Results 1 to 10 of about 623 (90)

The ribosomal protein genes and Minute loci of Drosophila melanogaster. [PDF]

open access: yesGenome Biol, 2007
BACKGROUND: Mutations in genes encoding ribosomal proteins (RPs) have been shown to cause an array of cellular and developmental defects in a variety of organisms.
Marygold SJ   +11 more
europepmc   +5 more sources

Existence of a positive solution to a right focal boundary value problem [PDF]

open access: yes, 2010
In this paper we apply the recent extension of the Leggett-Williams Fixed Point Theorem which requires neither of the functional boundaries to be invariant to the second order right focal boundary value problem.
Anderson, Douglas   +2 more
core   +11 more sources

A numerical solution of problem for essentially loaded differential equations with an integro-multipoint condition

open access: yesOpen Mathematics, 2022
We study a linear boundary value problem for systems of essentially loaded differential equations with an integro-multipoint condition. We make use of the numerical implementation of the Dzhumabaev parametrization method to obtain the desired result ...
Kadirbayeva Zhazira M.   +1 more
doaj   +1 more source

Third-order differential equations with three-point boundary conditions

open access: yesOpen Mathematics, 2021
In this paper, a third-order ordinary differential equation coupled to three-point boundary conditions is considered. The related Green’s function changes its sign on the square of definition. Despite this, we are able to deduce the existence of positive
Cabada Alberto, Dimitrov Nikolay D.
doaj   +1 more source

Uniqueness of solutions for a ψ-Hilfer fractional integral boundary value problem with the p-Laplacian operator

open access: yesDemonstratio Mathematica, 2023
In this article, we discuss the existence of a unique solution to a ψ\psi -Hilfer fractional differential equation involving the pp-Laplacian operator subject to nonlocal ψ\psi -Riemann-Liouville fractional integral boundary conditions.
Alsaedi Ahmed   +3 more
doaj   +1 more source

Two-point nonlocal nonlinear fractional boundary value problem with Caputo derivative: Analysis and numerical solution

open access: yesNonlinear Engineering, 2022
This work presents the existential and unique results for the solution to a kind of high-order fractional nonlinear differential equations involving Caputo fractional derivative.
AhmadSoltani Leyla
doaj   +1 more source

Investigation of hybrid fractional q-integro-difference equations supplemented with nonlocal q-integral boundary conditions

open access: yesDemonstratio Mathematica, 2023
In this article, we introduce and study a new class of hybrid fractional qq-integro-difference equations involving Riemann-Liouville qq-derivatives, supplemented with nonlocal boundary conditions containing Riemann-Liouville qq-integrals of different ...
Alsaedi Ahmed   +3 more
doaj   +1 more source

Nonlinear boundary value problems for mixed-type fractional equations and Ulam-Hyers stability

open access: yesOpen Mathematics, 2020
In this article, we discuss the nonlinear boundary value problems involving both left Riemann-Liouville and right Caputo-type fractional derivatives. By using some new techniques and properties of the Mittag-Leffler functions, we introduce a formula of ...
Wang Huiwen, Li Fang
doaj   +1 more source

Improved quality of life in patients with refractory or recidivant ascites after insertion of transjugular intrahepatic portosystemic shunts [PDF]

open access: yes, 2002
Background. We have recently shown that the transjugular intrahepatic portosystemic shunt (TIPS) is more effective than paracentesis in the treatment of cirrhotic patients with severe ascites and can prolong survival in selected patients.
Bilzer, M.   +5 more
core   +1 more source

Solvability for a nonlocal dispersal model governed by time and space integrals

open access: yesOpen Mathematics, 2022
This work is to analyze a nonlocal dispersal model governed by a Volterra type integral and two space integrals. A weighted integral is included, and an existence result of solutions for this model is proved.
Yu Yang-Yang, Wang Fu-Zhang
doaj   +1 more source

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