language version. Methods: The Brazilian version of the questionnaire was developed as following: a) translation; b) back-translation; c) conclusion of final version and d) pretesting. The questionnaire was applied previously to the polysomnography in 3 to 9 years old children included in the study from October 2015 until October 2016. Validity and reliability were the psychometric proprieties evaluated. The comparison between polysomnography results and the questionnaire`s cumulative score allowed the accuracy evaluation. Results: Sixty patients were included in the final sample. Accordingly to the polysomnography, 29 (48%) patients had normal apnea and hipopnea index and 31 (51,7%) presented abnormal results. The minimum O2 saturation level was significantly lower among children with OSA (p=0,021). Satisfactory concordance was observed between the apnea and hipopnea index and the questionnaire score. The Brand Altman bias plot was 0,1 for the difference between two measures, with 5,34 (IC95% 4,14 to 6,55) of upper limit agreement and -5,19 (IC95% -6,39 to -3,98) of the agreement lower limit. The questionnaire?s internal consistency calculated by Cronbach's alpha was 0,848 (IC95% 0,780-0,901). Conclusion: The Pediatric obstructive sleep apnea screening tool was translated and validated to an adequate Brazilian-Portuguese version. The questionnaire presented satisfactory results of reliability and concordance in relation to the apnea and hipopnea index.

Introdu??o: O Pediatric obstructive sleep apnea screening tool ? um question?rio com 6 itens de avalia??o de dist?rbios respirat?rios do sono em crian?as de 3 a 9 anos de idade. ? um instrumento de f?cil aplica??o que consegue discriminar as crian?as com maior risco para s?ndrome da apneia obstrutiva do sono (SAOS) e, consequentemente, que necessitam com maior…

Advisors/Committee Members: Stein, Renato Tetelbom.

Tese de mestrado integrado. Engenharia Civil (Área de Especialização de Hidráulica). Faculdade de Engenharia. Universidade do Porto. 2012 Advisors/Committee Members: Maia, Rodrigo Jorge Fonseca de Oliveira, Universidade do Porto. Faculdade de Engenharia.

▼ 

Submitted by PPG Gerontologia Biom?dica ([email protected]) on 2017-11-20T10:28:02Z No. of bitstreams: 1 FERREIRA_OLIVEIRA_LEONARDO_TESE.pdf: 7911824 bytes, checksum: 45902ffd315db92b8af53a56e81440f3 (MD5)

Approved for entry into archive by Caroline Xavier ([email protected]) on 2017-11-28T17:26:16Z (GMT) No. of bitstreams: 1 FERREIRA_OLIVEIRA_LEONARDO_TESE.pdf: 7911824 bytes, checksum: 45902ffd315db92b8af53a56e81440f3 (MD5)

Made available in DSpace on 2017-11-28T17:33:51Z (GMT). No. of bitstreams: 1 FERREIRA_OLIVEIRA_LEONARDO_TESE.pdf: 7911824 bytes, checksum: 45902ffd315db92b8af53a56e81440f3 (MD5) Previous issue date: 2017-09-04

Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES

Introduction: Botulinum toxin is a zinc-dependent metalloprotease and promotes cleavage of the receptor responsible for botulinum toxin type A with consequent paralysis at the neuromuscular junction. In addition to blocking the release of acetylcholine, it inhibits the local release of pain-related neuropeptides. Although more recognized in aesthetics, it is indicated in the treatment of several disorders. Objective: To evaluate the efficacy and duration of the effect of botulinum toxin type A (incobotuliniumtoxin A) applied to the frontal muscle of women, being reconstituted in zinc gluconate compared to dilution in physiological solution. Methods: This is a prospective, double-blind study. The sample size was 48 females, over 50 years of age and divided into two groups, being calculated using the G-Power program to verify the association between variables. For this purpose an effect of 0.5, a power of the test of 80% and a level of confidence of 95% were used. The comparison between the two groups was performed by the Mann-Whitney test. The non-parametric test was chosen because the variables had no normal distribution (Kolmogorov-Smirnov p> 0.05). The various moments were compared by the Kruskall-Wallis test. In the control group, Incobotuliniumtoxin A flasks (100 U) were diluted in 2 mL of 0.9% sodium chloride physiological solution. In the case group, it was diluted with 2 mL of a 0.02% zinc gluconate solution. Participants were monitored using the Merz-Esthetics validated scale of resting and moving frontal lines and documented by means of digital photography, the results of which were analyzed by Wilcoxon's non-parametric test to compare the frontal lines before and after the application. To characterize the groups, descriptive statistics methods were used as frequencies and percentages for categorical variables and median, minimum and maximum for quantitative variables. The chi-square and Manny-Whitney tests were used to verify the homogeneity of the groups in relation to the clinical variables. Results: The results showed that there is no relationship between race, ethnicity, smoking and sunscreen use with the toxin effect in the two groups. For the variables age and amount weekly zinc intake the Manny-Whitney test result indicated that there was no significant difference in the groups.…

Advisors/Committee Members: Machado, Denise Cantarelli.

