Huejutla de Reyes, Mexico

Huejutla Institute of Technology

www.ithuejutla.edu.mx
Huejutla de Reyes, Mexico
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Granados-Victorino R.L.,Autonomous University of the State of Hidalgo | Sanchez-Gonzalez A.,Autonomous University of the State of Hidalgo | Martinez-Cabrera D.,Huejutla Institute of Technology | Octavio-Aguilar P.,Autonomous University of the State of Hidalgo
Revista Mexicana de Biodiversidad | Year: 2017

Information on the taxonomic composition and conservation status of the semi-evergreen tropical forest in the state of Hidalgo is limited and descriptive, and disturbances caused by human activities are drastically affecting its structure and original physiognomy. For these reasons, the objectives of this study were: 1) to conduct an inventory of the tree flora, and 2) to provide quantitative data on the structure of the different semi-evergreen tropical forest successional stages. The floristic inventory and structural characterization were conducted in 9 localities of Huautla municipality, in the "Huasteca hidalguense". In each locality, the basal area, frequency, density of individuals (normal diameter > 10. cm) and relative importance value of each species were calculated. A total of 92 species, 76 genera and 31 families of trees were identified. The families Fabaceae, Malvaceae and Moraceae were the most representative for their species richness. The species with highest relative importance value were Adelia barbinervis and Cedrela odorata in early stages of succession, Bursera simaruba and Guazuma ulmifolia in intermediate stages and Brosimum alicastrum in mature stages. In few localities, mature vegetation was observed, and total tree species richness was comparable with that recorded in the same type of vegetation in other entities of Mexico. © 2017 Universidad Nacional Autónoma de México, Instituto de Biología.


Sanchez-Mendoza M.E.,National Polytechnic Institute of Mexico | Cruz-Antonio L.,National Autonomous University of Mexico | Arrieta-Baez D.,National Polytechnic Institute of Mexico | Olivares-Corichi I.M.,National Polytechnic Institute of Mexico | And 3 more authors.
International Journal of Pharmacology | Year: 2015

Peperomia hispidula is used in traditional Mexican herbal medicine to treat gastric ulcers. However, this use has not been corroborated scientifically. Hence, the gastroprotective activity of P. hispidula was herein evaluated, as well as the role of endogenous NO, sulfhydryl groups and prostaglandins in the gastroprotective effect shown by one compound. The activity of P. hispidula was evaluated by using an animal model of gastric lesions induced by absolute ethanol in Wistar rats. Methyleugenol was isolated via silica gel column chromatography. The cytoprotective mechanisms of this compound were evaluated in relation to nitric oxide (pretreatment with L-NAME), sulfhydryl groups (pretreatment with NEM) and prostaglandins (pretreatment with indomethacin). The hexane and dichloromethane extracts showed gastroprotective activity, the latter (at 100 mg kg-1) having the greatest effect (91.55±3.12%). Methyleugenol was identified as one of the most active compounds in this extract. The gastroprotective activity of methyleugenol at 100 mg kg-1 was not attenuated by pretreatment with L-NAME, NEM or indomethacin. Methyleugenol was identified as one of the compounds of P. hispidula that exerts a gastroprotective effect. The results suggest that the gastroprotective mechanism of methyleugenol does not involve nitric oxide, sulfhydryl groups or prostaglandins. © 2015 Asian Network for Scientific Information.


Valencia-Herverth R.,Huejutla Institute of Technology | Valencia-Herverth J.,Huejutla Institute of Technology | Mendoza-Quijano F.,Huejutla Institute of Technology
Revista Mexicana de Biodiversidad | Year: 2010

Six new state records of birds for Hidalgo based on field work carried out from August 2006 to October 2007 are presented, and from Unpublished Records of Specimens in the Ornithological Collection of the Instituto Tecnológico de Huejutla.


De Mayo Araucana Mejenes-Lopez S.,Huejutla Institute of Technology | Hernandez-Bautista M.,Huejutla Institute of Technology
Revista Mexicana de Biodiversidad | Year: 2013

We present the first record of Morelet's crocodile Crocodylus moreletii for Hidalgo, Mexico. The crocodile was hunted in the estuary near the river by a local from the community Congreso Permanente Agrario, 13 km E from Huejutla at an elevation of 90 m asl.


