Faculty of Science & Technology (FST): Recent submissions
Now showing items 341-360 of 4088
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Characterization of chemical bath deposited nickel-doped cadmium sulphide thin films for solar cell applications.
(University of Nairobi, 2021)CdS films have received a lot of attention attributed to their high transparency, high absorption coefficient, high electron affinity, and outstanding photoconductive property. So far, the best performance of thin film ... -
Assessment of heavy metals and radioactivity of the soil around titanium mining in Kinondo area, Kwale county.
(University of Nairobi, 2021)Mining is the process which involves extraction of minerals and geological materials from the earth. This activity may have a detrimental effect on the environment hence impact health of animals and human. The concentrations ... -
Mitochondrial DNA variation of eastern African lion (panthera leo melanochaita) populations in Kenya.
(University of Nairobi, 2021)The Eastern African lion population forms a major part of the wildlife ecosystem with key contributions in the economy of the country through ecotourism, employment, cultural values and maintenance of biodiversity. Less ... -
Antibody responses to plasmodium falciparum 3d7 rh5 and eba-175 antigens in an acute and convalescent cohort of children from Junju sub-location in Kilifi, Kenya.
(University of Nairobi, 2020)Repeated exposure to malaria parasites broadens the repertoire of antigens recognized by the host immune system leading to acquisition of immunity to the disease. This immunity is inefficient in the absence of exposure as ... -
Induction of secondary metabolites by endophytic fungi inphaseolus vulgaris for liriomyza leafminer and fall armyworm management.
(University of Nairobi, 2021)The Liriomyza leafminer flies (LMF) are invasive pests that attack several horticultural crops one of which is the common bean Phaseolus vulgaris. Endophytic fungi have been shown to deter performance, oviposition and ... -
Rapid assessment of calcium carbide ripened bananas using machine-learning assisted laser Raman spectroscopy.
(University of Nairobi, 2021)Fruit ripening is usually a natural process in which fruits undergo various chemical and physical changes before they become palatable. New artificial ways of fruit ripening have been developed as a result of recent ... -
Molecular identification and evaluation of genetic diversity of Kenyan Dioscorea species using universal DNA barcodes of rbcL and matK regions.
(University of Nairobi, 2021)Yams (Dioscorea species) are tuber crops that are grown in tropical regions of Africa, the Caribbean, South America, Asia and South Pacific islands. In Kenya, yams are grown in western, coastal and central highland regions ... -
Survey and assessment of acaricide residue levels in home cattle sprays, soil and water from Ewaso river, Kajiado county, Kenya.
(University of Nairobi, 2021)Tick borne diseases are a major global concern for livestock productivity. These ectoparasites control involve use of acaricides from which have reported tick treatment failures, increased environmental contamination and ... -
Genetic variants associated with trypanotolerance trait in cattle.
(University of Nairobi, 2021)Animal trypanosomiasis (Nagana), a protozoan disease, is the source of huge productivity losses to small scale farmers in sub-Saharan Africa. Nagana affects wild animals, sheep, goats, camels and cattle reducing their ... -
Structural and electronic studies of selected titanium oxides and oxynitrides.
(University of Nairobi, 2021)Titanium dioxide (TiO2) is an abundant, chemically stable, non-toxic, and highly versatile material, with applications ranging from photovoltaics to catalysis. TiO2 rutile and anatase have band gaps of 3.0 eV and 3.2 eV, ... -
Evaluation of lead, cadmium, and chromium levels in automotive paints in Kenyan market.
(University of Nairobi, 2021)Heavy metals such as chromium, lead and cadmium are added to paint because of their beneficial properties. Some of the compounds of chromium and cadmium are added to paints to provide protection against corrosion and for ... -
Effect of annealing ambient on the structural, optical and electrical properties of tio2:ge thin films for photovoltaic application.
(University of Nairobi, 2021)Titanium dioxide is a wide bandgap semiconductor widely used in optoelectronics. Despite its potential application in photovoltaics, the overall efficiency of fabricated solar cells using TiO2 is usually low due to losses ... -
The expression of PF3D7_1146100; a novel, essential Plasmodium falciparum antigen, and its evaluation as a target of protective immunity to clinical malaria.
(University of Nairobi, 2021)The use of reverse vaccinology in vaccine candidate antigen discovery has led to identification of many Plasmodium falciparum novel antigens. Some of these antigens are essential for parasite survival and could be evaluated ... -
Detection of sugarcane mosaic virus and symptom expression of maize genotypes to infection by the virus in Kenya.
(University of Nairobi, 2021)Emergence of maize lethal necrotic (MLN) disease, in eastern Africa has threatened maize production in the region. The disease is caused by mixed infection of maize by Maize chlorotic mottle virus (MCMV) and a potyvirus, ... -
Fabrication and characterisation of NB:TIO2 thin film for hydrogen gas sensing application.
(University of Nairobi, 2021)A gas sensor is a selective device used in monitoring the presence or concentration level of a particular gas in the ambient atmosphere. Gas sensors operate on the principle which is anchored on any of the following three ... -
A model for the implementation of online learning in Kenyan public universities during the covid-19 pandemic.
(University of Nairobi, 2021)The advancement of information technology in the twenty-first century has profoundly changed educational systems across the world. With the restrictions on gathering and movement imposed by Government during the covid-19 ... -
Gut microbiome changes in response to shifts from rural to urban environments of the Turkana community in Kenya.
(University of Nairobi, 2021)The human gut microbiome has emerged as an important factor in many traits, including those associated with human health. Change in diversity and community composition of the gut microbiome is linked continuously to various ... -
Modelling Green Gram Production in Kenya Under the Current and Future Climates
(University of Nairobi, 2021)Green gram is one of the legumes considered suitable for cultivation in the Arid and Semi-Arid Lands (ASALs) of Kenya. However, the area that is currently suitable remains small due to inadequate knowledge on the variation ... -
Assessing Sustainability of Pastoralism Under a Changing Climate in Kajiado County, Kenya
(University of Nairobi, 2021)The study was conducted in Kajiado County to assess the sustainability of pastoralism under a changing climate. The specific objectives were to analyse trends in climate and livestock disease occurrence in Kajiado County, ... -
Morpho-agronomic, Genetic Diversity and Pythium Root Rot Resistance of South Western Kenya Common Beans (Phaseolus Vulgaris L.) Landraces
(University of Nairobi, 2021)Common bean (Phaseolus vulgaris L.) is one of the most important legume crops used as a source of protein, vitamins, and other beneficial nutrients among resource-poor populations in Kenya. Common bean landraces derived ...