University of Greenwich

About: University of Greenwich is a education organization based out in London, United Kingdom. It is known for research contribution in the topics: Population & Context (language use). The organization has 3749 authors who have published 9958 publications receiving 234340 citations.

A General Temporal Theory

Abstract: In this paper, a first-order theory of time is proposed as an underlying framework for most of the representative temporal models in artificial intelligence. The theory treats both points and intervals as primitive on an equal footing, and is shown to be powerful enough to subsume the interval based theories of Allen and Hayes, the point based theories of Bruce, of McDermott, and the interval and point based theories of Vilain and Knight and Ma. The approach is different from that of Ladkin, of Van Beck, of Dechter, Meiri and Pearl, and of Maiocchi, which is either to construct intervals out of points, or to treat points and intervals separately. Formal definitions are presented to characterize the open and closed nature of primitive intervals

Systematic conservation planning in the eastern English Channel: comparing the Marxan and Zonation decision-support tools

Abstract: The systematic conservation approach is now commonly used for the design of efficient marine protected area (MPA) networks, and identifying these priority areas often involves using specific conservation-planning software. Several such software programmes have been developed in recent years, each differing in the underlying algorithms used. Here, an investigation is made into whether the choice of software influences the location of priority areas by comparing outputs from Marxan and Zonation, two widely used conservation-planning, decision-support tools. Using biological and socio-economic data from the eastern English Channel, outputs are compared and it is shown that the two software packages identified similar sets of priority areas, although the relatively wide distribution of habitat types and species considered offered much flexibility. Moreover, the similarity increased with increasing spatial constraint, especially when using real-world cost data, suggesting that the choice of cost metric has a greater influence on conservation-planning analyses than the choice of software. However, Marxan generally produced more efficient results and Zonation produced results with greater connectivity, so the most appropriate software package will depend on the overall goals of the MPA planning process.

Authenticity, Social Context, and Well-Being in the United States, England, and Russia A Three Country Comparative Analysis

Abstract: The study investigated interrelationships among trait authenticity, context-specific authenticity, and well-being in three samples drawn from England, the United States, and Russia. Six hundred and twenty-eight adults participated: 196 from the United States, 240 from England, and 192 from Russia. The overall sample consisted of 151 men and 477 women with a mean age of 27 years (range = 18 to 56). Authenticity was rated both as a general trait and specific to four contexts: with partner, parents, friends, and work colleagues. Well-being was measured using a measure of positive mental health. English and American samples showed higher mean authenticity levels than the Russian sample. In all three subsamples, within-subjects differences in the context-specific ratings were in the same ordinal series; authenticity was rated highest with partner, followed by friends and parents, and lowest with work colleagues. Context and country showed an interaction in their effect on authenticity; United States and Englan...