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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Estudo experimental dos efeitos de exercícios padronizados, aeróbios e anaeróbios em portadores de diabetes tipo II, mediante avaliações antropométricas, da glicemia e termográficas / Experimental study of the effects of pattern exercises, aerobic and anaerobic, in people with diabetes Mellitus type II, through anthropometric evaluations of glicemic index and termography

Damiano, Luiz Eduardo Genovez 23 February 2007 (has links)
O diabetes Mellitus tipo II tem sido preocupação corrente nos dias atuais, pois, independente dos fatores desencadeados desta doença e de até certo ponto, algumas controvérsias sobre os mesmos, quaisquer investigações que possam contribuir para a melhoria de vida dos portadores do diabetes Mellitus tipo II, são altamente necessários. Destaque-se também que o levantamento estatístico e social da incidência dessa doença, tem demonstrado recentemente, que ocorrências tem incidido em indivíduos cada vez mais jovens contrariando a idéia de eventuais relações com idade avançada dos portadores. Durante os anos 90 estimava-se a existência de aproximadamente 175 a 200 milhões de diabéticos tipo II, em todo o mundo, por prospecção estima-se que em 2025, serão 300 milhões, os portadores da doença, sendo que 90 a 95% deles corresponderão ao tipo II. Esses fatos conduzem a presente pesquisa visto que, o exercício associado a medicamentos tem sido os elementos responsáveis pela melhoria de vida dos portadores de diabetes tipo II. Em vista disso foi proposto o estudo de 2 tipos de exercícios padronizados e avaliados mediante dosagem de glicose e teletermografia periférica. O nível glicêmico avaliado antes e após os 2 tipos de exercícios, (aeróbio e anaeróbio) demonstrou-se mais sensível aos exercícios anaeróbios propostos nesta investigação. Exercícios aeróbios (GDEA) - média da glicemia inicial 127,40 mg/dl - média da glicemia final 97,92 mg/dl - desvio padrão glicemia inicial 97,72 mg/dl, glicemia final 69,98 mg/dl. Exercícios anaeróbios (GDEAn) - média da glicemia inicial 132,62 mg/dl - média da glicemia final 91,54 mg/dl - desvio padrão glicemia inicial 90,84 mg/dl, glicemia final 61,11 mg/dl. A teletermografia periférica avaliada mediante a circulação do tegumento das plantas dos pés demonstrou-se igualmente favorável aos portadores dos diabetes tipo II submetidos aos exercícios anaeróbios. Exercícios aeróbios (GDEA) média da temperatura 28,09 graus Celsius - desvio padrão 1,14 graus Celsius.Exercícios anaeróbios (GDEAn) média da temperatura 29,67 graus Celsius - desvio padrão 1,13 graus Celsius. Procurou-se eventuais explicações para os resultados aqui obtidos, em vista dos quais os exercícios a serem praticados em portadores de diabetes Mellitus tipo II devem ser revistos. / Diabetes Mellitus type II investigations about quality of life improvement have been a concern nowadays, although there is some controversy about the cause of this disease. The incidence of this disease has been on younger people, what shows no direct relation with aging. During 90 decade it was estimated to exist 175 to 200 millions of people with diabetes type II around the world, it is estimated that in 2025 there will be 300 millions of diabetic people and 90 to 95% of these with the type II one. Those facts conduct the present research. Exercise associated to medicaments has improved the quality of life in people with diabetes type II. The present study investigated two different exercises and evaluated both with glucose dosage and periferical teletermography. Glicemic level was evaluated before and after both type of exercise (aerobic and anaerobic), and it was more sensitive to anaerobic exercises proposed. Aerobic exercises (GDEA) - mean initial glicemic index 127,40 mg/dl - mean final glicemic index 97,92 mg/dl - initial glicemic standard deviation 97,72 mg/dl - final glicemic standard deviation - 69,98 mg/dl. Anaerobic exercises (GDEAn) - mean initial glicemic index 132,62 mg/dl - mean final glicemic index 91,54 mg/dl - initial glicemic standard deviation 90,84 mg/dl - final glicemic standard deviation - 61,11 mg/dl. Peripherical teletermography evaluated trough feet plantar circulation demonstrated to be equally suitable to people with diabetes type II submitted to GDEA, mean temperature 28,09 °C - standard deviation 1,14°C, and to GDAn, mean temperature 29,67°C - standard deviation 1,13°C. Explanation was searched for presented results, those results demonstrated that exercise practicing must be reviewed if practiced by people with diabetes mellitus type II.
2

