Results 131 to 140 of about 2,891,099 (365)

Selection-Mutation dynamics with spatial dependence [PDF]

open access: yesarXiv, 2016
We study the limit of many small mutations of a model of population dynamics. The population is structured by phonological traits and is spatially inhomogeneous. The various sub-populations compete for the same nutrient which diffuses through the spatial environment.
arxiv  

Robust acute myeloid leukemia engraftment in humanized scaffolds using injectable biomaterials and intravenous xenotransplantation

open access: yesMolecular Oncology, EarlyView.
Patient‐derived xenografts (PDXs) can be improved by implantation of a humanized niche. We tested different biomaterials and approaches, and demonstrate that the combination of an injectable biomaterial for scaffold creation plus an intravenous route for acute myeloid leukemia (AML) xenotransplantation provide the most convenient and robust approach to
Daniel Busa   +13 more
wiley   +1 more source

Food composition of Ocellated Skink, Chalcides ocellatus (Forskal, 1775) (Squamata: Scincidae), from the Cyprus Island

open access: yesActa Herpetologica, 2013
We examined the food composition of the museum specimens of Chalcides ocellatus (Forskal, 1775) collected from Morphou (= Güzelyurt) and Gönyeli (Nicosia District, Northern Cyprus).
Kerim Çiçek, Bayram Göçmen
doaj   +1 more source

Mean Field Stochastic Adaptive Control [PDF]

open access: yesarXiv, 2012
For noncooperative games the mean field (MF) methodology provides decentralized strategies which yield Nash equilibria for large population systems in the asymptotic limit of an infinite (mass) population. The MF control laws use only the local information of each agent on its own state and own dynamical parameters, while the mass effect is calculated ...
arxiv  

Population dynamics in a random environment

open access: yes, 2000
We investigate the competition between barrier slowing down and proliferation induced superdiffusion in a model of population dynamics in a random force field. Numerical results in $d=1$ suggest that a new intermediate diffusion behaviour appears.
Bouchaud, Jean-Philippe   +2 more
core   +1 more source

Clinical significance of stratifying prostate cancer patients through specific circulating genes

open access: yesMolecular Oncology, EarlyView.
We tested a specific panel of genes representative of luminal, neuroendocrine and stem‐like cells in the blood of prostate cancer patients, showing predictive value from diagnosis to late stages of disease. This approach allows monitoring of treatment responses and outcomes at specific time points in trajectories.
Seta Derderian   +12 more
wiley   +1 more source

A Geometric Embedding Approach to Multiple Games and Multiple Populations [PDF]

open access: yesarXiv
This paper studies a meta-simplex concept and geometric embedding framework for multi-population replicator dynamics. Central results are two embedding theorems which constitute a formal reduction of multi-population replicator dynamics to single-population ones. In conjunction with a robust mathematical formalism, this provides a toolset for analyzing
arxiv  

Dynamics of Heterogeneous Populations and Communities and Evolution of Distributions [PDF]

open access: yesarXiv, 2005
Most population models assume that individuals within a given population are identical, that is, the fundamental role of variation is ignored. Inhomogeneous models of populations and communities allow for birth and death rates to vary among individuals; recently, theorems of existence and asymptotic of solutions of such models were investigated.
arxiv  

New Zealand regions, 1986-2001: Population dynamics [PDF]

open access: yes, 2005
New Zealand regions have markedly different population dynamics. Population change in a region is driven by three different factors: fertility, mortality and migration.
Baxendine, Sandra   +3 more
core   +1 more source

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