Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2006. / In many part of the world, but especially in Africa, land degradation leads to severe soil erosion and high sediment yields. Mathematical models and empirical methods can be used to simulate the sediment yields. In many cases spatial and temporal data are however limited in the large catchments often found in Africa. A model should be able to simulate the long-term hydrology and sediment yields for sub-catchments and should be physically based as far as possible. In this thesis several models were evaluated and the agrohydrological model of the University of Kwa- Zulu-Natal (ACRU) was applied on two large catchments with limited data in Kenya. The key aim of the thesis was to assess the applicability of the ACRU modelling system for sediment yield prediction in large catchments under conditions of limited data availability. Two catchments in Kenya which drain into Lake Victoria were selected for this research: Nyando (3562 km2) and Nzoia River (13692 km2). Lake Victoria, with a surface area of 68000 km2 and an adjoining catchment of around 184200 km2, is the second largest fresh water lake in the world and the largest in the tropics. The Lake Victoria Basin area is increasingly being used for domestic, agricultural and industrial purposes by the three riparian countries Kenya, Tanzania and Uganda. About 21 million people (year 2000) rely primarily on subsistence agricultural and pastoral production for their livelihoods. But pervasive poverty has hindered sustainable use of the land resources and there has already been considerable land degradation. There has also been expansion of the increasing on-site erosion (overland flow) and reducing buffering capacity of the natural vegetation in wetlands and in the riparian zones (Hansen, Walsh, 2000). A regional assessment identified the Nyando River Basin and Nzoia River Basin as major sources of sediment flow into Lake Victoria on the Kenyan side of the Lake. Accelerated run off sheet erosion over much of the Nyando catchment area has led to severe rill, gully and stream bank erosion in lower parts of the river basin (Swallow, 2000). The ACRU model is a hydrological model using daily time steps with the Modified Universal Soil Loss Equation (MUSLE, Williams, 1975) module to simulate soil erosion. The MUSLE sediment yield module uses factors that characterize physical conditions on the surface of a catchment as input information. Data required for the model include: sub-catchment daily rainfall, historical flow records, general catchment topographical information, meteorological information, land use and cover, soil characteristics, sediment yield data, etc. The model used daily time steps for a 55 years record for the period 1950 to 2004. During calibration it was found that the sediment yield is overestimated which was expected since the model is a soil erosion model (based on MUSLE). The model was calibrated in each catchment against observed sediment load data, but this data were limited. Verification of the model was carried out by using satellite images and independent sediment load data when available. Scenario analysis was carried out by changing land use in the model to investigate how soil erosion could be reduced. Grassland to replace subsistence farming was found most effective, but irrigated sugarcane was also investigated. The model was found to be very effective in indicating which sub-catchments contribute most of the sediment yield. Under limiting data conditions it was found that it is very important to calibrate the model against field data. The most sensitive parameters affecting the sediment yield were found to be: a) Hydrological: • Daily rainfall spatial distribution of rain gauge • Time of concentration • Mean annual precipitation • Minimum and maximum temperature • Monthly evaporation b) Soil and catchment characteristics: • Number of sub-catchments making up catchment in model • Catchment slope and slope length, steepness factor • Land cover • Crop coefficient • Soil texture class and depths • Soil erodibility factor

Conflict of interest allegations became a prominent part of the political and public sector in the 1980s and 1990s in Australia and elsewhere. The arena of policing was not immune, and in Victoria, the Ombudsman drew particular attention to the problem and expressed concern about the rise in public complaints relating to alleged conflicts of interest on the part of police officers. Against this background, permission was granted by Victoria Police for a major study of conflict of interest complaints against police officers within their jurisdiction. Access was granted to all public complaint case files where conflict of interest was the focus of the allegations, from the period 1988???1998. A total of 377 usable complaints files were examined, involving 539 police officers. Through extensive examination and analysis of these complaint case files, a comprehensive map of the particular kinds of interest involved, the nature of the conflicts with official police duties, and the particular contexts within which conflicts of interest emerged, was developed. Analysis of the case files identified 25 different types of problems related to conflict of interest. These were spread across the private and public realms of police officers??? involvements. Previous studies of conflict of interest have focused largely on the opportunities for misconduct arising in the public realm of police work and police duty, largely neglecting attention to the private realm of the relationships and involvements of a police officer that give rise to conflicts of interest. In this study, the specific private interests that gave rise to problems were able to be identified in 35 percent of all cases. Three broad problem areas were identified: (i) outside employment, private business interests, political, social, and sporting interests and involvements; (ii) family-based involvements, especially those involving family law problems; and (iii) problematic personal relationships, including relationships with criminals, informers, and persons of ill repute. These conflicts of interest were related to a range of breaches of official police duty, including the misuse of police authority for personal or family benefit, the use of police position to facilitate personal relationships, and inappropriate disclosure of confidential police information. When the conflict of interest identified related specifically to a police officer???s official or public role as a member of the police force, the main types of misconduct identified included three broad areas: (i) the use and abuse of police powers and authority; (ii) the use and abuse of police resources, including information; and (iii) the receipt of gratuities and breaches of the law. These problems were shown to play out in a range of ways, encompassing such behaviours as misuse of the police identity, inappropriate accessing of police information, involvement in investigations where the police officer concerned has a personal interest in the matter, failing to take appropriate police action against friends, family, or associates, the exercise of improper influence in civil matters, and engagement in harassment and discrimination. This study offers some important conceptual developments in relation to the notion of conflict of interest, focusing on the importance of the distinction between a conflict of interest and an associated breach of duty. The study noted that it is often erroneously assumed by police that if there is no breach of duty evidenced, then there is no problem of conflict of interest. The study also offers an important insight into the oversight and accountability processes involved in Victoria Police, emphasising the importance and effectiveness of the oversight role of the office of the Victorian Ombudsman. Evidence also suggests that the internal review processes within Victoria Police are by-and-large stringent, and that senior police management are genuinely interested in making police officers more accountable for their actions. However, it is concluded that both front-line operational police officer and police management often have a limited understanding of conflict of interest, and problems attendant to conflicts of interest. The study???s insights into the problem of conflict of interest are significant insofar as this problem is related to police misconduct???ranging from minor to serious???of various kinds. Attention to the problem of conflict of interest may be an important element in preventing ???upstream??? police misconduct and corruption.

