Browsing by Author "Peñaranda Ayllón, Angelina"
Now showing items 1-20 of 44
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A General Equilibrium Model to Study Intracellular Calcium Homeostasis. New Insights on Ventricular Function
(2018)
Conference report
Open Access -
Acoustic evaluation of modular greenery noise barriers
(2016-12-01)
Article
Open AccessGreen noise barriers have become an alternative means of reducing urban traffic noise. In this paper, the acoustic performance of a modular greenery noise barrier is evaluated. In situ measurements of noise reflection were ... -
Are SR Ca content fluctuations or SR refractoriness the key to atrial cardiac alternans?: insights from a human atrial model
(2014-06-01)
Article
Restricted access - publisher's policyDespite the important role of electromechanical alternans in cardiac arrhythmogenesis, its molecular origin is not well understood. The appearance of calcium alternans has often been associated to fluctuations in the ... -
Calcium alternans is a global order-disorder phase transition. Robustness on Ryanodine Receptor release dynamics
(2015)
Conference report
Open AccessElectromechanical alternans is a beat-to-beat alterna- tion in the strength of contraction of a cardiac cell which appears often due to an instability of calcium cycling. The global calcium signal in cardiomyocytes is ... -
Calcium alternans is a global order-disorder phase transition: robustness on ryanodine receptor release dynamics
(2016-01-01)
Article
Open AccessElectromechanical alternans is a beat-to-beat alterna- tion in the strength of contraction of a cardiac cell which appears often due to an instability of calcium cycling. The global calcium signal in cardiomyocytes is ... -
Calcium alternans produced by increased sarcoplasmic reticulum refractoriness
(IEEE Computer Society Publications, 2011)
Conference report
Restricted access - publisher's policyDespite the important role of electro-mechanical alternans in cardiac arrhythmogenesis, its molecular origin is not well understood. In this paper we want to study alternans that can be associated with alternations in ... -
Calcium alternans produced by increased sarcoplasmic reticulum refractoriness
(2011-09-29)
Article
Open AccessDespite the important role of electro-mechanical alternans in cardiac arrhythmogenesis, its molecular origin is not well understood. In this paper we want to study alternans that can be associated with alternations in the ... -
Cardiac dynamics: modeling the Brugada syndrome
(2007)
Conference report
Open AccessEste trabajo analiza mediante un modelo matemático reducido de corrientes ionicas la posibilidad de aparición de arritmias cardiacas. -
Conductance heterogeneities induced by multistability in the dynamics of coupled cardiac gap junctions
(2021-07-01)
Article
Open AccessIn this paper, we study the propagation of the cardiac action potential in a one-dimensional fiber, where cells are electrically coupled through gap junctions (GJs). We consider gap junctional gate dynamics that depend on ... -
Corriente alterna : teoría y problemas
(Universitat Politècnica de Catalunya, 2009)
Lecture notes
Open Access -
Corriente alterna. Teoría y problemas
(Universitat Politècnica de Catalunya, 1993)
Lecture notes
Open Access -
Dependency of calcium alternans on Ryanodine Receptor Refractoriness
(2013-02-04)
Article
Open AccessBackground Rapid pacing rates induce alternations in the cytosolic calcium concentration caused by fluctuations in calcium rele However, the relationship between calcium alternans and refractoriness of the SR calcium ... -
Diamagnetic interactions in superheated-superconducting granules under an external magnetic field
(2002-11)
Article
Open AccessThe study of the phase transitions produced in ensembles of metastable superconducting granules by magnetic field variations is important both for fundamental physics and for applications in particle detectors. Theoretical ... -
Effect of RyR2 refractoriness and hypercalcemia on calcium overload, spontaneous release, and calcium alternans
(2013)
Article
Restricted access - publisher's policyIn this work we use a computer model of a ventricular rabbit myocyte to study several factors that affect sarcoplasmic reticulum (SR) calcium load, such as hypercalcemia, SR calcium buffering, or ryanodine receptor ... -
Effects of small conductance calcium activated potassium channels in atrial myocytes
(IEEE Computer Society Conference Publishing Services (CPS), 2017)
Conference lecture
Open AccessAmong the different potassium channels present in cardiac myocytes, the small conductance Ca2+ activated potassium channels (SK channels) are particular because they are affected by changes in intracellular calcium. The ... -
Elasticidad
(Universitat Politècnica de Catalunya, 1995-05)
Problem statement, exercise
Open Access -
Gap junction dynamics induces localized conductance bistability in cardiac tissue
(2019-07-01)
Article
Open AccessConnexins are specialized ionic channels that control the action potential propagation between cardiac myocytes. In this paper, we study the connexin dynamics in a one-dimensional model of cardiac tissue. We show that the ... -
Influence of gap junction dynamics on the stability of reentrant waves in cadiac tissue
(2015)
Conference report
Open AccessConstant conductances are often assumed when model- ing cardiac tissue. However experimental evidences have shown that gap junctions (GJ) actually connect adjacent cardiac myocytes. These GJ are complex proteins of ... -
Influence of gap junction dynamics on the stability of reentrant waves in cardiac tissue
(2016-01-01)
Conference lecture
Open AccessConstant conductances are often assumed when model- ing cardiac tissue. However experimental evidences have shown that gap junctions (GJ) actually connect adjacent cardiac myocytes. These GJ are complex proteins of ... -
Mecánica de EGT. Enunciados de problemas y guiones de prácticas
(Universitat Politècnica de Catalunya, 2010-09)
Lecture notes / Problem statement, exercise
Open Access
