Results 81 to 90 of about 86,859 (205)
Helicobacter pylori Infection in Colombia: Phylogeny, Resistome, and Virulome
APMIS, Volume 133, Issue 2, February 2025.ABSTRACT Helicobacter pylori is a successful etiologic gastric agent that reaches a prevalence around 80% in Colombia. This bacterium is extremely diverse and has shown a phylogeographic pattern. The objective of this study was to perform an analysis of genomic epidemiology of H. pylori in Colombia. We enriched our set of 29 newly sequenced Colombian H.
Angela B. Muñoz +4 more
wiley +1 more source
Revista Colombiana de Ciencias Sociales, 2018 The generational relief is a problematic inside the agricultural production that needs to be recognized and addressed. This article presents the results of the investigation done in the ambit of the farmer families dedicated to the coffee production in ...
Wilson Giovanni Jiménez Barbosa +6 more
doaj +1 more source
Modelamiento de diversos factores que inciden en el rendimiento académico de los estudiantes de física de la Universidad de Nariño en el semestre A-2017 [PDF]
, 2018 Este trabajo tiene como objetivo identificar factores relacionados con el desempeño académico de los estudiantes de Física de la Universidad de Nariño, y hacer uso de estos, mediante métodos estadísticos para buscar relaciones entre dichas variables y ...
Chaves B., Andrés
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A Note of Non‐Existence of Strongly Regular and Deza Graphs
Electronics Letters, Volume 61, Issue 1, January/December 2025.ABSTRACT In this letter, we prove that strongly regular graphs and Deza digraphs do not exist with parameters (pm,k,2m,2m)$(p^m,k,2^m,2^m)$ where m=3,4$m=3,4$. As a consequence, we provide many parameters for which there is no a difference set.
Fernando Andres Benavides +1 more
wiley +1 more source
Biotecnología en el Sector Agropecuario y Agroindustrial, 2014 Phytophthora infestans (Mont.) de Bary, causa pérdidas considerables en todas las áreas donde se cultivan Solanáceas. Su manejo se realizapor métodos químicos, biológicos y tradicionalmente por los agricultores utilizando jugo de fique.
IVAN DARIO OTERO R +5 more
doaj +2 more sources
Articulación entre la educación media y superior: Universidad de Nariño
Magis: Revista Internacional de Investigación en Educación, 2012 Se describe el proceso de articulación educativa de la Universidad de Nariño, a partir de las experiencias de su unidad académica Universidad de Nariño Virtual.
Andrea Guerrero-Mosquera +2 more
doaj
Study of Tres-3 Exoplanet [PDF]
, 2012 Desde el Observatorio Astronómico de la Universidad de Nariño estudiamos la curva de luz del exoplaneta TrES-3 para determinar algunos parámetros físicos de este ...
Quijano-Vodniza, Alberto +2 more
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Implications of General Functional Response on Stability and Bifurcation in Predator–Prey Systems
Journal of Applied Mathematics, Volume 2025, Issue 1, 2025.This work investigates the dynamical consequences of a nonlinear functional response in a predator–prey system. The model exhibits three equilibria: total extinction, predator extinction, and coexistence. Stability analysis shows that the total extinction equilibrium is inherently unstable, while the predator‐extinction equilibrium achieves global ...
Miller Cerón Gómez +3 more
wiley +1 more source
Regional Growth Convergence in Colombia Using Social Indicators [PDF]
This paper investigates convergence in social indicators among Colombian departments from 1973 to 2005. We use census data and apply both the regression approach and the distributional approach (univariate and bivariate kernel density estimators).
Adriana Cardozo, Boris Branisa
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Evaluation of Sparse Array Geometries to Improve DOA Estimation With Mutual Coupling
Journal of Engineering, Volume 2025, Issue 1, 2025.Direction of arrival (DOA) estimation is a classic problem in array processing. It has wide applications in wireless communications, radar, acoustics, and smart antennas, to name just a few. In this paper, we present a novel comparative study of six array geometries and their impact on mutual coupling and DOA estimation performance.
Oscar D. Ossa-Molina +3 more
wiley +1 more source