Faculty of Science & Technology (FST): Recent submissions
Now showing items 21-40 of 4283
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COVID-19 risk factors: The curious case of Africa's governance and preparedness Author links open overlay panel
(University of Nairobi, 2021)COVID-19 is now established in Africa, and requires appropriate prioritization of resources and customized control measures. Although there have been lower than predicted number of COVID-19 cases (6,839,159 (3.4% of global ... -
In Vitro Antimicrobial and Antiproliferative Activities of the Root Bark Extract and Isolated Chemical Constituents of Zanthoxylum Paracanthum Kokwaro (Rutaceae)
(University of Nairobi, 2020)Abstract: Zanthoxylum paracanthum Kokwaro (Rutaceae) is an endemic Kenyan and Tanzanian plant used in folk medicine by local populations. Although other Zanthoxylum species have been studied, only Z. paracantum stem ... -
Prioritization of Loita Maasai Medicinal Plants for Conservation
(University of Nairobi, 2021)Medicinal plants provide biodiversity-based ecosystem services including health to many communities around the world and therefore, medicinal plant conservation is vital for sus- tainability. Here, we identify medicinal ... -
The Chemosystematics of the Genus Zanthoxylum L. (Rutaceae) in Kenya
(Kaigongi MM, Lukhoba CW. "The chemosystematics of the genus Zanthoxylum L.(Rutaceae) in Kenya." Biochemical Systematics and Ecology. 2021; 98, :104319., 2021)ackground and aim There is currently a significant taxonomic confusion in the genus Zanthoxylum which has a wide application in Kenyan herbal medicine. The significance of proper identification/classification of medicinal ... -
Cytotoxic Flavonoids From the Seeds of Dracaena Steudneri Engl Against Leukemia Cancer Cell Lines
(University of Nairobi, 2022)Background: Leukemia is the most common type of childhood cancer. Numerous flavonoids isolated from plants have been reported as potential chemotherapeutic agents against malignant growth while taking care of healthy c ... -
Antiplasmodial and Antimicrobial Activities of Ent- Abietane Diterpenoids From the Roots of Suregada Zanzibariensis
(University of Nairobi, 2022)The root extract ofSuregada zanzibariensisBaill. afforded six previ-ously describedent-abietane diterpenoids, namely 7-oxo-ent-abieta-5(6),8(14),13(15)-trien-16,12-olide (1), mangiolide (2),8,14b:11,12a-diepoxy ... -
Potential Antibacterial Pharmaceuticals From the Flora of Africa
(University of Nairobi, 2022)The present chapter highlights the antibacterial potential of nine highly active compounds isolated from the African medicinal plants: 8,8-bis-(dihydroconiferyl)- diferulate, buesgenine, candidone, diospyrone, ferruginin ... -
Laboratory and Field Performance of Metarhizium Anisopliae Isolate Icipe 41 for Sustainable Control of the Invasive Fall Armyworm Spodoptera Frugiperda (Lepidoptera: Noctuidae)
(University of Nairobi, 2022)To overcome the negative impacts of invasive fall armyworm (FAW), this study assessed the laboratory and field efficacy of aqueous and oil-based formulations of Metarhizium anisopliae ICIPE 41 as an alternative source ... -
Antibacterial Activities of Thirteen Naturally Occuring Compounds From Two Kenyan Medicinal Plants: Zanthoxylum Paracanthum (Mildbr) Kokwaro (Rutaceae) and Dracaena Usambarensis Engl. (Asparagaceae) Against MDR Phenotypes
(University of Nairobi, 2022)The antibacterial potency of thirteen compounds reported from two distinct genera, Zanthoxylum (Rutaceae) and Dracaena (Asparagaceae) against a panel of sensitive and multi-drug resistant Gram-positive and Gram-negative ... -
Phenotypic characterization of phage vB_vcM_Kuja
(University of Nairobi, 2023)Bacteriophage therapy targeting the increasingly resistant Vibrio cholerae is highly needed. Hence, studying the phenotypic behavior of potential phages under different conditions is a prerequisite to delivering the phage ... -
