ABSTRACT Cocoa is Ghana's dominant cash crop and the major economic activity for over 800,000 households, with around 6.3 million Ghanaians but insect pest is causing devastating effect on yield. This study sought to obtain information about insect diversity, to generate species list of entomofauna in cocoa farms, to compare the diversity and abundance of the insect and to determine the monthly variation of insect species under differently managed systems in Semi-Deciduous Rain Forest (Suhum...
ABSTRACT This research work performed an intercomparison on some important performance characteristics of optically stimulated luminescence (OSL) and thermoluminescence (TL) dosimetry systems used by dosimetry services in Gabon and Ghana, respectively. The study verified the status of the selected performance indicators and propose ways to improve the performances of individual monitoring services of Ghana and Gabon if found necessary. The performance indicators assessed included the zero - ...
ABSTRACT Cosmopolites sordid us is a major pest of plantain in most plantain growing regions in the world and causing 34.8% yield loss in Ghana. Info chemicals (pheromones and kairomones) can be a potential monitoring tool for plantain weevil borer Cosmopolites sordidus Germar (Coleoptera: Curculionidae). The adult weevil produces an aggregation pheromone which attracts both males and females and the attractive compound Sordid in has been identified and synthesised for commercial purpose. Th...
Abstract The geological disposal of radioactive waste in well-engineered repositories in stable geological formations has been internationally accepted as a suitable option. The disposal system makes use of both man-made and natural barriers to contain and isolation the radionuclides. Precambrian crystalline rocks are regarded as one of the favorable host rocks for a radioactive waste repository. Hydro geochemical characterization of the rocks of the Accra Plains, located in the south easter...
ABSTRACT Evaluation of safety parameters of GHARR-1 after nineteen years of operation was performed and are presented herein. This work serves as an input into periodic evaluations of safety parameters. Due to fuel depletion, the excess reactivity for GHARR1 drops to the allowed lower limit of 2.3 mk from 4 mk in about 2 years. Beryllium is added to the top shim tray of the core to compensate for reactivity loss. The addition of beryllium to the top of the core requires evaluations of safety...
ABSTRACT A comparative study of spectrum deconvolution and quantitative analysis between PyMCA & WinAxil has been undertaken. Standard spectra of X-ray Kα lines (Ti, Fe, Co, Ni, Cu, Zn, As, Sr & Y) & Lα lines (Ce, Sm, Dy, Ta, W, Hg & U) were fitted with both software; also spectra of three soil samples were fitted with both software. Intensities of the elements of the standard spectra were obtained from the results of the fitting using both software and comparisons were made separately for...
ABSTRACT Indoor Residual Spraying (IRS) is one of the malaria vector control tools used in the control of malaria and has helped to reduce malaria transmission in many areas in SubSaharan Africa. This involves spraying the walls of rooms with insecticides so as to kill any mosquito that rest on the insecticide treated walls after feeding. However, recent discussions have been centered on the role unsprayed surfaces such as hanging cloths play in sprayed rooms in malaria transmission. In thi...
CHAPTER ONE 1.0 GENERAL INTRODUCTION 1.1 Introduction Grains constitute the most important staple food for the growing population in most parts of the world and are usually stored to provide food reserve and seeds for planting (Niber, 1994). Maize is a very important crop of the world after wheat and rice (Purseglove, 1992). Maize (Zea mays) originated in America, and is now the principal cereal crop in the tropics and sub-tropics (FAO, 1992). In Ghana, maize is the largest staple crop an...
ABSTRACT In recent years, global warming/climate change has caused many glaciers to melt with the subsequent rising of sea levels. This has put many coastal communities all over the world especially those in developing countries at risk. The vulnerability of these communities to the impacts of climate change depends on many factors including environmental and socio-economic factors. This study sought to assess the vulnerability of coastal communities in Ghana to the impacts of climate chang...
ABSTRACT Data centres use a lot of power, consumed by two main usages: power required to run the actual equipment and power required to cool the equipment. Usage of electricity results in the production of electric and magnetic fields (EMF). Even though electricity is useful in human lives, there have been reported cases of adverse health effects from EMF generated from its use. Because the use of electricity is ubiquitous and plays a vital role in society’s economy, the possibility of har...
ABSTRACT Sand mining is one of the major economic activities in and around the wetlands of Wakiso District and is an important Source of income among smallholder communities in many parts of the country. The gray-white sand type (Placitas) and yellow-brown sand type (Nyanjja) are commonly harvested. However, the gray-white sand dominates the harvest, and Wakiso’s gray-white sand is demanded by the construction industry because it has a fine particle component other types don’t have. How...
TABLE OF CONTENTS DECLARATION .11 APPROVAL DEDICATION ACKNOWLEDGEMENTS TABLE OF CONTENTS VII LIST OF TABLES LIST OF FIGURES LIST OF ACRONy1~5 XII DEFINITONS OF KEY TERMS XIII ABSTRACT XIV CHAPTER ONE 1 INTRODUCTION 1.1 BACKGROUND TO THE STUDY 1 1.2 PRoBLEM STATEMENT 2 1.3 OBJECTIVES OF THE STUDY 3 1.4 RESEARCH QUESTIONS 4 1.5 THE SCOPE OF THE STUDY 4 1.5.1 Subject scope ofthe study 4 1.5.2 Geographical scope ofthe study 5 1.6 THE SIGNIFICANCE OF THE STUDY 7 CHAPTER TWO 8 LITERATURE REVIEW 8 2...
TABLE OF CONTENTS DECLARATION DEDICATION ii APPROVAL iii ACKNOWLEDGEMENT iv LIST OF ACRONYMS xi CHAPTER ONE 1 GENERAL INTRODUCTION 1 1.0 Introductions 1 1.2 Background of the study 2 1.3 PROBLEM STATEMENT 3 1.4 GENERAL OBJECTIVE 3 1.5 SPECIFIC OBJECTIVES 4 1.6 Research questions 4 1.7 SCOPE OF THE STUDY 4 CHAPTER TWO 6 LITERATURE REVIEW 6 2.0 Literature Review 6 2.1 Climate Change in Perspective 6 2.2 Adaptation strategies towards the impacts of climate change 6 2.3 Agriculture and food secur...
ACRONYMS Kenya Wildlife Service World Wildlife Fund Lake Nakuru National Parle Nairobi National Park Kenya Agricultural institute Green House Gases Lake Nakuru Conservation and Development Project Environmental Impact Assessment Environmental Audit NAW ASSCO: Nakuru Water and Sanitation Services Company Limited NSREP: LDC'S: UN: IUCN: ITCZ: NGOS: GDP: USS: EMCA: MCN: NEMP: Km: Nakuru Sewage Rehabilitation and Expansion Project Least Developed Countries United Nations International Union for t...
ABSTRACT A study on the impacts of deforestation on rural women livelihoods was carried out in Kangema division of Murang’a district in central Kenya. The reasons why on~farm sources of wood fuel were not enough, the impacts of deforestation on land productivity and measures that were employed to remedy deforestation were the main variables considered in the study. Data collection in the study included the use of photography, questionnaires, observation, interviewing and literature review....