Original sentence: Boardman died on 23 November 2018.Boardman made substantial contributions to his University,  leading the School of Sciences.Boardman was honoured with a special session in his name at the 3rd International Conference on Metamaterials, Photonic Crystals and Plasmonics (Meta '12) in Paris in 2012
Edited sentence: Allan made substantial contributions to his University,  leading the School of Sciences.Allan was honoured with a special session in his name at the 3rd International Conference on Metamaterials, Photonic Crystals and Plasmonics (Meta '12) in Paris in 2012.Sadly, Allan Boardman passed away on 23 November 2018