Faculty of Science & Technology (FST): Recent submissions
Now showing items 4041-4060 of 4213
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Analysis of polychlorinated biphenyls (PCBS) in sediments and water in Nairobi river by gas chromatography
(University of NairobiChemistry, 2010)Industrial production of PCBs dates back to the period between 1929 and 1977, contributing to over 1.5 x 109 kilograms of the chemicals, a third of which has been released into the global environment. The production and ... -
Livestock diagnostic support system for rural pastoralist communities in Kenya: a prototype
(University of NairobiChemistry, 2011)The goal of this project was to develop a functional livestock diagnostic prototype to be used by pastoralist communities in arid and semi arid lands of Kenya. The prototype will be used by non-experts in the veterinary ... -
Phytochemical and antiplasmodial investigation of rhamnus prinoides and kniphofia foliosa
(University of NairobiChemistry, 2010)The dried and ground whole root of Rhamnus prinoides (Rhamnaceae) were exhaustively extracted using dichloromethane/methanol (1: 1) by cold percolation. The crude extract was subjected to chromatographic separations on ... -
Species Distribution Model: A Case Study of Brown Ear Tick (Rhipicephalus appendiculatus) in Kenya.
(School of mathematics, 2012-07)A major method for analyzing resource selection of species ,predicting and mapp1l1g habitat suitability is by use of a Geographic Information System(GIS).This research combines data relating to Rhipicephalus appendiculatus(Brown ... -
Properties and performance testing of biodiesel from a mixture of jatropha curcas and croton megalocarpus blends
(University of NairobiChemistry, 2010)The main objective of this project was to study biodiesel production from two local nonedible plant feedstocks namely Jatropha curcas and Croton megalocarpus. The oil from the above plant seeds were mechanically extracted ... -
Modeling time to sexual debut among Kenyan youths: The cox ph regression model approach
(School of mathematics, 2011-07)One in every five persons in the world is considered a 'youth' aged 15 - 24 and almost 85% live in developing countries. Youth, particularly those in developing countries, face increased exposure to risks associated with ... -
Potential of synthetically modified surface exudate flavonoids from polygonum senegalense as antiplasmodial principles
(University of Nairobi, 2010)Polygonum senegalense produces surface exudates composed mainly of chalcones, flavanones and a homoisoflavanone. Synthetic transformation of some of the chalcones to new entities has been achieved via environmentally ... -
A multivariate adaptive regression splines approach to predict the treament outcomes of tuberclosis patients in Kenya
(School of mathematics, 2012-07)Precise and accurate predictive models are extremely important in tuberculosis (TB) treatment outcome modeling. Tuberculosis (TB) treatment with patient supervision and support is one of the elements of global plan to ... -
Assessment of polychlorinated biphenyls (PCBS) in water and sediments from Ngong and Mathare rivers
(University of NairobiChemistry, 2011)For decades, Polychlorinated Biphenyls (PCBs) have been recognized as important and potentially harmful environmental contaminants. fhe intrinsic properties of PCBs, such as high environmental persistence, resistance to ... -
On the shift from defined benefit to defined contribution pension plans
(School of mathematics, 2012)Traditional DB pension plans are gradually losing their dominance in Kenya like many other occupational pension systems of many countries. Over the past few decades there has been a gradual shift towards DC pensions and, ... -
Phytochemical investigation of three erythrina species and tecleanobilis
(University of NairobiChemistry, 2012)The acetone extract of the root bark of Etythrina burttii showed in vitro antiplasmodial activity against the chloroquine sensitive (D6) and chloroquine resistant (W2) strains of Plasmodium [alcipanun with IC50 values ... -
Dyeadsorption characteristics by two unmodified lignocellulosic biomass materials (t.pedata & l.cylindrica) in batch and fixed-bed systems
(University of NairobiChemistry, 2010)Industrial dye wastewater is a major environmental concern ill developing countries. This study investigated the viability of two low cost adsorbents (L.cylindrica, T.pedata and their mixture) in the adsorption of color ... -
Assessment of the exposure of service station attendants to volatile organic compounds (VOCS) in Nairobi
(University of NairobiUniversity of Nairobi, 2011)Petroleum refueling emissions have increased relative to vehicular related emissions corresponding to the growth in motor vehicles. Although exposure to VOCs at service stations is hazardous to the workers and the ... -
Micro-crediting for low income earners
(School of mathematics, 2012-11)crediting is the extension of very small loans to impoverished borrowers who typically lack collateral, steady employment and a verifiable credit history, while a micro enterprise is a type of small business, often ... -
Groundwater potentials in Naivasha: case study Naivasha East area, Kenya
(University of NairobiGeology, 2012)The report describes an area of about 1square km located in the Rift valley part of Kenya and about 100Kms east of Nairobi city. It’s bounded by latitudes 36020’E to 36030’E and by longitudes 0030’S and 0050’S. The area ... -
Application of credit default swaps to commercial banks
(School of mathematics, 2012-11)Commercial banks contribute significantly to the growth ofa nation's economy. The profitability of commercial banks is largely attributed to the interest charged on loans they advance to their customers. If these loans ... -
Biosorption of organic dyes from aqueous solution using water hyacinth (eichhornia crassipes) from lake Victoria
(University of NairobiChemistry, 2011)This study addresses removal of methylene blue dye, and Congo red dye from aqueous solutions using dried Eichhornia crassipes (water hyacinth) biomass as a low-cost natural adsorbent. Batch experiments were conducted to ... -
Multivariate analysis for a split plot design with a covariate to determine the effects of different fertilizers levels for three potato varieties
(School of mathematics, 2012-07)Kenya's population is over forty million putting considerable pressure on production of food. This has led to continuous planting resulting to less fertile soils. The yield decreases season after season .This study seeks ... -
Assessment of the potential impacts of coal mning on water resources in Mui Basin, Kitui county in Eastern Kenya
(University of NairobiGeology, 2011)The venture into coal exploration has led to the discovery of over 240,000 tonnes in the Mui basin and hence plans to start mining are ongoing. However, the analyses of this coal by various researchers revealed that it ... -
Commutants and spectral properties of operators in hilbert spaces
(School of mathematics, 2012-09)This thesis is devoted to the study of commutants and spectral properties of operators in Hilbert spaces. This is done via the following operator equations: AB =λBA, where λ ∈ℂ, AX = XB and AXB = X. In the operator ...
