Results 41 to 50 of about 284 (136)

Existence results for boundary value problems associated with singular strongly nonlinear equations [PDF]

open access: yes, 2020
We consider a strongly nonlinear differential equation of the following general type: (Φ(a(t,x(t))x′(t)))′=f(t,x(t),x′(t)),a.e. on[0,T],where f is a Carathédory function, Φ is a strictly increasing homeomorphism (the Φ -Laplacian operator), and the ...
Biagi S., Calamai A., Papalini F.
core   +1 more source

Phospholipase D2 downregulates interleukin‐1β secretion from tumor‐associated macrophages to suppress bladder cancer progression

open access: yesCancer Science, Volume 116, Issue 2, Page 381-392, February 2025.
We reveal that phospholipase D2 (PLD2) knockout promotes bladder cancer progression through immunosuppressive modulation involving tumor‐associated macrophages (TAMs) in the tumor microenvironment. Notably, knockout of Pld2 increased TAMs and interleukin‐1β (IL‐1β) production, suggesting that PLD2 suppresses bladder cancer progression by regulating IL ...
Kazuki Hamada   +13 more
wiley   +1 more source

On the existence of periodic solutions for nonconvex differential inclusions [PDF]

open access: yes, 1996
summary:Using a Nagumo type tangential condition and a recent theorem on the existence of directionally continuous selector for a lower semicontinuous multifunctions, we establish the existence of periodic trajectories for nonconvex differential ...
Papageorgiou, Nikolaos S.   +3 more
core  

Existence results for ϕ-Laplacian Dirichlet BVP of differential inclusions with application to control theory

open access: yes, 2010
In this paper, we study ϕ-Laplacian problems for differential inclusions with Dirichlet boundary conditions. We prove the existence of solutions under both convexity and nonconvexity conditions on the multi-valued right-hand side.
Djebali, Smaïl, Ouahab, Abdelghani
core   +1 more source

Nonlinear boundary value problems in Hilbert Spaces

open access: yes, 1989
In this paper we examine nonlinear two point boundary value problems, with Sturm-Liouville type boundary conditions, in a Hilbert Space. Our technique involves using the Topological Transversality Theorem of A.
O'Regan, D., Lee, J.W.
core   +1 more source

Iconicity Emerges From Language Experience: Evidence From Japanese Ideophones and Their English Equivalents

open access: yesCognitive Science, Volume 48, Issue 12, December 2024.
Abstract Iconicity is a relationship of resemblance between the form and meaning of a sign. Compelling evidence from diverse areas of the cognitive sciences suggests that iconicity plays a pivotal role in the processing, memory, learning, and evolution of both spoken and signed language, indicating that iconicity is a general property of language ...
Hinano Iida, Kimi Akita
wiley   +1 more source

Solvability of an elastic beam equation in presence on a sign-type Nagumo control

open access: yes, 2011
The aim of this work is to establish an existence and localization result for the fourth order two-point boundary value problem u^(iv) = f (x;u;u';u'';u''') ; 0 < x < 1; u(0) = u'(1) = u''(0) = u'''(1) = 0; related to elastic beam models.
Grossinho, Maria do Rosário   +1 more
core  

Solvability of second order coupled systems on the half-line

open access: yes, 2019
In this work, we consider a second-order coupled system of differential equations in semiinfinite intervals. The arguments apply the fixed point theory, Green’s functions technique, L1-Carathéodory functions theory, a truncation technique, and Schauder’s
Minhós, Feliz, de Sousa, Robert
core   +1 more source

Semilinear problems with nonlinearities depending only on derivatives [PDF]

open access: yes, 1995
summary:A periodic boundary value problem for nonlinear differential equation of the second order is studied. Nagumo condition is not assumed on a part of nonlinearity.
Fečkan, Michal, Rudolf, Boris
core   +1 more source

Stability of fronts in the diffusive Rosenzweig–MacArthur model

open access: yesStudies in Applied Mathematics, Volume 153, Issue 4, November 2024.
Abstract We consider a diffusive Rosenzweig–MacArthur predator–prey model in the situation when the prey diffuses at a rate much smaller than that of the predator. In a certain parameter regime, the existence of fronts in the system is known: the underlying dynamical system in a singular limit is reduced to a scalar Fisher–KPP (Kolmogorov–Petrovski ...
Anna Ghazaryan   +3 more
wiley   +1 more source

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