  In this paper we consider loop corrections to the spin-independent
WIMP-nucleon scattering cross section in bottom-quark flavored scalar-type dark
matter models. We focus on two scenarios: (a) a complex scalar dark matter with
a scalar particle as the mediator; and (b) a real scalar dark matter with a
vector boson as the mediator. In both scenarios, the direct detection cross
sections are either spin-dependent or kinematically forbidden at the
tree-level. Corrections induced by the WIMP-gluon effective operator,
scalar-type WIMP-quark effective operator, and the twist-2 effective operator
are calculated. Numerical results show that loop induced spin-independent
WIMP-nucleon scattering cross sections are quite considerable in both
scenarios.
