Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of shape anisotropy on transport in a 2-dimensional computational
  model: Numerical simulations showing experimental features observed in
  biomembranes   We propose a 2-d computational model-system comprising a mixture of spheres
and the objects of some other shapes, interacting via the Lennard-Jones
potential. We propose a reliable and efficient numerical algorithm to obtain
void statistics. The void distribution, in turn, determines the selective
permeability across the system and bears a remarkable similarity with features
reported in certain biological experiments.

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The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
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The categories of this paper are: eess
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph