Cereals are important crops that feed over billions of households worldwide. They have been used extensively for both human consumption and feeding of livestock. In Ghana, cereals such as rice, maize and millet are staple food of great socio-economic importance and they contribute significantly to agriculture Gross Domestic Product (GDP) and the economy of the country. In this study, we developed an ARIMA (p, q)-GARCH (m, s) model to model the volatility of the returns of rice, maize and mill...
Power production and distribution in Ghana is ever more becoming erratic and expensive, both for the power producer and the consumer. It is in this regard that an investigation of hydrothermal power generation scheduling is undertaken for Volta River Authority (VRA) of Ghana. The goal of the study was to determine an optimal power production schedule that meets daily load demands at minimum cost of production and also ascertain the marginal cost of producing electricity per day and therefore ...
The main objective of this study was to apply estimation maximization concept to assess residuals through structural equation modelling. This was achieved through simulation setup. Data was obtained from test scores of some selected course lecturers of Kumasi Technical University to validate the results from the simulation. The results showed that the estimated residuals of the measurement errors using all three estimators correlate negatively with the estimated residuals associated with meas...
The impacts of extremely high temperatures on plants, human beings and animals’ health have been studied in several parts of the world. However, extreme events are uncommon and have only attracted attention recently. In this study, extreme temperature behaviour was modelled through the application of extreme value theory using maximum monthly temperatures over a 32 years period. Data on monthly maximum temperature from the Upper East Region were modelled using generalized extreme value (GEV...
The inverted Kumaraswamy distribution has a drawback in modeling lifetime data which show non-monotone failure rates. Thus, a new class of distributions called power series inverted Kumaraswamy distribution was developed by compounding the inverted Kumaraswamy distribution with zero truncated power series distribution with the goal of making it more flexible. The new class of distributions were developed using the stochastic representation Z min (T1,T2 ,...TN ) which is the time to the fi...
Erectile dysfunction is defined as the continuous inability of a man to attain a satisfactory erection for a successful sexual intercourse. Female sexual dysfunction is also defined as the inability of a woman to enjoy a complete sexual activity. A twoway between groups MANOVA was performed to investigate whether there is a significant difference between male and female, and married and single. Five dependent variables were used: age, creatinine levels, duration of diabetes, glucose levels an...
A new class of distributions, called complementary power series exponentiated Nadarajah-Haghighi distribution was developed in this study by compounding the exponentiated Nadarajah-Haghighi distribution with zero truncated power series distributions. The new class of distributions were developed using the concepts of latent complementary risk scenario, in which the lifetime associated with a particular risk is not observable; rather we observe only the maximum lifetime value among all risks. ...
Pregnancy Induced hypertension (PIH) is a global concern that affect pregnant women usually after 20 weeks of gestation. It accounts for 5 to 10% of all pregnancies in relation to haemorrhage and infections. Clinicians and researchers are finding it difficult to comprehend the primary cause of this anomaly. The Upper East Region of Ghana has witnessed an upsurge in maternal mortality in 2016 and 2017 due to this precarious situation. Hence the need to investigate on some of the perceived risk...
This study was undertaken to examine the nature and quantify the magnitude of Genotype by Environment interaction effects on rice (Oryia Sativa L.) grain yield and to determine the most stable and winning genotype (s) in terms of yield stability and performance in two rice producing hubs. The study was conducted at four locations within two rice producing hubs in Northern Ghana on fifteen (15) rice genotypes including a checking genotype GR18 red. A randomized complete block design with three...
The study focused on the assessment of stakeholders participation as a determinant for effective land use plans implementation in the Tamale Metropolis of Northern Region of Ghana. Primary data was then collected from households and institutions and analyzed. The study revealed that those factors such as leadership qualities, transparency, resources availability and centralization of decisions affect successful stakeholders’ participation in implementation of land use plans. The benefits of...
Unsteady heat and mass transfers are important transport phenomena that are found in many engineering and industrial applications. In such systems, the variations in the fluid flow result in variations in the heat flux for fluid-solid temperature difference. In this study, analytical and theoretical investigations of some non-linear problems arising from unsteady heat and mass transfer through porous media are considered. Analytical models are developed. These are non-linear mathematical mode...
There is high demand by content providers of multimedia services such as Pay-TV News, Pay-per-View (PPV) video and Video-on-Demand (VoD) to expand their customer based through advertisement. However, the threats of unauthorized access, reproduction and re-distribution of the high quality product by illegal users’ remains high thereby affecting the returns of the content providers/producers. In this regard, perceptual video cryptosystems have become a highly active research area; developing ...
Breast cancer is the most frequently diagnosed cancer and the leading cause of cancer death in female's worldwide. The objective of the study was to identify and describe breast cancer survival pattern in Ghana and factors that explain the disparity in survival rates for breast cancer by the use of Cox proportional hazard. The extent to which selected demographic, hormonal and reproductive factors influence the cause of breast cancer were also examined using the logistic regression technique ...
The main objective of the study was to investigate the causes of food insecurity attributable to smallholder livestock production systems in the Nadowli District of the Upper West region. To achieve this goal, the study made use of both qualitative (Focus Group Discussions and In-Depth Interviews) and quantitative survey research design (Questionnaire) based on the objectives of the study, The study adopted a multi perspective approach namely; sod° cultural, economic, technological and polic...
The Energy Drink (ED) market has grown into a multi-billion-dollar industry globally. In Ghana, the trend is similar with consumption among the youth on the rise. This is despite their association with short and long-term negative health outcomes. This study, therefore, sought to assess the prevalence and consumption pattern, perception, and factors associated with ED consumption among the youth of the Tamale Metropolis. It was a population-based cross-sectional study of 541 conveniently samp...