overview of the unique characteristics of United States (U.S.) forests and sustainable. forestry practices, the reinforcing system of federal and state forest management laws, and the U.S. certification programs that further support sustainable forestry.
Meeting with the Mentor: The hero encounters someone who can give him advice and ready him for the journey ahead. Crossing the First Threshold: The hero leaves his ordinary world for the first time and crosses the threshold into adventure. Tests, Allies, Enemies: The hero learns the rules of his new world. During this time, he endures tests of strength of will, meets friends, and comes face to face with foes.
Individuals on the right side of the threshold line represent those affected by the disorder. Threshold To account for a discontinuous phenotype (i.e. affected or not affected) with an underlying continuous distribution, it is proposed that a threshold exists above which the abnormal phenotype is expressed.