Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 5-24 of 47
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Characterization of Continuity and Convergence of Fredholm Operators Perturbed by Orthogonal Idempotents in Banach Spaces
(JOOUST, 2021)Fredholm operators have been studied by several researchers for decades whereby they developed a comprehensive theory for integral equations and integral operators. A lot of properties of Fredholm operators have been given ... -
Characterization of Essential Numerical Rangers and Davis-Wielandt Shells of Hilbert Space Operators.
(JOOUST, 2019)The study of the Davis- Wielandt shell forms a very important generaralization of the numerical range in functional analysis. Hiroshi Nakazito and Mao-Ting Chien studied the connections between the q-numericol ... -
Characterization of Similarity Orbits of Invariant Subspaces of Norm-Attainable Operators.
(Jooust, 2019)Abstract The notion of similarity orbits(S(T)) of Hilbert space operators have been extensively investigated by many researchers such as Herrero, Fialkow and Had• win among others. Various ... -
Corporate Governance, Strategic Choices, Resource Availability and Performance of Universities in Kenya
(JOOUST, 2020)corporate governance remains a key area of strategic management and continues to attract tremendous attention from the academia and practitioners. A plethora of studies have exam med the relationship between ... -
Correlation Between the Degree of Alignment and Opto-Piezoelectric Properties of Cellulose Nanocrystals Fabricated From Water Hyacynth
(2023)Cellulose nanomaterials have recently continued to attract higher attention in the current research output, due to their extremely excellent mechanical, optical as well as electrical properties. Their sustainability coupled ... -
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 ...