163 resultados para Transmissão vetorial


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Purpose: To evaluate and correlate in the rabbit the possible changes caused by mitomycin C under the scleral flap in the ciliary epithelium with transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Methods: The eyes of 32 albino rabbits were studied and divided in 4 experimental groups. The right eye (RE) was intended for the experimental groups and the left eye (LE) for the controls. Group I (G1) was formed by 8 eyes that received 0,5 mg/ml of mitomycin C under the scleral flap and were examined after 15 days. Group II (G2) differed from G1 only in the time of the exam, after 30 days. Group III (G3) was formed by 8 eyes that received 0,2 mg/ml of mitomycin C under the scleral flap and were examined after 15 days. Group IV (G4) differed from group 3 just in the time of the exam, after 30 days. In each eye the internal ciliary epithelium were examined with TEM. Results: The following changes in the internal ciliary epithelium were observed in groups G2, G3, and G4 with TEM: discontinuous and irregular basement membrane, more irregular and electron-dense nucleous, enlargement among interdigitation, edematous mitochondria and myelin figures. These alterations were not found in all the animals of the groups. Group G 1 did not present alterations. Roughness in groups G 1, G2, G3 and G4 were observed with SEM. In groups G 1 and G2 continuity solutions were also observed. Conclusion: Mitomycin C in 0,2 mg/ml and 0,5 mg/ml concentrations caused changes in the internal ciliary epithelium 15 and 30 days after, with TEM and SEM. There was no correlation between dosage, time and with TEM and SEM.

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Objective Determining conditions regarding possible zoonosis transmission risk based on Ilha Solteira-São Paulo citizens' habits aimed at establishing concrete recommendations for the corresponding local authorities to reduce some risk factors. Methods100 focalized interviews were held on Ilha Solteira's urban perimeter during April 2008. The people interviewed were adults who lived or worked in houses in the study area. Results This research found a significant number of cat and/or dog owners who allowed their pets to stay in internal areas of their houses. They did not define a specific place for animals to defecate and/or urinate or did not arrange appropriate final disposal of such waste. Conclusion Local authorities must make greater efforts at educating Ilha Solteira pets' owners and providing them with information and encouraging greater citizen commitment and awareness to improve habits related to caring for pets/animal sand reducing zoonosis transmission risk factors.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Ciências Sociais - FFC

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Pós-graduação em Engenharia Elétrica - FEIS

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)