Faculty of Science & Technology (FST): Recent submissions
Now showing items 3981-4000 of 4283
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An inter-basinal comparison of the sedimentology of Late Holocene to recent sediments in the Rift Valley, Lake Turkana, Kenya
(2000)Grain size variations, sediment chemistry and general mineralogical assemblages of sediments in Lake Turkana reflect provenance. Allogenic sediments in Lake Turkana are mainly supplied by the Omo and Kerio-Turkwel Rivers. ... -
Long-term temporal characteristics of palaeomonsoon dynamics in equatorial Africa
(2000)In this paper we examine the long-term temporal characteristics of palaeomonsoon dynamics in equatorial Africa from a continuous lacustrine sequence retrieved from Sacred Lake, Mount Kenya (0°03′N, 37°32′E, 2350 m a.s.l.), ... -
Heavy Metals in sediments from Makupa and Port-Reitz creek systems: Kenyan Coast ,
(Department of Chemistry, 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 ... -
Structure and Composition of Acacia xanthophloea woodland in Lake Nakuru National Park, Kenya
(Department of Chemistry, 2006)The woody vegetation of Lake Nakuru National Park occurs along rivers, lakeshores and flood plains. Four different sites within the Acacia xanthophloea woodlands were selected for the study. Vegetation structure was not ... -
Synthesis and Properties of Novel Polyvinyl alcohol-Lactic acid Gels
(Department of Chemistry, 2009) -
Holocene climatic, hydrological and environmental oscillations in the tropics with special reference to Africa
(2005)The tropics have experienced large and sometimes abrupt fluctuations in the water balance since the beginning of the Holocene period. Water levels were generally high in the equatorial region and northern hemisphere at the ... -
Carbon sources supporting a diverse fish community in a tropical coastal ecosystem (Gazi Bay, Kenya)
(Department of Chemistry, 2009) -
Lake Baringo: Addressing threatened biodiversity and livelihoods
(2006)Lake Baringo is a shallow, internal drainage, freshwater lake located in the Kenyan Rift Valley. The lake is an important source of water for humans and livestock, as well as a significant income source for local communities ... -
Sediment impacts in Africa's transboundary lake/river basins: Case study of the East African Great Lakes
(Department of Geology, University of Nairobi, 2007)The current population pressure, inappropriate cultivation practices, forest removal and high grazing intensities on forests, wetlands, rangelands and marginal agricultural lands leads to unwanted sediment and stream flow ... -
Levels of Selected Heavy Metals & Fluoride in water around Fluorspar Factory in Kerio Valley, Kenya
(Department Chemistry, 2010) -
The effect of Temperature and blending on the specific gravity and viscosity of Jatropha Methyl ester
(Department of Chemistry, 2011)The specific gravity and viscosity of biodiesel fuels are key properties in determining the suitability for use of such fuels in diesel engines. Though generally higher than those of #2 diesel fuel (DF2), they have been ... -
Evaluation of Chemical and Physical Properties of Biodiesel Produced from Used Edible Vegetable Oil
(Department of Chemistry, 2011) -
Study on weight loss and moisture regain of Silk Cocoon shells and Degummed Fibers from African Wild Silkmoths
(Department of Chemistry, 2011)A study was conducted to determine weight loss and moisture regain properties of silk cocoon shells, shell layers and degummed fibers of the four African wild silkmoths Anaphe panda, Argema mimosae, Epiphora bauhiniae ... -
Biosorption of Malachite Green from Aqueous Solutions onto Polylactide/Spent Brewery Grains Films: Kinetic and Equilibrium Studies
(Department of Chemistry, 2012)Batch experiments were conducted to study the biosorption of Malachite Green (MG) onto polylactide (PLA)/spent brewery grains (SBGs) films. Films were prepared by solvent-casting method using dichloromethane. Effects of ... -
Mechanical and Thermal Degradation Properties of Silk from African Wild Silkmoths
(Department of Chemistry, 2012)Variations among silk of four African wild silkmoths, Argema mimosae, Anaphe panda, Gonometa postica, and Epiphora bauhiniae, was studied regarding their mechanical properties and thermal ... -
Study on the microstructure of African wild silk cocoon shells and fibers
(Department of Chemistry, University of Nairobi, 2012-01)Silk fibers and cocoon shells from four African wild silkmoths Gonometa postica, Anaphe panda, Argema mimosae and Epiphora bauhiniae-were studied to gain insight into the structure-property-function relations and potential ... -
Complexity reduction in the formative evaluation process using the QuizIntegrator. In Sustainable ICT capacity in developing countries.
(University of Nairobischool of comptuting and informatics, 2005) -
The late Proterozoic Yatta Shear Zone: A possible lateral ramp extending across the Kenya Rift
(1994)On the basis of a test experiment in 1985 (KRISP 85) an integrated seismic-refraction/ teleseismic survey (KRISP 90) was undertaken to study the deep structure beneath the Kenya rift down to depths of NO-150 km. This ... -
Isolation and in Vitro antiplasmodial Activities of Alkaloid from Teclea trichocarpa: In Vivo antimalaria activity and X-ray crystal structure of normelicopicine
(Department of Chemistry, 2002-07)Seven alkaloids have been isolated from Teclea trichocarpa including four, normelicopicine (1), arborinine (2), skimmianine (6), and dictamnine (7), that are reported for the first time in addition to the previously reported ...