Simple colour reaction for alkaptonuria.

Simple colour reaction for alkaptonuria.

Alkaptonuria.

Alkaptonuria (AKU) is a rare disorder of autosomal recessive inheritance. It is caused by a mutation in a gene that results in the accumulation of homogentisic acid (HGA). Characteristically, the excess HGA means sufferers pass dark urine, which upon standing turns black. This is a feature present from birth. Over time patients develop other manifestations of AKU, due to deposition of HGA in co...

Colour by Correlation: A Simple, Unifying Framework for Colour Constancy

This paper considers the problem of illuminant estimation: how, given an image of a scene, recorded under an unknown light, we can recover an estimate of that light. Obtaining such an estimate is a central part of solving the colour constancy problem that is of recovering an illuminant independent representation of the re ectances in a scene. Thus the work presented here will have applications ...

Simple colour design , and colour in LATEX

This article reviews some basic principles underlying the use of colour. We start by a review of the functional use of colour, explaining how it can help to focus attention, explain relationships, guide the viewer/reader through the presented information so that its contents is easier to absorb and appreciate. Some common rules for optimizing communication using colour elements in documents are...

Viii. a Specific Colour Reaction for Ergosterol

THE unique function of ergosterol as the parent substance of vitamin D made it desirable to find a colour reaction for it, by means of which it could be detected in the presence of other sterols. In searching for such a reaction, the property of formaldehyde of shifting the colour from the red into the blue part of the spectrum in the usual colour reactions of sterols [Whitby, 1923; Rosenheim, ...