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Mostrando publicaciones 1-14 de 14
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A description of the epidemiological dynamics of Chagas disease via mathematical modeling
Lozada-Yavina, Rafael; Marchant, Carolina; Cancino-Faure, Beatriz ; Hernández-Rodríguez, Erix W.; Córdova-Lepe, Fernando (2023)Chagas disease is caused by the protozoan Trypanosoma cruzi, which parasitizes many mammals, including humans. Its vectors are blood-feeding hematophagous triatomine insects of different species, which vary according to ...
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A mathematical model and simulation scenarios for T and B cells immune response to severe acute respiratory syndrome-coronavirus-2
Cuesta-Herrera, Ledys; Córdova-Lepe, Fernando; Pastenes, Luis; Arencibia, Ariel Domingo; Baldera-Moreno, Yvan; Torres-Mantilla, H (2023)Severe acute respiratory syndrome coronavirus is a type 2 highly contagious, and transmissible among humans; the natural human immune response to severe acute respiratory syndrome-coronavirus-2 combines cell-mediated ...
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A new approach to the concept of linearity. Some elements for a multiplicative linear algebra
Córdova-Lepe, Fernando; Del Valle-Salamanca, Rodrigo; Vilches-Ponce, Karina (2020)An arithmetic based on the multiplication is the base of the Bigeometric (and Multiplicative) Calculus, a type of non-Newtonian Calculus which has had uses in the digital processing of images. In this work, we present the ...
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A simple stability analysis for a mathematical model of migration due to noise and resources
Ramirez-Carrasco, Carlos; Córdova-Lepe, Fernando; Velásquez, Nelson (2022)This research studies a metapopulation model where each patch is considered a form of fragmentation of the environment produced by the spatio-temporal variability of anthropogenic noise. A deterministic mathematical model ...
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Analysis of two discrete forms of the classic continuous SIR epidemiological model
Córdova-Lepe, Fernando; Gutiérrez, Rodrigo I.; Vilches-Ponce, Karina (2019)From continuous standard SIR model, which is configured from two sequenced flows (a) susceptible – infectious and (b) infectious – removed, we obtain two impulsive SIR models assuming different time scales for (a) respect ...
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Chikungunya in Ecuador, 2014–2017: maps and more
Cabrera, Maritza; Córdova-Lepe, Fernando; Valero-Cedeño, Nereida; Reyes-Baque, Javier; Rodríguez-Morales, Alfonso J. (2019) -
Dynamics between infectious diseases with two susceptibility conditions: a mathematical model
Gutiérrez-Jara, Juan P.; Córdova-Lepe, Fernando; Muñoz-Quezada, María Teresa (2019)This paper presents a novel epidemiological transmission model of a population affected by two different susceptible-infected-susceptible infectious diseases. For each disease, individuals fall into one of the two ...
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Eco-epidemiological predator–prey models: a review of models in ordinary differential equations
Gómez-Hernández, E. A.; Moreno-Gómez, Felipe N.; Córdova-Lepe, Fernando; Bravo-Gaete, Moises; Velásquez, Nelson; Benítez, Hugo A. (2024)Eco-epidemiology integrates ecological and epidemiological approaches to analyze both the impact of infectious diseases on ecological communities and how interspecific interactions can alter disease dynamics. With the aim ...
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Efects of human mobility and behavior on disease transmission in a COVID‑19 mathematical model
Gutiérrez-Jara, Juan P.; Vogt-Geisse, Katia; Cabrera, Maritza; Córdova-Lepe, Fernando; Muñoz-Quezada, María Teresa (2022)Human interactions and perceptions about health risk are essential to understand the evolution over the course of a pandemic. We present a Susceptible-Exposed-Asymptomatic-Infectious-Recovered-Susceptible mathematical model ...
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Exploring the effects of competition and predation on the success of biological invasion through mathematical modeling
Rivera-Estay, Viviana; Córdova-Lepe, Fernando; Moreno-Gómez, Felipe N.; Benitez, Hugo A.; Gutiérrez, Rodrigo (2024)Biological invasions are a major cause of species extinction and biodiversity loss. Exotic predators are the type of introduced species that have the greatest negative impact, causing the extinction of hundreds of native ...
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Impulsive simulation model for the analysis of allergy dynamics
Vergaño-Salazar, J. G.; Pastenes, Luis; Córdova-Lepe, Fernando; Mardones-Precht, P. (2020)This work approach the analysis of the problems caused by the incidence of allergic diseases, using an impulsive simulation model as a methodological approach, in this, the dynamics of the model is governed by two time ...
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Plastic energy allocation toward life-history functions in a consumer-resource interaction
Córdova-Lepe, Fernando; Moreno-Gómez, Felipe N.; Velásquez, Nelson; Gutiérrez Aguilar, Rodrigo (2022)Various environmental alterations resulting from the current global change compromise the persistence of species in their habitual environment. To cope with the obvious risk of extinction, plastic responses provide organisms ...
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Population dynamics in the face of climate change: analysis of a cubic thermal performance curve in ectotherms
Saldaña Núñez, Víctor; Córdova-Lepe, Fernando; Moreno-Gómez, Felipe N. (2019)The objective of this study is to perform an analysis on the effect of the increase in temperature under the context of climate change on the dynamics of a population of ectothermic organisms, which are highly susceptible ...
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Spatial distribution of dengue in Ecuador during 1994–2018 using geographic information systems (GIS) – implications public health and travel medicine
Cabrera, M.; Córdova-Lepe, Fernando; Valero-Cedeño, Nereida; Reyes-Baque, Javier; Veliz, T.; Rodríguez, L.; Rodríguez-Morales, Alfonso J. (2020)Background: After serious epidemics of chikungunya (CHIKV) and Zika (ZIKV) in the Americas, dengue (DENV) has reemerged in most countries. We estimated the incidence rates and evolution of DENV cases in Ecuador from 1994 ...