Listar Artículos Open Access por título
Mostrando ítems 309-328 de 396
-
Procedencia de la Formación La Casita y la Arcosa Patula: implicaciones para la evolución tectono-magmática del NE de México entre el Carbonífero y el Jurásico.
(Revista Mexicana De Ciencias Geológicas, 2014-01)During Valanginian-Hauterivian time, La Casita Formation (Monterrey trough) and the Patula Arkose (Sabinas basin) formed sedimentary units distributed in the southeast and northeast edge of the Coahuila block. The present ... -
Procesos de transporte de arsénico y metales en aguas superficiales del distrito minero de Taxco, México: Aplicación de isótopos estables.
(Hidrobiológica, 2014-01)Water isotopic ratios 18O/16O, 2 H/H and 34S/32S in dissolved sulfates were measured to determine sulfur provenance and dominant processes of transport, and, distribution of As and metals in surface waters in the mining ... -
Procesos rururbanos y seguridad en la vivienda tradicional
(Observatorio del desarrollo, 2015-01) -
Producción de gas in vitro y características fermentativas de consorcios bacterianos celulolíticos ruminales de búfala de agua (Bubalus bubalis) y vaca suiz-bu
(AGROCIENCIA, 2019-03)The cellulolytic bacterial consortia (CBC) serve as additives in the feed of ruminants to improve the degradation of cellulose and hemicellulose. The objective of the present study was to determine the in vitro production ... -
Producción de gases efecto invernadero in vitro de leguminosas arbóreas del trópico seco mexicano.
(Archivos de Zootecnia, 2018-01)Methanogenesis is part of the energetic metabolism of ruminants, however there are legumes that have specific characteristics, which help reduce the production of anthropogenic methane. The objective was to determine the ... -
Producción in vitro de ácidos grasos volátiles de bacterias celulolíticas reactivadas y bacterias ruminales totales en sustratos celulósicos.
(AGROCIENCIA, 2016-04)In vitro methods are suitable for comparing degradation of cellulosic substrates and synthesis of products derived from fermentation, such as volatile fatty acids (VFA). The objectives of this study were to compare the ... -
Production of biosurfactants by bacteria isolated from a mine tailing zone in Southern Mexico and their resistance to heavy metals
(Journal of Bacteriology Research, 2014-08)Tailings generated through mining processes often create leachates containing high concentrations of heavy metals such as As, Fe, Mn, Zn and Pb. These high concentrations of heavy metals result in environmental damage such ... -
Production of Lignocellulolytic Enzymes with Pleurotus ostreatus-IE8 by Solid Fermentation and its Effect on the Chemical Composition of Sugarcane Bagasse.
(Life Science Journal, 2015-12)Sugarcane bagasse (SCB) is infrequently used in feeding ruminants because of its poor nutritional quality. The use of diverse physical, chemical and biotechnological methods for pre-treatment aim to improve its nutritional ... -
Productividad de variedades de alfalfa en el Valle de México.
(Acta Universitaria, 2018-02-03)Alfalfa is one of the most important legumes worldwide and is the most used in the feeding of dairy cattle in Mexico. The objective of this research was to analyze productive parameters of commercial alfalfa varieties with ... -
Productivity of orchard grass (Dactylis glomerata L.) alone and associated with perennial ryegrass (Lolium perenne L.) and white clover (Trifolium repens L.)
(Revista Brasileira de Zootecnia Brazilian, 2017-01)The objective of this research was to evaluate the productive capacity of orchard grass alone and associated with perennial ryegrass and white clover sown at different proportions. Treatments consisted of the following ... -
Promoviendo la lectura reflexiva en profesores guerrerenses de nivel básico.
(Foro de Estudios sobre Guerrero, 2019-02)For teachers, one of the goals is to teach for the understanding of concepts, however, his teaching practice is not enough to carry out activities that promote it, and consequently strategies should be proposed to the ... -
Propiedades físicas, químicas y antioxidantes de variedades de mango crecidas en la costa de Guerrero
(Revista fitotecnia mexicana, 2016-05-20)Mango (Mangifera indica L.) is a tropical fruit that stands out for its par¬ticular flavor and aroma, it is widely accepted, and it has growing demand in international markets. Since properties and composition vary according ... -
Propiedades ópticas de enredaderas en fachadas vegetadas
(Revista Iberoamericana de Ciencias, 2016-01)n this work the optical properties of the vines Pentalinon luteum and Clitoria ternatea native of tropical America whose qualities are reported as: adaptability to hostile environment, low water requirement, broad foliage ... -
Propiedades ópticas de enredaderas en fachadas vegetadas
(Revista Iberoamericana de Ciencias, 2016-10)In this work the optical properties of the vines Pentalinon luteum and Clitoria ternatea native of tropical America whose qualities are reported as: adaptability to hostile environment, low water requirement, broad foliage ... -
Propuesta didáctica para la enseñanza de la traslación de coordenadas y su uso en la graficación de curvas.
(Revista Premisa, 2016-01)En este trabajo se presenta una propuesta didáctica en la que se describe la utilidad del software GeoGebra como un recurso heurístico para la enseñanza y aprendizaje en el nivel preuniversitario de la graficación de algunas ... -
Propuesta teórico-didáctica para la enseñanza y aprendizaje del concepto del área.
(PREMISA, 2019-04)A theoretical-didactic proposal for the planning of teaching of the concept of area of simple polygons in the preuniversity is described. It presents two hypothetical learning trajectories, the first is based on counting ... -
Propuestas de políticas públicas para la prevención de la violencia y el delito en Acapulco, Guerrero 2018
(Inciso, 2018-04-26)This article aims to provide a series of recommendations to counteract the violence in Acapulco, which is classified as one of the most dangerous cities in the world. They are based on the results of a diagnosis realized ... -
Pseudomonas aeruginosa strains resistant to antibiotics and heavy metals, producing biosurfactant, pyocyanin and biofilm from surfaces hospital environment
(Bothalia Journal, 2015-01)Seven strains of Pseudomona aeruginosa isolated from hospital environmental surfaces were characterized in order to test their ability to produce to different antibiotic resistance and heavy metal concentration, biosurfactants, ... -
Pseudomonas aeruginosa, an epidemiological risk strains isolated in hospital environment
(International Journal of Current Microbiology and Applied Sciences, 2015-01)Pseudomona aeruginosa isolated from hospital environmental surfaces were characterized and produce to different antibiotic resistance and heavy metal concentration, biosurfactants, pyocyanin, biofilms, as well as to measure ... -
PTPN22 1858C>T polymorphism is associated with increased CD154 expression and higher CD4+ T cells percentage in rheumatoid arthritis patients.
(Journal Clinical Laboratory Analysis, 2018-10-14)Background: CD40 is a costimulatory molecule for B cells, and CD154 is a marker of CD4+ T cells activation. CD40 CD154 interaction promotes pro¿inflammatory cytokines secretion and autoantibodies production. PTPN22 gene ...