A socio-economic history of the public passenger tramways of Kimberley: 1880-2000

This study examines, in some depth, the rationale behind the tramway development that occurred in Kimberley. It also looks at the socio-economic impact that the tramways had on Kimberley’s development and growth, covering the period from 1880 to 2000. After the introduction in Chapter 1, Chapter 2 looks at the overall evolution of tramway development in America, Britain and Europe, with a brief outline of its rise, decline and slow return to favour, which has seen the re-emergence of the tram in many cities. Chapter 3 looks at the area now occupied by Kimberley and sets the scene for the events that were about to unfold. This chapter also sketches an outline of the early development, which occurred on the Diamond Fields following the earliest diamond discoveries, as Colesberg Kopje was quickly transformed from a small hill to an ever-deepening hole in the ground. Chapter 4 of this study examines the machinations of the earliest, but stillborn tramway proposals, which came to naught amidst a host of unrelated but pressing issues, including the vital supply of water to the dry diggings. Other significant issues, which are included, are the great Smallpox Epidemic and the general feeling of uncertainty and unease on the Diamond Fields, which was to come to characterise and haunt the diamond mining activities for many years to come. v Chapter 5 looks at the Gibson Brothers’ rise to prominence with their Victoria Tramway Company, which despite setbacks and delays finally became operational in 1887. The chapter continues by explaining how the tramway survived, largely along British lines, using horse, mule, steam and electric traction, despite the difficulties posed by the Anglo Boer war, especially the Siege of Kimberley. However, as described in this study, the tramways served more than merely the provision of a means of public transport, although this was certainly the primary function. The tramways assisted in transforming a shanty town of tents and corrugated iron huts into a “proper” town, complete with all the trappings of civilisation, such as electric street lighting and theatres, and later on into a fully-fledged city. As the settlements expanded, the tramways were extended to serve the new fledgling suburbs, although it must be stated, sometimes with a certain degree of reluctance. This meant that Kimberley’s growth was not as a result of the expansion of the extending network of the tramways, but rather the other way around. This was partly because that prior to 1914, the tramways had been expected to generate a profit rather than a loss! Basic economic principles applied, and although the social responsibility of providing the inhabitants with an effective means of public transport was forthcoming, it came at a cost to the passengers, and the fares were never cheap. Chapter 6 looks at the two schemes considered by the Kimberley Borough Council, one of which became operational, but as an industrial undertaking only. The second, and more important scheme, proposed by the ratepayers of Ward 5, failed to find municipal support and thus the residents were compelled to wait until it was finally resurrected successfully in 1915. vi Chapter 7 examines the promotion of De Beers own tramway scheme into a highly professional Americanised electric interurban, linking Kimberley with the pleasure resort at Alexandersfontein. Despite difficulties, the system also developed into a successful tramway, which in 1914 was incorporated into the Kimberley Tramways, which also took over the operations of the Victoria Tramways Company as from 1 July 1914. Chapter 8 of this study looks at the challenges confronting De Beers Consolidated Mines Limited with assuming full responsibility for operating the Kimberley Tramways. The year 1914 was to prove a watershed in the fortune of the tramways, in that from the De Beers’ perspective, the tramways were now seen as part of a larger corporate initiative involving the provision of greater social responsibility for Kimberley. Thus running the tram service at a small loss was quite acceptable. Indeed it was perceived as part of the necessary price to be paid for “keeping faith with the inhabitants of Kimberley”. The main difficulty was the integration of two virtually separate systems and routes, plus three new extensions, into a properly integrated public system. This task would have been eased considerably had Kimberley been in the midst of an economic boom. Unfortunately the opposite was true, and Kimberley experienced more economic turbulence during the inter-war years than at any other period in its history. Somehow the trams kept operating for the full twenty-five year period of the concession, but thereafter even De Beers could not afford to continue. Sadly, the price of keeping faith, in monetary terms, did eventually rise to unacceptable levels. With annual losses exceeding £12,000 during the late 1930s, and the expectation that this figure would increase, closure was inevitable. Nevertheless, the public passenger service provided by De Beers offered Kimberley’s inhabitants the lowest tram fares in the country. Nevertheless, certain truncated sections of the system lingered on right through to the mid-1970s. vii Having operated the public passenger service for the residents of Kimberley for the full twenty-five year concessionary period on behalf of the Kimberley City Council, the tramways did eventually close in 1939. Had De Beers not closed the tramways when they did, the outbreak of the Second World War would most certainly have. Chapter 9 examines how the revival of the tramways was first mooted, until success was finally achieved. This study has also chronicled that through some strange quirk of fortune, some of the tramcars managed to survive, albeit on the De Beers industrial system, but survive they did, until the time came for their revival. Although today only one solitary tramcar survives in service, the spirit of the past is retained. Nevertheless, much more could have been achieved, but the initiatives offered were not acted upon. Thus tramcars that could have been restored were thrown aside as surplus to requirements, and bereft of their fittings, unceremoniously dumped in a scrap yard. The chapter continues with how the tramway has continued in operation into the twenty-first century, and so that today, it remains unique in Southern Africa. Having chronicled the socio-economic history of the tramways of Kimberley, Chapter 10 of this study attempts to put events in Kimberley into the larger global and South African perspective. It looks at what lessons can be learnt from Kimberley’s experiences in tramway operation, and considers whether Kimberley’s experiences with trams, combined with the light rail transit concept, offer any possible benefits or solutions towards solving some of South Africa’s current public transport needs. It concludes with recommendations for the future, including the suggestion for taking the original tramway concept and updating it to today’s modern-day counterpart, light rail transit. viii An interesting parallel with Bloemfontein is also explored, where trolley buses rather than trams, were introduced. The concept of other large South African centres of population such as Cape Town, Johannesburg and Durban following Kimberley’s example in introducing tourist-orientated tramway systems, is also examined. In the section entitled The Road Ahead, the three present-day imperatives of public transport are examined. Having explained the nature of these three imperatives, namely; Strategic, Tactical and Operational, Kimberley is compared against each of these imperatives in turn, and then against modern day parameters. The two perspectives are then compared and comparisons drawn, showing both similarities and differences. The scope of the similarities are very apparent and the main difference is noted as being that South Africa’s current transport legislation appears better equipped to guide current and future transport policy, than previous legislation. Thus the study concludes by expressing the hope that Kimberley’s experiences with the provision of public passenger transport, covering the last one hundred and twenty years, can make a valuable contribution to the future wellbeing of public transport throughout Southern Africa.Dr. C. W. V. Mostert Prof. J. Walter

