101 |
Environmental risk assessment associated with unregulated landfills in the Albert Luthuli Municipality, Mpumalanga Province, RSAMnisi, Fannie 31 August 2008 (has links)
Integrated management of municipal and hazardous waste is one of the challenges facing the new
municipalities in South Africa, especially those located in previously disadvantaged rural areas.
However, much of the research on solid and hazardous waste management in South Africa has
examined waste management problematics in urban areas, the majority of which are located within
the jurisdiction of local governments which are comparatively effective in terms of providing
adequate disposal services. By contrast, this study has examined the environmental risk
assessment associated with unregulated landfill sites in the Albert Luthuli municipality, in the
Mpumalanga province. The determination of the environmental risk was achieved by the use of
questionnaire surveys and landfill analysis forms in selected study areas.
The findings have highlighted a very high environmental risk, nearly four times and above, the
threshold limits set by the Department of Environmental Affairs and Tourism (DEAT, 2005:15) for
all of the landfill sites examined. Several exposure pathways stemming from associated
environmental impacts have also been identified for the study. The higher environmental risk
determined for the problem sites is ascribed to numerous factors, including their ill-planned
location, the sensitivity and vulnerability of the natural environment and adjacent rural settlements,
the lack of appropriate waste pre-treatment processes prior to disposal, and most significantly, the
lack of regulatory and control measures to contain the myriad of environmental problems
generated. In conclusion, it is recommended that several measures (including closure) should be
taken in order to reduce and contain the magnitude of environmental risks involved. / Environmental Sciences / M.Sc.(Environmental Sciences)
|
102 |
Remote sensing of leaf area index in Savannah grass using inversion of radiative transfer model on Landsat 8 imagery: case study Mpumalanga, South AfricaMasemola, Cecilia Ramakgahlele 03 1900 (has links)
Savannahs regulate an agro-ecosystem crucial for the production of domestic livestock, one of the main sources of income worldwide as well as in South African rural communities. Nevertheless, globally these ecosystem functions are threatened by intense human exploitation, inappropriate land use and environmental changes. Leaf area index (LAI) defined as one half the total green leaf area per unit ground surface area, is an inventory of the plant green leaves that defines the actual size of the interface between the vegetation and the atmosphere. Thus, LAI spatial data could serve as an indicator of rangeland productivity. Consequently, the accurate and rapid estimation of LAI is a key requirement for farmers and policy makers to devise sustainable management strategies for rangeland resources.
In this study, the main focus was to assess the utility and the accuracy of the PROSAILH radiative transfer model (RTM) to estimate LAI in the South African rangeland on the recently launched Landsat 8 sensor data. The Landsat 8 sensor has been a promising sensor for estimating grassland LAI as compared to its predecessors Landsat 5 to 7 sensors because of its increased radiometric resolution. For this purpose, two PROSAIL inversion methods and semi- empirical methods such as Normalized difference vegetation index (NDVI) were utilized to estimate LAI. The results showed that physically based approaches surpassed empirical approach with highest accuracy yielded by artificial neural network (ANN) inversion approach (RMSE=0.138), in contrast to the Look-Up Table (LUT) approach (RMSE=0.265). In conclusion, the results of this study proved that PROSAIL RTM approach on Landsat 8 data could be utilized to accurately estimate LAI at regional scale which could aid in rapid assessment and monitoring of the rangeland resources. / Environmental Sciences / M. Sc. (Environmental Science)
|
103 |
Remote sensing of leaf area index in Savannah grass using inversion of radiative transfer model on Landsat 8 imagery : case study Mpumalanga, South AfricaMasemola, Cecilia Ramakgahlele 03 1900 (has links)
Savannahs regulate an agro-ecosystem crucial for the production of domestic livestock, one of the main sources of income worldwide as well as in South African rural communities. Nevertheless, globally these ecosystem functions are threatened by intense human exploitation, inappropriate land use and environmental changes. Leaf area index (LAI) defined as one half the total green leaf area per unit ground surface area, is an inventory of the plant green leaves that defines the actual size of the interface between the vegetation and the atmosphere. Thus, LAI spatial data could serve as an indicator of rangeland productivity. Consequently, the accurate and rapid estimation of LAI is a key requirement for farmers and policy makers to devise sustainable management strategies for rangeland resources.
