Results 51 to 60 of about 175,042 (331)

Research of urban agglomerations from the position of a synergetic approach

open access: yesČasopis Socìalʹno-Ekonomìčnoï Geografìï. Часопис соціально-економічної географії
The article examines urban agglomerations as complex subsystems of the socio-geosystem, characterized by a set of synergetic properties: openness, dynamism, flexibility, hierarchy, and emergence, among others.
Kateryna Kravchenko
doaj   +1 more source

Equilibrium Point Bifurcation and Singularity Analysis of HH Model with Constraint

open access: yesAbstract and Applied Analysis, 2014
We present the equilibrium point bifurcation and singularity analysis of HH model with constraints. We investigate the effect of constraints and parameters on the type of equilibrium point bifurcation.
Xinhe Zhu, Zhiqiang Wu
doaj   +1 more source

Empirical fixed point bifurcation analysis

open access: yesCoRR, 2018
Submitted to ICML2018 on 9 February ...
Gergo Bohner, Maneesh Sahani
openaire   +2 more sources

High‐Resolution and Real‐Time In Situ Generation of Cellular Spheroids by Laser‐Assisted Bioprinting for Guided Microvascularization

open access: yesAdvanced Functional Materials, EarlyView.
Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin   +9 more
wiley   +1 more source

Complex Bifurcation of the Two-Degree-of-Freedom Nonlinear Conveyor System

open access: yesShock and Vibration
A two-degree-of-freedom nonlinear moving belt system is investigated, which considers the possibility of two oscillators sticking or sliding on the moving belt simultaneously.
Songtao Li   +3 more
doaj   +1 more source

Spatiotemporal Tipping Induced by Turing Instability and Hopf Bifurcation in a Population Ecosystem Model with the Fear Factor

open access: yesComplexity, 2023
Population ecosystems can display the tipping points at which extinctions of species happens. To predict the appearance of tipping points and to understand their evolution mechanism are of uttermost importance for ecological balance.
Min Xiao   +4 more
doaj   +1 more source

Supramolecular Engineering of Fluid Pressure in Filamentous Hybrid Double Network Hydrogels for 3D Chondrocyte Culture

open access: yesAdvanced Healthcare Materials, EarlyView.
Inspired by the water‐rich and interconnected biopolymer networks of native load‐bearing tissues, we disclose a connectable design for a hybrid filamentous supramolecular and covalent double network hydrogel generated through in situ photopolymerization.
Ciqing Tong   +11 more
wiley   +1 more source

Some New Results on Charged Compact Boson Stars

open access: yes, 2017
In this work we present some new results obtained in a study of the phase diagram of charged compact boson stars in a theory involving a complex scalar field with a conical potential coupled to a U(1) gauge field and gravity.
Kahlen, Sarah   +4 more
core   +2 more sources

Hopf bifurcation from a turning point. [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1985
The classical Hopf bifurcation theorem proves the bifurcation of periodic solutions from a branch of steady states for ODE's (or some types of parabolic PDE's) depending on one real parameter if (i) this branch can be parameterized over this parameter set and (ii) if the dimension of the unstable manifold of the steady states changes at a certain ...
openaire   +2 more sources

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

open access: yesAdvanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang   +4 more
wiley   +1 more source

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