Results 81 to 90 of about 702,219 (333)

Tunable Persistent Random Walk in Swimming Droplets

open access: yesPhysical Review X, 2020
We characterize the motility of athermal swimming droplets within the framework of a persistent random walk. Just like active colloids, their trajectories can be modeled with a constant velocity V and a slow angular diffusion, but the random changes in ...
Adrien Izzet   +6 more
doaj   +1 more source

Late Points and Cover Times of Projections of Planar Symmetric Random Walks on the Lattice Torus [PDF]

open access: yes, 2014
We examine the sets of late points of a symmetric random walk on $Z^2$ projected onto the torus $Z^2_K$, culminating in a limit theorem for the cover time of the toral random walk.
Carlisle, Michael
core  

Comparing mixing times on sparse random graphs

open access: yes, 2018
It is natural to expect that nonbacktracking random walk will mix faster than simple random walks, but so far this has only been proved in regular graphs.
Ben-Hamou, Anna   +2 more
core   +1 more source

HSP70 governs permeability and mechanotransduction in primary human endothelial cells

open access: yesFEBS Open Bio, EarlyView.
HSP70 chemical inhibition reduces endothelial cell proliferation and increases permeability, the latter supported by normal interendothelial junctional protein distribution. HSP70 also plays a role in shear stress response, a hemodynamic force naturally present in blood vessels and correlated with vessel protection.
Andrea Pinto‐Martinez   +5 more
wiley   +1 more source

A New Random Walk for Replica Detection in WSNs. [PDF]

open access: yesPLoS ONE, 2016
Wireless Sensor Networks (WSNs) are vulnerable to Node Replication attacks or Clone attacks. Among all the existing clone detection protocols in WSNs, RAWL shows the most promising results by employing Simple Random Walk (SRW).
Mohammed Y Aalsalem   +5 more
doaj   +1 more source

Counting planar random walk holes

open access: yes, 2007
We study two variants of the notion of holes formed by planar simple random walk of time duration $2n$ and the areas associated with them. We prove in both cases that the number of holes of area greater than $A(n)$, where $\{A(n)\}$ is an increasing ...
Beneš, Christian
core   +2 more sources

Critical dimensions for random walks on random-walk chains [PDF]

open access: yesPhysical Review E, 1996
The probability distribution of random walks on linear structures generated by random walks in $d$-dimensional space, $P_d(r,t)$, is analytically studied for the case $ \equiv r/t^{1/4}\ll1$. It is shown to obey the scaling form $P_d(r,t)= (r) t^{-1/2} ^{-2} f_d( )$, where $ (r)\sim r^{2-d}$ is the density of the chain.
Rabinovich S.   +3 more
openaire   +3 more sources

Long‐term culture of skin biopsies: maintenance of fibroblast production and competency of reprogramming

open access: yesFEBS Open Bio, EarlyView.
Skin biopsies taken from a patient with an ultra‐rare disorder as well as controls were cultured for up to 473 days. The chunks of skin were serially transferred to a new culture plate when confluent with fibroblasts. Different generations of fibroblasts were analyzed for cell and molecular properties, proliferation, and competence for reprogramming to
Sudiksha Rathan‐Kumar   +3 more
wiley   +1 more source

Bindweeds or random walks in random environments on multiplexed trees and their asympotics [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
We report on the asymptotic behaviour of a new model of random walk, we term the bindweed model, evolving in a random environment on an infinite multiplexed tree.The term multiplexed means that the model can be viewed as a nearest neighbours random walk ...
Mikhail Menshikov   +2 more
doaj   +1 more source

Random walks with random velocities

open access: yesPhysical Review E, 2008
We consider a random walk model that takes into account the velocity distribution of random walkers. Random motion with alternating velocities is inherent to various physical and biological systems. Moreover, the velocity distribution is often the first characteristic that is experimentally accessible. Here, we derive transport equations describing the
Zaburdaev, V.   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy