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This thesis traces the social history of the European community on the Zambian Copperbelt from the onset of copper mining in 1926 to the mid-1970s when a dramatic slump in the price of copper generated severe economic difficulties. There has been almost no academic work on the Copperbelt's European community and, in this respect, this thesis fills an important gap. However, a focus on the European community has a wider significance than filling this gap. Although the Copperbelt has generally been understood in a national or regional context, this thesis argues that developments there are better understood by exploring how the Copperbelt was linked to other mining regions around the world; in Britain, South Africa, the US and Australia. The European community was largely composed of highly mobile, transient individuals, and the constant movement of people made and sustained transnational connections. Mobility and transience are crucial to two of the main themes of this thesis: class consciousness and the importance of race. Class was a strong marker of identity for Europeans and a variant of 'white labourism' dominated life on the Copperbelt. Industrial unrest was a regular occurrence in the life of the European community as strikes and other disputes underpinned extraordinary levels of affluence. The frequency of industrial unrest diminishes the relevance of South Africa as a viable comparison, as does the relative lack of importance of race. This thesis argues that the predominant attitude of Europeans toward the African majority around them was one of indifference and that the importance of 'African advancement' has been overstated. Archival collections in Zambia and Britain constitute the main sources for this thesis. These sources are supplemented with material from archives in South Africa and Netherlands, contemporary publications including newspapers, and interviews with former European residents of the Copperbelt.

Following years of speculation about the potential economic value of mineral deposits in northeastern Minnesota, the first full-scale attempts to exploit that potential began in 1882. That year, the Minnesota Iron Company (MIC) imported dozens of miners to start extracting iron ore from the Soudan Mine on the south shore of Lake Vermilion. They concurrently imported hundreds of men to Agate Bay on the north shore of Lake Superior, approximately 70 miles south of the mine. The MIC selected Agate Bay as the spot for their ore shipping port and they needed men to start the simultaneous construction of an ore dock in the harbor and a railroad north from the harbor to the mine. Immediately after choosing Agate Bay as the spot for their shipping port location, the MIC bought up all the land along the north and west sides of Agate Bay except for a four-acre parcel that owner Thomas Sexton refused to sell. As the MIC-controlled community of Two Harbors developed around it, Sexton's parcel, which he platted as the community of Agate Bay, remained outside of company control. It quickly developed a reputation as a sea of iniquity that eventually became known as "Hell's Four Acres," which included a particularly notorious section called Whiskey Row. Sexton's platted community of Agate Bay existed for just a few years before the iron company acquired it early in 1886. At that point the company removed or demolished all of the remaining structures and covered much of what had been the settlement of Agate Bay with a coal storage platform. This project examines the town site of Agate Bay by looking at the documentary information in the historical record as well as the material culture remains recovered during archaeological excavations. Agate Bay is examined in terms of its position in a world economy (World Systems Theory) with consideration of the potential impacts of industrial capitalism.

After the Mining Code of 1884, Zacatecas residents saw the mining industry encroach on their water sources and menace the public health of the city. The Code allowed for the privatization of land by foreign nationals, denouncements of mines, and water rights to local sources. Municipal officials and residents soon faced a shortage of drinking water and firewood as severe drought settled in the region, along with a devastating monetary crisis. Residents voiced public health concerns with cholera, floods, and abattoirs and pushed for investment in water infrastructure, rabies vaccines, and drainage projects. Miners established unions to represent their claims in injuries and to have silicosis-tuberculosis recognized as an occupational disease. Using public and private archives, newspapers, union documents, and government correspondence, this study demonstrates how municipal officials and mining companies understood public health and occupational health, and to what extent residents tolerated the industry's hold on water. While the historiography of the city emphasizes the economics of colonial silver mining, this study examines the social and environmental links between the industry and the city as mining companies blocked union activity and water management efforts.

Software projects go through a phase of maintenance and, in case of open source projects, through hard development process. Both of these phases are prone to regressions, meaning previously working parts of system do not work anymore. To avoid this behavior, systems are being tested with long test suites, which can be sometimes time consuming. For this reason, prediction models are developed to predict software regressions using historical testing data and code changes, to detect changes that can most likely cause regression and focus testing on such parts of code. But, these predictors rely on static code analysis without deeper semantic understanding of the code. Purpose of this master thesis is to create predictor, that relies not only on static code analysis, but provides decisions based on code semantics as well.

