Results 1 to 10 of about 11,193,863 (298)

The interplay between multiple control mechanisms in a host–parasitoid system: a discrete-time stage-structured modelling approach

open access: yesJournal of Biological Dynamics, 2023
We propose a discrete-time host–parasitoid model with stage structure in both species. For this model, we establish conditions for the existence and global stability of the extinction and parasitoid-free equilibria as well as conditions for the existence
Azmy S. Ackleh   +2 more
doaj   +1 more source

Persistence for a Two-Stage Reaction-Diffusion System

open access: yesMathematics, 2020
In this article, we study how the rates of diffusion in a reaction-diffusion model for a stage structured population in a heterogeneous environment affect the model’s predictions of persistence or extinction for the population.
Robert Stephen Cantrell   +2 more
doaj   +1 more source

Stability and Hopf Bifurcation Analysis of a Stage-Structured Predator–Prey Model with Delay

open access: yesAxioms, 2022
In this work, a Lotka–Volterra type predator–prey system with time delay and stage structure for the predators is proposed and analyzed. By using the permanence theory for infinite dimensional system, we get that the system is permanent if some ...
Xueyong Zhou
doaj   +1 more source

Structure of Agency Formation Stages in Students: Consistency, Integrity, Formalization

open access: yesПсихологическая наука и образование, 2021
The article proposes a parallel-sequential formalized scheme for describing an ecopsychological model of agency formation through learning actions of students that includes seven stages.
Panov V.I., Kaptsov A.V.
doaj   +1 more source

Stability Analysis of a Stage-Structure Predator–Prey Model with Holling III Functional Response and Cannibalism

open access: yesAxioms, 2022
This paper considers the time taken for young predators to become adult predators as the delay and constructs a stage-structured predator–prey system with Holling III response and time delay.
Yufen Wei, Yu Li
doaj   +1 more source

Stability and Hopf bifurcation of a ratio-dependent predator-prey model with time delay and stage structure

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
In this paper, a ratio-dependent predator-prey model described by Holling type II functional response with time delay and stage structure for the prey is investigated.
Yan Song, Ziwei Li, Yue Du
doaj   +1 more source

A time-delayed predator-prey model with fear effect and stage structure

open access: yesXi'an Gongcheng Daxue xuebao, 2021
The stability of a predator-prey model with two-stage structure and fear effect was studied. This model incorporated maturation time delay of the prey, and a delay differential equation model was established.
Bairu LIU, Junli LIU, Pan LYU
doaj   +1 more source

Relaxation Analysis of Graphite Anode Materials after Charge-Discharge Cycles

open access: yesElectrochemistry, 2020
Relaxation analysis has been carried out on fresh and charge-discharge cycled graphites to evaluate the effect of cycle process on the relaxation behavior after lithium insertion.
Shigeomi TAKAI   +3 more
doaj   +1 more source

Dynamics of two-species delayed competitive stage-structured model described by differential-difference equations

open access: yesOpen Mathematics, 2019
Overf the last few years, by utilizing Mawhin’s continuation theorem of coincidence degree theory and Lyapunov functional, many scholars have been concerned with the global asymptotical stability of positive periodic solutions for the non-linear ...
Han Sufang   +4 more
doaj   +1 more source

Morphological Ontogeny and Ecology of a Common Peatland Mite, Nanhermannia coronata (Acari, Oribatida, Nanhermanniidae)

open access: yesAnimals, 2023
Nanhermannia coronata Berlese, 1913, is a common and abundant oribatid species in peatlands but can be easily mistaken for N. sellnicki Forsslund, 1958, as an adult. Therefore, the identity of adults of N.
Stanisław Seniczak, Anna Seniczak
doaj   +1 more source

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