Registered Data

[CT055]

[00504] Solar Influence on Earth's Seismicity and Applications in Earthquake Forecasting

  • Session Date & Time : 5D (Aug.25, 15:30-17:10)
  • Type : Contributed Talk
  • Abstract : The scientific community is yet to find an effective method to forecast and avoid earthquake hazards, due to the problem complexity. After decades of debate, the Sun has again been recently brought forth as a potential precursor to earthquakes. This study aims to investigate the existence of such relationship from a dynamical systems perspective. Having confirmed the existence, we also show that Sun data can be included in forecasting models to improve forecasting accuracy.
  • Classification : 37N05, 86A15, 60G55, 37Hxx
  • Author(s) :
    • Matheus Henrique Junqueira Saldanha (University of Tsukuba)
    • Matheus Henrique Junqueira Saldanha (Graduate School of Science and Technology, University of Tsukuba)
    • Yoshito Hirata (Faculty of Engineering, Information and Systems, University of Tsukuba)

[00022] Interaction between sardines, anchovies and swordfish in moroccan coasts with high and low tide

  • Session Date & Time : 5D (Aug.25, 15:30-17:10)
  • Type : Contributed Talk
  • Abstract : The main objective of this work is the study of the effects of high tides and low tides on fishing effort, catches as well asprofits in a bioeconomic model of populations of Sardina pilchardus,Engraulis encrasicolus and Xiphias gladius in Moroc-can areas. To achieve this objective, we studied the stability of the equilibrium points of our biological model then we addedin our model the effect of the tides in the fishing effort which maximizes the profits of the fishermen under the constraintof the conservation of the biodiversity of these marine species using the generalized Nash equilibrium in the resolution ofthe bioeconomic model. As results, we were able to give the best fishing times according to the tides of each month of thewhole year which will allow us to achieve better yields. Hence the importance of introducing the effect of high and low tidesin bioeconomic models .
  • Classification : 37N25, 65P40, 37N40, 37N10, 92D25
  • Author(s) :
    • Nossaiba Baba (Hassan II University of Casablanca)
    • Imane Agmour (Hassan II University of Casablanca)
    • Youssef El Foutayeni (Hassan II University of Casablanca)
    • Naceur Achtaich (Hassan II University of Casablanca)

[00525] Global effect of COVID-19 disease dynamics on tertiary education system in developing countries

  • Session Date & Time : 5D (Aug.25, 15:30-17:10)
  • Type : Contributed Talk
  • Abstract : A mathematical model that describes the effect of COVID-19 dynamics on the student population of higher learning institutions was studied. Qualitative analyses were done on the model, and numerical simulations were used to evaluate the effects of personal protective, quarantine, treatment, and management measures to mitigate the community spread of COVID-19. Finally, a cost-effectiveness analysis was used to ascertain the most-effective and least expensive strategy required for preventing and controlling the spread of the pandemic.
  • Classification : 37N25, 37N35, 37N40, 37D10, 34C40
  • Author(s) :
    • John Olajide Akanni (Koladaisi University Ibadan, Oyo State, Nigeria)
    • Afeeze Abidemi (Federal University of Technology, Akure, Ondo State, Nigeria)
    • Oluwole Daniel Makinde (Faculty of Military Science, Stellenbosch University, South Africa)

[00526] Fractional-order Model of COVID-19 Dynamics in a Population with Limited Public Health Resources

  • Session Date & Time : 5D (Aug.25, 15:30-17:10)
  • Type : Contributed Talk
  • Abstract : In this research, we formulate and investigate a mathematical model via the Caputo derivative, which incorporates the impact of limited resources on COVID-19 transmission dynamics. Analyze the fractional model by computing the equilibrium points and primary reproduction number; also, use the Banach-fixed point theorem to prove the existence and uniqueness of the solution of the model. Our numerical results show that an increase in the recovery rate of hospitalization increases the infected individuals.
  • Classification : 37N25, 37N35, 37N40, 37D10, 34C40
  • Author(s) :
    • John Olajide Akanni (Koladaisi University Ibadan, Oyo State, Nigeria )
    • Fatmawati Fatmawati (Universitas Airlangga, Surabaya, Indonesia)

[00628] Resource Dependent Competition and Extinction

  • Session Date & Time : 5D (Aug.25, 15:30-17:10)
  • Type : Contributed Talk
  • Abstract : The classical theory of competitive exclusion does not consider the type of interaction between species. We create a new competition model in which the maximum population of a species is dependent on the availability of resources, or food supply, and competition is in the form of competition for these resources. We find this model always leads to stable coexistence and we investigate ways to bring about extinction.
  • Classification : 37N25, 92D25, 92-10
  • Author(s) :
    • Robert Garvey (University of Limerick)
    • Andrew Fowler (University of Limerick)