Results 101 to 110 of about 57,690 (307)

Some remarks on biharmonic elliptic problems with positive, increasing and convex nonlinearities

open access: yesElectronic Journal of Differential Equations, 2005
We study the existence of positive solutions for a fourth order semilinear elliptic equation under Navier boundary conditions with positive, increasing and convex source term. Both bounded and unbounded solutions are considered. When compared with second
Filippo Gazzola, Elvise Berchio
doaj  

Integral boundary value problems for second-order causal differential equations

open access: yesBoundary Value Problems
This paper is concerned with second-order causal differential equations with Riemann–Stieltjes integral boundary conditions. To obtain sufficient conditions for the existence of extremal solutions for such problems, a novel comparison principle is first ...
Wenli Wang, Junyan Bao
doaj   +1 more source

Carath\'eodory extremal functions on the symmetrized bidisc

open access: yes, 2018
We show how realization theory can be used to find the solutions of the Carath\'eodory extremal problem on the symmetrized bidisc \[ G \stackrel{\rm{def}}{=} \{(z+w,zw):|z|
Agler, Jim   +2 more
core   +1 more source

Use of Symptomatic Drug Treatment for Fatigue in Multiple Sclerosis and Patterns of Work Loss

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To describe the use of central stimulants and amantadine for fatigue in MS and evaluate a potential association with reduced work loss in people with MS. Methods We conducted a nationwide, matched, register‐based cohort study in Sweden (2006 to 2023) using national registers with prospective data collection.
Simon Englund   +3 more
wiley   +1 more source

Solution of Deformed Einstein Equations and Quantum Black Holes

open access: yesAdvances in High Energy Physics, 2016
Recently, one- and two-parameter deformed Einstein equations have been studied for extremal quantum black holes which have been proposed to obey deformed statistics by Strominger.
Emre Dil, Erdinç Kolay
doaj   +1 more source

Daratumumab Treatment for Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP): A Case Report

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an immune‐mediated neuropathy featuring progressive weakness, sensory deficits, and areflexia. While corticosteroids, intravenous immunoglobulin, and plasmapheresis are effective first‐line immunotherapies, a subset of patients remains treatment‐refractory.
Xueyu Zhang   +8 more
wiley   +1 more source

Black p-branes in heterotic string theory

open access: yesJournal of High Energy Physics
Heterotic string theory has nonsupersymmetric branes whose existence is suggested by the cobordism conjecture. We numerically construct static, spherically symmetric, and asymptotically flat black brane solutions in ten-dimensional heterotic superstring ...
Masaki Fukuda   +3 more
doaj   +1 more source

Gravitational magnetic monopoles and Majumdar-Papapetrou stars

open access: yes, 2006
A large amount of work has been dedicated to studying general relativity coupled to non-Abelian Yang-Mills type theories. It has been shown that the magnetic monopole, a solution of the Yang-Mills-Higgs equations can be coupled to gravitation.
José P. S. Lemos   +6 more
core   +1 more source

ALS With and Without Upper Motor Neuron Signs: A Comparative Study Supporting the Gold Coast Criteria

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The Gold Coast criteria permit diagnosis of amyotrophic lateral sclerosis (ALS) even without upper motor neuron (UMN) signs. However, whether ALS patients with UMN signs (ALSwUMN) and those without (ALSwoUMN) share similar characteristics and prognoses remains unclear.
Hee‐Jae Jung   +7 more
wiley   +1 more source

Periodic boundary value problem for second order integro-ordinary differential equations with general kernel and Carathéodory nonlinearities

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
We study the existence of solutions for the periodic boundary value problem for some second order integro-differential equations with a general kernel. Also we develop the monotone method to approximate the extremal solutions of the problem.
Juan J. Nieto
doaj   +1 more source

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