Zobrazeno 1 - 10
of 273
pro vyhledávání: '"Kafri Y"'
We consider networks made of parallel lanes along which particles hop according to driven diffusive dynamics. The particles also hop transversely from lane to lane, hence indirectly coupling their longitudinal dynamics. We present a general method fo
Externí odkaz:
http://arxiv.org/abs/1510.04150
Autor:
Solon, A. P., Stenhammar, J., Wittkowski, R., Kardar, M., Kafri, Y., Cates, M. E., Tailleur, J.
Publikováno v:
Physical Review Letters 114, 198301 (2015)
We derive from first principles the mechanical pressure $P$, defined as the force per unit area on a bounding wall, in a system of spherical, overdamped, active Brownian particles at density $\rho$. Our exact result relates $P$, in closed form, to bu
Externí odkaz:
http://arxiv.org/abs/1412.5475
Pressure is the mechanical force per unit area that a confined system exerts on its container. In thermal equilibrium, it depends only on bulk properties (density, temperature, etc.) through an equation of state. Here we show that in a wide class of
Externí odkaz:
http://arxiv.org/abs/1412.3952
Autor:
Shapira, N., Lamhot, Y., Shpielberg, O., Kafri, Y., Ramshaw, B. J., Bonn, D. A., Liang, Ruixing, Hardy, W. N., Auslaender, O. M.
Publikováno v:
Phys. Rev. B 92, 100501(R) (2015)
We report drive-response experiments on individual superconducting vortices on a plane, a realization for a 1+1-dimensional directed polymer in random media. For this we use magnetic force microscopy (MFM) to image and manipulate individual vortices
Externí odkaz:
http://arxiv.org/abs/1401.0995
Autor:
Sheinman, M., Kafri, Y.
Publikováno v:
Phys. Biol. 9 (2012) 056006
The Hill coefficient is often used as a direct measure of the cooperativity of binding processes. It is an essential tool for probing properties of reactions in many biochemical systems. Here we analyze existing experimental data and demonstrate that
Externí odkaz:
http://arxiv.org/abs/1110.5997
Publikováno v:
Rep. Prog. Phys. 75 (2012) 026601
Problems of search and recognition appear over different scales in biological systems. In this review we focus on the challenges posed by interactions between proteins, in particular transcription factors, and DNA and possible mechanisms which allow
Externí odkaz:
http://arxiv.org/abs/1104.0910
Publikováno v:
J. Stat. Mech. P06009 (2011)
We consider a large class of two-lane driven diffusive systems in contact with reservoirs at their boundaries and develop a stability analysis as a method to derive the phase diagrams of such systems. We illustrate the method by deriving phase diagra
Externí odkaz:
http://arxiv.org/abs/1103.4677
Publikováno v:
Phys. Rev. Lett. 103, 138102 (2009)
Genomic expression depends critically both on the ability of regulatory proteins to locate specific target sites on a DNA within seconds and on the formation of long lived (many minutes) complexes between these proteins and the DNA. Equilibrium exper
Externí odkaz:
http://arxiv.org/abs/0901.4185
Publikováno v:
Phys. Rev. Lett. 102, 118109 (2009)
The extraction of membrane tubes by molecular motors is known to play an important role for the transport properties of eukaryotic cells. By studying a generic class of models for the tube extraction, we discover a rich phase diagram. In particular w
Externí odkaz:
http://arxiv.org/abs/0812.0805
Autor:
Lucks, J. B., Kafri, Y.
We present a simplified model of the dynamics of translocation of RNA through a nanopore which only allows the passage of unbound nucleotides. In particular, we consider the disorder averaged translocation dynamics of random, two-component, single-st
Externí odkaz:
http://arxiv.org/abs/q-bio/0703028