AMCIS 2016: Surfing the IT Innovation Wave - 22nd Americas Conference on Information Systems | Year: 2016
Existing literature has suggested that business environment exerts an influence on the successful adoption and use of IT. The factors that impact success of IT implementation in developed countries could be significantly different from those of the developing economies. The present study extends a study by Karimi et al. (2007) that explored the effect of extent of ERP implementation on business process outcomes in Ghana, a Sub-Saharan Africa country. The study considered the effect of Data Culture, Ethical factors, and Organizational Integration, and how they influence ERP implementation. The results of the study confirmed a panoptic effect of ERP systems among SSA firms. The results of the study also highlighted the robustness of the panoptic theory in explaining ERP implementation. Future research may extend the current work by collecting data from other SSA countries to enhance the generalizability of the findings and the nomological model presented in this paper.
Opoku A.,KNUST |
Chaves B.,Ghent University |
De Neve S.,Ghent University
Biological Agriculture and Horticulture | Year: 2014
The effect of neem seed oil and neem leaf extract as organic nitrification inhibitors (NIs) on the accumulation of and, and nitrification inhibition after incorporation of crop residue was investigated in an incubation experiment. Dicyandiamide (DCD) applications of 15 and 30 kg active ingredient ha -1 were used as low and high doses of a synthetic NI. Soil samples were amended with 21 g kg-1 cauliflower leaves and treated with NIs at a rate of 30 kg ha-1 of neem seed oil, 60 kg ha-1 of neem leaf extract, 15 kg ha-1 of DCD, and 30 kg ha-1 DCD. Samples were incubated at temperatures corresponding to field temperatures during fall and winter in Flanders, Belgium. Neem seed oil increased accumulation by 8.9 mg kg-1 and decreased by 13.5 mg kg-1 within a month. High and low doses of DCD increased accumulation by 48.2 and 1.6 mg kg-1, respectively. Nitrification was inhibited by 29% for 30 days by the low dose of DCD, 58% in 30 days by neem seed oil, and 42% in 45 days by the high dose of DCD. Nitrification was not inhibited by the neem leaf extract. © 2014 © 2014 Taylor & Francis.
Serwaa Mensah G.,Kwame Nkrumah University Of Science And Technology |
Kemausuor F.,KNUST |
Brew-Hammond A.,Kwame Nkrumah University Of Science And Technology
Renewable and Sustainable Energy Reviews | Year: 2014
Providing access to modern energy services for development is a daunting task which requires rigorous planning based on robust information. Energy access indicators enable measurement and monitoring of the progress of energy access expansion efforts, thus informing corrective efforts and efforts worth replicating. This paper reviews what has been proposed to constitute energy access and energy access indicators. The paper further reviews briefly the different types of energy access indicators and analyses access to modern energy in Ghana as measured using the energy access indicators employed in Ghana. The paper concludes that Ghana has achieved commendable access to modern energy services compared to her sub-Saharan peers but recommends further efforts to achieve the set targets of universal access to electricity by 2020 and 50% access to LPG by 2020. The paper finally recommends further work on the different types of indicators which are relevant for tracking energy access progress but are not currently employed in the country. © 2013 Elsevier Ltd. All rights reserved.
Sekyere C.K.K.,Kumasi Polytechnic |
Forson F.K.,KNUST |
Renewable Energy | Year: 2016
A mixed mode natural convection solar crop dryer with a backup heater was designed and constructed from locally available materials and used to dry freshly prepared pineapples under four drying Scenarios for drying to correspond to specified drying periods for four typical seasons in Ghana. The experiments were devised for the material moisture content to be monitored continuously till the desired moisture content of between +106% and 184% (d.b) was achieved. In solar heating mode of operation, results show that the thermal mass was capable of storing part of the absorbed solar energy but the quantities involved are insufficient to sustain night drying. It was possible to dry a batch of pineapples in each mode of operation. The dryer reduced the moisture content of pineapple slices from about; 924% to 106% in 19 h; 1049% to 184% in 10 h; 912% to 155% in 7 h; and 1049% to 144% (d.b) in 23 h, for drying in Scenarios 1, 2, 3 and 4, respectively. The average moisture pickup efficiency values obtained were 27%, 24%, 11%, and 32% for drying in Scenarios 1, 2, 3, and 4, respectively. © 2016 Elsevier Ltd.
