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Cryptography and Network Security
Starting with the historical evolution of computer and communications networks and their security, the book then arrives at the main definitions of cryptography and network security. Next, the basics of information theory, how to measure information, the information associated with a certain source are also discussed. Source codes are presented, along with the concepts of information transmission, joint information, conditional entropy, mutual information and channel capacity. Computer networks are discussed, including the main protocols and network architectures, and the important TCP/IP protocol. Network security, a topic intrinsically connected to computer networks and the Internet, is presented, along with information about basic hacker attacks, alternatives to prevent attacks, data protection and secure protocols. The information theoretical aspects of cryptography are described including the hash function. An appendix includes a review of probability theory. Illustrations and graphics will help the reader understand the theory.
Communication Systems
Presents main concepts of mobile communication systems, both analog and digital Introduces concepts of probability, random variables and stochastic processes and their applications to the analysis of linear systems Includes five appendices covering Fourier series and transforms, GSM cellular systems and more
Strategic Employee Communication
Employee engagement (or a lack thereof) can often be linked to poor communication and a detachment from company goals. Companies of all sizes are looking for ways to boost communication, recognizing its impact on key business outcomes, such as productivity and profitability. This book offers fresh insights about opportunities to improve the quality of employee communications based on employees’ needs. It highlights the importance of simple, jargon-free communication that focuses on dialogue and content. High-performing organizations are more likely to think about communication from the audience perspective, rather than purely from the management perspective. The case studies offer readers a firm understanding of ways to implement and measure communication in daily practice. Effective communication requires planning and this book, with its focus on the US, Latin America, and emerging markets, will guide readers in using communication in the alignment of corporate and employee needs.
Decolonising Digital Media and Indigenisation of Participatory Epistemologies
The book provides valuable insights on decolonising the digital media landscape and the indigenisation of participatory epistemologies to continue the legacies of indigenous languages in the global South. It is one of its kind as it climaxes that the construction phase of self-determining and redefining among the global South societies is an essential step towards decolonising the digital landscape and ensuring that indigenous voices and worldviews are equally infused, represented, and privileged in the process of higher-level communication, exchanging epistemic philosophies, and knowledge expressions. The book employs an interdisciplinary approach to engage in the use of digital media as a ...
Brazilian Beach Systems
This book is about the more than 4,000 beach systems that form most of the 9000 km long Brazilian coast. It focuses on the beaches of each of the seventeen coastal states and three oceanic islands, their nature, morphodynamics and status. It is a must for anyone who wants to know more about this great coast and its beach systems. This is the first book ever written about the beach systems of Brazil, and actually the very first about the beaches of an entire country. The Brazilian coast extends from the mighty Amazon River and its muddy shores in the north to one of the world’s longest sandy beaches in the southern Rio Grande do Sul. It contains every beach type from wave to tide-dominated which range in size from small embayed beaches to long barrier beaches. The book is written by leading Brazilian academics and researchers and aims at the university level market, as well as coastal scientists, engineers and managers. Standard scientific terminology is used to describe the coast and its beaches. It is illustrated with more than 400 original figures and serves as a benchmark text on the Brazilian coast.
Global Media and National Policies
Conventional wisdom views globalization as a process that heralds the diminishing role or even 'death' of the state and the rise of transnational media and transnational consumption. Global Media and National Policies questions those assumptions and shows not only that the nation-state never left but that it is still a force to be reckoned with. With contributions that look at global developments and developments in specific parts of the world, it demonstrates how nation-states have adapted to globalization and how they still retain key policy instruments to achieve many of their policy objectives. This book argues that the phenomenon of media globalization has been overstated, and that national governments remain key players in shaping the media environment, with media corporations responding to the legal and policy frameworks they deal with at a national level.
