958 resultados para Região do Alto Douro vinhateiro


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[Catalogue de libraire. Paris. Anisson, Jean. 1702]

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Gestión del Conocimiento

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Epoxides can be hydrolyzed by fungi to produce chiral diols. The first part of this thesis presents an investigation of the microbial hydrolysis of aziridines comparable in structure to epoxide biotransformation substrates. Biotransformation of the aziridines 1 -methyl-2-phenyl aziridine, 2- phenylaziridine and N-methyl-7-aza bicyclo[4.1.0] heptane was studied using Beauveria sulfurescens, Aspergillus niger and Diplodia gossypina but no evidence for enzymic hydrolysis was obtained. The hydroxylation reaction performed by the fungus Beauveria sulfurescens ATCC 7159 has been studied for many years and several models describing the hydroxylating pattern exhibited by this fungus have been proposed. The second part of this thesis presents a test of the proposed models. The ability of Beauveria sulfurescens to hydroxylate thirty potential substrates was examined, and the data suggest that none of the earlier proposed models accounts for all of the bioconversion results. A possible explanation is proposed, suggesting that there is more than one enzyme responsible for the hydroxylation reactions performed by Beauveria sulfurescens.

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Tesis (Maestría en Ciencias de la Ingeniería Eléctrica con Especialidad en Electrónica) UANL

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Tesis (Maestría en Psicología Social) U. A. N. L.

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Tesis (Maestría en Enfermería con Especialidad en Salud Comunitaria) U.A.N.L.

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Tesis (Maestría en Ciencias de la Administración con Especialidad en Relaciones Industriales) - UANL, 2000

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[Tesis] ( Maestría en Formación y Capacitación de Recursos Humanos) U.A.N.L.

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[Tesis] (Maestría en la Enseñanza del Inglés como Segunda Lengua) U.A.N.L.

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Tesis (Maestro en ciencias de la ingeniería eléctrica con especialidad en potencia) U.A.N.L. Facultad de Ingeniería Mecánica y Eléctrica.

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Tesis (Maestría en Ciencias de Enfermería) UANL, 2012.

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Tesis (Maestría en Ciencias con Orientación en Materiales de Construcción) UANL, 2012.