Tamaz ( Thomas ) V. Gamkrelidze ( Georgian á -- á á á á -- á ' á á á á á '' á á á `` á '' ) ( born October 23 , 1929 ) is a Georgian linguist , orientalist and public benefactor , Academician ( since 1974 ) and President ( since February , 2005 ) of the Georgian Academy of Sciences ( GAS ) , Doctor of Sciences ( 1963 ) , Professor ( 1964 ) . Tamaz ( Thomas ) V. Gamkrelidze ( Georgian á -- á á á á -- á ' á á á á á '' á á á `` á '' ) ( born October 23 , 1929 ) is a distinguished Georgian linguist , orientalist public benefactor and Hittitologist , Academician ( since 1974 ) and President ( since February , 2005 ) of the Georgian Academy of Sciences ( GAS ) , Doctor of Sciences ( 1963 ) , Professor ( 1964 ) .