Faculty of Science & Technology (FST): Recent submissions
Now showing items 3841-3860 of 4213
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Validation of satellite derived rainfal estimates over Kenya
(School of Physical Sciences, 2010-06)The aim of the study was to strengthen the monitoring of rainfall over Kenya by determining the validity of satellite derived rainfall estimates for use in Kenya. The study analyzed eleven years of monthly rainfall ... -
Development and calibration of an exposure- free bednet trap for the sampling of afrotropical malaria vectors
(Department of Zoology, 2004)Interventions aimed at reducing malaria vector populations through impregnated bednets, environmental management, residual indoor spraying etc., require monitoring of mosquitoes before, during and after the intervention. ... -
Experimental evaluation of entomopathogenic fungi for the biological control of philebotomine sand flies (diptera psychodidae)
(school of biological sciences, 2012-07)The leishmaniases are some of the WHO's neglected tropical diseases which pose threat to human life in both the New and Old World. They are mostly transmitted through the bite of infected sand flies. The disease affects ... -
Studies on the ecology of hive beetles in Kenya
(school of biological sciences, 2012-02)Although beekeeping has become an important economic venture in Kenya, and is being used to alleviate poverty and promote environmental conservation, very little information exists on arthropods associated with honey ... -
Biological and physico-chemical status of two wetlands in the Nairobi National Park, Kenya
(University of NairobiSchool of Biological Sciences, 2011)A wetland is an area of land whose soil is saturated with moisture either permanently or seasonally. Such areas may also be covered partially or completely by shallow pools of water. Wetlands include swamps, marshes, ... -
Assessment of current malaria transmission levels and potential beha vioural changes of people and adult mosquitoes in Emutete Western Kenya after increased use of insecticide treated nets (ITNs).
(University of NairobiSchool of Biological Sciences, 2011)A longitudinal study was conducted in ten houses involving the collection of indoor resting vector densitiesmonthly for eight months from September 2009 to Apri12010. Species were identified both morphologically and by ... -
Papilloma viruses in baboons and their linkage to the development of cervical cancer.
(University of NairobiSchool of Biological Sciences, 2011)Cervical cancer is one of the leading causes of cancer mortality in women worldwide, yet few suitable animal models currently exist for study of this disease. Virtually all cases of cervical cancer in women are caused ... -
Molecular cloning, sequencing and recombinant expression of a putative tick protective antigen from three ixodid ticks
(University of NairobiSchool of Biological Sciences, 2011)Ticks are arthropod vectors of pathogens impacting on human and animal health worldwide. Immunological control of pathogen vectors is an alternative control method that circumvents the drawbacks of chemical control. The ... -
Interactive effect on morphology, phenology and growth of the wild rice (oryza longistaminata) ecotypes and cultivated rice (oryza sativa) cultivars from the Coastal region of Kenya
(University of NairobiSchool of Biological Sciences, 2011)Rice is the third most important cereal crop in Kenya after maize and wheat. Among the major constraints of rice production in Kenya is wild rice which occur in or near the rice fields as weeds or in wild form. One of ... -
Associated impacts of common weeds on Bacillus thuringiensis (Rt) cotton: a case study of Mwea, Kenya
(University of NairobiSchool of Biological Sciences, 2011)Cotton (Gossypium hirstum L.) is an important cash crop in Kenya but its yields are low due to various constraints including weeds, pests and diseases. Cotton is especially sensitive to weed competition because it grows ... -
Assessment of differentiation of vegetation composition and structure of dry and moist intermediate zones in Imenti forest, Mt. Kenya ecosystem
(University of NairobiSchool of Biological Sciences, 2011)Forests in East Africa occur in lowland and upland areas with some recognized as worlds' biodiversity hotspots. The moist and dry intermediate forest types occur on the eastern side of Mt. Kenya forest. Mt. Kenya forest ... -
A study of energy use and saving opportunities at a tobacco green leaf threshing plant
(University of NairobiSchool of Biological Sciences, 2011)This study was carried out to analyze the energy use patterns at a Tobacco Green Leaf Threshing Plant (GLT) in order to understand energy consumption trends and patterns. The main aim of this was to identify energy ... -
The herbicidal potential of tagetes minuta and tagetes patula extracts and their residues on the germination and growth of some crop plants.
(University of NairobiSchool of Biological Sciences, 2011)The study was conducted to determine the herbicidal effect of Tagetes patula and Tagetes minuta on the germination and seedling growth of Eleusine coracana, Rorripa indica, Capsicumfrutescens and Phaseolus vulgaris. Seeds ... -
Created grassland diversity afrer 12years of mowing in Southern Sweden
(University of NairobiSchool of Biological Sciences, 2011)Understanding the relationship between soil fertility and species richness in grasslands is important for conservation of species rich grasslands particularly for habitat creation. In this study, species composition and ... -
Antischistosomal effect of selected plant extracts on swiss white mice infected with schistosoma mansoni
(school of biological sciences, 2012-11)Schistosomamansoni is responsible for causing schistosomiasis in humans; a major public health problem worldwide. It is estimated that 200 million people, mostly children are infected with schistosomes. Schistosomiasis ... -
Isolation, characterization and evaluation of potency of native bacillus thuringiensis against maize insect pests and aflatoxin producing fungi
(University of NairobiSchool of Biological Sciences, 2010)Bio-control of pests using Bacillus thuringiensis represents the most potential use of biological control agents to date. Among major constraints to maize production, safety and hence food sufficiency in Kenya is ... -
Characteristics And Suitability Of Using Kenya's Natural Pozzolana Rocks And Burnt- Agro -Residues As A Substitute To Ordinary Portland Cement Clinker.
(Department of Chemestry, School of Physical Sciences, University of Nairobi, 2005-05)The pozzolana materials considered in this research work were of two categories namely; natural and artificial. The natural pozzolana rocks were classified at the Department of Geology, t (UON) as Trachytic tuff (TT), ... -
Comparison of proteins of parasite stages of schistosoma mansoni and those of the tissues of the snail vector biomphalaria pfeifferi
(University of NairobiSchool of Biological Sciences, 2009)Antigen sharing between a parasite and its host is a stimulating facet of host-parasite relationship which is currently receiving considerable attention. The aim of the study was to investigate presence of common proteins ... -
Phytochemical Investigation Of Aloe Secundiflora For Antiplasmodial And Antimicrobial Activity
(Department of Chemestry, School of Physical Sciences, University of Nairobi, 2010)The stems of Aloe secundiflora was exhaustively extracted by percolation in CH2Ch-MeOH (1: 1) at room temperature. The extract showed significant antiplasmodial activity against the chloroquine-resistant (W2) strain of ... -
Transfecting Plasmodium berghei with the Plasmodium falciparum thiazole kinase gene
(University of NairobiSchool of Biological Sciences, 2010)As current antimalarial drugs become progressively ineffective due to parasite resistance there is need to develop and pursue new therapeutic strategies. Parasite-specific metabolic pathways promise to make an ideal ...