▼ 

Submitted by Nadir Basilio ([email protected]) on 2018-07-20T20:10:21Z No. of bitstreams: 1 Erica Feio Carneiro Nunes.pdf: 1021018 bytes, checksum: 040c57768f7aed071b8aa73bd056ade6 (MD5)

Made available in DSpace on 2018-07-20T20:10:21Z (GMT). No. of bitstreams: 1 Erica Feio Carneiro Nunes.pdf: 1021018 bytes, checksum: 040c57768f7aed071b8aa73bd056ade6 (MD5) Previous issue date: 2018-03-06

Contextualization: Weakening of pelvic floor muscles (PMFs) has been considered a major cause of stress urinary incontinence (SUI). In this way, the physiotherapeutic treatment, classically, turned to the strengthening of these muscles. In this study it was hypothesized that, in addition to PMFs weakness, this dysfunction may also be related to a change in the pattern of reflex response of these muscles. Objective: The study objectives were to compare the contraction response time and strength of cough-induced PMFs among continents and SUI women, and to conduct a literature review on the use of biofeedback for pelvic floor muscle training in women with this dysfunction. Methods: Study II: A systematic review was conducted with a search of the databases Science Direct, Embase, MEDLINE, Pedro, SciELO, CINAHL and LILACS for randomized clinical trials that had biofeedback (BF) as a therapeutic tool for SUI. Study II: This was a cross-sectional study that evaluated the cough PMFs of 20 healthy women and 20 women with SUI. The clinical evaluation consisted of the application of questionnaires that assessed the severity of urinary incontinence and quality of life. Signal capture was performed with a 4-channel acquisition system (EMG System do Brasil Ltda??) to capture the signals obtained through vaginal dynamometry, electromyography (EMG) of the right external obliquus muscle and accelerometry. Statistical analysis was performed using the Shapiro-Wilk, independent t test or Mann-Whitney test according to the data distribution and the covariance analysis (ANCOVA) with post hoc Bonferrone test. The statistical significance considered for all tests was p <0.05. Results: Study I: the training of the PMFs with BF was not better than the control group (without training and orientation, vaginal electrical stimulation). However, these contradictory results and poor quality of the studies are probably not clinically significant. Study II: the contraction response of the PMFs was significantly different between the groups for the activation time of the PMFs (F = 19.51, P <0.0001, ???p2= 0.61), external oblique muscle activation time (F = 11.41, P <0.002, ???p2= 0.23) and time of the cough pulse (F = 4.21, P <0.04, ???p2= 0.10). Conclusion: The systematic review provides evidence that the training of BF-PMFs does not offer superior therapeutic benefits to other types of interventions in the treatment of female SUI. The cross-sectional study showed that women with SUI have delayed cough-induced contraction of PMFs.

Contextualiza????o: O enfraquecimento dos m??sculos do assoalho p??lvico (MAPs) tem sido considerada uma das principais causas…

Advisors/Committee Members: Politti, Fabiano, Politti, Fabiano, Correa, Fernanda Ishida, Biasotto-Gonzalez, Daniela Aparecida, Amorim, C??sar Ferreira.

▼ 

Made available in DSpace on 2015-04-14T13:33:00Z (GMT). No. of bitstreams: 1 443017.pdf: 2210506 bytes, checksum: 3a7acd28aaf707a50f139c101de1198b (MD5) Previous issue date: 2012-01-23

