Natural & Applied Sciences

Research Papers/Topics Natural & Applied Sciences

Effects Of Low Dose Gamma Radiation On Quality And Storability Of Groundnut Seed (Arachis Hypogaea L.)

ABSTRACT The effect of selected low gamma radiation doses on the quality and storability of groundnut seeds cv. Chinese was studied for five months under ambient storage conditions. Six radiation doses (0,1,2,3,4 and 5 Gy), two groundnut seed forms (shelled and unshelled) and eight tri-weekly intervals were combined using Completely Randomised Design with three replications. Physiological parameters (germination percentage, speed and peak value of germination; seedling, root and shoot lengths...

Biology Of Cowpea Flower Thrips And Host Plant Resistance

ABSTRACT Biology of cowpea flower thrips Megalurothrips sjostedti, was studied under field conditions. Population studies showed that the trend of thrips populations was closely tied with the flowering cycle of the cowpea crop. Peak thrips populations coincided with peak flowering of the crop. The seasonal abundance of thrips was mainly governed by weather factors. Thrips were found to oviposit mainly in the calyx of the cowpea flower. Evaluation of different sampling methods for thrips on co...

SSA Research 132 PAGES (56723 WORDS) Zoology Thesis
In Vitro Assay For The Anti-Diabetic Effect Of Ocimum Canum And Other Medicinal Plants

ABSTRACT The major objective of this work was to establish an in vitro assay system for evaluating Ocimum canum, an antidiabetic plants, using insulin release from isolated pancreatic p-islet cells of rats. An in vivo assay was carried out to confirm the previous work by Hogarh (1996) indicating the anti-diabetic activity of 0. canum. The effect of the aqueous extract of fresh leaves of 0. canum on lipid profile of genetically diabetic mice and their lean littermates was also evaluated. In vi...

Gender Dynamics Of E-waste Management Practices In Accra And Kumasi (Ghana)

ABSTRACT E-waste management, a subcomponent of e-scrap management, has become a major global environmental issue. Studies conducted in Ghana have shown that e-waste management is a major livelihood for mostly underprivileged migrant male urban dwellers. However, none of these studies have examined the gender dynamics of ewaste management. This study therefore employs gender and development (GAD) analytical framework, through a mixed research approach to investigate the gender dynamics of e-...

Hepatitis C Virus (Hcv) Infection Among Sickle Cell Disease Patients At The Korle-Bu Teaching Hospital

ABSTRACT Background: Hepatitis C virus (HCV) infection is a leading cause of chronic liver disease among sickle cell disease (SCD) patients. Disease progression has been implicated with circulating genotypes of HCV. Determination of RNA and genotypes of HCV in sickle cell disease patients may give an indication of their contribution to the observed clinical manifestations and disease progression which will inform appropriate clinical management. Aim: This study sought to identify and characte...

Development And Preservation Of A Cocktail Beverage Produced From Carrot (Daucus carrota), Pineapple (Ananas comosus) And Mango (Mangifera indica L,)

ABSTRACT Carrot is known to have the potential of providing vital nutrition as well as health and well-being to consumers. In this study, carrot juice was envisaged as a good vehicle for spreading its nutraceutical benefits. The study was then designed in two parts: (a) Survey to establish the beverage consumption pattern in the Anyaa-Sowutuom District in the Greater Accra Region of Ghana and (b) Carrot juice formulation and optimisation. The survey was conducted by administering a question...

Smallholder Farmers’ Vulnerability To Floods In The Tolon District, Ghana

ABSTRACT Flooding is by far the most destructive type of weather conditions that strikes humans and their livelihoods around the world. Smallholder farmers in rural communities are predominantly dependent on rain-fed agriculture which exposes them to the vagaries of floods. Flood extremes have become more unpredictable and smallholder farmers are more vulnerable to them as a result of their limited adaptive capacity. Local level assessment of flood vulnerability is thus necessary in order to ...

