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Several letters to the editor are presented including an invitation for the 40th anniversary of the International Women's Year (IWY) Conference, a suggestion for including wheelchair access for disabled lesbians in guesthouses and such, and praises for the magazine providing lesbian community support.

* Owens, Howarth, Sand; Lavender, Sidhom, Wilson-Johnson, Roden, Bannatyne-Scott; Huddersfield Choral Society, BBC Philharmonic, Martinez. Conifer Classics CDCF-250/1 (2) First performed in Leipzig in 1906 under the title Strandrecht, this [...]

In this paper we report the utility of a variety of silica impregnated bi- and trimetallic catalysts for the conversion of ethanol into 1,3-butadiene. The highest selectivity observed was 67%. The catalysts have been characterised via29Si solid-state NMR spectroscopy, TEM, XPS, pXRD and nitrogen adsorption studies. Different silica materials have been investigated as supports and there appears to be a relationship between the pore diameter and the selectivity to 1,3-butadiene. When the same metals were impregnated on non-acidic supports the conversion dramatically reduced.

The Government has promised patients a choice of hospital when referred by their GP for treatment, and much time and money has been spent on implementation. But are patients being offered a choice of hospital, and if so, how are they choosing? This article presents findings from interviews with NHS patients about whether and how they chose a hospital, and discusses the implications.

ABSTRACTMonoclonal antibodies (MAbs) to the lipopolysaccharide (LPS) O-antigens of Campylobacter fetusserotype A and B strains were produced. Eight MAbs specific for serotype A LPS were characterized on immunoblots of C. fetusserotype A LPS. Two immunoblot patterns were observed and were used to divide the eight MAbs into two groups. MAbs M1177 and M1194 were selected as representative of the two groups and were used in an enzyme-linked immunosorbent assay (ELISA) to examine the LPS O-antigen epitopes of 37 serotype A C. fetussubsp. fetusand C.fetussubsp. venerealisstrains. Thirty-three strains (89%) reacted with both M1177 and M1194, 2 strains reacted only with M1177, and 2 strains reacted only with M1194. To further characterize the O-antigen epitopes, purified serotype A LPS was treated using various temperature and pH conditions and the effect of the treatments on the reactivity of the LPS with MAbs M1177 and M1194 was evaluated by ELISA. While no difference among several treatments was observed, heating serotype A LPS under alkaline conditions decreased the reaction with M1177 to background levels and increased the reaction with M1194. MAbs M1177 and M1194 were also used with ELISA to investigate in vivo and in vitro expression of the two O-antigen epitopes. There was substantial variation in expression of the two epitopes among weekly isolates of two C. fetusserotype A strains recovered from experimentally infected heifers. There was minimal variation in expression of the two epitopes in successive subcultures of three C. fetusserotype A strains.

In the presence of rhodium complexes of triethylphosphine, CO and ethene react in methanol to give pentan-3-one with selectivities up to 85%; model studies and deuterium labelling suggest that the mechanism involves hydroxycarbene and η²-3-oxopentyl derivatives.

Using rhodium complexes of tertiary phosphines with carbonyl groups β to the P atom, ethene and CO react in methanol to give products involving increased chain growth (octane-3,6-dione, methyl 4-oxohexanoate) compared with PEt₃ complexes and unsaturated products (methyl propenoate, penten-3-one and 1-methoxypentan-3-one from addition of methanol to penten-3-one); mechanistic studies suggest that the ligand carbonyl group prevents coordination of the keto group in the growing chain.

For Abstract see ChemInform Abstract in Full Text.