Chaotics

Alexander's mom keeps putting stuff in her pocket and it's driving him crazy! A young kangaroo called Alexander lives in his mom, Nancy's pocket. Alexander loves his mom, but there's one thing she does that really drives him nuts. She is always putting stuff in her pocket. Alexander tries to keep things neat, but the more he tidies, the more stuff she shoves in there. When he complains, his sister calls him a baby - it's time to leave the pouch anyway. But Alexander loves it in there - it's warm and cosy and smells of mom. Then one day, it gets really bad. Twelve bobby pins, a tube of toothpaste, a bottle of water, a packet of chewing gum, two bus tickets, some keys, a toy car and a cookbook all find their way into Nancy's pouch. And that's just for starters. Finally, Alexander's had enough. 'I can't take it any more!' he shouts. 'I'm moving out!' So Alexander moves into the room next to his sister's. They make it all cosy, with a furry blanket and shelves for all his stuff. So it's just like his mom's pouch. Almost. The penultimate spread is Alexander sleeping with all his stuff strewn around him. The final spread is Nancy clearing out her pocket with a wink. It was time for Alexander to go. This is a heartwarming tale about the connection between a son and mother and a journey towards independence.

We have entered into an entirely new era, an age of increasingly frequent and intense periods of turbulence in the global economy. Unlike past recessions, today’s crises have precipitated a need for businesses to develop a new mindset, one that takes into account intermittent periods of disturbance, allowing them to thrive while under the constant threat of chaos. Chaotics presents a revolutionary set of guidelines designed to help businesses: • detect sources of turbulence • prepare scenarios • predict resulting vulnerabilities and opportunities • develop responses to ensure long-term resilience and success • avoid risk while advancing the interests of the company • build flexibility into the balance sheet • price strategically • adjust products to meet new customer values • and more. Complete with metrics and measurements, Chaotics outlines a powerful new system for managing waves of uncertainty affecting customers, employees, and other stakeholders. In this climate of increased turbulence, no organization can survive with less.

Battle Mage or Magical Engineer?Easy choice, right?Engineer. Obviously. I'm Charisma Carter, tech genius and nerd extraordinaire.I actually used to be Charisma Silverstorm, member of one of the six elite Arcane Families, until my family shunned me when I turned 18 because my magic wasn't strong enough.However, where I lack in magic I more than make up for with the tech I develop, if I do say so myself.Apparently, I'm not the only one.From the minute I received my diploma as a magical engineer, it seems like my world has turned upside down.Now members of all six families are competing to get me to work for them.They're willing to use anything, from bribes to charm.It's not enough that the heirs to Arcane are walking sex gods, they also have a lot of money and exceptional magical skills. As our paths intertwine, I have to try to stay true to who I am, who I've always been, and not succumb to their charms. But how can a girl resist when the future she always dreamed of is right at her fingertips?

What does the 2000 U.S. presidential election have in common with selecting a textbook for a calculus course in your department? Was Ralph Nader's influence on the election of George W. Bush greater than the now-famous chads? In Chaotic Elections!, Don Saari analyzes these questions, placing them in the larger context of voting systems in general. His analysis shows that the fundamental problems with the 2000 presidential election are not with the courts, recounts, or defective ballots, but are caused by the very way Americans vote for president. This expository book shows how mathematics can help to identify and characterize a disturbingly large number of paradoxical situations that result from the choice of a voting procedure. Moreover, rather than being able to dismiss them as anomalies, the likelihood of a dubious election result is surprisingly large. These consequences indicate that election outcomes--whether for president, the site of the next Olympics, the chair of a university department, or a prize winner--can differ from what the voters really wanted. They show that by using an inadequate voting procedure, we can, inadvertently, choose badly. To add to the difficulties, it turns out that the mathematical structures of voting admit several strategic opportunities, which are described. Finally, mathematics also helps identify positive results: By using mathematical symmetries, we can identify what the phrase ``what the voters really want'' might mean and obtain a unique voting method that satisfies these conditions. Saari's book should be required reading for anyone who wants to understand not only what happened in the presidential election of 2000, but also how we can avoid similar problems from appearing anytime any group is making a choice using a voting procedure. Reading this book requires little more than high school mathematics and an interest in how the apparently simple situation of voting can lead to surprising paradoxes.

