930 resultados para 3-21


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Collection : Bibliothèque latine-française

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La Cámara de Comercio de Bogotá inscribió el acta No. 005 de la asamblea general de la entidad sin ánimo de lucro FUNDACIÓN HORIZONTES DEL FUTURO en la cual se reemplazaban algunos miembros de la junta directiva. Dos (2) asociados y miembros de la junta directiva de la fundación, interpusieron recurso de reposición y solicitaron la nulidad del acto administrativo señalado.

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Two enzyme mechanisms were investigated: the 21-dehydroxylation of corticosteroids by Eubacterium lentum and the dehalogenation of 4-chlorobenzoic acid by Pseudomonas sp. CBS 3. , Chemical and enzymic methods of reduction of 21-oxo steroids were used to generate C-21-d1 compounds of tetrahydrodeoxycorticosterone, with both predominant stereochemistries. It was found that during the dehydroxylation the pro-S hydrogen at the C-21 position was lost preferentially. This suggests that the enzyme removes the pro-S hydrogen during binding to the active site as the ene-diol. To study the hydrolytic replacement of chlorine by hydroxyl , p-chlorobenzoic acid-d4 was prepared and sent to Germany for an ~ncubation with an enzyme preparation of 4-Chlorobenzo~te Dehalogenase. Results suggests the possible loss of deuterium during the conversion of p-chlorobenzoate to p-hydroxybenzoate, from all four ring positions. Many methods of preparing the control compound p-hydroxybenzoic acid-d4 were investigated.

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Survey map of the Second Welland Canal created by the Welland Canal Company showing a portion of the Grantham Township near Port Dalhousie. Identified structures associated with the Canal include the new towing path. The surveyors' measurements and notes can be seen in red and black ink and pencil. Features of the First Welland Canal are noted in red ink and include the old Lock 2, old towing path and the original bed of the Twelve Mile Creek. Local area landmarks are also identified and include streets and roads (ex. Side Line and Old Road), four unnamed bridges, and a tree stump along the old towing path. A New Road to Port Dalhousie is featured in red ink. Properties and property owners of note are: Concession 3 Lots 21, 22 and 23, Concession 4 Lots 21, 22 and 23, Jabez Johnson, Adam Gould, Peter Weaver and Samuel Wood.

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Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.

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Volumes of interest were published between 1812 and 1815 with articles about the War of 1812. Issue for Feb. 21, 1815, beginning on page 2 and continuing to take all of page 3 and some of page 4 is the full text headed: "TREATY OF PEACE" which is prefaced with an address by James Madison. Also in this issue is an article: "Victory At Orleans" and another article headed: "The War--From New Orleans".

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Tesis (Maestría en Ciencias Odontológicas con Especialidad en Endodoncia) UANL, 2012.