Young men and women, including university students, have been at the forefront of the protest movement which is accompanied by a brutal state crackdown in which more than 300 people were killed with several thousand arrested.Universities students defy crackdownIn defiance of the authorities' warnings, students announced in separate statements they would not attend classes at the beginning of the eighth week of protests.In the northwestern city of Qazvin, dozens were heard chanting similar slogans at the mourning ceremony for Javad Heydari, a protester killed by the security services.The QR code on the students’ cards is being used to identify these students," according to Sharif Today, a media outlet that covers news at Sharif University of Technology in Tehran.At least 16 students at Babol Noshirvani University have been banned from entering the university over the past days, according to information received by IranWire."