Projeto e construção de um bioreator para síntese orgânica assimétrica catalisada por saccharomyces cerevisiae (fermento biológico de padaria)

A model for the construction of a simple and cheap apparatus to be used as bioreactor for reactions catalyzed by baker's yeast (Saccharomyces cerevisiae) is described. The bioconversion and separation of cells from products and residual substrates are obtained at the same time. The reactions carried out in this type of reactor are faster than those catalyzed by immobilized cells. Yeast cells can be cultivated in this bioreactor operating with cell recycling at appropriated conditions using glucose and other nutrients.

Uma metodologia para o projeto teórico de conversores moleculares de luz

Recentlly, we have proposed the representation of lanthanides within AM1 as sparkles for the purpose of obtaing ground state geometries of their complexes. We tested our quantum chemical sparkle model (SMLC/AM1) for the prediction of the crystallographic structure of complexes with coordination number nine, eight and seven. A technique is introduced for the theoretical prediction of eletronic spectra of the organic part of lanthanide complexes by replacing the metal ion by a point charge with the ligands held in their positions as determined by the SMLC/AM1, and by computing the theoretical spectra via the intermediate neglect of differential overlap/spectroscopic-configuration interaction (INDO/S-CI).

Notes sobre l'editorial Maucci i les seves traduccions

Fundada a Barcelona el 1892 per un italià que havia après l’ofici a Llatinoamèrica, l’editorial Maucci esdevé ben aviat capdavantera en la difusió del llibre a gran escala i a preus molt econòmics. Un catàleg de 1908 ens permet deduir que publica sobretot literatura, tant d’autors cultes com d’autors de consum, i que difon una gran quantitat de traduccions, sovint primícies en espanyol (llengua que utilitza en exclusiva). Hi predomina de bon tros la literatura francesa, ja sigui d’escriptors de prestigi ja sigui de novel·listes de fulletó. La majoria dels pocs traductors mencionats són poc o no gens coneguts. Testimonis coetanis de l’expansió de l’editorial l’acusen de mutilar els originals i de pagar misèrrimament les traduccions, que solien ser molt deficients.