Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solution effects and the order of the helix-coil transition in
  polyalanine   We study helix-coil transitions in an all-atom model of polyalanine.
Molecules of up to length 30 residues are investigated by multicanonical
simulations. Results from two implicit solvent models are compared with each
other and with that from simulations in gas phase. While the helix-coil
transition is in all three models a true thermodynamic phase transition, we
find that its strength is reduced by the protein-solvent interaction term. The
order of the helix-coil transition depends on the details of the solvation
term.

6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom