Faculty of Science & Technology (FST): Recent submissions
Now showing items 261-280 of 4283
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Electronically Divergent Triscyclometalated Iridium(III) 2-(1-naphthyl)pyridine Complexes and Their Application in Three-Component Methoxytrifluoromethylation of Styrene
(University of Nairobi, 2019)A systematic study of the photophysical and electrochemical properties of triscyclometalated homoleptic iridium(III) complexes based on 2-(1-naphthyl)pyridine (npy) ligands is presented. A systematic investigation of ligand ... -
Cytotoxicity Of Fagaramide Derivative And Canthin-6-one From Zanthoxylum (Rutaceae) Species Against Multidrug Resistant Leukemia Cells
(University of Nairobi, 2019)In our continuous search for cytotoxic compounds from the genus Zanthoxylum, chromatographic separation of the MeOH/CH2Cl2 (1:1) extract of Z. chalybeum yielded one new alkamide; 4-(isoprenyloxy)-3-methoxy-3,4-deoxymethy ... -
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 ... -
Expressed Centromere Specific Histone 3 (CENH3) Variants in Cultivated Triploid and Wild Diploid Bananas (Musa spp.).
(2017-06-29)Centromeres are specified by a centromere specific histone 3 (CENH3) protein, which exists in a complex environment, interacting with conserved proteins and rapidly evolving satellite DNA sequences. The interactions may ... -
Spectrophotmetric evaluation of rotenone extraction from leaves and seeds of mature Tephrosia vogelii plant
(University of Nairobi, 2018)The percentage yield of rotenone extracted from Tephrosia vogelii leaves and seeds was investigated. Ten samples of well ground leaves and seeds were each subjected to extraction in soxhlet extraction system using ... -
Spectrophotmetric evaluation of rotenone extraction from leaves and seeds of mature Tephrosia vogelii plant
(University of Nairobi, 2018)The percentage yield of rotenone extracted from Tephrosia vogelii leaves and seeds was investigated. Ten samples of well ground leaves and seeds were each subjected to extraction in soxhlet extraction system using ... -
Characterization of Kenyan ceramics for production of medium duty alumina firebrick incinerator linings
(University of Nairobi, 2019)The aim of this study was to evaluate locally available ceramic raw materials for the manufacture of Medium Duty Alumina Refractory Firebrick for incinerator lining.The clays were collected from two sites, Eburru in Nakuru ... -
Biopiracy Versus One-world Medicine–from Colonial Relicts to Global Collaborative Concepts
(University of Nairobi, 2019)Background Practices of biopiracy to use genetic resources and indigenous knowledge by Western companies without benefit-sharing of those, who generated the traditional knowledge, can be understood as form of ... -
Two Lignans Derivatives and Two Fusicoccane Diterpenoids From the Whole Plant of Hypoestes Verticillaris (L.f.) Sol. Ex Roem. & Schult
(University of Nairobi, 2019)Bioassay-guided screening of Hypoestes verticillaris whole plant CH2Cl2:MeOH (1:1) extract for anti-plasmodial activity yielded four new compounds: two lignans 2, 6-dimethoxysavinin (1), 2,6-dimethoxy-(7E)-7,8-dehydrohel ... -
Electronically Divergent Triscyclometalated Iridium (Iii)2-1-naphthyl)pyridine Complexes and Their Application in Three Component Methoxytrifluoromethylation of Styrene.
(University of Nairobi, 2019)A systematic study of the photophysical and electrochemical properties of triscyclometalated homoleptic iridium(III) complexes based on 2-(1-naphthyl)pyridine (npy) ligands is presented. A systematic investigation of ligand ... -
Prevalence and genotyping of Echinococcus granulosus in sheep in Narok County, Kenya.
(University of Nairobi, 2018)Cystic echinococcosis (CE) is a zoonotic disease caused by the larval stage of Echinococcus granulosus species (sensu lato, s.l.). In East Africa, several species/strains occur in livestock, wildlife, and humans, but there ... -
Climate change impacts detection in dry forested ecosystem as indicated by vegetation cover change in -Laikipia, of Kenya.
(University of Nairobi, 2018)The objective of the study was to detect and identify land cover changes in Laikipia County of Kenya that have occurred during the last three decades. The land use types of study area are six, of which three are the main ... -
Containment Studies of Transgenic Mosquitoes in Disease Endemic Countries: The Broad Concept of Facilities Readiness.
(University of Nairobi, 2018)Genetic strategies for large scale pest or vector control using modified insects are not yet operational in Africa, and currently rely on import of the modified strains to begin preliminary, contained studies. Early ... -
"We don't want our clothes to smell smoke": changing malaria control practices and opportunities for integrated community-based management in Baringo, Kenya.
(University of Nairobi, 2018)BACKGROUND: The decline in global malaria cases is attributed to intensified utilization of primary vector control interventions and artemisinin-based combination therapies (ACTs). These strategies are inadequate in ... -
Mapping potential Anopheles gambiae s.l. larval distribution using remotely sensed climatic and environmental variables in Baringo, Kenya.
(University of Nairobi, 2018)Anopheles gambiae s.l. (Diptera: Culicidae) is responsible for the transmission of the devastating Plasmodium falciparum (Haemosporida: Plasmodiidae) strain of malaria in Africa. This study investigated the relationship ... -
Discovery of a novel species, Theileria haneyi n. sp., infective to equids, highlights exceptional genomic diversity within the genus Theileria: implications for apicomplexan parasite surveillance.
(University of Nairobi, 2018)A novel apicomplexan parasite was serendipitously discovered in horses at the United States - Mexico border. Phylogenetic analysis based on 18S rDNA showed the erythrocyte-infective parasite to be related to, but distinct ... -
Detection of counterfeit brand spirits using 1H NMR fingerprints in comparison to sensory analysis.
(University of Nairobi, 2018)Beverage fraud involving counterfeiting of brand spirits is an increasing problem not only due to deception of the consumer but also because it poses health risks e.g. from possible methanol admixture. Suspicious spirit ... -
Short proline-rich lipopeptide potentiates minocycline and rifampin against multidrug- and extensively drug-resistant pseudomonas aeruginosa.
(University of Nairobi, 2018)A series of 16 short proline-rich lipopeptides (SPRLPs) were constructed to mimic longer naturally existing proline-rich antimicrobial peptides. Antibacterial assessment revealed that lipopeptides containing hexadecanoic ... -
Mycobiota and co-occurrence of mycotoxins in South African maize-based opaque beer.
(University of Nairobi, 2018)Beer, a beverage consumed throughout the world, is mainly derived from cereals. In this study, fungal and mycotoxin contamination, as well as the physicochemical properties of maize-based opaque beer (umqombothi) obtained ...