Physics department colloquium is Feb. 17 It has been almost a century since the discovery of superconductivity by Kamerlingh Onnes in 1911. At least four Nobel Prizes in physics have since been awarded to works on superconductivity. Yet superconductivity itself is still an active research field in many aspects. One of them is the investigation of superconductivity in low dimensions, interfaces and in presence of external influences. I shall begin by a brief introduction to the phenomena of superconductivity and then move on to discuss my own works, such as the critical velocity in low dimensional superconductors, the flux dependence of critical temperature in small superconducting rings, and the anomalous behavior of critical currents by an external magnetic field. I shall end by describing my ongoing effort of extending some of the above ideas into another very actively evolving research field, namely that of untracold atoms, and in particular the so-called BEC-to-BCS crossover phenomenon The colloquium is at 4 p.m. Tuesday, Feb. 17, in 211 Witmer Hall. Coffee and cookies will be served at 3:30 p.m. in 215 Witmer Hall. -- Dr. Tzu-Chieh Wei, Superconductivity in presence of a constant flow, magnetic field and impurities, Physics Department Witmer Hall Room 211, connie_cicha@und.nodak.edu, 701-777-2911