Objective : To compare the effectiveness of two techniques of respiratory therapy in an experimental model of atelectasis by bronchial obstruction in newborn pigs. Methods : 24 pigs were analgesiados, sedated, tracheostomized and mechanically ventilated. For the induction of atelectasis, artificial mucus was infused (ethylene oxide, Sigma-Aldrich , USA) using an infusion pump through the tracheal tube with the pigs in the lateral position and inclined to the 30th. Confirmation of atelectasis was a chest X-ray or by a pressure drop of oxygen in arterial blood. After the animals were divided into 3 groups: group 1 that received tracheal aspiration after 20 minutes of confirmation of atelectasis, group 2 underwent the technique of bag squeezing over tracheal aspiration and group 3 received vibration chest. To evaluate the effectiveness of techniques one second X-ray was done. To evaluate the changes during the procedures were performed arterial blood gases and pulmonary mechanics evaluation pneumotachograph before and after the induction of atelectasis immediately and 30 minutes after the procedure. Results : The mean percentage change in the PO2 was statistically detect significant between the groups (control: 97,80?37,33, bag squeezing: 166,75?68,63 e vibration: 104,41?45,45, p=0,0408), with improvement in oxygenation in the group undergoing the technique of squeezing bag. The remaining variables did not differ. Conclusions : the results suggest that the technique of squeezing bag is more efficient than manual vibration, but clinical improvement was not accompanied by detectable radiological improvement.

Objetivo : comparar a efic?cia de duas t?cnicas de fisioterapia respirat?ria, em modelo experimental de atelectasia, por obstru??o br?nquica em su?nos rec?m-nascidos. M?todos : 24 su?nos foram analgesiados, sedados, traqueostomizados e ventilados mecanicamente. Para a indu??o da atelectasia, foi infundido muco artificial Poli (oxido de etileno), (Sigma- Aldrich , Estados Unidos), com bomba de infus?o, atrav?s do tubo traqueal ,com os su?nos posicionados em dec?bito lateral, com inclina??o de 30o. A produ??o de atelectasia foi confirmada atrav?s de radiologia tor?cica. Para tanto, os animais foram divididos em 3 grupos: o grupo 1 recebeu apenas aspira??o traqueal ap?s 20 minutos da confirma??o da atelectasia; o grupo 2 foi submetido ? t?cnica de bag squeezing seguida de aspira??o traqueal; e o grupo 3 recebeu vibra??o tor?cica seguida de aspira??o traqueal. A efic?cia das t?cnicas foi avaliada atrav?s de exame radiol?gico, feito por dois radiologistas independentes. Para avaliar as altera??es durante os procedimentos, foram feitas gasometria arterial e avalia??o da mec?nica pulmonar antes e depois da indu??o de atelectasia, bem como imediatamente e 30 minutos ap?s os procedimentos. Resultados : a m?dia da varia??o percentual da…

Advisors/Committee Members: Fiori, Humberto Holmer.

▼ 

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS ([email protected]) on 2015-05-05T11:56:20Z No. of bitstreams: 1 467970 - Texto Completo.pdf: 1347522 bytes, checksum: 93776b58ac05be71adf68fee7381621e (MD5)

Made available in DSpace on 2015-05-05T11:56:20Z (GMT). No. of bitstreams: 1 467970 - Texto Completo.pdf: 1347522 bytes, checksum: 93776b58ac05be71adf68fee7381621e (MD5) Previous issue date: 2015-03-06

CONTEXT : Probiotics have emerged as a promising intervention for the prevention of respiratory infections in children, according to several randomized controlled trials.OBJECTIVE : Critically assess the effect of probiotics on prevention of respiratory tract infections in children and adolescents.METHODS: Data Sources: Searches were conducted on February 24, 2014 in the following databases: MEDLINE, EMBASE, LILACS, SCIELO, CINAHL, SCOPUS, and Web of Science. The following combinations of terms were used: ?respiratory tract infections? AND probiotics. Study selection: Randomized clinical trials assessing the effect of probiotics on respiratory tract infections (RTIs) in children and adolescents were included. Studies involving children with chronic diseases or other pre-existing comorbidities and those that did not specifying the type of probiotic were excluded. Data extraction and Synthesis: Two reviewers, working independently, screened all titles and abstracts to identify studies that met the eligibility criteria. Pairwise and network analyses were performed to identify the effects of probiotics on respiratory infections. Main outcomes and Measures: Main and secondary outcomes were respiratory tract infections and adverse effects, respectively.RESULTS : Twenty-one trials with 6.603 participants were included. Direct comparison analysis suggested that Lactobacillus casei rhamnosus (LCA) was the only effective probiotic to the rate of respiratory infections compared to placebo (RR0.38; Crl 0.19-0.45). Network analysis showed that the Lactobacillus casei rhamnosus probiotic exhibited a 54.7% probability of being classified in first, while the probability of Lactobacillus fermentum CECT5716 (LFC) being last in the ranking was 15.3%. Lactobacillus casei rhamnosus showed no better effect compared to other probiotic strains by indirect analysis. CONCLUSION : This systematic review found a lack of evidence to support the effect of probiotic supplementation on the incidence rate of respiratory tract infections in children and adolescents.

