David Roscoe

Learn More
BACKGROUND Patients with chronic exertional compartment syndrome (CECS) have pain during exercise that subsides with rest. Diagnosis is usually confirmed by intramuscular compartment pressure (IMCP) measurement. Controversy exists regarding the accuracy of existing diagnostic criteria. PURPOSE (1) To compare dynamic IMCP measurement and anthropometric(More)
Maxwell’s equations possess a certain generic structural property which is well-known, but rarely discussed. By considering this property as primary, we are able to derive the complete mathematical structure of Maxwell’s equations described in terms of the orthogonality properties defined between certain spaces of linear operators. But, we find that the(More)
One of the largest Hα rotation curve data bases of spiral galaxies currently available is that provided by Persic & Salucci, hereafter PS 1995, which has been derived by them from unreduced rotation curve data of 965 southern sky spirals obtained by Mathewson, Ford & Buchhorn, hereafter MFB 1992. Of the original sample of 965 galaxies, the observations on(More)
This paper is essentially a speculation on the realization of Mach’s Principle, and we came to the details of the present analysis via the formulation of two questions: (a) Can a globally inertial space & time be associated with a non-trivial global matter distribution? (b) If so, what are the general properties of such a global distribution? These(More)
Chronic exertional compartment syndrome (CECS) has been hypothesised, following clinical observations, to be the result of abnormal biomechanics predominantly at the ankle. Treatment of CECS through running re-education to correct these abnormalities has been reported to improve symptoms. However no primary research has been carried out to investigate the(More)
A rudimentary analysis of the 21 rotation curves given by Rubin et al. (1980) based on the hypothesis that Vrot = A R where (α, A) are constants particular to any given rotation curve, raised the further hypothesis that the distribution of the parameter lnA (estimated by linear regression on the rotation curves) has a discrete structure which, if(More)
An appropriate consideration of the relationship between the concept of relativistic inertial-mass (rest-mass), and the law of four-momentum conservation, leads to a natural two-fold partition of the class of all relativistic collision processes into those which are, in our own terminology, inertially determined processes, and the rest. We find that the(More)
In Roscoe 1999a, it was described how the modelling of a small sample of optical rotation curves (ORCs) given by Rubin et al 1980 with the power-law Vrot = AR, where where the parameters (A,α) vary between galaxies, raised the hypothesis that the parameter A (considered in the form lnA) had a preference for certain discrete values. This specific hypothesis(More)