Results 11 to 20 of about 25,724 (259)
NeuroImage, 2022 Diffusion MRI measures of the human brain provide key insight into microstructural variations across individuals and into the impact of central nervous system diseases and disorders.
Qianqian Yang +2 more
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Frontiers in Physics, 2020 In this mini-review, we addressed the transient-anomalous diffusion by MRI, starting from the assumption that transient-anomalous diffusion is ubiquitously observed in biological tissues, as demonstrated by different single-particle-tracking optical ...
Silvia Capuani +2 more
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Anomalous Diffusion in Fractal Globules [PDF]
Physical Review Letters, 2015 The fractal globule state is a popular model for describing chromatin packing in eukaryotic nuclei. Here we provide a scaling theory and dissipative particle dynamics (DPD) computer simulation for the thermal motion of monomers in the fractal globule state. Simulations starting from different entanglement-free initial states show good convergence which
M. V. Tamm +3 more
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Anomalous diffusion with absorbing boundary [PDF]
Physical Review E, 2007 In a very long Gaussian polymer on time scales shorter that the maximal relaxation time, the mean squared distance travelled by a tagged monomer grows as ~t^{1/2}. We analyze such sub-diffusive behavior in the presence of one or two absorbing boundaries and demonstrate the differences between this process and the sub-diffusion described by the ...
Kantor, Yacov, Kardar, Mehran
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Dual-Zone Gas Flow Characteristics for Gas Drainage Considering Anomalous Diffusion
Energies, 2022 Gas drainage in deep coal seam is a critical issue ensuring the safety of mining and an important measure to obtain gas as a kind of clean available energy.
Xiangyu Wang +4 more
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Khinchin Theorem and Anomalous Diffusion [PDF]
Physical Review Letters, 2008 4 pages, 3 ...
Lapas, Luciano Calheiros +4 more
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Superdiffusion revisited in view of collisionless reconnection [PDF]
Annales Geophysicae, 2014 The concept of diffusion in collisionless space plasmas like those near the magnetopause and in the geomagnetic tail during reconnection is reexamined making use of the division of particle orbits into waiting orbits and break-outs into ballistic ...
R. A. Treumann +3 more
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A Generalized Diffusion Equation: Solutions and Anomalous Diffusion
Fluids, 2023 We investigate the solutions of a generalized diffusion-like equation by considering a spatial and time fractional derivative and the presence of non-local terms, which can be related to reaction or adsorption–desorption processes.
Ervin K. Lenzi +4 more
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Disentangling sources of anomalous diffusion [PDF]
Diffusion Fundamentals, 2013 4 pages, 3 figures, submitted to Phys.
Thiel, Felix +2 more
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Unexpected crossovers in correlated random-diffusivity processes
New Journal of Physics, 2020 The passive and active motion of micron-sized tracer particles in crowded liquids and inside living biological cells is ubiquitously characterised by ‘viscoelastic’ anomalous diffusion, in which the increments of the motion feature long-ranged negative ...
Wei Wang +4 more
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