Went to a job website (monster.co.uk) where you can fill out a profile, among other things asking for your education. You can enter "Degree Level", "School Name", "Dates Attended", and "Concentrations".
So the question is: Is my English much worse than I thought and "Concentrations" means anything meaningful in this context, or is this just nonsense? I assume they mean "Focus". I'd also be interested if there is better word than "Focus" as a headline for describing what your main subjects were.