Browsing School of Biological and Physical Science by Title
Now showing items 41-60 of 925
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Analysis of the impact of domestication of Warburgia ugandensis (Sprague) on its genetic diversity based on amplified fragment length polymorphism
(African Journal of Biotechnology, 2016)Warburgia ugandensis Sprague (Canellaceae) occurs in East and Central Africa and is an important multipurpose tree species. Over-exploitation of natural forests for medicinal purposes and clearance for farming threaten the ... -
Analytical Absorption Cross-Section for Photon by a Hydrogen 2s Atom
(IOP Publishing, 2011-04)We calculate the absorption cross-section for photon by a hydrogen 2s atom using the quantum-classical approximation for the total photo cross-section of many electron atoms. With the application of the first-order term ... -
Annealing efect on the structural and optical behavior of ZnO:Eu3+ thin flm grown using RF magnetron sputtering technique and application to dye sensitized solar cells
(Nature Publishing Group, 2020)Eu-doped ZnO (ZnO:Eu3+) thin flms deposited by RF magnetron sputtering have been investigated to establish the efect of annealing on the red photoluminescence. PL spectra analysis reveal a correlation between the ... -
Annotated checklist of the vascular plants of Kakamega Forest, Western Province, Kenya
(Nature Kenya/East African Natural History Society, 2012-12)An annotated checklist of the Kakamega Forest in Kakamega District is presented. The checklist includes the plants found mainly in Buyangu National Reserve, and the Nature Reserves of Isecheno and Yala. It also includes ... -
Anomalous photovoltaic behavior under illumination of γ-In2Se3 nanostructures used as hole transport layer in organic solar cell
(Pergamon, 2022)Indium selenide is currently receiving tremendous attention in device application and studies related to two dimensional nanostructured technologies. Non-layered γ-In2Se3, which is a stable phase at room temperature, was ... -
Antagonistic Potential Of Selected Fungal And Bacterial Isolates From Rhizosphere Of Sugarcane Variety Co 421 Against Sporisorium Scitamineum In Kibos, Kisumu County, Kenya
(2016)Sugarcane smut disease caused by a fungus Sporisorium scitamineum is a limiting factor to cane production in Kenya. It is threatening the sugar industry due to its effect on cane quality and yields. Sugarcane (Saccharum ... -
Anti-Jaynes-Cummings interaction of a two-level atom with squeezed light: A comparison with the Jaynes-Cummings interaction
(Maseno University, 2022)We considered the anti-Jaynes-Cummings (AJC) interaction of a two-level atom in an initial ground state interacting with a field mode in an initial squeezed coherent state at arbitrary values of squeeze parameter r and ... -
The anti-Jaynes-Cummings model is solvable : quantum Rabi model in rotating and counter-rotating frames ; following the experiments
(Cornell University, 2021)This article is a response to the continued assumption, cited even in reports and reviews of recent experimental breakthroughs and advances in theoretical methods, that the antiJaynes-Cummings (AJC) interaction is an ... -
Anti-plasmodial and larvicidal effects of surface exudates of Gardenia ternifolia aerial parts
(University of Nairobi, 2010)Various parts of Gardenia ternifolia (leaves, roots and stem bark) have been reported by traditional healers as a remedy against malaria fever. The aerial parts are coated with shiny materials rich in flavonoid aglycones. ... -
ANTIBACTERIAL ACTIVITY OF CRUDE EXTRACTS OF Solanum incanum AGAINST Escherichia coli and Staphylococcus aureus
(Research gate, 2021)Human pathogenic microorganisms have developed resistance in response to indiscriminative use of commercial drugs. Plants produce many secondary metabolites with microbiocidal activity hence their use in traditional ... -
Antibiotic resistance of Escherichia coli from humans and black rhinoceros in Kenya
(Springer Nature, 2019-12-07)Upsurge of antibiotic resistance in wildlife poses unprecedented threat to wildlife conservation. Surveillance of antibiotic resistance at the human–wildlife interface is therefore needed. We evaluated differences in ... -
Antibiotic Resistance of Escherichia coli from Humans and Black Rhinoceroses in Kenya
(Springer US, 2019-12-07)Upsurge of antibiotic resistance in wildlife poses unprecedented threat to wildlife conservation. Surveillance of antibiotic resistance at the human–wildlife interface is therefore needed. We evaluated differences in ... -
Antibiotic Resistance of Escherichia coli from Humans and Black Rhinoceroses in Kenya
(Springer US, 2020)Upsurge of antibiotic resistance in wildlife poses unprecedented threat to wildlife conservation. Surveillance of antibiotic resistance at the human-wildlife interface is therefore needed. We evaluated differences in ... -
Anticancer activity of Eugenia jambolana seeds against Hep2 cell lines
(ResearchGate, 2015)Cancer is a life-threatening disease and leads to high rates of mortality worldwide, after cardiovascular disease, is the second leading cause of death. Investigations for finding new plant based anticancer compounds ... -
Antimicrobial activities of crude leaf extract of Solanum Nigrumon Fusarium Oxysporum and Pseudomonas Syringae cultures in Maseno (Kenya)
(Journal of Asian Scientific Research, 2017)Solanum nigrum (black nightshade) is a common short lived perennial plant found in the Kenyan highlands and worldwide in distribution. It is a small highly branched plant that rarely adopt a habit of more than a foot in ... -
Antimicrobial activities of microorganisms obtained from the gut of Macrotermes michaelseni in Maseno, Kenya
(Journal of Applied Biology and Biotechnology, 2015-11)The gut of termites is a major source of termicin and spinigerin antibiotics. The termite gut thus presents a novel habitat for searching new antibiotic producing isolates. The objective of this study was to investigate ... -
Antimicrobial activity of southern African medicinal plants with dermatological relevance: From an ethnopharmacological screening approach, to combination studies and the isolation of a bioactive compound
(Elsevier, 2013)Ethnopharmacological relevance Ethnobotanical reports on more than 100 southern African medicinal plants with dermatological relevance have been highlighted, yet there is still limited scientific data to support claims ... -
Antimicrobial compounds and Antimicrobial Activity of Extracts of Thespesia garckeana F. Hoffm. on Candida albicans, Staphylococcus aureus and Escherichia coli
(AGRIS, 2022)Plant products as antimicrobials have received serious attention in the recent years. Herbal medicines form a significant role in African ethnomedicine. Thespesia garckeanaF. Hoffm.isan important herbal medicinal plant ... -
Antimicrobial Compounds from Terminalia brownii against Sweet Potato Pathogens
(Bentham Science Publishers, 2011-10)Phytochemical evaluation of Terminalia brownii extracts led to the isolation of five compounds namely - sitosterol, stigmasterol, monogynol A, betulinic acid and arjungenin. Their structures were established by ...