10 research outputs found

    Clinical changes in cats submitted to experimental hyperthyroidism

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    A relação do hipertireoidismo experimental com parâmetros clínicos foi avaliada em gatos machos e fêmeas, intactos e mantidos em estado hipertireóideo por um período de 42 dias. Os parâmetros estudados foram consumo diário de água e ração, débito urinário, o volume fecal, peso corporal, temperatura corporal, coloração de membranas mucosas, palpação de linfonodos superficiais, palpação da glândula tireóide, pulso femoral, auscultação cardíaca e respiratória, freqüência cardíaca e respiratória e palpação abdominal. Correlacionou-se as variáveis com os níveis de T3 total, T4 livre e total. O excesso dos hormônios tireoidianos acompanhou aumento da freqüência cardíaca, polifagia, polidipsia, perda de peso e aumento do volume fecal nos gatos estudados.The interrelation between experimental hyperthyroidism andclinical changes was studied in adult intact cats kept under hyperthyroidic state for 42 days. Clinical aspects evaluated were dairy food and water intake, urine output and fecal volume, body weight, temperature, mucous membranes colour, palpable lymphnodes, thyroid gland palpation, abdominal palpation, and cardiac and respiratory frequencies. These characteristics were correlated with free and total T4 and total T3 serum concentrations. Excessive circulant thyroid hormone levels resulted in increased cardiac frequency, polyuria, polidipsia, weight loss and increased fecal volume in the studied cats

    Short-term evaluation of non-absorbable microgranular hydroxyapatite infiltration in the guinea pig subepidermal abdominal region

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    Non-absorbable microgranular hydroxyapatite was infiltrated into the subepidermal abdominal region of guinea pigs in order to assess the possibility of using this material to correct deficiencies in orbital volume. Microgranular hydroxyapatite (2.0 ml) was subepidermally infiltrated into the abdominal region of 20 guinea pigs. The animals were divided into four experimental groups of 5 animals each, which were killed 7 (G1), 15 (G2), 30 (G3) and 60 (G4) days after infiltration. The area and the largest and smallest diameters of the nodules formed by infiltration were evaluated at the site of infiltration and histological examination was performed. The mean granuloma area was similar in all groups. Histopathological examination showed that the material remained isolated from surrounding tissues by a pseudocapsule that became denser throughout the experiment. A host reaction started with young fibroblastic tissue that evolved to dense tissue until cartilaginous tissue was formed in G4, progressively advancing towards the center of the granuloma from G1 to G4. Non-absorbable microgranular hydroxyapatite is an inert material that was well tolerated by the animals studied, with maintenance of the infiltrated volume, and may perhaps be useful to fill anophthalmic cavities

    Avaliação de modelo matemático para estimar a radiação solar incidente sobre superfícies com diferentes exposições e declividades Evaluation of a model used for estimating income solar radiation in surfaces with different expositions and declivities

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    Este trabalho teve por objetivo avaliar modelo matemático para estimar a radiação solar global diária sobre superfícies com diferentes exposições e declividades, no período de março de 2002 a março de 2003. A pesquisa foi desenvolvida em uma estrutura denominada "Bacia Hidrográfica Experimental" do Departamento de Engenharia Rural da UNESP, Câmpus de Jaboticabal - SP. Nessa estrutura, foram utilizadas superfícies caracterizadas como H, 10N, 10S, 20N, 20S, 10E, 10W, 20E e 20W. O sensor utilizado para medir a radiação solar global incidente nas superfícies estudadas foi um piranômetro da marca Kipp & Zonnen, modelo CM3. Para calcular a radiação solar incidente nas superfícies estudadas, foi utilizado o modelo de Kondratyev. As análises dos resultados foram feitas para o período diário, utilizando-se de análise de regressão e considerando o modelo linear (y = ax + b), na qual a variável dependente foi a radiação global medida (K<FONT FACE=Symbol>&macr;</FONT>M) e a radiação global calculada (K<FONT FACE=Symbol>&macr;</FONT>C) foi a variável independente. Os resultados deste estudo mostram que o modelo apresentou bons resultados para estimar a radiação nas superfícies H, 10N, 10S, 10E, 10W, 20E e 20W. Utilizando-se de dados de dias com céu límpido, foram obtidos os seguintes resultados: no inverno, o modelo foi preciso para estimar a radiação solar na superfície 20N, e apresentou resultados aceitáveis para estimar a radiação solar na superfície 20S.<br>This research evaluated a model used for estimating income solar radiation in surfaces with different expositions and declivities. The research was developed in one structure denominated "Experimental Hidrografic Basin" of the Rural Engineering Department - UNESP, Sao Paulo State University, Brazil. In this structure was utilized surfaces characterized as H, 10N, 10S, 20N, 20S, 10E, 10W, 20E and 20W. The sensor used for obtaining income solar radiation in surfaces was a Kipp & Zonnen Piranometer model CM3. The methodology of Kondratyev was used to calculate the income solar radiation on surfaces. Evaluation of the results were made for the daily period using regression analyze and considering the linear model (y = ax + b), which the dependent variable was the global radiation measured (K<FONT FACE=Symbol>&macr;</FONT>M) and the global radiation calculated (K<FONT FACE=Symbol>&macr;</FONT>C) was the independent variable. The model showed good results to estimate the radiation on the surfaces H, 10N, 10S, 10E, 10W, 20E e 20W. Using data of sunny days were obtained the following results: in the winter, the model was exact to estimate the solar radiation on the surface 20N, and it showed acceptable results to estimate the solar radiation on the surface 20S

    Elective Cancer Surgery in COVID-19–Free Surgical Pathways During the SARS-CoV-2 Pandemic: An International, Multicenter, Comparative Cohort Study

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