Browsing Faculty of Science & Technology (FST) by Title
Now showing items 396-415 of 4283
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Benson Munyali Wamalwa; Makiko Sakka; Paul Mwanza Shiundu; Kunio Ohmiya; Tetsuya Kimura; and Kazuo Sakka,
(Department of Chemistry, 2006) -
The benthic macrofauna community of Kenyan waters of Lake Victoria
(Kluwer Academic PublishersDepartment of Zoology, University of Nairobi,Kisumu Research Centre, Kenya Marine and Fisheries Research Institute,, 2001)The benthic macroinvertebrates in the Kenya waters of Lake Victoria (ca. 1400 km2) were surveyed during four 10 day sampling periods in February, April, August and November 1984. Fourty three taxonomic groups were recorded. ... -
Bentonite (clay montmorillonite) as a template for electrosynthesis of thyroxine
(Department of Chemisty, University of Nairobi, 1999)The results discussed in this paper show that modification of the working electrode surface with clay montmorillonite (bentonite) enhances the iodine redox process and electrosynthesis of thyroxine. This is observed from ... -
Bentonite used as a host matrix in the study of ester hydrolysis
(University of Nairobi, 2015)Abstract: In this paper results obtained on the kinetics of este r adsorption on raw, acid treated and pre - heated bentonite have bee n presented. T he infra - red profiles and the XRF spectra of ... -
Benzidine catalysis of aniline electro- polymerization on a carbon graphite electrode
(University of NairobiCollege of Biological and Physical Sciences,University of Nairobi, 1993) -
Benzo[ b]naphtho[2,1- d]furans and 2-Phenylnaphthalenes from Streblus usambarensis
(University of Nairobi, 2023)Three new benzo[b]naphtho[2,1-d]furans, usambarins A-C (1-3), five new 2-phenylnaphthalenes, usambarins D-H (4-8), a new flavan (9), and a new phenyl-1-benzoxepin (10) as well as two known compounds (11 and 12) were isolated ... -
Benzo[ b]naphtho[2,1- d]furans and 2-Phenylnaphthalenes from Streblus usambarensis
(University of Nairobi, 2023)Three new benzo[b]naphtho[2,1-d]furans, usambarins A-C (1-3), five new 2-phenylnaphthalenes, usambarins D-H (4-8), a new flavan (9), and a new phenyl-1-benzoxepin (10) as well as two known compounds (11 and 12) were isolated ... -
A Benzochromene from the Roots of Pentas Bussei
(University of Nairobi, 2002)A new homoprenylated benzochromene, methyl-5,10-dihydroxy-7-methoxy-3-methyl-3-[4-methyl-3-pentenyl]-3H-benzo[f]chromene-9-carboxylate (1), was isolated from the roots of Pentas bussei, collected from Kenya. The structure ... -
Benzoquinone derivatives of Myrsine africana and Maesa lanceolata
(College of Physical and Biological Sciences, 2003-10)The fruits of Myrsine africana afforded two new benzoquinone derivatives, methylvilangin and methylanhydrovilangin. On the other hand, from the fruits of Maesa lanceolata two more novel compounds; 2,5-dihydroxy-3-(nonade ... -
Benzoquinones in kenyan myrsinaceae part III 1: A new 2, 3-dihydroxy alkyl-1, 4-benzoquinone (myrsinone) and 5-O-methyl embelin from Myrsine Africana
(Department of Chemistry, University of NairobiMeiji College of Pharmacy, Tokyo, Japan, 1992) -
Berger-Shaw inequalityfor n-Power quasinormal and w-hyponormal operators
(2014)Every reducible operator can be decomposed into normal and completely non-normal operators. Unfortunately, there are several non normal operators which are irreducible. However, every operator whose self-commutator is ... -
Beta-2 microglobulin as a marker of HIV disease status in Nairobi, Kenya.
(1993)Serum beta-2 microglobulin (beta 2-M) has prognostic value similar to lymphocyte profiles for predicting disease progression in those infected with the human immunodeficiency virus (HIV). However, the relationship between ... -
Beyond the vertical? Using value chains and governance as a framework to analyse private standards initiatives in Agri-food chains
(University of NairobiInstitute For Climate Change and Adaptation, 2011-09)The significance of private standards and associated local level initiatives in agri-food value chains are increasingly recognized. However whilst issues related to compliance and impact at the smallholder or worker level ... -
Biflavanoids of the Cycadales
(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 ... -
Biflavones of Dioon,
(University of NairobiCollege of biological and physical science, 1973)Seven biflavones, amentoflavone, bilobetin, sequoiaflavone, ginkgetin, sciadopitysin, 7,4 Œ,7 Œ,4triple prime-tetra-O-methylamentoflavone, and diooflavone (amentoflavone hexamethyl ether), were identified from extracts of ... -
Bilharziasis of the spinal cord
(School of Biological and Physical sciences, 1970) -
Binding and water solubility enhancement of 14C-benzo[a]pyrene by dissolved organic matter in freshwater in Kenya.
(University of Nairobi,Department of Chemistry,, 2006-12) -
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 ... -
Bioactive properties of tagetes minuta l.(asteraceae) essential oils: a review
(University of Nairobi, 2016)Mexican marigold (Tagetes minuta L.) and its accruing products have a long worldwide history of human uses such as food, therapeutics and aromatherapy which are inherent in the plant’s unique chemical composition and ...