Results 51 to 60 of about 44,097 (315)

A Wavelet Collocation Method for some Fractional Models

open access: yesRatio Mathematica, 2022
This article presents an effective numerical approach based on the operational matrix of fractional order integration of Haar wavelets for dealing with the fractional models of the mixing and the Newton law of cooling problems.
R Aruldoss, G. Jasmine
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Fractional integration operator of variable order in the holder spaces Hλ(x)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
The fractional integrals Ia+α(x)φ of variable order α(x) are considered. A theorem on mapping properties of Ia+α(x)φ in Holder-type spaces Hλ(x) is proved, this being a generalization of the well known Hardy-Littlewood theorem.
Bertram Ross, Stefan Samko
doaj   +1 more source

Calculus of variations with fractional derivatives and fractional integrals

open access: yesApplied Mathematics Letters, 2009
We prove Euler-Lagrange fractional equations and sufficient optimality conditions for problems of the calculus of variations with functionals containing both fractional derivatives and fractional integrals in the sense of Riemann-Liouville.
Ricardo Almeida 0001   +1 more
openaire   +4 more sources

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Infant mortality rates: Time trends and fractional integration [PDF]

open access: yes, 2011
This paper examines the time trends in infant mortality rates in a number of countries in the 20th century. Rather than imposing that the error term is a stationary I(0) process, we allow for the possibility of fractional integration and hence for a much
Caporale, GM, Gil-Alana, LA
core  

Long memory and fractional integration in high frequency financial time series [PDF]

open access: yes, 2010
This paper analyses the long-memory properties of high frequency financial time series. It focuses on temporal aggregation and the influence that this might have on the degree of dependence of the series.
Gil-Alana, Luis A.   +3 more
core   +1 more source

US Disposable Personal Income and Housing Price Index: A Fractional Integration Analysis [PDF]

open access: yes
This paper examines the relationship between US disposable personal income (DPI) and house price index (HPI) during the last twenty years applying fractional integration and long-range dependence techniques to monthly data from January 1991 to July 2010.
Luis A. Gil-Alana   +1 more
core   +3 more sources

Long Memory Characteristics of Global Temperature Anomalies (1850–2025)

open access: yesAtmosphere
The oceans have absorbed most of the excess heat generated by anthropogenic climate change, yet the temporal structure of this warming remains insufficiently understood.
Luis Alberiko Gil-Alana   +2 more
doaj   +1 more source

TÜRKİYE’DE SATIN ALMA GÜCÜ PARİTESİ HİPOTEZİNİN GEÇERLİLİĞİ: UZUN HAFIZA TESTLERİNDEN KANITLAR

open access: yesMehmet Akif Ersoy Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi, 2018
Esnekkur rejiminin küresel anlamda yaygınlaşmasıyla birlikte döviz kuru öngörüsü deönem kazanmaya başlamıştır. Döviz kurları, başta dış ticaret dengesi olmaküzere, yatırım kararlarının alınmasında ve küresel gelirden daha fazla payalabilmek için merkez ...
İsmail Çelik, Harun Kaya
doaj   +1 more source

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