Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Post-ischaemic treatment with the cyclooxygenase-2 inhibitor nimesulide
  reduces blood-brain barrier disruption and leukocyte infiltration following
  transient focal cerebral ischaemia in rats
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn