The growth of the administrative state and legislative gridlock has placed the White House at the center of environmental policymaking. Every recent president has continued the trend of relying upon administrative tools and unilateral actions to either advance or roll back environmental protection policies. From natural resources to climate change and pollution control, presidents have more been willing to test the limits of their authority, and the role of Congress has been one of reacting to presidential initiatives. In The Administrative Presidency and the Environment: Policy Leadership and Retrenchment from Clinton to Trump, David M. Shafie draws upon staff communications, speeches and other primary sources. Key features include detailed case studies in public land management, water quality, toxics, and climate policy, with particular attention to the role of science in decisionmaking. Finally, he identifies the techniques from previous administrations that made Trump's administrative presidency possible. Shafie's combination of qualitative analysis and topical case studies offers advanced undergraduate students and researchers alike important insights for understanding the interactions between environmental groups and the executive branch as well as implications for future policymaking.

Dr. Hamid Shafie's "Clinical and Laboratory Manual" "of Implant Overdentures" is a ground-breaking guide to this popular and effective treatment modality, which is increasingly seen as the standard of care for the fully edentulous patient. This highly practical step-by-step handbook provides the dentist and laboratory technician with essential instruction and sound clinical support, demystifying this complex subject through systematic evaluation of the available attachment systems to produce treatment plans to best suit the patient's needs.

After sweeping environmental legislation passed in the 1970s and 1980s, the 1990s ushered in an era when new legislation and reforms to existing laws were consistently caught up in a gridlock. In response, environmental groups became more specialized and professional, learning how to effect policy change through the courts, states, and federal agencies rather than through grassroots movements. Without a significantly mobilized public and with a generally uncooperative Congress, presidents since the 1990s have been forced to step into a new role of increasing presidential dominance over environmental policies. Rather than working with Congress, presidents instead have employed unilateral actions and administrative strategies to further their environmental goals. Presidential Administration and the Environment offers a detailed examination of the strategies and tools used by U.S. presidents. Using primary sources from presidential libraries such as speeches and staff communications, David M. Shafie analyzes how presidents such as Bill Clinton and George W. Bush have used alternative executive approaches to pass environmental policies. From there, Shafie presents case studies in land management, water policy, toxics, and climate change. He analyzes the role that executive leadership has played in passing policies within these four areas, explains how this role has changed over time, and concludes by investigating how Obama's policies compare thus far with those of his predecessors. Shafie's combination of qualitative content analysis and topical case studies offers scholars and researchers alike important insights for understanding the interactions between environmental groups and the executive branch and the implications for future policymaking in the United States.

After sweeping environmental legislation passed in the 1970s and 1980s, the 1990s ushered in an era when new legislation and reforms to existing laws were consistently caught up in a gridlock. In response, environmental groups became more specialized and professional, learning how to effect policy change through the courts, states, and federal agencies rather than through grassroots movements. Without a significantly mobilized public and with a generally uncooperative Congress, presidents since the 1990s have been forced to step into a new role of increasing presidential dominance over environmental policies. Rather than working with Congress, presidents instead have employed unilateral actions and administrative strategies to further their environmental goals. Presidential Administration and the Environment offers a detailed examination of the strategies and tools used by U.S. presidents. Using primary sources from presidential libraries such as speeches and staff communications, David M. Shafie analyzes how presidents such as Bill Clinton and George W. Bush have used alternative executive approaches to pass environmental policies. From there, Shafie presents case studies in land management, water policy, toxics, and climate change. He analyzes the role that executive leadership has played in passing policies within these four areas, explains how this role has changed over time, and concludes by investigating how Obama's policies compare thus far with those of his predecessors. Shafie's combination of qualitative content analysis and topical case studies offers scholars and researchers alike important insights for understanding the interactions between environmental groups and the executive branch and the implications for future policymaking in the United States.

The growth of the administrative state and legislative gridlock has placed the White House at the center of environmental policymaking. Every recent president has continued the trend of relying upon administrative tools and unilateral actions to either advance or roll back environmental protection policies. From natural resources to climate change and pollution control, presidents have more been willing to test the limits of their authority, and the role of Congress has been one of reacting to presidential initiatives. In The Administrative Presidency and the Environment: Policy Leadership and Retrenchment from Clinton to Trump, David M. Shafie draws upon staff communications, speeches and other primary sources. Key features include detailed case studies in public land management, water quality, toxics, and climate policy, with particular attention to the role of science in decisionmaking. Finally, he identifies the techniques from previous administrations that made Trump's administrative presidency possible. Shafie's combination of qualitative analysis and topical case studies offers advanced undergraduate students and researchers alike important insights for understanding the interactions between environmental groups and the executive branch as well as implications for future policymaking.

The promise of communications in the future–
A quick overview of next-generation mobile communications

Communications technology is moving toward a major milestone. Rapid innovation, the growth of the wireless industry, the move to optical networks, and the new areas opened up by the Internet are spurring us toward explosive developments in communications technology. Drawing together the best articles from IEEE publications, Wireless Communications in the 21st Century presents the state of the art of research in the field and offers a picture of things to come in an area that is likely to transform people’s lives in significant and even radical ways.

What are the key visions of wireless communications that are driving the technology innovations to come? How are the standards evolving? What kind of constituent technologies are likely to be adopted by future systems? What are the key features of the new systems currently being introduced? In this volume, more than twenty world-renowned experts answer these and other critical questions. They provide:

• An overview of wireless standards
• A comprehensive survey of radio channel propagation
• An overview of IMT 2000 radio systems
• An overview of wireless ATM

In addition, the chapters discuss such matters as modulation and coding issues pertinent to the physical layer, spatial and temporal signal processing, and the characteristics of new packet radio systems. Providing a comprehensive review of the technological breakthroughs under way and upcoming, Wireless Communications in the 21st Century opens a window on the next generation of mobile communications.