A roadmap through the intricacies of public documents and online databases, the book also highlights genetic testing resources that can make it possible to know one's distant tribal roots in Africa.For Oprah, the path back to the past was emotion-filled and profoundly illuminating, connecting the narrative of her family to the larger American narrative and "anchoring" her in a way not previously possible. For the reader, Finding Oprah's Roots offers the possibility of an equally rewarding experience.

    Those principles included modern theories of atomic and molecular structure, quantum mechanics, statistical mechanics and thermodynamics. In addition, Dr. Pauling attempted to correlate the theories with descriptive chemistry, the observed properties of substances, to introduce the student to the multitude of chemical substances and their properties.In this extensively revised and updated third edition, the Nobel prizewinning author maintains an excellent balance between theoretical and descriptive material, although the amount of descriptive chemistry has been decreased somewhat, and the presentation of the subject, especially in relation to the nonmetals, has been revised in such a way as to permit greater correlation with the electronic structure of atoms, especially electronegativity. The principles of quantum mechanics are discussed on the basis of the de Broglie wavelength of the electron. The quantized energy levels of a particle in a box are derived by means of a simple assumption about the relation of the de Broglie waves to the walls of the box. No attempt is made to solve the Schrödinger wave equation for other systems, but the wave functions of hydrogen-like electrons are presented and discussed in some detail, and the quantum states for other systems are also covered. Statistical mechanics is introduced before thermodynamics, and the discussion of thermodynamics is based on it. This arrangement reflects the author's belief that beginning students can understand statistical mechanics better than chemical thermodynamics. Aimed at first-year college students who plan to major in chemistry or closely related fields, the book is written in a logical, clear and understandable style. In addition, many excellent figures are included, along with numerous problems and 75 pages of appendixes covering such topics as symmetry of molecules and crystals, hybrid bond orbitals, and magnetic properties of substances.

    * Enhanced sections throughout text provide much firmer foundation than the first edition. * Literature citations are given throughout for reference to additional material.

    It treats the subject as a coherent whole, complete with numerous logical connections, consequences, and an underlying structure and language. Employing an approach based on mechanism and reaction type, the book empasizes understanding ideas rather than merely memorizing facts. It shows students how to realistically draw molecules and mechanisms to reveal the fundamental chemistry.Using a fresh, accessible writing style as well as examples from everyday life, the authors explain the basics of organic chemistry carefully and thoroughly. A special focus on mechanism, orbitals, and stereochemistry helps students gain a solid comprehension of important factors common to all reactions. The book's innovative design enhances clarity and instruction with boxes that separate summary information and other material from the main text; a variety of colors that draw attention to items such as atoms, molecules, and orbitals; and figures that are drawn in red with significant parts emphasized in black. Early chapters feature carbonyl group reactions, and later chapters systematically develop the chemistry through discussions of spectroscopy, stereochemistry, and chemical reactions.Each chapter opens with a Connections box, divided into three columns:- Building on: Details material from previous chapters that relate to the current chapter- Arriving at: Provides a guide to the content of the chapter- Looking forward to: Previews later chapters, which develop and expand the current material

         Ronan O'Gara has been at the heart of Munster and Irish rugby for the past fifteen years. Now, as he comes to the end of a glittering playing career, it is time for him to reflect on those many successes and occasional failures with the straight-talking attitude that has become his trademark. Never one to shy away from the truth, the result is Ronan O'Gara: Unguarded.     Packed full of anecdotes and analysis of the teammates O'Gara has been proud to share the shirt with, and of the coaches he has played under -- often in controversial circumstances -- this is the definitive record of an era when Munster rose to triumph in Europe, and Ireland to win the Grand Slam, before crashing down to earth again. It is simply the must-have rugby book of the year.

    Learn the Alphabet and pronunciation as well as useful phrases in 8 categories, such as greetings, travel and directions, making friends to business and emergencies. Download, read and enjoy your vacation like never before.