Conflict of interest allegations became a prominent part of the political and public sector in the 1980s and 1990s in Australia and elsewhere. The arena of policing was not immune, and in Victoria, the Ombudsman drew particular attention to the problem and expressed concern about the rise in public complaints relating to alleged conflicts of interest on the part of police officers. Against this background, permission was granted by Victoria Police for a major study of conflict of interest complaints against police officers within their jurisdiction. Access was granted to all public complaint case files where conflict of interest was the focus of the allegations, from the period 1988???1998. A total of 377 usable complaints files were examined, involving 539 police officers. Through extensive examination and analysis of these complaint case files, a comprehensive map of the particular kinds of interest involved, the nature of the conflicts with official police duties, and the particular contexts within which conflicts of interest emerged, was developed. Analysis of the case files identified 25 different types of problems related to conflict of interest. These were spread across the private and public realms of police officers??? involvements. Previous studies of conflict of interest have focused largely on the opportunities for misconduct arising in the public realm of police work and police duty, largely neglecting attention to the private realm of the relationships and involvements of a police officer that give rise to conflicts of interest. In this study, the specific private interests that gave rise to problems were able to be identified in 35 percent of all cases. Three broad problem areas were identified: (i) outside employment, private business interests, political, social, and sporting interests and involvements; (ii) family-based involvements, especially those involving family law problems; and (iii) problematic personal relationships, including relationships with criminals, informers, and persons of ill repute. These conflicts of interest were related to a range of breaches of official police duty, including the misuse of police authority for personal or family benefit, the use of police position to facilitate personal relationships, and inappropriate disclosure of confidential police information. When the conflict of interest identified related specifically to a police officer???s official or public role as a member of the police force, the main types of misconduct identified included three broad areas: (i) the use and abuse of police powers and authority; (ii) the use and abuse of police resources, including information; and (iii) the receipt of gratuities and breaches of the law. These problems were shown to play out in a range of ways, encompassing such behaviours as misuse of the police identity, inappropriate accessing of police information, involvement in investigations where the police officer concerned has a personal interest in the matter, failing to take appropriate police action against friends, family, or associates, the exercise of improper influence in civil matters, and engagement in harassment and discrimination. This study offers some important conceptual developments in relation to the notion of conflict of interest, focusing on the importance of the distinction between a conflict of interest and an associated breach of duty. The study noted that it is often erroneously assumed by police that if there is no breach of duty evidenced, then there is no problem of conflict of interest. The study also offers an important insight into the oversight and accountability processes involved in Victoria Police, emphasising the importance and effectiveness of the oversight role of the office of the Victorian Ombudsman. Evidence also suggests that the internal review processes within Victoria Police are by-and-large stringent, and that senior police management are genuinely interested in making police officers more accountable for their actions. However, it is concluded that both front-line operational police officer and police management often have a limited understanding of conflict of interest, and problems attendant to conflicts of interest. The study???s insights into the problem of conflict of interest are significant insofar as this problem is related to police misconduct???ranging from minor to serious???of various kinds. Attention to the problem of conflict of interest may be an important element in preventing ???upstream??? police misconduct and corruption.

