Turbulent convection exemplifies many of the startling aspects of turbulent flows that have
been uncovered in the past two decades, but frequently exhibits a novel twist. Thus, as in the�…

The advection of a passive substance by a turbulent flow is important in many natural and
engineering settings. The concentration of such a substance can exhibit complex dynamic�…

The statistical dynamics of a classical random variable that satisfies a nonlinear equation of
motion is recast in terms of closed self-consistent equations in which only the observable�…

Embryonic development is orchestrated by robust and complex regulatory mechanisms
acting at different scales of organization. In vivo studies are particularly challenging for�…

A statistical mechanical treatment of the wormlike chain model (WLC) isused to analyze
experiments in which double-stranded DNA, tethered at one end, is stretched by a force�…

Gene expression is a stochastic, or “noisy,” process. This noise comes about in two ways.
The inherent stochasticity of biochemical processes such as transcription and translation�…

Clonal populations of cells exhibit substantial phenotypic variation. Such heterogeneity can
be essential for many biological processes and is conjectured to arise from stochasticity, or�…

Intermittency effects, in magnitude comparable to the early Batchelor & Townsend (1949)
experiments, are studied for stationary, homogeneous, isotropic turbulence by means of a�…

20. Rat T9 cells were transfected by the calcium phosphate precipitation method with 1 jig of
pCMVEN10 complementary DNA (cDNA)(19) and 0.1 jig of pSV2neo (neomycin resistance�…

The influence of hydrodynamic interactions on the coarsening rate r of a mist of droplets
combining through diffusive coalescence is examined in detail. For a sufficiently rarified mist�…