This book includes keynote invited papers from the Third International Crop Science Congress held in Hamburg, Germany, in August 2000. All papers have been prepared within strict editorial guidelines to ensure that the work is a balanced review text that provides an overview of the major issues confronting crop science today and in the future. It represents a suitable advanced textbook for students, as well as offering research workers concise overviews of topics adjacent to their areas of research. Contributors include leading authorities from Europe, North and South America, Africa, Asia and Australia.

The goal of this book is to explain elementary programming concepts such as loops, abstractions, composition, and conditionals to novices of all ages. It teaches the core programming concepts based on simple problems, involving the manipulation of robots or "turtles" as frequently seen in school learning environments. The ideal reader wants to have fun programming. And the reader does not have to be fluent in any programming language before they pick up this book.
The chapters of this book are relatively small. The idea is that each chapter can be turned into a one or two hour lab session. This book creates a path to teach object-oriented programming and promote the encapsulation of data, but most readers will simply appreciate the delightful sequence of fun and easy-to-do exercises with a robot/turtle.

The smart way to learn the latest version of Microsoft Windowsone step at a time! Work at your own pace through the easy numbered steps, practice files on CD, helpful hints, and troubleshooting help to master the fundamentals of working with Windows Vista, including how to navigate the new user interface and how to use the new search features for finding anything on your desktop. You will learn how to manage files and folders to simplify your work, easily add or remove programs, hook up printers and other devices, and set up your Internet connection, email, and instant messaging. You will also discover how to use security-enhanced features to help protect your PC, as well as how to share your computer while still helping keep personal settings and files private.

Students and professionals alike have long felt the need of a modern source of practical advice on the use of optical tools in scientific research. Walter T. Welford's Useful Optics meets this need.

Welford offers a succinct review of principles basic to the construction and use of optics in physics. His lucid explanations and clear illustrations will particularly help those whose interests lie in other areas but who nevertheless must understand enough about optics to create the experimental apparatus necessary to their research. Consistently emphasizing applications and practical points of design, Welford covers a host of topics: mirrors and prisms, optical materials, aberration, the limits of image formation and resolution, illumination for image-forming systems, laser beams, interference and interferometry, detectors and light sources, holography, and more. The final chapter deals with putting together an experimental optics system.

* Updated and revised with eighty percent new material, this book is 100 percent of what readers need to upgrade, fix, or troubleshoot PCs
* Sixty-five percent of U.S. households own a PC; this book caters to the do-it-yourselfers in these households, both novices and tech hobbyists alike, who are looking for an approachable reference
* A one-stop reference for topics such as video, CD, and DVD; multimedia; storage; communications (network and Internet); peripherals; and integrating with laptops and handhelds
* Concludes with a step-by-step tutorial on building an "extreme" machine that can handle the most demanding multimedia or gaming applications
* Written by Marcia and Barry Press, authors of PC Toys (076454229X)

* The heart of the book provides the complete set of models that will support most of an organization's core business functions, including universal meta models for enterprise-wide systems, business meta data and data stewardship, portfolio management, business rules, and XML, messaging, and transactions
* Developers can directly adapt these models to their own businesses, saving countless hours of development time
* Building effective meta data repositories is complicated and time-consuming, and few IT departments have the necessary expertise to do it right-which is why this book is sure to find a ready audience
* Begins with a quick overview of the Meta Data Repository Environment and the business uses of meta data, then goes on to describe the technical architecture followed by the detailed models

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The essays in this book are based on researches the author has undertaken on a wide range of topics, some using equipment no more elaborate than what one can find in an ordinary kitchen, others making elegant use of sophisticated experimental apparatus. Presenting a personal odyssey in physics, Silverman investigates processes for which no visualizable mechanism can be given, or that seem to violate fundamental physical laws (but do not), or that appear to be well understood but turn out to be subtly devious. Written in an engagingly personal style, the essays will be of interest to students of physics and related disciplines as well as professional physicists. Though they deal with subtle concepts, the discussions use little mathematics, and anyone with a little college physics will be able to read the book with pleasure.Silverman's researches deal with in quantum mechanics, atomic and nuclear physics, electromagnetism and optics, gravity, thermodynamics, and the physics of fluids, and these essays address .such questions as: How does one know that atomic electrons move? Would an "anti-atom" fall upward? How is it possible for randomly emitted particles to arrive at a detector preferentially in pairs? Can one influence electrons in London by not watching them in New York? Can a particle be influenced by a magnetic field through which it does not pass? A basketball is not changed by turning it once around its axis, but what about an electron? Can more light reflect from a surface than is incident upon it? "A Universe of Atoms" is the second edition of Silverman's "And Yet It Moves"; each essay in the earlier collection has been revised and updated, and some new essays on the uncommon physics of common objects have been added Table of Contents: Preface Introduction: The Fire Within 1 Ch. 1 The Wirbelrohr's Roar 7 Ch. 2 Musical Bottles, Flying Balloons, and Hot Stoves: The Uncommon Physics of Common Things 30 Ch. 3 The Unimaginably Strange Behavior of Free Electrons 63 Ch. 4 Quantum Beats and Giant Atoms 127 Ch. 5 And Yet It Moves: Exotic Atoms and the Invariance of Charge 181 Ch. 6 Reflections on Light 203 Ch. 7 Two Worlds, Large and Small: Earth and Atom 245 Ch. 8 Computers, Coins, and Quanta: Unexpected Outcomes of Random Events 279 Ch. 9 A Universe of Atoms: Symmetry, Unity, Gravity, and the Problem of "Missing Mass" 325 Ch. 10 Science and Wonder 386 Selected Papers by the Author 396 About the Author 409 Index 411

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