Results 81 to 90 of about 6,501 (223)

Attenuated selective attention during visual perspective taking in autism: A combined behavior, ERP, and pupillometry study

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Altered social cognition in autism may be influenced by difficulties in domain‐general functions, such as selective attention. Here, we manipulated the requirement for selective attention during a visual perspective taking (VPT) task and used neurophysiological indices to delineate underlying mechanisms.
Leonie Polzer   +7 more
wiley   +1 more source

A priori Nyström-method error bounds in approximate solutions of 1-D Fredholm integro-differential equations

open access: yesInternational Journal of Mechanical Sciences, 2019
A novel procedure is proposed for the a priori computation of error bounds for the ubiquitous Nystrom solver applied to one-dimensional Fredholm integro-differential equations.
Abigail I. Fairbairn, M. Kelmanson
semanticscholar   +1 more source

The Numerical Solution of Volterra Integral Equations

open access: yesAxioms
Recently we studied a collocation–quadrature method in weighted L2 spaces as well as in the space of continuous functions for a Volterra-like integral equation of the form u(x)−∫αx1h(x−αy)u(y)dy=f(x ...
Peter Junghanns
doaj   +1 more source

Optimal Portfolio Choice With Cross‐Impact Propagators

open access: yesMathematical Finance, EarlyView.
ABSTRACT We consider a class of optimal portfolio choice problems in continuous time where the agent's transactions create both transient cross‐impact driven by a matrix‐valued Volterra propagator, as well as temporary price impact. We formulate this problem as the maximization of a revenue‐risk functional, where the agent also exploits available ...
Eduardo Abi Jaber   +2 more
wiley   +1 more source

Numerical analysis of structure preserving Nyström methods for Hamiltonian systems

open access: yes, 2005
Energy conservation is an essential property of conservative mechanical systems that should be carried over to the numerical solution. Betsch and Steinmann proposed recently perturbed potentials to achieve energy conservation in the time integration of N-
Pfeiffer, Andreas, Arnold, Martin
core  

Lack of Hydraulic Acclimation in Response to Multiple Droughts and Recovery

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Human‐caused climate change is expected to bring more frequent and extended droughts with shorter wet periods of relief in between for many regions of the world. Critical knowledge gaps remain around the extent to which tree species can acclimate physiologically to repeated droughts.
Jaycie C. Fickle   +4 more
wiley   +1 more source

A three-stage dispersion and dissipation of order infinity Runge-Kutta-Nyström method for periodic IVPs [PDF]

open access: yes, 2013
In this paper, a new three-stage Runge-Kutta-Nyström (RKN) method with two variable coefficients is constructed. The new method is based on Garcia's RKN method of algebraic order four.
Senu, Norazak   +3 more
core   +1 more source

Fast Root-MUSIC Algorithm Based on Nystrom Method and Spectral Factorization

open access: yes, 2018
A fast Root-MUSIC algorithm based on Nyström method and spectral factorization is proposed. By using Nyström method, only two sub-matrices of the sample covariance matrix are calculated, which avoids complete calculation and has the advantage of low ...
XiaoYu Liu, Junli Chen, Lveqiu Xu
semanticscholar   +1 more source

Long‐term stability of vertical bone augmentation in implant dentistry: A domain‐based review

open access: yesPeriodontology 2000, EarlyView.
Abstract Objectives Vertical ridge deficiency remains one of the most challenging conditions in preimplant surgery. Several techniques aim to restore lost vertical alveolar height, each with specific indications and limitations. Although these procedures often yield favorable short‐term outcomes with stable bone levels, their long‐term performance is ...
Istvan Urban   +7 more
wiley   +1 more source

Observations on the Nyström Method for Gaussian Process Prediction

open access: yes, 2002
A number of methods for speeding up Gaussian Process (GP) prediction have been proposed, including the Nyström method of Williams and Seeger (2001).
Williams, C.   +3 more
core  

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