June 2008
Antimicrobial resistance pattern of plasmid-mediated extended-spectrum b-lactamase producing strains of Escherichia coli
One hundred and twenty three clinical isolates of Escherichia coli isolated from Eastern Medical Hospital Enugu from blood (79) and urine (44) were bacteriologically analyzed for extended spectrum b-lactamase enzyme (ESBL) expression using double disc synergy testing method. Confirmed ESBL producing isolates were screened with nineteen different conventional antibiotics from different classes...
June 2008
Treatment efficiency and economic benefit of Zartech poultry slaughter house waste water treatment plant, Ibadan, Nigeria
The efficiency of the poultry wastewater treatment plant of Zartech Limited, Ibadan, Nigeria, was assessed based on percentage reduction of the various water contaminants while the unit cost of treated water was compared with that supplied through tankers. Wastewater and treated water samples were respectively collected from the points of generation and release after treatment for laboratory analysis for...
June 2008
Corrosion behaviour of mild and high carbon steels in various acidic media
The corrosion behaviour of mild steel and high carbon steel in various concentrations of nitric acid (HNO3), hydrochloric acid (HCl), and perchloric acid (HClO4), has been studied. Specimens were exposed in the acidic media for seven days and corrosion rates evaluated, using the weight loss method. It was observed that nitric acid environment was most corrosive to both steels because of its oxidizing nature,...
June 2008
Structure and performance of formal retail market for bamboo products in Kenya
In Kenya, bamboo is mostly found in Central, Western and Coastal provinces. It is mainly used in residential fencing, horticultural flower farming, handcrafts and minor cottage industry products. This study focused on bamboo market segments in Nairobi, Mombasa and Kisumu with the aim of addressing uncertainties in the market structure and lack of concrete information on market potentials of the products. A...
June 2008
Effect of nitrogen fertilizer levels on fresh leaf yield of spider plant (Cleome gynandra) in Western Kenya
This study was conducted in Moi University, Kenya to investigate the effect of nitrogen fertilizer on fresh leaf yield of spider plant (Cleome gynandra). The objectives were to determine the plant height, number of shoots, number of marketable leaves and fresh leaf weight under different nitrogen fertilizer levels. The crop was planted during the short rains of 2003. The treatments were CAN (26%N)...
June 2008
Awareness and opinions about HIV/AIDS among secondary school teachers in Ogun State, Nigeria
Information is vital to enable people have accurate understanding of the modes of transmission and prevention strategies of HIV/AIDS, and in this regard, teachers are expected to play a major role in the provision of information to promote awareness leading to behavioral change among students. The teachers’ knowledge and perception about the disease will influence how they are able to perform this role....
June 2008
Phase 1 metabolites of polynuclear aromatic hydrocarbons in blood samples of exposed subjects
Automobile mechanics are known to have a high occupational exposure to toxic substances, which include polynuclear aromatic hydrocarbons (PAHs) found in refined petroleum products which are the main source of contamination for these subjects. This paper describes a qualitative investigation of phase I metabolites of PAHs in the blood samples of exposed subjects. In the study, thirty-one healthy adult...
June 2008
Improving speech intelligibility of severely hearing-impaired people by frequency-lowering technique
Frequency lowering is an important audio signal processing method used in digital hearing aids. It helps patients with severe hearing loss in high frequencies by compressing speech into the patients’ residual hearing regions. In this study, a general frequency lowering algorithm was proposed, which could separately process the contents in the disabled high frequencies and those in the low frequencies as...
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