**About the Editor**

**Mojm´ır Sob ˇ** is a Professor at the Department of Chemistry at the Masaryk University in Brno, at the Institute of Physics of Materials of the Czech Academy of Sciences, Brno and at the Central European Institute of Technology at the Masaryk University in Brno. His research interests include applications of electronic structure calculations in solid-state physics, chemistry and materials science as well as problems regarding positron annihilation in solids. He is known as a pioneer in application of quantum-mechanical approaches to understanding the properties of new prospective materials, e.g. their ultimate strength, magnetic behavior, phase diagrams and role of extended defects.
