Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relating pain intensity of newborns to onset of nonlinear phenomena in
  cry recordings   The cries of several full term newborns, recorded during blood sampling, were
analyzed. Spectrograms showed the appearance of irregular patterns related to
the pain assessed using the method of the DAN scale. In particular, the
appearance of Noise concentration Patterns (NP) in spectrograms was related to
the increase of the pain suffered by the newborns. In this scenario, pain
constitutes a bifurcation parameter for the vocal folds dynamic, inducing a
Ruelle-Takens-Newhouse chaotic transition.

6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc