AVIATION: PatriciaV. Agostino, Santiago A. Plano and Diego A. Golombek of Universidad Nacionalde Quilmes, Argentina, for their discovery that Viagra aids jetlag recoveryin hamsters.REFERENCE: "Sildenafil Accelerates Reentrainment of Circadian Rhythms After Advancing Light Schedules," Patricia V. Agostino, Santiago A. Plano and Diego A. Golombek, Proceedings of the National Academy of Sciences, vol. 104, no. 23, June 5 2007, pp. 9834-9.