Faculty of Sciences: Recent submissions
Now showing items 41-60 of 74
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Dynamical and optimal control analysis of a seasonal Trypanosoma brucei rhodesiense model.
(AIMS Press, 2020-02-27)The effects of seasonal variations on the epidemiology of Trypanosoma brucei rhodesiense disease is well documented. In particular, seasonal variations alter vector development rates and behaviour, thereby influencing the ... -
A fractional-order Trypanosoma brucei rhodesiense model with vector saturation and temperature dependent parameters.
(Springer Open, 2020-06-11)Temperature is one of the integral environmental drivers that strongly affect the distribution and density of tsetse fly population. Precisely, ectotherm performance measures, such as development rate, survival probability ... -
Fuzzy Modeling for the Dynamics of Alcohol-Related Health Risks with Changing Behaviors via Cultural Beliefs.
(HINDAWI, 2020-07-13)In this paper, we propose and analyze a fuzzy model for the health risk challenges associated with alcoholism. The fuzziness gets into the system by assuming uncertainty condition in the measure of influence of the risky ... -
Mathematical modeling of the dynamics of health risks associated with alcoholism in Tanzania: a literature review.
(SCIK Publishing Corporation, 2020-07-13)In this paper, a number of alcohol related studies have been reviewed in light of the strength and challenges of the models developed for their applicability in Tanzanian drinking context. The aim of this paper is to provide ... -
Significance of antiviral therapy and CTL-mediated immune response in containing hepatitis B and C virus infection.
(Elsevier B. V., 2021-01-12)Viral infections remain a major cause of deaths globally. Here, we focus on Hepatitis B and C viruses (HBV and HCV) infection dynamics in the liver and blood cells, taking into account non-cytotoxic and cytotoxic mediated ... -
A Mathematical Model of Contact Tracing during the 2014–2016 West African Ebola Outbreak.
(MDPI Open Access Journals, 2021-03-12)The 2014–2016 West African outbreak of Ebola Virus Disease (EVD) was the largest and most deadly to date. Contact tracing, following up those who may have been infected through contact with an infected individual to prevent ... -
Modelling the Control of the Impact of Fall Armyworm (Spodoptera frugiperda) Infestations on Maize Production.
(Hindawi, 2021-03-18)In this paper, we propose and analyse a stage-structured mathematical model for modelling the control of the impact of Fall Armyworm infestations on maize production. Preliminary analysis of the model in the vegetative and ... -
Modeling the Effect of HIV/AIDS Stigma on HIV Infection Dynamics in Kenya.
(Springer Link, 2021-04-05)Stigma toward people living with HIV/AIDS (PLWHA) has impeded the response to the disease across the world. Widespread stigma leads to poor adherence of pre- ventative measures while also causing PLWHA to avoid testing and ... -
Dynamics for a non-autonomous fall armyworm-maize interaction model with a saturation functional response
(AIMS Press, 2021-11-09)In this study, we present a non-autonomous model with a Holling type II functional response, to study the complex dynamics for fall armyworm-maize biomass interacting in a periodic environment. Understanding how seasonal ... -
A fractional-order fall armyworm-maize biomass model with naturally beneficial insects and optimal farming awareness.
(Elsevier, 2021-11-01)Maize remains an important food crop in Africa. However, the production of this crop, and consequently the livelihood of the growers are threatened by the invasion and widespread infestation of the fall armyworm which ... -
The influence of exogenously applied 2,4- dichlorophenoxyacetic acid on fruit drop and quality of navel oranges (Citrus sinensis L.)
(Academic Journals, 2009-05-18)rchard experiments were carried out in Botswana with the objective of evaluating the effect of 2,4- dichlorophenoxyacetic acid (2,4-D) on reducing premature fruit drop. Different concentration levels of the 2,4-D (8, 16 ... -
A mathematical model for fall armyworm management on maize biomass
(SpringerLink, 2012)Fall armyworm (Spodoptera frugiperda), a highly destructive and fast spreading agricultural pest native to North and South America, poses a real threat to global food security. In this paper, to explore the dynamics and ... -
The effects of vaccination and treatment on the spread of HIV/AIDS
(World Scientific Publishing, 2004)This study investigates the effects of vaccination and treatment on the spread of HIV/AIDS. The objectives are (i) to derive conditions for the success of vaccination and treatment programs and (ii) to derive threshold ... -
Unit groups of cube radical zero commutative completely primary finite rings
(Hindawi Publishing Corporation, 2005-07)A completely primary finite ring is a ring R with identity 1 = 0 whose subset of all its zero divisors forms the unique maximal ideal J. Let R be a commutative completely primary finite ring with the unique maximal ideal ... -
On Unit Groups of Completely Primary Finite Rings
(The Berkeley Electronic Press (bepress), 2008-01)Let R be a commutative completely primary finite ring with the unique maximal ideal J such that J3 = (0) and J2 6= (0): Then R⁄J ∼= GF(pr) and the characteristic of R is pk, where 1 ≤ k ≤ 3, for some prime p and positive ... -
On a Class of finite rings
(Taylor & Francis, 2007-06-27)In [7], Corbas determined all finite rings in which the product of any two zerodivisors is zero, and showed that they are of two types, one of characteristic p and the other of characteristic p2. The purpose of this paper ... -
Gross and microanatomical changes at the weight bearing points of ostrich induced by soil or concrete floor and implications for welfare.
(Botswana University of Agriculture and Natural resources, 2013)This study investigated the gross and microanatomical changes occurring at the weight bearing points on the ostrich body surface induced by rearing on soil floor or on concrete floor and the implications for the welfare ... -
Drought and grazing influence on Northern Chihuahuan desert rangelands, New Mexico.
(Botswana University of Agriculture and Natural resources, 2013)A short term cattle grazing trial was started in June 1992 in the Chihuahuan Desert in Southern New Mexico to study the influence of drought and grazing on plant responses. Paddocks were grazed in June and September each ... -
Responses of leaf parameters of Arabidopsis thaliana ecotypes to change in CO2 concentrations.
(Botswana University of Agriculture and Natural resources, 2013)An increase in anthropogenic generation of carbon dioxide (CO2) is one of the characteristic features of global climate change. How plants respond to this change has critical implications for the performance of both natural ... -
The challenges of Ilaje youth in combining education with artisanal fishing in Ondo State, Nigeria.
(Botswana University of Agriculture and Natural resources, 2013)The study examined how Ilajes in-school youth entrepreneurs combined their education with fishing activities in Ondo State. It examined their personal characteristics, period of involvement and educational activities. ...
