Centro de investigación en Mecatrónica y Sistemas Interactivos
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Adaptive Jamming Mitigation for Clustered Energy-Efficient LoRa-BLE Hybrid Wireless Sensor Networks

2025 , Carolina Del-Valle-Soto , Leonardo J. Valdivia , Ramiro Velázquez , José A. Del-Puerto-Flores , Varela Aldas, José , Paolo Visconti

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Simulation of the Flow Behavior in the Storage Tank of a Hydropower Using OpenFOAM

2024 , Roberto Salazar Achig , Víctor Hidalgo , Stalyn Simbaña , Jorge Gavilanes

The present research focused on the simulation of the storage tank of the Illuchi power plant, using OpenFOAM open source software. It began with photogrammetry by drone to survey the geometry of the water storage structure, then it was modeled by computer-aided design (CAD) software for export in STL file, thus being able to use the snappyHexMeshDict tool in the generation of the internal meshing of the flow in addition to the interFoam solver for incompressible fluids and the Reynolds Averaged Navier-Stokes (RANS) method to solve the equations of conservation of mass, energy and quantity of momentum in multiphase flow. By obtaining an optimal mesh of the geometry, it was possible to reproduce the turbulence with the k-ϵ RNG model, which approximately represented the phenomenon of turbulence in the tanks. ParaView and Gnuplot were used for the visualization and analysis of the results for their respective validation with experimental values. Finally, after 594 h of computer processing, global results of the reproduction of the phenomenon of the experimental part were obtained with an error of 5.44% in the numerical part for the Illuchi plant with respect to the measurement of flows at the outlets of the pressure pipes, obtaining flow characteristics that could be captured in the simulation

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The role of inhibitory control in the ability to solve problems of university students

2020 , Ramos Galarza, Carlos , Acosta-Rodas P. , Ortiz-Granja D. , Lepe-Martínez N. , Valle M.D. , Ramos V. , Bolaños-Pasquel, Mónica

The aim of the present study was to analyze the role of inhibitory control in the ability to solve problems of university students. The sample consisted of 90 young people with typical development (Mage= 20.58, SD= 1.27), 39 females (43.33%) and 51 males (56.7%). The Stroop and the Anillas' Test tasks were applied as instruments. As results, it was found a directly proportional and predictive relationship between inhibitory control and problem-solving of university students (correlation between: r= .34 and .47, p= <.01; prediction: r2= .14, F(1,88)= 13.88, p= <.01). It concludes by reflecting on the contribution of conscious control to solve problems faced by the university student on a day-to-day basis in an efficient way and invites future research in order to train inhibitory control. © 2020 Fundacion para la difusion neurologica en Ecuador - FUNDINE. All rights reserved.

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Organizational Culture and Digital Transformation: A Bibliometric Approach

2022 , Cruz Cárdenas, Jorge , Parra-Domínguez J. , Zabelina E. , Deyneka O. , Ramos Galarza, Carlos

Organizational culture is a key to the success of business digital-transformation initiatives. The current study presents a bibliometric approach to the current knowledge of culture and digital transformation. For this purpose, 407 relevant documents were analyzed. The descriptive analysis indicated a panorama of great growth in the literature. An analysis of word co-occurrence in titles and abstracts was used to identify four areas of research interest: (1) training and learning among personnel, (2) cultural values that underpin the digital transformation, (3) environmental influences, and (4) technologies that enable digital transformation. Finally, little international collaboration between author networks was found. © 2022 IEEE.

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Identification of Areas for Improvement in Digital Pedagogical Competencies through Information Technologies, Communication, and Artificial Intelligence: An Innovative Approach in Teacher Training

2025 , Paola Andrea Arciniegas García , Marcos Chacón-Castro , Elizabeth Durán Romero , Jose Gerardo Chacon Rangel , Jadán Guerrero, Janio

Technological advances pose challenges for teachers at different educational levels, where the application of ICT strategies requires training and strengthening of digital skills, so it is essential to constantly update teachers to improve teaching in the long term. Thus, the objective of this research is to identify the areas of improvement regarding the digital competencies of educators for the optimization of their teaching practices through a training program mediated by ICT. Regarding the applied methodology, it was carried out under a sample of 27 secondary education teachers by means of a descriptive non-experimental design through a complementary mixed method that was developed in four phases: a) characterization of the digital competencies of the trainers. B) design of the strategy and training in digital competencies. C) implementation of the training strategy. And d) evaluation of the strategy. Among the findings, 74% of the sample reached satisfactory levels with respect to the training program, affirming that training in digital competencies, based on instructional design and evaluation models, achieves positive results, presenting a significant improvement in the digital competencies of teachers.

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Cloud Computing Platforms to Improve Shuar Chicham Writing Skills

2024 , Quezada-Sarmiento, Pablo Alejandro , Patricia Marisol Chango-Cañaveral , Jadán Guerrero, Janio , Washikiat Pedro Tsere-Juma

Higher education through virtual environments is centered on the student, oriented towards interactive learning, in situations that are close to the real world, for which teachers require new communicative, non-verbal skills and an innovative approach to learning, which will accompany their students. Students in the complex process of acquiring even more knowledge of a non-native language. In the same context, the use of open-source technology platforms is becoming the best way to deliver solutions that meet the current need for the process of acquiring an ancestral language, so in this document we will focus on the analysis and use of Cloud Computing Tools as an alternative to complementary material to improve writing skills in the process of Second Language Acquisition (SLA) in our case Shuar Chicham. Likewise, teachers should not focus only on online learning but also on interaction with students as Gibson (1993) states; thus, innovative technologies must be means that help reduce the digital technological gap, allowing solutions, answers and agile questions to be given within the teaching-learning process, which is visible with the use of cloud computing tools. Therefore, using cloud computing tools it was proposed to demonstrate if writing skills can be improved in students who learned Shuar Chicham basic.

