ABSTRACT Iron is the single element used in industries in larger quantities than all the other metallic elements combined. This is because of the very wide applications of the metal in manufacture of machinery, vehicles, utensils, trains and train rails, ships and bars used in re-enforced concrete. Whereas the element occurs in more than 80 minerals, only a small number is important as a source of iron. However, even these must be concentrated to make them suitable for putting in a blast fur...
ABSTRACT Throughout their lives, human beings are continually exposed to radiation from terrestrial radionuclides particularly 40K, 238U, 232Th and their decay products. The radiation, usually in the form of gamma rays and alpha particles, is largely attributed to building materials for instance rock and concrete mainly used in developed countries and cities around the world, or soil which is principally used in most parts of rural Africa. Radiation exposure from terrestrial sources may be m...
ABSTRACT Performance in national examination in Mombasa County has been on the decline. Stakeholders in the sector are brainstorming on ways to remedy this situation. The present study sought to explore school culture and its influence on the students‟ performance in KCSE. It was conducted in Public Secondary schools in Mombasa County. In this regard, the following objectives guided the study: to assess the forms of school culture practiced in selected public secondary schools across the c...
ABSTRACT Malaria is one of the major parasitic diseases in the tropical and subtropical regions of the world. The World Health Organization (WHO) estimates that each year, malaria causes 300 to 500 million infections and 1.5 to 3 million deaths. The disease accounts for 20% of all global childhood deaths. There are major problems of drug resistance, particularly to chloroquine which has been the mainstay of malaria treatment, especially in Africa because of its low cost and minimal side effec...
ABSTRACT The quality of cement as a binding material in building and construction depends on many factors. Among the most important is its resistivity to the aggressive environment and its strength. The most aggressive ions to reinforced concrete are Cland SO4 2- . This study investigated the diffusivity of these ions into mortar made from a mixture of ground calcined clay bricks from Kibwezi region (GB) vis-a-vis ordinary Portland cement (OPC) and Commercial Portland Pozzolana cement (PPC)....
ABSTRACT Cement is subject to degradation by aggressive media found in the environment. Durability tests are therefore necessary for any cementitious material in a given aggressive environment. This study investigated chloride and sulphate diffusivity in mortar made from selected Kenyan cements. The test cements included three brands of Ordinary Portland Cements (OPC) and three brands of Portland Pozzolana Cements (PPC). The test cements were used to make mortar prisms at different water / ce...
ABSTRACT The study was aimed at developing mathematical models on the hydraulic performance of Sandbags as Checkdam for erosion control. Pilot studies were carried out at two sites. Site ‘A’ was a natural gully at a location in Ezinihitte-Mbaise, Imo State while site ‘B’ was an artificial channel excavated on the slope of Otamiri River at Federal University of Technology, Owerri. Artificial runoff was simulated into site ‘B’ by pumping water from Otamiri River. Sandbags of variou...
ABSTRACT With the growth of entertainment education (E-E) serial dramas worldwide and the extensive evaluation research on their impacts on the audience, techniques employed during their production have received a short shrift in E-E research. One of the most noticeable techniques in a serial drama production is the mise-en-scene technique and this study examines the role of setting an element of mise-en-scene in a serial drama edutainment. In this study, it is argued that in the hands of sk...
ABSTRACT Urban heat island refers to the thermal temperature differences between rural and urban areas. The factor that has been attributed to this phenomenon is urbanization, where natural land cover is replaced by concrete and other man-made impervious surfaces. Causes and effects of heat islands and urban climates are varied. The urbanization process dislocates the natural solar and hydrologic balances by transforming the radiative, thermal, moisture and aerodynamic characteristics of a re...
ABSTRACT The attainment of a fully integrated East African region through the East African Community is yet to be realised. This is because most of the agreements pertaining integration are yet to be fully implemented while some are way past their implementation deadline. The East Africa Common Market Protocol, for instance, came into force in July 2010 after being ratified by member states. However, its practical implementation is considered a process that must take place over time since to-...
ABSTRACT Cytonn Investments Limited is currently experiencing high employee turnover rates, especially with the junior members of staff; a situation that has prompted this study to be conducted with a focus on the organization. The purpose of this study was to investigate the influence of working environment on job satisfaction of employees in Cytonn investment. The study was guided by four specific objectives namely; to find out the influence of physical work environment, relationship, manag...
ABSTRACT This research is focused at designing of water storage facilities of size 875,000 litres (750,000 litres for underground water storage, and 125,000 Litres for elevated steel tank) of treated wastewater and its transmission system for the storage and re-use of treated wastewater. The project is aimed to structurally design water storage facilities and its transmission system from the reservoir to the overhead tank for the re-use of treated wastewater in Covenant University. The...
ABSTRACT The design of proposed Modern Bus Terminal at Obalende employs the use of thin-shell concrete structures in order to provide maximum space use. The study adopts a combination of primary and secondary data which were obtained through review of relevant literature and case studies and also interview of stakeholders at the intended site. The obtained data were properly analyzed and infused into the proposed design for a properly functional bus terminal with proper circulation....
ABSTRACT This research is focused at designing of water storage facilities of size 875,000 litres (750,000 litres for underground water storage, and 125,000 Litres for elevated steel tank) of treated wastewater and its transmission system for the storage and re-use of treated wastewater. The project is aimed to structurally design water storage facilities and its transmission system from the reservoir to the overhead tank for the re-use of treated wastewater in Covenant University. The desig...
ABSTRACT This research evaluated the implementation of SERVICOM reforms in the Nigeria federal public service in South-east Nigeria, with particular reference to Federal Ministry of Works, Federal Radio Corporation of Nigeria (FRCN) and Joint Admission and Matriculation Board (JAMB). The study was necessitated by the continued decadence and stigmatization of the public service with over centralization, incessant conflicts between cadres, scant emphasis on results and concrete performanc...