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The multi-configuration resonating-group method is employed to study the properties of the three-nucleon system. The model space is spanned by p+ d, p+ d', n+ 2 p, and a large number of their associated pseudo-inelastic configurations. The nucleon-nucleon potential used is the Minnesota potential which contains nuclear central, Coulomb, and spin-orbit components. The results show that the calculated p+ d complex phase shifts agree well with the values obtained by an empirical analysis of experimental data. Differential scattering and total reaction cross sections in the p+ d system are calculated at centre-of-mass energies up to 32 MeV. Without adjusting any parameter, it is found that the agreement between calculation and experiment is quite satisfactory. The effects of successively enlarging the model space have also been examined. Here the finding is that, in order to obtain reliable results, all three types of cluster configurations must be included in the calculation. [ABSTRACT FROM AUTHOR]

Examines the immunological reason for chronic ill health of a group of patients after infectious mononucleosis. Information on infectious mononucleosis; Features of patients chronically ill after infectious mononucleosis; Classification of peripheral blood T cells.

Torsion of an intra-abdominal testis is a rare cause of acute abdominal pain. With a history of undescended testis, it is difficult to establish the diagnosis and to exclude other emergency abdominal conditions without a laparotomy. The following case report illustrates the usefulness of laparoscopy as a diagnostic as well as a therapeutic tool in such a condition. [ABSTRACT FROM AUTHOR]

Reports on a clinical audit of endoscopic retrograde cholangiopancreatography (ERCP) and laparoscopic cholecystectomy at the Surgery Department of the Alice Ho Miu Ling Nethersole Hospital in Hong Kongk, China from 1997 to 1998. Review of the incidence of blood transfusion; Discontinuation of post-sphincterotomy bleeding with local adrenaline injection; Chart showing ERCP results.