ABSTRACT In order to investigate the interaction mechanism between Cadmium selenide (CdSe) quantum dots (QDs) and Moringa oleifera seeds coagulant protein (MOCP), CdSe QDs with hexagonal phase and crystalline size of 3.1-8.1 nm were synthesized in presence of organic solvent Trioctyl-n-phosphine oxide (TOPO) and Trioctyl phosphene (TOP) using colloidal synthesis. The purified mesoporous M. oleifera seeds coagulant protein (MOCP) with a surface area of 8.4134 m2 /g, was extracted from M. olei...
ABSTRACT Commiphora wildii (Omumbiri), a member of the Burseraceae family, is the most important resin‒producing plant used by Himba women for perfume. The Opuwo Processing Facility (OPF) is currently producing Omumbiri essential oil which they supply to companies in Namibia, South Africa, Germany and France. However, most of their products are sold in Southern Africa, and supply outweighs the demand. OPF is currently working on improving the reproducibility of production of the oil to mak...
ABSTRACT The aims of this study were to conduct an ethnobotanical survey on indigenous knowledge of plants traditionally used as herbs and spices in Kabbe constituencies of the Zambezi region, evaluate their antimicrobial activity, determine their synergistic effects, and further elucidate their potential mechanism of action. Using semistructured interviews and closed-end questionnaires, ethnobotanical data were collected from local informants in fourteen villages of Kabbe constituencies bet...
ABSTRACT This research was conducted to determine the contribution of mushroom to the Physico-chemical, nutritive and sensory properties of hamburger. Four burger samples were prepared with different combinations (0%, 20%, 40% and 60%) of mushroom. The inclusion of mushroom caused a general decrease in the protein, fat, moisture, ash, mineral element, vitamin as well as a soluble protein and an increase in the carbohydrate contents of hamburgers. The proximate and soluble protein contents of...
ABSTRACT The goal of the study was to determine the plants used in Namibia to treat symptoms linked to gastro-intestinal tract infections (GITI) and to verify their antimicrobial activity. An ethnobotanical survey was conducted to document plants used in Namibia to treat symptoms related to GITI, and eighteen plant species (from 16 families) were collected and identified. Aqueous and organic extraction methods were used to obtain crude extracts that were tested on Escherichia coli, Staphyloc...
ABSTRACT The adsorptive ability of mUCIn onto hydroxyapatite was evaluated based on its adsorptive amount and adsorptive strength. The adsorptive amount was determined by measuring the amount of mucin adsorbed onto hydroxyapatite while adsorptive strength was determined by measuring the amount of mucin remaining adsorbed after rinsing. The amount of mucin adsorbed onto the substrates in all cases followed the order Sigma grade HAP> synthesized HAP> CHP and generally increased with increa...
ABSTRACT Knowledge management is a field with a lot of potential that can benefit individuals as well as different types of organizations. Despite this fact, most organizations in Kenya have focused on knowledge storage, but have not adopted sharing of the stored knowledge. This study examined the adoption of mobile technology for knowledge management in Mahashakti Kenya Limited, Athi River. The study was guided by the following objectives: To assess the extent of adoption of mobile technolo...
Abstract The mathematical study of human pulse wave was studied with the view to gaining an insight into physiological situations. Fluid-Structure Interaction (FSI) in blood flow is associated with pressure pulse wave arising from ventricular ejection. Solution of the coupled system of non-linear PDEs that arose from the FSI was sought in order to determine pressure. Further study on pressure pulse waves showed that the Korteweg-de Vries (KdV) equations hold well for the propagation of nonl...
ABSTRACT Bacteriological and physicochemical properties of drinking water (tap, well and borehole) in Sokoto metropolis were investigated to determine the level of contamination and the persistence of target organisms. A total of 270 samples comprising of 90 well water samples, 90 tap water samples and 90 boreholes water samples were obtained from some parts of Sokoto metropolis and analyzed using standard procedures. Total coliform count, heterotrophic plate count, physico-chemical prop...
ABSTRACT In this dissertation, the problems of Magnetohydrodynamic unsteady free convection flow past vertical porous plates with suction and oscillating boundaries are studied. The linear and nonlinear partial differential equations governing the flow problems and boundary conditions were transformed into dimensionless form, and the perturbation techniques applied in getting analytical solutions for the velocity, temperature, the skin friction coefficient and Nusselt number. It was obse...
ABSTRACT The composition and bleaching properties of Nteje clay in comparison with two commercially available adsorbents (activated carbon and fuller’s earth) were investigated to study its competence for use as an alternative to high cost imported adsorbents. The modification of the raw clay sample was carried out by acid activation to enhance the surface area of the clay by exchange of octahedral cations e.g Al3+, Fe3+ and Mg2+ with H+ ions which led to the modification of the clay cryst...
Abstract -. "Since. statisticians do not usually perform an experiment, their claim to attention when they write on experimentation requires some explanations", William Cochran and Gertrude Cox (1957). Block designs are widely used in many fields of research. Their most common type is the randomized (complete) block design. It is not applicable in all circumstances. If the numbers of (elements are too large to preserve homogeneous conditions within complete blocks or the sizes of blocks are d...
ABSTRACT Rampant cyber incidences in Kenya targeting banks call for mediations beyond existing cybersecurity principles. This quantitative study sought to collate multi-domain variables from previous works to develop a framework for measuring cyber-resilience in Kenyan banks known as the Cyber-resilience Framework for Banks (CRF4Banks). The framework consists of eight key cyber-resilience constructs and their constituent variables, identified from empirical research and literature. Cyber-res...
ABSTRACT The search for more hydrocarbons in some old fields in the onshore and shelf parts of the Niger Delta Basin is gradually becoming a major avenue for increasing the nation’s reserves. Some asset teams now have new mandates to re-evaluate key hydrocarbon reservoirs in such fields for effective optimization and production. The major reason for the re-evaluation is that some of the reservoirs between the Late Eocene and Early Oligocene (34.0 Ma and 31.3 Ma) were wrongly tagged and ma...
ABSTRACT Infectious diseases have become problematic throughout the world, threatening individuals who come into contact with pathogens responsible for transmitting diseases. Pneumoccocal pneumonia, a secondary bacterial infection follows an influenza A infection, responsible for morbidity and mortality in children, elderly and immuno–comprised groups. The aims of this Thesis are to; develop a mathematical model for within–host co–infection of influenza A virus and pneumococcus, model ...