Text Box: Call for paper     People interested in presenting a paper in the conference must submit an application by Thursday the 30th of November, 2006 following the Paper Submission Guidelines:   ·     A summary of the paper between 150 and 300 words in length (including three key words). Please include some basic contact information about yourself. ·     The summary can be submitted in English, Spanish or Portuguese, but we encourage the use of English for a  more widespread communication. ·     Any author may submit or present only one contribution. ·     The paper must not have been published. ·     All submissions will be refereed by a commission.