Jorge Julián Vélez Upegui

ORCID: 0000-0003-3856-1105
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About
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Research Areas
  • Hydrology and Watershed Management Studies
  • Water Resource Management and Quality
  • Environmental and Ecological Studies
  • Hydrological Forecasting Using AI
  • Regional Development and Innovation
  • Flood Risk Assessment and Management
  • Water resources management and optimization
  • Hydrology and Sediment Transport Processes
  • Sarcoidosis and Beryllium Toxicity Research
  • Precipitation Measurement and Analysis
  • Agricultural and Food Production Studies
  • Orthopedic Infections and Treatments
  • Plant Water Relations and Carbon Dynamics
  • Geological and Tectonic Studies in Latin America
  • Meteorological Phenomena and Simulations
  • Landslides and related hazards
  • Hydrology and Drought Analysis
  • Climate change impacts on agriculture
  • Water-Energy-Food Nexus Studies
  • Advanced Computational Techniques and Applications
  • Climate variability and models
  • Environmental Monitoring and Data Management
  • Diagnosis and treatment of tuberculosis
  • Economic and Social Development
  • Long-Term Effects of COVID-19

VA Caribbean Healthcare System
2025

Hospital de Especialidades
2022-2024

Universidad Nacional de Colombia
2014-2023

Centro Hospitalar do Baixo Vouga
2012-2023

University Health System
2022

Central University of Ecuador
2017-2019

Universitat Politècnica de València
2009

University of Chile
2009

ObjectiveTo characterize the profile of non-AIDS-related comorbidities (NARC) in older HIV-1-infected population and to explore factors associated with multiple NARC.MethodsThis was a multicentre, cross-sectional study including patients aged ≥50 years, who were virologically suppressed had been on stable antiretroviral therapy (ART) regimen for at least 6 months. A regression model explored association between demographic clinical variables number NARC.ResultsOverall, 401 enrolled. The mean...

10.1016/j.ijid.2018.10.011 article EN cc-by-nc-nd International Journal of Infectious Diseases 2018-10-25

Abstract. A Regional Water Resources study was performed at basins within and draining to the Basque Country Region (N of Spain), with a total area approximately 8500 km2. The objective obtain daily monthly long-term discharges in 567 points, most them ungauged, basin areas ranging from 0.25 1850 In order extrapolate calibrations gauged points ungauged ones, distributed conceptually based model called TETIS used. runoff production is modelled using five linked tanks each cell different...

10.5194/hess-13-229-2009 article EN cc-by Hydrology and earth system sciences 2009-02-23

This research evaluates the use of organoclay/alginate hydrogels in removing Acid Yellow 23 a fixed-bed column and contributes to application these composites context adsorption anionic dyes that are present wastewater. An organobentonite (OBent) was synthesized encapsulated an alginate matrix, using Ca2+ ions as crosslinking agent. Experiments columns showed breakthrough exhaustion times were longer with increasing bed height, which decreased increases flow rate initial dye concentration....

10.3390/jcs7090362 article EN Journal of Composites Science 2023-08-30

Abstract Introduction Obesity hypoventilation syndrome (OHS), is characterized by obesity, sleep-disordered breathing such as obstructive sleep apnea (OSA), and chronic daytime hypercapnia. Its prevalence increasing in parallel with obesity rates, yet epidemiological data on OHS remain limited, particularly among minority groups like Latinos, who are disproportionately affected obesity. This study aims to address the gap characterizing obese patients without admitted Medical Intensive Care...

10.1093/sleep/zsaf090.0638 article EN SLEEP 2025-05-01

Resumen.Este artículo pretende dar cuenta de las prácticas usadas por algunos caficultores dos cuencas andinas colombianas para enfrentar la variabilidad climática.La información fue recogida a través entrevistas, observaciones en fincas y talleres.Los resultados indican que el manejo sombra los cafetales, renovación con variedades resistentes roya, asociación cultivos, coberturas vegetales, siembra escalonada reforestación son estrategias utilizadas minimizar efectos climática.Sin embargo,...

10.14350/rig.42298 article ES cc-by-nc Investigaciones Geográficas Boletín del Instituto de Geografía 2014-02-10

Debate and deliberation surrounding climate change has shifted from mitigation toward adaptation, with much of the adaptation focus centered on adaptive practices, infrastructure development. However, there is little research assessing expected impacts, potential benefits, design challenges that exist for reducing vulnerability to impacts. The uncertainty requirements associated government policies, social structures reflect observed projected changes in intensity, duration, frequency...

