Patrick Martin

Ex-cop William Ryan is totally fed up with our corrupt and stagnant society when Villelmus, his doppelg nger from an advanced civilisation from another universe, drops in and makes an offer he cannot refuse: join him in another realm which has evolved to the state William wishes for his own society. But there's a catch: William must be his doppelg nger's body double so that Villelmus can continue clandestine rescue missions to other worlds to correct the paths of those worthy civilisations which are headed for catastrophe. William struggles with his own ethics when he learns of these missions, but when he is thrust into new worlds his dilemma is shifted from mere contemplation to facing reality. Shifter: Inversion, set in a sci-fi backdrop and replete with humour, action, and intrigue is the first in the Shifter series exploring the ethical dilemma of whether it is wise to interfere with the evolution of other societies, and how much a person can change given unusual circumstances.

Full of precise timing, misdirection, feigned and real clumsiness, Patrick Martin's poetry sets you on a byzantine course to arrive someplace very much like the place you left, but slightly adrift.

Cryptographic access control (CAC) is an approach to securing data by encrypting it with a key, so that only the users in possession of the correct key are able to decrypt the data and/or perform further encryptions. Applications of cryptographic access control will benefit companies, governments and the military where structured access to information is essential. The purpose of this book is to highlight the need for adaptability in cryptographic access control schemes that are geared for dynamic environments, such as the Internet. Adaptive Cryptographic Access Control presents the challenges of designing hierarchical cryptographic key management algorithms to implement Adaptive Access Control in dynamic environments and suggest solutions that will overcome these challenges. Adaptive Cryptographic Access Control is a cutting-edge book focusing specifically on this topic in relation to security and cryptographic access control. Both the theoretical and practical aspects and approaches of cryptographic access control are introduced in this book. Case studies and examples are provided throughout this book.

Cryptographic access control (CAC) is an approach to securing data by encrypting it with a key, so that only the users in possession of the correct key are able to decrypt the data and/or perform further encryptions. Applications of cryptographic access control will benefit companies, governments and the military where structured access to information is essential. The purpose of this book is to highlight the need for adaptability in cryptographic access control schemes that are geared for dynamic environments, such as the Internet. Adaptive Cryptographic Access Control presents the challenges of designing hierarchical cryptographic key management algorithms to implement Adaptive Access Control in dynamic environments and suggest solutions that will overcome these challenges. Adaptive Cryptographic Access Control is a cutting-edge book focusing specifically on this topic in relation to security and cryptographic access control. Both the theoretical and practical aspects and approaches of cryptographic access control are introduced in this book. Case studies and examples are provided throughout this book.

Sitka spruce, the largest of the world's spruces, is animportant component of British Columbia's coastal forests. Itsecology gives it a special place in the sustainable management of theprovince's forests. However, in west coast forestry it is poorlyknown in comparison with its main coniferous companions -- Douglas-fir,western redcedar, and western hemlock. As an important internationalforestry resource, it is crucial that Sitka spruce -- its ecology andthe ecosystems in which it occurs -- be clearly understood by those whoare involved with its management. This book is the most recent major work on the ecology andmanagement of Sitka spruce. The authors describe how this fascinatingtree reproduces, grows, and functions in its natural geographic range.They discuss both the ecology of Sitka spruce and silviculturalquestions such as original plantation spacing, juvenile spacing, andfertilization to accelerate the harvestability of second-growth coastalspruce stands. Sitka spruce derives its importance not only from its prominence asan international transportable genetic resource but also from its rolein riparian systems and its biodiversity values. Here in NorthAmerica's west coast rainforest, this magnificent tree illustratesthe ecology of complex forest ecosystems and their cultural,wilderness, historic, and economic values.