Tuning up Fuzzy Inference Systems by using optimization algorithms for the classification of solar flares

In this work we describe the implementation and analysis of different optimization algorithms used for finding the best set of parameters for a Fuzzy Inference System intended to classify solar flares. The parameters will be identified among a universe of possible solutions for the algorithms, and the system will be tested in the particular case of dealing with the aim of classifying the solar flares.Comment: 14 pages, 2 figures, 18 tables. Accepted for publication in TECCIENCI

Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2

The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality

Design and implementation of a development circuit board for LoRaWAN Nodes Applications

A partir de componentes disponibles en el Grupo de Investigación en Telecomunicaciones de la Universidad Distrital (GITUD) se plantea el diseño de una Placa de Circuito Impreso (PCB) que permita múltiples desarrollos sobre la tecnología LoRaWAN, partiendo del módulo iM880B-L del fabricante alemán IMSTBased on components available in the Telecommunications Research Group of the District University (GITUD), a Printed Circuit Board (PCB) was designed, to allow multiple developments on the LoRaWAN technology, starting from the iM880B-L module from the German manufacturer, IMST.Centro de Investigaciones y Desarrollo Cientifico de la Universidad Distrital (CIDC)Grupo de Investigación en Telecomunicaciones de la Universidad Distrital (GITUD

Libro de Proyectos Finales 2021 primer semestre

PregradoIngeniero CivilIngeniero de SistemasIngeniero ElectricistaIngeniero ElectrónicoIngeniero IndustrialIngeniero Mecánic