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Slide 1 of 5 Publicación Acceso Abierto
Economic Optimization of Local Energy Markets: Strategies for Prosumers with IoT and Blockchain Integration
(2025-08-19) Medina Reyes, María Fernanda; Puertas Del Castillo, Edwin Alexander; Martínez Santos, Juan Carlos
This study explores strategies for optimizing local energy markets through analyzing representative prosumers data. Energy communities, which consist of local consumers and generators, offer a unique opportunity to maximize revenues and reduce costs in energy trading. We based the methodological approach on a dataset comprising energy production, consumption, and price data from 20 prosumers with distributed generation and energy storage capabilities. Two key strategies were analyzed: maximizing earnings from the sale of surplus energy by prioritizing transactions during periods of higher prices and minimizing purchasing costs by shifting consumption to periods of lower prices. The results demonstrate an average cost reduction of 18.62% and a considerable increase in revenues for prosumers, substantiating these strategies’ beneficial economic impact. The analysis integrates data collected by sensors connected through the Internet of Things, which allows for evaluating prosumers’ behavior and simulating scenarios designed to optimize their participation in the energy market. Furthermore, implementing smart contracts is key to facilitating transactions, guaranteeing transparency, and enhancing resource administration. This methodology, which is applicable in regions with considerable renewable potential, establishes the foundation for a transition to decentralized energy systems, thereby promoting economic advancement and environmental sustainability.
Slide 2 of 5 Publicación Acceso Abierto
Biogeochemical study of the periglacial slopes of the Nevado del Ruíz volcano (Colombia) as a terrestrial analog of Mars
(2025-08-16) M.A. Leal; D. Tovar; M.A. de Pablo; M.A. Bonilla; J. Bolaños; E. Ruíz; J. Sanchez; J. Buitrago; G. Leone; N. Tchegliakova; A. Molina; J. San Martín; Z. Chacón; X. Abrevaya; F. Vélez; A. Torres; R. Reyes; G. Cancino-Escalante; Acevedo Barrios, Rosa Leonor; Grupo de Investigación Estudios Químicos y Biológicos; Semillero de Investigación en Ciencias Ambientales
The Refugio sector of the Nevado del Ruiz Volcano, located in Colombia, has been the focus of multidisciplinary exploration aimed at understanding its geology, geochemistry, mineralogy, and microbiology, with the objective of evaluating its relevance as a potential terrestrial analog of astrobiological interest for Mars. Through detailed physicochemical analyses of soil samples, variability in properties such as pH, electrical conductivity, and nutrient content has been characterized, revealing the diversity of microenvironments within this volcanic region. Comparison with analog samples from Mars, taken from the ISAR collection, has highlighted significant differences in geochemical composition, particularly in MnO, Fe₂O₃, and SiO₂ content, underscoring the importance of Nevado del Ruiz as a key site for studying Martian geological processes. Furthermore, CRISM spectroscopy analyses have confirmed the presence of minerals similar to those found in Mawrth Vallis on Mars, further supporting the site’s validity as a terrestrial analog for planetary studies. Finally, the isolation of bacterial species identified as Klebsiella spallanzanii and Bacillus cereus, two oligotrophic and psychrophilic microorganisms, capable of phosphate solubilization and nitrogen fixation, found at Nevado del Ruiz support the development of biological models of astrobiological relevance. Together with the other findings, this evidence reinforces the importance of Nevado del Ruiz as a natural laboratory for astrobiology and space exploration, with the potential to provide information for future planetary exploration missions.
Slide 3 of 5 Publicación Acceso Abierto
Business performance, social networks, and workforce mental health in post-COVID-19 Barranquilla, Colombia
(IEEE Engineering Management Review, 2025-05-30) Sanmartin-Mendoza, Paul; Palacio Mier, Camilo Andres; Coronel, Brian; Villegas Sanchez, Luis Andres; Ahumada-Tello, Eduardo; Viloria Núñez, Cesar Augusto
—In the contemporary global business environment, the interaction between business performance and various social, technological, and health factors has intensified markedly. This study explores how mental health, specifically depression and anxiety, along with the socioeconomic impact of the COVID19 pandemic and the increasing use of social networks, influence business performance. The research is conducted in the metropolitan area of Barranquilla, Colombia, where Twitter data from 2020 was analyzed to assess sentiment trends related to workplace well-being. The findings suggest that mental health conditions and social network usage play a crucial role in shaping organizational resilience in a post-pandemic business landscape. The results highlight that while social networks can
enhance communication and market reach, they also reflect significant emotional distress among the workforce. These insights contribute to a better understanding of how companies in Barranquilla adapted to pandemic-induced disruptions and emphasize the need for organizations to implement strategies that support employee mental health while leveraging digital tools for business sustainability
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