14 resultados para RESOLUTIO


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Mode of access: Internet.

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A new method for decomposition of compo,.~itsei gnals is presented. It is shown that high freyuency portion of composite signal spectrum possesses information on echo structure. The proposed technique does not assume the shape of basic wavelet and does not place any restrictions on the amplitudes and arrival times of echoes inm the composite signal. In the absence of noise any desirrd resolution can he obtained The effect of sampling rate and jFequency window function on echo resolutio.~ are di.wussed. Voiced speech segment is considered as an example of conzpxite sigrnl to demonstrate the application of the decomposition technique.

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The conformation of bovine serum albumin (BSA), as well as its interactions with negatively charged mica surfaces in saline solutions of different pH values, have been studied by small-angle neutron scattering (SANS) and chemical force microscopy (CFM), respectively. A new approach to extract the contribution of elementary interactions from the statistically averaged force-extension curves through self-consistent fitting was proposed and used to understand the effects of pH on the interactions and conformation of BSA in saline solutions. When pH increases, the SANS results reveal that the sizes of BSA molecules increase slightly, while the statistical analysis of the CFM results shows that the averaged pull-off force for the elongation monotonously decreases. The decrease of pull-off force with the increase of pH results from the decrease in the strength of hydrogen bonding and the number of interaction pairs, as well as the slight increase of the strength of van der Waals interaction. When pH approaches the isoelectric point (pI) of BSA, results from both SANS and CFM suggest a loss of long-range interactions in BSA molecules. Our results also suggest that the force-extension curve is mainly contributed by the van der Waals interaction. The combination of SANS and CFM provides new insight to understand the interactions and conformation of BSA molecules

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El artículo presenta una síntesis de la obra escrita de Veracruz y, en parte, también de su acción. De tal modo, se exponen sus escritos filosóficos, en materia de lógica (Recognitio Summularum y Dialectica Resolutio) y de filosofía natural (Physica Speculatio), y las relecciones en las que se ocupó de los títulos de la conquista y la condición de los indios (De dominio infidelium y De decimis). También es propósito del trabajo proporcionar, a quien quiera continuar con el tema, una guía de buena parte de la abundante literatura secundaria que se ha ocupado de Fray Alonso de la Veracruz. Veracruz es un importante representante de la escolástica novohispana del siglo XVI, y simboliza el comienzo del trasplante filosófico que bajo el signo de la escolástica se extendería en Iberoamérica hasta el siglo XVIII y parte del XIX.

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1. De concursu, motione, & auxilio Dei lib III - 2. De scientia Dei futurorum contingentium lib. II - 3. De auxilio efficaci brevis resolutio - 4. De libertate diuinae voluntatis relectio prior - 5. De reuiuiscentia meritorum relectio altera - 6. De iustitia Dei disputatio