Ara es mostren els items 1-20 de 64

    • A magnetic induction measurement system for adult vital sign monitoring: evaluation of capacitive and inductive effects 

      Mahdavi, Hadiseh; Rosell Ferrer, Francisco Javier (IOPScience, 2013)
      Text en actes de congrés
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      Magnetic induction (MI) measurement technique could provide an unobtrusive contactless method for continuous monitoring of vital signs such as breathing and cardiac activity in bed. In this paper, we present a magnetic ...
    • A new spiral microelectrode assembly for electroporation and impedance measurements of adherent cell monolayers 

      García Sánchez, Tomás; Guitart, Maria; Rosell Ferrer, Francisco Javier; Gomez Foix, Anna Maria; Bragós Bardia, Ramon (2014-08-01)
      Article
      Accés restringit per política de l'editorial
      In this study, a new microelectrode assembly based on spiral geometry applicable to in situ electroporation of adherent cell monolayers on standard multiwell plates is presented. Furthermore, the structure is specially ...
    • A wireless sensor network design for the Help4Mood european project 

      Pérez Díaz de Cerio, David; Ruiz Boqué, Sílvia; Rosell Ferrer, Francisco Javier; Ramos Castro, Juan José; Castro Robles, Joan Carles (VDE Conference Publications, 2012)
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      Help4Mood is a closed loop approach supporting the control, communication and treatment management of patients with Major Depression. The first out of the three main components of the Help4Mood solution is the Personal ...
    • A wireless under-mattress sensor system for sleep monitoring in people with major depression 

      Mahdavi, Hadiseh; Ramos Castro, Juan José; Giovinazzo, Giuseppe; García González, Miguel Ángel; Rosell Ferrer, Francisco Javier (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Monitoring people during sleep time is of particular interest to patients with sleep disorders and elderly people or infants. We have developed a battery powered electronic system to monitor people in the bed, store the ...
    • An improved buffer for bioelectric signals 

      Pallàs-Areny, Ramon; Colominas i Balagué, Josep; Rosell Ferrer, Francisco Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1989-04-01)
      Article
      Accés obert
      We propose an AC-coupled amplifier that offers a high in-put impedance, thus making it suitable for bioelectric signal amplifi- cation. We also present the necessary formulas for calculating its input impedance and transfer ...
    • Applications of longitudinal and transversal bioimpedance measurements in peritoneal dialysis at 50 kHz 

      Nescolarde Selva, Lexa Digna; Doñate, T.; Casañas Bueno, Roberto; Rosell Ferrer, Francisco Javier (2010)
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      More relevant information of the fluid changes in peritoneal dialysis (PD) might be obtained with segmental bioimpedance measurements rather than whole-body measurement, who hidden information of body composition. ...
    • Assessment and follow-up of muscle injuries in athletes by bioimpedance: Preliminary results 

      Nescolarde Selva, Lexa Digna; Yanguas Leyes, Javier; Medina Leal, Daniel; Rodas Font, Gil; Rosell Ferrer, Francisco Javier (IEEE, 2011)
      Llibre
      Accés restringit per política de l'editorial
      Mono-frequency (50 kHz) whole-body and segmental bioimpedance is measured before sport training in 14 high performance athletes. The athletes are classified in two groups according to the team sport: ...
    • Automatic system for electroporation of adherent cells growing in standard multi-well plates 

      García Sánchez, Tomás; Guitart, Maria; Rosell Ferrer, Francisco Javier; Gomez Foix, Anna Maria; Bragós Bardia, Ramon (IEEE, 2012)
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      In this study an automatic system is presented to perform electroporation, also known as electropermeabilization, on adherent cells. It is an intention of this system to apply electric field pulses directly to cells growing ...
    • ÀLGEBRA (Examen 2n quadrimestre, 2n parcial) 

      Rosell Ferrer, Francisco Javier (Universitat Politècnica de Catalunya, 2012-06-15)
      Examen
      Accés restringit a la comunitat UPC
    • 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
      Accés obert
      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 ...
    • Biomedical point-of-care microanalyzer for potentiometric determination of ammonium ion in plasma and whole blood 

      Calvo López, Antonio; Rebollo Calderon, Beatriz; Ormazábal, Aida; Artuch, Rafael; Rosell Ferrer, Francisco Javier; Alonso Chamarro, Julian; Puyol, Mar (Elsevier, 2022-05-01)
      Article
      Accés obert
      Some inborn errors of metabolism and other diseases can result in increasing blood ammonium (hyperammonemia episodes), which can cause serious neurological complications in patients or even death. Early diagnosis, follow ...
    • Cardiac tissue engineering by electrical stimulation with subcutaneous and cardiac adipose-tissue derived progenitor cells (ATDPCs) 

