14 articles in this issue
Sheila Serrano Vincenti
Editorial
Karina Cervantes de la Cruz, Isabel Mejía-Luna, Donovan Omar Villanueva Pineda, Marìa Colín-García, Alejandro Heredia
The chemical processes occurred during the first years of the evolution of the planet Earth, before the presence ofcellular forms, have been continuous reason of studies at experimental level in many laboratories. Considering somepossible prebiotic enviro... see more
Diana Patricia Bustamante
The present study was realized in the Province of Chimborazo-equator by the intention of establishing a scene ofclimate change for the year 2050, in order to implement public policies in the Plan of Development and TerritorialClassification that they help... see more
María José GRANDA, PATRICIO YANEZ-MORETTA
This study explores issues related to the conservation of native forests of western Ecuador’s Amazon region (provincesof Napo, Pastaza and Morona Santiago) and its relationship with some social and economic variables, the forestswere included or not to th... see more
Luis Alberto Valdés, Diana Lucía Calero Consuegra, Adys Gómez, María Elena Carballo, Maricela Capote, Ingrid González, José Miguel Alvarez, W. Rohde
Anthracnose is considered the main fungal disease affects mango. Cause considerable damage to leave, flowers andfruits. The filamentous fungi of the genus Colletotrichum and its teleomorph Glomerella pathogens are considered themost widely distributed pla... see more
Sebastian Gonzalo Yanez Segovia, Valdano Tafur, Lenin Rosero
It is of great importance to maintain the genetic diversity of traditional materials and wild plants. The Emilia applegermplasm was safeguarded, using in vitro tissue culture techniques. Two culture media and six concentrationswere evaluated for disinfect... see more
Lenin Javier Ramirez Cando, Santiago Guerra, Gabriela Reinoso
In order to mitigate the environmental impacts caused by lead in wastewater from sectors such as: mining, petrochemical,metallurgical and others, an in vitro evaluation of lead removal using Photobacterium damselae was carriedout. Considering isolation an... see more
Mario Vicente Cabrera Vallejo, Ana Mejía-Lopez, Yurina Carillo
In the community of Pulinguí belonging to the parish of San Andrés del canton Guano province of Chimborazo-Ecuador, domestic sewage is treated in a system of septic tanks and upward filter, which presents problems of badsmell and low reduction of organic ... see more
Alejandra Mora Cervetto, Matha Natalia Molina Moreira
This study was performed in Parque Historico Guayaquil (PHG), to diagnose waste management practices undertakenin said establishment. It was accomplished through the characterization of waste generation, verification of its managementaccording to environm... see more
Myriam Ximena Mancheno Cárdenas, Pablo Arévalo, Jhison Romero, Inés Malo, Damian Matute, Ricardo Ramos
Analysis of the pyrolytic fuel (liquid fuels obtained from the pyrolysis process of used tires), the physicochemicalcharacteristics correspond to gasoline, kerosene and diesel fractions. To determine the environmental sustainabilityof its use, combustion ... see more
Orlando Roberto Quinteros Pozo, Julio Cesar Vargas Burgos, Ivana Barbona, Pablo Roberto Manrini
The aim of this study was to evaluate the energy-blood protein metabolism in dairy cows four genotypes first lactationunder grazing in Canton Arosemena Tola, Napo, Ecuador. 36 dairy cows in first parity crosses of the genotypes wereevaluated: Bos Indicus ... see more
Byron Humberto Puga Torres, Adriana Vásconez-Hernández, Patricio Sandoval-Valencia, Francisco De La Cueva-Jácome
Enzootic Bovine Leukemia is a viral disease that can manifest itself by the presence of tumors or asymptomaticallyin cattle of any age category. Its socioeconomic significance lies in the decline in milk productivity, reproductive losses,forfeitures in ab... see more
Charles Jim Cachipuendo-Ulcuango, Narcisa De Jesus Requelme, Orlando Marcelo Gualavisí Cachiguango, Catalina Elizabeth Sandoval Montenegro, Jorge Luis Sandoval Cuascota, Alexandra Carolina Moya Mejia
Milk livestock is the main system of production of the Andean communities of the Ecuador. Feeding of the animals isbased with pastures, that every day is more difficult by the division of the lands "minifundios.and changes in rainfallcycles. However, to m... see more
Francisco Adolfo Gutiérrez León, David Guachamin, Arnulfo Portilla
The pigs’ diet can be diverse, based on feed, kitchen waste, and crops’waste, which can be seen as an opportunity ifknown how to use this alternative feeding mechanism for this specie. In Ecuador various crops are produced and theirwaste can be used in pi... see more