Desarrollo de un modelo espacio-temporal de la hidrodinámica y la temperatura de un cauce fluvial : caso de estudio río Fucha

La dificultad de adaptación y uso de modelos de calidad del agua desarrollados para otras regiones del mundo a las condiciones tropicales de típicas de Colombia motiva la iniciativa de desarrollar herramientas matemáticas propias para conocer y analizar el estado del recurso hídrico. Este trabajo es un primer paso en la construcción de modelos espaciotemporales de la calidad del agua, partiendo de la modelación en tiempo y espacio de la temperatura, y abordando como requisito para ello la dinámica hidrológica e hidráulica de un cauce urbano, en este Caso el Río Fucha de Bogotá.Utilization of water quality models, developed in northern conditions, in a tropical region as Colombia is often complicated and an unsuccessfully task. This situation motivates the initiative of developing proper mathematical tools to understand and analyze the state of local water resources. This document contents a work related to the construction of spatial- temporal water quality model, specifically focused on temperature space-time modeling, and as a requirement, dealing with an urban catchment hydrologic and hydraulic dynamics, in this case the Fucha river in Bogota.Magíster en HidrosistemasMaestrí

Roads of the Caribbean: regional analysis from Environmental Impact Assessments in Colombia

The road infrastructure produces several impacts on the environment. In the Colombian Caribbean region, the growing road infrastructure threatens systems equilibrium in diverse and not well-known ways. Despite the several administrative tools available in Colombian legislation to manage every project impact, the big picture of the interconnected regional ecosystems falls out of scope. To study the large-scale problems in landscape, we analyzed eight Environmental Impact Studies of road construction projects in the region. We did a scientific and institutional literature review to shed light on the possible unseen problems and future challenges. Results suggest that Environmental Impact Assessments for each project focus on construction processes, ignore accumulative and residual effects, and use typified measures to cover a broad set of impacts. We offer recommendations from an integrated analysis perspective for future projects to understand landscape and water systems alteration at the regional scale

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

ENGIU: Encuentro Nacional de Grupos de Investigación de UNIMINUTO.

El desarrollo del prototipo para el sistema de detección de Mina Antipersona (MAP), inicia desde el semillero ADSSOF perteneciente al programa de Administración en Seguridad y Salud en el trabajo de la UNIMINUTO, se realiza a partir de un detector de metales que emite una señal audible, que el usuario puede interpretar como aviso de presencia de un objeto metálico, en este caso una MAP. La señal audible se interpreta como un dato, como ese dato no es perceptible a 5 metros de distancia, se implementa el transmisor de Frecuencia Modulada FM por la facilidad de modulación y la escogencia de frecuencia de transmisión de acuerdo con las normas y resolución del Ministerio de Comunicaciones; de manera que esta sea la plataforma base para enviar los datos obtenidos a una frecuencia establecida. La idea es que el ser humano no explore zonas peligrosas y buscar la forma de crear un sistema que permita eliminar ese riesgo, por otro lado, buscar la facilidad de uso de elementos ya disponibles en el mercado