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Tropane alkaloids from Erythroxylum emarginatum
(2007)
A tropane alkaloid, anhydroecgonine methyl ester N-oxide (2), was isolated for the first time as a naturally occurring compound, with anhydroecgonine methyl ester (1) from the bark of Erythroxylum emarginatum. Compound 1 ...
Geology, geochemistry, and stratigraphy of Lemudongo formation, Kenya Rift Valley
(2007)
The Lemudongo Formation is defined here as part of a late Miocene to Late Pleistocene
sequence of stratified lavas, air-fall and waterlain tuffs, lacustrine, alluvial sediments, and
paleosols, that crop out over an ...
Tsetse and other biting fly responses to Nzi traps baited with octenol, phenols and acetone
(2007)
Octenol (1-octen-3-ol), acetone, 4-methylphenol, 3-n-propylphenol, and other potential attractants (human urine, stable fly faeces), as well as guiacol, creosol (potential repellents), were tested as baits for biting flies ...
Factors affecting abundance and distribution of submerged and floating macrophytes in Lake Naivasha, Kenya
(2007)
Macrophytes have been shown to perform important ecological roles in Lake Naivasha. Consequently, various studies regarding the impact of biotic factors on the macrophytes have been advanced but related studies on environmental ...
The Effect of overfishing on the life- history strategy of Nile tilapia, Oreochromis niloticus in the Nyanza Gulf of Lake Victoria, Kenya
(2007)
Studies were conducted on reproductive characteristics of Oreochromis niloticus from 1998 to 2000. The results were combined with published work on growth parameters of O. niloticus from 1985 to 1999 in order to establish ...
Analysis of heavy metals in water and surface sediment in five Rift Valley lakes in Kenya for assessment of recent increase in anthropogenic activities
(2007)
The concentrations of heavy metals Ag, Cd, Co, Cr, Cu, Mn, Ni, Pb, Sn and Zn were analysed in water and surface sediments of five Rift Valley lakes Nakuru, Elementaita, Naivasha, Bogoria and Baringo in Kenya. The dissolved ...
Flood frequency analysis in lake Victoria basin based on tail behaviour of distributions
(University of Nairobi, 2007)
The primary objective of the study was to find a suitable distribution class for flood frequency analysis on the Kenyan side of Lake Victoria basin. This involved performing at-site analysis using Peak Over Thresh-old ...
Subsurface characterization ustng textural features extracted from GPR data
(University of Nairobi, 2007)
Subsurface conditions can be non-intrusively mapped by observing and grouping patterns of similarity within ground-penetrating radar (GPR) profiles. We have observed that the intricate and often visually indiscernible ...