Moment transport equations and their application to the perturbed
  universe
  There are many inflationary models that allow the formation of the
large-scale structure of the observable universe. The non-gaussianity parameter
$f_{NL}$ is a useful tool to discriminate among these cosmological models when
comparing the theoretical predictions with the satellite survey results like
those from WMAP and Planck. The goal of this proceeding contribution is to
review the moment transport equations methodology and the subsequent
calculation of the $f_{NL}$ parameter.
