Browsing by Author "García Ojalvo, Jordi"

Sort by: Order: Results:

  • Muñoz Descalzo, Silvia; Rué, Pau; Faunes, Fernando; Hayward, Penelope; Jakt, Lars Martin; Balayo, Tina; García Ojalvo, Jordi; Martínez Arias, Alfonso (Nature Publishing Group, 2013)
    Pluripotency in embryonic stem cells is maintained through the activity of a small set of transcription factors centred around Oct4 and Nanog, which control the expression of 'self-renewal' and 'differentiation' genes. ...
  • García Ojalvo, Jordi (Nature Research, 2019)
    A large-scale imaging study has tracked thousands of bacteria living in three-dimensional biofilms. This technical tour de force reveals the importance of mechanical interactions between cells for building local and global ...
  • Ibáñez Soria, David, 1983- (Universitat Pompeu Fabra, 2018-09-13)
    In the last decade recurrent neural networks have revolutionized the field of artificial intelligence. Their cyclic connections provide them with memory and thus with the capability of modeling processes with temporal ...
  • Martínez Corral, Rosa; Liu, Jintao; Süel, Gürol M.; García Ojalvo, Jordi (National Academy of Sciences, 2018)
    Biofilm communities of Bacillus subtilis bacteria have recently been shown to exhibit collective growth-rate oscillations mediated by electrochemical signaling to cope with nutrient starvation. These oscillations emerge ...
  • Ibáñez Soria, David, 1983-; Soria Frisch, Aureli; García Ojalvo, Jordi; Ruffini, Giulio (Public Library of Science (PLoS), 2019)
    State Visual Evoked Potentials (SSVEPs) arise from a resonance phenomenon in the visual cortex that is produced by a repetitive visual stimulus. SSVEPs have long been considered a steady-state response resulting from purely ...
  • Balenzuela, Pablo; Rué, Pau; Boccaletti, Stefano; García Ojalvo, Jordi (IOP Publishing, 2014)
    Coupling frequently enhances noise-induced coherence and synchronization in interacting nonlinear systems, but it does so separately. In principle collective stochastic coherence and synchronizability are incompatible ...
  • Soriano, Miguel C.; García Ojalvo, Jordi; Mirasso, Claudio R.; Fischer, Ingo (American Physical Society, 2013)
    Complex phenomena in photonics, in particular, dynamical properties of semiconductor lasers due to delayed coupling, are reviewed. Although considered a nuisance for a long time, these phenomena now open interesting ...
  • Manubens-Gil, Linus, 1989- (Universitat Pompeu Fabra, 2018-01-18)
    During the last century the nervous system has been mainly studied from a reductionistic approach, based on the hypothesis that understanding in depth single neurons or limited neuronal populations would lead to general ...
  • Malagarriga, Daniel; Villa, Alessandro E. P.; García Ojalvo, Jordi; Pons, Antonio J. (American Institute of Physics (AIP), 2017)
    Synchronization within the dynamical nodes of a complex network is usually considered homogeneous through all the nodes. Here we show, in contrast, that subsets of interacting oscillators may synchronize in different ways ...
  • Jedynak, Maciej; Pons, Antonio J.; García Ojalvo, Jordi (Frontiers, 2015)
    The brain is known to operate in multiple coexisting frequency bands. Increasing experimental evidence suggests that interactions between those distinct bands play a crucial role in brain processes, but the dynamical ...
  • Ibáñez-Soria, D.; García Ojalvo, Jordi; Soria Frisch, Aureli; Ruffini, G. (American Institute of Physics (AIP), 2018)
    Generalized synchronization between coupled dynamical systems is a phenomenon of relevance in applications that range from secure communications to physiological modelling. Here, we test the capabilities of reservoir ...
  • Quintero-Quiroz, Carlos; Montesano, Luis; Pons, Antonio J.; Torrent, Maria Carme; García Ojalvo, Jordi; Masoller, Cristina (American Institute of Physics (AIP), 2018)
    Symbolic methods of analysis are valuable tools for investigating complex time-dependent signals. In particular, the ordinal method defines sequences of symbols according to the ordering in which values appear in a time ...
  • Guisoni, Nara; Martínez Corral, Rosa; García Ojalvo, Jordi; de Navascués, Joaquín (Company of Biologists, 2017)
    Cell fate determination by lateral inhibition via Notch/Delta signalling has been extensively studied. Most formalised models consider Notch/Delta interactions in fields of cells, with parameters that typically lead to ...
  • Tiana Alsina, Jordi; García López, H; Torrent, Maria Carme; García Ojalvo, Jordi (American Institute of Physics (AIP), 2011)
    We study experimentally the synchronization dynamics of two semiconductor lasers coupled unidirectionally via two different delayed paths. The emitter laser operates in a chaotic regime characterized by low-frequency ...
  • Martínez Pasamar, Sara; Abad Adan, Elena; Moreno, Beatriz; Vélez de Mendizábal, Nieves; Martínez Forero, Ivan; García Ojalvo, Jordi; Villoslada, Pablo (BioMed Central, 2013)
    Background: Multiple Sclerosis (MS) is considered a T-cell-mediated autoimmune disease with a prototypical oscillatory behavior, as evidenced by the presence of clinical relapses. Understanding the dynamics of immune cells ...
  • Galera Laporta, Letícia, 1985- (Universitat Pompeu Fabra, 2019-02-08)
    Bacterial proliferation has been studied for more than 100 years, but our knowledge of the mechanisms that control its dynamical aspects is still very limited. In this Thesis we have studied, at both singlecell and population ...
  • Sen, Shaunak; García Ojalvo, Jordi; Elowitz, Michael B. (Public Library of Science (PLoS), 2011)
    Under conditions of nutrient limitation, Bacillus subtilis cells terminally differentiate into a dormant spore state. Progression to sporulation is controlled by a genetic circuit consisting of a phosphorelay embedded in ...
  • Kotelnikova, Ekaterina; Kiani, Narsis A.; Abad Adan, Elena; Martínez Lapiscina, Elena H.; Andorra, Magi; Zubizarreta, Irati; Pulido Valdeolivas, Irene; Pertsovskaya, Inna; Alexopoulos, Leonidas G.; Olsson, Tomas; Martin, Roland; Paul, Friedemann; Tegnér, Jesper; García Ojalvo, Jordi; Villoslada, Pablo (Public Library of Science (PLoS), 2017)
    Multiple Sclerosis (MS) is an autoimmune disease driving inflammatory and degenerative processes that damage the central nervous system (CNS). However, it is not well understood how these events interact and evolve to evoke ...
  • Sirec, Teja; Benarroch, Jonatan M.; Buffard, Pauline; García Ojalvo, Jordi; Asally, Munehiro (Elsevier, 2019)
    Quality control of offspring is important for the survival of cells. However, the mechanisms by which quality of offspring cells may be checked while running genetic programs of cellular differentiation remain unclear. ...
  • Sancristóbal, Belen; Vicente, Raoul; Sancho, José María; García Ojalvo, Jordi (Frontiers, 2013)
    Upon sensory stimulation, primary cortical areas readily engage in narrow-band rhythmic activity between 30 and 90 Hz, the so-called gamma oscillations. Here we show that, when embedded in a balanced network, type-I excitable ...