BACKGROUND Although habitat use reflects a dynamic process, most studies assess habitat use statically as if an animal's successively recorded locations reflected a point rather than a movement process. By relying on the activity time between successive locations instead of the local density of individual locations, movement-based methods can substantially improve the biological relevance of ut...

Molecules are in constant motion, if not frozen around 0 K, but their Brownian motion is random. Overcoming this randomizing effect and generating directional motion at the molecular level with artificial systems is still a challenge. Research in this area is inspired by the vision of transferring the concept of an engine or a motor to the molecular level. That this is possible is illustrated b...

The presented paper is devoted to studying the dynein molecular motor and its stochastic description. model aims obtain good results comparable literature sources qualitatively. We choose Hoover-Holian oscillator describe behaviour of each legs. It can catch movement produced by Brownian motion be modified simulate a load.

Many aspects of human motor behavior can be understood using optimality principles such as optimal feedback control. However, these proposed optimal control models are risk-neutral; that is, they are indifferent to the variability of the movement cost. Here, we propose the use of a risk-sensitive optimal controller that incorporates movement cost variance either as an added cost (risk-averse co...

The mechanism of rectified Brownian movement is used to analyze measured data for kinesin motion along microtubules. A key component of the mechanism is the diffusive movement of the microtubule binding heads of kinesin during the adenosine triphosphate (ATP) cycle. The first-passage time distribution for this step is analyzed in detail and is shown to be responsible for observed load-velocity ...

In Drosophila, several genetic phenomena are most easily explained by a model in which homologous chromosomes pair, at least transiently, and use regulatory information present on only one homolog to pattern expression from both homologs [1] [2] [3]. To accomplish pairing of sites on different chromosomes, there must be a mechanism by which communication between homologs is facilitated. However...

The translocation of tRNAs through the ribosome proceeds through numerous small steps in which tRNAs gradually shift their positions on the small and large ribosomal subunits. The most urgent questions are: (i) whether these intermediates are important; (ii) how the ribosomal translocase, the GTPase elongation factor G (EF-G), promotes directed movement; and (iii) how the energy of GTP hydrolys...

this article deals with the study of the two-dimensional mixed convection magnetohydrodynamic (mhd) boundary layer of stagnation-point flow over a stretching vertical plate in porous medium filled with a nanofluid. the model used for the nanofluid incorporates the effects of brownian motion and thermophoresis in the presence of thermal radiation. the skin-friction coefficient, nusselt number an...

The price on the electricity market is constantly changing. Owing to characteristics of future movement relatively hard predict. For this reason following three processes are applied: process according geometric Brownian motion, mean reversion process, and spikes process. paper discusses all processes, including their definitions, formulas applications, as well upsides downsides.