Results 141 to 150 of about 8,772,119 (248)

Firm Productivity and Exit During Economic Crisis: Does Market Potential Foster Resilience?

open access: yesJournal of Regional Science, EarlyView.
ABSTRACT This paper examines the relationship between firm productivity, market potential, and firm exit over the economic cycle, focusing on the COVID‐19 crisis. Using Spanish firm‐level data (2011–2022), we analyse how market potential shapes the link between productivity and survival.
Sabine D'Costa, Adelheid Holl
wiley   +1 more source

WHAT ONCE WAS SHALL BE AGAIN: PALAEOLITHIC BIFACES AT THE NEOLITHIC SITE OF GIV'AT RABI EAST

open access: yesOxford Journal of Archaeology, EarlyView.
Summary Giv'at Rabi East is a Pre‐Pottery Neolithic B site located in northern Israel, interpreted as a flint workshop. One area has been spatially identified as a ‘biface locality’; it is characterized by the presence of finished axes and preforms alongside débitage. Interestingly, Acheulean bifaces have also been recovered from this area.
Ella Assaf
wiley   +1 more source

Solvability of nonlinear differential systems with coupled nonlocal boundary conditions

open access: yes, 2016
This article shows the existence of at least one solution to nonlinear differential systems with coupled nonlocal boundary conditions on an infinite interval.
Jeongmi Jeong   +2 more
core  

A Stable Formulation for Wave‐Induced Fracture in Peridynamics

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT The bond‐associated quadrature point formulation is a very accurate peridynamic formulation for elasticity, but modeling fracture by the traditional deletion of bonds can trigger severe numerical instabilities. These instabilities are most pronounced for wave‐induced fracture, where stress waves continue to propagate through already damaged ...
Kai Partmann   +3 more
wiley   +1 more source

Four Decades of Research at the MADE Site and Beyond: Advancing the Understanding and Modeling of Solute Transport in Heterogeneous Media

open access: yesReviews of Geophysics, Volume 64, Issue 4, December 2026.
Abstract Spatial heterogeneity, manifested as strong variability in hydraulic conductivity (K) within geological formations, exerts a fundamental control on groundwater flow and solute transport. Because K can vary over multiple orders of magnitude in complex three‐dimensional patterns, predicting contaminant plume migration remains a long‐standing ...
Zhilin Guo   +8 more
wiley   +1 more source

Modulating Covalent Organic Framework Nanochannel Microenvironments for Sustainable Hydrogen Peroxide Photosynthesis

open access: yesAngewandte Chemie, Volume 138, Issue 44, 26 October 2026.
Alkoxy side chains regulate hydrazone‐linked COF nanochannel microenvironments by tuning pore polarity, reactant adsorption, and charge‐separation behavior. The optimized framework facilitates oxygen activation and hydrogen peroxide photosynthesis in real water and a 1 L natural‐sunlight reactor. LCA further shows that natural sunlight and larger‐scale
Ruixue Sun   +11 more
wiley   +2 more sources

Tensor‐Train Compression of a Volume Integral Eddy Current Problem in Discontinuous Galerkin

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 21, 15 November 2026.
ABSTRACT The paper presents a low‐rank tensor compression strategy based on the tensor‐train (TT) format for the integral operator arising in eddy current problems. Unlike classical matrix compression techniques such as the fast multipole method (FMM) or hierarchical matrices (ℋ$$ \mathscr{H} $$‐matrices), which typically compress only far‐field ...
Anthony Torosyan   +5 more
wiley   +1 more source

Challenges in nonlocal modeling: nonlocal boundary conditions and nonlocal interfaces.

open access: yesProposed for presentation at the WCCM 2020 held January 11-15, 2021 in Virtual., 2020
openaire   +2 more sources

Mechanistic Insights Into Zn‐Promoted CO2 Electroreduction on α‐CuZn Alloys in Aprotic Media

open access: yesChemSusChem, Volume 19, Issue 21, 12 November 2026.
Elucidating nonaqueous CO2 reduction: Zinc boosts copper activity by tuning surface interactions for improved CO2 activation. How Zn enhances the performance of Cu electrocatalysts for CO2${\mathrm{CO}}_{2}$RR in nonaqueous electrolytes remains an open question.
Niklas Oppel   +5 more
wiley   +1 more source

Multiple Solutions of a Nonlocal Problem with Nonlinear Boundary Conditions

open access: yes
In this article, we consider a class of nonlocal p(x)-Laplace equations with nonlinear boundary conditions. When the nonlinear boundary involves critical exponents, using the concentration compactness principle, mountain pass lemma, and fountain theorem,
Qing Miao, Jie Liu
core   +1 more source

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