Results 151 to 160 of about 7,656 (241)
Fractional Brownian motion via fractional Laplacian
A new and short proof of existence of the fractional Brownian field with exponent [alpha]/2,[alpha][set membership, variant](0,2], is given in terms of the fractional power of the Laplacian.Fractional Brownian motion Fractional ...
Bojdecki, Tomasz, Gorostiza, Luis G.
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Fourier Mass Lower Bounds for Batchelor‐Regime Passive Scalars
Communications on Pure and Applied Mathematics, Volume 79, Issue 6, Page 1449-1466, June 2026.ABSTRACT Batchelor predicted that a passive scalar ψν$\psi ^\nu$ with diffusivity ν$\nu$, advected by a smooth fluid velocity, should typically have Fourier mass distributed as |ψ̂ν|2(k)≈|k|−d$|\widehat{\psi }^\nu |^2(k) \approx |k|^{-d}$ for |k|≪ν−1/2$|k| \ll \nu ^{-1/2}$.
William Cooperman, Keefer Rowan
wiley +1 more source
Engineering Reports, Volume 8, Issue 6, June 2026.A one‐dimensional multiphysics engineering model is developed to elucidate the coupled transport and reaction phenomena governing textile‐based wearable lactate biosensors operating in sweat. The model integrates diffusion of lactate, oxygen, hydrogen peroxide, and protons with dual‐substrate enzymatic kinetics, acid–base equilibria, and mediator‐based
Kamel A. Saleh +8 more
wiley +1 more source
Energy Science &Engineering, Volume 14, Issue 6, Page 3056-3072, June 2026.This review presents a comparative analysis of experimental studies aimed at improving the thermal efficiency of solar water heating (SWH) systems. Various enhancement techniques, including nanofluids, phase change materials, optimized collector designs, and hybrid photovoltaic–thermal systems, are evaluated based on their impact on system performance ...
Oluwaseyi O. Alabi +2 more
wiley +1 more source
Fractional Brownian motion and multivariate-t models for longitudinal biomedical data, with application to CD4 counts in HIV-positive patients. [PDF]
Stat Med, 2016 Stirrup OT +3 more
europepmc +1 more source
Human Brain Mapping, Volume 47, Issue 8, June 1, 2026.Ultra‐high‐gradient diffusion MRI (500 mT/m) enables more accurate in vivo axon diameter mapping, detecting smaller fibers with reduced bias and improved repeatability compared to 300 mT/m and showing promise as a microstructural imaging biomarker for development, aging, and disease. ABSTRACT Pushing the resolution limit of axon diameter mapping in the
Yixin Ma +10 more
wiley +1 more source
Metabolic Reprogramming and Exosome Remodeling in an Ndufs4‐Deficient Model of Leigh Syndrome
iNew Medicine, Volume 2, Issue 2, June 2026.Ndufs4 knockout drives exosomal remodeling, reprograms cellular metabolism, impairs neural stem cell self‐renewal and differentiation, and suppresses mTOR signaling, providing a conceptual framework for understanding Leigh syndrome pathogenesis and informing therapeutic development.
Yakun Liu +13 more
wiley +1 more source
Lookback Option Pricing with Fixed Proportional Transaction Costs under Fractional Brownian Motion. [PDF]
Int Sch Res Notices, 2014 Sun JJ, Zhou S, Zhang Y, Han M, Wang F.
europepmc +1 more source
Intranasal Delivery of Bacterial Extracellular Vesicles Enables RNA Cargo Entry Into the Brain
Journal of Extracellular Vesicles, Volume 15, Issue 6, June 2026.ABSTRACT Extracellular vesicles (EVs) released by bacteria are potent mediators of host–microbe interactions. They modulate immune responses, deliver functional molecules and influence disease progression. However, whether bacterial EVs can access the brain and functionally affect host cells remains unclear.
Jae Yeong Ha +8 more
wiley +1 more source
Calibration of the subdiffusive arithmetic Brownian motion with tempered stable waiting-times
In the classical analysis many models used to real data description are based on the standard Brownian diffusion-type processes. However, some real data exhibit characteristic periods of constant values.
Agnieszka, Wyłomańska +1 more
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