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Articles (Departament de Tecnologies de la Informació i les Comunicacions)

Articles (Departament de Tecnologies de la Informació i les Comunicacions)

 

Articles de recerca, en accés obert, del Departament de Tecnologies de la Informació i de les Comunicacions de la UPF.

Recent Submissions

  • Pagliarini, Elena; Scocchia, Lisa; Vernice, Mirta; Zoppello, Marina; Balottin, Umberto; Bouamama, Sana; Guasti, Maria Teresa; Stucchi, Natale (Nature Research, 2017)
    Although much research has been concerned with the development of kinematic aspects of handwriting, little is known about the development along with age of two principles that govern its rhythmic organization: Homothety ...
  • Torres Hernandez, Anthony; Brambila Paz, Fernando (AIRCC Publishing Corporation, 2021)
    The Newton-Raphson (N-R) method is useful to find the roots of a polynomial of degree n, with n ∈ N. However, this method is limited since it diverges for the case in which polynomials only have complex roots if a real initial ...
  • Torres Hernandez, Anthony (Horizon Research Publishing, 2021)
    In this paper an approximation to the zeros of the Riemann zeta function has been obtained for the first time using a fractional iterative method which originates from a unique feature of the fractional calculus. This ...
  • Torres Hernandez, Anthony (AIRCC Publishing Corporation, 2022)
    The following paper presents a way to define and classify a family of fractional iterative methods through a group of fractional matrix operators, as well as a code written in recursive programming to implement a variant ...
  • Torres Hernandez, Anthony; Brambila Paz, Fernando; Iturrarán Viveros, Ursula; Caballero Cruz, Reyna (MDPI, 2021)
    In the following paper, we present a way to accelerate the speed of convergence of the fractional Newton–Raphson (F N–R) method, which seems to have an order of convergence at least linearly for the case in which the order ...
  • Torres Hernandez, Anthony; Brambila Paz, Fernando (MDPI, 2021)
    Considering the large number of fractional operators that exist, and since it does not seem that their number will stop increasing soon at the time of writing this paper, it is presented for the first time, as far as the ...
  • Nakaki, Ayako; Urru, Andrea; Piella Fenoy, Gemma; Comte, Valentin; Pozo Mendoza, Óscar J., 1975-; Gómez-Gómez, Àlex; González Ballester, Miguel Ángel, 1973-; Gratacós Solsona, Eduard (Elsevier, 2023)
    Background: Maternal suboptimal nutrition and high stress levels are associated with adverse fetal and infant neurodevelopment. Objective: This study aimed to investigate if structured lifestyle interventions involving a ...
  • Torres Hernandez, Anthony; Brambila Paz, Fernando; Ramírez, Rafael, 1966- (MDPI, 2024)
    This paper presents the construction of a family of radial functions aimed at emulating the behavior of the radial basis function known as thin plate spline (TPS). Additionally, a method is proposed for applying fractional ...
  • Miniussi, Carlo; Harris, Justin A.; Ruzzoli, Manuela (Elsevier, 2013)
    Non-invasive brain stimulation (NIBS) is a method for the study of cognitive function that is quickly gaining popularity. It bypasses the correlative approaches of other imaging techniques, making it possible to establish ...
  • Melià Seguí, Joan; Garcia-Alfaro, Joaquin; Herrera-Joancomartí, Jordi (MDPI, 2013)
    Pseudorandom number generation (PRNG) is the main security tool in low-cost passive radio-frequency identification (RFID) technologies, such as EPC Gen2. We present a lightweight PRNG design for low-cost passive RFID tags, ...
  • Santolin, Chiara; Zacharaki, Konstantina; Toro Soto, Juan Manuel, 1976-; Sebastian-Galles, Nuria (Elsevier, 2024)
    Syllables are one of the fundamental building blocks of early language acquisition. From birth onwards, infants preferentially segment, process and represent the speech into syllable-sized units, raising the question of ...
  • Do, Heedong; Le, Namyoon; Lozano Solsona, Angel (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    This paper deals with line-of-sight (LOS) MIMO communication via an intelligent reflecting surface (IRS). It is shown that the number of spatial degrees of freedom (DOF) afforded by this setting grows in proportion with ...
  • Mojahedian, Mohammad M.; Lozano Solsona, Angel (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    An approach is presented to compute the capacity-achieving precoder and receiver for wide-aperture MIMO with uniform linear arrays in O(N2min) operations as opposed to the O(N2minNmax) required by the singular-value ...
  • Do, Heedong; Lee, Namyoon; Lozano Solsona, Angel (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Motivated by the widespread adoption of the parabolic wavefront model for line-of-sight (LOS) multiple-input multiple-output (MIMO) communication, this paper presents a comprehensive analysis of this model’s validity and ...
  • Ruffini, Giulio; Lopez-Sola, Edmundo; Vohryzek, Jakub; Sanchez Todo, Roser (MDPI, 2024)
    We explore the intersection of neural dynamics and the effects of psychedelics in light of distinct timescales in a framework integrating concepts from dynamics, complexity, and plasticity. We call this framework neural ...
  • Garriga, Roger; Gómez Cerdà, Vicenç; Lugosi, Gábor (Frontiers, 2024)
    Introduction: Individuals in the midst of a mental health crisis frequently exhibit instability and face an elevated risk of recurring crises in the subsequent weeks, which underscores the importance of timely intervention ...
  • Theophilou, Emily; Hernández Leo, Davinia; Gómez, Vicenç (Wiley, 2023)
    Background:Gender differences in the use of educational environments and socialmedia platforms have been a topic of interest in research. Several studies have exam-ined the disparities between female and male participants ...
  • Martins, Pedro; Boeckx, Cedric (Frontiers, 2014)
    There is still no categorical answer as to why humans, and no other species, have speech, or why speech is the way it is. Several purely anatomical arguments have been put forward, but they have been shown to be false, ...
  • Larrabide, Ignacio, 1978-; Aguilar, María Laura; Morales, Hernán G.; Geers, Adrianus Johannes; Kulcsár, Zsolt; Rüfenacht, Daniel; Frangi Caregnato, Alejandro (American Society of Neuroradiology, 2013)
    Background and purpose: Effects of blood flow modification by flow diverters are observed to lead often to aneurysm thrombosis and reverse remodeling. For this process, to further understand the potential roles of ...
  • Lange, Matthias; Di Marco, LY; Lekadir, Karim, 1977-; Lassila, Toni; Frangi Caregnato, Alejandro (Public Library of Science (PLoS), 2016)
    False tendons (FTs) are fibrous or fibromuscular bands that can be found in both the normal and abnormal human heart in various anatomical forms depending on their attachment points, tissue types, and geometrical properties. ...

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