311 resultados para Envelhecimento térmico


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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O objetivo do presente trabalho foi adequar o teste de envelhecimento acelerado para avaliar a qualidade fisiológica de diásporos de Oenocarpus bacaba Mart. (bacaba). Inicialmente, os diásporos foram expostos às temperaturas de 41; 43 e 45 ºC, durante 3; 6; 12; 24; 36; 48 e 72 h, com cerca de 100% de umidade relativa do ar. Foram considerados dois critérios de germinação: emissão da primeira bainha igual ou superior a 1cm e plântula normal. o teste de germinação foi realizado com 6 repetições de 20 diásporos, em temperatura de 30 ºC e fotoperíodo de 12 h. Pelos resultados preliminares, observou-se que os lotes de diásporos de bacaba podem ser separados em níveis de vigor por meio do envelhecimento acelerado, em 43ºC e com cerca de 100% de umidade relativa do ar, por 48 h. os quatro lotes de diásporos foram então submetidos, num segundo experimento, a 43 ºC por 24; 48 e 72 h, sendo adotada como critério de germinação a emissão de primeira bainha. em 45 ºC, a porcentagem de germinação foi drasticamente reduzida após 12 h. Não houve diferenças significativas entre os critérios de germinação utilizados. Os lotes de diásporos foram separados em diferentes níveis de vigor após 48 e 72 h de exposição a 43 ºC. de acordo com os resultados obtidos, sugere-se o uso de primeira bainha como critério de germinação e período de envelhecimento de 48 h a 43 ºC, para a avaliação da qualidade fisiológica de diásporos de bacaba.

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This study aimed at quantifies the pain in dogs under dissociative anesthesia, across thermal and pressoric stimulus and quantify the reasonable period between two different opioids analgesics. In this study, 30 dogs were used and, divided into three groups of 10 animals each, in which the animals of GI received methotrimeprazine and midazolam put on the same syringe with ketamine. The animals of GII received the same treatment of GI but associated with butorphanol and finally the animals of GIII received the same treatment of GI but associated with buprenorphine. The routine parametric evaluations has been proceeded, although using the thermo algimetry measured in degrees C with the average of 52 degrees C and the pressoric algimetry in Kg. In the thermo algimetry, there has been significant difference in GI at the moments M0, M1, M4 and M5; in GII it was found at M0, M1, M5 and M6 and in GIII it was observed the significant at M0 and M1. It has also been shown in pressoric algimetry significant difference in GI at the moments M0, M2 and M3. Among GII it has observed significant difference at all moments and it has found at M0, M9 in GIII. Thus, it has observed significant differences between all groups; for such the M2 of GII smaller than the others; and M4, M5 of GIII bigger than GI and GII. In the assessment of all periods it was observed significant latent period bigger in GI, however, with reasonable period and short recovery in GII and GIII. In the order hand, the postural tonus recovery it was longer in GIII, followed by GII and finally GI. The used method for the measurement of algic stimulus was efficient, noticing a reasonable analgesic period of 3 hours for butorphanol and 6 hours for buprenorphine.

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Pós-graduação em Engenharia Mecânica - FEG

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Pós-graduação em Engenharia Elétrica - FEIS

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This study aimed at quantifies the pain in dogs under dissociative anesthesia, across thermal and pressoric stimulus and quantify the reasonable period between two different opioids analgesics. In this study, 30 dogs were used and, divided into three groups of 10 animals each, in which the animals of GI received methotrimeprazine and midazolam put on the same syringe with ketamine. The animals of GII received the same treatment of GI but associated with butorphanol and finally the animals of GIII received the same treatment of GI but associated with buprenorphine. The routine parametric evaluations has been proceeded, although using the thermo algimetry measured in degrees C with the average of 52 degrees C and the pressoric algimetry in Kg. In the thermo algimetry, there has been significant difference in GI at the moments M0, M1, M4 and M5; in GII it was found at M0, M1, M5 and M6 and in GIII it was observed the significant at M0 and M1. It has also been shown in pressoric algimetry significant difference in GI at the moments M0, M2 and M3. Among GII it has observed significant difference at all moments and it has found at M0, M9 in GIII. Thus, it has observed significant differences between all groups; for such the M2 of GII smaller than the others; and M4, M5 of GIII bigger than GI and GII. In the assessment of all periods it was observed significant latent period bigger in GI, however, with reasonable period and short recovery in GII and GIII. In the order hand, the postural tonus recovery it was longer in GIII, followed by GII and finally GI. The used method for the measurement of algic stimulus was efficient, noticing a reasonable analgesic period of 3 hours for butorphanol and 6 hours for buprenorphine.

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Pós-graduação em Engenharia Mecânica - FEG

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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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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)