The time-evolution of the fluorescence spectrum of a dissolved chromophore excited by an ultrafast pump pulse is considered. The average value of the energy difference of the solute in its excited and ground states is used to describe the relaxation of the maximum of the transient fluorescence spectrum to its equilibrium value ~dynamic Stokes shift, DSS!. A simple formula for the normalized DSS...

We apply our new algorithms presented in the companion paper ~LTID: long-time-step inertial dynamics, IBD: inertial Brownian dynamics! for mass-dependent Langevin dynamics ~LD! with hydrodynamics, as well as the standard Brownian dynamical ~BD! propagator, to study the thermal fluctuations of supercoiled DNA minicircles. Our DNA model accounts for twisting, bending, and salt-screened electrosta...

A prominent feature of the literature on language documentation has been the importance of designing documentary projects in ways that allow speaker communities to benefit from the work of an outside researcher. Canonical examples of useful activities in this regard tend to involve things like the creation of materials that can be used for language development or offering training opportunities...