Buscador de Tesis y publicaciones académicas

Arteria coronaria única: un desafío clínico silencioso

José M. Rozo-Vanstrahlen · Lithey C. Poveda-Conde · Fernando Ortiz-Duarte

Accuracy is not certainty: using model agreement and human judgment to assess spatial uncertainty in high-resolution mangrove mapping

K M Ashraful Islam · John B Kilbride · Paulo J Murillo-Sandoval · Robert E Kennedy

Abstract Environmental monitoring increasingly relies on wall-to-wall maps derived from remote sensing and machine learning for decisions, yet high map classification accuracy does not necessarily imply reliable knowledge across space. Here, we utilize a relatively simple classification scenario to examine how probabil...

Bounded variation space and the Nemytskii operator

René Erlín Castillo · Héctor Camilo Chaparro

In this paper, we give an overview on the basic properties of functions of bounded variation. We present a new proof of a type Riesz result for functions of bounded variation. Also, we show that if the Nemytskii operator maps the bounded variation space into itself and satisfies some Lipschitz condition, then there are...

ANÁLISIS DE VULNERABILIDADES A IMPLEMENTACIONES "TÍPICAS COLOMBIANAS" DE TELEFONÍA IP.

Leonardo Fabio, Sandoval Lozano · Fernando, Avila Berrio

This undergraduate degree project analyzes security vulnerabilities affecting typical Voice over Internet Protocol implementations, with particular emphasis on Asterisk-based systems used by small and medium-sized organizations. The study identifies relevant attack vectors, evaluates them using the Common Vulnerability...

Historia del Arte Colombiano: Capítulo 1 - Fundamentación pedagógica

OROZCO BENAVIDES, YOBANA

¿Por qué enseñar primero la historia del arte universal si muchos estudiantes desconocen el arte de su propio país? Esta pregunta transformó el rumbo de una investigación de cuatro años y dio origen a Historia del Arte Colombiano, una obra que integra el rigor histórico con la práctica pedagógica, la educación emociona...

Differential Pulse Voltammetric Analysis of Cannabidiol on Fluorine-Doped Tin Oxide (FTO) Electrode Interface: Quantification in Pharmaceutical Oil with Assessment of Electrode Surface Stability

Mario Romero · Eliana Rocha Fontalvo · María L. Ospina-Castro · Victoria A. Arana · y 3 más

This work presents the use of an unmodified fluorine-doped tin oxide (FTO) electrode as an electrochemical sensor for the stable and highly reproducible detection of cannabidiol (CBD) in an oral pharmaceutical formulation (CBD-OS). This was achieved using an electrochemical methodology with 0.1 M LiClO4 in acetonitrile...

Fundamentos de la programacion en la ingenieria en mantenimiento

Mantilla-Chávez, Santiago

Descriptive Analysis of Genetic Variants in Individuals Without a Clinical Diagnosis of Alzheimer’s Disease in a Population from Southwestern Colombia

Liliana Doza Martinez · Helen Johana Ortiz Rojas · Jorge Hernán Izquierdo Loaiza · Daniela Arturo Terranova · y 2 más

Introduction: Alzheimer's Disease (AD) is the most common cause of dementia worldwide and a chronic neurodegenerative disorder with well-established pathophysiological mechanisms. In Colombia, its prevalence is increasing, but in the southwestern region, information on its clinical course is scarce, limiting adequate c...

Search for displaced decays of long-lived particles in events with missing transverse momentum in $$ \sqrt{s}=13 $$ TeV pp collisions with the ATLAS detector

Aad, Georges · Aakvaag, Erlend · Abbott, Braden Keim · Abdelhameed, Sara · y 196 más

A bstract A search for long-lived particles in events with significant missing transverse momentum and at least one displaced vertex is presented. This analysis is performed using 137 fb −1 of pp collision data collected between 2016–2018 during Run 2 of the Large Hadron Collider by the ATLAS detector. Displaced vertic...

Extreme weather events and vector-borne diseases: Quantifying the epidemiological effect of Hurricane Julia on malaria transmission in Colombia

Juan David Gutiérrez

Extreme climatic events, such as hurricanes, are known drivers of vector-borne disease outbreaks; however, quantifying their causal effect remains challenging due to complex spatio-temporal dynamics and unobserved confounders. This study estimates the causal effect of Hurricane Julia (October 2022) on malaria cases in...