Measuring development, growth and welfare is an important issue in normative and positive economics.The issue is more critical in developing economies where a good statistical indicator of income, livingstandard or poverty is crucial for decision-makers in corporate, government, non-government andinternational organizations in their for-profit or non-profit plans to promote business and trade, ...

this paper consists of three sections. in the first section an efficient method is used for decomposition of the canonical matrices associated with repetitive structures. to this end, cylindrical coordinate system, as well as a special numbering scheme were employed. in the second section, divide and conquer method have been used for eigensolution of these structures, where the matrices are in ...

BACKGROUND Flexible airway endoscopy (FAE) is an accepted and frequently performed procedure in the evaluation of children with known or suspected airway and lung parenchymal disorders. However, published technical standards on how to perform FAE in children are lacking. METHODS The American Thoracic Society (ATS) approved the formation of a multidisciplinary committee to delineate technical ...