Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transport powered by bacterial turbulence   We demonstrate that collective turbulent-like motion in a bacterial bath can
power and steer directed transport of mesoscopic carriers through the
suspension. In our experiments and simulations, a microwedge-like "bulldozer"
draws energy from a bacterial bath of varied density. We obtain that a maximal
transport speed is achieved in the turbulent state of the bacterial suspension.
This apparent rectification of random motion of bacteria is caused by polar
ordered bacteria inside the cusp region of the carrier, which is shielded from
the outside turbulent fluctuations.

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The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
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The categories of this paper are: econ
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con