INTRODU??O: Os probi?ticos ganhando espa?o como uma interven??o promissora para a preven??o de infec??es respirat?rias em crian?as e adolescentes, de acordo com v?rios ensaios cl?nicos randomizados controlados.OBJETIVOS : Avaliar criticamente o efeito de diferentes probi?ticos na preven??o de infec??es do trato respirat?rio em crian?as e adolescentes.M?TODOS : Busca dos dados: Foram realizadas buscas em 24 de fevereiro de 2014 nas seguintes bases de dados: MEDLINE, EMBASE, LILACS, SCIELO, CINAHL, Scopus e Web of Science. Foram utilizadas as seguintes combina??es de…

Advisors/Committee Members: Jones, Marcus Herbert.

▼ 

Submitted by Barroso Patr??cia ([email protected]) on 2013-04-04T18:10:02Z No. of bitstreams: 1 Disserta????o_final_REVMarcos_Freire_21ago_REVNidia_01set_ 201.pdf: 6532433 bytes, checksum: 4a5a2e9ee929d891b888a1270d2b4604 (MD5)

Made available in DSpace on 2013-04-04T18:10:02Z (GMT). No. of bitstreams: 1 Disserta????o_final_REVMarcos_Freire_21ago_REVNidia_01set_ 201.pdf: 6532433 bytes, checksum: 4a5a2e9ee929d891b888a1270d2b4604 (MD5) Previous issue date: 2011

Introdu????o: O Diabetes Mellitus tipo 2 (DM2) ?? uma doen??a metab??lica caracterizada por hiperglicemia como resultado de resist??ncia insul??nica e posterior fal??ncia das c??lulas beta.Este estudo avalia os efeitos do taijiqigong, uma sequ??ncia de qigong, sobre a qualidade de vida, controle agudo da glicemia, controle glic??mico e controle lip??mico de pacientes com DM2. M??todos: Ensaio cl??nico randomizado. Houve um grupo experimental (n = 11), que praticou o taijiqigong por tr??s meses, numa frequ??ncia de uma vez por semana, por 40 minutos di??rios, enquanto um grupo controle (n = 13), n??o submetido a qualquer tipo de interven????o, manteve o tratamento medicamentoso. Al??m das an??lises cl??nicas de glicemia em jejum, hemoglobina glicada (HbA1c) e lip??dios (triglic??rides, colesterol total e fra????es: LDL, VLDL, HDL), os pacientes responderam ao question??rio de qualidade de vida Diabetes Qualityof Life Measure (DQOL). Nos dias de interven????o, os pacientes eram analisados quanto ?? glicemia capilar, antes e depois da pr??tica. Resultados: Em rela????o ?? qualidade de vida, no grupo experimental houve melhora dos escores de satisfa????o e preocupa????es sociais e vocacionais antes e ap??s a interven????o; tamb??m houve melhora do dom??nio satisfa????o na compara????o entre grupo experimental e controle. Em rela????o ?? avalia????o laboratorial, n??o foram encontradas diferen??as significativas na HbA1c, glicemia de jejum e perfil lip??mico,exceto uma piora no valor do HDL no grupo experimental ap??s a interven????o, em compara????o com o grupo controle. Considerando 12 sess??es de qigong, a varia????o da glicemia capilar no grupo experimental, ap??s a realiza????o da pr??tica, teve melhores valores quando comparados com a varia????o no repouso. Conclus??es: O qigong foi eficaz em melhorar a qualidade de vida e favorecer o controle agudo da glicemia dos pacientes estudados. Houve diminui????o da glicemia capilar ao longo das semanas de interven????o. N??o foram observados efeitos positivos sobre o controle lip??mico nos pacientes portadores de DM2.

Universidade Federal da Bahia, Instituto de Ci??ncias da Sa??de

Advisors/Committee Members: Alves, Cr??sio de Arag??o Dantas.

