BACKGROUND Methods used at an index episode of non-fatal self-harm may predict risk of future suicide. Little is known of suicide risk associated with most recent non-fatal method, and whether or not change in method is important. METHODS A prospective cohort of 30,202 patients from the Multicentre Study of Self-harm in England presenting to six hospitals with self-harm, 2000-2007, was follow...

The harmonic index of a graph G, is defined as the sum weights 2/d(u)+d(v) all edges uv where d(u) degree vertex u in G. In this paper we find minimum bicyclic order n and diameter d. We also characterized graphs reaching bound.

BACKGROUND No ecological studies have examined the relationship between area characteristics, individual characteristics and self-harm repetition. AIMS To investigate the association between area-level factors and incidence and repetition of self-harm, and to identify which area-level factors are independently associated with repetition after adjustment for individual factors. METHOD Prospe...

A catalog record for this book is available from the British Library. Harmonic mappings in the plane / Peter Duren. Includes bibliographical references and index.

We report here on a series of tricyanovinylaniline chromophores for use as dopants in poled poly(methyl methacrylate)waveguides for anomalous dispersion phase-matched second harmonic generation. Second harmonic generation measurements as a function of mode index confirmed anomalous dispersion phase-matching efficiencies as large as 245%/Wcm over a propagation length of about 35 μm. The waveguid...