SSA Research 154 PAGES (31384 WORDS) Geography Thesis
Dependence Of Teletherapy Timer Error On Treatment Parameters In External Beam Radiotheraphy (EBRT) Using The Theratron Equinox 100 Cobalt 60 Machine

ABSTRACT The purpose of this research work is to evaluate the variation (or dependence) of the timer error as a function of the teletherapy treatment parameters such as treatment field size (FS) and treatment depth (d) for a SSD setup and compare the method used for others. Teletherapy timer error measurements were performed in a full scatter, large water phantom using a 0.6cc ionization chamber and an average photon energy of 1.25MeV from a cobalt-60 unit at an SSD of 100cm at various field...

Optimization of The Parameters For Bio-Processing of Cassava Peel to Increase Fermentable Sugars And Lysine Production

ABSTRACT Bio-processing of cassava peel for Lysine production was done by characterising the cassava peel for carbohydrate types. The process of enzymatic hydrolysis of the cassava peel was optimised to produce fermentable sugars using response surface methodology. The hydrolysed cassava peel was used as a source of carbon to optimise the conditions for lysine production using mutant Corynebacterium glutamicum (AHP3) strain. Cassava peel is a biomass generated as a result of processing cassa...

Statistical Assessment Of The Relationship Between Stock Prices And Economic Variables;A Case Study For The Gse

ABSTRACT There are several literature on the study of the relationship between macroeconomic variables and stock prices. These studies have focused largely on the developed capital market and carried out in the early 1970s. From literature reviewed,there is no study that have modelled the relationship between stock price and, both macroeconomic and micoeconomic variables in the order to explain their combined effect on stock market returns using Autoregressive Distributed Lag (ARDL) model at ...

G-Protein Mediated Signal Transduction In Saccharomyces Cerevisiae.

ABSTRACT V Yeast mating type locus gene alpha2 (MATa2), Yeast G protein complementing gene ( YGC1) and minichromosome maintenance gene (M C M 1) have been identified by isolation of plasmids that are able to complement or suppress a gpa1::HIS3 mutation. MATa2 and YGC1 rescue both MATa and M A Ta-gpa1::HIS3 haploid cell types whereas MCM1 complements only MATa gpal::HIS3 cell type. MATa2 is known to be a general repressor and a determinant of both haploid and diploid cell types. MCM1 is known ...

Haptoglobin Genotypic Polymorphisms And Longevity Among The Ghanaian Population In The Greater Accra Region

ABSTRACT Background: Haptoglobin (Hp), an acute phase glycoprotein with antioxidant, antiinflammatory and immune-modulatory functions may be an excellent candidate gene to investigate human longevity. Human Hp is polymorphic and these polymorphisms have been associated with different functional capacities of the proteins expressed as a result of their distinct biochemical and biophysical properties. Aim: To determine the possible role of haptoglobin genotypes as genetic markers for longevity....

Intra Prison Transmission And Genetic Diversity Of Hepatitis B Virus In A Ghanaian Prison

ABSTRACT Background: Selecting an ideal genetic regions for the phylogenetic analysis of hepatitis B virus (HBV) transmission continue to be a matter of debate, with different researches preferring different genomic region. Whole genome sequence analysis is always the gold standard for this this kind of research. But in middle income countries such as Ghana, where HBV infections are endemic, it is almost impossible to study a large number of samples because of financial constraints. Thus, ana...

A Methodology For Stochastic Monitoring Of Macro-Economic Variables In Ghana

ABSTRACT The study is based on the stochastic monitoring of Macroeconomic variables in Ghana. The macroeconomic variables that were considered in the study included Inflation rate and the Gross Domestic Product (GDP). The data covered the period from 2009 to 2017 for the monthly inflation rate and 1961 to 2017 for the GDP. All analyses were done using the R software. The Augmented Dickey-Fuller test was used to test the data and the results showed that all the data were stationary after the ...

Pub Network 108 PAGES (24112 WORDS) Statistics Thesis
Transmission Of Human And Animal Onchocerciasis And Molecular Diagnosis Of Onchocerca Species In Some Ghanaian Communities

ABSTRACT Control of onchocerciasis over the past 3 decades has brought great relief to millions of people living in endemic communities, by substantially reducing blindness and other dermatological lesions. However, there are still areas where infections in human populations are high and vector transmission is ongoing, requiring a further understanding into the transmission dynamics of the disease in such communities. Furthermore the status of animal onchocerciasis is still unknown in Ghana ...

Pub Network 91 PAGES (19202 WORDS) Zoology Thesis

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