▼ 

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS ([email protected]) on 2016-10-10T17:48:51Z No. of bitstreams: 1 TES_MANOEL_ANTONIO_DA_SILVA_RIBEIRO_PARCIAL.pdf: 688919 bytes, checksum: 8a56a70e578bd3446bdbd3b5c916e884 (MD5)

Made available in DSpace on 2016-10-10T17:48:51Z (GMT). No. of bitstreams: 1 TES_MANOEL_ANTONIO_DA_SILVA_RIBEIRO_PARCIAL.pdf: 688919 bytes, checksum: 8a56a70e578bd3446bdbd3b5c916e884 (MD5) Previous issue date: 2016-07-08

BACKGROUND: The stable microbubbles test on the gastric aspirate has been used for the diagnosis of respiratory distress syndrome of the newborn. However, its use in the preterm newborn oral aspirate was not determined. OBJECTIVE: To evaluate the performance of the stable microbubbles test done on oral aspirate from preterm newborns to predict of respiratory distress syndrome. METHOD: In the study were included infants with gestational age < 34 weeks. Oral secretion sample was obtained immediately after birth and gastric secretion was collected within 30 minutes of life. The samples were frozen and tested within 72 hours. RESULTS: The sample was composed of paired secretion of 70 newborns. The median (interquartile range) of the stable microbubbles count in the oral samples of infants with respiratory distress syndrome was significantly lower than those who did not develop or had respiratory symptoms from other causes: 12 (8 - 22) versus 100 (48 - 230) versus 70 (44 - 208) (p <0.01). The correlation between microbubble count in gastric and bucal aspirates was 0.88 (95%CI: 0,72 ? 0,93; p <0.01). Taking a cut-off point of 15 microbubbles/mm2, the sensitivity of test was 95.4%, the specificity 66.7%, and the agreement of the oral fluid with the gastric fluid was 0.76. CONCLUSION: The study suggests that the stable microbubbles test in gastric aspirate made at birth is a reliable alternative to the gastric fluid in the prediction of respiratory distress syndrome of the newborn.

INTRODU??O: O teste das microbolhas est?veis no aspirado g?strico tem sido utilizado para o diagn?stico de s?ndrome do desconforto respirat?rio do rec?m-nascido. Entretanto, a sua utiliza??o no fluido bucal em rec?m-nascidos pr?-termo ainda n?o foi avaliada. OBJETIVO: Avaliar o desempenho do teste das microbolhas est?veis no aspirado bucal de neonatos pr?-termo para a predi??o da s?ndrome do desconforto respirat?rio. M?TODO: Foram inclu?dos no estudo, rec?m-nascidos com menos de 34 semanas de idade gestacional. A secre??o bucal foi obtida imediatamente ap?s o nascimento e a secre??o g?strica at? 30 minutos de vida. As amostras foram congeladas e testadas em at? 72 horas. RESULTADOS: A amostra foi constitu?da de secre??o pareada de 70 rec?m-nascidos. A mediana (amplitude interquartil) da contagem das microbolhas est?veis no fluido bucal dos rec?m-nascidos com s?ndrome do desconforto respirat?rio foi significativamente menor do que os que n?o desenvolveram ou dos tiveram sintomas respirat?rios por causas indeterminadas: 12 (8-22) versus 100 (48 - 230) versus 70 (44 - 208) (p<0,01),…

Advisors/Committee Members: Fiori, Humberto Holmer, Fiori, Renato Machado.

▼ 

Orientador: Prof. Dr. Michael Mannich

Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Tecnologia, Programa de Pós-Graduação em Engenharia Ambiental. Defesa : Curitiba, 15/05/2019