    In addition to being the most up-to-date communications text available, Simon Haykin has added MATLAB computer experiments.

    • Useful for collegiate students as well as for those who are opting for entrance examinations.This completely new and innovative textbook provides a comprehensive account of pericyclic reactions and organic photochemistry for undergraduate and postgraduate courses. The approach is based on mechanism and reaction type, and the subject matter is developed and concentrated on better understanding rather than on merely grasping factual knowledge.Salient Features: • Basics of the subject are explained in thorough details. • Important points are revisited and mentioned wherever they are relevant. • Provides over 200 excellent thought-provoking textual problems. • Glossary and questions for self-assessment are given at the end of each chapter. • The most important aspect of this book is Chapter 14 which contains about 400 problems and their solutions based on pericyclic reactions and photochemistry. • Applied photochemistry is also discussed in the book.

    and abroad, this reader-friendly yet authoritative volume bridges the gap between circuits and new electromagnetics material. Ulaby begins coverage with transmission lines, leading readers from familiar concepts into more advanced topics and applications. Includes six new sections on Waveguides and Cavity Resonators, replacing the material on geometric optics in Chapter 8. Presents new Technology Briefs on relevant topics, connecting concepts in the book to everyday applications found in real life, such as liquid crystal displays, the laser, GPS, and x-ray tomography. Includes an interactive CD-ROM that allows readers to gain physical intuition about electromagnetics. A useful reference for engineers.

    Captain Shore’s enthusiasm for firearms and especially for rifles led him to take every possible opportunity to try out different weapons, ammunition and methods of shooting. His interest was combined with sound common sense, and he would never countenance a rumour about a particular weapon or incident unless he was able to confirm it for himself.As a result everything in this book is based on his personal experience. In World War II Captain Shore took part in the British landings at D-Day, and fought in Normandy and northern Europe. He came across many different weapons in varying condition, some of the worst being those used by the Dutch and Belgian resistance fighters. He was keen to learn from experienced snipers and then to train others, and he became an officer sniping instructor at the British Army of the Rhine Training Centre.He shares a wealth of first-hand knowledge of different rifles, pistols, machine guns, ammunition, telescopes, binoculars and all the equipment a sniper should carry. This is not only an account of sniping in World War II but also a guide to all aspects of sniping based on personal knowledge and experience in training and battle. Illustrated heavily with photos, pictures and other illustrations of snipers, their weapons and their tactics.

    Includes expert coverage of new topics: Turbocodes, Turboequalization, Antenna Arrays, Digital Cellular Systems, and Iterative Detection. Convenient, sequential organization begins with a look at the historyo and classification of channel models and builds from there.

    All chapters have been thoroughly updated with the latest information as well as new case studies, practice questions, and exercises. This latest edition not only covers the how of clinical testing but also places greater emphasis on the what, why, and when in order to meet the needs of today's clinical laboratorians. A companion Website offers the full text online, objectives, a quiz bank, flashcards, glossary, and appendices for students and improved instructor's resources.

    Cases, datasets, and examples allow for a more real-world perspective and explore relevant uses of regression techniques in business today.

    citizens that nothing has more impact on our lives than the supply of and demand for energy. Its procurement dominates our economy and foreign policy more than any other factor. But the “energy question” is more confusing, contentious, and complicated than ever before. We need to know if nuclear power will ever really be safe. We need to know if solar and wind power will ever really be viable. And we desperately need to know if the natural gas deposits in Pennsylvania are a windfall of historic proportions or a false hope that will create more problems than solutions. Richard A. Muller provides all the answers in this must-read guide to our energy priorities now and in the coming years.

    New co-authors--Irl Bivens and Stephen Davis--from Davidson College; both distinguished educators and writers.* More emphasis on graphing calculators in exercises and examples, including CAS capabilities of graphing calculators.* More problems using tabular data and more emphasis on mathematical modeling.