Results 71 to 80 of about 21,370 (279)

High Perturbations of a Fractional Kirchhoff Equation with Critical Nonlinearities

Axioms
This paper concerns a fractional Kirchhoff equation with critical nonlinearities and a negative nonlocal term. In the case of high perturbations (large values of α, i.e., the parameter of a subcritical nonlinearity), existence results are obtained by the
Shengbin Yu, Lingmei Huang, Jiangbin Chen   +2 more
doaj   +1 more source

Existence and multiplicity of solutions for Klein–Gordon–Maxwell systems with sign-changing potentials

Advances in Difference Equations, 2019
In this paper, we study the following nonlinear Klein–Gordon–Maxwell system: {−Δu+V(x)u−(2ω+ϕ)ϕu=f(x,u)+λh(x)|u|q−2u,x∈R3,Δϕ=(ω+ϕ)u2,x∈R3,(Pλ) $$ \textstyle\begin{cases} -\Delta u+ V(x)u-(2\omega +\phi )\phi u = f(x,u)+\lambda h(x) \vert u \vert ^{q-2}u,
Chongqing Wei, Anran Li
doaj   +1 more source

From Diagnosis to Disease Staging: Multisite Validation of Cerebrospinal Fluid Molecular Tests in Multiple Sclerosis

Annals of Neurology, EarlyView.
Objective The growing demand for personalized treatment in multiple sclerosis (MS) highlights the need for more precise biomarkers that can outperform magnetic resonance imaging and clinical assessment in patient stratification. Advances in multiplex proteomic technologies suggest that cerebrospinal fluid (CSF) analysis at MS onset may not only improve
Laura Ghezzi, Peter Kosa, Mark Greenwood, Enrique Alvarez, C.L. Freedman, Anne H. Cross, Francesca Pace, Mark S. Freedman, Joanna Kocot, Laura Piccio, Bibiana Bielekova   +10 more
wiley   +1 more source

Existence and multiplicity of solutions for a differential inclusion problem involving the p(x)-Laplacian

Electronic Journal of Differential Equations, 2010
In this article we consider the differential inclusion $$displaylines{ -hbox{div}(| abla u|^{p(x)-2} abla u)in partial F(x,u) quadhbox{in }Omega,cr u=0 quad hbox{on }partial Omega }$$ which involves the $p(x)$-Laplacian.
Guowei Dai
doaj  

Multiple solutions for a singular fractional Kirchhoff problem with variable exponents

AIMS Mathematics
In this work, we studied the multiplicity of solutions for a Kirchhoff problem involving the $ \kappa(\xi) $-fractional derivative and critical exponent.
Najla Alghamdi, Abdeljabbar Ghanmi
doaj   +1 more source

The summer heatwave in 2022 and its role in changing permafrost and periglacial conditions at a historic mountain pass in the Eastern Alps (Hochtor, Hohe Tauern Range, Austria). [PDF]

Permafr Periglac Process, 2023
Kellerer-Pirklbauer A, Eulenstein J.
europepmc   +1 more source

But how does it smell? An investigation of olfactory bulb size among living and fossil primates and other euarchontoglirans

The Anatomical Record, EarlyView.
Analysis of cranial endocast data of 181 extant and 41 fossil species from Euarchontoglires shows that there was a reduction in olfactory bulb size in Crown Primates, but that there were also subsequent reductions in various other primate clades (Anthropoidea, Catarrhini, Platyrrhini, crown Cercopithecoidea, Hominoidea).
Madlen Maryanna Lang, Mary Teresa Silcox, Łucja Fostowicz‐Frelik, Adam Lis, Sergi López‐Torres, Gabriela San Martin‐Flores, Ornella C. Bertrand   +6 more
wiley   +1 more source

The Existence of a Nontrivial Solution for a -Kirchhoff Type Elliptic Equation in

Abstract and Applied Analysis, 2013
Using Mountain Pass lemma, under some appropriate assumptions, we establish the existence of one nontrivial solution for a class of p-Kirchhoff-type elliptic equations in .
Zonghu Xiu
doaj   +1 more source

Existence of solutions for a class of quasilinear degenerate $p(x)$-Laplace equations

Electronic Journal of Qualitative Theory of Differential Equations, 2018
We study the existence of weak solutions for a degenerate $p(x)$-Laplace equation. The main tool used is the variational method, more precisely, the Mountain Pass Theorem.
Qing-Mei Zhou, Jian-Fang Wu
doaj   +1 more source

In‐vitro puncture experiment using alligator teeth tracks the formation of dental microwear and its association with hardness of the diet

The Anatomical Record, EarlyView.
Abstract With the development of dental microwear texture analysis (DMTA), there has been an increasing application of DMTA for dietary estimation in extant and fossil reptiles, including dinosaurs. While numerous feeding experiments exist for herbivorous mammals, knowledge remains limited for carnivorous reptiles. This study aimed to qualitatively and
K. Usami, M. O. Kubo
wiley   +1 more source