Syngas fermentation by mesophilic anaerobic mixed cultures was studied, regarding the effect of initial medium pH (5.8, 6.9 and 7.6) and total initial syngas pressure (1.0, 1.75 and 2.5 atm) in methane production and other alternative products (acids and alcohols). Complete consumption of CO and H2 was achieved in less than 72 h at 1.0 atm syngas, and within 240 h for higher syngas pressures. The highest specif...
2009
2009
Descreve-se a técnica de dupla-marcação em imunoistoquímica aplicada a tumores mamários em cadelas incluídos em parafina. Foram utilizados dois tipos de neoplasia em que ocorre envolvimento de células epiteliais, mioepiteliais e mesenquimais, tumor misto benigno e carcinossarcoma. Foram testados dois anticorpos, AE1/AE3 para identificação de tecido epitelial e S100 como marcador de células mioepiteliais. A dupl...
Neonatal handling has long-lasting effects on behavior and stress reactivity. The purpose of the present study was to investigate the effect of neonatal handling on the number of dopaminergic neurons in the hypothalamic nuclei of adult male rats as part of a series of studies that could explain the long-lasting effects of neonatal stimulation. Two groups of Wistar rats were studied: nonhandled (pups were left u...
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