population model वाक्य
उदाहरण वाक्य
मोबाइल
- This includes the establishment of a population model for local populations and an assessment of the appropriateness of genetic markers as a tool to measure the program's contribution to catches.
- Initial attempts to explain the spatial distribution of animals had been based on approaches like Bartlett s stochastic population models and the negative binomial distribution that could result from birth-death processes.
- This model, and a few other well-known population models, can be explicitly derived from individual-level processes assuming contest competition and a random distribution of individuals among resources.
- In around 2000, she became interested in cancer immunology, and began doing research on population models featuring cells of three types : normal cells, cancer cells, and immune cells.
- This generation of proficiency estimates is done using a latent regression extension of the Rasch model, a model of item response theory ( IRT ), also known as conditioning model or population model.
- One key point is adjustment : I will make up illustrative numbers : a polling organization may assume in their population model that the voters are, say 55 % Democrat and 45 % Republican.
- The logistic population model, the Lotka Volterra model of community ecology, life table matrix modeling, the equilibrium model of island biogeography and variations thereof are the basis for ecological population modeling today.
- In some cases the complex interactions between " inhibitory " and " excitatory " neurons can be simplified using mean field theory, which gives rise to the population model of neural networks.
- In 2003, a population model was released by the United States Geological Survey that predicted an extremely grave situation confronting the manatee in both the Southwest and Atlantic regions where the vast majority of manatees are found.
- Source population models can be expected to become more robust as more results are compiled, the heritage of modern proxy candidates becomes better understood, and fossil DNA in the regions of interest is found and considered.
- In fact, the only stable states in the two population model correspond to the pure strategy equilibria, where one population is composed of all " Hawk " s and the other of all " Dove " s.
- Possibly the main difference between considering two independent normal populations and a mixture model of two normal components is in the mixing proportions, which is the same as saying that in the two independent normal population model the interaction between sexes is ignored.
- The roots of the basic reproduction concept can be traced through the work of Alfred Lotka, Ronald Ross, and others, but its first modern application in epidemiology was by George MacDonald in 1952, who constructed population models of the spread of malaria.
- A limit theorem for independent and identically distributed variables, as with the Tweedie convergence theorem, might then be considered as being fundamental relative to the " ad hoc " population models, or models proposed on the basis of simulation or approximation.
- *The Ricker model is a classic discrete population model which gives the expected number ( or density ) of individuals " N " " t " + 1 in generation " t " + 1 as a function of the number of individuals in the previous generation,
- A primary law of population ecology is the Malthusian growth model which states, " a population will grow ( or decline ) exponentially as long as the environment experienced by all individuals in the population remains constant . " Simplified population models usually start with four variables : death, birth, immigration, and emigration.
- *The Beverton Holt model, introduced in the context of fisheries in 1957, is a classic discrete-time population model which gives the expected number " n " " t " + 1 ( or density ) of individuals in generation " t " + 1 as a function of the number of individuals in the previous generation,
- The pulse mode is more complex to model and numerous detailed neuron models and population models are described by Gerstner and Kistler in Parts I and II of Gerstner, W ., & Kistler, W . ( 2002 ) and Chapter 8 of Sterratt, D ., Graham, B ., Gillies, A ., & Willshaw, D . ( 2011 ).
- Every initial population proportion ( except all " Hawk " and all " Dove " ) converge to the mixed strategy Nash Equilibrium where part of the population plays " Hawk " and part of the population plays " Dove " . ( This occurs because the only ESS is the mixed strategy equilibrium . ) In the two population model, this mixed point becomes unstable.
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