Faculty of Science & Technology (FST): Recent submissions
Now showing items 2881-2900 of 4284
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Triterpene saponins of Maesa lanceolata leaves
(Department of Chemistry, 2011)Chemical investigation of Maesa lanceolata leaves aqueous MeOH extract has led to the isolation of eight new triterpene glycosides identified as 16-oxo-28-hydroxyolean-12-ene 3- O - β -glucopyranosyl-(1'' → 6') ... -
Preliminary studies on antipyretic and analgesic properties of Taverniera abyssinica
(University of NairobiCollege of Biological and Physical Sciences,University of Nairobi, 1990-10)In an attempt to ascertain the pharmacological basis of the use of the marketed traditional drug Taverniera abyssinica A. Rich. (Amharic name Dingetegna), crude extracts as well as purified substances of this plant were ... -
Effects of Insecticide Applications on Sunflower (Helianthus annuus L.) Pollination in Eastern Kenya
(IDOSI Publications,'Department of Plant Science and Crop Protection, University of NairobiCentre for Development Research (ZEF), University of Bonn. Postfasch: Walter-Flex-Str. 3,53113 Bonn GermanyDepartment of Zoology, University of Nairobi, 2007)Two insecticides (Dimethoate and Lambda cyhalothrin), commonly used in eastern Kenya to control sunflower pests, were assessed to determine their use-effect on the crop pollination and its subsequent yield Sunflower, cv ... -
Relationships between Plasmodium falciparum transmission by vector populations and the incidence of severe disease at nine sites on the Kenyan coast
(The American Society of Tropical Medecine and HygieneDepartment(s) of Zoology, University of Nairobi, 1995)The transmission of Plasmodium falciparum was studied in relation to the incidence of severe malaria infections at nine sites in the Kilifi District in Kenya. Intensive mosquito sampling during a one-year period yielded ... -
Energy Security and Technology in Eastern and Southern Africa: Opportunities and Options for Alternative Power Generation. In Proceedings of the Workshop on Energy Security and Technology:
(University of NairobiCollege of biological and physical science, 2000) -
The role of farm structure on bird assemblages around a Kenyan tropical rainforest.
(School of Computing and Informatics, College of Biological and Physical Sciences, University of Nairobi, 2011) -
Behavioral Strategies Used by Macrotermes michaelseni foragers to Avoid Ant Predation (lsoptera: Macrotermitinae)
(Department of Zoology, University of Nairobi, 1989)Macrotermes michae/seni, a dominant invertebrate herbivore in the semi-arid savanna of Kajiado, Kenya, was studied to establish what measures its foragers adopt to counteract ant predation while insuring adequate ... -
Organic content and X-ray density of lacustrine sediments from Hausberg Tarn, Mount Kenya
(University of Nairobi.Department of Geology, University of Nairobi, Nairobi, Kenya, 2004)The variations in the organic content of a sediment core from a pro-glacial lake, Hausberg Tarn, located on the NW slope of Mount Kenya has been determined. Two types of methods for determining organic content were compared ... -
Diurnal population trends of Megalurothrips sjostedti and Frankliniella occidentalis (Thysanoptera: Thripidae) and their natural enemies on French bean Phaseolus vulgaris (Fabaceae)
(ICIPEDepartment of Plant Science and Crop Protection, University of Nairobi,Department of Zoology, University of Nairobi,Kenya Agricultural Research Institute, National Fibre Research Centre,, 2006)A field experiment was conducted to track the daily population trends and occurrence of the flower thrips Megalurothrips sjostedti Trybom and Frankliniella occidenialis (Pergande), and their indigenous natural enemies ... -
Efficacy of microencapsulated repellents based on Psiadia punctulata exudate and Daphne essential oils
(Department of Chemistry, 2001)This paper presents the results of testing the efficacy of microencapsulated repellents isolated from P. punctulata leaves, and the Daphne repellents. The active compound of Daphne is a mixture of more than twenty natural ... -
Ethnobotanical Survey and Antimicrobial Evaluation of Medicinal Plants used by the Samburu Community (Kenya) for treatment of Diarrhorea
(Department(s) of Zoology, University of Nairobi, 2009)The Samburu are a marginalized nomadic people who have no access to conventional medical services. The Samburu therefore depend on traditional medical practice and medicinal plants for most of their medicare. The medicinal ... -
Knipholone cyclooxanthrone and an anthraquinone dimer with antiplasmodial activities from the roots of Kniphofia foliosa
(Department of Chemistry, 2013)A new phenylanthrone, named knipholone cyclooxanthrone and a dimeric anthraquinone, 10-methoxy-10,7′-(chrysophanol anthrone)-chrysophanol were isolated from the roots of Kniphofia foliosa together with the rare naphthalene ... -
Theoretical investigation of gain in 1.3mm GaInNAs-GaAs quantum Well diode lasers
(University of NairobiCollege of biological and physical science, 2001) -
Improved performance of strained layer diode lasers by non-square quantum well growth
(University of NairobiCollege of biological and physical science, 2000) -
START/PAGES Activities in Sub-Saharan Africa
(University of Nairobi.Department of Geology, University of Nairobi, Chiromo Campus, Nairobi, Kenya, 2001-08)Africa is a rich repository of palaeoenvironmental and palaeoclimatic change. It is unique in that it is the only continent that, almost symmetrically, straddles the equator, and hence experiences both northern and southern ... -
Design, Implementation and Evaluation of a Routing Engine for a multipoint communication protocol: XCAST6
(School of Computing and Informatics, College of Biological and Physical Sciences, University of Nairobi, 2011) -
Intraspecific competition in larvae of the larger grain borer, Prostephanus truncatus (Horn) within maize grains
(School of Biological Sciences, 1998)The effects of egg clutch size on development and survivorship of the larger grain borer, Prostephanus truncatus (Horn) (Col.: Bostrichidae) on maize were measured in the laboratory using single grains of the white maize ... -
Quantum well shaping for reduced threshold current in strained layer lasers
(University of NairobiCollege of biological and physical science, 1996) -
Scalable QoS for XCAST using Differentiated Services Architecture
(School of Computing and Informatics, College of Biological and Physical Sciences, University of Nairobi, 2013) -
Laser applications of exact expressions for hole subband effective mass in arbitrarily shaped quantum wells grown along arbitrary crystal axes
(University of NairobiCollege of biological and physical science, 1995)
