Browsing Faculty of Science & Technology (FST) by Title
Now showing items 1-20 of 4283
-
1-Power normal and 1-Power quasinormal operators
(2014)In this paper, 1-Power normal and 1-Power quasinormal operators are introduced. Amongst other results, it is proved that, 1-Power normal operators have translation invariant property and that, if any operator and its adjoint ... -
1-Tetralinyl as carboxamine-protecting group for asparagine and application to N-a-t-Butyloxycarbonyl (Boc) solid-phase pentide synthesis of oxytocin
(university of Nairobi, 2014)Oxytocin, a nonapeptide amide, was synthesized on a benzhydryl-resin using the Boc strategy. Benzyl group was used in the protection of sulfhydryl group of cysteine and tyrosine side-chain. Benzhydryl and tetralinyl ... -
1.5 - Water Quality Issues and Solutions in Africa
(Universty of Nairobi, 2014)Water is a critical resource whose quality, quantity, availability, and access are unevenly distributed in Africa. The increasing human population, food production, and industrialization add stress to the available water ... -
12,13-Deoxytrichoverrins from Myrothecium verrucaria
(Department of Chemistry, 1989-05)The structures of two new diastereoisomeric 12,13-deoxytrichothecenes have been established by a combination of nmr and mass spectroscopy. -
17. Evaluation of Immune Associated Cells in Lesions of L. Major Infected Vervet Monkeys (Cercopithecus aethiops)
(1995)Vervet monkeys were used to characterize immune associated cell types recruited into lesion sites as a result of experimental primary and secondary infections with Leishmania major. A heavy cellular infiltration consisting ... -
2 H/ 1 H composition of soil n-alkanes along two altitudinal transects in East Africa
(University of Nairobi, 2015) -
2-Butanone as a carbon dioxide mimic in attractant blends for the Afrotropical malaria mosquitoes Anopheles gambiae and Anopheles funestus.
(University of Nairobi, 2017)BACKGROUND: Most odour baits designed to attract host-seeking mosquitoes contain carbon dioxide (CO2), which enhances trap catches, given its role as a mosquito flight activator. However, the use of CO2 is expensive and ... -
3 – Rivers in Africa Are in Jeopardy
(Universty of Nairobi, 2013)Rivers are major sources of water in Africa. Increasing population and anthropogenic activities related to agriculture, industry and waste management make river-water pollution acute and unsafe for human consumption. Climate ... -
3-Hydroxyisoflavanones from the stem bark of Dalbergia melanoxylon: Isolation, antimycobacterial evaluation and molecular docking studies
(University of Nairobi, 2013-11)Two new 3-hydroxyisoflavanones, (S)-3,4′,5-trihydroxy-2′,7-dimethoxy-3′-prenylisoflavanone (trivial name kenusanone F 7-methyl ether) and (S)-3,5-dihydroxy-2′,7-dimethoxy-2″,2″-dimethylpyrano[5″,6″:3′,4′]isoflavanone ... -
3-Hydroxyisoflavanones From The Stem Bark Of Dalbergia Melanoxylon: Isolation, Antimycobacterial Evaluation And Molecular Docking Studies
(University of Nairobi, 2013)Two new 3-hydroxyisoflavanones, (S)-3,4′,5-trihydroxy-2′,7-dimethoxy-3′-prenylisoflavanone (trivial name kenusanone F 7-methyl ether) and (S)-3,5-dihydroxy-2′,7-dimethoxy-2″,2″-dimethylpyrano[5″,6″:3′,4′]isoflavanone ... -
3-Oxo-14α,15α-epoxyschizozygine: A new schizozygane indoline alkaloid from Schizozygia coffaeoides
(University of Nairobi, 2014-07)The stem bark extract of the Schizozygia coffaeoides (Apocynaceae) showed moderate antiplasmodial activity (IC50 = 8–12 μg/mL) against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium ... -
4′-Prenyloxyderrone from the stem bark of Millettia oblata ssp. teitensis and the antiplasmodial activities of isoflavones from some Millettia species
(University of Nairobi, 2014)The CH2Cl2/MeOH (1:1) extract of the stem bark of Millettia oblata ssp. teitensis showed antiplasmodial activity (IC50 = 10–12 μg/mL) against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium ... -
55 - The maintenance and repair of scientific equipment used in tertiary education: an icsu initiative
(University of Nairobi, 2014-06) -
6-Methoxycalpogonium Isoflavone A: A New Isoflavone from the Seed Pods of Millettia dura
(University of NairobiDepartment of Chemistry, University of Nairobi, 1997-08)From the seed pods of Millettia dura a new isoflavone has been isolated and identified as 3-(4-methoxyphenyl)-6-methoxy-8,8-dimethyl-4H,8H-benzo[1,2-b:3,4-b‘]dipyran-4-one (trivial name 6-methoxycalopogonium isoflavone A). ... -
6α-Hydroxy-α-toxicarol and (+)-tephrodin with antiplasmodial activities from Tephrosia species
(Elsevier, 2014)The CH2Cl2/MeOH (1:1) extract of the roots of Tephrosia villosa showed good antiplasmodial activity against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium falciparum with IC50 values ... -
7a-O-methyldeguelol, a modified rotenoid with an open ring-C, from the roots of Derris trifoliata
(Department of Chemistry, University of NairobiDepartment of Zoology, University of Nairobi,Institut für Chemie, Universität Potsdam, P.O. Box 601553, D-14415 Potsdam, Germany, 2005-03)From the acetone extract of the roots of Derris trifoliata an isoflavonoid derivative, named 7a-O-methyldeguelol, a modified rotenoid with an open ring-C, representing a new sub-class of isoflavonoids (the sub-class is ... -
8-Hydroxy-6-methylxanthone-1-carboxylic acid and 6',8-O-dimethylknipholone from the roots of Bulbine frutescens
(University of Nairobi, 2014)Phytochemical investigation of the dichloromethane/methanol (1:1) extract of the roots of Bulbine frutescens led to the isolation of a new xanthone, 8-hydroxy-6-methylxanthone-1-carboxylic acid (1) and a new phenylanthraquinone, ... -
8-Methoxyneorautenol and radical scavenging flavonoids from Erythrina abyssinica
(Department of Chemistry, University of NairobiDepartment of Chemistry, Makerere UniversityInstitut für Chemie, Universität Potsdam, Germany, 2009)A new pterocarpan (named 8-methoxyneorautenol) was isolated from the acetone extract of the root bark of Erythrina abyssinica. In addition, the known isoflavonoid derivatives eryvarin L, erycristagallin and shinpterocarpin ... -
Abdillahi, MM-, Tschanen, W. and Snook, RD Microwave-induced plasma emission spectrometric determination of bromide
(Department of Chemistry, 1985)