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This article discusses centers of origin  and genetic divesification of domesticated plants in Mexico, in the context of the introduction of transgenic hybrids to Mexico. The teritories of present day indigenous groups are associated with strains of corn. Mexico needs…

Since the first Computer and Internet based learning developments, there has been a recurrent idea: the creation of reusable didactic pieces, developed once and used many times in instructional processes, called learning objects. These elements promised to constitute knowledge bases…

Openness in organizations to obtain new ideas or create alternative paths to market, enables the identification of new elements in innovation management. This article sets out how, as of the liberalization of the Information and Communication Technology (ICT) sector in…

A Berg model application for ZrOX thin film deposition by DC reactive sputtering is presented. An alternative treatment to this model is proposed, focused on an engineering point of view. Berg model involves target poisoning as a compound covering a…

In this work we present a theoretical study of the spontaneous capillary flow of a viscous liquid, developed in the gap between a couple of parallel corrugated plates (corrugated Hele-Shaw cell). The periodical corrugation of the interior walls of the…

In the past few years, schools have been looking for options that enable them to raise the quality of education. Technological advances and their amazingly fast evolution, shape in Multimedia Systems (MMS) as the present and future of humanity. For…

Piera Aulagnier plantea que la práctica no puede ser sino teórico-clínica, enfatizando la implicancia de la teoría en la escucha, hecho que supone la preservación de la alianza dada entre lo conocido del marco conceptual y lo imprevisto que se…

This study approaches the English navigations along the colonial Pacific during the first part of the 18th Century, mainly through the travel logs of the British expeditioners. The logs show the knowledge that these travelers had of the American territory…

Despite the achievements of the sciences in the last three or four centuries, the erroneous view is still current that the sciences lack objectivity and stability. This view is clearly not based upon concrete observation and analysis, but rather upon…