This thesis focuses on the changes to law enforcement precipitated by the establishment of counter terrorist squads within State police forces during the late 1970's. It looks at the impact of Victoria's specialist counter terrorist squad, the Special Operations Group (SOG), on policing in Victoria and asks whether the group has led to the development of a more 'military based' approach to policing. The research demonstrates that the SOG has been the harbinger of more military styles of policing involving high levels of confrontation, more lethal weapons and a greater range of weapons and more frequent recourse to deadly force. The establishment of groups like the SOG has also undermined Australia's democratic traditions by blurring the boundaries between the police and military and weakening the safeguards which have in then past prevented military force being used against citizens. / The SOG has acted as a vanguard group within Victoria police, anticipating and leading progress towards a range of new military-style tactics and weapons. The SOG, although relatively small in number,, has had a marked influence on the tactics and operations of police throughout the force. The group was never contained to dealing with only terrorist incidents but instead used for a range of more traditional police duties. While terrorism has remained rare in Australia the SOG has nevertheless expanded in size and role. Because the SOG is considered elite and because the SOG are frequently temporarily seconded to other areas of policing, SOG members provide a role for other police and have the opportunity to introduce parliamentary tactics into an extended range of police duties. The parliamentary skills developed by the SOG have been passes on to ordinary police through training programs headed by former SOG officers. In addition, the group has effectively been used as a testing ground for new weapons. The structure of the Victoria Police Protective Security Group and the way public demonstrations and industrial disputes are viewed in police and security circles ensure that parliamentary counter terrorist tactics will be used to stifle dissent and protest. The move towards paramilitary policing is necessarily a move away from the police mandate to protect life, keep the peace and use only minimum force. / The interrogation of SOG and SOG tactics into everyday policing has occurred without any public debate or recognition of the important democratic traditions that have ensured that military force is not used against citizens except in the most extreme circumstances. Although the SOG is not formally part of the military it is nevertheless a significant parliamentary force virtually indistinguishable in terms of the weapons and levels of force at its disposal from the military proper.

[Truncated abstract] The aim of the research was to explore the association between wrist guard use and wrist fracture risk in snowboarders in Australia. During the study, the opportunity was also taken to examine the relationship between wearing wrist guards and the severity of wrist and elbow injury. A case-control study was conducted at the Mount Buller Medical Centre, Victoria, Australia. A total of 494 participants was recruited during the 2004 and 2005 ski seasons. Cases were defined as any snowboarder seen at the Clinic with a fractured wrist (N = 119), and controls as any snowboarder seen at the clinic for any reasons other than a fractured wrist (N = 375). Severity of forearm injuries were defined and analysed separately. Study participants completed a questionnaire consisting of: basic demographics (age and sex only); wrist guard use on the day of presentation; normal use of protective equipment; the number of days spent snowboarding that season; the ability of the snowboarder; and ski run difficulty. Risk taking behaviour was assessed by a history of any previous fracture or joint injury and psychometric questions. Clinic medical staff recorded site and severity of fractures and soft tissue injuries. Logistic regression was used to obtain adjusted odds ratios for these risk factors against the main outcome measure. Presence of wrist fracture and injury in snowboarders with and without wrist guards. ... There was a significant association between wrist guard use and soft tissue elbow injuries (adjusted odds ratio = 17.6, p = 0.011, 95% CI: 1.93 – 160.2), but no significant association with elbow fractures (adjusted odds ratio = 1.84, p = 0.385, 95% CI: 0.46 – 7.30). There was thus no evidence in this study that wrist guards increase the occurrence of other severe injuries in the forearm by transferring the impact force away from the protected wrist up the arm. No evidence was found for compensatory risk taking behaviour in participants wearing protective equipment. A local injury prevention strategy was implemented in schools in the Mt Buller district during the course of this study. Education about the protective effects of wrist guards enabled a policy change in the local secondary college so that wrist guard use is now mandatory for all snowboarders in the school ski programme: That policy states:

The study explored, described and explained the current models of voluntary counselling and testing services delivery and analysed the extent to which a given VCT model had influenced uptake of VCT services in the fishing communities along the shores of Lake Victoria, in Wakiso District, with an aim of designing optimal VCT service delivery strategies. The study was therefore exploratory, descriptive and explanatory, and collected both qualitative and quantitative data in a three-phased approach. Phase I involved the Kasenyi fishing community respondents, while phases II and III involved VCT managers and VCT counsellors at the Entebbe and Kisubi Hospitals. The findings indicated that VCT services are generally available onsite at health facilities, and in the field through mobile VCT outreach or home-based VCT services provided at clients’ homes. Both client-initiated and health provider-initiated VCT services are available and services are integrated with other health services. Despite the availability of VCT, only about half of the respondents in phase I had accessed VCT services although almost all indicated a willingness to undergo HIV testing in the near future. The main challenges to service delivery and utilisation included limited funding and staffing as well as limited awareness in target communities. The strategies drawn are based on the need to increase availability, accessibility, acceptability and utilisation of VCT services. / Health Studies / D. Litt. et Phil. (Health Studies)

