Pyro-refining is one of the techniques used in recycling lead. Two significant stages in theprocess are decopperization and desilverization, which are traditionally done by addingpowdered Sulfer and Zinc at the surface of the lead bath and then mixing it with…

This work is focused on the development of a prototype patch antenna designed for use asa replacement antenna in automotive Global Positioning Systems (GPS). In simulations andtesting of the prototype, the focus was on the antenna gain. Transmission-reception testingwas done…

Las imágenes por resonancia magnética pesadas en difusión son ampliamente utilizadaspara el estudio de las estructuras cerebrales dentro de la materia blanca del cerebro. Sinembargo, recuperar las orientaciones de los axones puede ser susceptible a errores por elruido dentro de…

  This paper describes an investigation of the density and distribution of phytoplankton and zoobenthic organisms carried out in the Zempoala Lake from 1998 to 1999. The data showed that the flora is made up of 29 species, distributed in…

This paper tests the hypothesis that perceived differences in Mexican identity and political interest condition social well-being and the perception of anomie. The three dimensions of Tajfel’s social identity theory was adopted to measure Mexican identity, as well as the…

Experimental high energy physics is relatively new in Mexico, it is no more than 20 years old. The group of Experimental High Energy Physics of the Instituto de Física de la Universidad de Guanajuato (IFUG) (Now División de Ciencias e…

“Narcocorridos” are ballads about the traffic in drugs, and in a musical form chronicle the fate of two social actors: the protagonists of the production, distribution and consumption of hard drugs extracted from opium poppy, coca leaves, and marijuana, and…

Se presenta la simulación y control de un sistema ciclista-bicicleta-pista en competencia de descenso usando ADAMS© y Matlab©. El comportamiento dinámico de la suspensión de una bicicleta fue analizado a través de un novedoso algoritmo de control desarrollado, que denominamos…

The genetic improvement of the animals based in productive records and genealogical information, is a fundamental mechanism to increase the economic income of the commercial farms, through the estimation of the predicted breeding values (VGP’s). The VGP’s allows the identification…

Los procesos de memoria, incluido el recuerdo, son influidos tanto por la estructura objetiva y lógica del conocimiento, como por aspectos subjetivos y motivacionales. La frecuencia y distribución de unidades en una tarea de recuerdo libre arrojan datos sobre la…