Browsing Faculty of Science & Technology (FST) by Title
Now showing items 2064-2083 of 4283
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Inhibition of Proinflammatory Cytokine Release by Flavones and Flavanones from the Leaves of Dracaena steudneri Engl
(University of Nairobi, 2021-03)The leaves of Dracaena steudneri yielded 6 new flavonoids-3,5,7-trihydroxy-6-methyl-3',4'-methylenedioxyflavone (1: ), 5,7-dihydroxy-3-methoxy-6-methyl-3',4'-methylenedioxyflavone (2: ), 3,5,7-trihydroxy-6-methoxy-3',4'- ... -
Inhibitory effect of Mangifera indica on gastrointestinal motility
(University of Nairobi, 2012)Diarrhoea, the second leading cause of child mortality, accounts for 1.5 million deaths, impeding the realization of the fourth Millennium Development Goal. A review of existing treatment modalities and formulation of ... -
Initial Correlations Among The Levels Of Various Nutrient Species In Water From Nairobi Dam, Kenya
(2011)Research work on Nairobi Dam, Kenya, and its tributaries has revealed that during the first trial sampling period, the R2 value, i.e., the square of linear regression correlation coefficient was poor between the nutrients: ... -
Initialization of Student Knowledge Level in a Learner Model-Based Adaptive E-Learning System
(College of Physical and Biological Sciences, 2009)Web-based learning systems give students the freedom to determine what to study based on each individual student’s learning goals. These systems support students in constructing their own knowledge for solving problems at ... -
Innovative Design Approach for Technology Adoption for illiterate and Semi-illiterate Users in Rural Kenya
(School of Computing and Informatics, 2006)Designing and developing user centered interfaces for users in rural Kenya presents the designer with exceptional challenges which in turn have provided a unique opportunity for innovation. Majority of the populace in ... -
Inoculation of tomato seedlings with Trichoderma Harzianum and Arbuscular Mycorrhizal Fungi and their effect on growth and control of wilt in tomato seedlings
(School of Biological Sciences, 2011)A green house study was conducted to investigate the ability of an isolate of Trichoderma harzianum (P52) and arbuscular mycorrhizal fungi (AMF) in enhancing growth and control of a wilt pathogen caused by Fusarium oxysporum ... -
Inoculation responses of Leucaena leucocephala grown in two tropical soils. International J. of BioChemiPhysics. Vol. 13 & 14
(School of Biological Sciences, 2002) -
Inorganic Solid State Solar Cell with Ultra-thin Nanocomposite Absorber based on Nanoporous TiO2 and In2S3
(2009)The increase of the diffusion length of a wet chemically prepared absorber by introducing a nanocomposite morphology and the resulting potential for reaching high energy conversion efficiencies were demonstrated. The ... -
Insect antifeedant and growth regulator compounds in different parts of Melia volkensii
(University of NairobiCollege of biological and physical science, 1991) -
Insect antifeedant principles from leaves of Polygonum senegalense.
(University of NairobiCollege of biological and physical science, 1990) -
Insect antifeedant, growth-inhibiting and larvicidal compounds from Rapanea melanphloes (Myrsinaceae)
(Department of Chemistry, 2011)The already known benzoquinone, embelin (mixed with rapanone), and two new benzoquinones, myrsinone and myrsinaquinone, were isolated from the Myrsinaceae plant, Rapanea melanphloes (L), Mez. All the three compounds showed ... -
Insect immunity: Induction of cecropin and attacin-like antibacterial factors in the haemolymph of Glossina morsitans morsitans
(University of Nairobi.School of Biological Sciences, 1987)Injections of live Escherichia coli into adult tsetse flies, Glossina morsitans morsitans induced an antibacterial activity in the haemolymph after a lag period of 6–18 hr. Peak activity occurred after 24–72 hr with a dose ... -
The insect pests of coffee and their distribution in Kenya
(School of Biological Sciences, 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 ... -
Insect podborer infestations and their influence on developing pods and final seed yields by pigeonpea (Cajanus cajan) in Kenya.
(Department of Zoology, University of Nairobi,, 1980)In Kenya, 8 species of insects were found to be common borers into the developing pods of pigeon pea (Cajanus cajan), feeding on the developing seeds and reducing seed yield. They were Heliothis armigera (Hb.), Maruca ... -
INSECT SPECIES ASSOCIATED WITH SWEET POTATOES ( Ipomoea batatas (L.) LAMK) IN EASTERN KENYA
(Department of Plant Science and Crop Protection, University of Nairobi, 2008)This study was conducted in Kibwezi, Eastern Ke nya during 20 November 2002 to 04 June 2003 to document the insects associated with sweet potatoes (Ipomoea batatas (L.) Lamk) and delineate the most important pests ... -
Insecticidal activity of extracts derived from different parts of the mangrove tree rhizophora mucronata (rhizophoraceae) lam. Against three arthropods
(Department of Zoology, University of Nairobi, 2001)The insecticidal and antifeedant activity of extracts derived from different parts of the mangrove tree Rhizophora mucronata (Rhizophoraceae) Lam. is reported. The 70% ethanol extracts of leaves, bark, stem wood and pith ... -
Insecticide evaluation against the Legume bud Thrips Megalurothrips sjostedti (Tryb.) (Thysanoptera: Thripidae)
(School of Biological Sciences, 1983) -
Insights into malaria transmission among Anopheles funestus mosquitoes, Kenya.
(BMC, 2018-11-06)Most malaria vectors belong to species complexes. Sibling species often exhibit divergent behaviors dictating the measures that can be deployed effectively in their control. Despite the importance of the Anopheles funestus ... -
The Institute for Climate Change and Adaptation
(The Institute for Climate Change and Adaptation, 2000) -
Institutional Arrangement and Change Dynamics for Economic Development in an ICT Enabled Environment
(University of NairobiCollege of Biological and Physical Sciences, 2013)