Martinez-Cabrera D.,Colegio de Mexico | Martinez-Cabrera D.,Huejutla Institute of Technology | Terrazas T.,National Autonomous University of Mexico | Y Ochoterena H.,National Autonomous University of Mexico
Brittonia | Year: 2014

We studied floral morphology and anatomy of seven genera of the tribe Hamelieae sensu Manns & Bremer with the goal to evaluate the potential of these characters in the circumscription of the tribe. Twenty two species of Hamelieae were studied as well as ten representative species of the Cinchonoideae, Ixoroideae, and Rubioideae subfamilies for comparative purposes. The Hamelieae members had stamens adnate to the corolla base, anther dorsifixed with introrse dehiscence, amphivasal vascular bundle in the filament, endothecium of one layer of cells, papillose stigma, axile placentation, orthotropous and unitegmic ovules, epidermal cells of the integument with tannins, and idioblasts with raphides in all whorls. Exostema and Hintonia (Cinchonoideae) share with Hamelieae the stamens adnate to the corolla base and the imbricate aestivation. However, these genera are unlike of the tribe because they have anthers with latrorse dehiscence, round filaments, ovoid styles with a constriction, anatropous ovules with basipetal orientation, and idioblasts with druses or crystal sands. Rubioideae and Cinchonoideae representatives unlike Hamelieae and species of Cinchonoideae studied have valvate and contorted to the left aestivation, anthers dorsifixed at the middle, stamens adnate to the throat of the corolla, and trichomes in the throat of the corolla tube. The imbricate aestivation, the occurrence of raphides, and the adnate stamens of the corolla base supported the relationships among Hamelieae and Cinchonoideae as suggested by molecular phylogenies. © 2013 The New York Botanical Garden.


Martinez-Cabrera D.,Huejutla Institute of Technology | Terrazas T.,National Autonomous University of Mexico | Ochoterena H.,National Autonomous University of Mexico | Torres-Montufar A.,National Autonomous University of Mexico
Revista Mexicana de Biodiversidad | Year: 2015

Wood and bark anatomy of 42 species of Rubiaceae from 8 tribes were studied with the aim to assess whether the anatomical characters allow separation of species belonging to the different genera in Mexico and whether characters are related to the environment where they live or their habit. Two groups resulted in the phenogram, corresponding to wood type I and II sensu Koek-Noorman. Not all species of Bouvardia and Psychotria grouped in their respective genera and Notopleura anomothyrsa is different from the other species having fibertracheids and scalariform intervascular pits. The Arachnothryx, Chione, Exostema, Hintonia and Randia group with wood type I presents rhytidome, bands of sclereids and 3 types of crystals in the phloem, and are trees or shrubs of the seasonal dry forest and the cloud forest. The group with wood type II has a single periderm, endodermis, groups of fibers/sclereids and raphides in the phloem, and are shrubs of the tropical rainforest, seasonal dry forest, cloud forest, and pine-oak forest. Growth rings in these species may be associated with phenology and habitat conditions, but vessel diameter and density appear to have a strong phylogenetic signal. © 2015 Universidad Nacional Autónoma de México.


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OBJETIVO Formar ingenieros en Desarrollo Comunitario basados en competencias profesionales para la planeacin, gestin, ejecucin y evaluacin de proyectos comunitarios, promoviendo el dilogo intercultural entre la compleja diversidad de las relaciones sociales, polticas y culturales, favoreciendo los procesos de vinculacin comunitaria y el manejo sustentable de los recursos naturales. REAS DEL CONOCIMIENTO: Sociologa rural, Biologa, Algebra, Qumica, Botnica, Calculo diferencial e integral, Microbiologa, Fsica, Zoologa, Ecologa, Fisiologa vegetal y animal, Contabilidad y costos, Desarrollo sustentable, Agroclimatologa, Edafologa, Agroecologa, Produccin agropecuaria y forestal, Conservacin del agua, Informacin geogrfica, Administracin de la produccin, Biotecnologa, Creacin de nuevas empresas, etc ...


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Huejutla Institute of Technology | Entity website

ASIGNACIN DE NMERO DE SEGURIDAD SOCIAL PARA ESTUDIANTES DEL TEC DE HUEJUTLA. REQUISITOS OBLIGATORIA (ESTUDIANTES INSCRITOS) ASIGNACIN DE NMERO DE SEGURIDAD SOCIAL REQUISITOS: 1 ...


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OBJETIVO Formar profesionistas lderes, analticos, crticos y creativos, con visin estratgica y amplio sentido tico, capaces de disear, implementar y administrar infraestructura computacional para aportar soluciones innovadoras en beneficio de la sociedad, en un contexto global, multidisciplinario y sustentable. REAS DEL CONOCIMIENTO: Administracin, Auditora, Bases de datos, Calidad del software, Contabilidad, Desarrollo sustentable, Estadstica, Estructura de datos, Programacin, Redes, Sistemas de informacin, Investigacin de operaciones, Matemticas, Mercadotecnia, Probabilidad, Sistemas operativos, Seminario de tica, Software de sistemas, Psicologa organizacional, Taller de investigacin, Tpicos avanzados de bases de datos ...

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