T H E S I S   D E F E N S E

Candidate: Samah Zahran, MSc Candidate

Supervisor: Ian Janssen

Date: Tuesday, June 1, 2021

Time: 9:30 am

Location: Via Zoom

Discipline: Physical Activity Epidemiology

Thesis Title: Compositional Associations of Time Spent in Sleep, Screen Time, and Physical Activity with Polysubstance Use in Adolescents.

Guests are eligible to attend remote defenses (as of July 31, 2020) – If interested in attending this defense, please contact the Supervisor for permission.

https://www.queensu.ca/sgs/current-students/degree-completion/remote-thesis-examinations