Obituary: Ronnie CampbellWe've lost Ronnie Campbell...

Introduction by Ronnie Brown

The theory we describe in this book was developed over a long period, starting about 1965, and always with the aim of developing groupoid methods in homotopy theory of dimension greater than 1. Algebraic work made substantial progress in the early 1970s, in work with Chris Spencer, and in 1974 by Brown and Higgins. A substantial step forward in 1974 led us over the years into many fruitful area...

Ronnie Hermens Weakly Intuitionistic Quantum Logic

In this article von Neumann’s proposal that in quantum mechanics projections can be seen as propositions is followed. However, the quantum logic derived by Birkhoff and von Neumann is rejected due to the failure of the law of distributivity. The options for constructing a distributive logic while adhering to von Neumann’s proposal are investigated. This is done by rejecting the converse of the ...

Free Finite Group Actions on S by Ronnie Lee and Charles Thomas

In this paper we describe the first stages of a theory of 3-manifolds with finite fundamental group. The strong conjecture that any free finite group action on S is conjugate to a linear action is known for some cyclic groups, see [3], [4], and is supported by recent work of one of us on fundamental groups [2]. Here we concern ourselves with the weaker conjecture that any compact 3-manifold wit...

Environmental Decision - making the roles of scientists , engineers and the public Editor Ronnie Harding

The Ronnie Gardiner Rhythm and Music Method - a feasibility study in Parkinson's disease.

PURPOSE To assess the feasibility of the novel intervention, Ronnie Gardiner Rhythm and Music (RGRM™) Method compared to a control group for patients with Parkinson's disease (PD). METHOD Eighteen patients, mean age 68, participating in a disability study within a neurological rehabilitation centre, were randomly allocated to intervention group (n = 12) or control group (n = 6). Feasibility w...