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Tailored to the new AQA Science syllabus, this "GCSE Higher Level Additional Science Workbook" contains loads of great questions to test their knowledge. There's a wide variety of question types, from short-answer questions to graphs and mini-essays, to give the best possible practice. It's great for use throughout the course or for final exam revision. This book is Higher Level, so it contains practice at all the material needed for a top GCSE grade. All AQA Additional Science units are covered in this book - Life Processes, Enzymes and Homeostasis, Genetics, Bonding and Reactions, Rates of Reaction, Using Ions in Solution, Forces and Motion, Electricity and the Atom. (Answer book available separately.)
Jason Woolford's thesis describes for the first time, a double [3+2] photocycloaddition of alkenes onto aromatic rings. Modern synthetic chemistry relies on the ability of researchers to uncover new and more efficient ways of creating highly complex structures. This work describes a novel, environmentally friendly photochemical step that converts in one pot, trivial starting materials into otherwise difficult to construct fenstrane frameworks.Ã¿ The rigid cores of these frameworks have significant potential in drug design. Moreover, the novelty of this work overtakes many other methods for the creation of chiral centres. No less than seven chiral centres are created in the photochemical step together with the formation of four carbon-carbon bondsÃ¿ and multifused rings. Jason's innovative work has been the subject of several publications in peer-reviewed journals.
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