18 results for "Emmanuel Addai"
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Journal Article
Mathematical epidemiological modeling and analysis of monkeypox dynamism with non-pharmaceutical intervention using real data from United Kingdom
In this study, a mathematical model for studying the dynamics of monkeypox virus transmission with non-pharmaceutical intervention is created, examined, and simulated using real-time data. Positiveness, invariance, and boundedness of the solutions are thus examined as fundamental features of…
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Uniqueness Methods and Stability Analysis for Coupled Fractional Integro-Differential Equations via Fixed Point Theorems on Product Space
In this paper, we obtain unique solution and stability results for coupled fractional differential equations with p-Laplacian operator and Riemann–Stieltjes integral conditions that expand and improve the works of some of the literature. In order to obtain the existence and uniqueness of solutions…
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Multiple positive solutions for nonlinear high-order Riemann–Liouville fractional differential equations boundary value problems with p-Laplacian operator
Abstract In this paper, we study the existence of multiple positive solutions for boundary value problems of high-order Riemann–Liouville fractional differential equations involving the p-Laplacian operator. Not only new existence conclusions of two positive solutions are obtained by employing…
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Existence and monotone iteration of unique solution for tempered fractional differential equations Riemann–Stieltjes integral boundary value problems
Abstract The primary objective of this research paper is to investigate two kinds of high-order tempered fractional differential equations integral boundary value problems. By means of the mixed monotone operators fixed point theorems with perturbation and the increasing φ − ( h , σ ) $\varphi…
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Modelling the impact of vaccination and environmental transmission on the dynamics of monkeypox virus under Caputo operator
In this study, we examine the impact of vaccination and environmental transmission on the dynamics of the monkeypox. We formulate and analyze a mathematical model for the dynamics of monkeypox virus transmission under Caputo fractional order. We obtain the basic reproduction number, the conditions…
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Existence, uniqueness and parameter perturbation analysis results of a fractional integro-differential boundary problem
In the formulation, the existence, uniqueness and stability of solutions and parameter perturbation analysis to Riemann-Liouville fractional differential equations with integro-differential boundary conditions are discussed by the properties of Green’s function and cone theory. First, some theorems…
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Harnessing viral footprints in circulating free DNA (cfDNA) for early cancer detection: A focus on liquid‐biopsy‐based screening
Viral infections play a significant role in cancer development, making detecting viral signatures a promising approach for early cancer diagnosis. Circulating free DNA (cfDNA), released into the bloodstream by tumors and other cells, has emerged as a powerful biomarker for non‐invasive cancer…
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Journal Article
Fractional order epidemiological model of SARS-CoV-2 dynamism involving Alzheimer’s disease
In this paper, we study a Caputo–Fabrizio fractional order epidemiological model for the transmission dynamism of the severe acute respiratory syndrome coronavirus 2 pandemic and its relationship with Alzheimer’s disease. Alzheimer’s disease is incorporated into the model by evaluating its…
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Dynamics of Age-Structure Smoking Models with Government Intervention Coverage under Fractal-Fractional Order Derivatives
The rising tide of smoking-related diseases has irreparably damaged the health of both young and old people, according to the World Health Organization. This study explores the dynamics of the age-structure smoking model under fractal-fractional (F-F) derivatives with government intervention…
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Green Marketing Practices and Sustainability Performance of Manufacturing Firms: Evidence from Emerging Markets
This study investigates the relationship between green marketing practices and the sustainability performance of manufacturing firms in emerging markets. A self-administered questionnaire was used to collect data from 270 respondents, and the analysis was conducted using Smart PLS-SEM (version 4)…
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Journal Article
Fractal–fractional age-structure study of omicron SARS-CoV-2 variant transmission dynamics
This paper proposes a new fractal–fractional age-structure model for the omicron SARS-CoV-2 variant under the Caputo–Fabrizio fractional order derivative. Caputo–Fabrizio fractal–fractional order is particularly successful in modelling real-world phenomena due to its repeated memory effect and…
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Journal Article
Development and Validation of the Family Involvement in Graduate School (FIGS) Measure
This study involved development and validation of the Family Involvement in Graduate School measure, the first instrument to measure involvement of family in graduate students’ educational process. The measure was originally designed with six subscales. It was developed based on Hoover-Dempsey et…
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Journal Article
A nonlinear fractional epidemic model for the Marburg virus transmission with public health education
Abstract In this study, a deterministic model for the dynamics of Marburg virus transmission that incorporates the impact of public health education is being formulated and analyzed. The Caputo fractional-order derivative is used to extend the traditional integer model to a fractional-based model…
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Journal Article
Analysis of school bullying menace incorporating family education: a mathematical modeling approach
School bullying is a severe social problem that has an unfavorable impact on students development and behavior. Based on family education and students memory of having been bullied or witnessed bullying, this work established a mathematical model for analyzing school bullying dynamics. By employing…
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A large reverse-genetic screen identifies numerous regulators of testis nascent myotube collective cell migration and collective organ sculpting
Collective cell migration is critical for morphogenesis, homeostasis, and wound healing. During development migrating mesenchymal cells form tissues that shape some of the body’s organs. We have developed a powerful model for examining this, exploring how Drosophila testis nascent myotubes migrate…
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Journal Article Full text
A large reverse-genetic screen identifies numerous regulators of testis nascent myotube collective cell migration and collective organ sculpting
Collective cell migration is critical for morphogenesis, homeostasis, and wound healing. Migrating mesenchymal cells form tissues that shape the body's organs. We developed a powerful model, exploring how Drosophila nascent myotubes migrate onto the testis during pupal development, forming the…
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Journal Article Full text
Mathematical Modelling of Tuberculosis Outbreak in an East African Country Incorporating Vaccination and Treatment
In this paper, we develop a deterministic mathematical epidemic model for tuberculosis outbreaks in order to study the disease’s impact in a given population. We develop a qualitative analysis of the model by showing that the solution of the model is positive and bounded. The global stability…