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1. HIGHLIGHTS Van den Bergh completed his monograph, The Galaxies of the Local Group, which is being published by Cambridge University Press in 2000. A systematic search begun for faint emission lines indicative of recent star formation in all the bright galaxies in the low-density regions of the Updated Zwicky Catalogue detected 17 new minor-merger pairs.(More)
—An automatically switched optical network (ASON) can be used as the transport layer of generalized multiprotocol label switching (GMPLS) networks. The design of an ASON involves determining the number of optical cross-connects (OXC) in the network, the required number of ports per OXC, and the in-terconnection topology of the OXCs. Given the number of(More)
  • R W Brown, K E Chapman, +9 authors J R Seckl
  • 1996
By inactivating potent glucocorticoid hormones (cortisol and corticosterone), 11 beta-hydroxysteroid dehydrogenase type 2 (11 beta-HSD2) plays an important role in the placenta by controlling fetal exposure to maternal glucocorticoids, and in aldosterone target tissues by controlling ligand access to co-localized glucocorticoid and mineralocorticoid(More)
In this paper, we describe an application scenario where distributed artificial intelligence is needed for performance monitoring and fault diagnosis in a telecommunications network. We then describe the prototype agent-based system that we have developed for this task. Based on this application scenario, we highlight the key issues that have affected the(More)
Optical buffering is a major challenge in realizing all-optical packet switching. In this paper we propose a new buffer called a multipleinput single-output FIFO (MISO-FIFO) optical buffer that supports several functions normally associated with electronic RAM. Our structure reduces the physical size of a buffer by up to an order of magnitude or more by(More)
We consider the routing and wavelength assignment (RWA) optimization problem with no wavelength conversion for multi-fiber WDM networks. We formulate a mixed integer linear program (MILP) that optimizes the three RWA subproblems together, they are: (1) routing of traffic demands; (2) routing of lightpaths; and (3) wavelength assignment for lightpaths.(More)
Control of invasive predators is necessary for the conservation of many endemic species. Invasive predator management tends to focus on priority sites, which often comprise only a small fraction of the impacted area. Landscape-scale ecological recovery requires threatening processes to be managed not only in these priority areas, but also in the matrix(More)
The modelling method used to build our prediction model was a Mask Perceptron (Kowalczyk and Ferra 1994) with Boosting. The original data was then analysed in the light of this model using a multi-dimensional visualisation tool. The caravan policy holders tend to be wealthier people who spend more on car insurance (i.e., greater than 1000 NLG), and who(More)