Examinando por Autor "Vélez, S. (Santiago)"

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  • Miniatura
    PublicaciónAcceso abierto
    Hacia la construcción de un modelo de simulación de la transmisión del dengue en Colombia
    (2014-05-07) Vélez, S. (Santiago); Núñez, C. P. (Claudia Patricia); Ruiz-Carrascal, C. D. (Carlos Daniel)
    Dengue fever has been considered a public health problem worldwide. In several Colombian regions, where environmental conditions seem to be favorable enough for disease transmission, incidence has been showing important high values. Simplified versions of the infectious disease mathematical models CIMSiM and DENSiM were proposed to be applied for representing the transmission dynamics of dengue incidence in a specific Colombian locality. This is our first quantitative attempt to explore the possible influence of climatic variables on dengue transmission in endemic urban areas. Climatic records were analyzed to detect possible anomalies and their degree of association with epidemiological time series.
  • Miniatura
    PublicaciónAcceso abierto
    Propuesta metodológica para la evaluación de sistemas de tratamiento de aguas residuales domésticas en el sitio de origen
    (2013-11-25) Wills, B. A. (Beatriz Amparo); Vélez, S. (Santiago); Arboleda, A. F. (Andrés Felipe); Garcés, J. P. (Juan Pablo)
    A method for the evaluation of domestic onsite wastewater treatment systems is proposed. It allows establishing, in a representative way, the performance of these systems ensuring, by the use of two homogenization units, that all pollutant loads generated in the house will be present in the composed sample to be analyzed in the laboratory.