ABSTRACT Ozone (O3) is an allotrope of oxygen occurring naturally in the earth’s atmosphere. Its importance in environmental issues is well documented and cannot be overemphasized. Ozone reacts with carbon-carbon multiple bonds such as in alkenes via the ozonolysis process. The first step of ozonolysis involves the formation of an important but very unstable primary ozonide (POZ) which after formation, immediately rearranges to the more stable secondary ozonide (SOZ). Due to its instabilit...
ABSTRACT Three medicinal plant parts, including the leaves of Senna alata, Ricinus communis and the stem bark of Lannea barteri were used for the current study. The aim was to investigate the antimicrobial effect of the crude extracts alone, their combinations and the crude extracts formulated individually with polyethylene glycol (PEG) and Shea butter, as well as phytochemical screening of the medicinal plants crude extracts. The microorganisms employed in this study were E. coli, S. aureus...
Abstract The pollution of rivers and lakes by n~tural and human activities is causing some concern thc world over because of the problems it poses to mankind's existence 2 (~epple, ,973'; Hakanson, 1974 ; Bryce-jmitl , 1975~; 4 Hodges, 1977 ; Sada et al, 1%a5, Faculty of Law, 6 University of Ibadan 1988 , His Holiness, Pcpe John Paul XI, 1 9w7). Industrial wheels and products, natural disasters such as floods, explosions and earthqunkcs 1 we continued to pollute the environment including rive...
ABSTRACT The study focused on analysing geospatial internet customer satisfaction levels, using the Geographic Information System (GIS) technology. The aim of the study was to investigate how demographic and economic factors influence satisfaction levels. The study followed a quantitative design and employed the systematic sampling method to select a sample of 248 potential internet users. A structured self-administered questionnaire was used to collect data from selected samples. The statis...
ABSTRACT Hawked foods are cheap and easily accessible and have met the food needs of people in many cities and towns of developing countries. This study was aimed at ascertaining the diversity of microbial contaminants in foods hawked in Nsukka town. Seven different food samples of cooked foods hawked in Nsukka were examined for the presence of bacterial and fungal contaminants using the streak plate method on sterile nutrient agar plates and SDA plates respectively. The foods included; pige...
Abstract The Kavango region is extensively involved in agriculture and is also known to be dominated by sandy arenosols. The bad soils in the region, which have poor nutrients and water holding capacity, combined with climate change have contributed to the reduction in yield of most crops grown in the area. One of the aims of this study was to isolate and identify cowpea nodule symbionts from soils in the Kavango Region while the other was to determine cowpeas’ response to bio-inoculants b...
Abstract Motor Vehicle Traffic Crashes (MVTC) are one of the leading causes of death and disability in the world, especially in developing countries. Despite Namibia having a well- developed road network, MVTC are the third highest cause of death in the country with 23.9 per 100 000 MVTC fatality rate recorded. This study was conducted in Namibia to model factors affecting the severity of injuries from MVTC. The study purpose was to examine the effects of human, crash/accident types, environ...
ABSTRACT Physicochemical and bacteriological analyses of borehole water samples were randomly collected from ten boreholes that supply drinking water to various communities of Aninri, Awgu and Oji River Local Government Areas of Enugu, Nigeria. The boreholes were sampled in both dry and rainy seasons. The following physicochemical parameters: pH, temperature, colour, electrical conductivity, turbidity, total dissolved solids, hardness, calcium, magnesium, sodium, potassium, alkalinity, acidi...
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...