Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 43861-43880 of 98940
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(1994)Myotonic muscular dystrophy is a genetic disease characterized mainly by muscle atrophy and myotonia, a repetitive electrical activity of muscle. In the present study, the possible role of apamin‐sensitive K+ channels in ...
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(1995)The reproductive systems of three species of Nothofagus, N. dombeyi (Mirb.) Oerst., N. nitida (Phil.) Krasser and N. obliqua (Mirb.) Oerst. (Fagaceae), were studied in their natural forest habitats in Valdivia, Chile, using ...
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(2007)We study commutative algebras A over fields of characteristic ≠2, 3 which satisfy the identity β{x(y(xx)) - x(x(xy))} + γ{y(x(xx)) - x(x(xy))} = 0. We do not assume power-associativity. We find the Peirce decomposition of ...
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(1993)McNab (1986, 1988) has hypothesized that mammals using food with low energy content should exhibit basal metabolic rates (BMR) lower than those expected on the basis of their body mass (mb). That is, those species that ...
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(Springer-Verlag, 1994)Four double-stranded RNA (dsRNA) molecules were isolated from Phaffia rhodozyma UCD 67-385. Their molecular sizes were approximately 4.3, 3.1, 0.9 and 0.75 kilobase pairs (kbp) as determined by agarose-gel electrophoresis ...
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(Kluwer Academic Publishers, 1992)This study documents the stem size and age-structure in forests dominated by different species of Nothofagus in Torres del Paine National Park (51° S), in the Chilean Patagonian region. We also explored the relationship ...
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(1993)This paper describes a method for the quantitative determination of aluminium in haemodialysis concentrates, based on the adsorption on a static mercury drop electrode of the Al-1,2 dihydroxyantraquinone-3-sulphonic acid ...
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(1993)The intrinsic fluorescence excitation and emission spectra of chicken brain tubulin showed the characteristic tryptophan fluorescence. The emission spectrum of Tb3+ in the presence of tubulin and GTP excited at 295 nm, ...
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(Springer-Verlag, 1992)We have studied the properties of membrane patches excised from the transducing lobe of Limulus ventral photoreceptors. If patches are excised into an "internal" solution that resembles the ionic composition of the cytoplasm, ...
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(Springer-Verlag, 1983)Reactions of bis(diethylamino) and dimorpholinosulfane with [Cu(H2O)6](ClO4)2 in acetonitrile and with CuCl2·2H2O in ethanol yield Cu(I) compounds and SO2. The reaction product of dimorpholinosulfane and CuCl2 in ethanol ...
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(1993)A low conductance calcium‐activated K+ channel is thought to regulate the rate of firing of several excitable cells. In skeletal muscle the expression of this channel is under nerve control. Previously, we reported that ...
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(1996)Nuclear magnetic resonance (NMR) spectroscopy is emerging as a powerful tool for the study of enzyme structure and function. This article discusses the general principles of NMR and the potential information this technique ...
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(Society for the Study of Amphibians and Reptiles, 1998)
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(1990)Endocytic vesicles isolated from rabbit reticulocytes contained an intrinsic Ca2+-pump activity that was dependent on ATP, activated by calmodulin and inhibited by vanadate. 45Ca2+ uptake and acidification studies indicated ...
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(Elsevier Ltd, 1997)
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Light-dependent channels from excised patches of Limulus ventral photoreceptors are opened by cGMP (National Academy of Sciences, 1991)The identity of the second menenger that directly activates the light-dependent conductance in invertebrate photoreceptors remains unclear; the available evidence provides some support for cGMP and Ca2+. To resolve this ...
