School of Science: Recent submissions
Now showing items 441-460 ya 463
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TAXONOMY AND NUTRIENT COMPOSITION OF SPECIES IN THE Vernonia hymenolepis A. RICH. COMPLEX IN TROPICAL EAST AFRICA
(2016-05-20)Three Stengelioid species forming a complex in the genus Vernonia Schreber. in Tropical East Africa viz., Vernonia calvoana (Hook.f.) Hook.f., Vernonia hymenolepis A. Rich. and Vernonia tolypophora Mattf. were investigated ... -
AN INVESTIGATION ON MAGNETOHYDRODYNAMICS FLUID FLOW BETWEEN TWO PARALLEL INFINITE PLATES SUBJECTED TO AN INCLINED MAGNETIC FIELD AND VARYING TEMPERATURES
(2016-05-20)Magnetohydrodynamics (MHD) is the study of electrically conducting fluids in the presence of magnetic fields. This study examined the motion of a viscous, electrically conducting and incompressible fluid flowing steadily ... -
CHARACTERISATION, ANTIFUNGAL AND MOSQUITOCIDAL ACTIVITIES OF MORMODICA FOETIDA LEAF EXTRACTS AND THEIR FORMULATION INTO DROP PILLS.
(2016-05-20)The upsurge in the prevalence of resistance to many synthetic antifungal agents and incidence of multidrug resistant mosquito-borne diseases has spurred scientists to research for new plant-based antifungal and mosquitocidal ... -
INVESTIGATION OF POLLUTANT LEVELS AND EFFICIENCY OF HEAVY
(2016-05-19)An increase in population initiating rapid industrialization has been found to consequently increase the effluents and domestic wastewater into the aquatic system. This has resulted in heavy metal pollution which has become ... -
ROTATING OPTICAL BEAMS: DIGITAL HOLOGRAPHIC GENERATION, PROPERTIES AND SELF-RECONSTRUCTION DYNAMICS
(2016-05-19)This thesis reports on an experimental investigation of rotating optical beams. Superpositions of higher-order Bessel beams with rotating intensity profiles were generated using a digital holographic experimental technique ... -
POLLUTANT LEVELS IN WASTE WATER FROM TANNERY EFFLUENT: A
(2016-05-19)Wastewater from leather processing industries is very complex and leads to water pollution if discharged before treatment, especially due to its high organic loading and chromium content. Over the past years, Nakuru Tanners ... -
EFFECT OF HYPERTENSION ON RENAL FUNCTIONS IN DIABETICS
(2016-05-19)Hypertension affects and progressively reduces the filtering function of the kidney leading to chronic kidney disease. There are many incidences of people with high blood pressure hence chronic kidney disease is expected ... -
SYNTHESIS, SPECTRAL AND ELECTROCHEMICAL STUDIES OF
(2016-05-19)In this thesis, the synthesis, characterization and electrochemical studies of monometallic and bimetallic complexes of schiff base ligands have been undertaken. Synthesis of bimetallic complexes initially involved preparation ... -
OPTICAL NOISE PERFORMANCE IN SMF-REACH AND SMF-REDUCED SLOPE FOR RAMAN FIBRE AMPLIFICATION USING DIFFERENT PUMPING TECHNIQUES
(2016-05-19)Signal amplification in optical fibres during transmission has become one of the techniques in improving capacity and reach in telecommunication networks. Fibre Raman amplifiers (FRAs) are currently being adopted in many ... -
ALGEBRA OF COUPLED ELECTRONS IN THE CO-EXISTENCE OF
(2016-05-19)Superconductivity is a phenomenon in which the d.c electrical resistance of a material vanishes completely and instantly rather than gradually when it is cooled below a certain temperature called the superconducting ... -
SPATIAL AND TEMPORAL VARIATIONS IN PHYSICO-CHEMICAL
(2016-05-19)Increased human activities have led to water pollution, especially metals and nutrients. Therefore, prudent management of aquatic environments require information on their quality status that can be estimated by monitoring ... -
EVALUATION OF CHILDHOOD MALARIA MANIFESTATIONS, DIAGNOSTIC AND MANAGEMENT PRACTICES IN WESTERN KENYA HIGHLANDS
(2016-05-19)Malaria remains a major killer in many parts of the world and challenges in accurate malaria diagnosis regrettably encourage widespread presumptive malaria treatment. The study conducted between September 2009 and May 2011 ... -
INTESTINAL GEOHELMINTH NEMATODES INFECTIONS IN LANGAS
(2016-05-19)The prevalence and intensity of intestinal geohelminth nematodes was assessed among school children in Langas Primary School in Eldoret Municipality. The main objective of the study was to determine the relationships between ... -
SYNTHESIS, CHARACTERIZATION OF ZnO NANO PHOTOCATALYSTS AND THEIR APPLICATION IN PHOTOREMEDIATION OF WASTE WATER
(2016-05-19)Water scarcity and its contamination with toxic metal ions and organic dyes represent a serious worldwide problem in the 21stcentury. Today’s world faces alarming challenges in the rising demand for drinking water and ... -
INVESTIGATION OF ETHREL GAMETOCIDE IN FINGER MILLET (Eleusine coracana, L. Gaertn) HYBRIDS THROUGH GENETIC ANALYSIS
(2016-05-19)Finger millet is a staple food crop of in Africa due to; desirable attributes like being highly nutritious, good grain storagability and strong cultural value. In Kenya, therefore, finger millet is on high demand for food, ... -
E-OPTIMAL DESIGNS FOR SECOND-DEGREE KRONECKER
(2016-05-19)Many products are formed by mixing together two or more ingredients. For example, in building construction, concrete is formed by mixing sand, water and cement. Many practical problems are associated with investigation ... -
FABRICATION AND CALIBRATION OF LOW COST CAPACITIVE SOIL
(2016-05-19)ABSTRACT Soil humidity is critical in crop production and its control is essential to water conservation. The knowledge of soil humidity to majority of farmers in Kenya is based on effects of weather on crops and soil ... -
INTEGRATION OF Allium cepa AQUEOUS EXTRACTS AND FARMYARD MANURES IN THE CONTROL OF Aphis fabae AND Tetranychus evansi INFESTING Solanum nigrum CULTIVARS IN WESTERN KENYA
(2016-05-19)The black nightshade, Solanum nigrum Linnaeus (Solanaceae), is a widely distributed tropical plant used as a nutritive vegetable and herbal medicine in East Africa. This plant expresses high levels of secondary metabolites ... -
COMMUNITY STRUCTURE AND PRIMARY PRODUCTIVITY OF
(2016-05-19)River impoundments transform lotic aquatic systems to lentic with changes in physical and chemical properties, biotic assemblage and productivity. Chebara reservoir is located at 3605E and 022S and situated within ... -
FIRST PRINCIPLES ELECTRONIC STRUCTURE CALCULATIONS OF BaF2 AND GENERATION OF PARAMETRIZED POTENTIAL FOR MOLECULAR DYNAMICS STUDY OF THE SUPERIONIC PROPERTIES OF c-BaF2
(2016-05-19)The electronic structure and defects of barium fluoride, BaF2, have been studied using the denstiy functional theory, DFT and density functional perturbation theory, DFPT. Lattice parameter of 6.10 Å was calculated comparable ...
