On the Distinction Between Lag and Delay in Population Growth |
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Authors: | Peter Vadasz Alisa S Vadasz |
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Institution: | (1) College of Engineering, Forestry and Natural Sciences, Northern Arizona University, P.O. Box 15600, Flagstaff, AZ 86011-5600, USA;(2) Faculty of Engineering, University of KZ Natal, Durban, South Africa |
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Abstract: | The analysis and results presented in this paper provide conclusive evidence to distinguish between the delay effect and the
lag as two biologically distinct phenomena. It therefore dispels the incorrect notion that delay effects represented by delay
differential equations are the biological reason behind the lag phase in microorganism growth. The resulting consequence so
far is that the only other reason for the lag phase is the existence of unstable stationary states. The latter are a result
of accounting for the microbial metabolic mass transfer in the population growth process. |
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