'The Fundamentals of Signal Transmission' presents a discussion of the main forms of signal transmission media. Twisted pair, coaxial line, optical fibre, waveguides and freespace propagation and antennas are covered using a standard format. After a discussion of signals in general, the nature of wave propagation is examined. These fundamentals are then related to the specific transmission types. Mathematics is kept as simple as possible and is complemented by ample qualitative explanation; where necessary more detailed mathematics can be found in the appendices. Some knowledge of basic electronic circuit theory and field theory is assumed.
Written in an informal and accessible style, 'The Fundamentals of Signal Transmission' provides all undergraduate electronics engineers with a concise overview of electromagnetic signal transmission.
written in an iformal and accessible style
provides a concise overview of electromagnetic signal transmission
covers all the main types of signal transmission in one volume

Coastal basins are defined as estuaries, lagoons, and embayments. This book deals with the science of coastal basins using simple models, many of which are presented in either analytical form or Microsoft Excel or MATLAB. The book introduces simple hydrodynamics and its applications, from the use of simple box and one-dimensional models to flow over coral reefs. The book also emphasizes models as a scientific tool in our understanding of coasts, and introduces the value of the most modern flexible mesh combined wave-current models. Examples from shallow basins around the world illustrate the wonders of the scientific method and the power of simple dynamics. This book is ideal for use as an advanced textbook for graduate students and as an introduction to the topic for researchers, especially those from other fields of science needing a basic understanding of the basic ideas of the dynamics of coastal basins.

' ... will undoubtedly be welcomed by the extensive engineering community concerned with the impact of ocean waves on ships, off-shore structures, coastal protection, dikes, harbours, beaches and tidal basins.' K. Hasselmann, Director (retired) of the Max-Planck-Institut fur Meteorologie, Hamburg, and Emeritus Professor of Theoretical Geophysics, University of Hamburg 'The author, well-known for his work in wave modeling and the development of the SWAN model, provides a valuable introduction ... will be very helpful to students, as well as professionals, interested in wind-wave wave modeling. All SWAN users will want a copy.' R.A. Dalrymple, Williard & Lillian Hackerman Professor of Civil Engineering, Johns Hopkins University ' ... excellent not only as a textbook for students but also as a reference book for professionals.' Y. Goda, Executive Advisor to ECOH CORPERATION, and formerly Director-General of Port and Airport Research Institute, Japan ' ... a 'must have' for engineers and scientists interested in the ocean. ... It is an invaluable reference for students, researchers and practitioners.' I. Young, Vice-Chancellor and President of Swinburne University of Technology, Australia ' ... a great book. The author is one of the leading experts in the field of waves who has taught the subject for over 20 years - and it shows.' J. W. Kamphuis, Emeritus Professor of Civil Engineering, Queen's University, Canada ' ... highlights key concepts, unites seemingly unconnected theories, and unlocks the complexity of the sea. ... will become an important reference for students, coastal and ocean engineers, and oceanographers.' J. Smith, Editor, International Conference on Coastal Engineering, US Army Engineer Research and Development Center, USA ' ... an excellent source of information about wind-generated, ocean-surface gravity waves, especially as used in state of the art numerical wave models, in particular those that simulate waves in shallow coastal waters, such as SWAN. The book is nicely illustrated, well written, contains many references, and will be of interest to scientists and engineers.' Oceanography

Choosing Unsafe Sex focuses on the ways in which condom refusal and beliefs regarding HIV testing reflect women's hopes for their relationships and their desires to preserve status and self-esteem. Many of the inner-city women who participated in Dr. Sobo's research were seriously involved with one man, and they had heavy emotional and social investments in believing or maintaining that their partners were faithful to them.
Uninvolved women had similarly heavy investments in their abilities to identify or choose potential partners who were HIV-negative. Women did not see themselves as being at risk for HIV infection, and so they saw no need for condoms. But they did recommend that other women, whom they saw as quite likely to be involved with sexually unfaithful men, use them...

PREFACE
The catalyst for this study was a very simple observation. Thumbing through the pages of antebellum statutory codes from some of the southern states, I was surprised to find that chapters on the law of what was called "domestic relations" often included not only the headings "husband and wife," "parent and child," and "guardian and ward," but also "master and slave.'' 1 As I puzzled over the meaning of this arrangement, it struck me that southern lawmakers had organized the statutes in this fashion because they did not consider these sets of social relations as isolated categories but as intrinsically connected. If this was so, then these connections deserved a closer look. What was the impact of slavery, I wondered, on the rules and regulations governing relations between husbands and wives as well as between parents and children? What changes did the end of slavery bring about in the law of domestic relations? How did the legacy of slavery continue to shape legal attitudes toward women, children, and families after its demise?

Women in public office are often assumed to "make a difference" for women, as women?in other words, to represent their female constituents better than do their male counterparts. But is sex really an accurate predictor of a legislator's political choices and actions? In this book, Beth Reingold compares the representational activities and attitudes of male and female members of the Arizona and California state legislatures to illuminate the broader implications of the election and integration of women into public office. In the process, she challenges many of the assumptions that underlie popular expectations of women and men in politics.
Using in-depth interviews, survey responses, and legislative records, Reingold actually uncovers more similarities between female and male politicians than differences. Moreover, the stories she presents strongly suggest that rather than assuming that who our representatives are determines what they will do in office, we must acknowledge the possibility that the influence of gender on legislative behavior can be weakened, distorted, or accentuated by powerful forces within the social and political contexts of elective office.