![University of Waterloo on Twitter: University of Waterloo on Twitter:](https://pbs.twimg.com/media/D9Izt5MXYAA-vd0.jpg)
University of Waterloo on Twitter: "Congratulations to #UWaterloo Professor Ioannis (John) Chatzis of the Department of Chemical Engineering for being named Distinguished Professor Emeritus. @WaterlooENG #UWaterlooGrad π https://t.co/YFbPCsKYG7" / Twitter
![How Ioannis Kapodistrias imposed the first quarantine for a plague epidemic | Aristides Hatzis at MEGA channel - Kefim How Ioannis Kapodistrias imposed the first quarantine for a plague epidemic | Aristides Hatzis at MEGA channel - Kefim](https://kefim.org/wp-content/uploads/2020/05/Hatzis.png)
How Ioannis Kapodistrias imposed the first quarantine for a plague epidemic | Aristides Hatzis at MEGA channel - Kefim
Critical Gas CREST on Twitter: "Thank you Prof. Ioannis Chatzis. You weren't just a great instructor, but even a greater father and friend! https://t.co/9H9NmJ98BQ" / Twitter
Ioannis Chatzis - Space Controller/ Commercial Department - Yang Ming Marine Transport Corp. | LinkedIn
Ioannis Chatzis - Distinguished Emeritus Professor of Chemical Engineering - University of Waterloo | LinkedIn
![Ioannis CHATZIS | Professor | PhD | University of Waterloo, Waterloo | UWaterloo | Department of Chemical Engineering Ioannis CHATZIS | Professor | PhD | University of Waterloo, Waterloo | UWaterloo | Department of Chemical Engineering](https://www.researchgate.net/profile/Ioannis-Chatzis/publication/223497399/figure/fig1/AS:394125544312833@1470978260256/Binary-micrographs-of-the-ve-rock-samples-a-58A-b-15A-c-45A-d-9B-and-e_Q320.jpg)
Ioannis CHATZIS | Professor | PhD | University of Waterloo, Waterloo | UWaterloo | Department of Chemical Engineering
![Oral history interview with Dimitris Psaras - Collections Search - United States Holocaust Memorial Museum Oral history interview with Dimitris Psaras - Collections Search - United States Holocaust Memorial Museum](https://oralhistory-assets.ushmm.org/ohthumbs/RG-50.855.0044.01.01.jpg)