24 articles in this issue
Héctor Vázquez Leal,K. Boubaker,A. Marin-Hernandez,J. Huerta-Chua
In this paper, two approximate solutions of HIV-1 infection dynamics model with cure rate are presented. The proposed solutions are obtained using homotopy perturbation method (HPM) and Boubaker Polynomials expansion scheme (BPES). A comparison of obtaine... see more
Rogelio Rodríguez González,J. C. Marti´nez-Orozco,J. Madrigal-Melchor,I. Rodri´guez-Vargas
In this work we use the transfer matrix method to study the tunneling of Dirac electrons through aperiodic monolayer graphene superlattices. We consider a graphene sheet deposited on top of slabs of Silicon-Oxide (SiO2) and Silicon-Carbide (SiC) substrate... see more
Fanny Hernández Mendoza,Guillermo Carrillo-Castañeda,Martha E. Pedraza-Santos,Eulogio de la Cruz-Torres,Ma. del Carmen Mendoza-Castillo
Tuberose (Polianthes tuberosa L.) is a plant endemic to Mexico, commercially grown for cut flower, and is also used in pharmaceutical and perfume industries. Traditionally, producers propagate this plant using corms, being this cause of the present little... see more
Mauricio González Avilés,H. Servín Campuzano
Paper presents of some aspects of thermal physics necessary for the development of small-scale solar cookers by developing a computational semi-empirical thermal model. The free parameters of the models are adjusted with data obtained from an experimental... see more
Raúl Miranda-Avilés,María Jesús Puy-Alquiza,Yanmei Li
This paper presents a method to identify mine tailings in sediments and / or soils through digital image analysis and shape parameters of quartz. The method was applied to tailings, natural and anthropogenic sediments from the Guanajuato Mining District. ... see more
Iván Interiano Zapata,Carlos Manuel Bucio Villalobos,Manuel D. Salas Araiza,Eduardo Salazar Solís,Oscar A. Martínez Jaime,Robert Wallace Jones
The contribution of Apis mellifera L. and Chrysoperla carnea S. as strawberry pollinators were evaluated using primary flowers of the Festival cultivar from Irapuato, Guanajuato, Mexico. The treatments were: self-fertilizing (SF), open pollination (OP), A... see more
David Güemes-Castorena,Gonzalo Uscanga Castillo
One of the most critical decisions during the early stage of the technologies is how to select what project should receive further funds and resources for its development. Within this context, some challenging questions need to be solved: what are the var... see more
José Luis Cendejas Valdéz,Carlos Arturo Vega Lebrún,Anayansi Careta Isordia,Osvaldo Gutiérrez Sánchez,Heberto Ferreira Medina
The information technology is the means to achieve innovation in production processes. Software plays an important role in achieving economic growth in any region. Nowadays the main problem in the development of custom software to generate applications is... see more
Dustin Samudio,Pablo Weigandt,Jaime Toral B,Oscar Sotolongo-Costa
In this study the distribution of seismic magnitudes of three different catalogs in the Isthmus of Panama, are compared. The Sotolongo -Posadas (S-P) law of energy distribution of earthquakes is used to adjust them. A good fit with data is observed when c... see more
Dulce Violeta García-Bonilla,Juan de Dios Guerrero-Rodríguez,Gabino García-de los Santos,Sergio Alberto Lagunes-Rivera
In Mexico the most widely used forage legumes for temperate climate are alfalfa and clovers, although they have good nutritional characteristics, they are not adapted to all soil types, and climates; additionally they have medium to high water demand and ... see more
Cirilo Gabino León Vega,Mohamed Badaoui,Luis Alejandro Iturri Hinojosa
A performance analysis of single-pole single-throw (SPST) compound microwave switches designed with bulk-type p-i-n diodes of different kinds of semiconductor materials for the Ku and Ka frequency band is presented. The two most common compound switch con... see more
Javier Ramón Sotomayor Castellanos
The architectural typologies found in the context of the structural analysis of constructions with historical and cultural meaning, are complex. Numeric modeling is proposed as a solution to diagnose the structural safety of the edifices. In this research... see more
M. A. Eslava Gutiérrez,S. Vidal Beltrán,José Luis López Bonilla
This work shows the development and implementation of a software tool in order to predict the signal electromagnetic propagation in third generation mobile communication systems through the usage of three propagation models: (Okumura-Hata, Cost Walfish-Ik... see more
Rubén Salvador Roux Gutiérrez,Víctor Manuel García Izaguirre,José Adán Espuna Mujica
The present work is result of researches developed from the experimentation of alternative building materials, especially about te use of dirt compressed blocks (BTC in spanish), which have been stabilized with lime hydroxide and cement, trying to be acco... see more
Jesús García Maceda,Angel Bustamante González,Samuel Vargas López,Juan de Dios Guerrero Rodríguez,José Isabel Olvera Hernández
San Felipe Oltaltepec, a Popoloca indigenous community of Puebla State, Mexico, has a territorial organization in sections. Urban and agricultural land appropriation has depended upon this delimitation. The conceptualization of the early and present secti... see more
Francois Duhamel,Jorge Alberto Durán Encalada
Introduction: The purpose of this article is to analyze the relationship between the type of logistics services required, supply chain priorities and performance for freight management in terms of cost and service. The study develops two hypotheses in thi... see more
María Lourdes Guevara Romero,Ramos Montalvo Vargas
The integral development and the management of natural resources and the environment represent one of the central concerns of development in recent years. Changes in land use and vegetation are the best indicators of how this has seized the environment, i... see more
Martín Alberto Rodríguez Brindis
Tourism is an economic activity that is considered increasingly important to generate economic growth and combat poverty. However, the relationship between tourism and economic growth is still not as clear. This paper presents the methodology proposed by ... see more
María Cristina López de la Madrid,Adolfo Espinoza de los Monteros Cárdenas,Diana Rojo Morales,Katiuzka Flores Guerrero,Alberto Rojas García
Introduction: When entering to higher education, both, parents and students have a basic idea of the costs to be covered in the coming years; however, most will have needs that were not contemplated, which can generate economic imbalance in the family bud... see more
Jesús Rubio Campos
The objective of this research is to analyze the child care challenges faced by working mothers in the maquiladora industry and the strategies they use to combine their worlds of work and the family, through a qualitative research methodology, using a cas... see more
Eric González Rodríguez,Juan Baldemar Garza Villegas
This study focuses on the use of Net Promoter Index developed by Frederik Reichheld and consulting firm Bain & Company, as a tool to know the perception of customers about the service they receive from their suppliers, this tool is an alternative to model... see more
Elizabeth de la Torre Romero,Carlos Martner,Eric Moreno Quintero,José Luis Martínez,Elías Olivares Benítez
Introduction: In Mexico theft has become one of the most significant risks to the efficiency and competitiveness of supply chains. This proposal aims to identify the variables that influence the risk of theft in trucking transportation as a preliminary st... see more
Aurora Máynez Guaderrama,Judith Cavazos Arroyo
In the recent past, Mexican non-profit organizations have seen an increase in size and importance; nevertheless, research efforts in them are scarce. The retention of their human talent is mainly linked with intrinsic objectives; consequently, it is relev... see more
Carlos Alberto Fuentes Pérez
Of all the climatic changes caused by urban cities, thermal changes are best known by the citizens. The study of the transformation on the natural spaces of the city shows that it has great production value thanks to its environmental conditions, and its ... see more