Controlled permeability films are provided wherein spherical andor nonporous filler particles having a size greater than the intrinsic thickness of the film are incorporated in a film forming polymer and the film is treated to reduce the carbon dioxide to oxygen permeability ratio of the film. The user-selected restriction limits the set of smoothing vectors according to a normal of a surface corresponding to the primitive. The body may be a conduit configured for attachment to a support surface. A feature extraction module with a fingerprint oriented thinning function. The specified attribute indicates that an instance of the programming type is to be serialized with XML. Each remote communications facility is adapted to enable a customer, after viewing the data, graphics, and audio, to electronically negotiate a price for the purchase of the goods and services.