23 articles in this issue
Margarita Tecpoyotl-Torres,José Gerardo Vera-Dimas,Miguel Angel Flores-Gonzalez,Rafael Vargas-Bernal
In this work the performance of a rectangular patch antenna with a rectangular ground plane is compared to the case where a circular one is used. For circular case, bigger gain and smaller bandwidth are observed. The comparison was also realized when defe... see more
Paloma Martínez Sánchez,José Luis Martínez,Judith Cavazos,José Pablo Nuño
Introduction: An improvement proposal is presented for reducing the service time for patients using the methodology of Lean Manufacturing in an emergency department at a clinic in Bogotá, which fails or exceeds the standard time established by the Distric... see more
K. Casas-García,L. A. Quezada Téllez,S. Carrillo-Moreno,J. J. Flores-Godoy,Guillermo Fernández Anaya
In this paper ten new chaotic nonlinear autonomous systems are presented. These systems were found by using the Monte Carlo method and they characterized by having one of their equilibrium points asymptotically stable. These new systems does not... see more
Alberto Pedro Lorandi Medina,Alfonso Cuauhtemoc García Reynoso,Enrique Ladrón de Guevara Durán,Alfonso García Portilla,Guillermo Hermida Saba,Pedro García Ramírez,Gerardo Mario Ortigoza Capetillo
An efficient method for single-plane rotor balancing which requires some components of the electric signal spectrum from each phase of the electric motor to which it is directly coupled is developed. The signal readings, which are scalar quantit... see more
Iliana Muñoz Palma,F. Brown,F. M. Vázquez-Paz,J. Marcazzó,E. Cruz-Zaragoza
In2TiO5 is a good insulator at room temperature because it has a band gap of 3.2 eV. The thermoluminescent properties of europium activated In2TiO5 are reported in this work. This material was prepared by conventional solid state reaction, and i... see more
Leonor Miranda Jiménez
Ovarian function can be altered by ciclooxigense enzyme inhibitors (COX). Piroxicam administration, a COX inhibitor, is an usual veterinary drug and it can alter the function of the ovaries.The aim of this research was to evaluate the intra and ... see more
Rosa Elena Pérez Sánchez,Ruy Ortiz-Rodríguez,José Luis Aguilar-Barrera,Juan José Valdéz-Alarcón,Daniel Val- Arreola,Juvenal Esquivel-Córdoba,Héctor Eduardo Martínez-Flores
Raw milk is one of the most important food for human consumption, particularly for small dairy farms who produce milk either self-consumption or to sell it to local artisanal cheese makers; due to the elevate risk of contamination by pathogenic ... see more
Jesús Valentín Gutiérrez García,Miriam Olvera España,Dante Arturo Rodríguez Trejo,Arnulfo Aldrete,David Cibrián Tovar,Cirilo Rodríguez Méndez,Salvador Castro Zavala
Introduction: A forest nursery must be provided with abundant water of good quality water. The water with low quality may contain salts, toxic ions, pollutants or diseases. However, in Mexico the quality of water in forest nurseries has received... see more
Juan Manuel Soto Parra,Francisco Javier Piña Ramírez,Esteban Sánchez Chávez,Ramona Pérez Leal,Moisés Basurto Sotelo
Introduction: Nitrogen is the nutrient most demanded by pecan rees, therefore, is a limiting factor for development, production and quality of the nut. However, given the increase in fertilizer prices and the effect of overuse of environmental p... see more
Introduction: Water scarcity and high cost of agricultural inputs are problems that can be alleviated by the application of technologies that increase crop yields and improve the fruit quality. Plant nutrition is essential to reach both, high yi... see more
Mirella Romero-Bastidas,Alejandra Nieto-Garibay,Luis Guillermo Hernández-Montiel,Enrique Troyo-Diéguez,Rogelio Ramírez-Serrano,Bernardo Murillo Amador
Worldwide the economic importance of basil (Ocimum basilicum L.) has prompted the search for strategies, such as seed conditioning in order to improve the indices of vigour of the plant with respect to improving yield, quality and tolerance to s... see more
José Abad Zavaleta,Ángel Ríos Utrera,Jorge Víctor Rosete Fernández,Alan García Camacho,Juan Prisciliano Zárate Martínez
In order to determine the prevalence of infectious bovine rhinotracheitis (IBR) and bovine viral diarrhea (BVD), through serologic analysis, in different seasons of the year and its influence on the reproductive status of adult bovine females, a... see more
Esteban Sánchez Chávez,Juan Manuel Ruiz,Luis Romero
Introduction: A wide range of environmental factors, such as lower temperature, drought, alkalinity, salinity, nutrient deficiency and toxicity stresses are potentially harmful to plants.The role of nitrogen as an essential nutrient and structural co... see more
Idalia Estefania Ponce Jaramillo,David Güemes Castorena
Introduction: Innovation is recognized as an essential activity for increasing competitiveness in a country. Etzkowitz defines a triple helix model for innovation process that describes the relationship between industry-academia-government inter... see more
Carlos Alberto Fuentes Pérez
Thermal environmental rating is the process by which the consequences of the implementation, expansion, modification or removal of activities and elements within the housing case study, to try and determine the corrective or precautionary measur... see more
Lorena Gertrudis Valle Chavarria,Reina Isabel Loredo Cansino,Carlos Eric Berumen Rodríguez
The archaeological site of El Tajin was the most important center of cultural influence of the Gulf of Mexico during the Epi-classic period. The Plaza del Arroyo is the oldest area of the holy city, which is mainly composed of the buildings 16, ... see more
Fernando Esteban García Llanos,Cristhian Aguilera,Pablo Catalán
During the last decades, Chile went through significant economic growth that resulted in social and economic welfare. However, such success is overshadowed by various factors, noticealby its current high income inequality, its excessive institut... see more
Omar Romero Arenas,Miguel Ángel Damián Huato,Dora María Sangerman Jarquín,Luis Reyes Muro,José Filomeno Conrado Parraguirre Lezama,Sergio Orozco Cirilo
Is exposed A technological model to increase the productive potential of rainfed maize with producers of San Nicolas de los Ranchos Puebla-Mexico. It was calculated the Index of Technology the Ownership Radicals (ITOR) and the Grade Progressive ... see more
Beatriz Olivia Camarena Gómez
Introduction. To propose strategies for education and communication on pesticides in the agricultural communities of Sonora, it is required to place the problem of exposure to pesticides in the socio-cultural and environmental context of the aff... see more
Mariano Adrian Ferretti
The construction of public encompasses a variety of dynamics that influence physical performance spaces where individuals act on their needs of living, changing reality from differentiation and singularization opinion of the environment that lea... see more
María del Carmen Torres-Salazar,Ana Esther Escalante-Ferrer,Elías Olivares-Benítez,Juan Carlos Pérez-García
Introduction: In this text statistical results of the relationship between managers with features green talent and implementing practices of green supply chain are presented. Because there research on the importance of vision High direction for ... see more
Venancio Cuevas Reyes
The objective of this research was to identify through field training, perception and knowledge of technological components related to feeding livestock with different types of producers in northern Sinaloa. Three groups of producers Ahome, El F... see more
Julio César Jiménez Castañeda
Introduction: Entrepreneurial orientation (EO) has been widely recognized in the strategic management field, because it represents a key factor to obtain a better performance. Entrepreneurial oriented firms are monitoring its environment, making... see more