Results 61 to 70 of about 42,207 (315)

Economic Interpretation of Fractional Derivatives [PDF]

open access: yesProgress in Fractional Differentiation and Applications, 2017
10 pages, 2 figures ...
Tarasova, Valentina V.   +1 more
openaire   +2 more sources

An efficient discrete Chebyshev polynomials strategy for tempered time fractional nonlinear Schrödinger problems

open access: yesJournal of Advanced Research
Introduction: An interesting type of fractional derivatives that has received widespread attention in recent years is the tempered fractional derivatives. These fractional derivatives are a generalization of the well-known fractional derivatives, such as
Mohammad Hossein Heydari   +1 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

MR-Metric Spaces: Theory and Applications in Fractional Calculus and Fixed-Point Theorems [PDF]

open access: yesNeutrosophic Sets and Systems
This paper investigates the interplay between MR-metric spaces and fractional calculus, estab lishing new theoretical results with applications in analysis and mathematical physics.
Abed Al-Rahman M. Malkawi   +1 more
doaj   +3 more sources

Generalized Fractional Derivative, Fractional differential ring

open access: yes, 2021
There are many possible definitions of derivatives, here we present some and present one that we have called generalized that allows us to put some of the others as a particular case of this but, what interests us is to determine that there is an infinite number of possible definitions of fractional derivatives, all are correct as differential ...
Toghani, Zeinab, Gaggero, Luis
openaire   +2 more sources

Comparative study of integer-order and fractional-order artificial neural networks: Application for mathematical function generation

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy
This paper investigates the impact of fractional derivatives on the activation functions of an artificial neural network (ANN). Based on the results and analysis, a three-layer backpropagation neural network model with fractional and integer derivatives ...
Manisha Premkumar Joshi   +2 more
doaj   +1 more source

On Riemann-Liouville and Caputo Derivatives

open access: yesDiscrete Dynamics in Nature and Society, 2011
Recently, many models are formulated in terms of fractional derivatives, such as in control processing, viscoelasticity, signal processing, and anomalous diffusion. In the present paper, we further study the important properties of the Riemann-Liouville (
Changpin Li, Deliang Qian, YangQuan Chen
doaj   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Fractional Derivative Cosmology [PDF]

open access: yesSOP Transactions on Theoretical Physics, 2014
The degree by which a function can be differentiated need not be restricted to integer values. Usually most of the field equations of physics are taken to be second order, curiosity asks what happens if this is only approximately the case and the field equations are nearly second order.
openaire   +2 more sources

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