There are 1.9 hectares of productive land available for each of the 6 billion people living in the world at present. In our industrialised Western society it is sometimes hard to realise quite how fundamental land is to our life on earth. The top six inches of land, which is soil, has to provide us with all our food. The land has to absorb much of our waste and is the catchment and filter for o...

This paper serves three purposes. First, it gives a short introduction to the concept of sustainability in relation to land use. Since the Brundtland report it has become clear that sustainability is a dynamic concept that changes when conditions in society change. Moreover, it is easier to assess what is ‘unsustainable’ than what is ‘sustainable’. But that will not suppress the demand for sust...

Our work is regarding the analysis of land use changes, in the light of “saving soil” against the expansion due to unearned plus value of land: The loss of natural and agricultural surface in front of the expanding urban environment is a critical aspect of unsustainability of urban development, especially in the way it was carried out in the past decades. The measure of the physical transition ...

A significant share of future urban energy consumption is predetermined when land-use and urban form are designated. Community Energy Management (CEM) is a sustainable energy strategy which looks at how shaping the built environment and designing urban services in consideration of energy production, distribution and use could affect both the long term demand for energy and the type of energy su...

We consider the problem of computing the complete answer to a query when there is limited access to relations, i.e., when binding patterns require values to be speciied for certain attributes in order to retrieve data from a relation. This problem is common in information-integration systems , where heterogeneous sources have diverse and limited query capabilities. A query is stable if for any ...

We study the development of conjunctive keyword searchable scheme which enables one to search encrypted documents by using more than one keyword. The notion of conjunctive keyword searching was presented by Golle et al. in 2004. However, their security model was constructed in a symmetric-key setting which is not applicable for the overall applications in the reality. So Park et al. extended Go...