Results 41 to 50 of about 1,983 (102)

Language Change Across Real and Apparent‐Time: Case Studies From Yucatan Spanish

open access: yesLanguage and Linguistics Compass, Volume 19, Issue 3, May/June 2025.
ABSTRACT Variationist sociolinguistics possesses two powerful techniques for examining language change across time: real‐time analyses, where the relative distribution of variants is compared for two or more different points in time, and apparent‐time analysis, where different age groups in the same study are taken to represent different stages of ...
Jim Michnowicz
wiley   +1 more source

Glueball masses from an infrared moment problem [PDF]

open access: yes, 2011
We set up an infrared-based moment problem to obtain estimates of the masses of the scalar, pseudoscalar, and tensor glueballs in Euclidean Yang-Mills theories using the refined Gribov-Zwanziger (RGZ) version of the Landau gauge, which takes into account
Dudal, David, Guimaraes, MS, Sorella, SP
core   +3 more sources

Analyticity and Stable Computation of Dirichlet–Neumann Operators for Laplace's Equation Under Quasiperiodic Boundary Conditions in Two and Three Dimensions

open access: yesStudies in Applied Mathematics, Volume 154, Issue 5, May 2025.
ABSTRACT Dirichlet–Neumann operators (DNOs) are important to the formulation, analysis, and simulation of many crucial models found in engineering and the sciences. For instance, these operators permit moving‐boundary problems, such as the classical water wave problem (free‐surface ideal fluid flow under the influence of gravity and capillarity), to be
David P. Nicholls   +2 more
wiley   +1 more source

Revisiting the Relationship Between Induced Polarization and Surface Conductivity: Ratios From Laboratory to Field

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Among the subsurface geophysical methods used in the critical zone investigations, induced polarization (IP) shows great vitality thanks to its unique ability to assess porosity via bulk conduction and estimate permeability through surface conduction and/or polarization.
Youzheng Qi, Yuxin Wu
wiley   +1 more source

Toward Transparency and Consistency: An Open‐Source Optics Parameterization for Clouds and Precipitation

open access: yesJournal of Advances in Modeling Earth Systems, Volume 17, Issue 3, March 2025.
Abstract In this study, a new open‐source package for cloud and precipitation modeling is introduced. Based on Mie theory and existing ice crystal data sets, the scheme generates optical properties for user‐defined gas bands, particle size distribution, and crystal habits, ensuring continuity across wide spectral bands and from small particles (clouds)
Jing Feng, Raymond Menzel, David Paynter
wiley   +1 more source

Accurate and efficient representation of intramolecular energy in ab initio generation of crystal structures. Part III: partitioning into torsional groups

open access: yesActa Crystallographica Section B, Volume 81, Issue 1, Page 114-127, February 2025.
An algorithm for dramatically reducing the number of QM calculations required to derive a flexibility model of molecules, whilst retaining the accuracy necessary for Crystal Structure Prediction, is presented. Torsional group partitioning can make previously inaccessibly large molecules tractable, and molecule 26 from the blind tests, and safinamide ...
Isaac J. Sugden   +5 more
wiley   +1 more source

Rethinking speech sound disorder (SSD) in non‐syndromic cleft lip and palate: The importance of recognizing phonological and language difficulties

open access: yesInternational Journal of Language &Communication Disorders, Volume 60, Issue 1, January/February 2025.
Abstract Background Children born with cleft palate ± lip (CP ± L) are at risk of speech sound disorder (SSD). Up to 40% continue to have SSD at age 5–6 years. These difficulties are typically described as articulatory in nature and often include cleft speech characteristics (CSC) hypothesized to result from structural differences.
Stephanie van Eeden   +2 more
wiley   +1 more source

Machine Learning Approaches for Software Defect Prediction

open access: yesApplied Computational Intelligence and Soft Computing, Volume 2025, Issue 1, 2025.
This paper analyses existing research about machine learning approaches in software defect prediction as a key element for improving software reliability and quality. The paper reviews the use of machine learning algorithms in software defect prediction framework’s bug prediction while assessing their performance across multiple environments.
Hijab Zehra Zaidi   +7 more
wiley   +1 more source

Bivariate High‐Accuracy Hermite‐Type Multiquadric Quasi‐Interpolation Operators

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this paper, a kind of Hermite‐type multiquadric quasi‐interpolation operator is constructed by combining an extended univariate multiquadric quasi‐interpolation operator with a bivariate Hermite interpolation polynomial. Some error bounds in terms of the modulus of continuity of high order and Peano representations for the error are given. Numerical
Ruifeng Wu, Pramita Mishra
wiley   +1 more source

A rational‐Chebyshev projection method for nonlinear eigenvalue problems

open access: yesNumerical Linear Algebra with Applications, Volume 31, Issue 6, December 2024.
Abstract This article describes a projection method based on a combination of rational and polynomial approximations for efficiently solving large nonlinear eigenvalue problems. In a first stage the nonlinear matrix function T(λ)$$ T\left(\lambda \right) $$ under consideration is approximated by a matrix polynomial in λ$$ \lambda $$.
Ziyuan Tang, Yousef Saad
wiley   +1 more source

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