It is well established that mining and metallurgy on a larger scale in Sweden originated in Bergslagen. The historical mining district Garpenberg in Bergslagen presently show the oldest signs of mining in Sweden (2300 BP) based on a study of a lake sediment profile from Gruvsjön. This report focuses on the mining history around Finnhytte-dammsjön (Garpenberg) to assess when the first signs of mining occur, what type of ore was being mined, when the first sign of modern mining was observed and when the lake development stabilized. A complete sediment profile was sampled from Finnhytte-dammsjön which was analyzed with X-Ray Fluorescence spectroscopy. An age-depth model was created for the sediment profile using the introduction of Norway Spruce (Picea Abies) pollen and by matching known peaks in historical atmospheric pollution of Pb as points of reference. Increased Fe concentrations (3.6 ± 0.4 %) compared to deeper sections (2.6 ± 0.2 %) was observed which were well correlated with Ca (R2: 0.73). Indications of increased Fe concentrations relative to Ca was found from 2000 BP. Stabilization of LOI550 and changes in sediment geochemistry indicates that a steady state in the lake development was reached around 4600 BP. Major increases in Zn and Cu that was presumed to be from modern mining was observed from 1800 CE. This report concludes that Fe-rich dolomite or skarn was mined from 500 CE with indications that mining started as early as 2000 BP.

Doctorat en sciences sociales, politiques et économiques / info:eu-repo/semantics/nonPublished

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This thesis explores the application of Markowitz' Modern Portfolio Theory onto 220 years of financial returns for 13 metals and 21 poly-metallic ore types. The interdisciplinary research shows that poly-metallic ores can be described as naturally occurring portfolios that were diversified by natural geological processes. Safest and optimal portfolios for metals and ores can be computed for different time horizons using portfolio optimization algorithms. Results for optimized ore portfolios are thereby subject to geological constraints. The study revealed that commodity cycles last between six and twenty years and exhibit clockwise and counterclockwise motions in the risk-return framework. The cycle length differences for clockwise cycles are statistically significant and thus specific to all investigated metals and ores. By incorporating novel cycle parameters into decision making tools it is suggested that current industry decisions for resource development can be improved. Insights into the performance of metals and ores through the industrial cycles, as well as into the frequency of profitable super cycles can assist Metals & Mining executives in strategic planning and investment.:Introduction 1 Data 3 Metals & ore types studied 5 2.1 Metals.......................................... 5 2.2 Ore types ........................................ 5 2.3 Prices .......................................... 10 2.4 Summary ........................................ 12 II Analysis 13 3 Modern Portfolio Theory 15 3.1 Overview ........................................ 15 3.2 Definitions........................................ 15 3.3 Assumptions ...................................... 17 3.4 Discussion & Conclusion................................ 18 4 Poly-metallic ores as natural portfolios 19 4.1 Objectives........................................ 19 4.2 Results.......................................... 19 4.3 Summary & Discussion................................. 24 4.4 Conclusion ....................................... 25 5 Static portfolio optimization 27 5.1 Objectives........................................ 27 5.2 Assumptions ...................................... 27 5.3 Results.......................................... 27 5.4 Summary & Discussion................................. 31 5.5 Conclusion ....................................... 32 6 Dynamic portfolio optimization 33 6.1 Assumptions ...................................... 33 6.2 Results.......................................... 34 6.3 Summary & Discussion................................. 44 6.4 Conclusion ....................................... 45 7 Commodity cycles & metal assets 47 7.1 Commodity cycles ................................... 47 7.2 Commodity cycle observations ............................ 54 7.3 Summary ........................................ 76 7.4 Discussion........................................ 77 7.5 Conclusion ....................................... 78 III Application 81 8 Commodity cycles & resource development strategies 83 8.1 The timing of mine development and mining start-up................ 83 8.2 Lead times from discovery to operation........................ 88 8.3 Exploration....................................... 89 8.4 Project valuation considerations............................ 91 8.5 Summary & Discussion................................. 92 8.6 Conclusion ....................................... 93 9 Industrial cycles & modern history 95 9.1 The Metal Markets Indicator-MMI ......................... 95 9.2 The Metal Markets Indicator & the economy .................... 97 9.3 The MMI & military conflict ............................. 105 9.4 MMI cyclicality..................................... 115 9.5 Summary & Discussion................................. 122 9.6 Conclusion ....................................... 123 10 Industrial cycles & metal performance 125 10.1 Methodology ...................................... 125 10.2 Metal performance during technological epochs ................ 126 10.3 Discussion........................................ 133 10.4 Conclusion ....................................... 137 11 Industrial cycles & ore type preferences 139 11.1 Coal Age ........................................ 139 11.2 Oil Age ......................................... 142 11.3 Atomic Age....................................... 144 11.4 Discussion........................................ 146 11.5 Conclusion ....................................... 150 12 Industrial cycles & ore provinces 151 12.1 Ore genetic models and industrial cycles....................... 151 12.2 Ore geology and geography .............................. 154 12.3 Ore provenances and mining technology ....................... 156 12.4 Discussion........................................ 157 12.5 Conclusion ....................................... 157 13 The state and future of the M&M Industry 159 13.1 The current state.................................... 159 13.2 The dawn of a new Industrial Age .......................... 163 13.3 The future........................................ 164 13.4 Summary & Discussion................................. 167 13.5 Conclusion ....................................... 168 14 Summary 169 15 Conclusion 171 IV Appendix 173 Bibliography 233 Index 245