The Tree Tracers

Building Scalable Network Services: Theory and Practice is on building scalable network services on the Internet or in a network service provider's network. The focus is on network services that are provided through the use of a set of servers. The authors present a tiered scalable network service model and evaluate various services within this architecture. The service model simplifies design tasks by implementing only the most basic functionalities at lower tiers where the need for scalability dominates functionality. The book includes a number of theoretical results that are practical and applicable to real networks, such as building network-wide measurement, monitoring services, and strategies for building better P2P networks. Various issues in scalable system design and placement algorithms for service nodes are discussed. Using existing network services as well as potentially new but useful services as examples, the authors formalize the problem of placing service nodes and provide practical solutions for them.

This book represents a new "earth systems" approach to catchments that encompasses the physical and biogeochemical interactions that control the hydrology and biogeochemistry of the system. The text provides a comprehensive treatment of the fundamentals of catchment hydrology, principles of isotope geochemistry, and the isotope variability in the hydrologic cycle -- but the main focus of the book is on case studies in isotope hydrology and isotope geochemistry that explore the applications of isotope techniques for investigating modern environmental problems. Isotope Tracers in Catchment Hydrology is the first synthesis of physical hydrology and isotope geochemistry with catchment focus, and is a valuable reference for professionals and students alike in the fields of hydrology, hydrochemistry, and environmental science. This important interdisciplinary text provides extensive guidelines for the application of isotope techniques for all investigatores facing the challenge of protecting precious water, soil, and ecological resources from the ever-increasing problems associated with population growth and environmental change, including those from urban development and agricultural land uses.

The portal connecting Earth to other worlds reopens, and Daelin Long stands ready to rescue her sister. After a winter of strenuous training, she’s prepared to battle the evil her sister warns against. Only, the rift is more unpredictable. The Mothman arrives whispering of death and transports Daelin to a land with seven moons. There, she faces a monster that can exist in two universes at the same time. Refusing to believe her fate is sealed, Daelin searches for the way home. With only her staff, her wits, and an uninformed detective, she dares to lead the fight. Otherwise, her sister and Earth don’t have a chance.

Imagine The Bourne Identity meets Gravity and you'll get Tracer, the most exciting thriller set in space you'll ever read. A huge space station orbits the Earth, holding the last of humanity. It's broken, rusted, falling apart. We've wrecked our planet, and now we have to live with the consequences: a new home that's dirty, overcrowded and inescapable. What's more, there's a madman hiding on the station. He's about to unleash chaos. And when he does, there'll be nowhere left to run. In space, every second counts. Who said nobody could hear you scream? "Fast, exhilarating and unforgettable, and once you start it you can't stop." -- Sarah Lotz, author of The Three "A stunning debut that never lets up, from the nerve-jangling beginning to the explosive end." -- James Douglas, author of The Doomsday Machine "Tracer sets a new standard for all-action SF." -- Ken MacLeod