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Ionic crystals are among the simplest structures in nature. They can be easily cleaved in air and in vacuum, and the resulting surfaces are atomically flat on areas hundreds of nanometers wide. With the development of scanning probe microscopy, these surfaces have become an ideal “playground” to investigate several phenomena occurring on the nanometer scale. This book focuses on the fundamental studies of atomically resolved imaging, nanopatterning, metal deposition, molecular self-assembling and nanotribological processes occurring on ionic crystal surfaces. Here, a significant variety of structures are created by nanolithography, annealing and irradiation by electrons, ions or photons, and are used to confine metal particles and organic molecules or to improve our basic understanding of friction and wear on the atomic scale. Metal oxides with wide band gap are also discussed. Altogether, the results obtained so far will have an undoubted impact on the future development of nanoelectronics and nanomechanics.
Nanosciences and nanotechnology are at the interface between physics, chemistry, engineering and biology. The fundamental processes of living matter occur on the nanometre scale. This book is based on local probes (STM, AFM, SNOM) and related supreme technological acheivements. Topics are covered extensively, covering issues such as: clusters, nanocontacts, photonic bad gap materials, atom manipulation by light, atom optics with Bose-Einstein condensates, and quantum computing.
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The military nobility – "signori di castelli", lords of castles – formed an important component of the society of Renaissance Italy, although they have often been disregarded by historians, or treated as an anomaly. In Barons and Castellans: The Military Nobility of Renaissance Italy, Christine Shaw provides the first comparative study of “lords of castles”, great and small, throughout Italy, examining their military and political significance, and how their roles changed during the Italian Wars. Her main focus is on their military resources and how they deployed them in public and private wars, in pursuit of their own interests and in the service of others, and on how their military weight affected their political standing and influence.
Cover: i tempi del cibo. Ciò che mangiamo racconta la nostra storia. riti, simboli e tradizioni: opinioni ed interviste. People: Ambra Angiolini, Angelo Branduardi, Vito Mancuso Cover: The Era of Food. What we eat tells our story. Rites and traditions.