Results 41 to 50 of about 8,551 (258)

A distinct numerical approach for the solution of some kind of initial value problem involving nonlinear q-fractional differential equations

open access: yesپژوهش‌های ریاضی, 2022
The fractional calculus deals with the generalization of integration and differentiation of integer order to those ones of any order. The q-fractional differential equation usually describe the physical process imposed on the time scale set Tq.
اعظم فتحی پور, azam fathipour
doaj  

Integration and Disintegration of EMU Government Bond Markets

open access: yesEconometrics, 2021
It is commonly found that the markets for long-term government bonds of Economic and Monetary Union (EMU) countries were integrated prior to the EMU debt crisis.
Christian Leschinski   +2 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

FRACTIONAL ORDER SYSTEM IDENTIFICATION BASED ON GENETIC ALGORITHMS [PDF]

open access: yesJournal of Engineering Science and Technology, 2013
System identification deals with estimating the plant parameters under control using input-output measuring data. Most of practical plants have fractional order dynamic properties which are based on integration and differentiation of noninteger order. In
MAZIN Z. OTHMAN, EMAD A. AL-SABAWI
doaj  

Fractional Integration and Its Influence on Unit Root and Co- Integration Analysis

open access: yesEconomia Aplicada, 2016
This study assesses the power of traditional unit root and co-integration tests when they are applied to fractionally integrated stochastic processes in the 0 ≤ d ≤ 1 range.
Guilherme de Oliveira Lima C. Marques
doaj   +1 more source

Use of fresh water over the long run measuring persistence

open access: yesWater Policy, 2022
In this article, we carry out a study of the degree of persistence of a time series of data on freshwater use in the long term, using fractional integration or I(d) techniques. Using annual data from 1901 to 2014, we observe that the order of integration
Marta del Rio   +2 more
doaj   +1 more source

Fractional-Order Differentiators and Integrators with Reduced Circuit Complexity

open access: yes2018 IEEE International Symposium on Circuits and Systems (ISCAS), 2018
Fractional-order differentiation and integration stages are essential building blocks for performing signal processing using fractional-order calculus. One important characteristic of fractional-order differentiators/integrators is the circuit complexity of the integer-order topologies required for approximating such stages.
Panagiotis Bertsias   +4 more
openaire   +2 more sources

Efficient high order algorithms for fractional integrals and fractional differential equations [PDF]

open access: yesNumerische Mathematik, 2018
We propose an efficient algorithm for the approximation of fractional integrals by using Runge--Kutta based convolution quadrature. The algorithm is based on a novel integral representation of the convolution weights and a special quadrature for it. The resulting method is easy to implement, allows for high order, relies on rigorous error estimates and
Lehel Banjai, Maria Lopez-Fernandez
openaire   +4 more sources

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy