Signal Data, Modelling and Simulation: Directory : Modelling  Biological Cybernetics (Biocybernetics): A Portal Server covering biological cybernetics and systems biology. BioModels Database: A Database of Annotated Published Models, Wellcome-Trust Genome Campus, European Bioinformatics Institute, Hinxton Cambridge, United-Kingdom. BIOMS: Center for Modelling and Simulation in the Biosciences (Heidelberg, Germany). Library of Mathematical Models of Biological Systems: A Project of the Purdue University's Department of Foods and Nutrition. PhysioNet: Research Resource for Complex Physiologic Signals The Physiome Project TU Dresden - Funktionstypenbibliothek für Biologen: Library of Mathematical Functions for Biologists (in German) Thyrotropic Feedback Control: Information on parametrically isomorphic models of the hypothalamic-pituitary-thyroid feedback control.