Now showing items 1-15 of 15

    • A 4+1 architecture for in vivo electrophysiology visual prosthesis 

      Barriga-Rivera, Alejandro; Eiber, Calvin D.; Matteucci, Paul B.; Chen, Spencer C.; Morley, John W.; Lovell, Nigel H.; Suaning, Gregg J. (Càtedra d'Accessibilitat (CATAC), 2016)
      Article
      Open Access
      Researchers around the globe are working towards restoring vision to the blind through the development of a visual neuroprosthesis. Overcoming physical, technical and biological limitations represents one of the main ...
    • A Video Database for Analyzing Affective Physiological Responses 

      Granero Moya, Marcel (Universitat Politècnica de Catalunya, 2019-06)
      Bachelor thesis
      Open Access
      Affective computing, leveraged by machine learning techniques, is advancing rapidly in the task of affect recognition in videos. However, there is a need for more annotated data. Several studies have built huge video ...
    • Biological tissue characterization by magnetic induction spectroscopy (MIS): requirements and limitations 

      Scharfetter, Hermann; Casañas Bueno, Roberto; Rosell Ferrer, Francisco Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003-07-31)
      Article
      Open Access
      Magnetic induction spectroscopy (MIS) aims at the contactless measurement of the passive electrical properties (PEP) σ, ε, and μ of biological tissues via magnetic fields at multiple frequencies. Whereas previous publications ...
    • Breaking of the excitatory-inhibitory balance in neural networks 

      Pericas Iturriagagoitia, Cristina (Universitat Politècnica de Catalunya, 2016-07-04)
      Bachelor thesis
      Open Access
      Covenantee:   New York University
      Experimental and theoretical study of membrane potentials of neurons in culture provide evidence of some of the mechanisms responsible for excitatory-inhibitory imbalance.
    • Coupled electromechanical model of the heart: Parallel finite element formulation 

      Lafortune, Pierre; Aris, Ruth; Vázquez, Mariano; Houzeaux, Guillaume (2012-01)
      Article
      Restricted access - publisher's policy
      In this paper, a highly parallel coupled electromechanical model of the heart is presented and assessed. The parallel-coupled model is thoroughly discussed, with scalability proven up to hundreds of cores. This work focuses ...
    • Effects of small conductance calcium activated potassium channels in atrial myocytes 

      Peñaranda Ayllón, Angelina; Echebarría Domínguez, Blas; Álvarez Lacalle, Enrique; Rodríguez Cantalapiedra, Inma (IEEE Computer Society Conference Publishing Services (CPS), 2017)
      Conference lecture
      Open Access
      Among 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 ...
    • Generador de pulsos para la estimulación de cultivos de cardiomiocitos, con salida en corriente, bifásico y con eliminación activa de componente contínua 

      Araujo Sousa, David (Universitat Politècnica de Catalunya, 2015-10)
      Master thesis
      Open Access
      The reparation or recovering of damaged cardiac tissue caused by a heart attack or other disease that could damage the tissue, is one of the most attractive fields and possibly more important for tissue engineering research. ...
    • Initial analysis of SAR from a cell phone inside a vehicle by numerical computation. 

      Anzaldi, Gabriel; Silva Martínez, Fernando; Fernández Chimeno, Mireya; Quílez Figuerola, Marcos; Riu Costa, Pere Joan (Institution of Electrical and Electronics Engineers, 2007-05-31)
      Article
      Open Access
      The purpose of this paper is to analyze the influence of the metallic structures of a realistic car body frame on the specific absorption rate (SAR) produced by a cell phone when a complete human body model is placed at ...
    • Integrating multi-unit electrophysiology and plastic culture dishes for network neuroscience 

      Morales Larramendi, Ricardo; Riss, M; Wang, Liang; Gavin, R; Del, Rio Ja; Alcubilla González, Ramón; Claverol Tinturé, Enrique (2008-11)
      Article
      Restricted access - publisher's policy
      The electrophysiological characterisation of cultured neurons is of paramount importance for drug discovery, safety pharmacology and basic research in the neurosciences. Technologies offering low cost, low technical ...
    • Numerical modelling of the electrophysiology of the neuron 

      Lang, Victoria Ashley (Universitat Politècnica de Catalunya, 2017-07)
      Master thesis
      Restricted access - author's decision
      A majority of studies on the brain are focused at either the molecular level or organ level. Rarely do we see models that attempt to relate neuronal behaviors to symptoms of traumatic brain injury. Well-documented studies ...
    • Prevention of adenosine A2A receptor activation diminishes beat-to-beat alternation in human atrial myocytes 

      Llacher Alsina, Anna Pilar; Vallmitjana Lees, Alexander; Benítez Iglesias, Raúl; Montiel Dacosta, José Antonio; Cinca Cusculluela, Juan (2016-01-01)
      Article
      Open Access
      © 2015, Springer-Verlag Berlin Heidelberg. Atrial fibrillation (AF) has been associated with increased spontaneous calcium release from the sarcoplasmic reticulum and linked to increased adenosine A2A receptor (A2AR) ...
    • Reentry produced by small-scale heterogeneities in a discrete model of cardiac tissue 

      Alonso Muñoz, Sergio; Bär, Markus (2014)
      Conference report
      Open Access
      Reentries are reexcitations of cardiac tissue after the passing of an excitation wave which can cause dangerous arrhythmias like tachycardia or life-threatening heart failures like fibrillation. The heart is formed by ...
    • Resposta Galvànica de la Pell 

      Morral Escofet, Berta (Universitat Politècnica de Catalunya, 2015-10-26)
      Bachelor thesis
      Open Access
      Stress has dramatically increased in the past decades due to social changes harming the health of individuals. Thereby stress monitoring and controlling techniques have become a matter of research. A few techniques for ...
    • Signal-to-motion artifact ratio versus frequency for impedance pneumography 

      Rosell Ferrer, Francisco Javier; Webster, John G. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1995-03-01)
      Article
      Open Access
      We measured transthoracic impedance between 12.5 and 185 kHz in nine adults. We used a system with two impedance channels, both simultaneously detecting the real part of impedance at two different frequencies. We used only ...
    • The effect of respiration-induced heart movements on the ECG 

      Pallàs Areny, Ramon; Colominas i Balagué, Josep; Rosell Ferrer, Francisco Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1989-06-01)
      Article
      Open Access
      We present a model describing the rotation of the cardiac vector as a possible mechanism resulting in the presence of respiratory information in the ECG. The way in which this information is revealed is analyzed and the ...