Erratum: "Molecular dynamics simulations studies of nanoparticles in an isotropic liquid crystal matrix: Single particle behavior and pairwise interactions" [J. Chem. Phys. 124, 161101 (2006)] and "Molecular dynamics simulations of nanoparticles in dense isotropic nematogens: The role of matrix-induced long-range repulsive interactions" [J. Chem. Phys. 124, 184701 (2006)]