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Automated Music Composition Software Using Algorithms and Melodic Generators

2025 , Sebastian Garcia Surianu , Marcos Chacón-Castro , Martha Sánchez , Jadán Guerrero, Janio

This paper deals with the design and development of the software ‘AUTOMATIC COMPOSER’, a creative tool for the automated generation of polyphonic musical compositions. The problem statement focuses on the need to provide composers with an accessible and versatile tool for musical experimentation. The methodology employed includes the design of algorithms for melody generation, the development of an interactive user interface and the implementation of a system of melodic generators based on mathematical concepts. The main findings and results demonstrate the software’s ability to generate complex and varied scores, allowing users to control multiple aspects of the composition, such as articulations, dynamics, metric sequences, scales, rhythmic durations, instrumental ranges, melodic contours, rests, and metric mixtures. The main conclusion highlights the potential of the software as an innovative tool in the field of automated music composition, offering new creative possibilities for composers and musicians.

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Virtual Reality and User Experience: Current Trends and Future Challenges

2025 , Avilés-Castillo, Fátima , Buele, Jorge , Guillermo Palacios-Navarro

Virtual reality is an emerging and versatile technology that is gaining increasing interest from the scientific community, particularly regarding user experience. A review of the literature highlights the need for updated analyses that comprehensively address current trends in this field. The objective of this study is to analyze the evolution of scientific publications related to virtual reality and user experience, identifying trends, the most influential authors, relevant journals, and international collaborations, to provide a comprehensive overview. A bibliometric analysis was conducted using the Web of Science Core Collection database, identifying a total of 1,848 relevant publications. Network analysis techniques and Bradford’s law were applied, allowing for the examination of the distribution and impact of publications, as well as collaboration between authors and institutions. The results show an exponential growth in scientific output, particularly since 2019. While the United States leads in the number of publications, most of the influential authors are from Europe, with notable scientific output in Spain and Portugal. Current research hotspots include virtual reality applications in education and healthcare (over 70% of the analyzed publications), which align with Sustainable Development Goals, particularly 3 and 4. Trends indicate a shift towards integrating virtual reality with artificial intelligence, adaptive systems, and multisensory interaction to enhance immersion and usability. Challenges include a lack of standardized methodologies to assess immersion, presence, and cognitive load, which limits comparisons across studies and hinders the development of best practices. Future research should focus on refining interaction paradigms, improving accessibility, and developing ethical frameworks that respect data privacy and protect the user from cybersickness and the psychological effects of prolonged virtual reality exposure.

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Social Robots for Service Environments in Academia

2024 , Zapata, Mireya , Jorge Álvarez-Tello

The increase of social robots in services has generated academic interest in their design and development to enhance human-robot interaction across various contexts, from home assistance to educational and medical environments. Design criteria increasingly explore the software development aspect, but interdisciplinary focus on sustainability also pursues hardware improvement for human-robot interaction in contexts ranging from home assistance to medical environments. With this background, the research question arises: What key features should be considered for the development of a social robot in academia? A systematic metadata review according to PRISMA of 698 studies from the SCOPUS database was conducted, selecting 10 relevant ones to explore functions and applications that allow characterizing hardware and software in the design of social robots for development in academia. Preliminary results indicate a focus on creating smarter, safer, and more adaptable robots, utilizing advances in hardware and software such as flexible electronics and artificial intelligence. It is concluded that the balance between hardware and software proposes the prototyping of a robotic platform with LiDAR/ROS technology, flexible electronics, and ultralightweight material structure, for sustainable, low-power consumption, and low-cost developments. Collaboration among researchers, educators, and developers is crucial to create educational social robots that are both useful and accepted.

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Analysis and improvement of the web accessibility of a tele-rehabilitation platform for hip arthroplasty patients

2019 , Calle-Jimenez T. , Sanchez-Gordon S. , Rybarczyk Y. , Jadán Guerrero, Janio , Villarreal S. , Esparza W. , Acosta-Vargas P. , Guevara C. , Nunes I.L.

This paper explains some of the challenges that exist to make accessible the web interfaces of a Tele-rehabilitation platform for hip arthroplasty patients and propose an iterative method to improve the level of accessibility using automatic evaluation tools. Web accessibility is not concerned with the specific conditions of people who use the Web, but with the impact that their conditions have on their ability to use it. If the web interfaces of the Tele-rehabilitation platform for hip arthroplasty patients are not accessible enough, the patients will not be able to understand, perceive or operate adequately the platform to benefit completely of the physical therapy. The Web Content Accessibility Guidelines (WCAG 2.0) provides a set of rules and recommendations to help solve the problems of Web accessibility. Additionally, there are evaluation tools that allow identifying main web accessibility problems. These tools are best exploited when used by accessibility experts. The purpose of this research is threefold. First, to present the results of a web accessibility evaluation of the web interfaces of the Tele-rehabilitation Platform for Hip Arthroplasty Patients using three the evaluation tools: WAVE, AChecker and TAW. Second, to analyze the results presented by the tools according to the WCAG 2.0 guidelines to define a list of accessibility improvements. Third, to implement the improvements through the re-factorization of the existing code and re-testing the improved web interfaces to verify that they meet acceptable accessibility levels. © Springer International Publishing AG, part of Springer Nature 2019.

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