Mostrando ítems 1021-1040 de 1614

    • Methodology based on problem solving in the treatment of the concept of limit to infinity 

      Morales Carballo, Armando; Dolores-Flores, Crisólogo; Nolasco Hesiquio, Hermes; Hernández Gómez, Juan Carlos; Sigarreta Almira, José María (International Journal of Research in Education Methodology, 2014-01)
      In this research, a methodological strategy it is raised for the assimilation of the concept of infinity limit in the teaching and learning of calculus at the University level. The strategy considers the contributions and ...
    • A Basic Backward Bifurcation Model in Epidemiology 

      Villavicencio Pulido, José Geiser; Barradas Bribiesca, José Ignacio; Hernández Gómez, Juan Carlos (Applied Mathematical Sciences, 2013-06-11)
      The existence of a backward bifurcation has important consequences in the strategies and control policies designed to eradicate or control an infectious disease because the policies of public health when this phenomenon ...
    • Fractional stochastic heat equation on the Half-Line 

      Arciga Alejandre, Martin Patricio; Ariza Hernandez, Francisco Julian; Sánchez Ortiz, Jorge; Salmerón Rodríguez, Uriel (Applied Mathematical Sciences, 2016-11-12)
      In this paper, we consider an initial-boundary value problem for a stochastic non-linear heat equation with Riemann-Liouville spacefractional derivative and white noise on the half-line. We construct the integral representation ...
    • Little environmental dimension, gives reason to an urgent need and sustainable proposal of curricular inclusion 

      Bedolla Solano, Ramon; Sampedro Rosas, María Laura (IJRDO-Journal of Educational Research, 2017-10)
      The environmental crisis in the world, has promoted the integration of the environmental dimension in education, in this area, are located universities. Resolutions of international summits such as the one organized by the ...
    • Captura de carbono por una fachada vegetada 

      Rodríguez Herrera, América Libertad; Carbajal Ávila, Jazmín; Rodríguez Rosales, Antonio Alfonso; Hernández Cocoletzi, Heriberto (Acta Universitaria, 2017-09-22)
      Vegetation in large land area plays the role of a natural carbon sink which eliminates high concentrations of greenhouse gases; for this reason, it is necessary to maintain the balance between the built and vegetated ...
    • Forest structure of the mangrove zone of the Coyuca de Benítez lagoon, Guerrero state 

      Castillo Elías, Benjamín; Gervacio Jiménez, Herlinda; Bedolla Solano, Ramon (Revista Mexicana de Ciencias Forestales, 2017-12-15)
      Mangroves are a forest resource of great importance in the wetlands, by its diversity and timber structure, as for the ecological values, socio-economic and environmental benefits that represent. Its composition depends ...
    • Stochastic black-scholes equation with time-fractional derivative on the half-line 

      Sánchez Ortiz, Jorge; Arciga Alejandre, Martin Patricio; Ariza Hernandez, Francisco Julian; Hernández Pastrana, Juan Carlos (International Journal of Pure and Applied Mathematics, 2016-01)
      We investigate the pricing of options using a modified Black-Scholes equation with a time-fractional derivative and additive white noise on the half-line. We construct the Green function for the initial-boundary value ...
    • Intoxication and risks derived from exposure to pesticides in farmers Metztitlan Hidalgo, Mexico 

      Toribio Jiménez, Jeiry; Ruvalcaba Ledezma, Jesús Carlos; Cortés Ascencio, Sandra Yazmín; Prieto García, Francisco; Pelallo Martínez, Nadia Azenet; Vázquez Alvarado, Patricia (KASMERA, 2015-01)
      The aim of the investigation consists on describing the toxic impact of pesticides, as well as analyzing farmers' awareness and knowledge about their uses and risks by conducting a discourse analysis and community intervention ...
    • The hyperbolicity constant of infinite circulant graphs 

      Sigarreta Almira, José María (Open Mathematics, 2017-03-30)
      The space X is hyperbolic.in the Gromov sense/ if any side of T is contained in a neighborhood of the union of the two other sides, for every geodesic triangle T in X. Deciding whether or not a graph is hyperbolic is usually ...
    • Propiedades ópticas de enredaderas en fachadas vegetadas 

