The hydrogen Lyman-alpha line is of utmost importance to many fields of astrophysics. This UV line being conveniently redshifted with distance to the visible and even near infrared wavelength ranges, it is observable from the ground, and provides the main observational window on the formation and evolution of high redshift galaxies. Absorbing systems that would otherwise go unnoticed are revealed through the Lyman-alpha forest, Lyman-limit, and damped Lyman-alpha systems, tracing the distr...

Are you hoping to apply what you’ve learnt in your studies to real world problems? Are you wondering how your work might make a difference?This book offers a model to ensure that your application of theoretical social psychology stands the best chance of success. Follow the PATHS model help you develop your intervention, test it, action it, and evaluate it.Each chapter focuses on a step in the model and is built around a real world example. Full of practical advice, each ch...