Journal of Ethiopian Studies (JES) is the first and the oldest academic journal in the entire history of Addis Ababa University, established in 1963 with the aim of conducting, promoting, and ...

Theoretical physics is the development of mathematical formalisms and computational protocols for describing all aspects of objects found in the world around us and their interaction. This can involve ...

Condensed-matter physics is the study of substances in their solid state. This includes the investigation of both crystalline solids in which the atoms are positioned on a repeating three-dimensional ...