A5078380100- ICT Impact and Policies
- Regional Development and Innovation
- Elasticity and Material Modeling
- Business, Education, Mathematics Research
- Coronary Interventions and Diagnostics
- Cardiovascular Health and Disease Prevention
- Merger and Competition Analysis
- Banking stability, regulation, efficiency
- Employment, Labor, and Gender Studies
- Global trade and economics
- High Altitude and Hypoxia
- Cooperative Studies and Economics
- Orthopaedic implants and arthroplasty
- Economic and Social Development
- Digital Platforms and Economics
- Public Policy and Governance
- Aortic Disease and Treatment Approaches
- Global Financial Crisis and Policies
- Conflict, Peace, and Violence in Colombia
- Rheology and Fluid Dynamics Studies
- Cardiovascular and Diving-Related Complications
- World Trade Organization Law
- Public Health and Social Inequalities
- Criminal Justice and Penology
- Finance, Taxation, and Governance
Universidad de Santiago de Chile
2020-2024
Universidad Bernardo O'Higgins
2020
University of Talca
2016
Fundación Chile
2008
Centro de Investigación y Docencia Económicas
2005
Universidad Nacional de Colombia
1999
In this work, we propose a reliable and stable procedure to characterize anisotropic hyperelastic materials. For purpose, metaheuristic optimization method known as evolutionary strategies is used. The advantage of technique with respect traditional methods used for non-linear optimization, such the Levenberg–Marquardt Method, that algorithm oriented global problem, independent gradients allows solve problems constraints. These features are essential when characterizing materials have...
The present study involves experiments and modelling aimed at characterizing the passive structural mechanical behavior of chronic hypoxic lamb thoracic aorta, whose gestation, birth postnatal period were carried high altitude (3600 masl). To this end, response was studied via tensile pressurization tests. tests measurements used simultaneously to calibrate material parameters Gasser-Holzapfel-Ogden (GHO) hyperelasctic anisotropic constitutive model through an analytical-numerical...
This work consists of analyzing the impact geometrical features (thickness and curvature) on estimation circumferential residual stresses in arteries. For this purpose, a specific sample lamb abdominal artery is chosen for analysis and, through computational tools based Python libraries, stress-free geometry captured after ring opening test. Numerical simulations are then used to reconstruct order estimate stresses. Then, four models analyzed: an ideal geometry, i.e., constant curvature...
The Constrained Mixture Model (CMM) is a novel approach to describe arterial wall mechanics, whose formulation based on referential physiological state. CMM considers the as mixture of load-bearing constituents, each them with characteristic mass fraction, material properties, and deposition stretch levels from its stress-free state in-vivo configuration. Although some reports this model successfully assess capabilities, they barely explore experimental approaches patient-specific scenarios....
Introduction: Gestation under chronic hypoxia causes pulmonary hypertension, cardiovascular remodeling, and increased aortic stiffness in the offspring. To mitigate neonatal risk, pharmacological treatments (such as hemin sildenafil) have been proposed to improve vasodilation. However, little is known about effects of these on aorta. Therefore, we studied effect sildenafil aorta lambs gestated raised at highlands, thereby subjected hypoxia. Methods: Several biomechanical tests were conducted...
RESUMEN Para evaluar de manera fidedigna el riesgo ruptura la aorta – junto a los índices peligrosidad enfermedades cardiovasculares u otras condiciones extremas y efectos posibles tratamientos se requiere conocer mecanismos daño que conducen ésta. En este trabajo, caracteriza mecánico del tejido aórtico en condición hipoxia, analizando numéricamente su respuesta al ser sujeto un estado presurización similar inducido por ensayo acopado hidráulico. El comportamiento pared aórtica, describe...
Spanish Abstract: En las telecomunicaciones de la región confluyen empresas trasnacionales origen latinoamericano, nacionales que se concentran en operaciones su propio país y externo a región. efecto, el principal operador es América Móvil, translatina mexicano enfrenta una dura competencia con Telefónica España.El objetivo del presente trabajo analizar estado latinoamericanas profundizando los casos Brasil Chile. Del mismo modo, interesa desafíos regulatorios enfrentan autoridades sector,...