Browsing School of Pure and Applied Sciences by Issue Date
Now showing items 61-80 of 259
-
Modelling Credit Risk for Personal Loans Using Product-Limit Estimator
(International Journal of Financial Research, 2012-01-05)A product- limit approach was adopted to estimate time to default for male and female loan applicants. For each group, a sample of 250 applicants was observed for a 30 months. The life of the account is measured from the ... -
The Influence of Filter Mud Compost and Tithonia diversifolia Leaves on the Dissipation of Diuron in Soils within the Nzoia River Drainage Basin, Kenya
(Springer, 2012-05-22)The aim of the study was to evaluate the environmental impact of filter mud compost and Tithonia diversifoila amendments on the dissipation of diuron in sugarcane cultivated soils. Filter mud compost is the by-product of ... -
Modelling credit risk for personal loans: Cox Proportional Hazards Model Approach
(Pushpa Publishing House, 2012-08)A proportional hazards model approach was adopted to estimate risk of default for loan applicants. A sample of 500 applicants was observed for 36 months. The life of the account is measured from the month, it was opened ... -
Electronics of Conjugated Polymers (I): Polyaniline
(International Journal of ELECTROCHEMICAL SCIENCE, 2012-12)Conducting polymers have elicited much interest among researchers because of their reasonably good conductivity, stability, ease of preparation, affordability and redox properties compared to other organic compounds. In ... -
Genetic and morphological analyses indicate high population mixing in the endangered cichlid Alcolapia flock of East Africa
(2013)Alcolapia is a minor genus of small-bodied, polymorphic cichlids inhabiting the lagoons and hot springs surrounding the soda lakes Natron (largely in Tanzania) and Magadi (Kenya). Three Alcolapia species are present at ... -
A Study of Solutions to Euler Equations for a One Dimensional Unsteady Flow
(American Journal of Comp utational and App lied M athematics, 2013)In this paper we deal with the Euler equations for Isothermal gas. In analyzing the equations we obtain two real and distinct eigenvalues which enables us to determine the wave structure of the possible solutions to the ... -
A class of multi-phase traffic theories for microscopic,kinetic and continuum traffic models
(Computers and Mathematics with Applications, 2013)In the present paper are view and numerical comparison of a special class of multi-phase traffic theories based on microscopic, kinetic and macroscopic traffic models is given.Macroscopic traffic equations with multi-valued ... -
Bootstrap of Kernel Smoothing in Quantile Autoregression Process
(Journal of Statistical and Econometric Methods, 2013)The paper considers the problem of bootstrapping kernel estimator of conditional quantiles for time series, under independent and identically distributed errors, by mimicking the kernel smoothing in nonparametric autoregressive ... -
Application of extreme value theory in the estimation of value at risk in Kenyan stock market
(Int. J. Cur. Tr. Res, 2013)Most financial institutions have faced a lot of losses due to the fluctuations of commodities prices. Traditionally normal distribution was applied and could not capture rare events which caused enormous losses. The ... -
Effect of Occupation on the Levels of Lead in Human Blood in Kenya
(Chemistry and Materials Research, 2013)The occupation an individual is involved in exposes him or her to different levels of lead from the work environment. The main occupation of the study subjects included working in the petrol stations, ... -
Statistical techniques for modeling extreme price dynamics in the energy market
(IOP Publishing, 2013)Extreme events have large impact throughout the span of engineering, science and economics. This is because extreme events often lead to failure and losses due to the nature unobservable of extra ordinary occurrences. ... -
MATHEMATICAL MODELLING OF HIV INFECTION
(International Journal of Mathematical Archive, 2013)We formulate a deterministic mathematical model for the HIV/AIDS. -
MATHEMATICAL MODELLING OF HIV INFECTION
(2013)We formulate a deterministic mathematical model for the HIV/AIDS -
Magnetohydrodynamic (MHD) Free Convective Flow past an Infinite Vertical Porous Plate with Joule Heating
(2013)This work addresses the problem of Magnetohydrodynamic laminar unsteady flow of an incompressible electrically conducting fluid past an infinite vertical porous plate. It investigates how joule ... -
Comparison of lead levels with calcium, zinc and phosphorus levels in human blood
(European Centre for Research Training and Development UK, 2013)The purpose of the study was to determine how the levels of calcium, phosphorus and zinc affected the levels of lead in the human blood. The levels of lead, calcium, zinc and phosphorus in human blood of subjects from ... -
Effects of carbon amendment on in situ atrazine degradation and total microbial biomass
(ARPN Journal of Agricultural and Biological Science, 2013)This study elucidates the effects of carbon amendment on metabolic degradation of atrazine (6-chloro-N2-ethyl-N4-isopropyl-1,3,5triazine-2,4-diamine) and total microbial biomass in soil. Degradation of 14C-ring-labelled ... -
Analysis of Head Loss in Pipe System Components
(Mathematical Theory and Modeling, 2014)The problem under investigation is to determine the flow-field variables that is the total head which is the sum total of Elevation head, velocity head and pressure head instantaneous distributions as a function of distance ... -
Cross-Diffusion Effect on Mixed Convective Fluid Flow through Horizontal Annulus
(Mathematical Theory and Modeling, 2014)The unsteady mixed convective fluid flow through an annulus filled with a fluid-saturated porous medium is numerically investigated in this study in the presence of Cross-Diffusion effect and constant Heat Source. The flow ... -
Investigation of Pressure Distributions for a Finite Elasto-Hydrodynamic Journal Bearing Lubricated by Ferro Fluids with Couple Stresses
(2014)The performance of finite elastohydrodynamic journal bearings lubricated by ferrofluids with couple stresses has been studied. We derive a Reynolds equation that takes into account magneto elastohydrodynamics, by using the ... -
On the Estimation and Properties of Logistic Regression Parameters
(IOSR Journal, 2014)Logistic regression is widely used as a popular model for the analysis of binary data with the areas of applications including physical, biomedical and behavioral sciences. In this study, the logistic regression model, ...