10.06.2021 NCC Seminar – “Investigation of natural radioactivity in mineral water”, presentation Ph.D. Elena Geleva 27.05.2021 NCC Seminar – “A study of nano-magnetic iron-containing particles in the air above Sofia using Mössbauer spectroscopy”, presentation by Boyan Bonchev 20.05.2021 NCC Seminar – “Design and Applications of Functional Nucleic Acids for Control of Gene Expression and Creation of New Therapeutic Agents” presentation by Dr Katya Popova 12.05.2021 NCC Seminar – “STICS analysis reveals the role of tau phosphorylation in regulating lysosome transport” presentation by Pamela Yaninska Fourth international conference on cyclotron physics (21 – 24, November 2019, Varshets)