LightSketch - a Sketch-Modelling Program for Lighting Analysis

This paper presents a flexible, yet powerful lighting analysis tool, LightSketch. LightSketch is a sketch-based modelling program for lighting analysis. It allows the user to draw both architectural and lighting related symbols which are converted into a 3D model for lighting visualisation. It is motivated by examining the strengths and limitations of current lighting design practices. Its use is illustrated with design scenarios

Accounting, Valuation and Duration of Football Player Contracts

"FRS 10" requires investments in player contracts by football companies to be capitalized and amortized. Given the high degree of uncertainty associated with such contracts, it is not clear that this treatment is consistent with asset capitalization criteria. The evidence provided in this paper does not support inconclusively this capitalization requirement in that it indicates weak association of investment in player contracts with three measures of future benefits. In particular, the duration of this association is at most two years, which is shorter than the duration implied by the amortization period reported by sample companies. Nonetheless, other findings suggest that market participants seem to agree with the treatment prescribed by "FRS 10". These results should be of interest to practitioner and standard setters who (axiomatically) regard intangibles acquired in an arm's length transaction as assets. Copyright Blackwell Publishers Ltd, 2005.

A procedure for setting up high-throughput nanolitre crystallization experiments. II. Crystallization results

An initial tranche of results from day-to-day use of a robotic system for setting up 100 nl-scale vapour-diffusion sitting-drop protein crystallizations has been surveyed. The database of over 50 unrelated samples represents a snapshot of projects currently at the stage of crystallization trials in Oxford research groups and as such encompasses a broad range of proteins. The results indicate that the nanolitre-scale methodology consistently identifies more crystallization conditions than traditional hand-pipetting-style methods; however, in a number of cases successful scale-up is then problematic. Crystals grown in the initial 100 nl-scale drops have in the majority of cases allowed useful characterization of x-ray diffraction, either in-house or at synchrotron beamlines. For a significant number of projects, full x-ray diffraction data sets have been collected to 3 Å resolution or better (either in-house or at the synchrotron) from crystals grown at the 100 nl scale. To date, five structures have been determined by molecular replacement directly from such data and a further three from scale-up of conditions established at the nanolitre scale