Estudo experimental dos efeitos de exercícios padronizados, aeróbios e anaeróbios em portadores de diabetes tipo II, mediante avaliações antropométricas, da glicemia e termográficas / Experimental study of the effects of pattern exercises, aerobic and anaerobic, in people with diabetes Mellitus type II, through anthropometric evaluations of glicemic index and termography

Luiz Eduardo Genovez Damiano 23 February 2007 (has links)
O diabetes Mellitus tipo II tem sido preocupação corrente nos dias atuais, pois, independente dos fatores desencadeados desta doença e de até certo ponto, algumas controvérsias sobre os mesmos, quaisquer investigações que possam contribuir para a melhoria de vida dos portadores do diabetes Mellitus tipo II, são altamente necessários. Destaque-se também que o levantamento estatístico e social da incidência dessa doença, tem demonstrado recentemente, que ocorrências tem incidido em indivíduos cada vez mais jovens contrariando a idéia de eventuais relações com idade avançada dos portadores. Durante os anos 90 estimava-se a existência de aproximadamente 175 a 200 milhões de diabéticos tipo II, em todo o mundo, por prospecção estima-se que em 2025, serão 300 milhões, os portadores da doença, sendo que 90 a 95% deles corresponderão ao tipo II. Esses fatos conduzem a presente pesquisa visto que, o exercício associado a medicamentos tem sido os elementos responsáveis pela melhoria de vida dos portadores de diabetes tipo II. Em vista disso foi proposto o estudo de 2 tipos de exercícios padronizados e avaliados mediante dosagem de glicose e teletermografia periférica. O nível glicêmico avaliado antes e após os 2 tipos de exercícios, (aeróbio e anaeróbio) demonstrou-se mais sensível aos exercícios anaeróbios propostos nesta investigação. Exercícios aeróbios (GDEA) - média da glicemia inicial 127,40 mg/dl - média da glicemia final 97,92 mg/dl - desvio padrão glicemia inicial 97,72 mg/dl, glicemia final 69,98 mg/dl. Exercícios anaeróbios (GDEAn) - média da glicemia inicial 132,62 mg/dl - média da glicemia final 91,54 mg/dl - desvio padrão glicemia inicial 90,84 mg/dl, glicemia final 61,11 mg/dl. A teletermografia periférica avaliada mediante a circulação do tegumento das plantas dos pés demonstrou-se igualmente favorável aos portadores dos diabetes tipo II submetidos aos exercícios anaeróbios. Exercícios aeróbios (GDEA) média da temperatura 28,09 graus Celsius - desvio padrão 1,14 graus Celsius.Exercícios anaeróbios (GDEAn) média da temperatura 29,67 graus Celsius - desvio padrão 1,13 graus Celsius. Procurou-se eventuais explicações para os resultados aqui obtidos, em vista dos quais os exercícios a serem praticados em portadores de diabetes Mellitus tipo II devem ser revistos. / Diabetes Mellitus type II investigations about quality of life improvement have been a concern nowadays, although there is some controversy about the cause of this disease. The incidence of this disease has been on younger people, what shows no direct relation with aging. During 90 decade it was estimated to exist 175 to 200 millions of people with diabetes type II around the world, it is estimated that in 2025 there will be 300 millions of diabetic people and 90 to 95% of these with the type II one. Those facts conduct the present research. Exercise associated to medicaments has improved the quality of life in people with diabetes type II. The present study investigated two different exercises and evaluated both with glucose dosage and periferical teletermography. Glicemic level was evaluated before and after both type of exercise (aerobic and anaerobic), and it was more sensitive to anaerobic exercises proposed. Aerobic exercises (GDEA) - mean initial glicemic index 127,40 mg/dl - mean final glicemic index 97,92 mg/dl - initial glicemic standard deviation 97,72 mg/dl - final glicemic standard deviation - 69,98 mg/dl. Anaerobic exercises (GDEAn) - mean initial glicemic index 132,62 mg/dl - mean final glicemic index 91,54 mg/dl - initial glicemic standard deviation 90,84 mg/dl - final glicemic standard deviation - 61,11 mg/dl. Peripherical teletermography evaluated trough feet plantar circulation demonstrated to be equally suitable to people with diabetes type II submitted to GDEA, mean temperature 28,09 °C - standard deviation 1,14°C, and to GDAn, mean temperature 29,67°C - standard deviation 1,13°C. Explanation was searched for presented results, those results demonstrated that exercise practicing must be reviewed if practiced by people with diabetes mellitus type II.
3

