Faculty of Science & Technology (FST): Recent submissions
Now showing items 3141-3160 of 4283
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Chromadoridae(Chromadorida:Nematoda)fromtheIndianOcean:
(Universityof Ghent,DepartmentofMorphology,Systematics&Ecology,MarineBiologySection,, 1998)Seventeen new and known species of the familyChromadoridae are described. The genus Dichromadora is represented by five species. Dichromadora longicaudata sp.n. is characterised bya slender body and thin long tail; ... -
Microlaimidae (Microlaimoidea: Nematoda) from the Indian Ocean:
(University of Ghent, Department of Biology, Marine Biology Section, K.L. Ledeganckstraat 35, B-9000 Gent,, 1999)Nine species are described from the genera Aponema Jensen, 1978, Bolbolaimus Cobb, 1920, Calomicrolaimus Lorenzen, 1976, Ixonema Lorenzen, 1976 and Microlaimus de Man, 1880. Aponema decraemerae sp.n.is characterised by ... -
In vitro antifungal activity of Schizozygia coffaeoides Bail. (Apocynaceae) extracts
(Department of botany, University of Nairobi, 2001)Leaf extracts of Schizozygia coffaeoides were investigated for antifungal activity using the disc diffusion assay technique. Petroleum ether 40–60°C, dichloromethane–ethyl acetate (1:1) and methanol extracts were fungitoxic ... -
Acantholaimus(chromadoridae:nematoda)fromtheIndianOcean:
(University of Ghent, Department of Morpholog y, Systematics & Ecology, Marine Biolog y Section,, 1997)Seven species of the Acantholaimus are described. Acantholaimu s vermeuleni sp.n. is characterised by labial and cephalicsensilla that are located at the same level, two post amphidialsetae on the dorso-lateralside and a ... -
Antimalarial Activity of Some Kenyan Medicinal Plants
(1999)This paper describes the in vitro antimalarial activity of eight species of plants popularly used traditionally to treat malaria in Kenya. Organic and aqueous extracts from different parts of the plants were tested. ... -
Directed Ring-Opening of 1,5-Dioxaspiro[3.2]hexanes: Selective Formation of 2,2-Disubstituted Oxetanes
(Department of Chemistry, University of Nairobi, 2003)1,5-Dioxaspiro[3.2]hexanes undergo ring-opening reactions with many heteroatom nucleophiles to provide α-substituted-β‘-hydroxy ketones. However, certain Lewis acidic nucleophiles provide 2,2-disubstituted oxetanes. Herein, ... -
Skin irritant diterpene orthoesters of the daphnane type from Peddiea africana and P. Volkensii
(ElsevierDepartment of botany, University of Nairobi, 1985)From roots of Peddiea volkensii (Thymelaeaceae) the irritant factors V1 and V2 and from roots of P. africana the irritant factor A1 were isolated. Their structures are the 9,13,14-ortho-(2,4,6-decatrienoates) of ... -
Biochemical Systematics and Ecology
(ElsevierDepartment of botany, 1975)Biflavanoid patterns of leaves of 82 species of the order Cycadales comprising 3 families and 10 genera have been determined. The biflavanoids were identified by TLC, UV, NMR and MS studies. Pattern differences between ... -
Species richness of the genus Molgolaimus (Nematoda) from local to ocean scale along continental slopes
(College of Biological and Physical Sciences, University of Nairobi, 2007)This study investigated the distribution of Molgolaimus species (Nematoda) at different hierarchical spatial scales and observed the turnover of species along bathymetrical transects and among transects in two separate ... -
Energy Dispersive X-Ray Florescence analysis of mine waters from the Migori gold mining belt in Southern Nyanza, Kenya
(Department of Physics, University of Nairobi., 2011) -
Distribution of α-amino-β-methylaminopropionic acid in Cycas
(ElsevierDepartment of botany, 1973)α-Amino-β-methylaminopropionic acid, previously isolated from seeds of Cycas circinalis, has now been identified either free or bound in all th -
Article Preparation and Properties of 2-Methyleneoxetanes
(American Chemical SocietyDepartment of Chemistry,, 1999)The methylenation of β-lactones 5 with dimethyltitanocene provides a versatile, reliable, and highly chemoselective entry to 2-methyleneoxetanes 7. The conversion proceeds selectively in the presence of alkenes, unprotected ... -
Deep-sea nematodes from the Indian Ocean: new and known species of the family Comesomatidae
(College of Biological and Physical Sciences, University of Nairobi, 1997)Twelve new and known species of the genera Sabatieria,Cervonema, Paramesonchium, Hopperia and Dorylaimopsis and one new genus, Kenyanema aredescribed from the Indian Ocean and S. pisinna Vitiello,1970 from the Mediterranean ... -
Nematode Community Structure along the Continental Slope off the Kenyan Coast, Western Indian Ocean
(College of Biological and Physical Sciences, University of Nairobi, 2004)Metazoan meiofauna and in particular nematode densities, diversity, community structure were studied in relation to water depth (20 m, 50 m, 500 m, 1000 m and 2000 m) along four bathymetric transects in the Western Indian ... -
Two New Antiprotozoal 5-Methylcoumarins from Vernonia brachycalyx
(Department of Chemistry, 1997)Two new isomeric 5-methylcoumarins, 2‘-epicycloisobrachycoumarinone epoxide (1) and cycloisobrachycoumarinone epoxide (2), have been isolated from the roots of Vernonia brachycalyx by means of bioactivity-guided fractionation. ... -
Joint three-dimensional inversion of gravity and magnetic data from Jombo Hill alkaline complex, Kenya
(Department of Geology, University of Nairobi, 1987) -
Bioactive compounds from some Kenyan ethnomedicinal plants: Myrsinaceae, Polygonaceae and Psiadia punctulata
(University of NairobiDepartment of Chemistry, University of Nairobi, 2002-10)There are several described medicinal plants in Kenya from a flora of approximately 10,000 members. Strong cross-medical information from the 42 ethnic groups points to the high potential of some of these species. The ... -
Extending the Grammatical Framework with Swahili Translation Capability
(University of NairobiCollege of biological and physical science, 2010) -
Determination of sphingosine kinase 2 activity using fluorescent sphingosine by capillary electrophoresis
(College of Biological and Physical Sciences, University of Nairobi, 2011)The study of sphingosine and sphingosine-1-phosphate is now widespread due to their immense role as intra- and extracellular messenger molecules. The balance and interplay of these ceramide metabolites is dependent on the ... -
Developing an Open source spell checker for Gikuyu
(University of NairobiCollege of Biological and physical science, 2010)In this paper, we describe the development of an open source spell checker for Gikuyu language using the Hunspell language tools. We explore the morphology of Gikuyu, highlighting the inflection of various parts of speech ...