Faculty of Science & Technology (FST): Recent submissions
Now showing items 561-580 of 4283
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Carbon stable isotopes suggest that hippopotamus-vectored nutrients subsidize aquatic consumers in an East African river
(University of Nairobi, 2015)The common hippopotamus, Hippopotamus amphibius , transports millions of tons of organic matter annually from its terrestrial feeding grounds into aquatic habitats. We evaluated whether carbon stable isotopes ( d 13 C) ... -
Flavonoids from Tephrosia aequilata
(University of Nairobi, 2002-06)From the roots of the plant Tephrosia aequilata Baker, five flavonoids were isolated of which, 3,4:8,9-dimethylenedioxypterocarpan is reported for the first time. Its structure and those of the already known flavonoids ... -
An investigation of buoyancy driven natural convection in a cylindrical enclosure.
(University of Nairobi, 2015-04)An investigation of heat transfer was done in a cylindrical enclosure. The effects of varying Reynolds Number, Prandtl number, Froude number, and Euler number on the temperature and velocity was investigated. In the study, ... -
Zhang’s second order traffic flow model and its application to the Kisii kisumu highway within Kisii county
(University of Nairobi, 2015-04)Most highways experience traffic jams as a result of various reasons and hence need for a practical solution. Traffic flow m odels play an important role in both today’s ... -
Equilibrium and kinetics studies for the adsorption of aqueous Cu (II) ions onto mangroves biomass
(University of Nairobi, 2015-08)In this study, adsorption of copper from aqueous solutions was investigated using mangrove biomass from the Kenyan Coast. The efficacy of mangrove biomass on the removal of copper (II) ions from aqueous solutions was ... -
Time for in situ renaissance.
(University of Nairobi, 2015-08-14) -
Survey of nematode destroying fungi from selected vegetable growing areas in Kenya.
(University of Nairobi, 2015-07-02)Plant parasitic nematodes cause up-to 5% yield los ses to a wide range of economic crops. In Kenya veg etables yield loss attributed to plant parasitic nematodes is estimated to 80%. Over the years, ... -
The kinetic properties of nad-linked malic enzyme from muscle of the dung beetle Catharsius
(University of Nairobi, 1982)Nad-linked malic enzyme (L-malate: NAD+ oxidoreductase (decarboxylating), E.C. 1.1.1.38) was purified from muscle of the dung beetle Catharsius to a specific activity of 28 μmol/min/mg of protein. Its molecular weight was ... -
Temperature-dependent feeding interactions between two invasive fishes competing through interference and exploitation
(University of Nairobi, 2012-06)Context-dependent ecological interactions between invasive species are important in determining the outcomes of their introductions. The consequences of competitive interactions between the Nile tilapia Oreochromis niloticus ... -
Gaining insight into food webs reconstructed by the inverse method
(University of Nairobi, 2006-04)The use of the inverse method to analyze flow patterns of organic components in ecological systems has had wide application in ecological modeling. Through this approach, an infinite number of food web flows describing the ... -
Synthesis, physical and electrochemical characterization of mono- and heterobinuclear m -functionalized iron(III) Schiff base complexes
(University of Nairobi, 2012-04)Mo(NO)T p * Cl2 (T p * = 3,5-dimethyl pyrazole) when reacted with m-functionalized Fe(III) Schiff base complexes; the Schiff base ligands being derived from condensation of 2,4-dihydroxybenzaldehyde or salicylaldehyde ... -
Distribution and diversity of indigenous Trichoderma species in Machakos County, Kenya.
(University of Nairobi, 2015)Aim: This study was undertaken in order to determine the effect of land-use intensification on occurrence, distribution, and diversity of Trichoderma fungus. Study Design: Cross-sectional study. Place and Distribution of ... -
AF-2 Induced Chromosome Aberrations in Vicia faba Root Meristematic Cells
(University of Nairobi, 1984)The antimicrobial food additive AF-2 is mutagenic in bacteria, Neurospora, yeast and Drosophila. AF-2 breaks mammalian chromsomes. We studied by Feulgen staining the types and distribution of chromosome aberrations induced ... -
Mutagenicity Testing of Herbicides, Fungicides and Insecticides I Chromosome aberrations in Vicia faba
(University of Nairobi, 1981)The insecticides: summithion, lannate, carbicron, thiodan and kelthane, the fungicides: diathane M-45 and aladrin and the herbicides: ramrod, lasso, round up and grammoxone induce acute mitostatic effects of Vicia faba ... -
Application Of Magnetic Survey In The Investigation Of Iron Ore Deposits And Shear Zone Delineation: Case Study Of Mutomo-Ikutha Area, SE Kenya
(University of Nairobi, 2015)The study area is bounded by longitudes 38 0 4’E to 38 0 20’E and latitudes 1 0 48’S to 2 0 8’S in South Kitui within the Kitui County occupying about 100 Km 2 . This area can be accessed from ... -
Some Measurements in Radial Free Jets
(University of Nairobi, 1979) -
An experimental study of a plane mixing layer.
(University of Nairobi, 1973) -
Palindromes of identical digits
(University of Nairobi, 1969) -
Evaluation of the immunochromatographic strip test for the rapid diagnosis of antenatal syphilis in women in Eldoret, Kenya
(2009)Objective To determine the adjuvant potential of artemisinin with a soluble leishmanial antigen in vaccinating BALB/c mice. Methods Seventy two female BALB/c mice were randomly assigned into six groups. The mice ...