Addressed to all readers with an interest in fractals, hyperspaces, fixed-point theory, tilings and nonstandard analysis, this book presents its subject in an original and accessible way complete with many figures. The first part of the book develops certain hyperspace theory concerning the Hausdorff metric and the Vietoris topology, as a foundation for what follows on self-similarity and fractality. A major feature is that nonstandard analysis is used to obtain new proofs of some known results much more slickly than before. The theory of J.E. Hutchinson's invariant sets (sets composed of smaller images of themselves) is developed, with a study of when such a set is tiled by its images and a classification of many invariant sets as either regular or residual. The last and most original part of the book introduces the notion of a "view" as part of a framework for studying the structure of sets within a given space. This leads to new, elegant concepts (defined purely topologically) of self-similarity and fractality: in particular, the author shows that many invariant sets are "visually fractal", i.e. have infinite detail in a certain sense. These ideas have considerable scope for further development, and a list of problems and lines of research is included.
Explains the basic principles of how computers work and how they are used to perform a variety of tasks, from drawing pictures for television to controlling robots in factories to helping the handicapped communicate.
Answers to the most current questions on the computer revolution are given in text and illustrations that explain the enormous potential of computers and their basic functions.
Stamped on products from coffee to handicrafts, the term “fair trade” has quickly become one of today’s most seductive consumer buzzwords. Purportedly created through fair labor practices, or in ways that are environmentally sustainable, fair-trade products give buyers peace of mind in knowing that, in theory, how they shop can help make the world a better place. Buying into Fair Trade turns the spotlight onto this growing trend, exploring how fair-trade shoppers think about their own altruism within an increasingly global economy. Using over 100 interviews with fair-trade consumers, national leaders of the movement, coffee farmers, and artisans, author Keith Brown describes both the strategies that consumers use to confront the moral contradictions involved in trying to shop ethically and the ways shopkeepers and suppliers reconcile their need to do good with the ever-present need to turn a profit. Brown also provides a how-to chapter that outlines strategies readers can use to appear altruistic, highlighting the ways that socially responsible markets have been detached from issues of morality. A fascinating account of how consumers first learn about, understand, and sometimes ignore the ethical implications of shopping, Buying into Fair Trade sheds new light on the potential for the fair trade market to reshape the world into a more socially-just place. Keith Brown is Assistant Professor of Sociology at Saint Joseph’s University in Philadelphia, Pennsylvania.
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