It has sold 30,000 copies in each edition and will continue to reach a huge academic audience.In this renowned book, Everett M. Rogers, professor and chair of the Department of Communication & Journalism at the University of New Mexico, explains how new ideas spread via communication channels over time. Such innovations are initially perceived as uncertain and even risky. To overcome this uncertainty, most people seek out others like themselves who have already adopted the new idea. Thus the diffusion process consists of a few individuals who first adopt an innovation, then spread the word among their circle of acquaintances--a process which typically takes months or years. But there are exceptions: use of the Internet in the 1990s, for example, may have spread more rapidly than any other innovation in the history of humankind. Furthermore, the Internet is changing the very nature of diffusion by decreasing the importance of physical distance between people. The fifth edition addresses the spread of the Internet, and how it has transformed the way human beings communicate and adopt new ideas.

    The epidemics of obesity, heart disease, and diabetes are not tied to the overabundance of fat or carbs or any other specific nutrient. Instead, we have been led astray by the growing divide between flavor - the tastes we crave - and the underlying nutrition. Since the late 1940s, we have been slowly leeching flavor out of the food we grow. Those perfectly round, red tomatoes that grace our supermarket aisles today are mostly water, and the big breasted chickens on our dinner plates grow three times faster than they used to, leaving them dry and tasteless. Simultaneously, we have taken great leaps forward in technology, allowing us to produce in the lab the very flavors that are being lost on the farm. Thanks to this largely invisible epidemic, seemingly healthy food is becoming more like junk food: highly craveable but nutritionally empty. We have unknowingly interfered with an ancient chemical language - flavor - that evolved to guide our nutrition, not destroy it.With in-depth historical and scientific research, The Dorito Effect casts the food crisis in a fascinating new light, weaving an enthralling tale of how we got to this point and where we are headed. We've been telling ourselves that our addiction to flavor is the problem, but it is actually the solution. We are on the cusp of a new revolution in agriculture that will allow us to eat healthier and live longer by enjoying flavor the way nature intended.

    . . when it comes to the legacy of this country's war on drugs, we should all share his outrage." --The New York Times Book Review From one of the world's foremost experts on the subject, a powerful argument that the greatest damage from drugs flows from their being illegal, and a hopeful reckoning with the possibility of their use as part of a responsible and happy lifeDr. Carl L. Hart, Ziff Professor at Columbia University and former chair of the Department of Psychology, is one of the world's preeminent experts on the effects of so-called recreational drugs on the human mind and body. Dr. Hart is open about the fact that he uses drugs himself, in a happy balance with the rest of his full and productive life as a colleague, husband, father, and friend. In Drug Use for Grown-Ups, he draws on decades of research and his own personal experience to argue definitively that the criminalization and demonization of drug use--not drugs themselves--have been a tremendous scourge on America, not least in reinforcing this country's enduring structural racism.Dr. Hart did not always have this view. He came of age in one of Miami's most troubled neighborhoods at a time when many ills were being laid at the door of crack cocaine. His initial work as a researcher was aimed at proving that drug use caused bad outcomes. But one problem kept cropping up: the evidence from his research did not support his hypothesis. From inside the massively well-funded research arm of the American war on drugs, he saw how the facts did not support the ideology. The truth was dismissed and distorted in order to keep fear and outrage stoked, the funds rolling in, and Black and brown bodies behind bars.Drug Use for Grown-Ups will be controversial, to be sure: the propaganda war, Dr. Hart argues, has been tremendously effective. Imagine if the only subject of any discussion about driving automobiles was fatal car crashes. Drug Use for Grown-Ups offers a radically different vision: when used responsibly, drugs can enrich and enhance our lives. We have a long way to go, but the vital conversation this book will generate is an extraordinarily important step.

    What he has discovered is intriguing: When it comes to the most essential components of our personality—from friendliness and flexibility to openness and originality—the things we own and the way we arrange them can say more about who we are than even our most intimate conversations.Packed with original research and a wealth of fascinating stories, Snoop is a captivating guide to our not-so-secret selves, and reveals how intensely connected we are to the places in which we live and work.

