• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 48
  • 39
  • 1
  • 1
  • Tagged with
  • 89
  • 68
  • 65
  • 64
  • 64
  • 51
  • 29
  • 27
  • 27
  • 16
  • 15
  • 13
  • 13
  • 13
  • 12
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Guidelines for the training of participants in the clean community system

Caws, Guy Cubitt 11 1900 (has links)
The Clean Community System (CCS) is a method of waste management education widely used in the USA by the Keep America Beautiful organization. The CCS has been applied by the eThekwini Municipality since 1981. The training of staff and volunteers in the CCS has to date been limited and based on the American model. The aim of this study is to provide guidelines for the training of participants in the Clean Community System in the South African context. This will be achieved by a study of two community groups that have successfully applied the CCS. The results of the research will be compared with the principles of the CCS and relevant literature. The conclusions drawn from the study will provide guidelines for the training of participants in the CCS. / Further Teacher Education / M. Ed. (Didactics)
82

Quantification of PAHs and PCBs in eThekwini aquatic systems, using chemical and biological analysis / Natasha Lee Vogt

Vogt, Natasha Lee January 2014 (has links)
Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) are common contaminants of sediment, soils and biological tissues. These compounds pose a significant risk to biological and ecosystem health and functioning due to these compounds being mutagenic, carcinogenic and are known to disrupt the endocrine system. The bioaccumulation and biomagnification potential that these compounds possess mean that they are capable of affecting the entire food chain and are not limited to the organisms that are directly in contact with the compounds Even though there has been an increase in the attention on identifying the presence and impacts that these compounds may have in South Africa, the level of attention is lower than what it is in other countries around the world. Although South Africa has guidelines in place for other pollutants, such as metals, there are no such guidelines in place to monitor PAHs and PCBs.. Industries are known to release both PAHs and PCBs, mainly from incomplete burning processes and the release of oils and fuels in the case of PAHs, and from heat transfer fluids in the case of PCBs. Durban Bay and surrounding areas of eThekwini, KwaZulu-Natal are highly industrialised with many aquatic systems, in which these contaminants are likely to deposit. The aim of this research was to determine the concentrations of these compounds by means of chemical analysis and additionally biological analysis, using the H4IIE-luc bioassay and compare these levels to international guideline levels. It was found that the concentrations of the 23 analysed PAHs were 6.5–3 235.6 ng.g-1 and the concentration of the PCBs analysed were 0–113.83 ng.g-1. Many sites were found to be in exceedance of the guideline limits, particularly in the harbour. Toxic equivalency factors (TEF) were used to gauge the toxic equivalency (TEQ) of the PAHs and PCBs that were found. The TEQs were generally low, and were below any guideline levels. The assay revealed the extract containing the PCBs had a bioassay equivalence (BEQ) of 0–93.54 pgTCDDeq. g-1 and the extract containing the PAHs of 0–776.08 pgTCDD-eq.g-1. With a proportion of the sites exceeding guideline limits. The BEQ results were two to three orders of magnitude greater than the TEQs calculated from the concentrations determined by the instrumental analysis, however, followed a similar trend. Additionally chemical analysis was not performed on a full suite of compounds that are able to elicit a response from the cells, which could be a reason why the BEQ and TEQ did not follow a similar trend among some of the samples. It would have been more beneficial to have performed chemical analysis on the 16 priority PAHs (as determined by the United States Environmental Protection Agency), the dioxin-like PCBs and polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDFs) which are all capable of eliciting a response from the cells and have TEF values. The areas that were most affected by contamination of these compounds was the harbour and surrounding canals, and there was point source contamination along the Umhlatuzana, Umbilo, and Amanzimnyana Rivers. All dl-PCBs should be chemically analysed at all the sample areas, as these cause adverse effects to biota. In addition to this, biota should be sampled to determine concentrations of the compounds to determine bioavailability and the degree of bioaccumulation in the food chain. Utilising biomarkers it would be possible to determine stresses of fish. / MSc (Environmental Sciences), North-West University, Potchefstroom Campus, 2014
83

Quantification of PAHs and PCBs in eThekwini aquatic systems, using chemical and biological analysis / Natasha Lee Vogt

