Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: From birds to bacteria: generalised velocity jump processes with resting
  states   There are various cases of animal movement where behaviour broadly switches
between two modes of operation, corresponding to a long distance movement state
and a resting or local movement state. Here a mathematical description of this
process is formulated, adapted from Friedrich et. al. (2006). The approach
allows the specification any running or waiting time distribution along with
any angular and speed distributions. The resulting system of partial
integro-differential equations are tumultuous and therefore it is necessary to
both simplify and derive summary statistics. An expression for the mean squared
displacement is derived which shows good agreement with experimental data from
the bacterium Escherichia coli and the gull Larus fuscus. Finally a large time
diffusive approximation is considered via a Cattaneo approximation (Hillen,
2004). This leads to the novel result that the effective diffusion constant is
dependent on the mean and variance of the running time distribution but only on
the mean of the waiting time distribution.

25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys