Results 1 to 10 of about 5,786 (253)

Modelización global del proceso de colada continua

open access: yesRevista de Metalurgia, 2005
En el proceso de colada continua contribuyen complicados fenómenos físicos con un marcado efecto en la calidad final del producto y en la productividad del proceso.
J. Barco   +3 more
doaj   +3 more sources

GLOBAL CONTINUA OF POSITIVE SOLUTIONS FOR SOME BOUNDARY VALUE PROBLEMS

open access: yesDemonstratio Mathematica, 2002
The existence of an unbounded continuous branch of positive solutions, emanating from \(0\), is proved to Dirichlet problems for second-order linear as well as nonlinear differential equations in Banach spaces. Three theorems on global continua of positive solutions are given on the basis of the techniques developed by M. A. Krasnoselskii.
Nguyen Bich Huy, Tran Dinh Thanh
exaly   +3 more sources

Infinitely many global continua bifurcating from a single solution of an elliptic problem with concave–convex nonlinearity

open access: yesJournal of Mathematical Analysis and Applications, 2016
We study the bifurcation of solutions of semilinear elliptic boundary value problems of the form \begin{align*} \begin{aligned} -Δu &= f_λ(|x|,u,|\nabla u|) &&\text{in }Ω, u &= 0 &&\text{on }\partialΩ, \end{aligned} \end{align*} on an annulus $Ω\subset\mathbb{R}^N$, with a concave-convex nonlinearity, a special case being the ...
Thomas Bartsch, Rainer Mandel
exaly   +3 more sources

Global Continua of Positive Solutions for Equations with Nondifferentiable Operators

open access: yesJournal of Mathematical Analysis and Applications, 1999
Existence of global continua of solutions to nonlinear fixed point equations \(x= f(\lambda, x)\), where \(f:[0,+\infty)\times K\to K\) is a completely continuous operator in the cone \(K\), in the sense that the unbounded continuum \(S\) is such that \(S\cap\partial G\neq\emptyset\) for every bounded open set \(G\) containing the origin is studied ...
exaly   +3 more sources

Global continua of periodic solutions to some difference-differential equations of neutral type

open access: yesTohoku Mathematical Journal, 1993
The author shows some theorems which are used to study the existence of periodic solutions of neutral equations. Among other things, he presents extensions to neutral equations of the following results: a) local Hopf bifurcation theorem of Krasnosel'skij type [\textit{M. A.
exaly   +4 more sources

Bifurcation from zero or infinity in nonlinearizable Sturm–Liouville problems with indefinite weight

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper, we consider bifurcation from zero or infinity of nontrivial solutions of the nonlinear Sturm–Liouville problem with indefinite weight. This problem is mainly important because of it is related with a selection-migration model in genetic ...
Ziyatkhan Aliyev, Leyla Nasirova
doaj   +1 more source

Geospatial mapping of surgical systems for earthquake emergency planning in Guerrero, Mexico: an ecological studyResearch in context

open access: yesThe Lancet Regional Health. Americas, 2023
Summary: Background: Accessibility to surgical services can impact earthquake preparedness and response. We aimed to estimate the population with timely access to surgical care in Guerrero, a Mexican state with high tectonic activity, and identify ...
Letícia Nunes Campos   +8 more
doaj   +1 more source

The Importance of Measuring Mental Wellbeing in the Context of Psychological Distress: Using a Theoretical Framework to Test the Dual-Continua Model of Mental Health

open access: yesBehavioral Sciences, 2023
The dual-continua model of mental health suggests that psychological distress and mental wellbeing operate on two distinct yet related continua, both uniquely contributing to overall mental health.
Jackson Mason Stephens   +4 more
doaj   +1 more source

Artificial intelligence as a support for non-pharmacological interventions against COVID-19

open access: yesRevista Peruana de Medicina Experimental y Salud Pública, 2020
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Iván E. Mujica Rodríguez   +2 more
doaj   +1 more source

EXPERIENCIA DE ACOMPAÑAMIENTO Y ORIENTACIÓN EN EL PROCESO DE APRENDIZAJE EN EL AULA: CURSO DE SIMULACIÓN

open access: yesÉtic@net, 2022
Este artículo incluye resultados de la experiencia del proceso de orientación y acompañamiento en el desarrollo de aprendizaje y generación de nuevo conocimiento sobre simulación continua, a estudiantes del curso de Simulación, semestre I-2019, del ...
María Victoria Silva Domínguez
doaj   +1 more source

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