Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bethe approximation for a DNA-like self-avoiding walk model with
  variable solvent quality   The phase diagram and critical behaviour of a simple toy model for DNA
zipping/unzipping is examined in the framework of the Bethe approximation. The
effects of solvent quality are included, and found to lead to a variety of
different thermodynamic behaviours.

14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph