Faculty of Science & Technology (FST): Recent submissions
Now showing items 3741-3760 of 4213
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Disaster recovery planning for business continuity in information systems - a survey of some organizationsin Nairobi, Kenya
(School of Computing and Informatics, 2002)The world we live in is full of uncertainties. A day that seemingly started well may spring surprises, some pleasant and others nasty. Much as we may not like them, disasters will happen. At the work place, they will ... -
The effect of manganese, nickel, copper, cobalt and zinc ions on the leaching of DDT in selected Kenyan soils.
(1999)The extent or leaching of 14C-p,p'-DDT dO\\I1a soil column under laboratory conditions meta Ions n , CL2I+ , C0-'1,- N-12+ ancI Zn+- on this Ieaching process were studied using different types of soils. Silty clay soil ... -
Identification of the mineral deficiencies in soils, forages And animal tissues as constraints to cattle production in Mount Elgon region of western kenya
(Depatment of Chemistry, University of Nairobi, 2002)A survey was conducted in which one hundred and eighty seven soil (187), 187 forage and nine hundred and twenty three (923) cattle blood samples were collected from thirty two (32) farms representing Bungoma, Trans Nzoia ... -
Assessment of internal exposures from ingestion of geophagic materials found in some parts of Kenya
(2005)An assessment of the radiological impact of Geophagia deliberate ingestion of soil. was carried out in this study Samples of the most widely used geophagic materials were collected from three regional locations in Kenya. ... -
Audit risk assesment framework using belief function model for Kenya national audit office (KENAO)
(School of Computing and Informatics, 2010)Program planning regarding the nature, extent, and timing of procedures is critical to audit efficiency and effectiveness. The prevailing paradigm in practice to accomplish this task is the Audit Risk Model. This model ... -
Growth and properties of sprayed iron disulfide (fes2) thin film
(1997)Recently, iron pyrite (FeS2) has been considered as a potential material for thin film solar cells and wet cells. Ir- che present work pyrite FeS2 films have been grown by spray pyrolysis followed by sulfidation. The ... -
Influence of age of wild glossina spp (diptera Glossinidae) on trypanosome species Distribution and host preference at Ngurumani kajiado district.
(Depatment of Chemistry, University of Nairobi, 2008) -
Energy dispersive x-ray fluorescence analysis of mineral elemental concentrations in bore hole core samples from kisii area
(1990)A total of fifty nine core samples at varying depths from nine different bore holes from Kisii area have been analysed using the energy dispersive X-ray fluorescence (EDXRFA) method with a cadmium-109 source and a ... -
Transparent conducting Sno2:F thin films for sis solar cells
(1992)Chemical vapour deposition has been used transparent conducting tin oxide thin films. useful for solar energy applications. to deposit The films are electrical properties have been investigated. Optical and Direct ... -
Identification of some of the host-derived attractant Compounds for adult tick, rhipicephalus appendiculatus from Cattle ears.
(Depatment of Chemistry, University of Nairobi, 1997)Control of ticks and tick-borne diseases is of paramount importance to the development and sustanability of the livestock industry in Africa. It is especially essential to control the brown ear tick, Rhipicephalus ... -
Assessment of heavy metal concentrations and radiation exposure due to naturally occuring radioactve materials in the limestone deposits of kitui south district - Kenya.
(2011)The heavy metals contents of Cu, Zn and Pb have been measured using Energy Dispersive XRay Fluorescence (EDXRF) and their pollution indexes calculated. The radiation background exposure at 1 m above the ground was measured ... -
Chemometrics -assisted laser induced breakdown spectroscopy of high background radiation area (HBRA) geothermal field matrices
(Department of Physics University of Nairobi, 2012)In this study, the utility of LIBS with chemometrics techniques namely PCA, PLS, ANNs and SIMCA has been investigated and demonstrated in performing trace quantitative and explorative analysis of High Background Radiation ... -
Development of a Chemometric Energy Dispersive X-Ray Fluorescence and Scattering Spectroscopy (EDXRFS) Method for Rapid Soil Quality Assessment
(Institute ofNucJear Science & Technology University of Nairobi, 2011)Sustainable land use and agricultural productivity especially in precision farming depends on soil quality management and thus necessitates soil quality assessment (SQA). This calls for simple, affordable and rapid but ... -
Mediated Dehalogenation of Organohalides at Both Rotating (Glassy Carbon and Pyrolytic Graphite) disk Electrodes and metmyoglobin films in Microemulsions
(2003)Myoglobin (Horse heart, metMb) in bicontinuous microemulsion, prepared from sodium dodecylsulfate (SDS) or cetyltrimethylammonium bromide (CT AB), tetradecane. pentanol and water exhibited adsorption peaks on carbon ... -
Stabilization of polyaniline films by Surface attachment of oxidizable Substrates
(Depatment of Chemistry, University of Nairobi, 1997)Cyclic Voltammetry was used to study the Electrochemical properties of PAminophenol on a Polyaniline modified carbon electrode surface. The resilts reveal reversible redox waves. The quinone derivatives formed frop ... -
Predictions of the field equations
(Department of Physics - University of Nairobi., 2001)Field equations are studied on the basis of Noether Currents. Solutions to these equations are investigated with special reference to the Big Bang theory, the Spherical Collapse and the Black Hole dynamics. The large ... -
Assessment of quality assurance compliance in the use of computed tomography machines in Kenyan hospitals
(2007)A total of eighteen Computed Tomography (CT) scanners at different hospitals in Kenya were surveyed to assess the state of quality management, image quality and patient dose. This study was conducted between the months ... -
An assessment of the thermo-physical properties of a grog modified Kenyan kaolinite refractory
(Department of Physics, University of Nairobi, 2001)This study has investigated the effect of the addition of grog, which is a pre fired material, on the thermo-physical properties and on the performance of a kaolinite clay based refractory material as a thermal ... -
Natural Pesticides: A case Study of Combination of Pyrethrins and Rotenoids and its Environmental Implications as a Strategy in Integrated Pest Management"
(Depatment of Chemistry, University of Nairobi, 2006) -
Optical, electrical and structural properties of zinc stannate (zn2sn04) thin films prepared by spray pyrolysis technique.
(Department of Physics University of Nairobi, 1997)Highly transparent and conducting Zn2Sn04 films have been prepared by spray pyrolysis technique. Films grown at a substrate temperature of 440°C exhibit the best optical and electrical properties. The microcrystals of ...
