1. XII International Specialised Conference on Watershed and River Basin Management – Recife 2011<br />Title:<br />Instructions for abstract format to IWA Conference<br />Authors:<br />Helio Leandro Lopes1; Maria do Carmo Martins Sobral2 & Gustavo Lira de Melo2<br />1 Federal University of San Francisco - UNIVASF, Address code: 56300-000 - Petrolina - PE, Brazil. lopes@xxx.exemple.br<br />2 Federal University of Pernambuco – UFPE, Address code: 51000-000 - Recife - PE, Brazil {sobral, melo}@xxx.exemple.br<br />Theme wherever be shown:<br />Type of presentation (oral or poster):<br />Language of presentation of the paper (English or Portuguese):<br />Abstract. <br />This meta abstract describes the style to be used in abstract for the IWA 2011 Conference. It serves as a model to be used by the authors when preparing their abstracts. This document is available on the Web at < http://iwa2011recife.wordpress.com/register/model.doc>. The Abstract is very important. It is the first part of your paper to be read by the scientific community; it is the first impression concerning your work. State clearly the problem, hypotheses and objectives. Describe the rationale and methodology. Report the main results, and conclusions. Do not use automatic translation; in general, the result can be very poor and may severely influence negatively the acceptance of your paper. Before sending the paper, revise the whole text carefully. The Abstract for this Conference must be about 550 words. Not too short, not too long. As a reference, this text is 161 words. Use at least three and at most six keywords that are not in the title of the work.<br />Keywords: water quality, river basin, modeling.<br />