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Now showing items 21-40 of 620
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Reductivealdolreactions on aromatic heterocycles
(Elsevier, 2000-02-12)The Birch reduction of both pyrroles and furans can be quenched with an aldehyde electrophile, thus constituting a reductivealdolreaction. Although the reaction was not stereoselective, the pyrrolines derived from reduction ... -
CONCENTRATIONS OF H2S IN AIR AROUND THE OLKARIA GEOTHARMAL FIELD,KENYA
(2000-06)Changes in concentration of H2S with distance away from the Olkalia geothermal power station ,and at one discharging well were continuously monitored over periods of up to 11days .The changes inH2S were corrected with ... -
Contamination of Groundwater Resources by Pit Latrines in Kwale District, Kenya
(African Journals Online, 2001)Waters from springs, wells and boreholes were analysed for chemical and biological quality. Although most of the waters were found to be chemically suitable for drinking, 69% of the wells, 30% of the springs and 13% of the ... -
Peripheral blood dendritic cells in children with acute Plasmodium falciparum Malaria
(Blood, 2001)The importance of dendritic cells (DCs) for the initiation and regulation of immune responses not only to foreign organisms but also to the self has raised considerable interest in the qualitative and quantitative ... -
Uniaxial stress dependence of the binding energy of shallow donor impurities in GaAs–(Ga,Al)As quantum dots
(IEEE Xplore, 2001-07)We have studied the effects of an uniaxial stress on the binding energy of a shallow donor impurity in a parallelepiped-shaped GaAs–(Ga,Al)As quantum dot. In the calculations we have used a variational technique within the ... -
It was a silly day to be sick
(The Lancet, 2001-12)When I first had malaria, the symptoms started while I was waiting my turn for an interview for my first research job 5 years ago. Feeling chi ... -
Organochlorine and organophosphorus pesticide concentrations in water, sediment, and selected organisms in Lake Naivasha (Kenya)
(Spingerlink, 2002)Water, sediment, red swamp crayfish (Procambarus clarkii) and black bass (Micropterus salmoides) from Lake Naivasha were analyzed for selected organochlorine and organophosphorus pesticide residues. The mean p,p'-DDT, ... -
The Contribution of Drinking Water towards Dental Fluorosis: A case study of Njoro Division, Nakuru District, Kenya
(2002)This study was carried out to measure the fluoride levels of water consumed in the Njoro division of Nakuru district, Kenya. The sources of drinking water, methods of water storage and utilisation, as well as the perceptions ... -
The Effect of Uniaxial Stress on the Density of States of Shallow Donor Impurities in GaAs Quantum Wells
(IOP, 2002)We have calculated the density of impurity states (DOIS) as a function of applied uniaxial stress of shallow hydrogen donor impurity in a quantum well (QW). The calculations were carried out using a variational procedure ... -
Control of Witchweed Striga hermonthica by Intercropping with Desmodium spp., and the Mechanism Defined as Allelopathic
(Spingerlink, 2002)During investigations into the control of insect damage to maize crops in subsistence farming in Kenya, which involved intercropping with repellent plants, the fodder legumes silverleaf (Desmodium uncinatum) and greenleaf ... -
CD4 T Cell Responses to a Variant Antigen of the Malaria Parasite Plasmodium falciparum, Erythrocyte Membrane Protein–1, in Individuals Living in Malaria-Endemic Areas
(Infectious Diseases, 2002)Plasmodium falciparum erythrocyte membrane protein–1 (PfEMP-1) is a variant antigen on the surface of malaria-infected red blood cells. Antibody responses to PfEMP-1 correlate with immunity, and, therefore, PfEMP-1 may ... -
Control of Witchweed Striga hermonthica by Intercropping with Desmodium spp., and the Mechanism Defined as Allelopathic
(Spingerlink, 2002)During investigations into the control of insect damage to maize crops in subsistence farming in Kenya, which involved intercropping with repellent plants, the fodder legumes silverleaf (Desmodium uncinatum) and greenleaf ... -
The Potential of Geothermal Systems in Kenya for Balneological Use
(springerlink, 2002)Curative properties of geothermal waters are highly valued in several countries around the world, including China, Iceland, and middle and Eastern European states. Natural hotsprings and fumaroles found in various parts ... -
The Potential of Geothermal Systems in Kenya for Balneological Use
(Spingerlink, 2002)Curative properties of geothermal waters are highly valued in several countries around the world, including China, Iceland, and middle and Eastern European states. Natural hotsprings and fumaroles found in various parts ... -
The effects of untreated bednets on malaria infection and morbidity on the Kenyan coast
(TRANSACTIONS OF THE ROYAL SOCIETY OF TROPICAL MEDICINE AND HYGIENE, 2002-01-31)A study was conducted in order to determine whether children that slept under untreated bednets were protected against both malaria infection and clinical disease compared with children not sleeping under bednets. The ... -
The ethnobotany of the Midzichenda tribes of the coastal forest areas in Kenya: 1. General perspective and non-medicinal plant uses
(African Journals Online, 2003)The coastal forests of Kenya represent a rare and threatened forest type, rich in biodiversity, with an estimated flora of over 3 000 plant taxa, of which about 550 taxa are endemic. The existing forest patches include ... -
Resource mobilization in public university libraries in Tanzania
(African Journals Online, 2003)This paper examines the role of resource mobilization in improving library services in Public University Libraries. Some of the challenges facing these libraries are limited funds and other library resources. Public ... -
The ethnobotany of the Midzichenda tribes of the coastal forest areas in Kenya: 2. Medicinal plant uses
(Refdoc, 2003)The Midzichenda have relied on plant resources for their basic needs, which included medicinal use, for centuries. This paper presents an inventory of some of the indigenous knowledge on medicinal plant uses of three ... -
The role of Nutritional Information in addressing under-five child malnutrition in Tanzania
(African Journals Online, 2003)The paper discusses the role of nutritional information for addressing under-five child malnutrition in Tanzania. The paper is based on a master's dissertation whose objective was to determine the sources of nutritional ... -
EX VIVO INTERFERON-GAMMA IMMUNE RESPONSE TO THROMBOSPONDIN-RELATED ADHESIVE PROTEIN IN COASTAL KENYANS: LONGEVITY AND RISK OF PLASMODIUM FALCIPARUM INFECTION
(American Journal of Tropical Medicine and Hygiene, 2003)Abstract. Thrombospondin-related adhesive protein (TRAP) of Plasmodium falciparum iscurrently being tested in human vaccine studies. However, its natural reactivity in the field remainspoorly characterized. More than 40% ...