Results 11 to 20 of about 9,414,495 (118)
Clustered spots in the FitzHugh-Nagumo system [PDF]
, 2005 We construct {\bf clustered} spots for the following FitzHugh-Nagumo system: \[\left\{\begin{array}{l}\ep^2\Delta u +f(u)-\delta v =0\quad \mbox{in} \ \Om,\\[2mm]\Delta v+ u=0 \quad \mbox{in} \ \Om,\\[2mm] u= v =0 \quad\mbox{on} \ \partial \Om, \end{
Winter, M, Wei, J
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Using novel simplified models of excitation for analytic description of initiation propagation and blockage of excitation waves [PDF]
, 2006 We consider applications of a recently suggested new asymptotic approach to detailed ionic models of cardiac excitation. First, we describe a three-variable approximation for the excitation fronts in a detailed ionic model of human atrial kinetics.
Simitev, R., Biktashev, V.N., Idris, I.
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The Relationship Between Community Size and Iconicity in Sign Languages. [PDF]
Cogn SciAbstract Communication is harder in larger communities. Past research shows that this leads larger communities to create languages that are easier to learn and use. In particular, previous research suggests that spoken languages that are used by larger communities are more sound symbolic than spoken languages used by smaller communities, presumably ...
Lev-Ari S +5 more
europepmc +2 more sources
, 2023 We study the synchronization behavior of a class of identical FitzHugh-Nagumo-type oscillators under adaptive coupling. We describe the oscillators by a circuit model and we provide a sufficient synchronization condition that relies on the shape of the ...
Ralf Köhl (14225497) +3 more
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Standing Waves in the FitzHugh-Nagumo System and a Problem in Combinatorial Geometry [PDF]
, 2006 We show that there is a close relation between standing-wave solutions for the FitzHugh-Nagumo system \[ \Delta u +u(u-a)(1-u) - \delta v=0, \ \ \Delta v-\delta \gamma v + u=0 \ \ \mbox{in} \ R^N,\] \[ u, v \to 0 \ \mbox{as} \ |x| \to +\infty ...
Winter, M +3 more
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, 2020 This volume has arisen from a three-part, five-year study on language contact among multilingual sign language users, which has three strands: cross-signing, sign-switching, and sign-speaking. These phenomena are only sparsely documented so far, and thus
core +1 more source
Unraveling authoritarian reform decision‐making: A metacognitive–subcognitive model
American Journal of Political Science, EarlyView.Abstract Recent research indicates that state reforms in East and Southeast Asia have been predominantly top‐down and authoritarian‐led. However, this significant observation implicitly relies on important assumptions about authoritarian decision‐making behavior and psychology that remains understudied.
Eugene Yu Ji
wiley +1 more source
Proto‐Panic Modulation by Caffeine‐Proteinoid Complexes
Journal of Applied Polymer Science, Volume 143, Issue 41, November 5, 2026.Caffeine–proteinoid microspheres synthesized by thermal polymerization exhibit compartmentalized drug loading with encapsulation efficiencies of 61%–82% and triphasic release kinetics. Electrochemical monitoring reveals multi‐scale oscillatory dynamics consistent with chaotic and damped harmonic behavior, while Boolean logic operations demonstrate ...
Panagiotis Mougkogiannis +1 more
wiley +1 more source
Journal of Medical Radiation Sciences, Volume 73, Issue 3, Page 263-269, September 2026.This study investigated whether using a larger image matrix (1024 × 1024 pixels instead of 512 × 512) improves the visibility of tiny brain arteries on CT scans performed with standard 64‐slice scanners. While physical image quality measurements remained unchanged, the larger matrix provided finer digital sampling of blood vessel structures, resulting ...
Hokuto Nagumo +5 more
wiley +1 more source
Cooperative and Non‐Cooperative Solutions in a Dynamic Model of Forest Management
Natural Resource Modeling, Volume 39, Issue 3, August 2026.ABSTRACT This study develops a deterministic finite‐horizon bioeconomic control model linking forest biomass, biodiversity, cumulative harvesting pressure, and disturbance‐motivated expected biodiversity losses. Biodiversity is modeled as a productive state variable that feeds back into biomass growth, while cumulative harvesting pressure records the ...
Seyedalireza Seyedi +2 more
wiley +1 more source