This book proposes that usage-based charging schemes are essential to generate the incentives necessary for efficient operation of multiservice networks. The rapid development of network technology is enabling sophisticated new services and applications which demand new charging models. The same technology provides the means to operate the right charging schemes.Some of the work done in the European collaborative project CA$hMAN (Charging and Accounting Schemes in Multiservice ATM Networks). This project combined performance and economic models of network resource usage and cutomer...

Sacred Space is an enlightening guide book for the golden age of the millennium Having suffered from the condition of M.E./C.F.S. herself and having witnessed her teenage son battle with the same symptoms, Author and Reiki healer Elizabeth Bailey, shares her unique story and shows you how to approach your personal journey of recovery in a very positive way. By adopting the many suggestions, that this book contains, you will be well on your way to coping with M.E./C.F.S., depression, anxiety, and stress. . Discover how to balance your energy levels through gentle, natural healing techniques ....

The gravitational pull of the earth and the challenge to resist it have long inspired artists. Like the Greek vases depicting Sisyphus's endless quest to push his boulder up a hill and the Whirlwind Lovers in Dante's Inferno, images that portray the defiance of gravity or submission to it permeate the artistic world. This collection explores the ways artists from antiquity to today use gravity and/or levity symbolically, metaphorically, and expressively. The 26 essays examine these opposing forces through analysis of such dualities as ascent and descent, weight and weightlessness, hope and...