Introduction: this article focused on the management of siltation in the La Estancilla dam in Manabí, Ecuador. It highlights how one of the emerging technologies can help reduce risks to infrastructure and water resources, mitigating siltation.Objective: the impact of siltation on the dam was analyzed using AutoCAD Civil 3D software, and how emerging technologies contribute to the management and monitoring of sedimentation was also explored.Methods: an applied research was conducted, adopting a descriptive and quantitative approach. In situ data was collected using GPS and total station, as well as three-dimensional simulations using AutoCAD Civil 3D to model the evolution of siltation. Additionally, a systematic review of the scientific literature was carried out by selecting 20 relevant articles to identify how emerging technologies can improve the monitoring and mitigation process of sedimentation.Results: the results showed a 45.06% decrease in the active capacity of the reservoir by the end of 2024 and a possible full saturation of more than 100% by 2042, emphasizing the urgent need to implement more advanced technologies. Simulations and the systematic review demonstrated that the use of drones and predictive models can significantly improve accuracy and efficiency in sediment management.Conclusions: The implementation of emerging technologies could ensure the long-term functionality and sustainability of the reservoir, optimizing siltation mitigation strategies and reducing dependence on conventional methods like dredging

The purpose of the present investigation was to determine the behavior correction coefficient of the characteristics of the centrifugal pump load curves, using mathematical models, taking into account the rheological properties. From experimental studies such as X-ray diffraction, X-ray fluorescence, particle size analyzer, rheological analysis and mathematical modeling we obtain the behaviors of the physical and chemical interactions that take place in non-Newtonian fluids. It is concluded that to obtain a mathematical model of the correction coefficient and the equations describing the behavior of the characteristic load - discharge curves of the networks and of the pumps to, by means of the joint analysis of these, obtain the frequency of rotation of the impeller that guarantees the required flow rates in energy efficient operating regimes.

Introduction: wastewater treatment for irrigation is a pressing challenge in rural areas, especially in communities where agriculture depends on contaminated water sources. This study focused on developing a low-cost, sustainable technology tailored to the needs of vulnerable populations.Methods: the efficiency of a combined treatment using lime and water hyacinth (Eichhornia crassipes) was evaluated in Joa, Ecuador. A completely randomized experimental design was employed to assess changes in key physicochemical parameters, including electrical conductivity, hardness, pH, nitrates, and sulfates, before and after the treatments.Results: water hyacinth reduced water hardness significantly, from 218 mg/L to 154 mg/L of CaCO₃, while lime controlled pH, maintaining it near neutral (7,4) with precise dosing. Despite these improvements, the combination showed limitations in reducing nitrates and sulfates to meet local regulatory standards. Nevertheless, the treatments enhanced overall water quality, making it more suitable for agricultural purposes.Conclusions: the combined use of lime and water hyacinth represents a feasible, eco-friendly solution for treating agricultural wastewater in resource-constrained settings. While effective in improving water quality, further studies are needed to optimize the system, explore scalability, and evaluate its long-term impact on soil and crop productivity

Este estudio evalúa la viabilidad económica de tres proyectos hidráulicos en Ecuador, considerando tanto los costos como los beneficios a corto y largo plazo. Los proyectos seleccionados fueron el Sistema de Riego Chambo-Guano, el Proyecto Multipropósito Chone y la Planta de Tratamiento de Aguas Residuales Quitumbe. A través de un análisis costo-beneficio (ACB), se emplearon los indicadores de Valor Presente Neto (VPN) y Tasa Interna de Retorno (TIR), con datos obtenidos de informes técnicos gubernamentales y entrevistas a los responsables de los proyectos. Los resultados muestran que el Sistema de Riego Chambo-Guano presentó una TIR del 12.5%, destacando su rápida rentabilidad, mientras que el Proyecto Multipropósito Chone obtuvo el VPN más alto, con 25.8 millones de USD, debido a sus múltiples beneficios, como el control de inundaciones y el riego agrícola. Por su parte, la Planta de Tratamiento de Aguas Residuales Quitumbe, aunque con una TIR más baja (7.5%), demostró beneficios significativos a largo plazo en términos de salud pública y mejora de la calidad del agua. Los resultados indican que todos los proyectos son económicamente viables, pero su sostenibilidad a largo plazo requiere una evaluación integral que contemple también los impactos sociales y ambientales. Se recomienda priorizar proyectos multipropósito y de riego tecnificado en áreas vulnerables, alineados con los Objetivos de Desarrollo Sostenible (ODS).

This study evaluates the impact of technological tools such as Duolingo and Kahoot on the development of linguistic competencies in foreign language students at the State University of South Manabí. Introduction: the integration of digital technologies in education has transformed traditional methodologies, yet challenges remain in their implementation across educational contexts. Objective: to determine how these platforms enhance grammar, listening comprehension, and oral expression skills compared to traditional methods. Methods: an experimental design was used with 120 students divided into three groups: a control group with traditional methodology and two experimental groups using Duolingo and Kahoot, respectively. Kruskal-Wallis tests and post hoc analyses were applied to identify significant differences. Results: Duolingo proved effective in grammar and listening comprehension, while Kahoot excelled in improving oral expression. The experimental groups significantly outperformed the control group in all evaluated competencies. Conclusions: the use of educational technologies like Duolingo and Kahoot significantly improves linguistic competencies and represents a replicable strategy for challenging educational contexts.