Results 61 to 70 of about 595,693 (193)
Logistic Growth Described by Birth-Death and Diffusion Processes
Mathematics, 2019 We consider the logistic growth model and analyze its relevant properties, such as the limits, the monotony, the concavity, the inflection point, the maximum specific growth rate, the lag time, and the threshold crossing time problem.
Antonio Di Crescenzo, Paola Paraggio
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The Ramsey model with logistic population growth [PDF]
In standard economic growth theory it is assumed that labor force follows exponential growth, a not realistic assumption. As described in Maynard Smith (1974), the growth of natural populations is more accurately depicted by a logistic growth law.
Elvio Accinelli, Juan Gabriel Brida
core
Fractal dimension evolution and spatial replacement dynamics of urban growth
, 2011 This paper presents a new perspective of looking at the relation between fractals and chaos by means of cities. Especially, a principle of space filling and spatial replacement is proposed to explain the fractal dimension of urban form.
Bak +31 more
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A new logistic growth model applied to COVID-19 fatality data [PDF]
Epidemics, 2021 Triambak S +3 more
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A new modified logistic growth model for empirical use
Communication in Biomathematical Sciences, 2018 Richards model, Gompertz model, and logistic model are widely used to describe growth model of a population. The Richards growth model is a modification of the logistic growth model. In this paper, we present a new modified logistic growth model.
Windarto Windarto +2 more
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LOGISTIC MODELS OF STRUCTURED POPULATION GROWTH
Computers & Mathematics with Applications, 1986 The author considers the abstract semilinear evolution equation \[ (*)\quad \omega '(t)=A\omega (t)-\eta ({\mathcal F}\omega (t))\omega (t),\quad t\geq 0,\quad \omega (0)=x, \] and gives sufficient conditions for the solution to converge towards an equilibrium point.
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A New Logistic Model for Bacterial Growth
Journal of the Food Hygienic Society of Japan (Shokuhin Eiseigaku Zasshi), 2003 A new logistic model for bacterial growth was developed in this study. The model is based on a logistic model, which is often applied for biological and ecological population kinetics. The new model is described by a differential equation and contains an additional term for suppression of the growth rate during the lag phase, compared with the original
Hiroshi, Fujikawa +2 more
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GillespieSSA: Implementing the Gillespie Stochastic Simulation Algorithm in R
Journal of Statistical Software, 2008 The deterministic dynamics of populations in continuous time are traditionally described using coupled, first-order ordinary differential equations. While this approach is accurate for large systems, it is often inadequate for small systems where key ...
Mario Pineda-Krch
doaj
Critical points in logistic growth curves and treatment comparisons
Scientia Agricola, 2012 Several biological phenomena have a behavior over time mathematically characterized by a strong increasing function in the early stages of development, then by a less pronounced growth, sometimes showing stability.
José Raimundo de Souza Passos +3 more
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Two-dimensional stability analysis in a HIV model with quadratic logistic growth term
, 2012 We consider a Human Immunodeficiency Virus (HIV) model with a logistic growth term and continue the analysis of the previous article [6]. We now take the viral diffusion in a two-dimensional environment.
Brauner, Claude-Michel +2 more
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