Chaotic Signals in Digital Communications combines fundamental background knowledge with state-of-the-art methods for using chaotic signals and systems in digital communications. The book builds a bridge between theoretical works and practical implementation to help researchers attain consistent performance in realistic environments. It shows the possible shortcomings of the chaos-based communication systems proposed in the literature, particularly when they are subjected to non-ideal conditions. It also presents a toolbox of techniques for researchers working to actually implement such systems. A Combination of Tutorials and In-Depth, Cutting-Edge Research Featuring contributions by active leading researchers, the book begins with an introduction to communication theory, dynamical systems, and chaotic communications suitable for those new to the field. This lays a solid foundation for the more applied chapters that follow. A Toolbox of Techniques—Including New Ways to Tackle Channel Imperfections The book covers typical chaos communication methods, namely chaotic masking, chaotic modulation, chaotic shift key, and symbolic message bearing, as well as bidirectional communication and secure communication. It also presents novel methodologies to deal with communication channel imperfections. These tackle band-limited channel chaos communication, radio channels with fading, and the resistance of a special chaotic signal to multipath propagations. In addition, the book addresses topics related to engineering applications, such as optical communications, chaotic matched filters and circuit implementations, and microwave frequency-modulated differential chaos shift keying (FM-DCSK) systems. Insights for Both Theoretical and Experimental Researchers Combining theory and practice, this book offers a unique perspective on chaotic communication in the context of non-ideal conditions. Written for theoretical and experimental researchers, it tackles the practical issues faced in implementing chaos-based signals and systems in digital communications applications.

An authoritative guide to up-to-date research results on chaotic signal processing aimed at researchers and graduate students in chaos, applied nonlinear dynamics, signal processing and radar communications. This book examines the applications of chaotic signal processing to radar, communications, system identification and computing.

At the code level, discrete-time chaotic systems can be used to generate spreading codes for DS-SS systems. At the signal level, continuous-time chaotic systems can be used to generate wideband carriers for digital modulation schemes. The potential of chaos engineering is now recognized worldwide, with research groups actively pursuing the exploitation of chaotic phenomena in cryptography, spread spectrum communications, electromagnetic interference reduction, and many other applications. Although some noteworthy results have already been achieved, until now, the field has lacked both a systematic treatment of these developments and a careful, quantitative comparison of chaos-based and conventional techniques. Chaotic Electronics in Telecommunications fills both of those needs. It addresses the use of chaos in digital communications applications, from the coding level to circuit design. Each chapter offers a formal exposition of the theoretical and engineering tools needed to apply chaos, followed by discussion of the algorithms and circuits needed to apply the theory to real-world communications systems.

This book is primarily concerned with the computational aspects of predictability of dynamical systems - in particular those where observations, modeling and computation are strongly interdependent. Unlike with physical systems under control in laboratories, in astronomy it is uncommon to have the possibility of altering the key parameters of the studied objects. Therefore, the numerical simulations offer an essential tool for analysing these systems, and their reliability is of ever-increasing interest and importance. In this interdisciplinary scenario, the underlying physics provide the simulated models, nonlinear dynamics provides their chaoticity and instability properties, and the computer sciences provide the actual numerical implementation. This book introduces and explores precisely this link between the models and their predictability characterization based on concepts derived from the field of nonlinear dynamics, with a focus on the strong sensitivity to initial conditions and the use of Lyapunov exponents to characterize this sensitivity. This method is illustrated using several well-known continuous dynamical systems, such as the Contopoulos, Hénon-Heiles and Rössler systems. This second edition revises and significantly enlarges the material of the first edition by providing new entry points for discussing new predictability issues on a variety of areas such as machine decision-making, partial differential equations or the analysis of attractors and basins. Finally, the parts of the book devoted to the application of these ideas to astronomy have been greatly enlarged, by first presenting some basics aspects of predictability in astronomy and then by expanding these ideas to a detailed analysis of a galactic potential.