Inclui referências: p. 94-101

Resumo: O conhecimento da temperatura da água e como se dá a dinâmica térmica é importante para se obter um diagnóstico inicial da qualidade da água em rios, visto que a temperatura afeta propriedades físicas, químicas e biológicas. Apesar da importância desta variável, a mesma não é medida com frequência em rios no Brasil. Deste modo, o desenvolvimento de modelos para estimar a temperatura da água em rios utilizando dados meteorológicos é uma forma de suprir a ausência de medição desse parâmetro. Dentre os modelos utilizados, há modelos que são baseados na equação do balanço de calor e modelos que procuram correlacionar a temperatura da água com outras variáveis, como temperatura do ar e radiação solar. À vista disso, avalia-se a dinâmica térmica em três rios da região metropolitana de Curitiba - os rios Verde, Passaúna e São João - explorando-se formas de estimativa da temperatura da água a partir de dados meteorológicos. O comportamento da temperatura da água foi avaliado em diferentes escalas temporais. Para a escala horária, a taxa de variação da temperatura é menor que 0,5°C/h, e as médias horárias variam cerca de 1,0°C em relação à media diária, e dessa forma a média diária não despreza variações significativas da escala horária. Para a escala diária, observou-se que a temperatura da água segue as variações da temperatura do ar, mesmo que em escala menor, havendo então correlação entre elas. Foram ajustadas regressões lineares e não lineares para estimar a temperatura da água, utilizando a temperatura do ar e a temperatura de equilíbrio - a temperatura que a água precisaria atingir para que a soma dos fluxos de calor seja igual a zero. Dentre essas duas temperaturas utilizadas, a que gerou o modelo com as melhores estimativas foi a temperatura do ar, sendo utilizada média móvel da mesma nas regressões com a temperatura da água, em que os valores dos coeficientes de Nash- Sutcliffe (NS) e Raiz do Erro Quadrático Médio (REQM) (respectivamente) foram de 0,979 e 0,388°C para o rio Verde; 0,968 e 0,474°C para o rio Passaúna e 0,709 e 1,460°C para o rio São João, utilizando a regressão não linear. Para a escala semanal, a regressão não linear utilizando a temperatura do ar foi a que obteve o melhor ajuste para os três rios, com valores de NS e REQM de 0,978 e 0,383°C para o rio Verde; 0,967 e 0,427°C para o rio Passaúna e 0,741 e 1,283°C para o rio São João. Dentre os três rios, o São João foi o que obteve os piores ajustes, e esse comportamento pode ser causado pela contribuição de outro fator para o regime térmico, como escoamento subterrâneo. Entre a regressão linear e a não linear, a não linear foi a que obteve os melhores ajustes para os três rios. Ao ser comparado com um modelo determinístico e com a equação utilizada pelo SWAT, o ajuste feito pela regressão não linear foi o que…

Advisors/Committee Members: Universidade Federal do Paraná. Setor de Tecnologia. Programa de Pós-Graduação em Engenharia Ambiental, Mannich, Michael, 1984-.

▼ 

Submitted by LIVIA FREITAS ([email protected]) on 2013-10-07T17:17:06Z No. of bitstreams: 1 Dissertacao maisa.pdf: 4950213 bytes, checksum: 0ec68dffbc2559ab3f395cb4b2a5f522 (MD5)

Approved for entry into archive by LIVIA FREITAS([email protected]) on 2013-10-08T13:02:09Z (GMT) No. of bitstreams: 1 Dissertacao maisa.pdf: 4950213 bytes, checksum: 0ec68dffbc2559ab3f395cb4b2a5f522 (MD5)

Made available in DSpace on 2013-10-08T13:02:09Z (GMT). No. of bitstreams: 1 Dissertacao maisa.pdf: 4950213 bytes, checksum: 0ec68dffbc2559ab3f395cb4b2a5f522 (MD5)

Estudos cient??ficos tem apontado o aumento das emiss??es antropog??nicas de gases de efeito estufa (GEE) como um dos principais respons??veis pelo aquecimento global e mudan??as clim??ticas, os quais j?? s??o observados pelo Homem. Neste contexto, a tecnologia de Captura e Armazenamento do Di??xido de Carbono em Reservat??rios Geol??gicos (CCGS) tem sido destaque como uma das principais solu????es no combate a este problema. Devido ??s suas caracter??sticas e da necessidade de garantir um armazenamento de CO2 seguro, a an??lise de risco apresenta-se como uma ferramenta para identificar os principais cen??rios de risco e o conhecimento destes pode oferecer maior confian??a e credibilidade aos projetos de CCGS. Assim, visando contribuir com uma ferramenta que possibilite uma melhor compreens??o dos riscos de fuga de CO2 no armazenamento, esse trabalho tem como objetivo apresentar uma metodologia qualitativa para avalia????o de riscos do CO2 armazenado apoiada em metodologias dispon??veis na literatura. A an??lise comparativa entre as principais metodologias existentes e os aspectos que influenciam na estimativa de risco balizou o desenvolvimento da Metodologia AR-CO2, sendo identificadas as caracter??sticas e lacunas mais significativas das metodologias estudadas. A metodologia AR-CO2 foi aplicada em um estudo de caso ilustrativo do Campo Fazenda Mamoeiro, situado na Bacia do Rec??ncavo. A partir do estudo de caso realizado identificou-se que a regi??o apresenta risco predominantemente baixo. Com a aplica????o da Metodologia AR-CO2 conclui-se que a metodologia proposta apresenta a vantagem de ser flex??vel, robusta, abrangente, sistem??tica,de baixo custo e de f??cil uso para estimativa qualitativa do risco.

Salvador

Advisors/Committee Members: Andrade, Jos?? C??lio Silveira, Rocha, Paulo S??rgio de Mello Vieira.

