Results 71 to 80 of about 308 (146)

© Hindawi Publishing Corp. SUBTHRESHOLD DOMAIN OF BISTABLE EQUILIBRIA FOR A MODEL OF HIV EPIDEMIOLOGY

, 2002
A homogeneous-mixing population model for HIV transmission, which incorpo-rates an anti-HIV preventive vaccine, is studied qualitatively. The local and global stability analysis of the associated equilibria of the model reveals that the model can have ...
S. M. Moghadas, B. D. Corbett, A. B. Gumel   +2 more
core  

Vulnerability at the peak: High-frequency climate volatility and honeybee production

Pollinators support ecosystems, food production and rural economies, yet their responses to environmental change are often studied through long-term trends rather than short-term instability.
Gabriella Buffa, Ginevra Virginia Lombardi, Giacomo Toscano, Leonardo Bambagioni, Federico Maglione, Maria Elvira Mancino, Edy Fantinato   +6 more
core   +1 more source

Plankton interaction model: Effect of prey refuge and harvesting

Computational and Mathematical Biophysics
Harmful algal blooms are one of the major threats to aquatic ecosystem. Some phytoplankton species produce toxins during algal bloom and affect other aquatic species as well as human beings.
Basak Poulomi, Tiwari Satish Kumar, Tripathi Jai Prakash, Tiwari Vandana, Mishra Ratnesh Kumar   +4 more
doaj   +1 more source

A mathematical study of the adrenocorticotropic hormone as a regulator of human gene expression in adrenal glands

Computational and Mathematical Biophysics
In this research, we have introduced compartments for asymptomatic and symptomatic individuals, along with reduced susceptibility, as key factors defining our investigation.
Manickam A., Jaison A. Benevatho, Lakshmi D., Singh Ram, Pravina C. T. Dora   +4 more
doaj   +1 more source

Non-local diffusion and pulse intervention in a faecal-oral model with moving infected fronts

Advances in Nonlinear Analysis
How individual dispersal patterns and human intervention behaviours affect the spread of infectious diseases constitutes a central problem in epidemiological research.
Zhou Qi, Pedersen Michael, Lin Zhigui
doaj   +1 more source

A non-standard numerical scheme for an alcohol-abuse model with induced-complications. [PDF]

Heliyon, 2023
Sandow EAB, Seidu B, Abagna S.
europepmc   +1 more source

New parameters estimation in an ordinary differential equation model for the multistep transformation of cancer cells using particle swarm optimization

Computational and Mathematical Biophysics
The research on cancer cells has proposed many hypotheses as a basic conceptual framework for understanding how normal cells transform into cancer cells. Cancer cells are assumed to undergo a multilevel mutation process from normal cells to cancer cells.
Kartono Agus, Lutfiah Lulu, Wahyudi Setyanto Tri, Tofany Novan, Subiyanto Subiyanto   +4 more
doaj   +1 more source

Modeling of the switching effect on two prey and one predator with the presence of Allee effects and refuge

Computational and Mathematical Biophysics
To examine the dynamics of a predator’s interaction with two prey species, this study develops a comprehensive mathematical model that accounts for ecological complexities, including the Allee effect, prey switching behavior, and prey refuge.
Kadhim Atheer Jawad, Elobaid Rafida M., Al-Saidi Nadia M. G., Jaber Ahamed Shawki   +3 more
doaj   +1 more source

Homogenization of Smoluchowski-type equations with transmission boundary conditions

Advanced Nonlinear Studies
In this work, we prove a two-scale homogenization result for a set of diffusion-coagulation Smoluchowski-type equations with transmission boundary conditions.
Franchi Bruno, Lorenzani Silvia
doaj   +1 more source

Mathematical modeling of contact tracing and stability analysis to inform its impact on disease outbreaks; an application to COVID-19

Infectious Disease Modelling
We develop a mathematical model to investigate the effect of contact tracing on containing epidemic outbreaks and slowing down the spread of transmissible diseases.
Mohamed Ladib, Aziz Ouhinou, Abdul-Aziz Yakubu   +2 more
doaj   +1 more source