Abstract We call a packing of hyperspheres in n dimensions an Apollonian sphere if the spheres intersect tangentially or not at all; they fill -dimensional Euclidean space; and every is member cluster $n+2$ mutually tangent (and few more properties described herein). In this paper, we describe eight that naturally arises from study generic nodal Enriques surfaces. The $E_7$ , $E_8$ Reye lattice...

Retrospective assessment of hepatic and central nervous system involvement associated with chickenpox cases at a large metropolitan medical center reveals that 28 of 58 patients had biochemical, but not inflammatory, evidence of liver involvement. An additional 18 patients had biochemical liver abnormalities along with non-inflammatory encephalopathy (Reye syndrome) and 12 had clear evidence of...

QUESTION Recently, I had a visit from a 5-year-old patient who had been given bismuth subsalicylate for a diarrheal illness by a local family physician during a trip to South America. Is this a practice we should encourage? ANSWER Research from developing countries has found the use of bismuth subsalicylate to be effective in shortening the duration of diarrheal illness. Despite these finding...

Bayesian Belief Networks provide a principled, mathematically sound, and logically rational mechanism to represent student models. The belief net backbone structure proposed by Reye [14,15] offers a practical way to represent and update Bayesian student models describing both cognitive and social aspects of the learner. Considering students as active participants in the modelling process, this ...

Correspondence: MPS, e-mail . Received 30 March 2009 and revised version accepted 16 July 2009. Competing interests: none declared. Margosa oil induced toxic encephalopathy is a recognised entity [1]. It presents with vomiting which begins minutes to hours after ingestion, followed by drowsiness and generalised seizures. Hepatomegaly, elevated liver enzymes, metabo...

Seeking to determine the effect of liver disease associated with Reye's syndrome on the regulation of plasma pyridoxal 5'-phosphate, we measured this compound in plasma from 11 patients with biopsy-proven Reye's syndrome. Its concentrations in plasma are significantly higher [37.5 (SD 6.13) micrograms/L] at the onset of the disease than after treatment [8.50 (SD 2.9) micrograms/L] or in a group...