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Now showing items 11-20 of 117
Heavy Metals in sediments from Makupa and Port-Reitz creek systems: Kenyan Coast ,
(2003-01)
Copper, zinc, lead and cadmium heavy metals were determined in sediments from the Kenyan Coast. Sediment samples were obtained from Makupa and Port Reitz Creek systems. The samples were digested using concentrated hydrochloric ...
Flavonoids and Isoflavonoids with Antiplasmodial Activities from the Root Bark of Erythrina abyssinica
(University of Nairobi, 2003-07)
From the root bark of Erythrina abyssinica a new pterocarpene [3-hydroxy-9-methoxy-10-(3,3-dimethylallyl)pterocarpene] and a new isoflav-3-ene [7,4′-dihydroxy-2′,5′-dimethoxyisoflav-3-ene] were isolated. In addition, the ...
Towards an integrated management information system: A case of the University of Mauritius
(2003)
The University of Mauritius completed the setting up of a modern Local area network in September 1996. Having successfully implemented traditional services such as e-mail, Internet browsing and sharing of resources, the ...
Self-assembled thin films of semiconducting zinc (II) and terbium (III) chelates for optoelectronics applications
(2003)
Metallorganic thin films with semi-conducting properties, based on zinc chelation with 8,8'-dihydroxy-5,5'-bisquinoline were fabricated via a reactive self-assembly technique. An accelerated film growth was observed with ...
Practical implications of ionic strength effects on particle retention in thermal field-flow fractionation
(2003-01)
Modification of ionic strength of an aqueous or non-aqueous carrier solution can have profound effects on the particle retention behavior in thermal field-flow fractionation (ThFFF). These effects can be considered as ...
Two prenylated flavonoids from the stem bark of Erythrina burttii
(2003-06)
From the stem bark of Erythrina burttii, a new isoflavone, 5,2′,4′-trihydroxy-7-methoxy-6-(3-methylbut-2-enyl)isoflavone (trivial name, 7-O-methylluteone) and a new flavanone, 5,7-dihydroxy-4′-methoxy-3′-(3-methylbutadie ...
Effect Of Insecticide Use On Sunflower (helianthus Annus L.) Pollination And Yield, In Makueni District, Eastern Kenya
(University of Nairobi, 2003)
Sunflower variety 8998 and insecticides; Dimethoate and Karate were used to evaluate the effect of insecticide on
pollinators visit and consequently on sunflower yield. Effect of time of spray on seed set was also ...
Reduced Threshold Current in Bipolar Diode Lasers by Non-square Quantum Well Growth
(IOP SCIENCE, 2003)
By device simulation, it is shown that non-square quantum well growth (well shaping) provides a means for reducing the threshold current of bipolar quantum well diode lasers. Calculations of subband structure, optical ...
Benzoquinone derivatives of Myrsine africana and Maesa lanceolata
(2003-10)
The fruits of Myrsine africana afforded two new benzoquinone derivatives, methylvilangin and methylanhydrovilangin. On the other hand, from the fruits of Maesa lanceolata two more novel compounds; 2,5-dihydroxy-3-(nonade ...
Thermal conductivity of a kaolinite refractory: effect of a plant-derived organic binder
(2003)
The effect of corchorus olitorius derived binder on the effective thermal conductivity of a
kaolinite-based refractory was investigated. Strong dependence of (effective) thermal
conductivity of fired samples on the binder ...