Vol. 25 No. 1 (2009)

Published: 2011-03-14

Editorial

Editorial to Volume 25(1)
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Research Articles

An easy and low cost option for economic statistical process control using Excel

PJU van Deventer, ZG Manna
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A stochastic model of the dynamics of HIV under a combination therapeutic intervention

VSS Yadavalli, MMO Labeodan, S Udayabaskaran, Y Mwanga
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Optimal portfolio strategies under a shortfall constraint

D Akuma, B Luderer, R Wunderlich
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Mathematical principles of road congestion pricing

WJ Pienaar, JH Nel
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A resource allocation model to support efficient air quality management in South Africa

U Govender, J Kruger
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Conjugate descent formulation of backpropagation error in feedforward neural networks

NK Sharma, S Kumar, MP Singh
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