AT for Engineering Applications -- Low Cycle Fatigue in Welded Reinforcing Steel Bars.-Spirometer with automatic disinfection -- Nonlinear behavior of Steel frames with concentric and eccentric bracing -- Tensile strength PLA reinforced with perolera pineapple fiber comparison, based on the reinforcement fiber direction -- Evaluation of horizontal and vertical positions obtained from an unmanned aircraft vehicle applied to large scale cartography of infrastructure loss due to the earthquake of April 2016 in Ecuador -- Masonry reinforcement using cabuya fiber and perimetral electro-welded mesh -- Evaluation of the seismic vulnerability of the Huachi Chico parish in Ecuador -- Proposal for a unique Cartographic Projection System for the Galapagos Islands in order to generate cartography at large scales -- Prioritization of a micro-basin of the Daule river sub-basin with strong erosional problems and their effect to the turbidity of the waterin the city of Guayaquil, coastal Ecuador -- Water, sanitation and socioeconomic situation in two communities in the Cayapas river, Ecuador -- Application of Ecuadorian ferrotitaniferous sands in reinforcing epoxy composites -- Behavior of influencing parameters of the Fused Deposition Modeling process in dissimilar combinations: polymer-3D printer -- Bamboo Cellulose Textile Filament "Angustifolia" Floating Root Resin -- Development of a settlementmeter for the control and monitoring of embankments through the use of artificial intelligence -- Removal of arsenic and heavy metals from contaminated water with emerging sorbents -- Implementation of the CAESAR-Lisflood cellular automated landscape evolution model to determine possible flood areas in the Portoviejo river sub-basin, Coastal Ecuador -- Exergetic analysis of reheating and regeneration alternatives in steam cycles for the generation of electricity from municipal solid waste -- Water qualityand dynamic time series based on meteorological variables at the Muisne station located in the Bunche enclosure, Esmeraldas, Ecuador -- Electronics -- An electronic equipment for monitoring, detection and warning of pitch motion of vehicle drivers -- Pose Estimation for Nonlinear Visual Servo Control of an Omnidirectional Platform -- Design of a Model Based Predictive Control (MPC) Strategy for a Desalination Plant in a Hardware in the Loop (HIL) Environment -- Modeling of a Robotic Arm for the Appli-cation of Welding Processes -- Passive Positioning of Autonomous Underwater Vehicles -- Hybrid Storage System based on Rectenna and Photovoltaic Cells for Low Power IoT Wireless Devices -- Design and construction of an anthropomorphic robotic head with gestural projection -- Energy harvesting: energy sources, excitation type and conversion mechanisms -- Experimental study of a flat solar collector with thermal energy storage, applying improvements based on bibliometric review and CAD simulation -- Implementation of PID and MPC controllers for a quadruple tank process in a 3D virtual system, using the hardware in the loop technique -- Advanced Control Algorithms for a Horizontal Three-Phase Separator in a Hardware in the Loop Simulation Environment -- Appropriate technology for solar thermal desalination by concentration applied the humidification-dehumidification method -- Practical Framework for Optimal Planning of Microgrids for Production Processes -- Knowledge Exploration in Life Sciences -- Impacto de la asociación quinua (Chenopodium quinoa Willd) haba (Vicia faba L.) en la producción agrícola, fijación biológica y reciclaje de Nitrógeno -- Evaluation of the environmental impacts generated by the management of urban solid waste in the open waste dump in Loreto, Eastern Ecuador -- Spatial and temporal distribution of salinity levels and macronutrients of soils after the construction of dams on tropical dry forest -- The importance of epigenetics in leukemia.