The world is changing. Human population is surging towards 10 billion, food, water, climate and energy security are all at risk. Nitrogen could be our life raft in this global 'perfect storm'. Get it right and it can help to feed billions, fuel our cars and put a dent in global warming. Get it wrong and it will make things a whole lot worse.

This book examines experiences and implications of 'against-the-grain' school choices, where white middle class families choose ordinary and 'low performing' secondary schools for their children. It offers a unique view of identity formation, taking in matters like family history, locality and whiteness.

The world is changing. Human population is surging towards 10 billion, food, water, climate and energy security are all at risk. Nitrogen could be our life raft in this global 'perfect storm'. Get it right and it can help to feed billions, fuel our cars and put a dent in global warming. Get it wrong and it will make things a whole lot worse.

This text examines experiences and implications of 'against-the-grain' school choices, where white middle class families choose ordinary and 'low performing' secondary schools for their children. It offers a unique view of identity formation, taking in matters like family history, locality and whiteness.

This book examines experiences and implications of 'against-the-grain' school choices, where white middle class families choose ordinary and 'low performing' secondary schools for their children. It offers a unique view of identity formation, taking in matters like family history, locality and whiteness.

Packed with provocative case studies, calculations and lifestyle comparisons, this entertaining and authoritative book makes the complexities of climatology understandable and challenges readers to rethink their notions of 'doing their bit'. The paperback edition features a new preface from Mark Lynas, author of High Tide: News From a Warming World

Teaches digital signal processing concepts via hands-on examples

The OMAP-L138 eXperimenter is the latest inexpensive DSP development system to be adopted by the Texas Instruments University Program. The OMAP-L138 processor contains both ARM and DSP cores and is aimed at portable and mobile multimedia applications. This book concentrates on the demonstration of real-time DSP algorithms implemented on its C6748 DSP core.

"Digital Signal Processing and Applications with the OMAP-L138 eXperimenter" provides an extensive and comprehensive set of program examples to aid instructors in teaching DSP in a laboratory using audio frequency signals--making it an ideal text for DSP courses at senior undergraduate and postgraduate levels.

Subjects covered include polling-based, interrupt-based, and DMA-based I/O methods, and how real-time programs may be run using the board support library (BSL), the DSP/BIOS real-time operating system, or the DSP/BIOS Platform Support Package.

Chapters include:

Analog input and output with the OMAP-L138 eXperimenter

Finite impulse response filters

Infinite impulse response filters

Fast Fourier transform

Adaptive filters

DSP/BIOS and platform support package

Each chapter begins with a review of background theory and then presents a number of real-time program examples to reinforce understanding of that theory and to demonstrate the use of the OMAP-L138 eXperimenter and Texas Instruments Code Composer Studio integrated development environment.

Features inexpensive ARM(R) Cortex(R)-M4 microcontroller development systems available from Texas Instruments and STMicroelectronics. This book presents a hands-on approach to teaching Digital Signal Processing (DSP) with real-time examples using the ARM(R) Cortex(R)-M4 32-bit microprocessor. Real-time examples using analog input and output signals are provided, giving visible (using an oscilloscope) and audible (using a speaker or headphones) results. Signal generators and/or audio sources, e.g. iPods, can be used to provide experimental input signals. The text also covers the fundamental concepts of digital signal processing such as analog-to-digital and digital-to-analog conversion, FIR and IIR filtering, Fourier transforms, and adaptive filtering. Digital Signal Processing Using the ARM(R) Cortex(R)-M4: * Uses a large number of simple example programs illustrating DSP concepts in real-time, in an electrical engineering laboratory setting * Includes examples for both STM32F407 Discovery and the TM4C123 Launchpad, using Keil MDK-ARM, on a companion website * Example programs for the TM4C123 Launchpad using Code Composer Studio version 6 available on companion website Digital Signal Processing Using the ARM(R) Cortex(R)-M4 serves as a teaching aid for university professors wishing to teach DSP using laboratory experiments, and for students or engineers wishing to study DSP using the inexpensive ARM(R) Cortex(R)-M4. Donald Reay is a lecturer in electrical engineering at Heriot-Watt University in Edinburgh, Scotland. He has also taught hands-on DSP, on a number of occasions, as a visiting lecturer at Zhejiang University in Hangzhou, China. He co-authored Digital Signal Processing and Applications with the TMS320C6713 and TMS320C6416 DSK, Second Edition (Wiley 2008) with Rulph Chassaing, and is the author of Digital Signal Processing and Applications with the OMAP-L138 eXperimenter (Wiley 2012).