& Pieve (1974). They arbitrarily defined rapid cycling as four or more mood episodes per year. Rapid cycling in relation to bipolar affective disorder has been defined by the DSM-IV criteria (American Psychiatric Association, 1994)(Box 1). Some patients show cycling frequencies in the order of weeks to days, a phenomenon known as ultra-rapid cycling. Cycling of discrete mood phases of less than...

Peak-hour week-day traffic congestion is a common challenge in urban mobility. Promotion of commuter cycling can help in alleviating this problem in many cities. This paper takes a data analytics approach to propose policies for promoting commuter cycling in Singapore. It uses farecard data to assess the commuter cycling potential and develops a data-driven approach to policy making. A spatio-t...

OBJECTIVES To (1) assess cycling-related questions that have been added to the electronic version of the American College Health Association National College Health Assessment II (ACHA-NCHA), (2) examine cycling prevalence, and (3) identify predictors of cycling in college students. PARTICIPANTS Predominately female (69%), undergraduate (89%), and white (85%) students (N = 949) from a large, ...