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In vitro fermentations of pure cellulose by mixed ruminal microorganisms were conducted under conditions in which pH declined within ranges similar to those observed in the rumen. At low cellulose concentrations (12.5 g/L), the first-order rate constants (k) of cellulose disappearance were successively lower at initial pH values of 6.86, 6.56, and 6.02, but(More)
INTRODUCTION Type 2 spinocerebellar ataxia is a hereditary degenerative disorder of the nervous system. Advances in molecular genetics have made it possible to carry out presymptomatic and prenatal studies. A programme to define the strategies and principles for doing this has been devised. OBJECTIVE To find the level of acceptance of prenatal diagnosis(More)
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