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The original work presented in this thesis constitutes an important contribution to modern Cosmic Ray (CR) physics, and comes during one of the most exciting periods of this field. The first part introduces a new numerical code (DRAGON) to model the CR propagation in our Galaxy. The code is then used to perform a combined analysis of CR data, making it possible to determine their propagation properties with unprecedented accuracy. The second part is dedicated to a theoretical interpretation of the recent crucial experimental results on cosmic electron and positron spectra (PAMELA, Fermi-LAT experiments). Using the tools developed in the first part of the thesis, the author convincingly argues for the existence of a new spectral component, which could arise either from local astrophysical sources, such as pulsars, or from Dark Matter annihilation or decay. This thesis is a highly advanced work; the methods, analysis and results are clearly and carefully presented. This work is set to become an important reference document for any future work in this area.
Drawing out her mother's childhood memories of life in southern Italy at the dawn of the twentieth century, Mary Melfi takes an unconventional approach to autobiographical writing. Italy Revisited serves as a double memoir, told in dialogue between a mother and a daughter. The conversation takes the reader to a medieval town high up in the mountains where time is told by the shadow the sun casts, where wheat and olive oil are the currency of choice (barter is in use), and where marriage is as much about property as it is about love. As they re-create that vanished world, the pair finds greater understanding of the tumultuous relationships that sometimes exist between immigrant mothers and their children.
Writing at the time of political and social crisis in Athens, Aristophanes was an eloquent yet bawdy challenger to the demagogue and the sophist. The Achanians is a plea for peace set against the background of the long war with Sparta.
This reference tool covers the technology and methods of treatment for both types of lacquer and assesses current practices. It describes production technology and decorative techniques and discusses the materials used in Asian lacquer.
Artificial Intelligence: A Modern Approach offers the most comprehensive, up-to-date introduction to the theory and practice of artificial intelligence. Number one in its field, this textbook is ideal for one or two-semester, undergraduate or graduate-level courses in Artificial Intelligence.
This series offers students a bridge from simplified fiction to the original writings of famous literary figures. This complete text edition has an introduction and glossary and is suitable for students preparing for Cambridge Proficiency.