Basic Skills in Adult Education and the Digital Divide

Traditionally, basic adult education has had a particular concern with the skills of literacy and numeracy, seeing these as essential for entry to the world of work. Adult education teachers may therefore be reluctant to adopt ICT, unsure of the part it should play, and worried about the time it takes away from the development of these basic skills. As we enter the 21st century, however, ICT has already become a necessary and important component of adult education. Formal and non-formal education are being delivered at a distance via technology — particularly the Internet — with the promise that learning can take place at any time and in any place

The Role of Leukocyte-Platelet Rich Fibrin in Human Alveolar Ridge Preservation: A Randomized Clinical Trial

PURPOSE: The aim of this study is to examine the healing of intact extraction sockets grafted with leukocyte-platelet rich fibrin (L-PRF) as compared to sockets grafted with freeze-dried bone allograft (FDBA) and a resorbable collagen barrier membrane (RCM). METHODS: This prospective randomized, examiner blinded pilot study included 17 subjects randomized to two treatment groups. Serum total cholesterol, low density lipoprotein (LDL), 25-hydroxyvitamin-D3, and platelet counts were determined preoperatively in all subjects. The experimental arm consisted of 8 posterior tooth-bounded intact extraction sites receiving L-PRF plugs. The control group consisted of 9 posterior tooth-bounded intact extraction sites receiving FDBA and RCM. An acrylic stent was fabricated to take duplicate clinical and CBCT measurements immediately post-extraction and at time of implant placement. A repeat-measures analysis of variance was utilized for statistical analysis. RESULTS: The study failed to detect a clinical or radiographic difference between treatment groups in horizontal or vertical ridge dimension changes. Serum cholesterol, LDL, 25-hydroxyvitamin-D3, and buccal plate thickness had a non-significant effect on outcome measurements, although there was a high prevalence of hyperlidpidemia and hypovitaminosis in the study population. CONCLUSIONS: The alveolar ridge dimension changes in intact posterior extraction sockets may be similar when either L-PRF or FDBA and RCM are utilized as socket grafting material. Although there was a high prevalence of high cholesterol and low 25-hydroxyvitamin-D3 levels in the population, this study failed to detect a significant correlation between preoperative serum levels and postoperative ridge dimension changes

Examining the Relationship Between Word Reading Efficiency and Oral Reading Rate in Predicting Comprehension Among Different Types of Readers

