Results 21 to 30 of about 4,965 (246)

Nonlinear Theory for Coalescing Characteristics in Multiphase Whitham Modulation Theory [PDF]

open access: yesJournal of Nonlinear Science, 2020
AbstractThe multiphase Whitham modulation equations with N phases have 2N characteristics which may be of hyperbolic or elliptic type. In this paper, a nonlinear theory is developed for coalescence, where two characteristics change from hyperbolic to elliptic via collision.
Thomas J. Bridges, Daniel J. Ratliff
openaire   +5 more sources

Biogeography of speciation of two sister species of neotropical amazona (Aves, Psittaciformes) based on mitochondrial sequence data. [PDF]

open access: yesPLoS ONE, 2014
Coalescent theory provides powerful models for population genetic inference and is now increasingly important in estimates of divergence times and speciation research.
Amanda V Rocha   +4 more
doaj   +1 more source

Inference of demographic history from genealogical trees using reversible jump Markov chain Monte Carlo

open access: yesBMC Evolutionary Biology, 2005
Background Coalescent theory is a general framework to model genetic variation in a population. Specifically, it allows inference about population parameters from sampled DNA sequences.
Fahrmeir Ludwig   +2 more
doaj   +1 more source

An Application of the Coalescence Theory to Branching Random Walks [PDF]

open access: yesJournal of Applied Probability, 2013
In a discrete-time single-type Galton--Watson branching random walk {Z n , ζ n } n≤ 0, where Z n is the population of the nth generation and ζ n is a collection of the ...
Hong, Jyy-I, Athreya, Krishna B.
openaire   +3 more sources

Phylodynamic inference for structured epidemiological models.

open access: yesPLoS Computational Biology, 2014
Coalescent theory is routinely used to estimate past population dynamics and demographic parameters from genealogies. While early work in coalescent theory only considered simple demographic models, advances in theory have allowed for increasingly ...
David A Rasmussen   +2 more
doaj   +1 more source

Population expansions shared among coexisting bacterial lineages are revealed by genetic evidence [PDF]

open access: yesPeerJ, 2014
Comparative population studies can help elucidate the influence of historical events upon current patterns of biodiversity among taxa that coexist in a given geographic area.
Morena Avitia   +5 more
doaj   +2 more sources

Anomalous networks under the multispecies coalescent: theory and prevalence

open access: yesJournal of Mathematical Biology, 2023
A bstract Reticulations in a phylogenetic network represent processes such as gene flow, admixture, recombination and hybrid speciation. Extending definitions from the tree setting, an anomalous network is one in which some ...
Cécile Ané   +4 more
openaire   +4 more sources

Population genetics: coalescence rate and demographic parameters inference

open access: yesPeer Community Journal, 2023
Inferring the demographic history of species is a great challenge in population genetics. This history is classically represented as a history of size changes, ignoring population structure.
Mazet, Olivier, Noûs, Camille
doaj   +1 more source

Colored Coalescent Theory

open access: yes, 2004
13 pages, 1 figures. To appear in the Proceedings of the Fifth International Conference on Dynamical Systems and Differential Equations, June 16-19, Pomona, CA ...
Tian, Jianjun, Lin, Xiao-Song
openaire   +3 more sources

Coalescence of Membrane Tethers: Experiments, Theory, and Applications [PDF]

open access: yesBiophysical Journal, 2005
Tethers are nanocylinders of lipid bilayer membrane, arising in situations ranging from micromanipulation experiments on synthetic vesicles to the formation of dynamic tubular networks in the Golgi apparatus. Relying on the extensive theoretical and experimental works aimed to understand the physics of individual tethers formation, we addressed the ...
Cuvelier, Damien   +3 more
openaire   +2 more sources

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