Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 10-29 of 48
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Effect of Pollution Gradient on Sediment Bacterial Composition and Potential Pathogens in Urbanization-Impacted Streams Draining into Lake Victoria
(Jooust., 2022)Despite urban rivers/streams draining into Lake Victoria suffering from urbanization- linked anthropogenic pollution, little is known about their microbiome diversity and structure, or how they respond to intensive ... -
Estimation of Finite Population Mean in the Presence of Non-Response and Measurement Errors in Stratified Two Phase Sampling
(JOOUST, 2021)The problem of estimation of the population mean in the presence of response bias and social desirability bias is common in surveys. Researchers have proposed estimators of the population mean using auxiliary variables in ... -
Estimation of volatility using mean reverting European-logistic type option pricing model.
(JOOUST, 2016)Mean reversion is a mathematical concept that is frequently and widely used in stock investing, modeling interest rates and modeling commodities. In particular there is consensus that a commodity ... -
The Exponentially Modified Gaussian Function as a Tool for Deconvolution of Astroparticle Physics data.
(University of Siegen, 2016-03)An analysis of the mass composition of UHECRs based on the Xmax elongation rate (ER) within the energy range 1017.8−1020.0eV is performed, using Xmax data collected by the Pierre Auger Observatory from December 2004 to ... -
Extension of Stage Based Projection Matrices in Population Modeling of Invasive Tree Species
(JOOUST, 2021)Matrix models can be used to predict population dynamics and assess management options. Invasive trees proliferation within forest ecosystems have not been characterized, hence the need of population dynamics description ... -
Farmers willingness to pay and the sustainability of irrigated maize production in rural Kenya
(2017)This paper evaluated farmers willingness to pay for irrigated maize production using field level data collected through a cross sectional survey. The results showed that 78% of the farmers were willing to pay more than the ... -
Finite Difference Solution of (2+1) dimensional Sine-Gordon Equation: A Mathematical Model for Investigating the Long Josephson Junction
(JOOUST, 2017)The study considers the finite difference solution of (2+ 1) dimensional Sine-Gordon equation which is a mathematical model for investigating the long Josephson junction. Modeling of some physical phenomena and technological ... -
Gender Role Differentials in Ecotourism Planning.
(JOOUST, 2019)Gender role overtime, has emerged to be of integral importance in environmental resource management for ecotourism planning amongst various stakeholders. However, there are few gender studies that have been ... -
Genetic Characterization and Symbiotic Effeciency of Root Nodule Bacteria which Nodulate Bambara Groundnuts (Vigna Subterranea (L.) Verdc|) and Soyabeans (Glycine max (L.) Merril) fom Selected Sites in Lake Victoria Basin, Western Kenya
(JOOUST, 2015)Soybeans [Glycine max Merr.] and bambara groundnuts (Vigna subterranea L.Verdc) are nutritionally important legume crops capable of forming nitrogen (N) fixing symbiosis with a distinct group of soil bacteria, generally ... -
Influence of Strategic Drivers on Performance of Cultural Heritage Tourism in Western Kenya.
(JOOUST, 2018)The purpose of this study was to determine the influence of strategic drivers on performance of cultural heritage tourism in Western Kenya. The research objectives were: to analyze the influence of strategic ... -
Lie Symmetry Analysis of Fourth Order NonLinear Harmonic Differential Equation
(JOOUST, 2019)Lie group theory is a very practical and handy mathematical approach and it can be used to obtain solutions to diverse problems in applied mathematics. It's rich, very interesting and in broad sense a topic of active ... -
Lie Symmetry Analysis of Nonlinear Fourth Order Evolution Equation
(JOOUST, 2020)Problems involving nonlinear partial differential equations arise in various fields of science for instance in propagation of shallow water waves, fluid physics. quantum mechanics. chemical kinematics and other related ... -
Manipulative lowering of the water table during summer does not affect CO2 emissions and uptake in a minerotrophic fen
(BayCEER, 2009)We simulated the effect of prolonged summer drought by lowering the water table on three manipulation plots (D1-3) in a minerotrophic fen in South-eastern Germany in three subsequent years (2006-2008). Water table was ... -
Mathematical model for drug therapy in patients with diabetes mellitus.
(JOOUST, 2014)Diabetes Mellit us is a chronic illness that requires continuing medical care and ongoing patient self-management. education and support. to prevent acute complications and to reduce the risk of long-term ... -
Mathematical Modeling of 2d Heterogeneous Motor Vehicle Traffic Flow System
(JOOUST, 2021)Mathematical modeling of motor vehicle traffic flow systems and transportation processes taking into account of the dimensional properties of the roads, vehicle types, driver characteristics and flow properties leads to ... -
Mathematical Modeling of Airflow and Carbon Pollution by Vehicles on Roads with Ventilated Embankments
(JOOUST, 2019)Kenyan road transport currently accounts for about 78% of the total carbon emis¬sion in the country, a percentage that is lately and. steadily rising causing enormous scientific concern. Consequently, efficient road designs ... -
Modeling of Credit Scoring Risks for Commercial Banks
(JOOUST, 2021)Credit Scoring is the use of decision models and their techniques that aid lenders in advancing consumer credit. These models assess credit worthiness of applicants for a loan by forecasting their probability of default ... -
Modeling of jumps and mean reversion in the Kenyan interest rates.
(JOOUST, 2015)The Black-Scholes-Merton model of 1973 has been used and improved upon by various scholars and practitioners to model stock price, interest rates, options and other financial derivatives. Derived from this model are ... -
Morphometric, Phytochemical Screening and Antimicrobial Activity of Senna didymobotrya (Fresen.) H.S. Irwin and Barneby
(JOOUST, 2018-10)Herbal medicines have been used for many years and still are in widespread use in developing countries while the developed countries are rapidly adopting them as complementary alternative medicine. Senna didymobotrya ...