Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Persistence-driven durotaxis: Generic, directed motility in rigidity
  gradients   Cells move differently on substrates with different elasticities. In
particular, the persistence time of their motion is higher on stiffer
substrates. We show that this behavior will result in a net transport of cells
directed up a soft-to-stiff gradient. Using simple random walk models with
controlled persistence and stochastic simulations, we characterize this
propensity to move in terms of the durotactic index measured in experiments. A
one-dimensional model captures the essential features of this motion and
highlights the competition between diffusive spreading and linear, wavelike
propagation. Since the directed motion is rooted in a non-directional change in
the behavior of individual cells, the motility is a kinesis rather than a
taxis. Persistence-driven durokinesis is generic and may be of use in the
design of instructive environments for cells and other motile, mechanosensitive
objects.

21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con