1-7 August: Sexual Health Week; Contact: 020 7923 5216; www.fpa.co.uk 12 August: International Youth Day; Organised by the United Nations. Contact: www.un.org 31 August-3 September: Teachers of infant observation, London; The clinical and theoretical implications of infant observation. Contact: 020 7447 3829; www.tavi-port.org 8-9 September: Energising for action, York; Aimed at improving treatment and services for children with enuresis and incontinence. Contact: 0117 301 2102...