Faculty of Science & Technology (FST): Recent submissions
Now showing items 2041-2060 of 4284
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Taxonomy of the Fungus causing speckling disease of Bananas in Kenya
(University of NairobiCollege of biological and physical science, 1994) -
Paleomagnetic results from the Narosura and Magadi volcanics of Kenya
(Department of Physics, University of Nairobi, 1979)Results of a paleomagnetic study carried out on the exposed volcanic rocks on the western side of the South Kenya Rift Valley are presented. Nine stratigraphic groups ranging in age from Miocene to Pleistocene were sampled. ... -
An Important specific character in identification of Cercospora and allied genera.
(University of NairobiCollege of biological and physical science, 1995) -
Natural Radioactivity in Some Building Materials in Kenya and the Contributions to the Indoor External Doses
(1997)Against a background of growing concern over the health risks associated with exposure to natural sources of radiation, a study has been carried out in Kenya in which the activity concentrations of the major radionuclides ... -
Magnetic and Paleomagnetic Studies of the Nipissing Diabase, Lake Matinenda Area, Ontario
(1974)Samples of the Nipissing diabase were collected for rock-magnetic and paleomagnetic studies around and west of Lake Matinenda, Ontario. The specimens have been classified into three groups, based on their stability of ... -
Assessment of human exposures to natural sources of radiation in Kenya
(1999)Exposures to various components of the natural background radiation in Kenya were estimated using measured activity concentrations of natural radionuclides and conversion factors. Contributions to the total effective dose ... -
Modeling the 2-D seismic velocity structure across the Kenya rift
(Department of Earth and Atmospheric Sciences, Purdue University, USADepartment of Geological Sciences, University of Texas at El Paso, USADepartment of Physics, University of Nairobi, Kenya, 1994)A 460-km-long seismic refraction/wide-angle reflection profile across the East African rift in Kenya has been interpreted using a travel-time inversion method to calculate a two-dimensional crustal and uppermost mantle ... -
An investigation of the repeatability of calibration factors in gamma-ray spectrometry of geological materials
(Department of Physics, University of Nairobi, 2004)A NaI(Tl)-based gamma spectrometer for the analysis of geological materials was calibrated using the IAEA reference materials RGU-1, RGTH-1 and RGK-1. To simulate typical geological samples, two additional standards were ... -
In vitro response of the citrus fruit and leafspot fungus Phaeoramularia angolensis to fungicides in Kenya
(University of NairobiCollege of biological and physical science, 1996) -
Colonisation of resistant and susceptible bean tissue by Phaeoisariopsis griseola (Sacc.) Ferr
(University of NairobiCollege of biological and physical science, 1999)Fungal development and the associated cellular reactions in three bean (Phaseolus vulgaris L.) cultivars/lines inoculated with Phaeoisariopsis griseola isolate PG18 were studied. Differences in the extent of fungal development ... -
Development and evaluation of secondary metabolite-based assay technique for species delimitation in Cercosporoid fungi
(University of NairobiCollege of biological and physical science, 1999) -
New dematiaceous hyphomycetes from Kenyan rare plants
(University of NairobiCollege of biological and physical science, 1999) -
Training for Fungal and Invertebrate Taxonomy for the Utilization and Conservation of Biodiversity
(University of NairobiCollege of biological and physical science, 2000) -
Priorities for microfungi associated with indigenous, rare and endangered plants in Kenyan threatened ecosystems
(University of NairobiCollege of biological and physical science, 2000) -
DNA fingerprinting for detection of pathogenic fungi in diseased host plant tissues
(University of NairobiCollege of biological and physical science, 2000) -
The antiplasmodial and radical scavenging activities of flavonoids of Erythrina burttii
(Department of Chemistry, University of NairobiUnited States Army Medical Research Unit-Kenya, Walter Reed Project, USASchool of Bio-Sciences, College of Natural Sciences, Makerere University, UgandaDepartment of Chemistry, Makerere University, UgandaCenter for Traditional Medicine and Drug Research, Kenya Medical Research Institute (KEMRI)Department of Chemistry and Life Science, United States Military Academy, USA, 2012-08)The acetone extract of the root bark of Erythrina burttii showed in vitro antiplasmodial activity against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium falciparum with IC50 values of ... -
(R)-Prechrysophanol from Aloe graminicola
(Department of Chemistry, University of NairobiUniversitaet Hannover, Institut fuer Organische Chemie, Germany, 1993)From the subterranean stem of Aloe graminicola, a new pre-anthraquinone named prechrysophanol was isolated. Chrysophanol, helminthosporin, (R)-aloesaponol I, (R)-aloesaponol II, aloesaponarin I, aloesaponarin II and laccaic ... -
Chemotaxonomic significance of anthraquinones in the roots of asphodeloideae (asphodelaceae)
(1995)The distribution of seven anthraquinones in the roots of some 46 species belonging to the genera Asphodelus, Asphodeline, Bulbine, Bulbinella and Kniphofia was studied by TLC and HPLC, 1,8-Dihydroxyanthraquinones based on ...
