T. R. M. Howard (current) C0 and C1 control codes Mudbura Sign Language Anastasius of Constantinople ATC code R01 Citrus ryukyuensis Integral linear operator Andrew Blake (computer scientist) Algorithmic accountability Pat Conroy Extracellular matrix MOD'SPE Paris ATC code A12 Resiutta Omitted-variable bias Geological modelling ScienceDirect Modjeska Monteith Simkins OpenLDAP Circular polarization