Results 41 to 50 of about 9,926,522 (389)

Global stability for a class of functional differential equations with distributed delay and non-monotone bistable nonlinearity

open access: yesMathematical Biosciences and Engineering, 2020
The present work is devoted to the global stability analysis for a class of functional differential equations with distributed delay and non-monotone bistable nonlinearity. First, we characterize some subsets of attraction basins of equilibria.
Toshikazu Kuniya   +1 more
doaj   +1 more source

Global Stability of a Humoral Immunity COVID-19 Model with Logistic Growth and Delays

open access: yesMathematics, 2022
The mathematical modeling and analysis of within-host or between-host coronavirus disease 2019 (COVID-19) dynamics are considered robust tools to support scientific research.
Ahmed M. Elaiw   +3 more
doaj   +1 more source

How to safeguard soil health against silver nanoparticles through a microbial functional gene-based approach?

open access: yesEnvironment International
Silver nanoparticles (AgNPs), a major anthropogenic stressor, can threaten soil health by disrupting vital microbial processes critical to maintaining key soil functions such as nutrient cycling, organic matter decomposition, and soil structure formation.
Sandhya Mishra, Xiaodong Yang
doaj   +1 more source

GLOBAL STABILITY FOR A HIV/AIDS MODEL [PDF]

open access: yes, 2017
We investigate global stability properties of a HIV/AIDS population model with constant recruitment rate, mass action incidence, and variablepopulation size.
Cristiana J. Silva, Delfim F. M. Torres
semanticscholar   +1 more source

Global stability and uniform persistence of the reaction-convection-diffusion cholera epidemic model. [PDF]

open access: yesMathematical biosciences and engineering : MBE, 2016
We study the global stability issue of the reaction-convection-diffusion cholera epidemic PDE model and show that the basic reproduction number serves as a threshold parameter that predicts whether cholera will persist or become globally extinct ...
K. Yamazaki, Xueying Wang
semanticscholar   +1 more source

Drivers of toxic element accumulation in terrestrial ecosystems across elevational gradients

open access: yesEcological Indicators
Terrestrial ecosystems, account for approximately 31% of the global land area and play a significant role in the biogeochemical cycling of toxic elements.
Baba Imoro Musah, Jie Yang, Guorui Xu
doaj   +1 more source

Analysis of General Humoral Immunity HIV Dynamics Model with HAART and Distributed Delays

open access: yesMathematics, 2019
This paper deals with the study of an HIV dynamics model with two target cells, macrophages and CD4 + T cells and three categories of infected cells, short-lived, long-lived and latent in order to get better insights into HIV infection within the
A. M. Elaiw, E. Kh. Elnahary
doaj   +1 more source

Global stability analysis and stabilization of power amplifiers [PDF]

open access: yes2008 Microwaves, Radar and Remote Sensing Symposium, 2008
Power amplifiers often exhibit undesired behavior from certain input power value which cannot be predicted with a small-signal stability analysis. Among the commonly observed undesired phenomena are spurious oscillations, frequency divisions, hysteresis or chaos.
Suárez, Almudena   +2 more
openaire   +2 more sources

Kin recognition in plants-an ecological perspective: an overview of plant kin recognition under different resources, consequences and future challenges

open access: yesJournal of Plant Interactions
Kin recognition in plants is a debated topic, with mixed evidence on whether plants can distinguish kin from non-kin and adjust their behavior accordingly.
Jan Sher   +4 more
doaj   +1 more source

A Lyapunov function and global properties for SIR and SEIR epidemiological models with nonlinear incidence

open access: yesMathematical Biosciences and Engineering, 2004
Explicit Lyapunov functions for SIR and SEIR compartmentalepidemic models with nonlinear incidence of the form $\beta I^p S^q$for the case $p \leq 1$are constructed. Global stability of the models is thereby established.
Andrei Korobeinikov, Philip K. Maini
doaj   +1 more source

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