In this study, the main focus was to assess the utility and the accuracy of the PROSAILH radiative transfer model (RTM) to estimate LAI in the South African rangeland on the recently launched Landsat 8 sensor data. The Landsat 8 sensor has been a promising sensor for estimating grassland LAI as compared to its predecessors Landsat 5 to 7 sensors because of its increased radiometric resolution. For this purpose, two PROSAIL inversion methods and semi- empirical methods such as Normalized difference vegetation index (NDVI) were utilized to estimate LAI. The results showed that physically based approaches surpassed empirical approach with highest accuracy yielded by artificial neural network (ANN) inversion approach (RMSE=0.138), in contrast to the Look-Up Table (LUT) approach (RMSE=0.265). In conclusion, the results of this study proved that PROSAIL RTM approach on Landsat 8 data could be utilized to accurately estimate LAI at regional scale which could aid in rapid assessment and monitoring of the rangeland resources. / Environmental Sciences / M. Sc. (Environmental Science)
|
104 |
The perceptions of adult learners about the adult basic education and training practitioners turn-over at the Witbank Education CircuitNgobeni, Hangie Veniel 21 September 2018 (has links)
MPM / Oliver Tambo Institute of Governance and Policy Studies / Adult basic education and training in South Africa is viewed as an instrument for social, economic and political development. However, over the years, the programme faced challenges relating to recruitment and retention of suitably qualified practitioners, resulting in high staff turn-over. The study focused on the perception of adult learners about the adult basic education and training practitioners turn-over at the Witbank education circuit to gain insight into the magnitude of the problem and recommend ways and strategies to address the identified challenges. The study used a mixed method approach, incorporating elements of both quantitative and qualitative research approach. The research sample comprised adult learners, educators, Adult center managers and adult basic education and training coordinators using purposive sampling technique. Data was collected using semi-structured questionnaires and analyzed using the eight steps of Tesch in Cresswell (2009:186).
The results of the study revealed that the participants were to a large extent, aware that ABET practitioners’ turnover is a serious problem at the Witbank education circuit. The study participants revealed that lack of commitment and recognition by government to address ABET practitioner turnover decisively is impacting negatively on learners’ motivation, morale, study progress and their relationship with practitioners. This leads ABET learners to not take the ABET programme seriously, and drop of the programme due to lack of progress whereas most ABET practitioners take ABET as a waiting station for better jobs. A number of strategies can be employed to address the challenge of ABET practitioners’ turnover. Amongst others are the following: the basic working conditions of ABET practitioners should be improved. This will automatically translate into job satisfaction and long tenure, thereby counteracting current levels of high staff turnover. ABET practitioners should also be afforded relevant skills development programmes to ensure continuous professional growth and development. / NRF
|
105 |
A critical analysis of the learning culture of resilient schools within rural communities in MpumalangaDlamini, Mathokoza James 30 June 2004 (has links)
The purpose of this study was to investigate those aspects of resilient schools which are particularly beneficial for schools within rural communities in Mpumalanga. The study was done in two phases: a literature review focussing on the culture of learning of resilient schools and an empirical investigation focussing on the culture of learning of resilient schools within rural communities in Mpumalanga. Two secondary schools were selected according to criteria of resiliency. The study involved qualitative approaches, in-depth observations and interviews with key informants: principals, teachers, learners and members of the school governing bodies.
The data demonstrate that there is no distinctive aspect of the culture of learning of resilient schools because all aspects are interrelated and interdependent. This study discovered that the most effective aspect, which benefits the culture of teaching and learning in resilient schools, was the involvement of all stakeholders. / Educational Management / M.Ed.
|
106 |
From being in charge of a child-headed household to being placed in kinship foster care : the experiences and expectations of orphans previously in charge of child-headed householdsMathebula, Thandy Shirley 16 April 2014 (has links)
Placement of orphans under kinship foster care is a common occurrence in social work practice, especially around Bushbuckridge in Mpumalanga Province. Social workers are facing the challenge of an alarming increase in foster care cases due to the HIV and AIDS pandemic in the area. Thus the social workers are trapped in a situation of having to place orphans in kinship foster care, without adequate preparation nor the opportunity to explore the feelings and experiences of being in a child-headed household.
This study aimed at exploring and describing the experiences and expectations of orphans who were in charge of child-headed households, regarding their preparation for being placed in kinship foster care and their subsequent placement in such care. Research findings revealed that some orphaned children who had previously been heading a child-headed household and were now placed in kinship foster care were continuing to head the households despite the fact that an order had been issued by the children’s court for them to be under the care and guidance of kin foster parents. The non-involvement of orphaned heads of households in any decisions that affect them emerged in the findings of the study as a critical issue.
