Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Models and Simulations in Material Science: Two Cases Without Error Bars   We discuss two research projects in material science in which the results
cannot be stated with an estimation of the error: a spectro- scopic
ellipsometry study aimed at determining the orientation of DNA molecules on
diamond and a scanning tunneling microscopy study of platinum-induced nanowires
on germanium. To investigate the reliability of the results, we apply ideas
from the philosophy of models in science. Even if the studies had reported an
error value, the trustworthiness of the result would not depend on that value
alone.

18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin