Tesa S Journey

Volume I mainly focuses on the current understanding of the reaction pathways and mechanisms involved in several important catalytic conversions of cellulose and carbohydrates. It starts with nanoscale illustrations of biomass structures and describes various reactions including cellulose depolymerization to sugars, catalytic aldose-ketose isomerization and dehydration, selective oxidation, hydrogenolysis of cellulose and sugars, and the conversion of short carbohydrates. The specificity and function of different catalysts and reaction media in relation to the catalytic performances for these reactions are discussed with significant mechanistic details. Marcel Schlaf, PhD, is a Professor at the Department of Chemistry, University of Guelph, Canada. Z. Conrad Zhang, PhD, is a Professor at the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China.

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In Dante's Journey to Polyphony, Francesco Ciabattoni's erudite analysis sheds light on Dante's use of music in the Divine Comedy. Following the work's musical evolution, Ciabattoni moves from the cacophony of Inferno through the monophony of Purgatory, to the polyphony of Paradise and argues that Dante's use of sacred songs constitutes a thoroughly planned system. Particular types of music accompany the pilgrim's itinerary and reflect medieval theories regarding sound and the sacred. Combining musicological and philological scholarship, this book analyzes Dante's use of music in conjunction with the form and content of his verse, resulting in a cross-discipline analysis also touching on Italian Studies, Medieval Studies, and Cultural History. After moving from infernal din to heavenly harmony, Ciabattoni's final section addresses the music of the spheres, a theory that enjoyed great diffusion among the early middle ages, inspiring poets and philosophers for centuries.