Abstract It is the intention of this thesis to bring together the existing scattered data concerning the Amphipoda of southern Africa, to add records from unidentified collections and to present the whole in a form that will provide a firm basis for future work in this field. The collections examined are principally those of the University of Cape Town, the South African Museum and the National Institute for Water Research. These collections are together much larger than any previously report...
ABSTRACT Closed expressions for differential cross sections are derived from the Austern-Blair theory of inelastic nuclear scattering. These formulae are an extension of the strong absorption model of Frahn and Venter for elastic scattering. AU the well-known features of inelastic angular distributions of composite particles are shown explicitly. These include effects of. the multipolarity of the transition, the nuclear interaction, the Coulomb force and the shape of the reflection coefficien...
Abstract It has been found that the gas chromatography of ammonia on certain fixed phases containing salts yields chromatograms consisting of a peak followed by a plateau or a succession of 'plateaux of progressively decreasing height. Such chromatograms have been interpreted in terms of aromine formation in the column,, ~ and methods have been theoretically elaborated.for using measurements on the chromatograms to find the dissociation pressures of the ammines and the ratios of amnonia taken...
ABSTRACT Luxury goods, used in mediaeva1 long distance trade ca. AD 900-1250, found an important market among the Iron Age peoples of southern Africa. Indirect evidence of this trade can be seen in the form of archaeological collections of glass beads at sites throughout Africa and Southeast Asia. Thousands of beads have been found at Iron Age sites in the eastern Transvaal Lowveld and at inland sites along the Limpopo Valley and in Botswana. Similar looking types of beads, referred to as sma...
A Study Of Lipids From Animal Skin Secretions
ABSTRACT FROM SALISBURY TO HARARE : THE GEOGRAPHY OF PUBLIC AUTHORITY FINANCE UNDER CHANGING IDEOLOGICAL CIRCUMSTANCES This study is based on the assumption that money 'powers the urban system'. Its focus is the geography of public finance in Harare and ideologically inspired change in urban management. The context is the changing circumstances attendant upon the transfer of power from minority White settler colonial rule to Black majority rule in Zimbabwe. The ruling ZANU-PF party professed ...
ABSTRACT This investigation is a case study of landscape architectural design education in South Africa. Current forms of landscape architectural education are influenced by Global North perspectives and often, if not consciously, privilege particular ways of meaningmaking, and exclude or marginalise experiences or ways of knowing that are different. The aim of this research is to develop a landscape architectural pedagogy for diversity that fosters multiple perspectives and valorises resourc...
Abstract 3D cine DENSE MRI: Ventricular segmentation and myocardial strain analysis Daniel Alejandro Auger 11 February 2013 Displacement encoding with stimulated echoes (DENSE) is a quantitative magnetic resonance imaging (MRI) technique which measures myocardial displacement at a pixel resolution. Regional myocardial strain can then be calculated, providing a useful clinical measure of myocardial function. Right ventricular (RV) function is difficult to quantify because of its asymmetrica...
ABSTRACT Despite the critical relationship between election campaigns and the quality of democracy, it is an understudied phenomenon. Moreover, in South Africa, there has never been a systematic study of an entire election campaign. In this thesis I assess whether the 2004 election campaign hindered or enhanced the quality of South Africa’s democracy. I adapt Lasswell’s model of persuasive communication (which views the source, content, medium, recipient and effect as crucial parts of th...
Abstract The crystal structures or a number of molecular complexes formed by 4a4'•din1trodiphenyl with various diphenyl derivatives are described. The general type of structure is undoubtedly the same tor all the complexes examined and the typical arrangement may be taken as that in the complex of 4·z4 1 .. dinitrodiphenyl with 4-hydroxydiphenyl, the structure of which has been tully determined. As shown 1n fig. 7 the dinitrodiphenyl molecules form layers in face•centred array and lie on...
ABSTRACT Strategic management is a critical factor in strengthening organizational performance through effective decision making, systematic strategy formulation and implementation of strategic goals for the effective performance of an organization. Many successful organizations have consistently performed better than their competitors mainly because they have implemented strategic management. The Ministry of Education, Science and Technology (MOES&T) in the Republic of Kenya expects that all...
The theory of knowledge as espoused by David Hume is built on the principle of sense experience as a basis of human development. Kenya‟s secondary schools education appears to have borrowed from various philosophical theories, with Hume‟s theory of knowledge being one of them. Hence the study aimed at evaluating this theory and its relevance in secondary school education level in Baringo Central District as a point of reference. The study employed descriptive ex post facto research d...
ABSTRACT Deforestation and forest degradation are among the sources of greenhouse gases emissions. Therefore, reducing emissions from deforestation and forest degradation, ‘plus’ forest conservation, sustainable management of forests and enhancement of forest carbon stocks (REDD+)are considered asa unique opportunity of improving forest governance in developing countries. REDD+ has already been included as amitigation mechanismin the Paris Agreement onclimate change.Tanzania is among th...
ABSTRACT Rice is the main food staple in Zanzibar, accounting for about 54 percent of the total caloric intake. Zanzibar imports about 80 percent of its rice requirements. Based on the potential of 3 tons per hector in rain fed and 6 tons per hector in irrigated rice. The government of Zanzibar intends to reduce external dependency from current 80 to 40 percent as part of country’s food self-sufficiency goal. This study intends to inform policy by providing quantitative evidence about farm...
EXTENDED ABSTRACT This study was undertaken to reduce the losses caused by Bactrocera dorsalis (Hendel) in Manica province, Mozambique, through an optimized integrated pest management (IPM) package. It involved interviews with farmers to collect baseline information on awareness of fruit producers regarding fruit fly pests and their management so that an IPM package can be developed based on the farmers’ needs. Additionally, systematic trapping data of B. dorsalis seasonality and damage we...