Víctor Hugo Barrera
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View article: Undergraduate Research in the Andes: Overcoming Barriers to Developing-Country Farm-Household Focused Analysis
Undergraduate Research in the Andes: Overcoming Barriers to Developing-Country Farm-Household Focused Analysis Open
This paper provides a qualitative description of a long-term engagement of undergraduate students in an immersive research experience in Ecuador. We describe and analyze factors related to operation under common challenges to field researc…
View article: Nitrogen Management Can Increase Potato Yields and Food Security for Climate Change Adaptation in the Andean Region
Nitrogen Management Can Increase Potato Yields and Food Security for Climate Change Adaptation in the Andean Region Open
View article: Apoyando los Procesos de Aprendizaje del Lenguaje en Jóvenes en Situación de Discapacidad Cognitiva Mediante el Desarrollo de Aplicación Móvil Interactiva
Apoyando los Procesos de Aprendizaje del Lenguaje en Jóvenes en Situación de Discapacidad Cognitiva Mediante el Desarrollo de Aplicación Móvil Interactiva Open
The main purpose of this study is to support young people with cognitive disabilities in the process of learning the language and social skills of children, through the design and implementation of a mobile and interactive application, whi…
View article: Strategies to Strengthen Ecuador's High-Value Cacao Value Chain
Strategies to Strengthen Ecuador's High-Value Cacao Value Chain Open
Since the early nineteenth century, cacao has been an important export earner for Ecuador. Today the importance of this sector remains, as Ecuador is the main producer and exporter of Fine and Flavor cacao worldwide. Motivated by the main …
View article: Conservation agriculture can help the South American Andean region achieve food security
Conservation agriculture can help the South American Andean region achieve food security Open
The Andean region of Ecuador is dominated by small‐scale agriculture on steep slopes vulnerable to erosion, soil degradation, and subsequent productivity loss. Soil erosion rates exceed the average rate of soil formation by 9–286 times, ma…
View article: Characterization and Classification of Agricultural Production Systems in the Galapagos Islands (Ecuador)
Characterization and Classification of Agricultural Production Systems in the Galapagos Islands (Ecuador) Open
The low level of agricultural productivity within the production systems in the insular region of Galapagos is caused by the lack of sustainable technologies accordingly to the insular conservation regime. As a consequence, producers face …
View article: Política social y combate a la pobreza en México: Análisis de la Cartilla Social.
Política social y combate a la pobreza en México: Análisis de la Cartilla Social. Open
In this article we use unpublished and geo-referenced data at the municipality level on the beneficiaries of the main programs of the Ministry of Social Development who received the Social Book in 2016. The objective is to know national as…
View article: Promoting Behavioral Change Using Text Messages: A Case Study of Blackberry Farmers in Ecuador
Promoting Behavioral Change Using Text Messages: A Case Study of Blackberry Farmers in Ecuador Open
This study measures the effect of text message receipt on behavioral change by Ecuadorean blackberry farmers. We examine whether text messages affect knowledge about specific technologies or serve as reminders to farmers to employ practice…
View article: ¿Violenta y desordenada? Análisis de los repertorios de la protesta social en Colombia
¿Violenta y desordenada? Análisis de los repertorios de la protesta social en Colombia Open
El ciclo reciente de protestas sociales en Colombia ha puesto en el centro del debate la necesidad de emprender ajustes institucionales encaminados a brindar mayores garantías a un derecho fundamental que cada vez más ciudadanos están disp…
View article: Propagación de huecos de tensión: la influencia de transformadores, motores de inducción y resistencias de falla en relación con la propagación de huecos de tensión
Propagación de huecos de tensión: la influencia de transformadores, motores de inducción y resistencias de falla en relación con la propagación de huecos de tensión Open
En este artículo se presenta el análisis de la propagación de huecos de tensión utilizando como herramienta de simulación el ATPDraw y seleccionando como caso de prueba el IEEE 34 Node Test Feeder. Se tienen en cuenta tanto huecos de tensi…
View article: Causas y consecuencias del cambio climático en la agricultura
Causas y consecuencias del cambio climático en la agricultura Open