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Santiago Miahuatlan, Mexico

Garcia-Garcia L.M.,University of the South Sierra
ACM International Conference Proceeding Series | Year: 2016

The objective of this research is to analyze two important aspects: first is the centrality of the user in e-Government projects and the second is e-government processes associated with migration. Regarding the former, studies of e-government have not addressed in depth the centrality of the citizen. They have partially studied some way, either from the supply side or the demand side, so this study aims to analyze the three elements: organizational process, web portal, and necessities and capabilities from the perspective of the citizen. Furthermore, this study aims to address migration issues, in particular the modernization of National Institute of Migration at the Mexico's southern border, in Tapachula Chiapas the border with Guatemala, specifically with those migrants who came to Mexico for labor objectives. Copyright is held by the owner/author(s). Source

De Jesus Mijangos Martinez T.,University of the South Sierra
CEUR Workshop Proceedings | Year: 2011

Universal Grammar assumes that all human languages share a common structure with respect to their linguistic well-formedness conditions. In the linguistic theory called Optimality Theory (OT), this structure is represented by a set of linguistic candidate forms, a set of constraints and the definition of being optimal. From a nativist approach of OT is assumed that such structure is encoded in a Language Acquisition Device (LAD) that is provided to the learner of a language genetically. While OT is in a symbolic level, the LAD is in a biological one. These two levels have already been complemented with a connectionist intermediate level. In this paper our aim is to propose a complementary connection between the symbolic and the connectionist levels using penalty logic. We propose a translation from connectionism to logic expressed in the penalty knowledge base cv. This last translation try to simplify the encoding of the common structure it suggested by CVnet. Source

Type 2 diabetes mellitus is a complex disease and a global health problem. Therefore, the first level of health care should handle the approaches of medical genetics and genomics to reduce its incidence. The aim is to present perspectives analyzed by our group in two areas of genetics and its clinical application. Emphasis is placed on the coexistence of several genetic forms clinically detectable in patients with diabetes, missing heritability associated with low penetrance, and epigenomics mechanism. It is discussed the effect of genetic variation associated with resistance to insulin, beta-cell dysfunction, shaft incretin, and other points of interest, such as thrifty genotype hypothesis, conformational disease, genetically unknown foods, phenocopies as clinically silent hypercortisolism, molecular phytopharmacology in the clinical management. Finally, the result was displayed in the Mexican population from genetic studies and new findings of clinical importance, such as involvement of melatonin and effect of variations in the number of copies in a genomic region. Source

Yu F.,Brock University | Thamm A.M.K.,Brock University | Reed D.,Plant Biotechnology Institute | Villa-Ruano N.,Brock University | And 6 more authors.
Phytochemistry | Year: 2013

Catharanthus roseus accumulates high levels of the pentacyclic triterpene, ursolic acid, as a component of its wax exudate on the leaf surface. Bioinformatic analyses of transcripts derived from the leaf epidermis provide evidence for the specialized role of this tissue in the biosynthesis of ursolic acid. Cloning and functional expression in yeast of a triterpene synthase derived from this tissue showed it to be predominantly an α-amyrin synthase (CrAS), since the α-amyrin to β-amyrin reaction products accumulated in a 5:1 ratio. Expression analysis of CrAS showed that triterpene biosynthesis occurs predominantly in the youngest leaf tissues and in the earliest stages of seedling development. Further studies using laser capture microdissection to harvest RNA from epidermis, mesophyll, idioblasts, laticifers and vasculature of leaves showed the leaf epidermis to be the preferred sites of CrAS expression and provide conclusive evidence for the involvement of this tissue in the biosynthesis of ursolic acid in C. roseus. © 2012 Elsevier Ltd. All rights reserved. Source

Alavez-Ramirez R.,Grupo Mexico | Alavez-Ramirez R.,Technological Institute of Oaxaca | Montes-Garcia P.,Grupo Mexico | Martinez-Reyes J.,ESFM IPN Escuela Superior de Fisica y Matematicas | And 3 more authors.
Construction and Building Materials | Year: 2012

This study analyzes the use of lime and sugar cane bagasse ash (SCBA) as chemical stabilizers in compacted soil blocks. The blocks were tested for flexure and compression in a dry and a saturated state. The tests were performed at 7, 14 and 28 days of age in order to evaluate the effects of the addition of lime and SCBA on the mechanical properties of the compacted soil blocks. The results indicate that blocks manufactured with 10% of lime in combination with 10% of SCBA showed better performance than those containing only lime. Nevertheless, the addition of lime improved the strength of the blocks when compared with blocks fabricated with plain soil. According to SEM and DRX analyses, considerable improvement of the matrix was observed due to the formation of strong phases, such as CSH and CAH for the mixtures with additives. It was also concluded that the combination of SCBA and lime as a replacement for cement in the stabilization of compacted soil blocks seems to be a promising alternative when considering issues of energy consumption and pollution. © 2012 Elsevier Ltd. All rights reserved. Source

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