The study explored, described and explained the current models of voluntary counselling and testing services delivery and analysed the extent to which a given VCT model had influenced uptake of VCT services in the fishing communities along the shores of Lake Victoria, in Wakiso District, with an aim of designing optimal VCT service delivery strategies. The study was therefore exploratory, descriptive and explanatory, and collected both qualitative and quantitative data in a three-phased approach. Phase I involved the Kasenyi fishing community respondents, while phases II and III involved VCT managers and VCT counsellors at the Entebbe and Kisubi Hospitals. The findings indicated that VCT services are generally available onsite at health facilities, and in the field through mobile VCT outreach or home-based VCT services provided at clients’ homes. Both client-initiated and health provider-initiated VCT services are available and services are integrated with other health services. Despite the availability of VCT, only about half of the respondents in phase I had accessed VCT services although almost all indicated a willingness to undergo HIV testing in the near future. The main challenges to service delivery and utilisation included limited funding and staffing as well as limited awareness in target communities. The strategies drawn are based on the need to increase availability, accessibility, acceptability and utilisation of VCT services. / Health Studies / D. Litt. et Phil. (Health Studies)

During the past thirty years several models for lifelong education after retirement have been developed worldwide, one of them being the University of the Third Age (U3A). This study explored the contributions of the U3A to the educational needs of older adults and evaluated the benefits they perceived from their participation in U3A by means of a literature study and an empirical investigation. The latter used a survey to explore the experiences of U3A members of two U 3As and presidents of 68 U3As in Victoria, Australia by means of two different questionnaires. As only 1.47 percent of the over-55 population of Victoria are U3A members, the survey also investigated barriers to U3A participation in general and with special reference to the male population. The findings indicated that member respondents were very satisfied with their U3A experiences which had made substantial differences in their lives. Both male and female respondents saw personal, mental, social, and physical improvement as a result of U3A participation. The majority indicated that participation had improved their intellectual development. Significant differences in the perceptions of male and female participants emerged: female members outnumbered males by three to one. Both the presidents and the members expressed some programmatic concerns, primarily obtaining tutors and classroom availability. The subject areas covered by courses presented were extensive. There was a difference in the subjects desired by males and female respondents; very few courses are offered in science and economics. Some barriers to participation identified are a lack of awareness of U3A, the stereotypical attitudinal barrier of `I am too old' and negative past educational experiences. Moreover, U3As should increase marketing endeavours. Although most U3As advertise, almost a third of the respondents indicated that they would have joined earlier if aware of U3As. A contributing factor appears to be a virtual lack of research and information provided in educational academic journals and other media about lifelong education after retirement. Based on the findings, recommendations were made for future research and for improved practice in the U3A environment as a means to enhance the quality of life for older adults. / Educational Studies / D.Ed. (Comparative Education)

Bibliography: leaves 135-143. An anthropological analysis of an industrial dispute that occurred within the East Gippsland forest industry, 1997-1998 and how the workers strove to acheive better working conditions for themselves, and to share in the wealth they had created.

During the past thirty years several models for lifelong education after retirement have been developed worldwide, one of them being the University of the Third Age (U3A). This study explored the contributions of the U3A to the educational needs of older adults and evaluated the benefits they perceived from their participation in U3A by means of a literature study and an empirical investigation. The latter used a survey to explore the experiences of U3A members of two U 3As and presidents of 68 U3As in Victoria, Australia by means of two different questionnaires. As only 1.47 percent of the over-55 population of Victoria are U3A members, the survey also investigated barriers to U3A participation in general and with special reference to the male population. The findings indicated that member respondents were very satisfied with their U3A experiences which had made substantial differences in their lives. Both male and female respondents saw personal, mental, social, and physical improvement as a result of U3A participation. The majority indicated that participation had improved their intellectual development. Significant differences in the perceptions of male and female participants emerged: female members outnumbered males by three to one. Both the presidents and the members expressed some programmatic concerns, primarily obtaining tutors and classroom availability. The subject areas covered by courses presented were extensive. There was a difference in the subjects desired by males and female respondents; very few courses are offered in science and economics. Some barriers to participation identified are a lack of awareness of U3A, the stereotypical attitudinal barrier of `I am too old' and negative past educational experiences. Moreover, U3As should increase marketing endeavours. Although most U3As advertise, almost a third of the respondents indicated that they would have joined earlier if aware of U3As. A contributing factor appears to be a virtual lack of research and information provided in educational academic journals and other media about lifelong education after retirement. Based on the findings, recommendations were made for future research and for improved practice in the U3A environment as a means to enhance the quality of life for older adults. / Educational Studies / D.Ed. (Comparative Education)