10.1007/s00267-018-1104-8 article EN cc-by Environmental Management 2018-09-20

The wealth of data recorded by meteorological networks provides a great opportunity for analyzing and discovering knowledge. However, efficient storage its effective handling are prerequisites hydro-climatological research require strategies capturing, delivering, storing processing that guarantee quality consistency the data. purpose this work is to develop conceptual model warehouse in star schema allows structured multidimensional analysis historical Information registered two telemetered...

10.15446/dyna.v81n185.37700 article EN cc-by-nc-nd DYNA 2014-06-24

The Campoalegre River basin and its sub-basins present water-use conflicts. This study seeks to analyze these conflicts using a disaggregated quantitative approach, so as better understand existing potential water stress. We find that the estimated future flows are not sufficient meet demand, which will create significant stress, particularly in certain sub-basins. A tool is provided for decision makers identify conflicts, well strategies reduce system vulnerability. relevant other...

10.1080/07900627.2019.1699780 article EN International Journal of Water Resources Development 2020-01-13

Hydrological modelling is the basis for comprehensive management of hydrological resources, and in case high-mountain watersheds, it involves a complex physicochemical process interaction. This study, conducted Chinchiná river watershed (Colombia), poses multimodel analysis order to capture uncertainty associated with by means seven models, continuous simulation rain-runoff, monthly-scale aggregates, different complexity levels. The capability reflect response was analyzed through graphical...

10.22395/rium.v13n24a3 article EN cc-by-nc Revista Ingenierías Universidad de Medellín 2014-01-01

Introdução: A brucelose é uma zoonose endémica em Portugal, sendo a espondilodiscite brucélica das manifestações focaismais frequentes. Pode provocar sequelas graves, apesar da terapêutica dirigida.Material e Métodos: Estudo retrospectivo dos processos doentes com brucélica, internados no Serviço de Doenças Infecciosas do Centro Hospitalar Universitário Coimbra, num período 25 anos (1988-2012).Resultados: Foram identificados 54 doentes, 55,6% sexo masculino, idade média 54,8 anos. Em 81,5%...

10.20344/amp.4117 article PT cc-by-nc-nd Acta Médica Portuguesa 2014-03-30

There are limited longitudinal data on the systemic and mucosal antibody responses to SARS-CoV-2 from Latin America, a region severely affected by COVID-19, where vaccine strategies have been implemented during evolving pandemic.

10.12688/f1000research.126577.2 preprint EN cc-by F1000Research 2024-02-23

Backgrounds Spondylodiscitis (SD), which encompasses vertebral osteomyelitis, spondylitis, and discitis, is a pathology lacking consensus on optimal management. Methods This was retrospective analysis of medical records all patients with diagnosis SD admitted in an infectious diseases department, over 24-year period (1988–2011). Demographic, clinical, etiologic, radiological, therapeutic data were collected. Results One hundred forty enrolled, mostly male (63%), mean age 57 years (range,...

10.1097/ipc.0000000000000118 article EN Infectious Diseases in Clinical Practice 2013-10-28

El Triángulo del Café, en Colombia, está conformado por los departamentos de Caldas, Quindío y Risaralda. Su diversidad geográfica, climática suelos permite identificar varios ecotopos cafeteros que se determinan respuestas similares cuanto a productividad. La caracterización presenta este artículo fue posible la disponibilidad información geográfica libre acceso, producto Ley Transparencia Derecho Acceso Información Pública Nacional (Ley 1712 2014). utilizada para relacionada con geografía,...

10.19053/01233769.6100 article ES cc-by-nc-nd Perspectiva geográfica 2017-05-14

The climatic variability in the Tropical Andes area is high, both spatially and temporally, its analysis must be carried out short long term depending on available information. This type of spatial-temporal provides tools for planning environmental management urban areas, given high complexity. investigation focuses a diagnosis diurnal cycle monthly temperature structure 13 stations located city Manizales, Caldas (Colombia). applied research aims to understand behavior tropical Colombia,...

10.14483/2322939x.17091 article EN cc-by-nc Revista vínculos 2020-12-10
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