Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of shear-transformation zones in amorphous plasticity:
  non-linear theory at low temperatures   We use considerations of energy balance and dissipation to derive a
self-consistent version of the shear-transformation-zone (STZ) theory of
plastic deformation in amorphous solids. The theory is generalized to include
arbitrary spatial orientations of STZs. Continuum equations for elasto-plastic
material and their energy balance properties are discussed.

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The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex