Results 121 to 130 of about 41,354 (310)
Stability and Bifurcations in a Discrete-Time Eco-Evolutionary Logistic Model
MathematicsIn this paper I study a two-dimensional discrete-time evolutionary logistic-type model describing the coupled dynamics of population density and a continuously evolving trait.
Rafael Luís
doaj +1 more source
Saddles, Indeterminacy and Bifurcations in an Overlapping Generations Economy with a Renewable Resource [PDF]
We incorporate a renewable resource into an overlapping generations model with standard, well-behaved utility and constant returns to scale production functions. Besides being a factor of production the resource serves as a store of value.
Markku Ollikainen +2 more
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Advanced Science, EarlyView.Lanthanide‐doped polyurea microspheres are prepared via a facile one‐step precipitation polymerization. They exhibit strong hydrogen‐bonding and coordination interactions with excellent properties, including multicolor emission, high quantum yield (75.3%), remarkable stability, redispersibility, and biocompatibility.
Guiyu Zhang +9 more
wiley +1 more source
Bifurcation and Chaos in a Nonlinear Population Model with Delayed Nonlinear Interactions
MathematicsThis paper investigates the dynamic behavior of a second-order nonlinear rational difference equation modeling a population system with nonlinear interactions between current and previous population states.
Bashir Al-Hdaibat, A. Alameer
doaj +1 more source
Analysis of flow in bifurcations through transverse and multigate Doppler ultrasound
, 1991 Euromech Colloquium 286 on “Three dimensional blood flow in bifurcations. Computational and experimental analyses and clinical applications”, Kerkrade, The Netherlands, October 20-23 ...
PIGNOLI P. +4 more
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Advanced Science, EarlyView.Adult stem cell therapy requires more than high in vitro potency. This review proposes a systems framework in which cell‐intrinsic programs, instructive microenvironmental cues, and pre‐/post‐delivery engineering are co‐designed under standardized translational rules.
Soo‐Rim Kim +2 more
wiley +1 more source
, 2013 L’analyse des bifurcations dans les parcours professionnels des jeunes, pour mieux comprendre les processus biographiques et leurs cadres sociétaux. Certains moments de la vie sont beaucoup plus denses en changements que d’autres, et ils aboutissent à ...
Cathel Kornig
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Advanced Science, EarlyView.Co doping in Mn3Sn transforms the spin texture magnetic state from a coplanar noncollinear magnetic state into a noncoplanar one, resulting in a large topological Hall effect (THE) over a wide temperature range (2–300 K). The THE arises from a noncoplanar spin texture, driven by lattice distortion and enhanced out‐of‐plane Dzyaloshinskii ...
Mingqian Zhang +6 more
wiley +1 more source
Advances in Nonlinear AnalysisWe study stationary solutions of McKean–Vlasov equation on a high-dimensional sphere and other compact Riemannian manifolds. We extend the equivalence of the energetic problem formulation to the manifold setting and characterize critical points of the ...
Shalova Anna, Schlichting André
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, 2013 Nos recherches visent à analyser les bifurcations dans les parcours de vie des jeunes, pour mieux comprendre les processus biographiques. Dans le projet ANR Bipaje sont mobilisées des enquêtes longitudinales qualitatives et quantitatives auprès de jeunes
Cathel Kornig
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