Another important finding was that some orphaned children in kinship foster care experienced the abuse of the foster care grant by their kin foster parents. The research study has made provision for conclusions and recommendations to all role-players responsible for placing child-headed households in kinship foster care in order to enhance the efficacy of kin foster care placement. / Department of Social Work / M.A. (Social Science (Mental Health))
|
107 |
A critical analysis of the learning culture of resilient schools within rural communities in MpumalangaDlamini, Mathokoza James 30 June 2004 (has links)
The purpose of this study was to investigate those aspects of resilient schools which are particularly beneficial for schools within rural communities in Mpumalanga. The study was done in two phases: a literature review focussing on the culture of learning of resilient schools and an empirical investigation focussing on the culture of learning of resilient schools within rural communities in Mpumalanga. Two secondary schools were selected according to criteria of resiliency. The study involved qualitative approaches, in-depth observations and interviews with key informants: principals, teachers, learners and members of the school governing bodies.
The data demonstrate that there is no distinctive aspect of the culture of learning of resilient schools because all aspects are interrelated and interdependent. This study discovered that the most effective aspect, which benefits the culture of teaching and learning in resilient schools, was the involvement of all stakeholders. / Educational Management / M.Ed.
|
108 |
From being in charge of a child-headed household to being placed in kinship foster care : the experiences and expectations of orphans previously in charge of child-headed householdsMathebula, Thandy Shirley 16 April 2014 (has links)
Placement of orphans under kinship foster care is a common occurrence in social work practice, especially around Bushbuckridge in Mpumalanga Province. Social workers are facing the challenge of an alarming increase in foster care cases due to the HIV and AIDS pandemic in the area. Thus the social workers are trapped in a situation of having to place orphans in kinship foster care, without adequate preparation nor the opportunity to explore the feelings and experiences of being in a child-headed household.
This study aimed at exploring and describing the experiences and expectations of orphans who were in charge of child-headed households, regarding their preparation for being placed in kinship foster care and their subsequent placement in such care. Research findings revealed that some orphaned children who had previously been heading a child-headed household and were now placed in kinship foster care were continuing to head the households despite the fact that an order had been issued by the children’s court for them to be under the care and guidance of kin foster parents. The non-involvement of orphaned heads of households in any decisions that affect them emerged in the findings of the study as a critical issue.
Another important finding was that some orphaned children in kinship foster care experienced the abuse of the foster care grant by their kin foster parents. The research study has made provision for conclusions and recommendations to all role-players responsible for placing child-headed households in kinship foster care in order to enhance the efficacy of kin foster care placement. / Department of Social Work / M.A. (Social Science (Mental Health))
|
109 |
The ability of the primary health care nurse to diagnose Tuberculosis in childrenVellema, Susara Catharina (Riensie) 30 June 2005 (has links)
Tuberculosis (TB) has re-emerged as a major worldwide public health challenge in the last decade with an increasing incidence amongst children. The diagnosis of TB in children is difficult as the presentation is not always classical and available diagnostic modalities are imperfect. Diagnosis is, especially complex in developing countries where resources and access to sophisticated diagnostic facilities are limited. Thus practical score charts combining a number of complementary clinical characteristics with affordable special investigations have been developed to aid diagnosis.
The new South African primary health care (PHC) nurse-driven system demands that first line nurses be equipped to suspect, diagnose, confirm the diagnosis and treat children with TB. Very little is known about the ability of PHC nurses to diagnose TB in children. In Mpumalanga province relatively low rates of notified paediatric TB prompted an investigation to determine the ability of local PHC nurses to diagnose TB in children and explore whether the PHC setting allowed this. Within method triangulation was used in this quantitative descriptive study by combining a self-completed knowledge survey with clinic visits to audit records and assess access to diagnostic aids and tests.
Important deficiencies in knowledge and limited access to certain diagnostic modalities found in this study must be addressed if appropriate management of TB in children is to be assured. / Health Studies / M. A. (Public Health)
|
110 |
Kinderversorgers se emosionele belewenisse en hantering van kontakgrensversteurings : `n beskrywende studie / The child care worker's emotional experience and management of contact boundary disturbances : a descriptive studyVan Wyngaard, Debro 11 1900 (has links)
Text in Afrikaans / Children in children’s homes often make use of specific behaviour - defined as contact boundary disturbances in Gestalt theory - as a result of their intense emotional needs, but also to protect themselves or to be assertive in their current environment.
This qualitative, applied study aimed to determine and describe the way the child care workers of a rural child and youth care centre manage and experience the contact boundary disturbances of children in the children’s home. Semi-structured interviews were conducted with eight child care workers.
In conducting the study, the researcher found that the child care workers had inadequate knowledge and insight regarding contact boundary disturbances and how to handle it. It was concluded that the management of children’s homes must ensure that training and support are provided to child care workers so that their needs are addressed in order to prevent burnout. Recommendations that will be valuable with respect to the handling skills and emotional experiences of child care workers were made. / Social Work / M. Diac. (Spelterapie)
|
Page generated in 0.1199 seconds