Jiali Shen will defend Ph.D. thesis titled “OXIDATION OF DIMETHYL SULFIDE AND IODINE IN THE MARINE ATMOSPHERE, AND THEIR CONTRIBUTION TO NEW PARTICLE FORMATION” on Wednesday, 19 April 2023 at 12:15. The defense will take place in auditorium A110, Chemicum (A.I. Virtasen aukio 1, 00560 Helsinki). The opponent is Professor Tim Bertram from the University of Wisconsin-Madison, and the custos is Associate Professor Federico Bianchi from the University of Helsinki. The link to the remote connection public defense is: https://helsinki.zoom.us/j/66195089290