Minerva

Removal of chromium and copper from synthetic water samples using passion fruit peels

Yandry Adrian Santamaria Zambrano — 2024-10-04

In this work, modified passion fruit husk was used as biomass for the removal of chromium and copper present in the waters. PH, contact time, and particle size were considered experimental factors. Stirring speed, dosage, and temperature were considered constants. The results showed a 69% decrease in chromium using a pH 4, 90 min, and 300 μm composition. For copper, 74.4% was removed at pH 4, with 120 min and 300 μm, based on initial concentrations of 30 ppm for both metals. The results showed that passion fruit peel is a potential effective removal agent for chromium and copper in synthetic waters. This supports its possible application in the purification of metal-contaminated water, which could contribute to environmental protection.

Proactive strategies to mitigate emerging cybersecurity risks in IoT devices for smart homes

Kevin Garcia Perez — 2024-10-04

This work proposes strategies to mitigate emerging risks in smart Internet of Things (IoT) devices within homes. With the significant increase in these devices, cybersecurity became a primary concern. Therefore, this study focused on identifying potential risks and vulnerabilities, using surveys to assess current security practices and knowledge about protective measures among other aspects related to cybersecurity. Based on these results, recommendations were made for users, to strengthen security in their IoT devices and promote good practices to create a safer and more protected home environment against possible cyber threats.

Study and simulation of the coordination of electrical protections

Luis Franklin Casa Chancusig — 2024-10-05

In this work, an analysis of the coordination of protections of an electrical system is carried out. To do this, the ETAP software is used, which allows the modeling of each element from the single-line diagram of the electrical system. The initial conditions associated with the load level of the elements and lines due to the presence of loads at nominal values are defined. Next, a failure analysis is developed, to carry out a protection coordination study later, defining failure scenarios in different bars of the system, as well as the performance characteristics of the protections. Finally, a technical-economic analysis is carried out, considering historical data on energy consumption by the industrial plant.

Current approaches to meaningful learning that complement the construction of knowledge in the process of reading comprehension

Jaqueline Llive — 2024-10-05

Analysis of the return to face-to-face teaching and administrative staff within the Faculty of Administrative Sciences

Maria Jose Munoz Vasconez — 2024-10-05

The research was carried out within the framework of the analysis of the return to face-to-face teaching and administrative staff within the Faculty of Administrative Sciences of the Technical University of Ambato. The research contemplates the perspective against the return to face-to-face activities. Likewise, the research deals with the factors that condition the return to attendance. Biosafety regulations that aim to create a safe space for the development of academic activities. The emotional impact caused by the pandemic on the university community and how it is reflected in the learning process. The administrative and teaching staff are characterized by the new face-to-face topics on mental health and the risks and challenges they must face. During the new presence, it is important to talk about the personal, psychosocial, and psychological factors that favor the work environment of the administrative, teaching, and service staff of the faculty.

Study of the effects of glyphosate residues in food by immunochemical ELISA: a preliminary review.

Michelle Cevallos — 2024-10-05

Glyphosate, a widely used herbicide, has raised concerns due to its potential health risks and its presence in various food products. The analysis highlights the importance of monitoring these residues to ensure food safety and comply with relevant regulations. The ELISA technique is explained in detail, including its principles and benefits compared to other analytical methodologies. ELISA's sensitivity and specificity in detecting minimal glyphosate levels in complex food matrices are addressed. The report also examines comparative research on alternative detection methods and investigates the potential health impacts of chronic glyphosate exposure. It concludes by highlighting the essential role of ELISA in monitoring glyphosate residues and advocates for ongoing research to refine detection methods and deepen our understanding of glyphosate's effects on health.

Humanized childbirth: contributions from sociology

Gisela Yupangui — 2024-10-05

En este estudio se analizó la percepción del personal de enfermería sobre el parto humanizado actualmente. Se realizó una investigación con diseño cualitativo con enfoque fenomenológico exploratorio, con un muestreo propositivo incluyendo a personal del área de maternidad y centro obstétrico. Se aplicó el criterio de saturación de información. Para la recolección de información se utilizaron guías de entrevistas semiestructuradas. El análisis se realizó en base a la teoría fundamentada, consiguiendo cinco categorías: percepción, promoción, conocimiento, factores, derechos sexuales y reproductivos. Los principales resultados muestran que el parto humanizado dejó de practicarse durante la pandemia por razones de temor de contagio y que está siendo retomado desde el año 2022. Finalmente se debe tener en cuenta que el parto humanizado es la mejor opción para las madres, ya que ayuda en la recuperación de la madre y en el bienestar del bebé, pero los centros de salud deben tener la preparación y empatía para atender a las pacientes apropiadamente.

Effects of climate anomalies on the soil-atmosphere interaction model and its convergence with conventional climate models

Mara Girón — 2024-10-06

The application of the Determination of the Effect of Climate Anomalies on Soil-Atmosphere Interaction (DECASAI) model is described, which allows estimating the water evaporation over bodies of water and soils, based on a thermodynamic and kinetic approach. The model studies seasonal climate anomalies with emphasis on prolonged droughts (ENSO), to predict the vulnerability of selected water bodies, in their hydraulic and pluvial aspects. The model is integrated into the Biotic Pump Theories, evapotranspiration, and other conventional models such as Orchidee using the new absent information provided by the model in their calculations. The analysis estimated the critical radius of the condensed water droplets, for application in the conventional models. The proposed model is sufficiently robust and complementary for use in certain localities located in the Hadley cells, depending on their continentality.

Methodological proposal for the implementation of Emancipatory Education in Ecuador

Alex Mauricio Alvarez Zurita — 2024-11-10

This paper proposes a methodology to implement the principles of emancipatory education, based on the Pedagogy of the Oppressed by Paulo Freire and other theorists, in the Ecuadorian educational context. The main focus is to propose the strategy and teacher training to promote students' critical thinking and active participation, preparing them to contribute to the transformation of their environment. The results show that a methodological proposal must address economic constraints and limited access to digital resources, promoting critical analysis of social realities and transformative action through dialogue, reflection, and collaborative work.