THE COLCHESTR MEDIcAL SocIrY was founded in 1774 by Robert Richardson Newell (1750-1814), a surgeon and apothecary practising in the town. It is the oldest provincial medical society in Great Britain.' The earliest minute books have been lost, but the date is confirmed in Dr. Newell's obituary notice in the local press," and by the Medical Register for 1779, which lists all the members at that ...

A key notion bridging the gap between quantum operator algebras [22] and vertex operator algebras [4][8] is the definition of the commutativity of a pair of quantum operators (see section 2 below). This is not commutativity in any ordinary sense, but it is clearly the correct generalization to the quantum context. The main purpose of the current paper is to begin laying the foundations for a co...

We present a global analysis of the geometries that arise in non-compact current algebra (or gauged WZW) coset models of strings and particles propagating in curved space-time. The simplest case is the 2d black hole. In higher dimensions these geometries describe new and much more complex singularities. For string and particle theories (defined in the text) we introduce general methods for iden...

The solutions of Einstein’s equations admitting one non-null Killing vector field are best studied with the projection formalism of Geroch. When the Killing vector is lightlike, the projection onto the orbit space still exists and one expects a covariant theory with degenerate contravariant metric to appear, its geometry is presented here. Despite the complications of indecomposable representat...

Int. C. A6 IK38/10 (2006.01) A6 IK38/8 (2006.01) CI2O I/68 (2006.01) A6 IK38/17 (2006.01) GOIN33/50 (2006.01) A61 K38/03 (2006.01) U.S. C. CPC .......... CI2O I/6883 (2013.01); A61K 38/1774 (2013.01); A61 K38/1825 (2013.01); G0IN 33/5023 (2013.01); A61K 38/03 (2013.01); A61 K 38/10 (2013.01); C12O 2600/106 (2013.01); C12O 2600/136 (2013.01); C12O 2600/158 (2013.01); G0IN 2800/304 (2013.01) Fiel...

We report on the results of a deep XMM-Newton observation of RBS 1774, the most recent dim isolated neutron star candidate found in the ROSAT archive data. Spectral and timing analysis of the high-quality PN and MOS data confirm the association of this source with an isolated neutron star. The spectrum is thermal and blackbody-like, and there is evidence at a significance level > 4σ that the so...

AMERICANS are taught that the English Unitarian minister Joseph Priestley discovered oxygen in 1774. Scandinavians are taught that the Swedish apothecary Carl Wilhelm Scheele generated oxygen in Uppsala in 1771–2, several years before Priestley. Scheele claimed that he wrote Lavoisier, describing the experiments in September, 1774. However, Lavoisier denied seeing or receiving his letter. Among...