School of Biological, Physical, Mathematics & Actuarial Sciences: Recent submissions
Now showing items 141-160 of 246
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Mathematical Analysis of Carbon Pollution in Roads with Ventilated Embankments using Godunov FVM
(International Journal of Engineering and Mathematical Sciences, 2018-06)Kenyan Road transport currently accounts for about 78% of the total carbon emission in the country, a percentage that is lately and steadily rising causing enormous scientific concern. Consequently, efficient road design ... -
The effect of varying the capping agent of magnetic/luminescent Fe3O4–InP/ZnSe core–shell nanocomposite
(ELSEVIER, 2016-01)Magnetic–luminescent nanoparticles have shown great promise in various biomedical applications namely: contrast agents for magnetic resonance imaging, multifunctional drug carrier system, magnetic separation of cells, cell ... -
2-Hydroxy-4-Methoxybenzaldehyde: larvicidal structure-activity studies
(Chemical Society of Ethiopia, 2005)2-Hydroxy-4-methoxybenzaldehyde (1), a compound isolated from Mondia whytei (Hook) Skeels (Asclepiaceae) roots exhibited larvicidal activity (LD5022 mg/mL). A total of 18 other derivatives and closely related congeners ... -
Development, characterization and antimalarial efficacy of dihydroartemisinin loaded solid lipid nanoparticles
(ELSEVIER, 2016-04)Effective use of dihydroartemisinin (DHA) is limited by poor water-solubility, poor pharmacokinetic profile and unsatisfactory clinical outcome especially in monotherapy. To reduce such limitations, we reformulated DHA ... -
Preparation, characterization, and optimization of primaquine-loaded solid lipid nanoparticles
(PMC, 2014-08-11)Primaquine (PQ) is one of the most widely used antimalarial drugs and is the only available drug that combats the relapsing form of malaria. PQ use in higher doses is limited by severe tissue toxicity including hematological- ... -
Diagnosis and Management of Early-Onset Neonatal Sepsis (Eos) Among High-Risk Neonates in Kisii Teaching and Referral Hospital and Homabay County Referral Hospital, Western Kenya
(Clinical and Medical Case Reports, 2018)Neonatal sepsis (NS) is the third most common contributor to neonatal deaths worldwide, the majority of which occur within the first 72 hours of life (Early-onset sepsis [(EOS)]). Diagnosis of EOS is challenging due to ... -
Comparison of the ratio estimate to the local linear polynomial estimate of finite population totals
(IJESM, 2013-03)In this paper, attempt to study effects of extreme observations on two estimators of finite population total theoretically and by simulation is made. We compare the ratio estimate with the local linear polynomial estimate ... -
Effects of outliers on estimation of finite population totals
(2013-06)In this paper, attempt to study effects of outliers on two estimators of finite population total theoretically and by simulation is made. We compare the ratio estimate with the local linear polynomial estimate of finite ... -
Deterministic mathematical model for fish harvesting
(INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY, 2015)Differential equations have been used to create mathematical models of real world systems in which rates of change are involved, for example in the study of how population grows or shrinks. One of the earliest models by ... -
Socio-economic factors influencing the spread of drinking water diseases in rural Africa: case study of Bondo sub-county, Kenya
(IWA Publishing, 2015)Socio-economic and medical information on Bondo sub-county community was studied to help establish the relationship between the water quality challenges, community health and water rights conditions. Health challenges have ... -
Mathematical modelling of HIV infection
(IJMA, 2013)We formulate a deterministic mathematical model for the HIV/AIDS. -
Numerical solution of dynamic vibration equation, ܠሷൌ ܐ܋܍ܛ ܠ
(IJEMS, 2016)In this paper, we examine conservative autonomous dynamic vibration equation, f(x) = sech x which is time vibration of the displacement of a structure due to the internal forces, with no damping or external forcing. Numerical ... -
Dynamics of metal uptake and depuration in a parasitized cyprinid fish (Rastrineobola argentea)
(Elsevier, 2012)Infestation of fish by endoparasites may potentially influence metal uptake and elimination by the host. We quantified the metal uptake rate constant (ku) and efflux rate constants (ke) of radiolabeled Cd and Co in the ... -
Larviciding potency of water and ethanol extracts of Phytolacca dodecandra (L’ Herit) on Anopheles gambiae (Diptera: Culicidae)
(BioPublishe, 2015)Introduction: Plant extracts are an attractive target for search of effective malaria vector control agents. The reason for this is that they present a cost effective, target specific and bio-degradable insecticides. The ... -
Dynamics of metal uptake and depuration in a parasitized cyprinid fish (Rastrineobola argentea)
(Elsevier, 2012)Infestation of fish by endoparasites may potentially influence metal uptake and elimination by the host. We quantified the metal uptake rate constant (ku) and efflux rate constants (ke) of radiolabeled Cd and Co in the ... -
A comparison of CO2 fluxes via eddy covariance measurements with model predictions in a dominant subtropical forest ecosystem
(Copernicus Publications, 2009)CO2 fluxes were measured continuously for twelve months (2003) using eddy covariance technique at canopy layer in a dominant subtropical forest in South China. Our results showed that daytime maximum CO2 fluxes of the whole ... -
Responses of CO2 exchange and primary production of the ecosystem components to environmental changes in a mountain peatland
(Springer Science+Business Media, 2009)The complexity of natural ecological systems presents challenges for predicting the impact of global environmental changes on ecosystem structure and function. Grouping of plants into functional types, that is, groups of ... -
Analysing land cover and land use change in the Ruma National Park and surroundings in Kenya
(2017)The change of land use and land cover (LULC) is often driven by the growth of human population. In the Lambwe valley, Kenya, the most important reason for accelerated settlement in the last decades was the control of the ... -
Overcoming the Challenges of Estimating Water Use in Temperate, Mixed Deciduous Forest of S. Korea
(American Geophysical Union, 2009)About 80% of forests in Korea occur in mountainous regions and are composed of a rich diversity of mixed deciduous tree species. Mountains in this region receive more rainfall and act as fountains that supply fresh water ... -
Interactive influence of livestock grazing and manipulated rainfall on soil properties in a humid tropical savanna
(Springer Berlin Heidelberg, 2018)Purpose The effect of uncontrolled grazing and unpredictable rainfall pattern on future changes in soil properties and processes of savanna ecosystems is poorly understood. This study investigated how rainfall amount at ...