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En este libro se estudian los procesos dinamicos de transferencia de carga en la colision de iones con superficies. El marco conceptual para la descripcion del sistema interactuante atomo-superficie lo provee el modelo de Anderson. En una vision localizada del proceso de intercambio de carga se analiza el efecto de la estructura electronica del solido (estructura de bandas, presencia de gaps superficiales), y se discuten distintas aproximaciones de la repulsion coulombiana en el sitio del atomo. Mediante el lenguaje de proyectores se incluyen las configuraciones atomicas que se consideran con...

This book examines sexual fantasies and their influence on everyday life through the stories of twenty-two men who introduce themselves as bugchasers, i.e. gay men who eroticize HIV. The author defines bugchasing, charts its history and contexts, and considers how it has changed in the age of internet and PrEP. Through the participants, their experiences and contexts, this text also theorizes about sexual fantasies, seeking to understand how people define sexual fantasies and use the internet as a space to navigate their desires, meet others, and find support. Chapters also consider the...

The transition to a post-carbon society, in which the consumption of fossil fuels decreases over time, has become an inevitability due to the need to prevent catastrophic climate change, the increasing cost and scarcity of energy, and complex combinations of both of these factors.

This volume presents a quantitative study of Cuban slavery from the late eighteenth century until 1880, the year slavery was formally abolished on the island. The core of this study is an examination of the yearly movement of slave prices and changes in the demographic characteristics of the slave market. Incorporating over 30,000 slave transactions from three separate locations in Cuba--Havana, Santiago, and Cienfuegos--this work comprises the largest extant database on any slave market in the Americas.