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Leaf stomata conductance, leaf water potential and soil water status in panicum maximum (JACQ.) in disturbed and non-disturbed microsites in a semi-arid ecosystem in Kenya
(Jomo Kenyatta University of Agriculture and Technology, 2011)
Tropical semi-arid ecosystems are intricate ecosystems characterized by
alternating dry-wet cycles. The question of how trees and grasses coexist under a
considerable range of environmental and management conditions has ...
The evolution of pyrimethamine resistant dhfr in Plasmodium falciparum of south-eastern Tanzania: comparing selection under SP alone vs SP+artesunate combination.
(University of Nairobi., 2011-10)
BACKGROUND:
Sulphadoxine-pyrimethamine (SP) resistance is now widespread throughout east and southern Africa and artemisinin compounds in combination with synthetic drugs (ACT) are recommended as replacement treatments ...
Estimation of Radiative Forcing due to Aerosols over Selected Sites in Kenya
(2011)
Atmospheric aerosols modulate the radiative budget and ambient air quality of the atmosphere, thus, there is a need to develop both analytical and computational methodological techniques that determine their physical, ...
Biosorption of heavy metals using water hyacinth Eichhornia crassipes (Mart.) solms-Laubach: adsorption properties and technological assessment
(University of Nairobi, Kenya, 2011)
The adsorption of heavy metal ions (Cd2+), Cu2+), Pb2+) and Zn2+) by untreated water hyacinth Eichhornia crassipes obtained from Lake Victoria, Kenya was investigated under batch mode. A The effects of sample part, particle ...
Molecular characterization and identification of biocontrol isolates of Trichoderma harzianum from Embu district, Kenya
(2011)
Species in the genus Trichoderma are important commercial source of several enzymes, biofungicides and growth promoters. The most common biological control agents of the genus are strains of T. harzianum, T .viride and T. ...
The insect pests of coffee and their distribution in Kenya
(2011)
Coffee insect pests constrain the production of anticipated high coffee yield and quality. Knowledge of common insect pests on coffee is important to facilitate the designing of effective control strategies that are likely ...
Plasmodium falciparum transmission and aridity: a Kenyan experience from the dry lands of Baringo and its implications for Anopheles arabiensis control
(2011)
Background:
The ecology of malaria vectors particularly in semi-arid areas of Africa is poorly understood. Accurate knowledge on this subject will boost current efforts to reduce the burden of malaria in sub-Saharan ...
A Preliminary Evaluation of the DDT Contamination of Sediments in Lakes Natron and Bogoria (Eastern Rift Valley, Africa)
(Royal Swedish Academy of Sciences, 2011)
Dichlorodiphenyltrichloroethane (DDT) is still
used in Africa for the indoor control of malaria and it may
represent a potential hazard for wildlife. The littoral sediments of two alkaline-saline lakes, Natron (Tanzania) ...
Dry season ecology of Anopheles gambiae complex mosquitoes at larval habitats in two traditionally semi-arid villages in Baringo, Kenya
(2/28/2011)
Background:
Pre-adult stages of malaria vectors in semi-arid areas are confronted with highly variable and challenging climatic conditions. The objective of this study was to determine which larval habitat types are ...