Offering over 2000 useful references and more than 200 helpful tables, equations, drawings, and photographs, this book presents research on food phosphates, commercial starches, antibrowning agents, essential fatty acids, and fat substitutes, as well as studies on consumer perceptions of food additives. With contributions from nearly 50 leading international authorities, the Second Edition of Food Additives details food additives for special dietary needs, contemporary studies on the role of food additives in learning, sleep, and behavioral problems in children, safety and regulatory requirements in the U.S. and the European Union, and methods to determine hypersensitivity.

'Business Travel and Tourism' provides a comprehensive, international overview of business tourism from both a theoretical and practical perspective. With the use of case studies from around the world, 'Business Travel and Tourism' explores a broad range of issues, including: * The global business tourism market * The design of business tourism facilities * The role of the destination in business travel and tourism * The social, economic, and environmental impacts of business tourism * The ethical dimension of business tourism * The marketing of business tourism products * The impact of new technologies on the business tourism market * How to organise successful conferences, exhibitions, and incentive travel packages Case studies include Disneyland Paris, Hong Kong, Amsterdam RAI International Exhibition and Congress Centre, Hilton, Page and Moy Marketing, Lufthansa, Air France, and Legoland UK. 'Business Travel and Tourism' is the first text to offer a comprehensive overview of the growing but neglected area of business tourism. With the use of a wide range of up-to-date case studies and major practical exercises to help students to broaden and deepen their understanding of this area of tourism, it is an invaluable text for all students on travel and tourism courses at degree and BTEC/HND level, or those taking tourism options in leisure, business studies, hospitality management or geography.

Prime Obsession taught us not to be afraid to put the math in a math book. Unknown Quantity heeds the lesson well. So grab your graphing calculators, slip out the slide rules, and buckle up! John Derbyshire is introducing us to algebra through the ages-and it promises to be just what his die-hard fans have been waiting for. "Here is the story of algebra." With this deceptively simple introduction, we begin our journey. Flanked by formulae, shadowed by roots and radicals, escorted by an expert who navigates unerringly on our behalf, we are guaranteed safe passage through even the most treacherous mathematical terrain. Our first encounter with algebraic arithmetic takes us back 38 centuries to the time of Abraham and Isaac, Jacob and Joseph, Ur and Haran, Sodom and Gomorrah. Moving deftly from Abel's proof to the higher levels of abstraction developed by Galois, we are eventually introduced to what algebraists have been focusing on during the last century. As we travel through the ages, it becomes apparent that the invention of algebra was more than the start of a specific discipline of mathematics-it was also the birth of a new way of thinking that clarified both basic numeric concepts as well as our perception of the world around us. Algebraists broke new ground when they discarded the simple search for solutions to equations and concentrated instead on abstract groups. This dramatic shift in thinking revolutionized mathematics. Written for those among us who are unencumbered by a fear of formulae, Unknown Quantity delivers on its promise to present a history of algebra. Astonishing in its bold presentation of the math and graced with narrative authority, our journey through the world of algebra is at once intellectually satisfying and pleasantly challenging.