Here, as the industrial revolution evolved, the fraction of the labour force in agriculture declined while the fraction in industry grew. In this paper we introduce a generalized logistic equation and present its properties. Then we revisit several important growth models in chronological order and ...
Estimation of the parameters of a stochastic logistic growth model. arXiv:1307.2217 [math.ST]. Google Scholar Capocelli and Ricciardi, 1974 R. Capocelli, L. Ricciardi Growth with regulation in random environment Kybernetik, 15 (3) (1974), pp. 147-157 Google Scholar Chen et al., 2010 Y....
AC Kolasinski,AF Siegel - 《Social Science Electronic Publishing》 被引量: 136发表: 2010年 Algorithms for converting estimates of child malnutrition based on the NCHS reference into estimates based on the WHO Child Growth Standards For each indicator, a simple linear regression model was fitted, us...
The Exponential Equation is a Standard Model Describing the Growth of a Single Population The easiest way to capture the idea of a growing population is with a single celled organism, such as a bacterium or a cilliate. In Figure 1, a population of Paramecium in a small laboratory ...
The first section of the table is labeled id: Identity, meaning that these are random effects at the id (pig) level and that their variance–covariance matrix is a multiple of the identity matrix; that is, Σ = σu2I. The estimate of σu2 is 14.82 with standard error 3.12. 3. The ...
Binary logistic regressionis a statistical method used to predict the relationship between a dependent variable and an independent variable. In this method, the dependent variable is a binary variable, meaning it can take only two values (yes or no, true or false, success or failure, 0 or 1...
In its general form, keeping search growth constant, the dispersive part of the discovery model produces a cumulative function that looks like this: D(x) = x * (1-exp(-k/x))The instantaneous curve generated by the derivative looks like dD(x)/dx = c * (1-exp(-k/x)*(1+k/x))...
I mentioned earlier that chaotic systems havestrange attractorsand that their structure can be characterized asfractal. Fractals areself-similar, meaning that they have the same structure at every scale. As you zoom in on them, you find smaller copies of the larger macro-structure. Here, at thi...
This paper analyzes the quasilinear elliptic boundary value problem driven by the mean curvature operator divu∕1+|u|2=λa(x)f(u)inΩ,u=0onΩ,with the aim of understanding the effects of a flux-saturated diffusion in logistic growth models featuring spatial heterogeneities. Here, Ω is a...
Guiding wind energy sector growth through suitability analysis is a growing priority. We present in this work a logistic regression model that predicts suitable sites for state-level and nationwide wind energy development in the United States. The model's aggregation of publicly available data to 20...