Now showing items 1-10 of 10

    • Gap junction dynamics induces localized conductance bistability in cardiac tissue 

      Hawks, Claudia; Elorza Barbajero, Jorge; Witt, Annette; Laroze, David; Rodríguez Cantalapiedra, Inma; Peñaranda Ayllón, Angelina; Echebarría Domínguez, Blas; Bragard, Jean (2019-07-01)
      Article
      Open Access
      Connexins 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 ...
    • Huge reduction of defibrillation thresholds using four electrode defibrillators 

      Simic, Ana; Rodríguez Cantalapiedra, Inma; Elorza Barbajero, Jorge; Bragard, Jean (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Open Access
      In the absence of a better solution, ventricular fibrillation is treated by applying one or several large electrical shocks to the patient. The question of how to lower the energy required for a successful shock is still ...
    • Huge reduction of defibrillation thresholds using four electrode defibrillators 

      Simic, Ana; Rodríguez Cantalapiedra, Inma; Elorza Barbajero, Jorge; Bragard, Jean (2015-01-02)
      Article
      Open Access
      In the absence of a better solution, ventricular fibril- lation is treated by applying one or several large electri- cal shocks to the patient. The question of how to lower the energy required for a successful shock is ...
    • Influence of gap junction dynamics on the stability of reentrant waves in cadiac tissue 

      Hawks, Claudia; Elorza Barbajero, Jorge; Echebarría Domínguez, Blas; Rodríguez Cantalapiedra, Inma; Peñaranda Ayllón, Angelina; Bragard, Jean (2015)
      Conference report
      Open Access
      Constant 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 

      Hawks, Claudia; Elorza Barbajero, Jorge; Echebarría Domínguez, Blas; Rodríguez Cantalapiedra, Inma; Peñaranda Ayllón, Angelina; Bragard, Jean (2016-01-01)
      Conference lecture
      Open Access
      Constant 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 ...
    • On the Induction of New Fuzzy Relations, New Fuzzy Operators and Their Aggregation 

      Carmona Cervelló, Neus; Elorza, Jorge; Recasens Ferrés, Jorge; Bragard, Jean (Springer, 2013)
      Article
      Open Access
      In this paper we generate fuzzy relations and fuzzy operators using different kind of generators and we study the relationship between them. Firstly, we introduce a new fuzzy preorder induced by a fuzzy operator. We ...
    • Permutability of fuzzy consequence operators and fuzzy interior operators 

      Carmona, Neus; Elorza, Jorge; Recasens Ferrés, Jorge; Bragard, Jean (2013)
      Article
      Restricted access - publisher's policy
      In this paper we study the permutability of the composition of fuzzy consequence operators (fuzzy closings) and fuzzy interior operators (fuzzy openings). We establish several characterizations and we show the relation of ...
    • Permutable fuzzy consequence and interior operators and their connection with fuzzy relations 

      Carmona, Neus; Elorza Barbajero, Jorge; Recasens Ferrés, Jorge; Bragard, Jean (2015-07-20)
      Article
      Open Access
      Fuzzy operators are an essential tool in many fields and the operation of composition is often needed. In general, composition is not a commutative operation. However, it is very useful to have operators for which the order ...
    • Phase-2 reentry in cardiac tissue: role of the slow calcium pulse 

      Rodríguez Cantalapiedra, Inma; Peñaranda Ayllón, Angelina; Echebarría Domínguez, Blas; Bragard, Jean (2010-07-13)
      Article
      Open Access
      Phase-2 re-entry is thought to underlie many causes of idiopathic ventricular arrhythmias as, for instance, those occurring in Brugada syndrome. In this paper, we study under which circumstances a region of depolarized tissue ...
    • Some illustrative examples of permutability of fuzzy operators and fuzzy relations 

      Carmona, Neus; Elorza, Jorge; Recasens Ferrés, Jorge; Bragard, Jean (2014)
      Conference report
      Open Access
      Composition of fuzzy operators often appears and it is natural to ask when the order of composition does not change the result. In previous papers, we characterized permutability in the case of fuzzy consequence operators ...