Complex sentence: Ian Maddieson is a linguist at UC Berkeley, an Adjunct Professor Emeritus at the University of New Mexico, Vice-President of the International Phonetic Association, and Secretary of the Association for Laboratory Phonology.
Split into simpler sentences: Ian Maddieson is a linguist formerly at UC Berkeley, and now an Adjunct Professor Emeritus at the University of New Mexico. He was Vice-President of the International Phonetic Association, and Secretary of the Association for Laboratory Phonology.