Tübingen, Universiẗat, Diss., 2002.

Thèse doctorat : Sciences de l'éducation : Lyon 2 : 1981. / Titre provenant de l'écran-titre. Bibliogr.. Index.

The petrology of the Sutherland Commonage olivine melilitite intrusives have been investigated using petrographic and chemical methods. The occurrence consists of a ring dyke which surrounds a centrally located sill complex. The rock of the ring dyke is a typical melilitite which consists of olivine in a groundmass of melilite, clinopyroxene, opaque spinel, nepheline and perovskite. The sill complex is a multiple intrusion and is comprised of a lower green melilitite and an overlying (and younger) grey melilitite. The green melilitite is deuterically altered and the original mineralogy is destroyed to a large extent. The grey melilitite contains autoliths of the green and is a fairly typical monticellitic melilitite in which phenocrysts of olivine are set in a groundmass of melilite, monticellite, opaque spine!, nepheline and perovskite. Microprobe analyses of clinopyroxenes indicate that they are aluminous titanian diopsides and salites which exhibit complex zonation patterns. They record magmatic conditions ranging from the intrusive stage to a final phase of magmatic evolution during which a vapour phase evolved after the majority of the groundmass minerals had crystallised. The chemistry of olivine phenocrysts suggests that the parent magma to the Commonage intrusives accumulated in a temperature-zoned reservoir at the base of the lithosphere. Large, unzoned olivine phenocrysts crystallised in this chamber. Subsequent rupture of the chamber and ascent of magma led to supercooling and the crystallisation of abundant, strongly zoned phenocrysts of smaller size. Olivine crystallisation continued until the magma reached crustal levels. It is inferred from the chemistry of chromites and magnetites that the magma in the ring dyke was more evolved than those in the sill complex and that very oxidising conditions prevailed in the grey melilitite during the crystallisation of magnetite in this intrusive type. The high fO₂ may have resulted from the degassing of CO₂ after intrusion. Major and trace elements have been analysed for in eleven whole rock samples and the ⁸⁷Sr/⁸⁶Sr ratio was determined for seven of the same samples. The results of the geochemical study suggest that the Commonage melilitites were derived by the melting of a recently metasomatised region of the asthenosphere, probably under the influence of an ocean-island-type hotspot situated in the lower mantle.

The applications of multispectral and morphometric image analysis to soil thin section descriptions is examined. It is shown that unsupervised classification and contrast stretching can be used to enhance and label features of interest. Morphometric measurements, allow the shape and abundance of features in thin sections to be compared and statistical relationships established. This method of analysis offers a precision beyond that which is possible using a qualitative approach. Using soil micromorphology as the main analytical technique a case study was carried out to evaluate the applicability of image analysis to an investigation of an archaeological site at Lairg in northern Scotland. The interactions of anthropogenic activity and pedogenesis since the Bronze Age is examined. The condition of the soils prior to the Bronze Age is not known because no buried soils predated this period. Evidence suggests that in freely draining situations complete podzols might have formed by this time. During the Bronze and Iron Age intensive cultivation of soils occurred with associated erosion. In areas of the site, where human activity is dated to the Post Medieval period, deepening of A horizons is apparent and the soils are maintained as Brown Podzols. In many areas where human activity stops stagnopodzols are the dominant soil type. The potential of image analysis to aid soil micromorphological descriptions is demonstrated. Contrast stretching aided a qualitative subdivision of thin section slides during the case study. Morphometric analysis confirmed a relationship between shape of voids and c/f ratios in an Iron Age buried A horizon, A PM buried A horizon and an undated deep topsoil. It is concluded that the full benefits of image analysis, when used as a routine tool to aid thin section descriptions, will only be realised when procedures become more interactive and processes can be speeded up.

This project has come about because of the need for Australian saxophonists to develop an awareness of saxophone history and culture in their own country. Dulcie Holland, William Lovelock and Margaret Sutherland were artists who were active and influential in the areas of performance, composition and pedagogy, helping to create and promote the musical arts in Australia during the first half of the twentieth century. The high regard in which they are held should be evidence enough that their works for saxophone must be performed by their fellow Australians as a part of a well rounded, international exposure to the very best repertoire available. Saxophonists in Australia will be able to place themselves in a relevant world context only when they are fully aware of the heritage their instrument has in their own country. The present editions (created using the type-setting software Sibelius 4) seek to make performance considerably easier by eliminating the need to use the composer's autograph manuscripts, which are sometimes difficult to read and understand, due to poor hand-copying or repeated photocopying which has subsequently made some pages illegible. The accompanying performance guides are designed as introductions, the first step for the young student wishing to tackle these national treasures.

