BackExaminar Artículos por departamento (eus.) "Matematika"
Now showing items 1-20 of 51
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A Fair and Scalable Mechanism for Resource Allocation: The Multilevel QPQ Approach
(IEEE, 2020-12-29)In this paper the problem of distributing resources among a collection of users (or players) is explored. These players have independent preferences to get these resources and can be dishonest about their preferences in ... -
A Machine Learning Model for the Prognosis of Pulseless Electrical Activity during Out-of-Hospital Cardiac Arrest
(MDPI, 2021-06-30)Pulseless electrical activity (PEA) is characterized by the disassociation of the mechanical and electrical activity of the heart and appears as the initial rhythm in 20–30% of out-of-hospital cardiac arrest (OHCA) cases. ... -
Advances in Nonlinear Complexity Analysis for Partial Differential Equations
(Hindawi Publishing Corporation, 2013)... -
Age of Information of a Server with Energy Requirements
(PeerJ, 2021-03-01)We investigate a system with Poisson arrivals to two queues. One queue stores the status updates of the process of interest (or data packets) and the other handles the energy that is required to deliver the updates to the ... -
Age of Information of Parallel Server Systems with Energy Harvesting
(MDPI, 2021-11-21)Motivated by current communication networks in which users can choose different transmission channels to operate and also by the recent growth of renewable energy sources, we study the average Age of Information of a status ... -
An Uncertainty Principle for Solutions of the Schrödinger Equation on H-Type Groups
(Cambridge University Press, 2020-04-02)In this paper we consider uncertainty principles for solutions of certain partial differential equations on H -type groups. We first prove that, on H -type groups, the heat kernel is an average of Gaussians in the central ... -
Assessment of Biomass Energy Potential and Forest Carbon Stocks in Biscay (Spain)
(MDPI, 2016-03)The aim of this research is to identify, quantify and characterize the potential available forest biomass of Pinus radiata D. Don and Eucalyptus globulus Labill. across Biscay province in northern Spain. In order to do ... -
Associative Conditioning Is a Robust Systemic Behavior in Unicellular Organisms: An Interspecies Comparison
(Frontiers Media, 2021-07-19)The capacity to learn new efficient systemic behavior is a fundamental issue of contemporary biology. We have recently observed, in a preliminary analysis, the emergence of conditioned behavior in some individual amoebae ... -
Autofluorescence Image Reconstruction and Virtual Staining for In-Vivo Optical Biopsying
(IEEE-Institute of Electrical and Electronics Engineers, 2021-02-22)Modern photonic technologies are emerging, allowing the acquisition of in-vivo endoscopic tissue imaging at a microscopic scale, with characteristics comparable to traditional histological slides, and with a label-free ... -
Automatic Analysis of Archimedes’ Spiral for Characterization of Genetic Essential Tremor Based on Shannon’s Entropy and Fractal Dimension
(MDPI, 2018-07)Among neural disorders related to movement, essential tremor has the highest prevalence; in fact, it is twenty times more common than Parkinson's disease. The drawing of the Archimedes' spiral is the gold standard test to ... -
Bearing Assessment Tool for Longitudinal Bridge Performance
(Springer, 2020-11)This work provides an unsupervised learning approach based on a single-valued performance indicator to monitor the global behavior of critical components in a viaduct, such as bearings. We propose an outlier detection ... -
Binormal Motion of Curves with Constant Torsion in 3-Spaces
(Hindawi, 2017)We study curve motion by the binormal flow with curvature and torsion depending velocity and sweeping out immersed surfaces. Using the Gauss-Codazzi equations, we obtain filaments evolving with constant torsion which arise ... -
CALE: Learning by Example in Mathematics with Applets in Mathematical Computational Packages
(MDPI, 2018-10-28)In this work we present a methodology of “learning by example” assisted by computers in the study of mathematics. We propose the use of mathematical computational packages to program applets aimed to solve mathematical ... -
Cell Motility and Cancer
(MDPI, 2020-08-05)Cell migration is an essential systemic behavior, tightly regulated, of all living cells endowed with directional motility that is involved in the major developmental stages of all complex organisms such as morphogenesis, ... -
Changes in health-related quality of life as a marker in the prognosis in COPD patients
(European Respiratory Society, 2022-01)[EN] Chronic obstructive pulmonary disease (COPD) is understood as a complex, heterogeneous and multisystem airway obstructive disease. The association of deterioration in health-related quality of life (HRQoL) with mortality ... -
Changes in the simulation of atmospheric instability over the Iberian Peninsula due to the use of 3DVAR data assimilation
(Copernicus Publications, 2021-06-18)[EN] Abstract. The ability of two downscaling experiments to correctly simulate thermodynamic conditions over the Iberian Peninsula (IP) is compared in this paper. To do so, three parameters used to evaluate the unstable ... -
Children’s Pictorial Expression of Plant Life and Its Connection with School-Based Greenness
(MDPI, 2021-04-29)Previous research highlights the positive influence that experiences in nature have on children’s physical, emotional and conceptual development. There is also evidence that indicates that the availability of green areas ... -
Cohomologically Kähler manifolds with no Kähler metrics
(Hindawi Publishing Corporation, 2003)We show some examples of compact symplectic solvmanifolds, of dimension greater than four, which are cohomologically Kähler and do not admit Kähler metric since their fundamental groups cannot be the fundamental group ... -
Constant mean curvature hypersurfaces with constant δ-invariant
(Hindawi Publishing Corporation, 2003)We completely classify constant mean curvature hypersurfaces (CMC) with constant δ-invariant in the unit 4-sphere S4 and in the Euclidean 4-space E4. -
Convexity properties of discrete Schrödinger evolutions
(Springer Nature, 2019-07-01)In this paper, we give log-convexity properties for solutions to discrete Schrödinger equations with different discrete versions of Gaussian decay at two different times. For free evolutions, we use complex analysis arguments ...