I am Dr. Zeleke Deressa from Ambo University, Ethiopia, specializing in condensed matter physics with a focus on materials theory studies using density functional methods. My research primarily explores diluted magnetic semiconductors and superconductors, and I have strong expertise in performing first-principles ab initio simulations with quantum mechanical software packages such as VASP and Quantum ESPRESSO. Currently, I serve as the Director of Library Services at Ambo University, managing academic resources to support research, teaching, and learning.