Results 101 to 110 of about 6,501 (223)

THE CONSTRAINED LOCALLY CORRECTED NYSTRÖM METHOD

open access: yes, 2015
In this dissertation a generalization of the locally corrected Nyström (LCN) discretization method is outlined wherein sparse transformations of the LCN system matrix are obtained via singular value decompositions of local constraint matrices.
Hendijani, Nastaran
core  

An efficient Nyström scheme for solving volume integral equations

open access: yes, 2009
An efficient Nyström scheme is developed for solving three-dimensional (3D) electromagnetic (EM) problems by volume integral equations (VIEs). Although the surface integral equations (SIEs) are preferred whenever available, the VIEs are important and ...
Qian, ZG   +5 more
core   +1 more source

Genome Sequencing in 19 Families With Bladder Exstrophy and Epispadias Complex Indicates Involvement of the ADGR ‐Gene Family

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 6, Page 1286-1305, June 2026.
ABSTRACT Bladder exstrophy and epispadias complex (BEEC) is one of the most severe congenital malformations of the urogenital tract, significantly impacting continence, sexual function, and renal function. To date, the only recurrent genetic aberration identified is the 22q.11.2 microduplication, but several candidate regions and genes including ...
Agneta Nordenskjöld   +9 more
wiley   +1 more source

Fast rapidly convergent penetrable scattering computations

open access: yesAdvanced Modeling and Simulation in Engineering Sciences
We present a fast high-order scheme for the numerical solution of a volume-surface integro-differential equation. Such equations arise in problems of scattering of time-harmonic acoustic and electromagnetic waves by inhomogeneous media with variable ...
Jagabandhu Paul   +3 more
doaj   +1 more source

New Phase-Fitted and Amplification-Fitted Fourth-Order and Fifth-Order Runge-Kutta-Nyström Methods for Oscillatory Problems

open access: yesAbstract and Applied Analysis, 2013
Two new Runge-Kutta-Nyström (RKN) methods are constructed for solving second-order differential equations with oscillatory solutions. These two new methods are constructed based on two existing RKN methods.
K. W. Moo   +3 more
doaj   +1 more source

Asymptotic Expansions for Approximate Solutions of Hammerstein Integral Equations with Green's Function Type Kernels

open access: yesMathematical Modelling and Analysis, 2014
We consider approximation of a nonlinear Hammerstein equation with a kernel of the type of Green's function using the Nyström method based on the composite midpoint and the composite modified Simpson rules associated with a uniform partition.
Rekha P. Kulkarni, Akshay S. Rane
doaj   +1 more source

Visual Search Performance in Children With ASD: A Combined Case‐Control and Longitudinal Study

open access: yesAutism Research, Volume 19, Issue 6, June 2026.
ABSTRACT Autism Spectrum Disorder (ASD) is associated with altered attentional function. This has been associated with enhanced visual search performance. Addressing a gap in the literature, we investigate the longitudinal development of visual search alongside ASD symptoms.
Naisan Raji   +9 more
wiley   +1 more source

Nyström method for elastic wave scattering by three-dimensional obstacles

open access: yes, 2007
Nyström method is developed to solve for boundary integral equations (BIE's) for elastic wave scattering by three-dimensional obstacles. To generate the matrix equation from a BIE, Nyström method applies a quadrature rule to the integrations of smooth ...
Tong, MS, Chew, WC
core   +1 more source

Fish Introductions Reshape Antipredator Sensitivity in Rana temporaria Tadpoles Across Alpine Lakes

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
Introduced fish can alter predator–prey interactions in alpine lakes. We show that Rana temporaria tadpoles exposed to fish‐associated environments exhibit increased sensitivity to predation risk. These findings highlight how biological invasions reshape antipredator behavior across ecological contexts.
Giorgia Mattioli   +8 more
wiley   +1 more source

Approximation of Positive Semidefinite Matrices Using the Nyström Method

open access: yes, 2011
Positive semidefinite matrices arise in a variety of fields, including statistics, signal processing, and machine learning. Unfortunately, when these matrices are high-dimensional and/or must be operated upon many times, expensive calculations such as ...
Arcolano, Nicholas Francis
core  

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