Biofiltration is a clean technology in which a microbial consortium is cultivated and immobilized on to a support to eliminate gaseous polluting compounds generating mainly water, CO2 and biomass. This work focused on the biofiltration of methanol, a polluting volatile organic compound, mainly emitted by paper mill, wood, painting, pharmaceutical...
La extracción de zinc a partir de minerales sulfurados se lleva a cabo exitosamente por medio de dos rutas: pirometalúrgica y/o hidrometalúrgica. No obstante, los procesos pirometalúrgicos presentan la desventaja de producir grandes cantidades de dióxido de azufre, además de la alta generación de polvos durante la etapa de la...
Se evaluó el efecto del andrógeno nandrolona en Iguana iguana, con un grupo de 20 ejemplares; 10 sujetos experimentales y un grupo control de otros10 individuos, a cada iguana del lote experimental se les aplico 2 mg./K de Decanoato de nandrolona cada cuatro semanas durante cinco meses, en tanto al...
Las “escrituras del yo” son uno de los aspectos menos abordados por la crítica en la obra de Augusto Monterroso. En esta tesis, la hermenéutica sirve como base para poder plantear una relectura de este tipo de textos a partir del análisis de dos obras en específico: La letra e...
Fisheries activities produce large quantities of non-recycled wastes all over the world. In Mexico, shrimp commercial captures and cultures generate high quantities of non-used heads. It is calculated that these wastes reach up to 32,000 annual tons and only 5% is converted in shrimp meal. In the present work we...
Diabetes mellitus is a sickness that causes death. In 1995 it ranked in the fouth place, after cardiovascular, oncological and violent causes of death. The number of patients that have this sickness is of the order of 3 to 6 % woldwide. Nowdays, diabetes is treated by the use of...
The present work was carried out in the lacustrine basin of Metztitlan, Hgo., three sampling of recent sediments were realized in November (2001), April and July (2002) and the organisms of the genus Oreochromis sp were evaluated in April and July (2002). The analyses did following the methodology proposed by...
Megasphaera elsu’enii is the main lactate-utilizing species in the rumen and has been considered one of the most important ruminal microorganisms. It is able to ferment up to 97% of the rumen lactate. Lactate removal is important in rumen ecology, because its accumulation causes dysfbnction such as reduced salivation, redistribution...
The natural protected area Corredor Biológico Chichinautzin (CBC) has a great habitat richness directly related to its geographic, climatic, geologic location and wide altitudinal range. Environmental conditions allows the establishment of a great variety of plant communities with a monocots richness of 24 families, 123 genera and 313 species. Such...
