Determination of Li-6 -- He-4 interaction from multi-energy scattering data

We present the first successful potential model description of Li-6 -- He-4 scattering. The differential cross-sections for three energies and the vector analyzing powers for two energies were fitted by a single potential with energy dependent imaginary components. An essential ingredient is a set of Majorana terms in each component. The potential was determined using a recently developed direct data-to-potential inversion method which is a generalisation of the IP S-matrix-to-potential inversion algorithm. We discuss the problems related to this phenomenological approach, and discuss the relationship of our results to existing and future theories.Comment: 9 pages plain LaTeX, 6 postscript figue

Planning and market regulation: strengths, weaknesses and interactions in the provision of less inequitable and better quality health care

This paper argues that planned health care provision and market regulation play distinct roles in relation to the effective provision of equitable health care. Governmental planned provision has as a core objective ensuring that the health system is redistributive and that the poor have access to competent care. Market regulation has as its central objective the shaping of the role and behaviour of the private sector within the health system. Management of the health system as a whole, which is a governmental responsibility, therefore requires the integration of planning and regulation in a manner appropriate to each particular context

Studies on black scurf of potato caused by Rhizoctonia solani Khun : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science at Massey University

The potato, Solanum tuberosum L. is second only to wheat in importance as a food crop in New Zealand. During the last five years the total area of potatoes grown has fluctuated between 8,000 and 10,000 hectares, and the yield has increased steadily to over 25 tonnes per hectare (Table I). Table I Potato production in New Zealand. Area and production for several recent seasons*. Season Area (ha) Total Yield (tonnes) Yield (tonnes/ha) 1966-67 8,020 187,267 23.35 1967-68 9,517 235,831 24.78 1968-69 10,132 256,263 25.32 1969-70 9,928 253,263 25.51** 1970-71 7,689 (est.) * New Zealand Official Year Book, 1972. (Yield figures converted to metric equivalents). **= 10.15 tons/acre Although potatoes are grown in all parts of New Zealand, the bulk of the market is supplied from three areas. The Pukekohe district supplies the early markets from September to December and also substantial quantities of mid-season and main-crop potatoes. The February to July market is supplied principally from the Manawatu-Rangitikei district, and winter supplies (May to November) are drawn mainly from Canterbury, Otago and Southland (Claridge, 1972; Baxter, 1972). [FROM PREFACE

Study of individual responses of children to science experiences in the nursery school

Thesis (Ed.M.)--Boston Universit