Browsing School of Pure and Applied Sciences by Title
Now showing items 21-40 of 170
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Deep Learning Incorporated Bu¨hlmann Credibility in the Modified Lee–Carter Mortality Model
(Hindawi, 2023-03)This research study proposes the inclusion of randomness or an error term in the modified Lee–Carter model, which improves the traditional Lee–Carter model for modeling and forecasting mortality risk for years in the ... -
Defect-induced room temperature ferromagnetic properties of the Al-doped and undoped ZnO rod-like nanostructure
(Elsevier, 2017)In this work, electron paramagnetic resonance (EPR) experiment on undoped ZnO and Al doped ZnO (AZO) nanoparticles prepared by facile sol–gel method were investigated. The effects of the Al concentration on room temperature ... -
Deriving Penalized Splines For Estimation Of Time Varying Effects In Survival Data
(International Journal of Scientific & Technology Research, 2014)The major interests of survival analysis are either to compare the failure time distribution function or to assess the effects of covariate on survival via appropriate hazards regression models. Cox’s proportional hazards ... -
Deriving Some Estimators of Panel Data Regression Models with Individual Effects
(International Journal of Science and Research, 2012) -
A Design Unbiased Variance Estimator of the Systematic Sample Means
(American Journal of Theoretical and Applied Statistics, 2015) -
A Deterministic Model Of HIV Transmission Between Two Closed Patches Incorporating The Monod Equation
(International Institute for Science, Technology and Education (IISTE), 2019-06)Among other factors, migration has significantly contributed to the spread of HIV. Recent studies have revealed that new infections occur along major transport corridors and truck-drivers have overall higher prevalence ... -
Dicarbonyl (hexamethylene-1, 3, 5, 7-tetramine-κN1)(η5-pentamethylcyclopentadienyl) iron (II) tetrafluoridoborate
(International Union of Crystallography, 2012)In the title compound, [Fe(C10H15)(C6H12N4)(CO)2]BF4, the arrangement around the FeIIatom corresponds to a three-legged piano stool. The pentamethylcyclopentadienyl (Cp*) ligand occupies three coordination ... -
Dicarbonyl (η5-cyclopentadienyl)(hexamethylenetetramine-κN1) iron (II) tetrafluoridoborate
(International Union of Crystallography, 2012)In the structure of the title compound, [Fe(C5H5)(C6H12N4)-(CO)2]BF4, the arrangement around the FeIIatom corresponds to that of a three-legged piano stool. The cyclopenta-dienyl ligand occupies three coordination sites ... -
Diversity and Altitudinal Distribution of Understorey Corticolous Lichens in a Tropical Montane Forest in Kenya (East Africa).
(ResearchGate, 2017)Lichens constitute an important component of tropical forest biodiversity. This study inventoried corticolous lichens and examined their variation in various forest types with varying climatic conditions in Mt. Kenya, ... -
E-2-hexenal promotes susceptibility to Pseudomonas syringae by activating jasmonic acid pathways in Arabidopsis
(Frontiers in Plant Science, 2013-04)Green leaf volatiles (GLVs) are C6-molecules – alcohols, aldehydes, and esters – produced by plants upon herbivory or during pathogen infection. Exposure to this blend of volatiles induces defense-related responses in ... -
Effect of Mn doping on the structural and optical properties of sol-gel derived ZnO nanoparticles.
(Springer, 2011)Un-doped and Mn-doped ZnO nanoparticles were successfully synthesized in an ethanolic solution by using a sol-gel method. Material properties of the samples dependence on preparation conditions and Mn concentrations were ... -
Effect of processing temperature on the stability of parthenolide in acidified feverfew infusions
(Elsevier, 2013)The stability of parthenolide, the active ingredient in feverfew and a potential anti-inflammatory bioactive in beverages was evaluated at different pHs (2.9, 3.7, 4.6 and 6.0) during heat processing at 40–100°C. The ... -
The effect of purple tea extract activity on selected metabolic syndrome parameters in mice
(Meru University of Science and Technology, 2022-06)Metabolic syndrome (MetS) is a cluster of metabolic abnormalities. Prevalence of MetS is documented at 50% and 87.5% in Africa and Kenya respectively. It is managed by combining lifestyle modification and pharmacotherapy. ... -
Effect of Selected Metal Ions on the Mycelial Growth of Sclerotinia Sclerotiorum Isolated From Soybean Field in Rongai, Kenya
(International Journal of Chemistry and Materials Research, 2014)White mold caused by Sclerotinia sclerotiorum attacks a wide host range of broad-leafed plants which includes soybeans. The effect of twelve metal ions (Hg+2, Co+3, Ag+1, La+3, Cd+2, Cr+3, Cu+2, Zn+2, Mo+5, Sr+2, Sn+4 and ... -
Effect of Sulphate and Chloride Ingress on Selected Cements Mortar Prisms Immersed in Seawater and Leather Industry Effluent
(Hindawi, 2019)Cement structures are major capital investments globally. However, exposure of cement-based materials to aggressive media such as chloride- and sulphate-laden environments such as coastal areas affects their performance. ... -
Effects of Biocementation on some Properties of Cement-Based Materials Incorporating Bacillus Species Bacteria
(Taylor & Francis, 2019)There is a growing need in the construction industry to improve transfer and durability aspects of Portland pozzolana cement. Ureolytic bacteria have recently emerged as potential micro-organisms well known for precipitation ... -
Effects of Grafting Azacrown Ether on Thermal and Swelling Properties of Chitosan Films
(Multidisciplinary Digital Publishing Institute, 2017-11-17)The thermal and swelling properties of a series of azacrown ether-crosslinked chitosans prepared with varying molar amounts of N, N-diallyl-7, 13-diaza-1, 7, 10, 16-tetraoxa-dibenzo-18-crown-6 (molar equivalents ranging ... -
Effects of outliers on Estimation of Finite Population Totals
(International Journals of Multidisciplinary Research Academy, 2013)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 ... -
Effects of Sulfuric Acid Attack on Hydrated Calcined Clay Limestone Cement Mortars
(Taylor & Francis, 2020)The paper presents experimental findings on the performance of Limestone Calcined Clay Cement (LC3) in acidic media. LC3 was made by inter-grinding a blend of 50 % clinker with ground 30 % Fired Rejected Clay Bricks (FRCB), ... -
Effects of Temperature Dependent Viscosity and Viscous Dissipation on Fluid Flow Past a Moving Flat Plate
(International Journal of Innovative Science, Engineering & Technology (IJISET), 2016-12)In this study, the effects of temperature dependent viscosity and viscous dissipation on fluid flow over a moving flat isothermal plate have been investigated. A steady two dimensional laminar boundary layer flow of ...