Faculty of Science & Technology (FST): Recent submissions
Now showing items 2741-2760 of 4284
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A new isoflavone from stem bark of Millettia dura
(AJOLDepartment of Chemistry, University of Nairobi, 2003)A new isoflavone (7,3’-dimethoxy-4’,5’-methylenedioxyisoflavone) and three known isoflavones [isoerythrinin A 4’-(3-methylbut-2-enyl) ether, isojamaicin and nordurlettone] were isolated from the stem bark of Millettia dura ... -
Properties of constants for a quadrature formula to evaluate Bromwich’s integral.
(University of Nairobi.Department of Mathematics, University of Nairobi, 1976)Further analytical and empirical properties of the weights and abscissae of a quadrature formula for evaluating Bromwich's integral are described. These are then used to determine the parameters which ensure that a set of ... -
The first 9-hydroxyhomoisoflav anone, and antiplasmodial chalcones, from the aerial exudates of Polygonum senegalense
(2007)Phytochemical re-examination of the aerial exudates of Polygonum senegalense forma senegalense has resulted in the isolation and ch aracterization of a novel homoisoflavonoid, 5,7- dihydroxy-3-(hydroxy-phenyl-m ... -
A symmetrical Single Replicate Designs
(Department of Mathematics, 1998) -
Diterpenes from the leaf exudate of Psiadia punctulata
(Department of Chemistry, 1997)Two known diterpenes, (ent)-2-oxokaur-16-en-18,19-diol (psiadin) and (ent)-kaur-16-en-2α,18,19-triol, and three novel diterpenes, (ent)-16β,17-dihydroxykauran-20-oic acid, 2-oxotrachyloban-18,19-diol and trachyloban-2β,6β,19-triol ... -
Further flavonol Glycosides from Myrsine africana leaves
(Department of Chemistry, 1997-07) -
The Isolation and Identification of Trichothecene Metabolites from a Plant Pathogenic Strain of Myrothecium roridum
(Department of Chemistry, 1984) -
Towards Development of a Model for Expressing a set of E-learning Variables: The case of Wedusoft Electronic Learning Environment
(2006)Factors that influence the process of learning and students' attitudes towards them were analyzed and a model developed to tie these factors together. These factors are interrelated and they influence the process in different ... -
A New Flavonol Tetraglycoside from Myrsine Africana Leaves
(Department of Chemistry, 1996)A new flavonol glycoside, quercetin 3 - glucosyl (1′″ - 4″) rhamnoside - 7 -rhamnosyl (1′″ - 6″″) glucoside (1) together with known flavonol glycosides, quercetin 3 -rhamnoside (2), quercetin 3 - glucoside (3) and myricetin ... -
ICTs and Economic Transformation in Africa
(Sabinet Online Ltd 200, 2011)The relationship between information and communication technologies (ICTs) and well-being or poverty remains unclear and research to date has resulted in divergent conclusions. In Kenya, poverty reduction is unlikely to ... -
Trichodermadiene: a new trichothecene
(Department of Chemistry, 1980)A new trichothecene, trichodermadiene possessing a dienic ester side chain has been isolated and characterized. -
Ethnomedicial knowledge in traditional management of human ailments in Lake Victoria Basin,
(University of NairobiCollege of biological and physical science, 2010) -
Geochemistry of Sediments from the Romanche Fracture Zone, Equatorial Atlantic
(Department of Geology, University of Nairobi, 1990)A suite of sediment samples from the Romanche Fracture Zone in the equatorial Atlantic has been subjected to bulk and partition chemical and mineralogical analyses, together with radiometric dating in order to study the ... -
Insect antifeedant, growth-inhibiting and larvicidal compounds from Rapanea melanphloes (Myrsinaceae)
(Department of Chemistry, 2011)The already known benzoquinone, embelin (mixed with rapanone), and two new benzoquinones, myrsinone and myrsinaquinone, were isolated from the Myrsinaceae plant, Rapanea melanphloes (L), Mez. All the three compounds showed ... -
Antimalarial Activity of the Alkaloid Nitidine, isolated from a Kenyan Herbal remedy
(University of NairobiCollege of biological and physical science, 1995) -
New Dialkyl Benzoquinones from Fruits of Myrsine africana L and Maesa lanceolata, Forsk
(Department of Chemistry, 1996)Two new natural benzoquinones, 2,5-dihydroxy-3-methyl-6-undecyl-1,4-benzoquinone (1, muketanin) and 2-O-methyl-muketanin (2) have been isolated from fruits of Myrsine africana and Maesa lanceolata respectively. -
Phytochemical investigation of Kenyan Aloes for commercial preparations
(University of NairobiCollege of biological and physical science, 1992) -
Antimicrobial, antiparasitic and cytotoxic spermine alkaloids from Albizia schimperiana
(Department of Chemistry, 2009-06)Albizia schimperiana Oliv. (Leguminosae) is a tree distributed in the highland of Kenya, where it is used as a traditional medicine for the treatment of bacterial and parasitic infections, notably pneumonia and malaria, ... -
Success measures for information systems strategic planning
(2010)The implementation of Information Systems (IS) in the higher education learning institutions in Kenya has been increasing and seen varied results. Research has reported higher chances of IS failures in developing countries. ... -
Selection of plants with medicinal properties by wild chimpanzees
(University of NairobiCollege of biological and physical science, 1989)
