Results 31 to 40 of about 4,237,260 (302)
Modelling and analysis of HIV‐TB co‐infection in a variable size population
Mathematical Modelling and Analysis, 2005 In this paper, a nonlinear mathematical model is proposed for the transmission dynamics of HIV and a curable TB pathogen within a population of varying size.
R. Naresh, A. Tripathi
doaj +1 more source
Electronics, 2019 This paper introduces a new chaotic system with two circles of equilibrium points. The dynamical properties of the proposed dynamical system are investigated through evaluating Lyapunov exponents, bifurcation diagram and multistability.
A. Sambas +7 more
semanticscholar +1 more source
On the complexities of modeling HIV/AIDS in Southern Africa
Mathematical Modelling and Analysis, 2008 In this paper problems associated with the modeling of HIV/AIDS in Southern Africa are presented. A mathematical model is presented to highlight the three major challenges of modeling HIV/AIDS, i.e condom use, vertical transmission and treatment.
Farai Nyabadza
doaj +1 more source
Study of Lagrange Points in the Earth–Moon System with Continuation Fractional Potential
Fractal and Fractional, 2022 In this work, the restricted three-body system is studied in the framework of the continuation fractional potential with its application on the Earth–Moon system.
Lata Kumari Bairwa +4 more
doaj +1 more source
Some Dynamic Aspects of a Sextic Galactic Potential in a Rotating Reference Frame
Applied Sciences, 2023 This work aims to explore some dynamic aspects of the problem of star motion that is impacted by the rotation of the galaxy, which we model as a bisymmetric potential based on a two-dimensional harmonic oscillator with sextic perturbations.
Munirah Alfadhli +2 more
doaj +1 more source
Basins of convergence of equilibrium points in the pseudo-Newtonian planar circular restricted three-body problem [PDF]
Astrophysics and Space Science, 2017 The Newton-Raphson basins of attraction, associated with the libration points (attractors), are revealed in the pseudo-Newtonian planar circular restricted three-body problem, where the primaries have equal masses.
E. Zotos
semanticscholar +1 more source
Homotopy Perturbation Method for Pneumonia–HIV Co-Infection
Foundations, 2022 It is well known that HIV (human immunodeficiency virus) weakens the immune system of individuals, resulting in risk of other infections, such as pneumonia. The most frequent viral pneumonia seen in individuals infected with HIV is cytomegalovirus (CMV).
Nita H. Shah, Nisha Sheoran
doaj +1 more source
Realization of the Triple Points of Equilibrium Hydrogen and Equilibrium Deuterium
Transactions of the Society of Instrument and Control Engineers, 2002 The triple points of equilibrium hydrogen and equilibrium deuterium have been realized using a calorimetric method and sealed cells, which include hydrogen (or deuterium) and a catalyst for the ortho-para equilibration. Anomalous increases on heat capacity curves of each substance, which markedly disturb melting curves of the triple point, are observed
Nakano, Tohru +2 more
openaire +2 more sources
Basins of Attraction of Equilibrium Points of Monotone Difference Equations
Sarajevo Journal of MathematicsWe investigate the global character of the difference equation of the form $$ x_{n+1} = f(x_n, x_{n-1},\ldots, x_{n-k+1}), \quadn=0,1, \ldots $$ with several equilibrium points, where $f$ is increasing in all its variables.
A. Brett, M. Kulenović
semanticscholar +1 more source
Modeling and Analyzing Homogeneous Tumor Growth under Virotherapy
Mathematics, 2023 We present a mathematical model based on ordinary differential equations to investigate the spatially homogeneous state of tumor growth under virotherapy.
Chayu Yang, Jin Wang
doaj +1 more source