60 research outputs found
An employer demand intelligence framework
Employer demand intelligence is crucial to ensure accurate and reliable education, workforce and immigration related decisions are made. To date, current methods have been manually intensive and expensive — providing insufficient scope of information required to address such important economic implications. This research developed an Employer Demand Intelligence Framework (EDIF) to address detailed employer demand intelligence requirements. To further the EDIF’s functionality, a semi-automated Employer Demand Identification Tool (EDIT) was developed that continuously provide such intelligence
Nutritional management of gastrointestinal malignancies
The evidence connecting food and gastrointestinal cancers from epidemiological studies, case-control studies, and prospective observational studies, indicates that determining the independent effects of specific nutrients is extremely diffi cult, given the many potential environmental factors to consider. The nutritional management of a patient with gastrointestinal cancer fi rst begins with an appropriate nutritional assessment, seeing that several factors could affect the patient’s nutritional status. The most signifi cant dietary advice for cancer patients in general, is to consume a signifi cant amount of energy daily to maintain current body weight, as well as a liberal amount of protein. In cancer patients requiring gastrointestinal surgery, the benefi t of delaying surgery to attain improved nutritional status needs to be determined for improved outcomes. Postoperatively, severely malnourished cancer patients, and patients with an anticipated inadequate nutritional intake for seven days or longer, will benefi t from postoperative TEN, given within 48 hours after surgery. Regular monitoring and adjustments to nutritional prescriptions is imperative in order to improve the cancer patient’s nutritional status within the context of the prognosis.
Litter characteristics of pine shavings, bio-secure pine shavings and sunflower hulls and its impact on broiler performance
The aim of this study was to investigate the physical characteristics of three litter materials, namely pine shavings (PS), bio-secure, fumigated pine shavings (BS) and sunflower hulls (SH) and its influence on broiler performance over a 33-day production cycle. The experiment was conducted in commercial poultry houses holding 42,500 chicks each, utilising a randomised block design with six house replicates per treatment. Litter samples were collected weekly for analyses of moisture, water-holding capacity, bulk density, pH and litter caking. Broiler footpad dermatitis was monitored at 21 and 31 days, together with acid detergent fibre (ADF) concentration of gizzard content, gizzard weight and small intestinal weight and length of 120 birds per treatment. Broilers across treatments consumed litter material which was evident in increased ADF levels of gizzard contents relative to feed. The SH contained more nutrients based on proximate analysis as compared to other treatments. Rearing on SH led to lower 7-day cumulative mortality, higher kilograms of broilers produced per square meter, average daily gain and slaughter weight. Improvements seen with SH did not alter commercial indicators, namely, production efficiency factor and feed conversion ratio. Litter converged toward similar physical characteristics at the end of production cycles when few differences were observed between treatments due to addition of feed, feathers and excreta
A comparison of physical characteristics of pine shavings biosecure pine shavings and sunflower hulls as litter material and its influence on broiler performance
This study was conducted to investigate three different litter materials, namely pine shavings (PS), bio-secure, fumigated pine shavings (BS) and sunflower hulls (SH) on their physical characteristics and how this influenced broiler performance parameters. The physical characteristics examined included bulk density (BD), pH, water-holding capacity (WHC), litter caking, proximate laboratory analysis of the litter materials and propensity to litter beetle infestation. Broiler performance was measured by production parameters: average daily gain (ADG), feed conversion ratio (FCR), production efficiency factor (PEF), slaughter weight, kilograms of broilers produced per m2, mortalities and total feed consumed. Broiler gut development (weight and length) and footpad dermatitis scoring were also investigated. The results of this study revealed that litter converged toward similar physical characteristics (P > 0.05) at the end of a production cycle due to addition of feed, feathers and excreta. Broilers that had access to litter materials consumed their litter which was evident in the increased acid detergent fibre (ADF) levels found in gizzard contents versus feed. This led to improved gut development in the case of SH which translated to improved (P 0.05) the commercially measured figures of PEF and FCR. The SH was associated with an insect (Tribolium castaneum) not often associated with poultry houses which could hold as yet unidentified disadvantages to producers. The SH had the lowest overall Alphitobius diaperinus activity (P 0.05). Management of litter remains an important part of achieving production targets, irrespective of the litter type used.Dissertation (MSc (Agric))--University of Pretoria, 2017.Animal and Wildlife SciencesMSc (Agric)Unrestricte
INbetween
