John Dobson – författare

London dispersion interactions are responsible for numerous phenomena in physics, chemistry and biology. Recent years have seen the development of new, physically well-founded models, and dispersion-corrected density functional theory (DFT) is now a hot topic of research. This book is an overview of current understanding of the physical origin and modelling of London dispersion forces manifested at an atomic level. It covers a wide range of system, from small intermolecular complexes, to organic molecules and crystalline solids, through to biological macromolecules and nanostructures. In presenting a broad overview of the of the physical foundations of dispersion forces, the book provides theoretical, physical and synthetic chemists, as well as solid-state physicists, with a systematic understanding of the origins and consequences of these ubiquitous interactions. The presentation is designed to be accessible to anyone with intermediate undergraduate mathematics, physics and chemistry.

London dispersion interactions are responsible for numerous phenomena in physics, chemistry and biology. Recent years have seen the development of new, physically well-founded models, and dispersion-corrected density functional theory (DFT) is now a hot topic of research. This book is an overview of current understanding of the physical origin and modelling of London dispersion forces manifested at an atomic level. It covers a wide range of system, from small intermolecular complexes, to organic molecules and crystalline solids, through to biological macromolecules and nanostructures. In presenting a broad overview of the of the physical foundations of dispersion forces, the book provides theoretical, physical and synthetic chemists, as well as solid-state physicists, with a systematic understanding of the origins and consequences of these ubiquitous interactions. The presentation is designed to be accessible to anyone with intermediate undergraduate mathematics, physics and chemistry.

This book brings together for the first time two important features of a computer system to be embedded in an organisational context: responsibility, meaning whether the computer system properly supports the organisational responsibilities that people are allocated; and dependability, which means whether it does so in a way that people can justifiably trust it to perform its operation correctly.

Organisational responsibility is examined from philosophical, social and practical viewpoints, which then leads to a workflow design which supports those responsibilities. The approach pays particular attention to looking at what happens when things go wrong and the adjustments and workarounds that people make to fulfil their responsibilities when their primary operational tasks are unachievable or frustrated, and how these alternative strategies can be incorporated into the workflow design. The application of the method to multi-organisational contexts is dealt with in some detail.