M. Tech. Architecture (Professional) / Over the last decade, South Africa (RSA) has experienced a substantial growth in the field of astronomy and astrophysics. Post 2005, the largest optical telescope in the Southern hemisphere, known by its acronym, SALT, was constructed in RSA. It is expected that by 2024, this country will host the largest array of radio telescopes in the world, the Square Kilometre Array (SKA). It could be argued that RSA is at the forefront of modern cosmological research. This exponential growth in the field of astronomy has resulted in local astronomical bodies and universities falling behind in astronomy education. This provides a unique opportunity to strengthen the latter. The aim of this dissertation is to design an International School of Astronomy and Astro-Tourism Centre. The proposed building aims to introduce a unique facility in the Northern Cape that would benefit the field of astronomy worldwide. The proposed facility is situated at the South African Astronomical Observatory (SAAO) in Sutherland. It is nested within the South-west-embankment of the mountain, currently hosting the Southern Africa Large Telescope (SALT). The resultant design takes on a linear building typology with radial aspects to document astronomical events. The project investigates the semi-arid Karoo climate and how the resultant architecture reacts to harsh environmental conditions.

Thesis (MA (Geography and Environmental Studies))--University of Stellenbosch, 2009. / This study combines qualitative and quantitative techniques in an inquiry into the influence of rural tourism on the development and structure of Sutherland from 2001 till 2005. Sutherland, like most small rural towns in the Central and Western Karoo, is/was in the process of decline. Rural tourism is seen as a solution to curb the process of decline. The study investigates this assumption by analyzing the positive and negative impacts of tourism on the economic, social and environmental spheres of Sutherland and looks at concomitant structural changes. Special emphasis is placed on the changing nature of Sutherland’s reason for existence and the dualistic processes of degradation on the one side and tourism development on the other. These complex time-spatial and site-specific trends are analyzed and recommendations are made for the management of the tourism industry of Sutherland.

Thesis (MComm (Business Management))--University of Stellenbosch, 2005. / Tulips are the second largest floral commodity that is traded globally. Currently Holland controls half of the 20 billion Dollar tulip bulb market, although immense pressure from European institutions may serve to change this phenomenon in the near future. Not only do increasing labour costs and stricter legislation on the usage of pesticides impair this industry, but the Dutch government also places huge pressure on its own producers to convert scarce agricultural land into residential areas. These conditions could therefore provide a possible market opportunity for farmers from other countries. Due too the fact that the price of tulip bulbs is based on the size of the flower and the length of the floral stem, floral farmers generally gain an extra 2-3 cm stem length via physically cutting it out of the tulip bulb. Therefore, floral farmers annually destroy their whole supply of tulip bulbs, resulting in a need to reacquire bulbs from bulb growers. Due to the fact that the lifespan of cut tulip flowers is generally not more than seven days, Dutch land rezoning ought to result in tulip bulb production being the production component which could truly be relocated in a global context. In this study, an economic analysis is therefore conducted to ascertain South Africa’s potential to produce tulip bulbs in order to supply the growing demand in the Netherlands. Information was gathered by performing a literature study of existing literature and by conducting structured interviews with numerous experts in their various fields of operation. Due to the fact that expertise in South Africa was very limited, a large number of interviews were scheduled with experts from Holland and Germany. The presence of strict non-disclosure contracts resulted in a situation where interviews had to be conducted with individuals who are two to three levels removed from any relevant tulip organisation. The study was conducted through first analysing the global market from a horticultural perspective and thereafter from an economic-logistical stance. It was established that tulip bulbs are very temperature sensitive and therefore have to be produced far from any tropical zones. Since Sutherland’s winter temperature is similar to that of Dutch production areas, South African tulip bulbs could be planted in Holland. The difference in seasons of production allows farmers from the Southern Hemisphere to predict the extremely fashion sensitive market in one year less. Via moving production activities between alternative hemispheres, off seasons can be utilized for production, which could result in fashions being predicted with a greater sense of accuracy. If unfashionable bulbs are produced, a loss of up to R 34 129,87 per ha can be incurred, while mid-priced bulbs and fashionable bulbs can earn respectively R80 118,09 and R 122 626,57 per ha. Projections are however based on the prices of a bear phase where the market currently pays up to 75% less for bulbs than it did three years ago. The production costs in Sutherland could be cut by R 15 750 if it is decided to mechanise production but simultaneously this action will result in an increase of R120 000 in new capital equipment required. The use of 40 feet High Cube Reefers reduces transportation costs considerably and 1 042 437 bulbs with a circumference of between 10 and 12 cm can be shipped in such an container via utilizing South African produced SN 64190 crates and four way export pallets. Market penetration remains an important consideration since a farmer’s production history is very important in the international market environment. Partnerships, production of larger bulbs, organic production and seasonal production in alternating hemispheres, remain some of the most suitable techniques for market penetration.