‘The non-dialectical mean between which extremes are suspended constitutes something like an interface, which is the condition of the possibility and impossibility of seemingly seamless systems and structures. When radically conceived, this interface extends beyond every margin of difference to ‘contaminate’ opposites that once seemed fixed.’ (Taylor 1997: 269) The site is positioned at the juxtaposition of: poor opposite rich, inviting opposite closed, dense urban fabric opposite sprawling suburban, exclusive opposite inclusive. Therefore the question arise: when dealing with an island placed amidst these contradictions, how do you include and acknowledge all? By providing for the one inevitably leads to the exclusion of the other, yet again reinforcing the legacy apartheid left South African urban environments. Therefore, the search for the INbetween informs the merging of these realms by means of a public park and recreational youth facility at the juxtaposition of these contrasting realms. The merge creates a dynamic tension between public / private, rich / poor, active / contemplative, movement / rest and inside / outside which informs the design philosophy. The architecture investigates the fading of boundaries. The design problem is a youth facility with recreational, educational and counselling functions, for youth living within the inner city area of Hillbrow, Houghton, Berea and Parktown. It is part of the City of Johannesburg’s Child Friendly City Initiative (CFCI) and will be managed by Non Governmental Organisations (NGO) operating in the area. Therefore, the centre will be a facility of which youth can take ownership of. A platform for ‘accidental’ interaction between the people from these different communities. The centre needs to provide opportunities and facilities that would entice, intrigue and motivate in order to resist the attraction of street life and drugs, through the provision of recreational activities, entertainment, educational facilities in the form of skills and entrepreneurial training, counseling and medical assistance.Dissertation (MArch(Prof))--University of Pretoria, 2007.Architectureunrestricte
Experimental setup for the ultrasonic fractionation of flowing whole blood in a capillary
publishedVersionPeer reviewe
Community Engagement newsletter, Faculty of Veterinary Science, Summer, February 2018
Community education on small scale chicken farming / Mareli Smalberger -- Hluvukani experience / Elza Hollenbach, Melyssa van Heerden, Ivan van Wyk and Anke Venter -- Community engagement in stormy Cape Town / Lindi Smit, Carrea Greeff, Samantha Domenico and Fladia Buongiorno -- World Rabies Day: Faculty partners with GDARD and community partners at Temba Animal Clinic / Lesego Teffu (Public Relations Coordinator) and Dr Eugene Machimana (Senior Lecturer) -- Say bye to rabies, Mmammundu Primary School / Kenja-Lee MillarNews articles with colour photos about the various community engagement projects of the Faculty of Veterinary Science, University of Pretoria.ab201
A world of copper: globalizing the Industrial Revolution, 1830-70
For most of human history the smelting of metallic ores has been performed immediately adjacent to the ore body. In the 1830s the copper industry that was centred on Swansea in the UK departed abruptly from that ancient pattern: Swansea smelters shipped in ores from very distant locations, including sites in Australasia, Latin America, and southern Africa. Swansea became the hub of a globally integrated heavy industry, one that deployed capital on a very large scale, implanted British industrial technologies in some very diverse settings, and mobilized a transnational workforce that included British-born ‘labour aristocrats’, Chinese indentured servants, and African slaves. This paper explores the World of Copper between its inception c.1830 and its demise in the aftermath of the American Civil War. It asks what the experience of this precociously globalized industry can contribute to some current concerns in global history
Total synthesis of (+)-azimine via diastereoselective aminopalladation
The aminopalladation of amino allylic alcohol using Cl2Pd(MeCN)(2) in CH2Cl2 gave the 2,6-disubstituted piperidine with excellent diastereoselectivity. This compound was successfully converted into (+)-azimine (1) using cross-metathesis and Shiina macrolactonization.ArticleTETRAHEDRON. 69(39):8349-8352 (2013)journal articl
Aspects of the history of copper mining in Namaqualand
In undertaking this work, the object has been to present a picture of Namaqualand and its mines. This picture is by no means complete, but it is hoped that the pages which follow will in a small way contribute something to the history of Namaqualand. The first chapter deals with the early explorations. Not all of the early travellers to Namaqualand have been mentioned, since not all have had anything of significance to say on the development of the copper mines. Nothing is said of Le Vaillant and John Barrow, to name but two. What we have attempted to show is that, from the very earliest times of European settlement at the Cape, the existence of copper in Namaqualand was known, but that the difficulties of transport prohibited the development of these mines. The second chapter deals with the story of the South African Mining Company. This company was the first mining concern actually to commence operations in Namaqualand, and the first public mining company in South African history. It is for these reasons that its development has been dealt with so extensively. The third chapter deals with the copper mining mania of the 1850's. All too often, the very existence of such a boom is forgotten. Its importance lies in the fact that it was the first purely speculative boom of any extent in the history of South Africa. It marked South Africa's emergence into one of the typical features of a modern economy. The fourth chapter is concerned with the question of leases. The reason for devoting special attention to this is that the final settlement of the lease questions involving the vesting of mineral rights to the mission ground in the state, has been a factor contributing to the present state of conditions existing in these stations. It is a matter of interest, but also of regret, that the development of Namaqualand's mineral wealth was in many respects disastrous for the original inhabitants of the territory. The fifth chapter deals with the transport problem from 1852 until 1876, when the Cape Copper Mining Company constructed its railway. Transport was, and still is, the most important obstacle to the exploitation of Namaqualand's mineral wealth. The first part of the sixth chapter deals with the development of the industry from the commencement of the Cape Copper Company's railway, until 1937, when the O'okiep Copper Company commenced operations. This is rather a long period, and one about which not much is known. An absence of company records has made this section rather impressionistic. The second part of this chapter deals with the history of the O'okiep Copper Company, a company which is still in existence, and which has at present production rates, a life of some ten years. Like its predecessors, the Cape Copper Company and the Namaqua Copper Company, a foreign based organization, its role in the development of Namaqualand is uncertain
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