Browsing Faculty of Science & Technology (FST) by Title
Now showing items 2168-2187 of 4283
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Investigations on the biology and control of the potato tuber moth, phthorimaea (gnorimoschema) operculella zeller. (lepidoptera:gelechiidae) in Kenya.
(Facult of Science, University of Nairobi, 1980) -
Investment by Micro and Small Enterprises in Electricity Generation: Opportunities and Challenges
(Department of Chemistry, 2001) -
Irrigation Scheme or mosquito hazard A case study in Mwea Irrigation Scheme
(1992)A survey of the mosquito fauna in the Mwea-Tebere Irrigation Scheme in Kenya was conducted between 1984 and 1985. Two genera, Anopheles and Culex were found indoors in large numbers. The major species were Anopheles gambiae ... -
Irritant Principles of Mezereon Family (thymeleaceae), New skin irritants and tumour promoters of the daphnane and 1, 2-alkyldaphnane type from Synaptolepis kirkii and S. Retusa.
(University of NairobiCollege of biological and physical science, 1988)Seventeen mostly new, skin irritant diterpene esters (DTE) of the daphnane and 1 alpha-alkyldaphnane types were isolated from roots of Synaptolepis kirkii and Synaptolepis retusa. The parent alcohols of the daphnane types ... -
Is the fast growth of an equatorial Micropterus salmoides population explained by high water temperature
(School of Biological Sciences, University of Nairobi, Nairobi, KenyaDepartment of Biology, University of Leicester, Leicester, UKCentre for Conservation Ecology and Environmental Change, School of Conservation Sciences, Bournemouth University, Poole, Dorset, UK, 2010)Marginal increment analysis of scales collected from the introduced Micropterus salmoides population of Lake Naivasha, Kenya revealed the formation of an annual growth check, validating their use to age individual fish. ... -
Isoflavanones and 3-Methoxyflavones from the Stem Bark of Platycelphium voense
(Department of Chemistry, Kyambogo University,Department of Chemistry, University of Nairobi,Department of Chemistry, University of Gothenburg,School of Pharmacy, University of Nairobi,, 2011)Platycelphium (Engl.) Wild (Leguminosae) is a monotypic genus that occurs in the drier parts of Eastern Africa (Gillett et 01., 1971). Prior to this report, the only phytochemical studies on Platycelphium voense describe ... -
Isoflavones and Rotenoids from the Leaves of Millettia oblata ssp. teitensis
(University of Nairobi, 2017): A new isoflavone, 8-prenylmilldrone (1), and four new rotenoids, oblarotenoids A−D (2−5), along with nine known compounds (6−14), were isolated from the CH2Cl2/CH3OH (1:1) extract of the leaves of Millettia oblata ... -
Isoflavones and rotenoids from the leaves of millettia oblata ssp. Teitensis.
(University of Nairobi, 2017)A new isoflavone, 8-prenylmilldrone (1), and four new rotenoids, oblarotenoids A-D (2-5), along with nine known compounds (6-14), were isolated from the CH2Cl2/CH3OH (1:1) extract of the leaves of Millettia oblata ssp. ... -
Isolation and characterization of a thermostable cellulase from bacillus licheniformis strain vic isolated from geothermal wells in the Kenyan rift valley
(University of Nairobi, 2016)Cellulolytic microorganisms such as fungi and bacteria are responsible for much of the cellulose degradation in soils. Despite the vast number of cellulase producers, there is a deficiency of microorganisms that can produce ... -
Isolation and characterization of an antifungal compound 5-hydroxy-7,4'-dimethoxyflavone from Combretum zeyheri
(University of Nairobi, 2015)BACKGROUND: Combretum zeyheri, belongs to the family Combretaceae and is one of the most popular herbal plants in tropical and subtropical countries. The leaves of Combretum zeyheri have been used as herbal medicine and ... -
Isolation and characterization of Bacillus thuringiensis from coastal intertidal brackish sediments and from farmlands in Machakos District Kenya
(2012)Bacillus thuringiensis (Bt) delta endotoxins represent the most successful use of biological control agents targeting crop pests to date. Studies have shown that Bt produces a wider range of toxins targeting ... -
Isolation and characterization of Bacillus thuringiensis strains from soil samples from kakamega and Machakos districts in Kenya
(2003)Twelve isolates of Bacillus thuringiensis were obtained from soil samples collected from farmers' fields in Kakamega and Machakos districts. Soil samples from Machakos yielded more B. thuringiensis isolates t han those ... -
Isolation and characterization of flagellates from rodents and canids in Masinga, Machakos District, Kenya.
(University of Nairobi,Department of Zoology, 1995-11)A total of 728 animals comprising of 633 rodents and 95 canids were examined for leishmanial parasites. Flagellates were isolated from 67 out of 111 (60.4%) Acomys subspinosus (spiny mouse), 12 out of 143 (8.4% ) Mastomys ... -
Isolation and characterization of polymeric and particulate components of acrylonitrile–butadiene–styrene (ABS) plastics by thermal field-flow fractionation
(University of NairobiField-Flow Fractionation Research Center, Department of Chemistry, University of Utah, Salt Lake CityAnalytical Sciences Center, Monsanto Corporate Research, Monsanto Company, 800 North Lindbergh BlvdDepartment of Chemistry, University of Nairobi, 1998)Thermal field-flow fractionation (ThFFF) is shown here to be capable of isolating the polymeric and rubber particulate components of acrylonitrile–butadiene–styrene (ABS) plastic in a simple analytical procedure. To ... -
Isolation and Characterization of Polymeric and Particulates of Acrylonitrile-Butadiene-Styrene (ABS) Plastics by Thermal FFF.
(Department of Chemistry, 1996)Thermal field-flow fractionation (ThFFF) is shown here to be capable of isolating the polymeric and rubber particulate components of acrylonitrile–butadiene–styrene (ABS) plastic in a simple analytical procedure. To ... -
Isolation and Characterization of the Major Anthraquinone Pigments from Rumex abysinnica". Planta medica, 50, 111
(Department of Chemistry, 1984-02) -
Isolation and characterization of the trichoverroids and new roridins and verrucarins
(Department of Chemistry, 1982) -
Isolation and characterization of vibrio cholerae phage from The enviromental waters of the lake victoria region of Kenya
(Biological sciences, University of Nairobi., 2013)The aim of this study was to isolate bacteriophages able to lyse Vibrio cholerae bacteria that cause cholera. Vibriophages have been successfully used to control the pathogen in the environment so as to minimise cholera ... -
The Isolation and Identification of Trichothecene Metabolites from a Plant Pathogenic Strain of Myrothecium roridum
(Department of Chemistry, 1984)