      Rodríguez Herrera, América Libertad; Lopez Velasco, Rocio; Carbajal Ávila, Jazmín; Rodríguez Rosales, Antonio Alfonso; Hernández Cocoletzi, Heriberto (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 ...
    • On the total k-domination in graphs 

      Hernández Gómez, Juan Carlos; Sigarreta Almira, José María (Discussiones Mathematicae, 2018-01)
      Let G = (V, E) be a graph; a set S V is a total k-domination number (G) is the minimum cardinality among all total k-dominating sets. In this paper we obtain several tight bounds for the total k-domination number of a ...
    • Mathematical aspects on the harmonic index 

      Hernández Gómez, Juan Carlos; Romero Valencia, Jesus; Reyes Carreto, Ramon (International Journal of Mathematical Analysis, 2017-01)
      The aim of this paper is to obtain new inequalities involving the harmonic index H(G) to other well-known topological indices. Moreover, we show that the computation of the harmonic index is reduced to the computation of ...
    • Approximation to the study of water quality 

      Pineda Pineda, Jair de Jesús; Rosas Acevedo, Jose Luis; Hernández Gómez, Juan Carlos; Rosario Cayetano, Omar; Sigarreta Almira, José María (Applied Mathematical Sciences, 2018-03-25)
      The main objective of this study is to propose a discrete approach to water quality study, applied to freshwater ecosystems, through the uctuations in the populations of benthic macroinvertebrates and their tolerance to pollution.
    • Spectral study of the Geometric-Arithmetic Index 

      Sigarreta Almira, José María (Communications in Mathematical and in Computer Chemistry, 2015-11-14)
      The concept of geometric-arithmetic index was introduced in the chemical graph theory recently, but it has shown to be useful. One of the main aims of algebraic graph theory is to determine how, or whether, properties of ...
    • On the contextualization of mathematical problems 

      Dolores-Flores, Crisólogo; Bahena Salgado, Amín; Sigarreta Almira, José María; González Yero, Ismael (International Journal of Research in Education methodology, 2015-04-03)
      In this work the treatment of the cognitive interests of students is revealed, it is a way that allows the stratification of the group students according to their tastes and aspirations, and from that position by contextualizing ...
    • Valoración cultural, usos y manejo de la fauna silvestre en comunidades rurales del estado de Guerrero 

      Zavala Sanchez, Zaira (Universidad Autónoma de Guerrero (México), 2018-07)
      Historically, rural communities and wildlife have maintained a close relationship, based on traditional knowledge that includes biological, ecological, cultural and historical aspects of animal species, as well as management ...
    • Patrones de transfiguración de la vivienda vernácula caso de estudio: Chilapa de Álvarez (Guerrero, México) 

      Ascencio López, Osvaldo; Jerónimo Vargas, Constantino; Romero Pérez, Francisco Javier (Territorios, 2014-07-18)
    • Patrimonio arquitectónico en los hoteles de Taxco de Alarcón, Gro 

      Alcaraz Morales, Osbelia; Salgado Galarza, Agustín Carlos; Babini, Andrea; Hernández Torres, Jesús (Topofilia, Revista de Arquitectura, Urbanismo y Territorios, 2017-01)
      In this work an analysis is elaborated on the concept of cultural heritage. A study is made to know the authentic interest of the different actors who participate and affect the architectural heritage, the government and ...
    • Aporte al turismo cultural en el centro histórico de Guadalajara (2014-2016) 

      Niño Gutiérrez, Naú Silverio; Hinojosa Cortes, Alejandro; Salgado Galarza, Agustín Carlos (Topofilia, Revista de Arquitectura, Urbanismo y Territorios, 2017-10)
      The central objective was to expose the current tourist use of the Historic Center of Guadalajara (CHG) by domestic and foreign tourists in the 2014-2016 biennium. The methodology used was qualitative and quantitative. The ...
    • Procesos rururbanos y seguridad en la vivienda tradicional 

      Ascencio López, Osvaldo; Jerónimo Vargas, Constantino; Romero Pérez, Francisco Javier (Observatorio del desarrollo, 2015-01)