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- Leonardo Dagdug, Inti Pineda
- The Journal of chemical physics
- 2012

This study focuses on the derivation of a general effective diffusion coefficient to describe the two-dimensional (2D) diffusion in a narrow and smoothly asymmetric channel of varying width, in theâ€¦ (More)

- Leonardo Dagdug, G. H. Weiss, Amir Gandjbakhche
- Physics in medicine and biology
- 2003

It is often adequate to model photon migration in human tissue in terms of isotropic diffusion or random walk models. A nearly universal assumption in earlier analyses is that anisotropic tissueâ€¦ (More)

- Leonardo Dagdug, Alexander M. Berezhkovskii, Yurii A Makhnovskii, Vladimir Yu Zitserman, Sergey M. Bezrukov
- The Journal of chemical physics
- 2011

Using Brownian dynamics simulations, we study the effective mobility and diffusion coefficient of a point particle in a tube formed from identical compartments of varying diameter, as functions ofâ€¦ (More)

- Alexander M. Berezhkovskii, Leonardo Dagdug, Sergey M. Bezrukov
- The Journal of chemical physics
- 2014

Diffusion in a comb-like structure, formed by a main cylindrical tube with identical periodic dead ends of cylindrical shape, occurs slower than that in the same system without dead ends. The reasonâ€¦ (More)

- Roberto Verdel, Leonardo Dagdug, Alexander M. Berezhkovskii, Sergey M. Bezrukov
- The Journal of chemical physics
- 2016

This paper deals with diffusion of point particles in linearly corrugated two-dimensional channels. Such geometry allows one to obtain an approximate analytical expression that gives the particleâ€¦ (More)

- Alexander M. Berezhkovskii, Leonardo Dagdug, Sergey M. Bezrukov
- The Journal of chemical physics
- 2015

Axial diffusion in a two-dimensional channel of smoothly varying geometry can be approximately described as one-dimensional diffusion in the entropy potential with position-dependent effectiveâ€¦ (More)

- Guillermo ChacÃ³n-Acosta, Leonardo Dagdug, Hugo A. Morales-TÃ©cotl
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2010

The relativistic equilibrium velocity distribution plays a key role in describing several high-energy and astrophysical effects. Recently, computer simulations favored JÃ¼ttner's as the relativisticâ€¦ (More)

- Leonardo Dagdug, Alexander M. Berezhkovskii, Yurii A Makhnovskii, Vladimir Yu Zitserman, Sergey M. Bezrukov
- The Journal of chemical physics
- 2012

We investigate transport of point Brownian particles in a tube formed by identical periodic compartments of varying diameter, focusing on the effects due to the compartment asymmetry. The paperâ€¦ (More)

- Alexander M. Berezhkovskii, Leonardo Dagdug
- The Journal of chemical physics
- 2010

We study the effect of the driving force on brownian motion of a point particle in a tube formed by identical spherical compartments, which create periodic entropy potential for the motion along theâ€¦ (More)

- Leonardo Dagdug, M V Vazquez, Alexander M. Berezhkovskii, Sergey M. Bezrukov
- The Journal of chemical physics
- 2010

This study is devoted to unbiased motion of a point Brownian particle in a tube with corrugated walls made of conical sections of a varying length. Effective one-dimensional description in terms ofâ€¦ (More)