Women’s Labour Force Participation: Economic Growth Nexus in Sub-Saharan African Countries

Women’s labour force participation is an aspect of empowerment and a leeway to achieving the SDGs due to the contribution of women’s labour to economic growth. This study investigated the impact of women labour force participation on economic growth in sub-Saharan African (SSA) countries. Important lessons were drawn from Israel as to how Israel has been empowering and currently improving women’s labour force participation and economic growth in general. The study employed a two-step system Generalised Method of Moments (GMM) with panel data from 35 selected SSA countries. The findings showed a positive relationship between gross fixed capital formation, female labour force participation rate, economic growth in SSA countries, and a negative relationship between growth in the region and fertility rate. The study therefore recommended that governments should provide a policy framework to favour and encourage more women’s participation in the SSA region

Heavy metals pollution potentials in the National Iron Ore Mining Company, Itakpe

Heavy metals pollution potential in National Iron Ore Mining Company, Itakpe was investigated. Two mining sites located at the east mining pits such as M3O, which is 370 m above sea level and M2O, which is 350 m above sea level were studied.  Sequential extraction techniques was utilised to examine the distribution effect of the heavy metals pollution potential on the environment. Twelve representative (six-soil, two-sediment, two-plant and two-water) samples were collected, pre-treated and prepared for this study. The atomic absorption spectrometer was used to analyse the concentration of the metals after the sequential and single-stage extractions were determined. Results showed that Chromium, Arsenic, Cadmium and Copper are more bioavailable in the study area than Lead and Iron. This findings indicate that human, animals and plants are exposed to toxic elements (metals and metalloids)

Spheroidal graphite iron production of furnace roof hangers

The wire rod mill of the Ajaokuta Steel Company Limited produces coils, wire rods and re-bars of different sizes. Without the furnace hangers, it will be difficult for the mill to continue to operate. This paper describes the production of furnace roof hangers that are required for re-heating furnace using the spheroidal graphite iron (SGI), highlighting the sand-casting process, charge calculation, and the chemical compositions. The facilities within the foundry shop of the steel company are used to produce furnace roof hangers. The available materials used for the casting of the hangers are the pig iron, scrap ends, foundry returns and magnesium. The process of production was performed through the reheating furnace for the heating of 120 m x 120 m x 120 m billets. One ton induction furnace of low frequency was used as the melting vessel. Also, 6 kg of magnesium was introduced in the ladle before the liquid metal was teemed into it. A Spectro analytical instrument was used to determine the chemical compositions of the materials before and after the casting processes. The analysis of the chemical compositions of produced sample of SGI are presented and discussed

The Land-Potential Knowledge System (LandPKS): mobile apps and collaboration for optimizing climate change investments

Massive investments in climate change mitigation and adaptation are projected during coming decades. Many of these investments will seek to modify how land is managed. The return on both types of investments can be increased through an understanding of land potential: the potential of the land to support primary production and ecosystem services, and its resilience. A Land-Potential Knowledge System (LandPKS) is being developed and implemented to provide individual users with point-based estimates of land potential based on the integration of simple, geo-tagged user inputs with cloud-based information and knowledge. This system will rely on mobile phones for knowledge and information exchange, and use cloud computing to integrate, interpret, and access relevant knowledge and information, including local knowledge about land with similar potential. The system will initially provide management options based on long-term land potential, which depends on climate, topography, and relatively static soil properties, such as soil texture, depth, and mineralogy. Future modules will provide more specific management information based on the status of relatively dynamic soil properties such as organic matter and nutrient content, and of weather. The paper includes a discussion of how this system can be used to help distinguish between meteorological and edaphic drought

Minimizing the Negative Externality from Sachet Water Consumption in Nigeria

Over the years, there has been a consistent increase in the production and use of plastic and sachet packaged products in Nigeria which results in a proportional increase in plastic and Nylon waste pollution in the environment. An earlier survey show that the introduction of sachet water in the country some years ago worsened the situation as it contributes to more than 60% of the sachet pollution. This study therefore tried to find out an efficient and sustainable means of collecting the used sachet water bags to minimize its negative external impact on the environment. It was carried out using primary data collected through direct interview from a sample of 1500 individual in some selected states in the Country. The data was analysed using descriptive statistics and Log-log regression model. The results of the analysis show that PPP method can be effective in managing the menace. Majority of the sampled individuals are of the opinion that a 100% PPP levy will be a sufficient motivation for sachet water users to return their used sachet water bags to the appropriate collection sites in return for their levy or for the trash pickers to collect them for an equivalent payment. Keywords: Sachet water, biodegradable, Pollution, Externality, Plastic Polluter Pay (PPP