Results 11 to 20 of about 5,786 (253)

Bifurcation in nonlinearizable eigenvalue problems for ordinary differential equations of fourth order with indefinite weight

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
We consider a nonlinearizable eigenvalue problem for the beam equation with an indefinite weight function. We investigate the structure of bifurcation set and study the behavior of connected components of the solution set bifurcating from the line of ...
Ziyatkhan Aliyev, Rada Huseynova
doaj   +1 more source

Global continua of solutions to the Lugiato–Lefever model for frequency combs obtained by two-mode pumping

open access: yesZeitschrift für angewandte Mathematik und Physik, 2023
AbstractWe consider Kerr frequency combs in a dual-pumped microresonator as time-periodic and spatially $$2\pi $$ 2 π -periodic traveling wave solutions of a variant of the Lugiato–Lefever equation, which is a damped, detuned and driven nonlinear Schrödinger ...
Gasmi, Elias   +3 more
openaire   +5 more sources

Consultorios adyacentes a farmacias privadas en México: infraestructura y características del personal médico y su remuneración

open access: yesSalud Pública de México, 2015
Objetivo. Analizar las características del personal médico y su remuneración, así como la infraestructura, apego a la regulación y servicios ofrecidos en consultorios adyacentes a farmacias (CAF), y compararlos con consultorios médicos independientes ...
Veronika J Wirtz   +5 more
doaj   +1 more source

Topology Optimization for Continua Considering Global Displacement Constraint

open access: yesStrojniški vestnik – Journal of Mechanical Engineering, 2014
Finding the best distribution of available material in the predetermined design domain satisfying various conditions is the target of topology optimization for continuum structures. In most topology optimization methods, the optimized goal is to find the structures with maximum stiffness.
Rong, Jianhua, Yi, Jijun, Zeng, Tao
openaire   +2 more sources

Princípios avaliativos para biblioteca universitária

open access: yesRDBCI: Revista Digital de Biblioteconomia e Ciência da Informação, 2020
Este artigo trata da avaliação da biblioteca universitária no contexto do Sistema Nacional de Avaliação da Educação Superior (SINAES). Objetiva propor um modelo de princípios avaliativos para a biblioteca universitária que ultrapasse a simples ...
Marcos Felipe Gonçalves Maia   +1 more
doaj   +1 more source

Barreras de entrada en la cadena global de valor de agrobiotecnología en semillas: caso Argentina

open access: yesDesafíos, 2021
Las relaciones económicas internacionales asistieron a un complejo proceso de producción de bienes y servicios geográficamente fragmentados y articulados entre sí. Frente a ello, la perspectiva de cadena global de valor destaca el rol predominante de las
Santiago Andrés Calvo
doaj   +1 more source

Global continua of periodic solutions of singular first-order Hamiltonian systems of N-vortex type [PDF]

open access: yesMathematische Annalen, 2016
The paper deals with singular first order Hamiltonian systems of the form \[ Γ_k\dot{z}_k(t)=J\nabla_{z_k} H\big(z(t)\big),\quad z_k(t) \in Ω\subset \mathbb{R}^2,\ k=1,\dots,N, \] where $J\in\mathbb{R}^{2\times2}$ defines the standard symplectic structure in $\mathbb{R}^2$, and the Hamiltonian $H$ is of $N$-vortex type: \[ H(z_1,\dots,z_N) = -\frac1{2π}
Thomas Bartsch, Björn Gebhard
openaire   +3 more sources

Status and methodology of publicly available national HIV care continua and 90-90-90 targets: A systematic review.

open access: yesPLoS Medicine, 2017
BackgroundIn 2014, the Joint United Nations Program on HIV/AIDS (UNAIDS) issued treatment goals for human immunodeficiency virus (HIV). The 90-90-90 target specifies that by 2020, 90% of individuals living with HIV will know their HIV status, 90% of ...
Reuben Granich   +5 more
doaj   +1 more source

Oscillating global continua of positive solutions of semilinear elliptic problems [PDF]

open access: yesProceedings of the American Mathematical Society, 1999
Let Ω \Omega be a bounded domain in
openaire   +2 more sources

Rabinowitz Alternative for Non-cooperative Elliptic Systems on Geodesic Balls

open access: yesAdvanced Nonlinear Studies, 2018
The purpose of this paper is to study properties of continua (closed connected sets) of nontrivial solutions of non-cooperative elliptic systems considered on geodesic balls in Sn{S^{n}}.
Rybicki Sławomir   +2 more
doaj   +1 more source

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