Masters

Permanent URI for this community

https://ir.knust.edu.gh/handle/123456789/6

Browse

Browsing Masters by Author "."

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Exploring the potentials of mfensi clay for the production of garden stool
    (2021-06-14) Torsu, John Kojo; .
    Furniture and stool production have been in various shapes and forms usually with materials which are resistant to the harsh weather conditions such as wood, metal, plastic, bamboo and cement. Nevertheless, beauty and strength have become an integral part of outdoor furniture due to their numerous technological innovations and marketing. Today, cement has become the basic material for garden stool production with wood being the most dominating raw material. Critical observations and analysis into the mineralogical composition of Mfensi clay, compelled the researcher to aim at exploring the potentials of Mfensi clay for clay garden stool production. As a result, this research seeks to test for the potential properties of Mfensi clay, feldspar and silica for suitable clay body composition for the production of clay garden stools. To achieve these set objectives, the researcher used the qualitative research method, coupled with the experimental and the descriptive research designs to analyse and draw meaningful conclusions. The following three clay body compositions were subjected to shrinkage test, water absorption test and atterberg limits respectively. Clay body ‘A’ constituted 70% Mfensi clay, 10% feldspar and 20% silica. Clay body ‘B’ constituted 80% Mfensi clay, 10% feldspar and 10% silica whiles, clay body ‘C’, constituted 60% Mfensi clay, 20% feldspar and 20% silica. Conclusions drawn from these tests revealed that, clay body ‘A’ which constituted 70% Mfensi clay, 10% feldspar and 20% silica exhibited creditable physical and chemical properties that renders it more potent for clay garden stool production. It is recommended that, the Department of Integrated Rural Art and Industry, takes advantage of the properties in Mfensi for clay garden stools production.
  • Thumbnail Image
    Item
    Prevalence of common bacteria isolates and their susceptibility to antibiotics in malnourished children up to 5 years admitted at the maternal and child health hospital in Kejetia, Kumasi, Ghana
    (SEPTEMBER, 2018) Osei, Young Dorcas; .
    Malnutrition in children is the outcome of factors that are concerned poor food quality, insufficient food intake and recurring of infectious diseases. World Health Organization in 2011 estimated that 178 million children were stunted and 115 million children were underweight. Heikki in (2001) stated that the incidence and impact of life threatening bacterial infections in children across Africa have not been quantified and these bacterial infections can result in severe malnutrition. The study was to determine the prevalence of common bacteria isolates in malnourished children who are upto 5 years admitted at the Maternal and Child Health Hospital. Samples of urine, blood and stool were taken from 200 malnourished children alongside with administration of questionnaires. Samples were subjected to laboratory analysis such as culture and sensitivity and biochemical test for identification of bacteria. Out of 200 malnourished children, severe acute malnutrition (SAM) was found in 71.1% and 27.7% were moderately malnourished. Children (65.0%) were marasmic and 35.0% suffered from kwashiorkor. Of the malnourished children, who 63.5% had diarrhoea, 49.5% presented with vomiting and 40.5% presented with fever. Bacteria isolated from urine were Klebsiella sp (43.3%), Escherichia coli (30.0%), Pseudomonas sp (13.3%), Salmonella sp (6.7%), Enterobacter sp (3.3%) and Proteussp (3.3%). For blood samples, Staphylococcus aureus (53.6%) was the highest isolate, followed by Streptococcus sp (25.0%). Out of 38 stool samples, Escherichia coli (42.1%) was the highest isolated species followed by Klebsiella sp (21.1%) and Proteus sp (18.4%). Escherichia coli, Proteus sp, Salmonella sp and Enterobacter sp were resistant to 100% Ceftriaxone. Pseudomonas sp and Salmonella sp were resistant to 100% Ampicillin. Staphylococcus aureus (100%) was resistant to Ampicillin, Gentamicin and Cefuroxime. Streptococcus sp (100%) was susceptible to Gentamicin, 71.4% was susceptible to Azithromycin and 57.1% was vi susceptible to Chloramphenicol. Breastfeeding, complementary feeding, how the child is fed, daily feeding periods, surrounding where food is bought or prepared and storage of feeding tools of malnourished children were found to be factors that predisposed children to malnourishment.
  • Thumbnail Image
    Item
    Stone’s theorem and its applications to particle properties.
    (October 27, 2019) Atinga, Awudu; .
    Most of the physical laws associated with quantum mechanics are formulated in a math ematical framework where observables are represented as self-adjoint operators in Hilbert space. These self-adjoint operators are unbounded and therefore very hard to work with. Stone’s theorem makes it a little bit easier by establishing a bijection between a strongly continuous one-parameter group and self-adjoint operators. We began with the needed terminology, and then proved the stones theorem. In addition, we have indicated some applications of Stone’s theorem , particularly those associated with quantum mechanics (dilation and rotation in the Cartesian coordinates)