Caractérisation thermique de matériaux anisotropes à hautes températures / Thermal characterization of anisotropic materials at high temperatures

Souhar, Youssef 20 May 2011 (has links)
Le sujet de l'étude concerne la caractérisation thermique à hautes températures de matériaux anisotropes dont la diffusivité thermique varie selon la direction considérée. Cette mesure de la diffusivité est permise par l'observation des variations transitoires de température d'un matériau soumis à un flux de chaleur de type impulsionnel. L’excitation provient d’un Laser et la mesure de température est réalisée par thermographie infrarouge sur la face opposée à l'excitation thermique. Le champ de température ainsi obtenu permet de déterminer les trois diffusivités du matériau selon ses directions d'anisotropie. En effet, grâce à des transformations intégrales du champ de température, il est possible d'obtenir un modèle théorique décrivant les variations de température au sein du matériau. Les estimations des diffusivités s'obtiennent alors par la minimisation de la somme des écarts quadratiques entre les modèles théoriques et leurs équivalents expérimentaux. Il s'agit de problèmes d'optimisation non linéaire et les estimations sont réalisées dans le domaine des fréquences spatiales et dans le temps grâce à une inversion numérique de Laplace. Basée sur des dispositifs optiques, cette méthode est non intrusive et grâce aux modèles analytiques les mesures sont rapides et précises même à haute température. La méthode ainsi que le nouveau banc expérimental mis en place rendent possible la mesure des trois diffusivités en une unique expérience pour des excitations de forme quelconque en espace et non nécessairement Dirac en temps / The study concerns the thermal characterization at high temperatures of anisotropic materials whose thermal diffusivity varies according to the direction considered. This measurement of diffusivity is allowed by the observation of the transient variations of temperature of a material subjected to a heat pulse source. The excitation is performed by a Laser and the temperature measurement is carried out by infrared thermography on the opposite face of the thermal excitation. The temperature field thus obtained makes it possible to determine the three diffusivities of the material according to its directions of anisotropy. Indeed, thanks to integral transforms of the temperature field, it is possible to obtain a theoretical model describing the temperature variations within the material. The estimates of diffusivities are then obtained by the minimization of the sum of squared residuals between the theoretical models and their experimental equivalents. These are problems of nonlinear optimization and the estimations are carried out in the spatial frequency domain and in time thanks to a numerical inversion of Laplace. Based on optical devices this method is non-intrusive and thanks to the use of analytical models the estimations are fast and accurate even at high temperatures. The method and the new experimental facility make it possible to estimate the three thermal diffusivities in a single experiment and this for excitations of any shape in space and not necessarily Dirac’s delta function in time

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