      Bayés-Genís, Antoni; Llucià-Valldeperas, Aida; Sánchez Terrones, Benjamín; Soler-Botija, C.; Roura, S.; Prat-Vidal, C.; Gálvez-Montón, C.; Rosell Ferrer, Francisco Javier; Bragós Bardia, Ramon (Fundació 'La Caixa', 2011)
      Altres
      Accés restringit per política de l'editorial
      A major challenge of cardiac tissue engineering is directing cells to establish the physiological structure and function of the myocardium being replaced. In native heart, pacing cells generate electrical stimuli that ...
    • Comment on: "Is bioelectrical impedance vector analysis of value in the elderly with malnutrition and impaired functionality" 

      Nescolarde Selva, Lexa Digna; Rosell Ferrer, Francisco Javier; Gastelurrutia, P.; Bayés-Genís, Antoni; Calpe, J.; Hernández, R. (2009-02)
      Article
      Accés restringit per política de l'editorial
    • Design and implementation of a microelectrode assembly for use on noncontact in situ electroporation of adherent cells 

      García Sánchez, Tomás; Sanchez Ortiz, Beatriz; Vila, Ingrid; Guitart, M.; Rosell Ferrer, Francisco Javier; Gomez Foix, Anna Maria; Bragós Bardia, Ramon (2012-10)
      Article
      Accés restringit per política de l'editorial
      In situ electroporation of adherent cells provides significant advantages with respect to electroporation systems for suspension cells, such as causing minimal stress to cultured cells and simplifying and saving several ...
    • Detection of muscle gap by L-BIA in muscle injuries: clinical prognosis 

      Nescolarde Selva, Lexa Digna; Yanguas Leyes, Javier; Terricabras, Joaquim; Lukaski, Henry; Alomar, Xavier; Rosell Ferrer, Francisco Javier; Rodas Font, Gil (Institute of Physics (IOP), 2017-07-01)
      Article
      Accés obert
      Sport-related muscle injury classifications are based basically on imaging criteria such as ultrasound (US) and magnetic resonance imaging (MRI) without consensus because of a lack of clinical prognostics for return-to-play ...
    • Differentiation using minimally-invasive bioimpedance measurements of healthy and pathological lung tissue through bronchoscopy 

      Company Se, Georgina; Nescolarde Selva, Lexa Digna; Pajares Ruiz, Virginia; Torrego Fernández, Alfons; Riu Costa, Pere Joan; Rosell Ferrer, Francisco Javier; Bragós Bardia, Ramon (Frontiers Media SA, 2023-04-11)
      Article
      Accés obert
      Purpose: To use minimally-invasive transcatheter electrical impedance spectroscopy measurements for tissue differentiation among healthy lung tissue and pathologic lung tissue from patients with different respiratory ...
    • Early detection of acute transmural myocardial ischemia by the phasic systolic-diastolic changes of local tissue electrical impedance 

      Jorge, Esther; Amoros Figueras, Gerard; García Sánchez, Tomás; Bragós Bardia, Ramon; Rosell Ferrer, Francisco Javier; Cinca Cuscullola, Juan Maria (2016-02-01)
      Article
      Accés obert
      Myocardial electrical impedance is influenced by the mechanical activity of the heart. Therefore, the ischemia-induced mechanical dysfunction may cause specific changes in the systolic-diastolic pattern of myocardial ...
    • Effect of calibration for tissue differentiation between healthy and neoplasm lung using minimally invasive electrical impedance spectroscopy 

      Company Se, Georgina; Nescolarde Selva, Lexa Digna; Pajares Ruiz, Virginia; Torrego Fernández, Alfons; Riu Costa, Pere Joan; Rosell Ferrer, Francisco Javier; Bragós Bardia, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2022)
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      Accés obert
      his study proposes a calibration method and analyses the effect of this calibration in lung measures, using minimally invasive electrical impedance spectroscopy with the 3-electrode method, for tissue differentiation between ...
    • Effects of muscle injury severity on localized bioimpedance measurements 

      Nescolarde Selva, Lexa Digna; Yanguas Leyes, Javier; Lukaski, Henry; Alomar, Xavier; Rosell Ferrer, Francisco Javier; Rodas Font, Gil (Institute of Physics (IOP), 2014-12-11)
      Article
      Accés restringit per política de l'editorial
      Muscle injuries in the lower limb are common among professional football players. Classification is made according to severity and is diagnosed with radiological assessment as: grade I (minor strain or minor injury), grade ...
    • Electrical stimulation of cardiac adipose tissue-derived progenitor cells modulates cell phenotype and genetic machinery 

      Llucia Valldeperes, A.; Sanchez, B.; Soler Botija, Carolina; Gálvez Montón, Carolina; Prat Vidal, Cristina; Roura, Santiago; Rosell Ferrer, Francisco Javier; Bragós Bardia, Ramon; Bayés Genis, Antoni (2015-11)
      Article
      Accés obert
      A major challenge of cardiac tissue engineering is directing cells to establish the physiological structure and function of the myocardium being replaced. Our aim was to examine the effect of electrical stimulation on the ...