Are we closing the gap in faculty development needs for feedback training?
While the perceived gap in providing training for faculty in giving feedback to anesthesia residents has narrowed, program director responses suggest a substantial unmet need remains. Innovative new approaches are in order.
Transposition bursts do not help ISs persist in a bacterial population in the long run because most burst-induced mutations are deleterious and therefore not favoured by natural selection. However, bursts do create more genetic variation through which occasional advantageous mutations can help organisms adapt. Regulation of IS transposition bursts and stronger positive selection of the elements interact to slow down the burst-induced extinction of ISs.