Enviaments recents

  • Convolutional code theory based steganography technique 

    García Planas, María Isabel; Um, Laurence Emilie (2022-03-11)
    Article
    Accés obert
    Steganography, as it is known, is a technique to hide a secret message within a message or collection of data that is not secret, and a problem in mathematics is to decipher the secret included in the message, to solve ...
  • Anxiety Disorder Caused by Learning Difficulties in Mathematics 

    García Planas, María Isabel; García-Camba Vives, María Victoria (2022-09)
    Article
    Accés obert
    One of the brain disorders causing great damage to those who suffer from it is dyscalculia. Dyscalculia often causes math anxiety. This circumstance is characterized by feelings of tension and fear that interfere with ...
  • Controllability of brain neural networks in learning disorders—a geometric approach 

    García Planas, María Isabel; García-Camba Vives, María Victoria (Multidisciplinary Digital Publishing Institute (MDPI), 2022-01)
    Article
    Accés obert
    The human brain can be interpreted mathematically as a linear dynamical system that shifts through various cognitive regions promoting more or less complicated behaviors. The dynamics of brain neural network play a ...
  • Geometric structure of the set of pairs of matrices under simultaneous similarity 

    García Planas, María Isabel (Universal Journal of Mathematics and Applications, 2021-11-19)
    Article
    Accés obert
    In this paper pairs of matrices under similarity are considered because of their scientific applications, especially pairs of matrices being simultaneously diagonalizable. For example, a problem in quantum mechanics is the ...
  • Controllability subspaces of multi-agent linear dynamical systems 

    García Planas, María Isabel (WSEAS Press, 2021-07)
    Article
    Accés obert
    This work addresses the controllability subspaces of a class of multi-agent linear systems that are interconnected via communication channels. Multiagent systems have attracted much attention because they have great ...
  • A coordinate atlas of the manifold of observable conditioned invariant subspaces 

    Puerta Sales, Ferran; Puerta Coll, Xavier; Zaballa, I (2001-02)
    Article
    Accés obert
    Given an observable system (C,A) € Km×n×Kn×n with K = R or C , the set of (C,A)- invariant subspaces having the restricted system fixed observability indices is a smooth manifold embedded on the corresponding Grassmannian. ...
  • Introducing and Evaluating the Effective Inclusion of Gender Dimension in STEM Higher Education 

    Peña Carrera, Marta; Olmedo Torre, Noelia; Mas de les Valls Ortiz, Elisabet; Lusa García, Amaia (2021-04-29)
    Article
    Accés obert
    The need to incorporate the gender dimension in higher education is a central element of gender equality policies within the European Union (EU). When most institutions of higher education have already strengthened and ...
  • Convolutional codes and steganography under linear systems theoretical point of view 

    García Planas, María Isabel; Um, Laurence Emilie; Soudi, El Mamoun; El Jouhari, Houda (2020-11)
    Article
    Accés obert
    In this work, we introduce an application of convolutional coding theory in steganography. As it is known, block codes are largely used for dissimulation of information using the steganographic process. Here, we suggest a ...
  • Analyzing control properties of multiagent linear systems 

    García Planas, María Isabel (2020-09-30)
    Article
    Accés obert
    The networked multi-agent systems that they are interconnected via communication channels have great applicability in multiple areas, such as power grids, bioinformatics, sensor networks, vehicles, robotics and neuroscience, ...
  • Effectiveness of blended instructional design based on active learning in a graphic engineering course 

    Olmedo Torre, Noelia; Martínez Martínez, María; Peña Carrera, Marta (2020-09-22)
    Article
    Accés obert
    Encouraging the use of active-learning methodologies, both inside and outside the classroom by means of planned activities, is a key factor in effective learning, as well as being essential for students to achieve the goals ...
  • Transición de la docencia presencial a la no presencial en la UPC durante la pandemia del COVID-19 

    García Planas, María Isabel; Taberna Torres, Judit (2021)
    Article
    Accés obert
    Ante el inesperado estado de alarma decretado con motivo de la pandemia producida por el Covid-19, las universidades españolas se han visto obligadas a adaptar la docencia a esta situación, utilizando como medio principal ...
  • State canonical form for a class of uncontrollable linear systems 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (Taylor & Francis, 2019-10-16)
    Article
    Accés obert
    We tackle the obtaining of canonical forms for classifying linear control systems with regard to changes in the state variables. Although it was solved in the 1980s for controllable systems, it is still an open problem for ...

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