This book presents original research results on the leading edge of chemistry research. Each article has been carefully selected in an attempt to present substantial research results across a broad spectrum. Some of the topics included in this compilation are: the role of PTFE in tribological properties of polymide composites; Ytterbium compounds and applications; rare earth doped lutetium oxides; and highly efficient dehydration of aldoximes in the presence of Fe(ClO4) as catalyst.