XML documents may contain a large diversity of characters. The Character Repertoire Validation for XML (CRVX) language is a simple schema language for specifying character repertoire constraints. These constraints can be specific for syntaxand/or context-based parts of an XML document. The constraints are based on the character classes introduced by XML Schema’s regular expressions.

CONTENTS Page I-INTRODUCTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333 (a) General Remarks, Notation, and Definitions . . . . . . . . . . . . . . . 333 ( 6 ) Review of the Solutions of the Problem of Estimation Advanced Hereto . . . 343 ( c ) Estimation by Unique Estimate and by Interval . . . . . . . . . . . . . 346 11-CONFIDENCE INTERVALS . . . . . . . . . . . . . . . ...

Bioenergy in general, and biofuels particular, have come up to the renewable energy stage with some peculiar strength, overall terms of alternatives for transportation. Some drivers behind this option are shared on a global scale, such as reduction GHG’s emissions, enhancement security conditions. others more local nature, like diversification markets agricultural commodities, dynamization rura...