This thesis deals with the following question: are there more eigenfunctions, other than the already known eigenfunctions, of the spin chain with elliptic interactions known as the Inozemtsev spin chain? The Inozemtsev spin chain interpolates between two quantum integrable spin chains, theHeisenberg spin chain and the Haldane-Shastry spin chain. Therefore it is interesting to explore eigenfunctions of the Inozemtsev spin chain in greater detail. Moreover, there exists connections between spin chains and their corresponding spinless continuum model, namely theCalogero-Sutherland models; a derivation of the connection between the Haldane-Shastry spin chain and the trigonometric interacting Calogero-Sutherland model is presented in this thesis. These connections state that the eigenfunctions of the Calogero-Sutherland model are also eigenfunctionsof the corresponding spin chain. An established connection between the Inozemtsev spin chain and the elliptic interacting Calogero-Sutherland model yields exact eigenfunctions with simple poles at coinciding arguments of the Inozemtsev spin chain. However, there are eigenfunctions of theelliptic Calogero-Sutherland model with second order zeros instead of simple poles at coinciding arguments. It is therefore interesting to see if a connection exists that relates the eigenfunctions of the elliptic Calogero-Sutherland model with second order zeros to eigenfunctionsof the Inozemtsev spin chain also with second order zeros. The main goal of this thesis is to explore eigenfunctions of the Inozemtsev spin chain with second order zeros for two magnons. This thesis uses analytical methods for finding these eigenfunctions and numerical methods have beenresorted to in the end. The numerical results indicate that the functions explored in this thesis fail to parametrise the eigenfunctions of the Inozemtsev spin chain, except for a few special cases. / Den här avhandlingen behandlar följande frågeställning: finns det fler egenfunktioner än de redan kända till spinnkedjan med elliptisk växelverkan känd som Inozemtsevs spinnkedja? Inozemtsevs spinnkedja interpolerar mellan Heisenbergs spinnkedja och Haldane-Shastrys spinnkedja som båda ärkvant-integrerbara. Därför är det intressant att vidare utforska egenfunktionerna hos Inozemtsevs spinnkedja. Det finns kopplingar mellan spinnkedjor och spinnfria en-dimensionella kontinuumsystem, nämligen Calogero-Sutherlands system; en sådan koppling mellan Haldane-Shastrysspinnkedja och Calogero-Sutherlands modell med trigonometrisk växelverkan härleds i denna avhandling. Dessa kopplingar konstaterar att egenfunktionerna för Calogero-Sutherland systemet är egenfunktioner för spinnkedjan också. En koppling existerar mellan Calogero-Sutherland modellen med elliptisk växelverkan och Inozemtsevs spinnkedja vilket ger exakta egenfunktioner hos Inozemtsevs modell med enkla poler vid sammanfallande argument. Däremot existerar det egenfunktioner till Calogero-Sutherland modellen med elliptisk växelverkan med andra ordningens nollor vid sammanfallande argument istället för enkla poler. Det är därför intressant att undersöka om det existerar en koppling mellan dessa två system med egenfunktioner med andra ordningens nollor; det här skulle då ge exakta egenfunktioner till Inozemtsevs spinnkedja med andra ordningens nollor. Detta är huvudsyftet med avhandlingen. Egenfunktioner med andra ordningens nollor för två magnoner undersöks. Avhandlingen använder sig av analytisk metod och har prövats med numeriska metoder. De numeriska resultaten indikerar att de undersökta funktionerna i denna avhandling misslyckas med att parametrisera egenfunktionerna till Inozemtsevs spinnkedja förutom vissa specifika fall.

In this paper I will analyze the film, Whistling Dixie, as it relates to filmmaking principles such as: development, pre-production, production, and post-production. After evaluating all these aspects of the film, I will then make conclusions based on goals I had and how successful or unsuccessful I was in reaching these goals. I will include notes from unbiased audience members in evaluating this film.