Adjei P.O.-W.,KNUST |
Agyei F.K.,Forestry Research Institute of Ghana
Environment, Development and Sustainability | Year: 2015
Well-being, a condition of positive physical, social and mental state of life, has become a prime focus of research in recent years as people seek to achieve and sustain it. Interacting with the natural environment has been established as a way of acquiring well-being benefits. However, the extent to which well-being depends on various aspects of the environment particularly biodiversity has received less attention. This paper examines the relationship between the level of biodiversity in an environment and human well-being. The depression and happiness scale was employed to sample 236 visitors of eight green spaces in Anglesey and Gwynedd, North Wales, while also noting socio-demographic and environmental factors such as perceived naturalness, density of visitors and noise level to establish the relationship. In each green space, the levels of native and introduced plant diversity were estimated. The paper established that level of ecological diversity determines level of people’s wellness and happiness derived from a green environment. Visitors to green spaces with higher plant diversity receive higher levels of happiness. Significantly too, diversity of introduced species was a better predictor than native plant diversity. Perceived naturalness, density of visitors and visitors’ age was also predictors of happiness. It is concluded that increasing the level of biodiversity in an environment could improve people’s well-being. However, the finding about introduced versus native species deserves more attention. © 2014, Springer Science+Business Media Dordrecht.
Ackah I.,University of Portsmouth |
International Journal of Energy Economics and Policy | Year: 2014
Concerns about the role of energy consumption in global warming have led to policy designs that seek to reduce fossil fuel consumption or find a less polluting alternative especiallyfor the transport sector. This study seeks to estimate the elasticities of price, income, education and technology on transport gasoline demand sector inGhana. The Structural Time Series Model reports a short-run price and income elasticities of -0.0088 and 0.713. Total factor productivity is -0.408 whilstthe elasticity for education is 2.33. In the long run, the reported price and income elasticities are -0.065 and 5.129 respectively. The long run elasticityfor productivity is -2.935. The study recommends that in order to enhanceefficiency in gasoline consumption in the transport sector, there should beinvestment in productivity.
Sekyere C.K.K.,KNUST |
Forson F.K.,KNUST |
Renewable Energy | Year: 2012
Studies have shown that 50.1% of Ghana's 22,900,927 population use kerosene as fuel source for lighting. Statistics further established that 75.6% of Ghana's rural population and 19.9% of the urban population use kerosene as fuel for lighting. This situation has brought about diverse problems of poor indoor air quality. For instance, a survey conducted among 113 non-electrified households in 16 rural communities, located in six regions in Ghana that use kerosene lanterns established that 69% of the households observed soot particulates in a household member's nostril in the morning.In light of the known health effects of kerosene usage for lighting in poorly ventilated structures and the recent global increases in the prices of petroleum products, this study is designed to assess the suitability of solar-powered LED and CFL lighting systems as replacement for kerosene lanterns. The technical analysis was done by measuring the luminous flux of each lighting system on a flat surface measuring 1. m by 1.2. m using a portable lux meter. The economic analysis was based on a two-year simple payback period.Results from the study showed that the cost of illumination ranges from $0.061 per thousand lux-hours (klxh) for Goshen solar lantern to $0.261 per klxh for Gentlite solar lantern with kerosene lantern costing $0.227 per klxh. The analysis established that switching to the solar-LED and CFL systems (lanterns A, B and D) would have a payback time of less than two years when replacing the wick-type kerosene lantern with between $11.60 and $61.60 to save annually. When evaluated in terms of total cost of ownership (fixed and variable), the solar-powered LED and CFL systems emerged as the most cost-effective solution.Emissions analysis conducted revealed that the solar-powered systems save between 80.15 and 256.49kg CO 2/year. The annual CO 2 emissions per kerosene lantern were estimated to be 60.99kg.Therefore, the most significant deduction from the study is that the solar-powered LED and CFL lighting systems are a viable and cost effective off-grid lighting alternative for fuel-based lighting systems in rural Ghana. © 2012 Elsevier Ltd.
