A significant amount of research and subsequent progress has been made in these fields. The advancement made in the understanding the underlying physics has enabled the development of several interesting applications. In these applications, semiconductors like Silicon, Gallium Arsenide exploit the charge of the electron and ferromagnetic materials make use of the spin of an electron. If these two interesting properties of semiconductors and ferromagnets can be used in conjunction, several exciting applications can be envisaged.;This new domain where such materials are being researched has been termed as Diluted Magnetic Semiconductors (DMS). The biggest challenge in the development of these materials was to put the idea into practical reality. The invention of a novel low-temperature epitaxial process in the late 1980's enabled the realization of the DMS concept and ushered a renewed interest throughout the scientific community.;Gallium Manganese Arsenide has been a test bed for understanding the underlying science behind DMS. A major challenge in the practical utility of DMS materials has been the very low Curie temperatures. The present thesis work discusses the experiments conducted at the Nanofabrication facility and the magneto-transport laboratory at the University of Arkansas. GaMnAs samples were grown using the LT-MBE process, and the samples were characterized using X-Ray analysis. A deeper insight into the magnetic and transport properties of these materials was acquired through low temperature SQUID and Hall Effect measurements.

    Once-lush grasslands, the source of precious food and water, are growing dry and bare. Rivers that used to flow year-round now run dry after the rains. Grazing animals want for food. What is causing this “desertification” of the earth, and how can we stop it? In The Grazing Revolution, biologist Allan Savory presents a solution that’s as radical as it is simple: huge herds of livestock, managed to mimic the behavior of the natural herds that once roamed grasslands centuries ago. Tracing his own story of discovery, Savory debunks common misconceptions and provides a vivid chronicle of the process by which he has seen scrubby wasteland revert to robust ecosystems. Our age-old agricultural practices are contributing greatly to the global climate change underway; Savory argues that by re-imagining these practices, we can reverse desertification and save the planet.

    Startup Weekend, the book, contains best practices, lessons learned, and empowering examples derived from the organization's experiences for individuals and small organizations to follow as they launch businesses. Each of the key beliefs outlined has been tested by Startup Weekend and has yielded powerful results.The principles described in each chapter will give any business idea a greater chance for success.Chapter topics include trust and empowerment, flexible organizational structures, the power of experiential education, action-based networking, and much more Describes consequences for startup development as entrepreneurs and founders begin doing much more, even faster Profiles successful Startup Weekend companies, including two powerful examples: Memolane, an application that captures a user's online life in one timeline making it easy for users to travel back in time and relive memories; and Foodspotting, a mobile and desktop app that allows users to find and share the foods they love Apply these simple actionable principles to launch your own startup revolution.

    The political march is back in a big way, as communities rally to build movements for environmental and social justice. But today's context calls for increasingly creative strategies to make our voices heard. Crossing the globe, Clare Press meets passionate change-makers who believe in the power of the positive. From eco warriors and zero wasters to knitting nannas, introvert craftivists to intersectional feminists, they're all up for a revolution of sorts. Are you? Join Press as she tracks the formation of a new counterculture, united by a grand purpose- to rethink how we live today to build a more sustainable tomorrow.

    An exciting journey through history. A mystery feared by the Catholic Church for centuries. Disturbing; seductive; irresistible! Book 2: The Disappearance of Anna Popov An abducted girl. An evil psychopath. A distraught mother who dares to hope. Jack Rogan never gives up. A riveting, nail-biting page-turner! Book 3: The Hidden Genes of Professor K A dream to change the future of medicine and the journey of man. Science meets ambition and greed. Inspirational; gripping; impossible to put down! Book 4: Professor K: The Final Quest The Pope; a famous Nobel laureate; the Mafia and a fanatical terrorist. Jack Rogan does it again: sleepless nights; nail-biting action; excitement!

    

    From the earliest attempts to reproduce the Hockey Stick graph, to the explosive publication of McIntyre's work and the launch of a congressional inquiry, The Hockey Stick Illusion is a remarkable tale of scientific misconduct and amateur sleuthing. It explains the complex science of this most controversial of scientific findings in layperson's language and lays bare the remarkable extent to which climatologists have been willing to break their own rules in order to defend climate science's most famous finding. Already acclaimed by experts in the field, The Hockey Stick Illusion is an indispensable guide for anyone wanting to assess the credibility of global warming science.

