Results 81 to 90 of about 780,879 (337)

On some higher order boundary value problems at resonance with integral boundary conditions

open access: yesArab Journal of Mathematical Sciences, 2018
This paper investigates the existence of solutions for higher-order multipoint boundary value problems at resonance. We obtain existence results by using coincidence degree arguments.
Samuel Azubuike Iyase   +1 more
doaj   +1 more source

Boundary value problems for n-th order differential inclusions with four-point integral boundary conditions [PDF]

open access: yesOpuscula Mathematica, 2012
In this paper, we discuss the existence of solutions for a four-point integral boundary value problem of \(n\)-th order differential inclusions involving convex and non-convex multivalued maps. The existence results are obtained by applying the nonlinear
Bashir Ahmad, Sotiris K. Ntouyas
doaj   +1 more source

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

open access: yesFEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson   +7 more
wiley   +1 more source

On a fractional q-differential inclusion on a time scale via endpoints and numerical calculations

open access: yesAdvances in Difference Equations, 2020
By using an endpoint result for set-valued maps, we study the existence of solutions for a fractional q-differential inclusion with sum and integral boundary value conditions on the time scale T t 0 = { t 0 q , t 0 q 2 , … } ∪ { 0 } $\mathbb{T}_{t_{0}}= \
Mohammad Esmael Samei, Shahram Rezapour
doaj   +1 more source

Discrete-Time Path Distributions on Hilbert Space [PDF]

open access: yes, 2012
We construct a path distribution representing the kinetic part of the Feynman path integral at discrete times similar to that defined by Thomas [1], but on a Hilbert space of paths rather than a nuclear sequence space. We also consider different boundary
Beau, Mathieu, Dorlas, T. C.
core   +4 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Boundary value problems for fractional differential inclusions with four-point integral boundary conditions [PDF]

open access: yesSurveys in Mathematics and its Applications, 2011
In this paper, we discuss the existence of solutions for a boundary value problem of second order fractional differential inclusions with four-point integral boundary conditions involving convex and non-convex multivalued maps.
Bashir Ahmad , Sotiris K. Ntouyas
doaj  

Existence and uniqueness of solutions for the system of integro-differential equations with three-point and nonlinear integral boundary conditions

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
The paper examines a system of nonlinear integro-differential equations with three-point and nonlinear integral boundary conditions. The original problem demonstrated to be equivalent to integral equations by using Green function.
M.J. Mardanov   +2 more
doaj   +1 more source

A computational method for the Helmholtz equation in unbounded domains based on the minimization of an integral functional

open access: yes, 2012
We study a new approach to the problem of transparent boundary conditions for the Helmholtz equation in unbounded domains. Our approach is based on the minimization of an integral functional arising from a volume integral formulation of the radiation ...
Ciraolo, Giulio   +2 more
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

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