PVC Degradation and Stabilization, Fifth Edition contains all the information necessary for the successful design of stabilization formulas in any PVC-based product. Other topics covered include degradation by thermal energy, UV, gamma, and other forms of radiation, chemical degradation, and more. Many new topics are of particular interest today, including new stabilization methods and mechanisms (e.g., synergistic mixtures containing hydrotalcites and their synthetic equivalents, beta-diketo...

Develop the skills you need to produce diagnostic-quality medical images! Radiologic Science for Technologists: Physics, Biology, and Protection, 12th Edition provides a solid foundation in the concepts of medical imaging and digital radiography. Featuring hundreds of radiographs and illustrations, this comprehensive text helps you make informed decisions regarding technical factors, image quality, and radiation safety for both patients and providers. New to this edition are all-digital image...

Demonstrates that the search for oral origins in African literature is a quest for African authenticity. In a critique and revision of the conceptual category of orality as it has been understood and used by scholars, this title stresses the transformation of narrative genres as an index of sociopolitical relations and authorial vision.

"This is an extremely well written and carefully argued book that is quite persuasive. It should be essential reading for every scholar in African literature....