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A nice coffee study break . In this talk I will discuss findings from a user study that explores the usage of users ' gaze patterns to understand whether students engage in a meta-cognitive behavior known as self-explanation , during interaction with an Intelligent Learning Environment for mathematical functions . On the business side , a recent US Department of Labor study reports that women are not successfully moving beyond mid-management boundaries in this industry - - in fact , there 's been only a 3 % gain in the past 10 years . The objective of the study was to try to differentiate between two orthogonal gradients , both of which affect vegetation structure : the natural environmental gradient between the cliff edge and dense forest ; and an anthropogenic gradient , generated by the presence of major hiking trails parallel to the cliff edges . Although the absence of melanocytic proliferation has been a typical pathologic feature , one study recently noted an increase of nonnested intraepidermal melanocytes in the areas of clinical hyperpigmentation using S100 and L-3 ,4 dihydroxyphenylalanine immunohistochemistry studies ( Moore , 2004 ) .