Results 1 to 10 of about 115,334 (163)

About a dubious proof of a correct result about closed Newton Cotes error formulas

open access: yesOpen Mathematics, 2023
In this study, we comment about a wrong proof, at least incomplete, of the closed Newton Cotes error formulas for integration in a closed interval [a,b].\left[a,b].
López David J.   +4 more
doaj   +1 more source

Proarrhythmic effects of domperidone in infants: a systematic review [PDF]

open access: yesFarmacia Hospitalaria, 2014
Aims: To assess the association of the use of domperidone in infants with QTc interval prolongation and proarrhythmic events. Methods: A systematic search of the scientific literature was conducted without any date or language restriction.
Marta Marzi   +5 more
doaj   +1 more source

On a Nonlinear Three-Point Subdivision Scheme Reproducing Piecewise Constant Functions

open access: yesMathematics, 2022
In this article, a nonlinear binary three-point non-interpolatory subdivision scheme is presented. It is based on a nonlinear perturbation of the three-point subdivision scheme: A new three point approximating C2 subdivision scheme, where the convergence
Sofiane Zouaoui   +3 more
doaj   +1 more source

Analysis of a New Nonlinear Interpolatory Subdivision Scheme on σ Quasi-Uniform Grids

open access: yesMathematics, 2021
In this paper, we introduce and analyze the behavior of a nonlinear subdivision operator called PPH, which comes from its associated PPH nonlinear reconstruction operator on nonuniform grids.
Pedro Ortiz, Juan Carlos Trillo
doaj   +1 more source

A Piecewise Polynomial Harmonic Nonlinear Interpolatory Reconstruction Operator on Non Uniform Grids—Adaptation around Jump Discontinuities and Elimination of Gibbs Phenomenon

open access: yesMathematics, 2021
In this paper, we analyze the behavior of a nonlinear reconstruction operator called PPH around discontinuities. The acronym PPH stands for Piecewise Polynomial Harmonic, since it uses piecewise polynomials defined by means of an adaption based on the ...
Pedro Ortiz, Juan Carlos Trillo
doaj   +1 more source

On the Convexity Preservation of a Quasi C3 Nonlinear Interpolatory Reconstruction Operator on σ Quasi-Uniform Grids

open access: yesMathematics, 2021
This paper is devoted to introducing a nonlinear reconstruction operator, the piecewise polynomial harmonic (PPH), on nonuniform grids. We define this operator and we study its main properties, such as its reproduction of second-degree polynomials ...
Pedro Ortiz, Juan Carlos Trillo
doaj   +1 more source

Future mathematics teachers’ profiles based on their professional competences

open access: yesEnseñanza de las Ciencias, 2020
The aim of this paper is to identify profiles of future teachers in secondary education based on their perception towards the acquisition of competences, relating them with the previous background. By means of an online questionnaire, data were collected
Laura Muñiz-Rodríguez   +2 more
doaj   +1 more source

Use of Neural Networks for Tsunami Maximum Height and Arrival Time Predictions

open access: yesGeoHazards, 2022
Operational TEWS play a key role in reducing tsunami impact on populated coastal areas around the world in the event of an earthquake-generated tsunami.
Juan F. Rodríguez   +4 more
doaj   +1 more source

Multilayer-HySEA model validation for landslide-generated tsunamis – Part 2: Granular slides [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2021
The final aim of the present work is to propose a NTHMP-benchmarked numerical tool for landslide-generated tsunami hazard assessment. To achieve this, the novel Multilayer-HySEA model is validated using laboratory experiment data for landslide-generated ...
J. Macías   +3 more
doaj   +1 more source

Multilayer-HySEA model validation for landslide-generated tsunamis – Part 1: Rigid slides [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2021
This paper is devoted to benchmarking the Multilayer-HySEA model using laboratory experimental data for landslide-generated tsunamis. This article deals with rigid slides, and the second part, in a companion paper, addresses granular slides.
J. Macías   +3 more
doaj   +1 more source

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