Results 61 to 70 of about 4,417 (247)

Nonexistence of solutions for quasilinear elliptic equations with p-growth in the gradient

open access: yesElectronic Journal of Differential Equations, 2002
We study the nonexistence of weak solutions in $W^{1,p}_{{ m loc}}(Omega)$ for a class of quasilinear elliptic boundary-value problems with natural growth in the gradient.
Darko Zubrinic
doaj  

Coupled Fluid–Structure–Acoustic Analysis of Flow‐Induced Noise Control Using an Elastic Baffle in a Micro Channel

open access: yesEnergy Science &Engineering, EarlyView.
This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi   +5 more
wiley   +1 more source

Cytotoxicity of 19 Pesticides in Rainbow Trout Gill, Liver, and Intestinal Cell Lines

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract The rainbow trout gill cell line (RTgill‐W1), via test guideline 249 of the Organisation for Economic Co‐operation and Development, has been established as a promising New Approach Methodology, although to advance confidence in the method more case studies are needed that: 1) expand our understanding of applicability domains (chemicals with ...
Sophie Emberley‐Korkmaz   +4 more
wiley   +1 more source

Nonexistence results for weighted p-Laplace equations with singular nonlinearities

open access: yesElectronic Journal of Differential Equations, 2019
In this article we present some nonexistence results concerning stable solutions to the equation $$ \hbox{div}\big(w(x)|\nabla u|^{p-2}\nabla u\big) =g(x)f(u)\quad \text{in }\mathbb{R}^N,\;p\geq 2 $$ when f(u) is either $u^{-\delta}+u^{-\gamma ...
Kaushik Bal, Prashanta Garain
doaj  

Non-existence of solutions for a Timoshenko equations with weak dissipation [PDF]

open access: yesMathematica Moravica, 2018
In this paper, we consider the following Timoshenko equation utt + ( 2u ( M ((( ( u (( 2( ( u + ut = (u( q-1 u associated with initial and Dirichlet boundary conditions. We prove the non-existence of solutions with positive and negative initial energy.
Pişkin Erhan, Yüksekkaya Hazal
doaj  

A Note on the Domain of Attraction for the Stationary Solution to a Singularly Perturbed Parabolic Equation

open access: yesМоделирование и анализ информационных систем, 2017
We consider  a boundary-value problem  for a singularly  perturbed parabolic  equation with an initial function  independent of a perturbation parameter in the case where a degenerate stationary equation  has smooth possibly intersecting roots.
Mikhail A. Terentyev
doaj   +1 more source

Imperfect Synthetic Controls

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT The synthetic control method assumes the existence of a perfect synthetic control, which cannot exist if the outcomes are functions of transitory shocks with nonzero asymptotic variance and may not exist even in expectation for the treated unit. This paper first shows the benefits of estimating synthetic controls for all units.
David Powell
wiley   +1 more source

Linking Basis of Leader–Member Exchange Differentiation to Diversity Climate and Idea Generation

open access: yesJournal of Organizational Behavior, EarlyView.
ABSTRACT Diversity climate has been recognized as a key factor in preventing negative and fostering positive diversity effects. Despite this, the literature provides limited theory for leaders and organizations on how to create positive diversity climates—and even fewer empirical tests.
David J. G. Dwertmann, Haeseen Park
wiley   +1 more source

A Framework for Subgroup Dynamics Through the System Dynamics Lens: An Integrative Review of the Attribute and the Network Views

open access: yesJournal of Organizational Behavior, EarlyView.
ABSTRACT Subgroups are dynamic entities evolving constantly in response to changing contexts and time. Although scholars from both the attribute and the network views have acknowledged that subgroups are inherently complex and fluid, research in these traditions has remained bifurcated, with limited efforts to integrate the two perspectives to more ...
Jinhee Moon   +3 more
wiley   +1 more source

Update on Medical Treatments for Essential Tremor: An International Parkinson and Movement Disorder Society Evidence‐Based Medicine Review

open access: yesMovement Disorders, EarlyView.
Abstract Background The first International Parkinson and Movement Disorder Society Evidence‐Based Medicine (MDS‐EBM) review for essential tremor (ET) was published in 2019; since then, the modified Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology was adopted by MDS, and new evidence exists.
Deepa Dash   +12 more
wiley   +1 more source

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