Information Hiding: Steganography and Watermarking - Attacks and Countermeasures deals with information hiding. With the proliferation of multimedia on the Internet, information hiding addresses two areas of concern: privacy of information from surveillance (steganography) and protection of intellectual property (digital watermarking). Steganography (literally, covered writing) explores methods to hide the existence of hidden messages. These methods include invisible ink, microdot, digital signature, covert channel, and spread spectrum communication. Digital watermarks represent a commercial application of steganography. Watermarks can be used to track the copyright and ownership of electronic media. In this volume, the authors focus on techniques for hiding information in digital media. They analyze the hiding techniques to uncover their limitations. These limitations are employed to devise attacks against hidden information. The goal of these attacks is to expose the existence of a secret message or render a digital watermark unusable. In assessing these attacks, countermeasures are developed to assist in protecting digital watermarking systems. Understanding the limitations of the current methods will lead us to build more robust methods that can survive various manipulation and attacks. The more information that is placed in the public's reach on the Internet, the more owners of such information need to protect themselves from theft and false representation. Systems to analyze techniques for uncovering hidden information and recover seemingly destroyed information will be useful to law enforcement authorities in computer forensics and digital traffic analysis. Information Hiding: Steganography and Watermarking - Attacks and Countermeasures presents the authors' research contributions in three fundamental areas with respect to image-based steganography and watermarking: analysis of data hiding techniques, attacks against hidden information, and countermeasures to attacks against digital watermarks. Information Hiding: Steganography and Watermarking – Attacks and Countermeasures is suitable for a secondary text in a graduate level course, and as a reference for researchers and practitioners in industry.
Today’s high schools are increasingly based around the use of digital technologies. Students and teachers are encouraged to ‘Bring Your Own Device’, teaching takes place through ‘learning management systems’ and educators are rushing to implement innovations such as flipped classrooms, personalized learning, analytics and ‘maker’ technologies. Yet despite these developments, the core processes of school appear to have altered little over the past 50 years. As the twenty-first century progresses, concerns are growing that the basic model of ‘school’ is ‘broken’ and no longer ‘fit for purpose’. This book moves beyond the hype and examines the everyday realities of digital technology use in today’s high schools. Based on a major ethnographic study of three contrasting Australian schools, the authors lay bare the reasons underlying the inconsistent impact of digital technologies on day-to-day schooling. The book examines leadership and management of technology in schools, the changing nature of teachers’ work in the digital age, as well as student (mis)uses of technologies in and out of classrooms. In-depth case studies are presented of the adoption of personalized learning apps, social media and 3D printers. These investigations all lead to a detailed understanding of why schools make use of digital technologies in the ways that they do. Everyday Schooling in the Digital Age: High School, High Tech? offers a revealing analysis of the realities of contemporary schools and schooling – drawing on arguments and debates from various academic literatures such as policy studies, sociology of education, social studies of technology, media and communication studies. Over the course of ten wide-ranging chapters, a range of suggestions are developed as to how the full potential of digital technology might be realized within schools. Written in a detailed but accessible manner, this book offers an ambitious critique that is essential reading for anyone interested in the fast-changing nature of contemporary education.
The church today is in many places "on the nose." For many people, it stinks. It has passed its "use-by" date and should be relegated to the dustbins of history, and the sooner, the better. Nevertheless, the contributors to this volume believe that the church, in spite of its somewhat checkered history and its many present failures, remains an integral part of God's redemptive purposes being worked out in the world, and that God's call to the church is now what it has always been: to be the faithful people of God, bearing joy-filled witness to the resurrection of Jesus Christ in word, worship, and work, in its corporate life, and in the lives of each of its members. Each chapter in this book explores an aspect of what it means to be the church, both with respect to its own life, and with an eye to its presence and mission in the world.
The new branch of science which will reveal how to avoid the rush hour, overcome cancer, and find the perfect date What do traffic jams, stock market crashes, and wars have in common? They are all explained using complexity, an unsolved puzzle that many researchers believe is the key to predicting - and ultimately solving - everything from terrorist attacks and pandemic viruses right down to rush hour traffic congestion. Complexity is considered by many to be the single most important scientific development since general relativity and promises to make sense of no less than the very heart of the Universe. Using it, scientists can find order emerging from seemingly random interactions of all kinds, from something as simple as flipping coins through to more challenging problems such as predicting shopping habits, the patterns in modern jazz, and the growth of cancer tumours.
First published in 1961, Neil R. Johnson’s The Chickasaw Rancher tells the story of Montford T. Johnson and the first white settlement of Oklahoma. Abandoned by his father after his mother’s death and then left on his own following his grandmother’s passing in 1868, Johnson became the owner of a piece of land in the northern part of the Chickasaw Nation in what is now Oklahoma. The Chickasaw Rancher follows Montford T. Johnson’s family and friends for the next thirty-two years. Neil R. Johnson describes the work, the ranch parties, cattle rustling, gun fights, tornadoes, the run of 1889, the hard deaths of many along the way, and the rise, fall, and revival of the Chickasaw Nation.—Print Ed.
For James Keir Hardie, founding father of the British Labour Party, Socialism was the Christianity of his day. Keir Hardie realized that the abject poverty of his early years was economic, social, and political oppression, so he dedicated his life to fighting for justice. He found inspiration in the visions, insights, and concepts of figures from Jesus of Nazareth to Robert Burns and Karl Marx. At the heart of Keir Hardie's creed was the belief that human solidarity is sacred. What underpins this study is the understanding that labour history is religious history.
Obtain the best outcomes from the latest techniques with help from a "who's who" of pediatric orthopaedic trauma experts! This companion to Browner et al.: Skeletal Trauma, 4th Edition presents practical, focused guidance on managing traumatic musculoskeletal injuries in children and adolescents. It emphasizes the unique aspects of children's fractures in terms of epidemiology, mechanisms, management, and the challenges of treating the skeletally immature patient. State-of-the-art coverage explores growth and development, pathology, complications, child abuse, sports medicine...and almost every possible break from head to toe. A new chapter on sports-related trauma helps you to manage these increasingly prevalent injuries. And, a new, full-color page layout makes it easier to locate the answers you need quickly. Complete, absolutely current coverage of relevant anatomy and biomechanics • mechanisms of injury • diagnostic approaches • treatment options • and associated complications equip you to confidently approach every form of pediatric musculoskeletal trauma. Internationally recognized contributors include pediatric orthopaedists with trauma expertise as well as specialists in orthopaedic traumatology, providing expert guidance from the most trusted authorities in pediatric musculoskeletal trauma care. A unique emphasis on outcomes assessment in children’s fractures helps you make the most valid clinical decisions. Over 800 high-quality line drawings, diagnostic images, and full-color clinical photos show you what to look for and how to proceed. An emphasis on problem-focused clinical judgment and state-of-the art treatment options assists you in making the best use of the newest techniques. A new chapter on sports-related musculoskeletal injuries in children and adolescents helps you to manage the growing incidence of trauma resulting from recreational and team sports injuries. An all-new, more user-friendly full-color text design enables you to find answers more quickly, and more efficiently review the key steps of each operative technique.
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