To further explore contextual reading rate, an important aspect of reading fluency, we examined the relationship between word reading efficiency (WRE) and contextual oral reading rate (ORR), the degree to which they overlap across different comprehension measures, whether oral language (semantics and syntax) predicts ORR beyond contributions of word-level skills, and whether the WRE–ORR relationship varies based on different reader profiles. Assessing reading and language of average readers, poor decoders, and poor comprehenders, ages 10 to 14, ORR was the strongest predictor of comprehension across various formats; WRE contributed no unique variance after taking ORR into account. Findings indicated that semantics, not syntax, contributed to ORR. Poor comprehenders performed below average on measures of ORR, despite average WRE, expanding previous findings suggesting specific weaknesses in ORR for this group. Together, findings suggest that ORR draws upon skills beyond those captured by WRE and suggests a role for oral language (semantics) in ORR

The STAGES view of red spirals and dusty red galaxies: Mass-dependent quenching of star-formation in cluster infall

We investigate the properties of optically passive spirals and dusty red galaxies in the A901/2 cluster complex at redshift ~0.17 using restframe near-UV-optical SEDs, 24 micron IR data and HST morphologies from the STAGES dataset. The cluster sample is based on COMBO-17 redshifts with an rms precision of sigma_cz~2000 km/sec. We find that 'dusty red galaxies' and 'optically passive spirals' in A901/2 are largely the same phenomenon, and that they form stars at a substantial rate, which is only 4x lower than that in blue spirals at fixed mass. This star formation is more obscured than in blue galaxies and its optical signatures are weak. They appear predominantly in the stellar mass range of log M*/Msol=[10,11] where they constitute over half of the star-forming galaxies in the cluster; they are thus a vital ingredient for understanding the overall picture of star formation quenching in clusters. We find that the mean specific SFR of star-forming galaxies in the cluster is clearly lower than in the field, in contrast to the specific SFR properties of blue galaxies alone, which appear similar in cluster and field. Such a rich red spiral population is best explained if quenching is a slow process and morphological transformation is delayed even more. At log M*/Msol<10, such galaxies are rare, suggesting that their quenching is fast and accompanied by morphological change. We note, that edge-on spirals play a minor role; despite being dust-reddened they form only a small fraction of spirals independent of environment.Comment: Accepted for publication in MNRA

PIK3CA mutant tumors depend on oxoglutarate dehydrogenase

Oncogenic PIK3CA mutations are found in a significant fraction of human cancers, but therapeutic inhibition of PI3K has only shown limited success in clinical trials. To understand how mutant PIK3CA contributes to cancer cell proliferation, we used genome scale loss-of-function screening in a large number of genomically annotated cancer cell lines. As expected, we found that PIK3CA mutant cancer cells require PIK3CA but also require the expression of the TCA cycle enzyme 2-oxoglutarate dehydrogenase (OGDH). To understand the relationship between oncogenic PIK3CA and OGDH function, we interrogated metabolic requirements and found an increased reliance on glucose metabolism to sustain PIK3CA mutant cell proliferation. Functional metabolic studies revealed that OGDH suppression increased levels of the metabolite 2-oxoglutarate (2OG). We found that this increase in 2OG levels, either by OGDH suppression or exogenous 2OG treatment, resulted in aspartate depletion that was specifically manifested as auxotrophy within PIK3CA mutant cells. Reduced levels of aspartate deregulated the malate-aspartate shuttle, which is important for cytoplasmic NAD + regeneration that sustains rapid glucose breakdown through glycolysis. Consequently, because PIK3CA mutant cells exhibit a profound reliance on glucose metabolism, malate-aspartate shuttle deregulation leads to a specific proliferative block due to the inability to maintain NAD + /NADH homeostasis. Together these observations define a precise metabolic vulnerability imposed by a recurrently mutated oncogene. Keyword: PIK3CA; 2OG; OGDH; TCA cycle; glycolysisDamon Runyon Cancer Research Foundation (HHMI Fellowship

Civility and trust in social media

Social media have been credited with the potential of reinvigorating trust by offering new opportunities for social and political participation. This view has been recently challenged by the rising phenomenon of online incivility, which has made the environment of social networking sites hostile to many users. We conduct a novel experiment in a Facebook setting to study how the effect of social media on trust varies depending on the civility or incivility of online interaction. We find that participants exposed to civil Facebook interaction are significantly more trusting. In contrast, when the use of Facebook is accompanied by the experience of online incivility, no significant changes occur in users’ behavior. These results are robust to alternative configurations of the treatments