“aortoiliac bifurcation suitable for balloon-expandable stent deployment,” but does not define an absolute lumen diameter. The minimum recommended for the proximal neck is 18 mm and one may extrapolate that to the distal aortic neck also. This should accommodate the two 10-mm stents, however,...
(72) has a “Hopf bifurcation” at μ=0. In the mathematical theory of dynamical systems, the term bifurcation (or branching) is applied to any qualitative change in the solutions to the equations of motion that occurs as a parameter is varied past a critical value; see [190] and ...
Finally, by plotting Lyapunov spectrum, we showed that the oscillations that appear in the system are periodic or chaotic but not hyperchaotic. The results obtained in this paper can be extended to all systems of order 4.Arouna Njoyagrid.15596.3e0000000102380260School of Mathematical SciencesDublin ...
In a finite two-dimensi... F Barahona - 《Journal of Physics A Mathematical & General》 被引量: 964发表: 1982年 Quantum annealing with manufactured spins Many interesting but practically intractable problems can be reduced to that of finding the ground state of a system of interacting spins;...
It is believed that the neocortex has a modular structure with modules that are similar in overall design and operation but different in cell types and connectivity1. This conceptualizes the brain as a hierarchical network of subnetworks that interact with each other, and as a consequence, build...
Numerical integration revealed only bistability of steady states, as desired, but numerical bifurcation analysis reveals a sizeable region in the previously investigated subset of parameter space on which oscillatory behavior exists. 展开 关键词: Bifurcations Numerical analysis Reaction mechanisms Chemical ...
If concentration polarization occurs in the arterial system, these results suggest that lipoprotein transport into arterial wall may be influenced not only by arterial blood pressure and the properties of the arterial wall, but also by local hemodynamic conditions and by the relative as well as ...
Backward or subcritical bifurcation is usually considered an undesirable phenomenon in epidemiology since control measures require a reduction in R0 not below one but below a much smaller value. However, there are contexts for which a backward or subcritical bifurcation is not a bad thing; it can ...
Two different approaches were used: (i) calculating the co-occurrence rate of binding sites for two different TFs in the same CRE (co-occupancy); and (ii) estimating the percentage of binding sites for TFs located in different CREs but still associated with the same gene (co-regulation) (...
Although it has applications across several fields of study, bifurcation in the financial world usually describes either the breaking of a larger entity into smaller divisions. If a company decides to bifurcate and break into two separate companies,shareholdersin the initial company are given shares ...