ABSTRACT This study deals with the reliability and availability characteristics of two different systems, the second system differs from the first system due to the additional feature of preventive maintenance. Reliability and Availability analysis of system having one active unit and one warm standby unit with self-reset function and one maintenance facility. The failure unit is repaired through self-reset or maintenance according to different failure model.( Mean Time to System Failure...
ABSTRACT Premix was formulated from cowpea flour, pepper powder and onion powder by mixing the ingredients together by mixing this was then packed.
ABSTRACT One of the major problems of multiple linear regression analysis is multicollinearity of the independent variables. The existence of multicollineariity on climate variables such as relative humidity, solar radiation, rainfall, sunshine and temperature on the response of agricultural output may lead to inflation of standard error of the regression coefficients or false non-significant p-value. In this study, monthly data spanning from 1980-2012 obtained from the Nigeria Institute...
Subsurfaces samples of predominantly carbonate Ewekoro Formation, obtained from the Ibese core hole, in the eastern Dahomey Basin, were examined based on petrography and geochemistry indices.
ABSTRACT The study was carried out to determine the effect of drying methods on the nutrient contents of Moringa oleifera at the Agric. Chemical Laboratory (Usmanu Danfodiyo University Sokoto) and The Energy Research Field of Sokoto Energy Center, Sokoto. Fresh leaves were collected and cleaned then dried using different drying methods viz. shade drying, solar drying, oven drying and sun drying. The treatments were analyzed for proximate and mineral contents using standard methods. Sta...
ABSTRACT The Black-winged Stilt (Himantopus himantopus) is one of few waterbird species that breeds in wetlands on the coast of Ghana. In recent times, its population has seen an increase on Ghana’s coast while other species are declining. The overall aim of the study was to investigate and document the breeding and foraging ecology of the Black winged Stilt in Ghana. The breeding ecology, diurnal time-activity budget and foraging behaviour of Black-winged Stilts were studied at the Densu D...
ABSTRACT In steady ows, the notion of boundaries separating dynamically distinct regions is not ambiguous. This is because the invariant manifolds of time-independent ows and the critical points of time-periodic ows provide adequate information to determine the behaviour of the solutions of these systems. However, for time dependent systems, it is strenuous to determine the nature of their solutions due to their dependence on time. Nevertheless, it was observed that just like steady ows, most...
ABSTRACT Background: Influenza B viruses are receiving attention lately perhaps due to the degree of haemagglutinin (HA) antigen mismatching between vaccine composition strains and circulating strains. Neuraminidase inhibitor (NI) antiviral has also been implicated in prophylaxis and treatment of severe cases of influenza diseases. However, mutations in the two major surface glycoproteins, HA and nueraminidase (NA) could cause the virus to escape host defence mechanisms leading to failure of ...
ABSTRACT Dose calibrators are used for accurate measurement of radionuclide activity which is required to achieve the desired efficacy for the best clinical outcome. Observations from assayed activity with Capintec and Comecer dose calibrators at the nuclear medicine department of the Korle-Bu Teaching Hospital have indicated that the two systems report significantly different (>10%) readings for the same activity source. Also unusually high background readings (>20% of the mean) have been no...
ABSTRACT In this study, the effects of clay ingestion on iron status and other anaemia factors were investigated using rats. Rats were fed clay at the levels consumed by Ghanaians (weight for weight) who have clay pica habit. A total of 28 white stock weanling rats, aged 3 weeks, were fed experimental diet containing clay for 11 weeks, an equivalent of four years in humans on lifespan basis. The rats were randomly assigned to four different experimental diets containing different levels of cl...
ABSTRACT The process and product characteristics of the traditional palm kernel technology were studied. The study was in two phases. Firstly, a survey on the technology in some selected areas in the Eastern and Greater Accra regions was done, to collate information on processors, processing methods, equipment used, raw materials, marketing of products and some other aspects of the technology. Then the processing methods encountered were replicated in the laboratory and investigated to assess...
ABSTRACT Protected Areas are increasingly becoming significant due to their double potential as tourism and biodiversity conservation areas. This has led to an increasing desire by governments to convert a lot of forests into Protected Areas. However, these conversions are sometimes met with strict opposition from members of fringe communities. This is sometimes attributed to the destruction of livelihood sources of community members and thus affects the smooth management of protected areas. ...
ABSTRACT Background: Entamoeba histolytica causes amoebiasis in humans which is a major cause of morbidity and mortality in children in developing countries like Ghana where there are problems with sanitation. Studies conducted in Ghana have not placed much emphasis on the prevalence of this infection in both symptomatic and asymptomatic children in Accra. Thus, the aim of this study was to determine the prevalence of Entamoeba histolytica among children in Accra, and to identify some risk fa...
ABSTRACT This study evaluated the relationship between possible medical and social factors affecting maternal deaths. A conceptual framework was developed to help identify, classify, model and resolve these factors (by implementing the recommendations). A generalized linear model was fixed using the ‘R’ statistical analysis software. Three data sets (2016 and 2013 data sets on maternal mortality, and a data set on the causes of maternal deaths) were used in the analysis, which showed wide...
ABSTRACT Several hypotheses have been made about the possible mode of transmission of Mycobacterium ulcerans (M. ulcerans) and one of these is the role of insects as possible vectors. Although studies have been conducted extensively on aquatic insects and mosquitoes, limited work has been done on the prevalence of M. ulcerans in other insects. This study investigated the potential role of nocturnal biting insects as vectors of M. ulcerans. Nocturnal insects were sampled from Buruli Ulcer ende...