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Now showing items 1311-1320 of 1383
Effects of Tio2 Film Thickness and Electrolyte Concentration on Photovoltaic Performance of Dye-sensitized Solar Cell
(University of Nairobi, 2017)
Effects of film thickness and electrolyte concentration on the photovoltaic performance of TiO2-based dye-sensitized solar cell (DSSC) were studied. Nanocrystalline anatase TiO2 thin films with varying thicknesses (3.2–18.9μm) ...
Antibacterial activity of five medicinal plant extracts used by the Maasai people of Kenya
(University of Nairobi, 2014)
Five locally known plants,
Solanum aculeastrum, Erythrina abyssinica, Carissa
edulis, Croton megalocarpus
and
Myrica salicifolia
used by Maasai traditional healers for treatment of
bacterial infections were extracted ...
Anti-vancomycin-resistant Enterococcusfaecium and E. faecalis ACTIVITIES of (-)-gossypol and derivatives from Thespesia garckeana.
(2015)
The root extract of Thespesia garckeana yielded three known oxidatively coupled sesquiterpenoids, namely (-)-gossypol (1) and two of its derivatives (-)-6-methoxygossypol (2) and (+)-6,6'-dimethoxygossypol (3), and the ...
Trypanosoma Infection Rates in Glossina Species in Mtito Andei Division, Makueni County, Kenya.
(University of Nairobi, 2015-11)
African Animal Trypanosomiasis (AAT) transmitted cyclically by tsetse fly (Glossina spp.) is a major obstacle to livestock production in the tropical parts of Africa. The objective of this study was to determine the infection ...
Bentonite used as a host matrix in the study of ester hydrolysis
(University of Nairobi, 2015)
Abstract:
In this paper
results obtained on the kinetics of este
r adsorption on raw, acid treated and pre
-
heated
bentonite have bee
n presented. T
he infra
-
red profiles and the XRF spectra of ...
The Sensitivity of East African rift lakes to climate fluctuations
(2010)
Sequences of paleo-shorelines and the deposits of rift lakes are used to reconstruct past climate changes in East Africa. These recorders of hydrological changes in the Rift Valley indicate extreme lake-level variations ...
Future hydrology and climate in the River Nile basin
(2011)
A critical discussion of recent studies that analysed the effects of climate change on the water resources of the River Nile Basin (RNB) is presented. First, current water-related issues on the RNB showing the particular ...
Synthesis and characterization of silver nanoparticles using tea extracts and their application in nanobiosensors
(2012)
A facile reduction approach with silver nitrate, AgN03, solution and tea extracts led to polydisperse silver nanoparticles, tea-AgNPs, at room temperature. A mixture of AgN03 solution and tea extracts, extracted at 90°C, ...
Evaluation of selected soil fertility management interventions for suppression of fusarium spp. in a maize and beans intercrop
(2011)
Fusarium root rot of maize and beans is a common problem in Taita District, Kenya causing economic losses to the small scale farmers. The pathogen attacks maize and beans at all growth stages causing rot at the seedling ...