The preparation and use of nucleic acid fragments encoding fatty acid desaturase enzymes are described. A speech recognition server downloads the acoustic data and the corresponding text transcript that are stored in the user profile. Next a set of records is automatically generated from the plurality of records. In some embodiments, a FEAD includes a PMD having a sun shaft configured to couple to a sun of the PMD and to an electric motor component, such as an electrical armature or an electrical field. A phase differential calculator may be included that compares phase information at different resolutions. A condensing apparatus may be coupled with a humidifier to form part of a desalination system, in certain cases.