الصفحة 1
الصفحة 1
Fundamental Trends in City Development
This book inquires into how the city can be re-established as the space of dialogue and communication, how the spatial conditions of the public sphere can be created and the city retrieved. And what the features might be of a city retrieved and restored to its citizens. The book adopts the concept of externity as an innovative element for the project for the city, a constituent feature of all those situations traditionally considered non-functional, therefore external, to our contemporary post-cities, which are consigned to us adrift through decomposition, genericity and segregation. We thus need to try to get the city to conserve and show its past even when not visible, and to continue nurturing the imagination of its inhabitants by urban action consisting perhaps of subtly improving their approach to the "void", the "small", to the past, the territory, in general, to all those spatial concepts which are in a sense external to our cultural worlds today, but which represent the most fertile material for the project for the city.
Datatype-Generic Programming ; International Spring School, SSDGP 2006, Nottingham, UK, April 24-27, 2006, Revised Lectures
A leitmotif in the evolution of programming paradigms has been the level and extent of parametrisation that is facilitated — the so-called genericity of the paradigm. The sorts of parameters that can be envisaged in a programming language range from simple values, like integers and fioating-point numbers, through structured values, types and classes, to kinds (the type of types and/or classes).Datatype-generic programming is about parametrising programsby the structure of the data that they manipulate. To appreciate the importance of data type genericity,one need look no further than the internet. The internet is a massive repository of structured data, but the structure is rarely exploited. For example, compression of data can be much more efiective if its structure is known, but most compression algorithms regard the input data as simply a string of bits, and take no account of its internal organisation. Datatype-generic programming is about exploiting the structure of data when it is relevant and ignoring it when it is not. Programming languages most c- monly used at the present time do not provide efiective mechanisms for do- menting and implementing datatype genericity.
