Results 71 to 80 of about 234,739 (311)

Spatial dilemmas of diffusible public goods

open access: yeseLife, 2013
The emergence of cooperation is a central question in evolutionary biology. Microorganisms often cooperate by producing a chemical resource (a public good) that benefits other cells.
Benjamin Allen   +2 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Local disalignment can promote coherent collective motion

open access: yesNew Journal of Physics, 2013
When particles move at a constant speed and have the tendency to align their directions of motion, ordered large-scale movement can emerge despite significant levels of noise.
M Meschede, O Hallatschek
doaj   +1 more source

Momentum accelerates evolutionary dynamics

open access: yesJournal of Physics: Complexity
Abstract We combine momentum from machine learning with evolutionary dynamics, where momentum can be viewed as a simple mechanism of intergenerational memory similar to epigenetic mechanisms. Using information divergences as Lyapunov functions, we show that momentum accelerates the convergence of evolutionary dynamics including the ...
Marc Harper, Joshua Safyan
openaire   +3 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

State-Policy Dynamics in Evolutionary Games [PDF]

open access: yes, 2018
International audienceStandard Evolutionary Game Theory framework is a useful tool to study large interacting systems and to understand the strategic behavior of individuals in such complex systems.
Hayel, Yezekael   +2 more
core   +1 more source

Animal models with group-specific additive genetic variances: extending genetic group models

open access: yesGenetics Selection Evolution, 2019
Background The animal model is a key tool in quantitative genetics and has been used extensively to estimate fundamental parameters, such as additive genetic variance or heritability.
Stefanie Muff   +4 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Survival of dominated strategies under evolutionary dynamics

open access: yes, 2007
We show that any evolutionary dynamic that satisfies three mild requirements— continuity, positive correlation, and innovation—does not eliminate strictly dominated strategies in all games.
Hofbauer, J., Sandholm, W.
core  

Amplification on Undirected Population Structures: Comets Beat Stars

open access: yesScientific Reports, 2017
The fixation probability is the probability that a new mutant introduced in a homogeneous population eventually takes over the entire population.
Andreas Pavlogiannis   +3 more
doaj   +1 more source

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