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Convolutional code theory based steganography technique
(2022-03-11)
Article
Open AccessSteganography, 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
(2022-09)
Article
Open AccessOne 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
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-01)
Article
Open AccessThe 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
(Universal Journal of Mathematics and Applications, 2021-11-19)
Article
Open AccessIn 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
(WSEAS Press, 2021-07)
Article
Open AccessThis 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
(2001-02)
Article
Open AccessGiven 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
(2021-04-29)
Article
Open AccessThe 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
(2020-11)
Article
Open AccessIn 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
(2020-09-30)
Article
Open AccessThe 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
(2020-09-22)
Article
Open AccessEncouraging 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
(2021)
Article
Open AccessAnte 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
(Taylor & Francis, 2019-10-16)
Article
Open AccessWe 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 ...