(135)Concentration Dependence of Diffusion Constant.

Charge transport in DNA: dependence of diffusion coefficient on temperature and electron-phonon coupling constant.

The diffusion coefficient is calculated for a charge propagating along a double-stranded DNA, while it interacts with the nonlinear fluctuational openings of base pairs. The latter structural dynamics of DNA is described by the Peyrard-Bishop-Dauxois model [T. Dauxois, M. Peyrard, and A. R. Bishop, Phys Rev. E 47 R44 (1993)], which represents essential anharmonicities of base-pair stretchings. ...

The sedimentation constant, diffusion constant and molecular weight of lactoglobulin.

Coupling-Constant Dependence of Atomization Energies

Ž . Ž . ABSTRACT: The local spin-density LSD functional and Perdew]Wang 91 PW91 generalized gradient approximations to atomization energies of molecules are investigated. We discuss the coupling-constant dependence of the atomization energy and why exchange errors of the functionals are greater than exchange]correlation errors. This fact helps to justify hybrid schemes which mix some exact exch...

Dependence of Fractional Order Diffusion Model Parameters on Diffusion Time

INTRODUCTION At high b-values (e.g., ≥1,500 s/mm), it is well known that diffusion-induced MR signal loss in the brain tissue exhibits anomalous behavior that cannot be described by a mono-exponential function. This phenomenon has been attributed to tissue heterogeneity manifested by cellular structures, cell membranes, and/or intraand extra-cellular spaces [1]. Over the past few years, a numbe...

Pressure Dependence of Damping Constant of Dislocation Motion in Crystals

Ultrasonic attenuation in Harshaw LiF and NaCl crystals in deformed and y-irradiated states has been measured at 5 a 100 MHz under hydrostatic pressure up to 3500 kg/cmz. By analyzing the data on the basis of the vibrating string model of dislocation, the pressure derivative of damping constant for dislocation motion was determined. The results were compared with theories of dislocation damping...