974 resultados para k-nearest neighbours
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El objetivo de este estudio es analizar la pronunciación del español por parte de hablantes chinos para poder detectar posibles dificultades a la hora de adquirir el sistema fónico español
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Soitinnus: Fagotti, ork.
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Soitinnus: Viulu, piano.
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Soitinnus: Piano, oboe, klarinetti, fagotti, käyrätorvi.
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Chromatographic fractionation of bark extracts from Simira glaziovii (Rubiaceae) afforded the steroids beta-sitostenone, stigmastenone, beta-sitosterol and stigmasterol, methyl trans-4-hidroxy-3-methoxycinamate (1), the alkaloids harmane (2) and the new stereoisomer of ophiorine B (3). The structures were established by ¹H and 13C NMR, including 2D techniques and mass spectral analysis, of the natural products and pentaacetyllyalosidic acid (4a) and beta-carboline monoterpene tetraacetylglucoside (5, 1,22-lactamlyaloside) derivatives obtained by chemical transformations.
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Soitinnus: Piano, ork.
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Soitinnus: Piano.
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Peer-reviewed