Adubofour K.,KNUST |
Obiri-Danso K.,KNUST |
Environment and Urbanization | Year: 2013
The Millennium Development Goals call for a 50 per cent reduction in the proportion of people without sustainable access to safe drinking water and sanitation. Provision of these services by city authorities is often absent in slum(1) settlements in developing countries as these settlements are classified as illegal by city authorities. A field survey was conducted in two urban slums in the Asawase constituency of Kumasi, Ghana to ascertain the extent of "improved" water and sanitation coverage as defined by the WHO/UNICEF Joint Monitoring Programme. The study revealed adequate levels of improved water coverage, but both communities had extremely low coverage for improved sanitation (toilet) facilities within the households and most people depended on a very inadequate number of poorly maintained public toilets. Waste management practices in the two communities were also very poor. Findings from this study can be used by city authorities in planning effective sanitation intervention strategies for the communities. © 2012 International Institute for Environment and Development (IIED).
Andreasen J.,Royal Danish Academy of Fine Arts |
Andersen J.E.,Royal Danish Academy of Fine Arts |
Environment and Urbanization | Year: 2011
This narrative of governance and land issues in Mpasatia, a small traditional town in the Ashanti region of, Ghana focuses on the first "modern" plot sub-division project in the town, initiated in 1993. Land has always been a subject of interest in Ghana due to the belief that it belongs to three sets of people, namely the ancestors, those living now and future generations. This conceptualization provides some explanation of how land is delivered for development and how it complicates local governance of land, including land revenue, and also the difficulties associated with traditional settlements copying new urban development in cities like Kumasi. The paper discusses how the model of modernization of new sub-divisions was adopted in the Nkwanta Scheme within Mpasatia, reflecting the radical change seen over the last two decades in Kumasi and Accra, where recent developments have abandoned smaller plots for compound houses, providing big plots for detached villas. The paper provides possible reasons for the limited success of the scheme. © 2011 International Institute for Environment and Development (IIED).
Kemausuor F.,KNUST |
Kamp A.,Technical University of Denmark |
Thomsen S.T.,Technical University of Denmark |
Bensah E.C.,Kumasi Polytechnic |
Stergard H.,Technical University of Denmark
Resources, Conservation and Recycling | Year: 2014
Biomass is an important renewable energy source that holds large potential as feedstock for the production of different energy carriers in a context of sustainable development, peak oil and climate change. In developing countries, biomass already supplies the bulk of energy services and future use is expected to increase with more efficient applications, such as the production of biogas and liquid biofuels for cooking, transportation and the generation of power. The aim of this study is to establish the amount of Ghana's energy demand that can be satisfied by using the country's crop residues, animal manure, logging residues and municipal waste. The study finds that the technical potential of bioenergy from these sources is 96 PJ in 2700 Mm3 of biogas or 52 PJ in 2300 ML of cellulosic ethanol. The biogas potential is sufficient to replace more than a quarter of Ghana's present woodfuel use. If instead converted to cellulosic ethanol, the estimated potential is seven times the estimated 336 ML of biofuels needed to achieve the projected 10% biofuels blends at the national level in 2020. Utilizing the calculated potentials involves a large challenge in terms of infrastructure requirements, quantified to hundreds of thousands of small-scale plants. © 2014 Elsevier B.V.