Africa's digital future

The main thrust of this book is to examine whether Africa is in a position to benefit from the digital age, given the continent’s many development challenges and slow adoption of digital technologies. While there is substantial literature on the digital economy and the quickening pace of the Fourth Industrial Revolution (4IR), comparatively little research has been conducted on what the digital age means for Africa. This book aims to close this research gap by using various qualitative and quantitative research methodologies to arrive at a cross-section of original findings and perspectives on how Africa can capitalise on the benefits of digital developments, including their potential to create jobs and bring about more inclusive growth. The book’s main contribution is its coverage of a range of topics that will affect Africa’s digital future, including industrialisation, global value chains, transport and logistics, trade facilitation, labour-market dynamics, employment and education. The theme of digital trade forms a backdrop to many of the chapters, along with references to the COVID-19 pandemic. The book acknowledges that although African countries should learn from international best practices, they need to chart their own course according to their own particular circumstances. By adopting a digital mindset, countries should be able to diversify economically and extend their market reach across the continent. Furthermore, while Africa should be looking to the future and determining how digital technologies can become effective tools of sustainable development, the continent has much catching up to do

Africa's digital future

The main thrust of this book is to examine whether Africa is in a position to benefit from the digital age, given the continent’s many development challenges and slow adoption of digital technologies. While there is substantial literature on the digital economy and the quickening pace of the Fourth Industrial Revolution (4IR), comparatively little research has been conducted on what the digital age means for Africa. This book aims to close this research gap by using various qualitative and quantitative research methodologies to arrive at a cross-section of original findings and perspectives on how Africa can capitalise on the benefits of digital developments, including their potential to create jobs and bring about more inclusive growth. The book’s main contribution is its coverage of a range of topics that will affect Africa’s digital future, including industrialisation, global value chains, transport and logistics, trade facilitation, labour-market dynamics, employment and education. The theme of digital trade forms a backdrop to many of the chapters, along with references to the COVID-19 pandemic. The book acknowledges that although African countries should learn from international best practices, they need to chart their own course according to their own particular circumstances. By adopting a digital mindset, countries should be able to diversify economically and extend their market reach across the continent. Furthermore, while Africa should be looking to the future and determining how digital technologies can become effective tools of sustainable development, the continent has much catching up to do

International home economics

The conference was planned to serve the interests of those who wish to work in home economics programs abroad and those who are concerned with the education of international students in the universities and colleges of the United States. Approximately 165 home economists from other states and from foreign countries I including the African and Latin American countries I participated in the conference.https://lib.dr.iastate.edu/card_reports/1026/thumbnail.jp

Opportunities for the Future: ABSEL's Role

What is ABSEL's role in the future? The collective efforts of ABSEL members during the first decade of the organization's existence has resulted in increasing the status and acceptance of business simulation and experiential learning among business educators. However, ABSEL has not been as successful in producing defensible general theory or rigorous research findings. A different contribution will be required in the future. The study of management competencies conducted by the American Management Association and the AACSB report on the managers of the XXI century provide specific, relevant goals for ABSEL's future activities. A modification in ABSEL's current structure is suggested to include major theoretical research projects involving many faculty from different campuses using rigorous experimental design guided by hypothesis testing. Such projects will produce findings that are both internally and externally valid and thus can be used for improving business education

THE USE OF 3D X-RAY COMPUTED TOMOGRAPHY FOR GOLD LOCATION IN EXPLORATION DRILL CORES

Abstract Three-dimensional computed tomography (3DCT) is a non-destructive characterisation technique that was applied to the study of gold-bearing ore from the Witwatersrand Deposit, South Africa. The ability to pinpoint gold occurrence prior to downstream comminution and leaching would potentially reduce processing costs. The aim of the study was therefore to determine to what extent gold, typically fine-grained in occurrence, could be identified in situ. Two gold-bearing drill core pieces were investigated using 1-mm focal spot X-ray tomography and micro-focus X-ray tomography (µXCT). Using the derived data, the cores were physically cut and polished for examination by conventional automated scanning electron microscopy (SEM) to detect gold grains. The SEM results were then compared against the µXCT data. Gold was, to an extent, located by µXCT and validated against SEM data. These first findings suggest that areas rich in gold can be pinpointed by 3DCT prior to conventional assessment, hence potentially reducing processing costs. Keywords: 3D computed tomography, micro-focus X-ray tomography, gold INTRODUCTION The use of 3D computed tomography (3DCT) is well known in the medical industry, where CATScan (computed axial tomography) technology is routinely used. Some other applications for 3DCT may be found in the fields of anatomy, palaeontology, archaeology and automated manufacturing. The technique has only recently gained more attention in the field of minerals processing, however. With the exception of a steady stream of publications from the University of Utah [1], the literature is otherwise sparse in contributions on 3DCT applied to minerals processing. Since 3DCT is a non-destructive method, it shows potential benefits in reduced sample preparation costs, analytical time and data quality compared with conventional 2D microscopy (e.g., optical and SEM-based techniques). The method uses, usually, X-rays that penetrate a sample. In the interaction with the components of the sample the radiation changes its nature -a shift in the energy spectrum due to absorption and scattering interactions with the components in the sample. This change is referred to as attenuation. Less commonly, neutrons and γ-rays may be also used to pass through the sample, and are thus also attenuated by the components through which they pass. The detected attenuated signals (commonly referred to as radiographs) are then processed and related to the components in the sample, thus allowing identification. Cone beam * Correspondence to: [email protected]

International home economics

The conference was planned to serve the interests of those who wish to work in home economics programs abroad and those who are concerned with the education of international students in the universities and colleges of the United States. Approximately 165 home economists from other states and from foreign countries I including the African and Latin American countries I participated in the conference.</p