Mathematical competitions in Africa: their prevalence and relevance to students and teachers
(University of Nairobi, 2022)Mathematical competitions feature in most developed countries as a part of the secondary school experience, but to a lesser extent in developing countries. In this paper we investigate how widespread these competitions are ... -
Direct rapid quality assurance analysis of complex matrix materials: A chemometrics enabled energy dispersive X-ray fluorescence and scattering spectrometry application
(University of Nairobi, 2022)Compared to energy dispersive X-ray fluorescence (EDXRF) that is limited to analysis of elements (Z ≥ 13) via fluorescence and which is hardly direct, energy dispersive X-ray fluorescence and scattering (EDXRFS) spectrometry ... -
The Source Rock Evaluation and Hydrocarbon Potential of the Cretaceous Rocks from Chalbi Basin, Block 10a of the Anza Rift based on Lopatin–Waples Method
(AJPS, 2022-12-16)The Anza Rift is a northwest-southeast trending sedimentary basin located in northern Kenya. This is one of the remaining underexplored frontier exploration areas possessing high potential in hydrocarbon discoveries ... -
Impacts of hydro climatic conditions on lesser flamingo, Phoeniconaias minor, Geoffroy populations in three Kenyan alkaline lakes.
(AJPS, 2022-12-31)Hydro climatic conditions are critical factor determinants of lesser flamingo ecology in the alkaline Lakes of Nakuru, Elementaita and Bogoria in Kenya. Based on lake levels, rainfall and ... -
Optimised germination protocol for jackfruit seeds and evaluation of methods for extraction of DNA suitable for genetic analysis
(JPPS, 2022-08-18)Jackfruit (Artocarpus heterophyllus) is an underutilised plant that is promising in curbing food and nutritional security in sub-Saharan Africa. However, high level of secondary metabolites in its tissues significantly ... -
Photo-thermal Conversion Efficiency of Textured and Untextured Aluminum Substrate Coated With Titanium Dioxide (Tio2)-bound Cufemno4 Absorber
(University of Nairobi, 2020)The possibility of obtaining thermal energy from the sun for household bathing and washing has resulted to growth in market for solar thermal applications with new types of solar absorbers currently being investigated ... -
Membrane Permeabilization and Antimicrobial Activity of Recombinant Defensin-d2 and Actifensin Against Multidrug-resistant Pseudomonas Aeruginosa and Candida Albicans
(University of Nairobi, 2022)Antimicrobial resistance requires urgent efforts towards the discovery of active antimicrobials, and the development of strategies to sustainably produce them. Defensin and defensin-like antimicrobial peptides (AMPs) are ... -
The Evolving Cultural Values and Their Implications on the Maasai Pastoralists, Kajiado County, Kenya
(University of Nairobi, 2021)The Maasai pastoralists inhabiting Kajiado County have been known for their rich cultural values which have sustained their livelihoods. However, these cultural practices are evolving under the swift development context ... -
Atmospheric Controls on Precipitation Isotopes and Hydroclimate in High-elevation Regions in Eastern Africa Since the Last Glacial Maximum
(University of Nairobi, 2021)Tropical Africa experienced large changes in hydroclimatic conditions since the Last Glacial Maximum (LGM), ∼26.5 to 19 thousand years (ka or kyr) ago. The hydrogen isotopic composition of fossil leaf waxes (δD wax ), ... -
Assessing the Ecological Impacts of Transportation Infrastructure Development: a Reconnaissance Study of the Standard Gauge Railway in Kenya
(University of Nairobi, 2021-01-29)Transportation infrastructure, such as railways, roads and power lines, contribute to national and regional economic, social and cultural growth and integration. Kenya, with support from the Chinese government, is currently ...