Global trends including population growth, changing diets and consumption patterns, urbanisation and climate change will exert increasing pressure on supplies of food and other products of ecosystems. Many experts predict that food production will need to increase by up to 100 per cent over the next forty years and some suggest that this can only be achieved through intensification of current i...

The design of single transceiver based multichannel multi-hop wireless mesh networks focuses on the trade-off between rapid neighbor synchronization and maximizing the usage of all available channels. Existing designs are confined to the MAC layer and scale poorly as the network grows in coverage and density. We recently proposed Dominion as a cross-layer architecture that includes both medium ...

This paper describes a hybrid approach, using bibliometrics and text-mining, used to analyze longitudinal trends in the literature of e-marketing research from 2001 to 2010. The abstracts of 888 articles from six leading marketing journals were analyzed. The analysis identifies several core topics and themes of e-marketing research and reveals trends occurring in this growing area. The study re...

The concept of dominion (in the sense of Isbell) is investigated in the context of categories of groups, and their basic properties are established. They are then studied in the variety of metabelian groups. It is shown that the dominion of a subgroup in the variety of metabelian groups may be strictly larger than the subgroup itself. Section

This paper proposes a design for a system to generate constraint solvers that are specialised for specific problem models. It describes the design in detail and gives preliminary experimental results showing the feasibility and effectiveness of the approach.

titlan in the Valley of Mexico, that Aztec city was the capital of a far-flung tributary empire. The emperor Motecuhzoma sat atop a complex social and political hierarchy, and the Aztec populace owed allegiance and tribute to nobles at several levels. Below the emperor were the kings of subject city-states. The Aztec dominion employed a policy of indirect rule, and imperial authorities supporte...