▼ 

Exportado OPUS

Made available in DSpace on 2019-08-12T11:57:59Z (GMT). No. of bitstreams: 1 ytalo_mota___2016___tese_de_doutorado_final__1_.pdf: 2761453 bytes, checksum: 6ea53d59706c2baab9c19c2c6c2c59a7 (MD5) Previous issue date: 7

Na literatura específica voltada para o treinamento pliométrico (TP), bem como na sua prática, verifica-se a utilização de distintos materiais como alternativa para dinamizar os exercícios. Esse fato pode influenciar os demais componentes da carga de treinamento. Destaca-se dentre os materiais utilizados as barreiras, similares àquelas utilizadas no atletismo. No entanto, existe uma nítida escassez quanto a uma melhor caracterização do uso desse implemento em situações de treinamento e de avaliação. Os objetivos do presente estudo foram: criar um protocolo que possa determinar a altura individual máxima de transposição de barreira para o TP; verificar a confiabilidade e as evidências da validade de construto; verificar a individualização de barreiras pela maior altura do ressalto vertical e pelo maior índice de força reativa. Para tanto, o estudo foi desenvolvido em duas etapas, a saber: etapa I e II. A etapa I correspondeu ao estudo piloto que contou com 08 estudantes universitários fisicamente ativos. Posteriormente, foi desenvolvida a etapa II, que constou de dois grupos distintos: Grupo 1 (G1) composto por 20 atletas, sendo 10 de basquetebol e 10 de Taekwondo e grupo 2 (G2) composto por 15 estudantes universitários fisicamente ativos. Todos os indivíduos foram submetidos a quatro dias de coleta, sendo dois dias utilizados para familiarização e dois para teste e reteste. Esse desenho experimental foi utilizado nas duas etapas. As variáveis analisadas foram: altura máxima de barreira; altura máxima do ressalto vertical; Índice de Força Reativa (IFR); pico de força; média da taxa de produção de força; impulso e pré-ativação dos músculos vasto medial e vasto lateral. Foi utilizado o teste t de medidas repetidas para verificação da familiarização dos sujeitos com o protocolo proposto nas duas etapas de estudo. Foi utilizado o coeficiente de correlação intraclasse (CCI) para verificação da confiabilidade relativa e o Erro Padrão de Medida (EPM) para verificação da confiabilidade absoluta das medidas, também nas duas etapas. Como forma de utilizar o método da diferença de grupos conhecidos na verificação de evidências de validade de construto, foi utilizado na etapa II o teste t de medidas independentes. Quando a variável não apresentou os pressupostos de normalidade (Shapiro Wilk) e homocedasticidade (Levene´s test), foi utilizado o método de transformação logarítimica. Quando comparado os dois grupos, a análise, por meio do teste t de medidas independentes, apresentou resultado com significado estatístico (p 0,05) para todas as variáveis de estudo, com vantagem para o G2. A ampla maioria das variáveis apresentou alta confiabilidade (0,80 CCI < 0,99) tanto na etapa I como também na etapa II. Na etapa II constatou-se, nitidamente, que os atletas atingiram maiores índices de…

Advisors/Committee Members: Leszek Szmuchrowski, Reginaldo Goncalves, Mauro Heleno Chagas, Gislane Ferreira de Melo, João Paulo Borin.

▼ 

Made available in DSpace on 2015-04-14T13:30:34Z (GMT). No. of bitstreams: 1 459061.pdf: 2282963 bytes, checksum: c9b1fec421065d44d34540a0b1217b0a (MD5) Previous issue date: 2014-02-24

