Results 61 to 70 of about 4,097,489 (343)

Quantum Arnol'd Diffusion in a Simple Nonlinear System

, 2002
We study the fingerprint of the Arnol'd diffusion in a quantum system of two coupled nonlinear oscillators with a two-frequency external force. In the classical description, this peculiar diffusion is due to the onset of a weak chaos in a narrow ...
A. I. Malyshev, A.A. Chernikov, B.V. Chirikov, B.V. Chirikov, B.V. Chirikov, B.V. Chirikov, B.V. Chirikov, D.M. Leitner, D.S. Perry, E.V. Shuryak, F. M. Izrailev, G. Casati, G.P. Berman, J. von Milczewski, M. Toda, T.M. Fromhold, V. Ya. Demikhovskii, V.I. Arnol’d, V.V. Vecheslavov, V.Ya. Demikhovskii, V.Ya. Demikhovskii, V.Ya. Demikhovskii   +21 more
core   +1 more source

Diffusion on diffusing particles

Diffusion Fundamentals, 2007
We investigate random walk of a particle constrained on cells, where cells behave as a lattice gas on a two dimensional square lattice. By Monte Carlo simulation, we obtain the mean first passage time of the particle as a function of the density and temperature of the lattice gas. We find that the transportation of the particle becomes anomalously slow
Imoto, Yu, Odagaki, Takashi
openaire   +2 more sources

Structural biology of ferritin nanocages

FEBS 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

A new experimental result indicating 3 separate phase fields of ε, ε1, ε2 and the estimation of diffusion coefficients in the Mn–Zn system

Journal of Alloys and Metallurgical Systems
The Mn–Zn system, technologically crucial for galvanized Mn–containing steels and potential ZnMn–based biomaterials, has been studied using the conventional diffusion couple technique.
Shubhangini Yadav, Varun A. Baheti
doaj   +1 more source

Minería y vulnerabilidad de los territorios rurales en los Andes ecuatorianos: evidencias desde la provincia del Azuay

Cuadernos de Geografía: Revista Colombiana de Geografía, 2018
En los Andes ecuatorianos, la agricultura familiar se encuentra desde hace varias décadas en una situación de gran vulnerabilidad. A pesar de la reciente renovación del discurso político en Ecuador y del advenimiento de la era del “Buen Vivir”, el auge ...
Julio A. Alvarado Vélez, Nasser Rebaï
doaj   +1 more source

Dispersive Transport Described by the Generalized Fick Law with Different Fractional Operators

Fractal and Fractional, 2020
The approach based on fractional advection–diffusion equations provides an effective and meaningful tool to describe the dispersive transport of charge carriers in disordered semiconductors.
Renat T. Sibatov, HongGuang Sun
doaj   +1 more source

Diffusion in neutral and ionized gases with extreme pressure gradients [PDF]

, 1959
Diffusion in vortex flows is considered as a simple case of the more general problem of diffusion in flows with large pressure gradients normal to the principal flow direction. Two examples are considered.
Kerrebrock, Jack L.
core  

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Explaining the Diffusion of Project ECHO

Implementation Science Communications
Project Extension for Community Healthcare Outcomes (Project ECHO), a telementoring intervention in which medical specialists share knowledge with medical generalists, has spread to many sites during its 22 years, reaching providers in nearly 200 ...
James W. Dearing, R. Sam Larson
doaj   +1 more source

The application of frequency-domain photoacoustics to temperature-dependent measurements of the Grüneisen parameter in lipids

Photoacoustics, 2018
The Grüneisen parameter is an essential factor in biomedical photoacoustic (PA) diagnostics. In most PA imaging applications, the variation of the Grüneisen parameter with tissue type is insignificant.
Simon Liang, Bahman Lashkari, Sung Soo Sean Choi, Vasilis Ntziachristos, Andreas Mandelis   +4 more
doaj   +1 more source