    Amazing new tools, materials and skills turn us all into makers. Using technology to make, repair or customize the things we need brings engineering, design and computer science to the masses. Fortunately for educators, this maker movement overlaps with the natural inclinations of children and the power of learning by doing. The active learner is at the center of the learning process, amplifying the best traditions of progressive education. This book helps educators bring the exciting opportunities of the maker movement to every classroom. Children are natural tinkerersTheir seminal learning experiences come through direct experience with materials. Digital fabrication, such as 3D printing and physical computing, including Arduino, MaKey MaKey and Raspberry Pi, expands a child’s toy and toolboxes with new ways to make things and new things to make. For the first time ever, childhood inventions may be printed, programmed or imbued with interactivity. Recycled materials can be brought back to life. While school traditionally separates art and science, theory and practice, such divisions are artificial. The real world just doesn’t work that way! Architects are artists. Craftsmen deal in aesthetics, tradition and mathematical precision. Video game developers rely on computer science. Engineering and industrial design are inseparable. The finest scientists are often accomplished musicians. The maker community brings children, hobbyists and professionals together in a glorious celebration of personal expression with a modern flare. When 3-D printing, precision cutting, microcomputer control, robotics and computer programming become integral to the art studio, auto shop or physics lab, every student needs access to tools, knowledge and problem solving skills. The maker movement not only blurs the artificial boundaries between subject areas, it erases distinctions between art and science while most importantly obliterating the crippling practice of tracking students in academic pursuits or vocational training. There are now multiple pathways to learning what we have always taught and things to do that were unimaginable just a few years ago. Making for every classroom budgetEven if you don’t have access to expensive (but increasingly affordable) hardware, every classroom can become a makerspace where kids and teachers learn together through direct experience with an assortment of high and low-tech materials. The potential range, breadth, power, complexity and beauty of projects has never been greater thanks to the amazing new tools, materials, ingenuity and playfulness you will encounter in this book. In this practical guide, Sylvia Martinez and Gary Stager provide K-12 educators with the how, why, and cool stuff that supports classroom making.

    . . a lively, engaging masterpiece."--Erik Brynjolfsson, bestselling co-author of The Second Machine AgeMIT professor Sinan Aral isn't only one of the world's leading experts on social media--he's also an entrepreneur and investor, giving him an unparalleled 360-degree view of the technology's great promise as well as its outsize capacity to damage our politics, our economy, and even our personal health.Drawing on two decades of his own research and business experience, Aral goes under the hood of the biggest, most powerful social networks to tackle the critical question of just how much social media actually shapes our choices, for better or worse. Aral shows how the tech behind social media offers the same set of behavior-influencing levers to both Russian hackers and brand marketers--to everyone who hopes to change the way we think and act--which is why its consequences affect everything from elections to business, dating to health. Along the way, he covers a wide array of topics, including how network effects fuel Twitter's and Facebook's massive growth to the neuroscience of how social media affects our brains, the real consequences of fake news, the power of social ratings, and the impact of social media on our kids.In mapping out strategies for being more thoughtful consumers of social media, The Hype Machine offers the definitive guide to understanding and harnessing for good the technology that has redefined our world overnight.

    With this book Rachel Simmons elevated the nation's consciousness and has shown millions of girls, parents, counselors, and teachers how to deal with this devastating problem. Poised to reach a wider audience in paperback, including the teenagers who are its subject, Odd Girl Out puts the spotlight on this issue, using real-life examples from both the perspective of the victim and of the bully.

    Hip-hop, rave, graffiti, and gaming took it to another level, and now modern technology has made the ideas and innovations of youth culture increasingly intimate and increasingly global at the same time.In "The Pirate's Dilemma," "VICE" magazine's Matt Mason -- poised to become the Malcolm Gladwell of the iPod Generation -- brings the exuberance of a passionate music fan and the technological savvy of an IT wizard to the task of sorting through the changes brought about by the interface of pop culture and innovation. He charts the rise of various youth movements -- from pirate radio to remix culture -- and tracks their ripple effect throughout larger society. Mason brings a passion and a breadth of intelligence to questions such as the following: How did a male model who messed with disco records in the 1970s influence the way Boeing designs airplanes? Who was the nun who invented dance music, and how is her influence undermining capitalism as we know it? Did three high school kids who remixed Nazis into Smurfs in the 1980s change the future of the video game industry? Can hip-hop really bring about world peace? Each chapter crystallizes the idea behind one of these fringe movements and shows how it combined with technology to subvert old hierarchies and empower the individual.With great wit and insight -- and a cast of characters that includes such icons as the Ramones, Andy Warhol, Madonna, Russell Simmons, and 50 Cent -- Mason uncovers the trends that have transformed countercultural scenes into burgeoning global industries and movements, ultimately changing our way of life.