Results 11 to 20 of about 18,772,003 (107)
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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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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Smooth parametric surfaces and n-sided patches [PDF]
, 1989 The theory of 'geometric continuity' within the subject of CAGD is reviewed. In particular, we are concerned with how parametric surface patches for CAGD can be pieced together to form a smooth Ck surface.
Gregory, JA, Lau, VKH, Zhou, J
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Journal of Small Animal Practice, EarlyView.Objectives To evaluate the utility of preoperative feline renal parenchymal volume derived from computed tomography in predicting the serum creatinine concentration during the long‐term postoperative period. Materials and Methods In this retrospective clinical study, we included 13 client‐owned cats with normal kidneys and 24 cats with hydronephrosis ...
T. Nagumo +6 more
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
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
International Journal of Urology, Volume 33, Issue 5, May 2026.ABSTRACT Objectives To evaluate the prevalence of European Association of Urology‐defined combination and platinum eligibility at first‐line treatment initiation, and to assess their impact on conventional treatment sequence and overall survival in a real‐world Japanese cohort. Methods We retrospectively analyzed 148 patients with metastatic urothelial
Takashi Kawahara +10 more
wiley +1 more source
Are physiological oscillations physiological?
The Journal of Physiology, Volume 604, Issue 9, Page 3672-3693, 1 May 2026.Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
wiley +1 more source
Regularity conditions and Bernoulli properties of equilibrium states and $g$-measures [PDF]
, 2005 When T : X -> X is a one-sided topologically mixing subshift of finite type and {varphi} : X -> R is a continuous function, one can define the Ruelle operator L{varphi} : C(X) -> C(X) on the space C(X) of real-valued continuous functions on X.
Walters, Peter
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