The aim of this study was to evaluate the bond strength of Scotchbond Universal to dentin in both total-etch and self-etch applications after storage in water for 24 h and 6 months. The occlusal surface of 24 third molars was removed to obtain flat dentin surfaces, and the teeth were divided into four groups (n=6/grupo): G1 total-etch application of Scotchbond Universal; G2 self-etch application of Scotchbond Universal; G3 Scotchbond Multi Purpose (total-etch application control); G4 Clearfil SE Bond (self-etch application control). Following the adhesive application, a 6 mm height block of composite resin Z250 was built on the adhesive area. After storage in distilled water at 37?C for 24 hours, the tooth/resin sets were cut parallel to the long axis of the tooth, in the x and y directions, with a section of about 0.8 mm2. Forty specimens were obtained for each group; 20 specimens were immediately submitted to microtensile bond strength test, and the others after storage in distilled water at 37o C for 6 months. The microtensile bond strength test was performed in an universal testing machine (EMIC-DL 2000) at 0.5 mm/min crosshead speed. The failures were observed in scanning electron microscopy (SEM). Additionally, two sets of each group were sectioned mesio-distal in the center of their crown with a diamond blade. The surfaces were polished by wet sanding with 400, 600 and 1200-grit silicon carbide abrasive paper, followed by polishing with 6, 3, 1 and ? m diamond paste. The samples were demineralized, deproteinized, dried, metalized and observed on a scanning electron microscope at 1.500x. The bond strength means (MPa) obtained were the following: 24 h G1 (39.37); G2 (31.02); G3 (35.09); G4 (35.84); 6 months G1 (36.99); G2 (40.58); G3 (32.44); G4 (41.75). According to two-way ANOVA, there was no significance for adhesive system (p=0,110) and storage time (0,108), but the interaction of adhesive system and storage time was significant (p=0.015). At 24 h, there was no statistical difference in bond strength between the adhesive systems (p>0,05). At 6 months, there was statistical difference between the adhesive systems (p<0.05). Clearfil SE Bond obtained the higher bond strength mean, not differing statistically from self-etch application of Scotchbond Universal. Total-etch application of Scotchbond Universal did not differ statistically from Scotchbond Multi Purpose. Most of failures were mixed in both periods of evaluation. The SEM images of the adhesive interface of Scotchbond Universal total-etch application and Scotchbond Multi Purpose showed thicker hybrid layers and more resin tags in comparison with Scotchbond Universal self-etch application and Clearfil SE Bond. It was concluded that the simplification of Scotchbond Universal in one bottle did not decrease the bond strength of this adhesive to dentin…

Advisors/Committee Members: Spohr, Ana Maria.

▼ 

Submitted by Nadir Basilio ([email protected]) on 2018-04-13T18:14:33Z No. of bitstreams: 1 Cleverton Santos Reche.pdf: 2749690 bytes, checksum: 69d6333ae48031e32c4331a9736c6346 (MD5)

Made available in DSpace on 2018-04-13T18:14:33Z (GMT). No. of bitstreams: 1 Cleverton Santos Reche.pdf: 2749690 bytes, checksum: 69d6333ae48031e32c4331a9736c6346 (MD5) Previous issue date: 2017-06-28

Currently, large metropolises seek to improve the quality of life of their population in aspects of urban mobility. Ethanol is a renewable biofuel, of great relevance to Brazil, because it is a clean fuel. Increased consumption compared to other fossil fuels could have a positive impact on reducing greenhouse gas emissions. The research question that guided the study was: what scenarios for ethanol produced in Brazil in 2030? For this, this work adopted the format of independent and sequential studies, totaling 3 studies. Study I was carried out, based on a search in the Web of Science database, with the objective of verifying the construction of the knowledge of the theme "Prospective Scenarios", through the identification of the main publications and authors, based on an analysis Bibliometric. We found 232 articles, which were ranked in descending order of the most cited author for the least cited. This study was developed from an exploratory factorial analysis and five factors were identified. Subsequently, study II was developed with the objective of reviewing and comparing the methodologies of prospective scenarios to identify the most used methods and to compare the methods. The articles were separated into groups of relevant relevance for the theme to later carry out a comparative analysis, providing a view of the practical aspects of scenario planning, such as the selection and the appropriate number of scenarios for validation. Finally, study III was elaborated with the objective of proposing scenarios for the ethanol produced in Brazil in 2030. The data collection was done by sending a questionnaire to specialists on the subject, via the internet, following the guidelines of the Delphi method. Three prospective scenarios were elaborated: a probable scenario, an exploratory scenario and a normative scenario. The scenarios were based on the context of the sugarcane sector, through the uncertainties, opportunities and threats and the analysis of complex environments presented in the study.

Atualmente as grandes metr??poles buscam melhorar a qualidade de vida de sua popula????o em aspectos a mobilidade urbana. O etanol ?? um biocombust??vel renov??vel, de grande relev??ncia para o Brasil, porque ?? um combust??vel limpo. O aumento do seu consumo frente a outros combust??veis f??sseis poder?? ter um impacto positivo na redu????o de emiss??es de gases de efeito estufa. A pergunta de pesquisa que norteou o estudo foi: quais seriam os cen??rios para o etanol produzido no Brasil em 2030? Para tanto, este trabalho adotou o formato de estudos independentes e sequenciais, somando ao todo, 3 estudos. O estudo I foi realizado, a…

Advisors/Committee Members: Ramos, Heidy Rodriguez, Ramos, Heidy Rodriguez, Ruiz, Mauro Silva, Carvalho, Daniel Estima de.