This book is structured in a practical, example-driven, manner. The use of VHDL for constructing logic synthesisers is one of the aims of the book; the second is the application of the tools to the design process. Worked examples, questions and answers are provided together with do and don'ts of good practice. An appendix on logic design the source code are available free of charge over the Internet.

2) contain introductory material regarding ge Historical Background ology and petroleum exploration techniques Only a few decades ago knowledge of the off which we trust will help the non-specialist, in shore geology west of Britain and Ireland was conjunction with some of the more general ref limited to a scattering of seabed samples. Dur follow the main erences cited in the text, to ing the last twenty five years, however, the parts of the chapters and the text figures. This tempo of geological investigation has gradu first chapter also contains a small amount of ally increased. The framework and outline ge introductory material concerning the opening ology of the western seaboard is now known, of the North Atlantic Ocean which should help although a great deal, some of it fundamental to lead into the more detailed account which in nature, still remains to be elucidated. Sev follows, and also help in the understanding of eral commercial and sub-commercial hydrocar some of the points made in later chapters. bon discoveries have been made and are being Credit must go to university departments, produced, . developed or investigated. A sus and later the Institute of Geological Sciences, tained phase of exploration drilling is antici for their parts in initially establishing the pated in the next five years in the Western existence of, and geological outlines for, the Approaches - Celtic Sea area and to the west offshore basins along the western seaboard of Britain and Ireland."

2) contain introductory material regarding ge Historical Background ology and petroleum exploration techniques Only a few decades ago knowledge of the off which we trust will help the non-specialist, in shore geology west of Britain and Ireland was conjunction with some of the more general ref limited to a scattering of seabed samples. Dur follow the main erences cited in the text, to ing the last twenty five years, however, the parts of the chapters and the text figures. This tempo of geological investigation has gradu first chapter also contains a small amount of ally increased. The framework and outline ge introductory material concerning the opening ology of the western seaboard is now known, of the North Atlantic Ocean which should help although a great deal, some of it fundamental to lead into the more detailed account which in nature, still remains to be elucidated. Sev follows, and also help in the understanding of eral commercial and sub-commercial hydrocar some of the points made in later chapters. bon discoveries have been made and are being Credit must go to university departments, produced, . developed or investigated. A sus and later the Institute of Geological Sciences, tained phase of exploration drilling is antici for their parts in initially establishing the pated in the next five years in the Western existence of, and geological outlines for, the Approaches - Celtic Sea area and to the west offshore basins along the western seaboard of Britain and Ireland."

"Digital Diversity: Youth, Equity, and Information Technology" is about youth, schools, and the use of technology. Youth are instrumental in finding novel ways to access and use technology. They are directly affected by changes such as the proliferation of computers in schools and elsewhere, and the increasingly heavy use of the Internet for both information sharing and for communication.

The contributors to this volume investigate how the resources provided by information and communication technology (ICT) are made available to different groups of young people (as defined by gender, race, rural location, Aboriginal status, street youth status) and how they do (or do not) develop facility and competence with this technology. How does access vary for these different groups of youth? Which young people develop facility with ICT? What impact has this technology had on their learning and their lives? These are among the issues examined. Youth from a wide variety of settings are included in the study, including Inuit youth in the high arctic.

Rather than mandate how youth should/could better use technology (as much of the existing literature does) the contributors focus on how youth and educators are actually using technology. By paying attention to the routine use and understandings of ICTs by youth and those teaching youth, the book highlights the current gaps in policy and practice. It challenges assumptions around the often taken-for-granted links between technology, pedagogy, and educational outcomes for youth in order to highlight a range of important equity issues.