During the dissertation colloquium students present their research area, research methodology, results (publications) and final steps towards the written thesis. Similar to the thesis defense at the end of PhD studies, students are asked to pre-defend their thesis in front of  the entire faculty and face questions from their colleagues. It is the last milestone before the dissertation enters the final phase. We are happy with our PhD students Bianca Wiesmayr and Virendra Ashiwal, who passed yesterday's dissertation colloquium with flying colors.