نتایج جستجو برای: divergence analysis

تعداد نتایج: 2858177  

2016
Alex R. Gunderson D. Luke Mahler Manuel Leal

A functional analysis of the contribution of climatic niche divergence to adaptive 1 radiation 2 22 23. CC-BY-NC-ND 4.0 International license peer-reviewed) is the author/funder. It is made available under a The copyright holder for this preprint (which was not. Abstract 24 Analyses of evolutionary radiations have traditionally focused on traits related to 25 resource acquisition, habitat use, ...

Bayesian evolutionary analysis provide a statistically sound and flexible framework for estimation of evolutionary parameters. In this method, posterior estimates of evolutionary rate (μ) are derived by combining evolutionary information in the data with researcher’s prior knowledge about the true value of μ. Nucleotide sequence samples of fast evolving pathogens that are taken at d...

M. Abbasnejad, M. Tavakoli, N. R. Arghami,

In this paper, we introduce a goodness of fit test for expo- nentiality based on Lin-Wong divergence measure. In order to estimate the divergence, we use a method similar to Vasicek’s method for estimat- ing the Shannon entropy. The critical values and the powers of the test are computed by Monte Carlo simulation. It is shown that the proposed test are competitive with other tests of exponentia...

Journal: :journal of heat and mass transfer research(jhmtr) 2014
mohammad hadi hamedi estakhrsar mehdi jahromi

compressible gas flow inside a convergent-divergent nozzle and its exhaust plume atdifferent nozzle pressure ratios (npr) have been numerically studied with severalturbulence models. the numerical results reveal that, the sst k–ω model give the bestresults compared with other models in time and accuracy. the effect of changes in value ofdivergence half-angle (ε ) on the nozzle performance, thru...

Dariush Mokhtari Kajori, Reza Jamkarani

This research aims to investigate the effect of conservative reporting on the investors' opinion divergence at the time of earnings announcement in a 5 year period during 2012-2016; the required data have been collected from Tehran Securities and Stock Exchange Organization and the population is consisted of 585 corporates-years which have been selected by the systematic removal sampling. To in...

ژورنال: اندیشه آماری 2020
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The minimum density power divergence method provides a robust estimate in the face of a situation where the dataset includes a number of outlier data. In this study, we introduce and use a robust minimum density power divergence estimator to estimate the parameters of the linear regression model and then with some numerical examples of linear regression model, we show the robustness of this est...

2011
Johan Lyhagen Johanna Rickne Bertil Holmlund

This paper develops an improved test of economic convergence or divergence using time series methods. The usefulness of the method is illustrated in an analysis of the growth pattern between Chinese regions in 1952-2007. Comparing all combinations of regional pairs, the analysis yields support for economic divergence in roughly half of the cases. In the other half, we instead find that regions ...

Journal: :Physical review letters 2006
Maksym Kryvohuz Jianshu Cao

The time divergence of classical nonlinear response functions reveals the fundamental difficulty of dynamic perturbation based on classical mechanics. The nature of the divergence is established for systems in regular motions using asymptotic decomposition of Fourier integrals. The asymptotic analysis shows that the divergence cannot be removed by phase-space averaging such as the Boltzmann dis...

Journal: :Genetics 1988
W R Atchley S Newman D E Cowley

Genetic divergence in the form of the mandible is examined in ten inbred strains of mice. Several univariate and multivariate genetic distance estimates are given for the morphological data and these estimates are compared to measures of genealogical and molecular divergence. Highly significant divergence occurs among the ten strains in all 11 mandible traits considered individually and simulta...

2006
Daniel I. Bolnick Thomas J. Near Peter C. Wainwright

Question: Does morphological divergence accelerate the evolution of post-zygotic reproductive isolation? Data incorporated: Estimates of divergence time between species, body size divergence, and hybrid embryo viability in the freshwater fish family Centrarchidae. Method of analysis: We estimated the age of each node in the phylogeny using penalized likelihood, calibrated with multiple fossil d...

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