Results 91 to 100 of about 147,119 (311)

Medição de tensões residuais com indentador instrumentado e interferômetro radial [PDF]

, 2012
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaEste trabalho envolve o aprimoramento e a avaliação de alguns aspectos de uma técnica de medição de tensões residuais ...
Reis, Frederico Aires Rodrigues da Costa
core  

Point rupture solutions of a singular elliptic equation

Electronic Journal of Differential Equations, 2013
We consider the elliptic equation $$ Delta u=f(u) $$ in a region $Omegasubsetmathbb{R}^2$, where f is a positive continuous function satisfying $$ lim_{uo 0^{+}}f(u) =infty. $$ Motivated by the thin film equations, a solution $u$ is said to be a
Huiqiang Jiang, Attou Miloua
doaj  

Baseline Regional Cholinergic Denervation Predicts Cognitive Trajectories in Moderate Parkinson Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive decline is a disabling and variable feature of Parkinson disease (PD). While cholinergic system degeneration is linked to cognitive impairments in PD, most prior research reported cross‐sectional associations. We aimed to fill this gap by investigating whether baseline regional cerebral vesicular acetylcholine transporter ...
Taylor Brown, Giulia Carli, Prabesh Kanel, Stiven Roytman, Jaimie Barr, Nicolaas I. Bohnen, Roger L. Albin   +6 more
wiley   +1 more source

Semilinear elliptic boundary-value problems on bounded multiconnected domains

Electronic Journal of Differential Equations, 2005
A semilinear elliptic boundary-value problem on bounded multiconnected domains is studied. The authors prove that under suitable conditions, the problem may have no solutions in certain cases and many have one or two nonnegative solutions in some other ...
Wenjie Gao, Junyu Wang, Zhongxin Zhang
doaj  

The Existence and Uniqueness of Radial Solutions for Biharmonic Elliptic Equations in an Annulus

Axioms
This paper concerns with the existence of radial solutions of the biharmonic elliptic equation ▵2u=f(|x|,u,|∇u|,▵u) in an annular domain Ω={x∈RN ...
Yongxiang Li, Yanyan Wang
doaj   +1 more source

Paramagnetic Rim Lesions Are Associated With Trans‐Synaptic Degeneration of the Visual Pathway in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Retrograde trans‐synaptic degeneration (rTSD) from posterior visual pathway lesions in multiple sclerosis (MS) is characterized by hemi‐macular ganglion cell‐inner plexiform layer (GCIPL) thinning and contralateral visual field loss.
Abdul Jaber Tayem, Angel Liu, Sargis Manukyan, Mustafa Subhi, Elaina Luskin, Bryan Quah, Sreekanth Madhusoodhanan Nair, Arzu C. Has Silemek, Gabriela Zabala, Yujie Cui, Laura Locke, Paula Barreras, Marwa Kaisey, Vinicius Calsavara, Daniel S. Reich, Nancy L. Sicotte, Pascal Sati, Omar Al‐Louzi   +17 more
wiley   +1 more source

A control volume scheme using compact integrated radial basis function stencils for solving the Richards equation [PDF]

, 2020
A new control volume approach is developed based on compact integrated radial basis function (CIRBF) stencils for solution of the highly nonlinear Richards equation describing transient water flow in variably saturated soils.
Duc Ngo-Cong, van Genuchten, Martinus Th, Nam Mai-Duy, van Genuchten, Martinus Th [UNESP], Mai-Duy, Nam, Antille, Diogenes L., Ngo-Cong, Duc, van Genuchten, Martinus Th.   +7 more
core   +1 more source

Existence of two infinite families of solutions to a singular superlinear equation on exterior domains

Electronic Journal of Qualitative Theory of Differential Equations
We are concerned with the radial solutions of the Dirichlet problem $-\Delta u=K(|x|)f(u)$ on the exterior of the ball of radius $R>0$ centered at the origin in $\mathbb{R}^N \text{ with } N\geq 3$ where $f$ is superlinear at $\infty$ and has a ...
Narayan Aryal, Joseph Iaia
doaj   +1 more source

Approximate solution for the Lane-Emden equation of the second kind in a spherical annulus

Journal of King Saud University: Engineering Sciences, 2019
In this paper, we derive accurate approximate solution of Lane-Emden equation of the second kind in a spherical annulus geometry. The approximate solution is obtained by analytic arguments, and perturbation methods in terms of small and large radial ...
Moustafa Aly Soliman
doaj   +1 more source

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling, Mark D. Parker, Sven Kerst, Richard A. Pasternack, Jacob Tondreau, Marjolein Breur, Gemma M. van Rooijen‐van Leeuwen, Davide Tonduti, Ettore Salsano, Alejandra Darling, Joanna A. E. van Wijk, Susanna Törnroth‐Horsefield, Marianna Bugiani, Petra J. W. Pouwels, Quinten Waisfisz, Marjo S. van der Knaap, Rogier Min   +16 more
wiley   +1 more source