Faculty of Science & Technology (FST): Recent submissions
Now showing items 441-460 of 4283
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Histomorphological changes in the cornea of the rat following monocular eyelid closure
(University of Nairobi, 2016)Objectives: The aim of this study was to describe structural changes in the cornea of the rat after monocular eyelid closure. Methods: Twenty-six Rattus norvegicus male rats aged three months were used. The rats were ... -
Chemical Composition And Antifungal Activity Of Essential Oils Of Tagetes Minuta (Asteraceae) Against Selected Phytopathogenic Fungi
(University of Nairobi, 2016)Over the years, management of plant pathogenic fungi has primarily relied on the use of synthetic chemical fungicides. However, in the recent past, exploration for biologically active compounds from plants with the aim ... -
Phytochemical profile and antioxidant capacity of leaves of moringa oleifera(lam) extracted using different solvent systems
(University of Nairobi, 2016)The present investigation evaluated the phytochemical composition and antioxidant capacity of leaves of Moringa oleifera cultivated in Kibwezi Kenya and extracted using different solvent systems. Qualitative screening of ... -
Plant parasitic nematode assemblages associated with sweet potato in Kenya and their relationship with environmental variables
(University of Nairobi, 2016)Sweet potato is one of the most important staple food crops consumed in Kenya and throughout Africa but yields are greatly reduced by plant parasitic nematodes (PPN). The aim of this study was to determine the prevalence ... -
Medicinal plants used for management of malaria among the Luhya community of Kakamega east sub-county, Kenya
(University of Nairobi, 2016)Background Malaria remains a major health problem worldwide especially in sub-Saharan Africa. In Kenya, 80% of the population is at risk of contracting the disease. Pregnant mothers and children under five years are the ... -
Experience in social engineering by ecommerce platforms in Kenya
(University of Nairobi, 2016)eCommerce systems have been targeted by cyber criminals as they receive and use the money, rely on technology, outsourced services and use of payment technologies like mobile money and online banking channels to carry ... -
Antioxidant activities of flavonoid aglycoes from Kenyan gardenia ternifolia schum and thonn
(University of Nairobi, 2016)Phytochemical investigation of surface exudates of the leaves of Gardenia ternifolia resulted to characterization of four flavonoids; 3,5,3′-trihydroxy-7,4′-dimethoxyflavone (1), 5,7-trihydroxy-4′methoxyflavone (2), ... -
A robust liquid chromatographic method for confirmation of drug stability of azithromycin in bulk samples, tablets and suspensions
(University of Nairobi, 2017)A simple, isocratic and robust RP-HPLC method for the analysis of azithromycin was developed, validated and applied for the analysis of bulk samples, tablets and suspensions. The optimum chromatographic conditions for ... -
Overview of governmental support across Africa towards the development and growth of herbal medicine
(University of Nairobi, 2017)Traditional African Medicine (TAM) is our socioeconomic and sociocultural heritage, providing service to over 80% of the population in Africa. Although, it has come a long way from the times of our ancestors, not much ... -
Semi-synthetic pyrazoline derivatives from polygonum senegalense chalcones and their anti-microbial activities
(University of Nairobi, 2017)This paper describes the semi-synthesis and anti-microbial activity of novel pyrazoline derivatives of Polygonum senegalense chalcones. The study was carried out on the understanding that heterocycles ... -
Pyrazole, isoxazoline and bypyrimidine derivatives from polygonum senegalense and psiadia punctulata flavonoids and their anti- microbial activities
(University of Nairobi, 2017)Currently, researchers have given special attention to the synthesis of hetero cyclic compounds with nitrogen and oxygen five in five or six membered ring systems. This is mainly due to their wide range of biological ... -
Antiplasmodial Activities Of The Stem Bark Extract And Compounds Of Zanthoxylum Gilletii (De Wild) P.G. Waterman
(University of Nairobi, 2017)Introduction: Multidrug resistance remains a major obstacle hindering successful antimalarial chemotherapy. In the current study, 50% metha - nol in dichloromethane extract and six compounds from the ... -
Acute toxicity of the aqueous-methanolic moringa oleifera (lam) leaf extract on female wistar albino rats
(University of Nairobi, 2016)Background: Herbal preparations are widely assumed to be safe on oral administration and therefore the documentation of the toxic potential of some herbal concoctions used as medicine and nutrients is limited. Moringa ... -
Phytochemical Screening of Medicinal Plants of the Kakamega Country, Kenya Commonly Used against Cancer
(University of Nairobi, 2016)Phytochemical constituents of 35 selected anticancer medicinal plant extracts were analyzed by thin layer chromatography (TLC) for alkaloids, anthraquinones, xanthines, valepotriates, cardiac glycosides, flavonoids, essential ... -
Numerical simulation of vibration of horizontal cylinder induced by progressive waves
(University of Nairobi, 2016)Maritime structures often comprise cylinders of small diameter relative to the prevailing wave length. This paper describes the direct forcing immersed boundary simulation of the hydroelastic behaviour of a rigid, horizontal ... -
Pterocarpans and isoflavones from the root bark of millettia micans and of millettia dura
(University of Nairobi, 2016)From the CH2Cl2/CH3OH (1:1) extract of the root bark of Millettia micans, a new pterocarpan, (6aR,11aR)-7,8,9-trimethoxy-3-hydroxypterocarpan (1), named micanspterocarpan, was isolated. Similar investigation of the ... -
A robust magnetic resonance imaging method based on compressive sampling and clustering of sparsifying coefficients
(Kiragu H, Kamucha G, Mwangi E. A Robust Magnetic Resonance Imaging Method Based on Compressive Sampling and Clustering of Sparsifying Coefficients. Limassol, Cyprus ; 2016., 2016)This paper presents a novel and robust method for medical Magnetic Resonance Imaging (MRI). The proposed method utilizes the sparsity as well as clustering of the image coefficients in the wavelet transform sparsifying ... -
Pterocarpans and isoflavones from the root bark of millettia micans and of millettia dura
(University of Nairobi, 2016)From the CH2Cl2/CH3OH (1:1) extract of the root bark of Millettia micans, a new pterocarpan, (6aR,11aR)-7,8,9-trimethoxy-3-hydroxypterocarpan (1), named micanspterocarpan, was isolated. Similar investigation of the ... -
Kantis: A new Australopithecus site on the shoulders of the Rift Valley near Nairobi, Kenya
(University of Nairobi, 2016-05)Most Plio-Pleistocene sites in the Gregory Rift Valley that have yielded abundant fossil hominins lie on the Rift Valley floor. Here we report a new Pliocene site, Kantis, on the shoulder of the Gregory Rift Valley, which ... -
Multiple use patterns of medicinal trees in an urban forest in Nairobi, Kenya
(University of Nairobi, 2016-08)Medicinal plants support the healthcare needs of the most vulnerable human populations, including the rapidly increasing urban poor in developing countries. However, little is known about the role of urban forests in ...