Results 51 to 60 of about 9,584 (214)
Coexistence of periods in a bisecting bifurcation
, 2011 The inner structure of the attractor appearing when the Varley-Gradwell-Hassell population model bifurcates from regular to chaotic behaviour is studied. By algebraic and geometric arguments the coexistence of a continuum of neutrally stable limit cycles
Botella-Soler, V., Oteo, J. A., Ros, J.
core +2 more sources
Kink-antikink asymmetry and impurity interactions in topological mechanical chains [PDF]
, 2016 We study the dynamical response of a diatomic periodic chain of rotors coupled by springs, whose unit cell breaks spatial inversion symmetry. In the continuum description, we derive a nonlinear field theory which admits topological kinks and antikinks as
Chen, Bryan Gin-ge +3 more
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International Journal of Eating Disorders, Volume 59, Issue 5, Page 940-951, May 2026.ABSTRACT Objective Adolescents with higher weight status (HWS; body mass index > 85th percentile adjusted for age and sex) are at greater risk of eating disorders (ED). This study examined factors associated with HWS adolescents' increased risk and how weight status interacts with other risk factors to influence ED onset. Method Australian adolescents (
Gabriela Tavella +5 more
wiley +1 more source
Discrete Dynamics in Nature and Society, 2022 When the supply and demand of commodities are out of equilibrium, the dynamic changes in supply and demand are mainly manifested in the dynamic fluctuation of commodity prices and the change of price will drive the change of supply and demand. This paper
Debao Gao
doaj +1 more source
Dynamic cobweb models with conformable fractional derivatives
Nonlinear Analysis: Hybrid Systems, 2019 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Martin Bohner, Veysel Fuat Hatipoğlu
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Ecology and Evolution, Volume 16, Issue 5, May 2026.We analysed various points of the counter‐adaptations of the spider egg sac pseudoparasitoid and spiders exhibiting active maternal care, utilising the ichneumonid Hidryta fusiventris and the wolf spider Pardosa lugubris. We observed that there is a time shift of approximately 1 month between the first egg sac of P.
Agata Kostro‐Ambroziak +6 more
wiley +1 more source
Simulation cobweb model of price formation with delayed supply [PDF]
Problemi Ekonomiki, 2013 The article presents a simulation cobweb model of price formation with delayed supply. It considers cases with absence and availability of random factors.
Yatsenko Roman Nikolaevich +1 more
doaj
A Comparison of Forecasting Mortality Models Using Resampling Methods
Mathematics, 2020 The accuracy of the predictions of age-specific probabilities of death is an essential objective for the insurance industry since it dramatically affects the proper valuation of their products.
David Atance, Ana Debón, Eliseo Navarro
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Nordic Journal of Botany, Volume 2026, Issue 5, May 2026.In this article, we describe a new fungal species, Leucocoprinus roseus, collected in Canal View Park, District Mandi Bahauddin, Punjab, Pakistan. The species is proposed as new based on detailed morphological observations and molecular phylogenetic analysis using nuclear ribosomal DNA internal transcribed spacer (nrITS) sequences.
Wajahat Akram +7 more
wiley +1 more source
Fractional-Order Delay Cobweb Model and Its Price Dynamics
International Journal of Differential EquationsThis study compares the price dynamics of a Caputo fractional order delay differential cobweb model with existing cobweb models that have conformable fractional derivatives, Caputo fractional derivatives, and nonsingular kernel fractional derivatives to ...
Martin Anokye +4 more
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