“…However, in all three cases, we propose to consider a mass-convection regime, where the mass-convection is modeled either in a deterministic (this section) or in a stochastic manner (next section). Typically a 2D nucleation mechanism, especially for biomolecular crystals, is considered most frequently [7,16,17], but specifically one may also expect more exceptional situations, such as a 1D nucleation by molecular rows, taking place on kinks [6], arising on the crystal boundary [18,19], or a 3D nucleation [14,15], in which the full possibility (3D interspace) is explored near the crystal surface by a penetrating (locally diffusive) external field [9]. We have to stipulate that…”