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In vivo screening of antimalarial activity of Acacia mellifera (Benth) (Leguminosae) on Plasmodium berghei in mice.
(2007)
The activities of total extracts and lupane triterpenes, isolated from the stem bark of Acacia mellifera, were evaluated against Plasmodium berghei strain ANKA in a female Swiss mouse model. Five isolated compounds and the ...
Copper binding by dissolved organic matter in freshwaters in Kenya
(Department of Chemistry, 2007)
The binding of Cu2+ to dissolved organic matter in eight different natural water samples obtained from different locations in Kenya was studied by potentiometric titration method. The DOC contents of the eight natural water ...
Clinical malaria reduces human attractiveness to mosquitoes
(University Of Nairobi, 2007)
Evolutionary fitness concepts dictate that blood parasites should regulate
their transmission success by enhancing the responsiveness of
arthropod vectors to infectious hosts. We observed that the presence of
trophozoite ...
Lupane triterpenoids from Acacia mellifera with cytotoxic activity.
(2007)
Three new pentacyclic triterpenoids: (20R)-3-oxolupan-30-al (1), (20S)-3-oxolupan-30-al (2) and (20R)-28-hydroxylupen-30-al-3-one (3), along with (20S)-3beta-hydroxylupan-30-al (4), the latter previously described as a ...
Screening of Local Bacillus thuringiensis Isolates for Toxicity to Chilo partellus, Sesamia calamistis and Busseola fusca in Kenya
(2007)
Stem borers are a major source of pre-harvest maize crop losses in Kenya and many Sub-Saharan African countries. This menace needs to be addressed if food security is to be realized in this region. Seven local isolates of ...
Bryological diversity and distribution along an altitudinal gradient on a lava flow of the Piton de la Fournaise volcano, Reunion island. Diversity and Distrib
(2007)
Pneumatocele, a special form of lung injury, is characterized by intrathoracic images of cavities detected on X-ray films. These cavities develop immediately after a trauma of the thorax, disappear rapidly and have a ...
High-Level Heterologous Expression of Bacillus halodurans Putative Xylanase Xyn11A (BH0899) in Kluyveromyces lacti
(2007-03)
The putative xyn11A structural gene (BH0899) encoding a family-11 xylanase from alkaliphilic Bacillus halodurans strain C-125 was heterologously expressed in the yeast Kluyveromyces lactis CBS 1065 and secreted to a level ...
Soil moisture and maize-bean yields under different management in a six years old hedged Agroforestry system in Semi-Arid Laikipia, Kenya, for two contrasting seasons
(2007)
Hedged agroforestry (AF) demonstration plots with maize/bean intercrops were studied at Matanya in
Laikipia district, Kenya, between 1991 and 1995 inclusive, to understand crop yield behaviour due to
selected soil moisture ...
EFFECT OF NITRATION ON PRESSED TIO2 PHOTOELECTRODES FOR DYE-SENSITIZED SOLAR CELLS
(2007)
TiO2 films made by the pressing method and then nitrogen-doped by heat-treatment in
nitrogen, oxygen and argon gas mixture have been studied and the effects of structural characteristics,
optical and electrical properties ...
Automatic Diacritic Restoration for Resource-Scarce Languages
(2007)
The orthography of many resource-scarce languages includes diacritically marked characters. Falling outside the scope of the standard Latin encoding, these characters are often represented in digital language resources as ...