School of Pure and Applied Sciences: Recent submissions
Now showing items 121-140 of 259
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Sediment Accumulation in Fish Ponds; Its Potential for Agricultural Use
(2014)ABSTRACT An experiment was conducted at the World Fish Center in Egypt, to describe and quantify sediment and nutrient accumulation in semi-intensive tilapia ponds, evaluate the effect of input type and stocking density ... -
De bijdrage van visvijvers aan de nutriënthuishouding op gemengde kleinschalige landbouwbedrijven
(2007)Vijvers kunnen een aanzienlijke bijdrage leveren aan de nutriëntenkringloop op gemenge landbouwbedrijven. Het integreren van water- en landgebonden productie in gemengde bedrijven kan leiden tot een verhoogde efficiëntie ... -
Smallholder Farmers’ Perceptions and Adaptations to Climate Change and Variability in Kitui County, Kenya
(OMICS International, 2017)The effects of climate change have highly challenged the productivity of the agricultural sector. The increasing temperatures and erratic rains, as well as diseases and pests have significantly reduced crop yields in the ... -
Impedimetry and microscopy of electrosynthetic poly(propylene thiophenoimine)-co-poly(3,4 ethylene dioxythiophene) dendritic star copolymer
(2011)The electrochemical impedance spectroscopy of generation 2 poly(propylene thiophenoimine)-co-poly(3,4 ethylene dioxythiophene) dendritic star copolymer (G2PPT-co-PEDOT) film was studied in LiClO4 solution. The results show ... -
Determination of Anthracene on Ag-Au Alloy Nanoparticles/Overoxidized-Polypyrrole Composite Modified Glassy Carbon Electrodes
(Molecular Diversity Preservation International, 2010)A novel electrochemical sensor for the detection of anthracene was prepared by modifying a glassy carbon electrode (GCE) with over-oxidized polypyrrole (PPyox) and Ag-Au (1:3) bimetallic nanoparticles (Ag-AuNPs). The ... -
Electrochemical Aptasensor for Endocrine Disrupting 17β-Estradiol Based on a Poly(3,4-ethylenedioxylthiopene)-Gold Nanocomposite Platform
(Molecular Diversity Preservation International, 2010)A simple and highly sensitive electrochemical DNA aptasensor with high affinity for endocrine disrupting 17β-estradiol, was developed. Poly(3,4-ethylenedioxylthiophene) (PEDOT) doped with gold nanoparticles (AuNPs) was ... -
Synthesis and characterization of poly (propylene imine) dendrimer–Polypyrrole conducting star copolymer
(Elsevier, 2010)A star copolymer based on poly(propylene imine) (PPI) dendrimer core (generations 1–4) and polypyrrole (PPy) shell was prepared. The synthesis procedure involved a condensation reaction between PPI surface primary amine ... -
Graphenated tantalum (IV) oxide and poly (4-styrene sulphonic acid)-doped polyaniline nanocomposite as cathode material in an electrochemical capacitor
(Pergamon, 2014)Nanostructured poly(4-styrene sulphonic acid) and tantalum (IV) oxide-doped polyaniline nanocomposite were synthesised and their electro-conductive properties were determined. The oxide was synthesized using a modified ... -
A silver Nanoparticle/Poly (8-Anilino-1-Naphthalene Sulphonic Acid) Bioelectrochemical Biosensor System for the Analytical Determination of Ethambutol
(2011)Ethambutol (2S, 2′S)-2, 2′-(ethane-1, 2-diyldiimino) dibutan-1-ol) is a first-line antitubercular drug effective against actively growing Mycobacterium tuberculosis. Resistance of the mycobacterium to ethambutol among ... -
Modulation of the interfacial electrochemistry of surfactant-functionalised polypyrrole chemical sensor systems
(Pergamon, 2011)The redox properties of electro-polymerized polypyrrole (Ppy) doped with different surfactants were studied in acid medium. It was found out that the addition of different surfactants affect the redox properties as evidenced ... -
On Local Linear Regression Estimation of Finite Population Totals in Model Based Surveys
(American Journal of Theoretical and Applied Statistics, 2018)In this paper, nonparametric regression is employed which provides an estimation of unknown finite population totals. A robust estimator of finite population totals in model based inference is constructed using the procedure ... -
On Derivation of the Probability of Occurrence of an Epidemic with Application to HIV/AIDS Spread Given Tuberculosis Co-infections in the Presence of Treatment
(Science Journal of Applied Mathematics and Statistics, 2017)Human Immunodeficiency Virus (HIV) and Mycobacterium Tuberculosis (TB) infections are two major world’s public health problems especially in developing countries. Worldwide, 13% of TB cases are estimated to be co-infected ... -
On Local Linear Regression Estimation of Finite Population Totals in Model Based Surveys
(American Journal of Theoretical and Applied Statistics, 2018) -
MATHEMATICAL MODELLING OF HIV INFECTION
(International Journal of Mathematical Archive, 2013)We formulate a deterministic mathematical model for the HIV/AIDS. -
ON LOCAL LINEAR REGRESSION ESTIMATION IN SAMPLING SURVEYS
(Far East Journal of Theoretical Statistics, 2017)A model based survey is employed to estimate the unknown values of the survey variable, using the local linear regression approach. In particular, a local linear regression estimator in model based surveys is studied. ... -
Mathematical Model for DetectingDiabetes in the Blood
(2011)This study presents a new mathematical model for Blood Glucose Regulatory System(BGRS) which includes epinephrine as a third variable in the form, ˙ Y = AY, and whose solution has been analyzed for equilibrium and stability ... -
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 ... -
PREGNANCY OUTCOME IN WOMEN PRESENTING WITH OBSTRUCTED LABOUR IN A RURAL HOSPITAL, KENYA
(2015)Background: Obstructed labour still remains a life – threatening catastrophe all over the world but mostly in the developing countries. This, entirely preventable labour complication carrying a very high maternal and ... -
Participatory investigations of bovine trypanosomiasis in Tana River District, Kenya
(Blackwell Science Ltd, 2002-04-04)Participatory research on bovine trypanosomiasis was conducted with Orma pastoralists in Tana River District, Kenya. The use of participatory methods to understand local perceptions of disease signs, disease causes, disease ...