    Imagine if you were given clear, simple choices, small changes that could have a big impact on your life. And you could still wear leather shoes and deodorant. You'd listen, right? Well, think of Today show contributor Sloan Barnett as that friend. A mother of three, a dedicated consumer advocate, Sloan gives us a fast, simple, down-toearth primer on the ways our homes are making us sick, and what we can all do to transform them into the safe sanctuaries we want and need them to be. Sloan exposes the toxic truth behind the household products we use every day -- from laundry detergent to toothpaste to lipstick. She explains how these and other seemingly benign stuff can harm us and our children. She offers an array of alternatives, and inspires us to see that we're never helpless: Every day, we have the power to make better, smarter, safer choices. Packed with common sense and sass, product picks and practical tips, Green Goes With Everything is for everyone who wants to live a healthier life.

    His desperation, his regret, his sorrow shaped his soul as he was murdered. But the world is just; As the world he knows fades before his eyes, he finds himself reincarnated in the body of a newborn baby. He now has a second chance at life, to avoid his previous life’s tragic ending. But is the world really so kind?

    Last Stand gives us a new, unexpected lens through which to view a previously unsung hero of conservation and offers prescriptions for the future of conservation.

    Every new year is the hottest in human history, while forest, reef, ice, tundra, and species are disappearing forever. It is easy to lose all hope.Who will stop the planet from committing ecological suicide? The UN? Governments? Activists? Corporations? Engineers? Scientists? Whoever, environmental laws need to be enforceable and enforced. Step forward a fresh breed of passionately purposeful environmental lawyers. They provide new rules to legislatures, see that they are enforced, and keep us informed. They tackle big business to ensure money flows into cultural change, because money is the grammar of business just as science is the grammar of nature.At the head of this new legal army stands James Thornton, who takes governments to court, and wins. And his client is the Earth.With Client Earth, we travel from Poland to Ghana, from Alaska to China, to see how citizens can use public interest law to protect their planet. Foundations and philanthropists support the law group ClientEarth because they see, plainly and brightly, that the law is a force all parties recognize. Lawyers who take the Earth as their client are exceptional and inspirational. They give us back our hope.

    En route she discards section after section of her manuscript in the spirit of editing The Ice Shelf into a stronger, sleeker work of literature.The Ice Shelf is an electrifying allegory for the dangers of wasting love and other non-renewable resources.

    One section focused on eight incredibly subtle—and devastatingly destructive—tactics for sabotaging the decision-making processes of organizations. While the manual was written decades ago, these sabotage tactics thrive undetected in organizations today:Insist on doing everything through channels. Make speeches. Talk as frequently as possible and at great length. Refer all matters to committees. Bring up irrelevant issues as frequently as possible. Haggle over precise wordings of communications. Refer back to matters already decided upon and attempt to question the advisability of that decision. Advocate caution and urge fellow-conferees to avoid haste that might result in embarrassments or difficulties later on. Be worried about the propriety of any decision.Everyone has been faced with someone who has used these tactics, even when they have meant well. Filled with proven strategies and techniques, this brief, clever book outlines the counter-sabotage measures to detect and reduce the impact of these eight classic sabotage tactics to improve productivity, spur creativity, and engender better collegial relationships.

    It considers the diversity and biology of bees, including their peculiar sociosexual arrangements (pity the poor drone), their quirky relationships with flowers, and their startling mental abilities: What are we to make of insects that communicate through symbolic dances? The book also addresses the mysterious syndrome known as colony collapse disorder and identifies opportunities for the conservation of pollinators.Enriched with cultural sidebars and complemented by a stunning collection of images, Bees is a must-read for conservationists, gardeners, and everyone else who cares about the world around them.Published in partnership with the David Suzuki Foundation.Also available in paperback.

    What you do matters - and the science proves it. How many actions can you tick of the list in this book to help save our planet?