Vogt, Natasha Lee January 2014 (has links)
Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) are common contaminants of sediment, soils and biological tissues. These compounds pose a significant risk to biological and ecosystem health and functioning due to these compounds being mutagenic, carcinogenic and are known to disrupt the endocrine system. The bioaccumulation and biomagnification potential that these compounds possess mean that they are capable of affecting the entire food chain and are not limited to the organisms that are directly in contact with the compounds Even though there has been an increase in the attention on identifying the presence and impacts that these compounds may have in South Africa, the level of attention is lower than what it is in other countries around the world. Although South Africa has guidelines in place for other pollutants, such as metals, there are no such guidelines in place to monitor PAHs and PCBs.. Industries are known to release both PAHs and PCBs, mainly from incomplete burning processes and the release of oils and fuels in the case of PAHs, and from heat transfer fluids in the case of PCBs. Durban Bay and surrounding areas of eThekwini, KwaZulu-Natal are highly industrialised with many aquatic systems, in which these contaminants are likely to deposit. The aim of this research was to determine the concentrations of these compounds by means of chemical analysis and additionally biological analysis, using the H4IIE-luc bioassay and compare these levels to international guideline levels. It was found that the concentrations of the 23 analysed PAHs were 6.5–3 235.6 ng.g-1 and the concentration of the PCBs analysed were 0–113.83 ng.g-1. Many sites were found to be in exceedance of the guideline limits, particularly in the harbour. Toxic equivalency factors (TEF) were used to gauge the toxic equivalency (TEQ) of the PAHs and PCBs that were found. The TEQs were generally low, and were below any guideline levels. The assay revealed the extract containing the PCBs had a bioassay equivalence (BEQ) of 0–93.54 pgTCDDeq. g-1 and the extract containing the PAHs of 0–776.08 pgTCDD-eq.g-1. With a proportion of the sites exceeding guideline limits. The BEQ results were two to three orders of magnitude greater than the TEQs calculated from the concentrations determined by the instrumental analysis, however, followed a similar trend. Additionally chemical analysis was not performed on a full suite of compounds that are able to elicit a response from the cells, which could be a reason why the BEQ and TEQ did not follow a similar trend among some of the samples. It would have been more beneficial to have performed chemical analysis on the 16 priority PAHs (as determined by the United States Environmental Protection Agency), the dioxin-like PCBs and polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDFs) which are all capable of eliciting a response from the cells and have TEF values. The areas that were most affected by contamination of these compounds was the harbour and surrounding canals, and there was point source contamination along the Umhlatuzana, Umbilo, and Amanzimnyana Rivers. All dl-PCBs should be chemically analysed at all the sample areas, as these cause adverse effects to biota. In addition to this, biota should be sampled to determine concentrations of the compounds to determine bioavailability and the degree of bioaccumulation in the food chain. Utilising biomarkers it would be possible to determine stresses of fish. / MSc (Environmental Sciences), North-West University, Potchefstroom Campus, 2014
84

A study of causes of delay and cost overrun in office construction projects in the eThekwini Municipal Area, South Africa

Adugna, Nafkote Tesfahun January 2015 (has links)
Submitted in fulfillment of the academic requirements for the degree of Master of Technology in Construction Management, Durban University of Technology, Durban, South Africa, 2015. / On-time completion and conformity with assigned cost of every project are the most important factors in the success of project plans. Cost overruns and time overrun (delays) have been critical problems of many projects around the world in general and in South Africa in particular. The main objectives of this research are to assess the dominant causes of cost and time overruns, identifying possible and practical measures that can minimize overruns in office building construction projects around eThekwini Municipal area of Kwazulu-Natal. These objectives are achieved through the implementation of the research methodologies that are mainly literature review and questionnaire survey conducted to identify and evaluate the significant factors contributing to delay and cost overruns within the projects of interest. A review of literature identified eighty-five variables for delay, grouped in nine major categories and nine variables for cost overruns ranked in their order of importance in three sets based on the responses from the professionals working for the client, consultants and contractors. The agreement among the sets of rankings for delay and cost overruns has also been tested using statistical methods. The result indicates that there is strong agreement on ranking the importance of the individual variables of delay and cost overruns between parties. From each of the three sets of rankings, the twenty most important variables of delay and the three most important variables of cost overrun are identified as critical. Based on overall results, the top five most important causes are contractor’s cash flow problems, delay in progress payments by the client, poor site supervision and management by contractor, inefficient quality control by the contractor during construction leading to rework due to errors, and contractor’s difficulties in financing the project. Out of the 20 most important delay causing variables, three are found to be common between all parties. These are delay in progress payments by the client, delay in delivery and late ordering of material, and insufficient skill of labour. Furthermore, the study reveals that all stakeholders of construction parties are deeply involved in contributing to the causes of the problems. Thus, in order to eliminate or minimize cost and time extension of office construction projects in the eThekwini Municipal area, a joint effort based on teamwork is essential through effective project planning, controlling and monitoring which boils down to putting in place best practice construction project management.
85

Investigation on road infrastructure, traffic and safety within the Port of Durban

Kunene, Oscar M. January 2013 (has links)
Submitted in fulfillment for the degree of Magister Technologiae: Engineering: Civil, Durban University of Technology, Durban, South Africa, 2013. / An increase in road traffic, poor road conditions and high numbers of road accidents are major challenges at the Port of Durban. Roads are considered as the most important transport mode at the Port of Durban. Road transport has taken almost 80% of the import and export cargo while railway transport is left with approximately 20%. It is estimated that 75 million lives in the world will be lost and 750 million people injured in road accidents in the first half of the 21th century. The Port of Durban is an important vehicle for facilitating economic growth of local, regional and national industries. For the Port to maintain global competitiveness with the current trend of globalization, it has to ensure that roads are well maintained, safe and have a smooth traffic flow with no delays. This study provides an overview of the road infrastructure within the Port of Durban in relation to road condition, safety, law enforcement and traffic. Existing and ongoing studies conducted in South Africa and abroad form part of the literature review. This study identifies factors that are affecting the condition of road infrastructure such as growth of container cargo, an increase in the dimension and weight of trucks, transport deregulation, port layout and handling equipments. Deregulation of road transport over the past years has resulted in an 80:20 split between road and rail transport putting more pressure on roads. Cost and time are the major deciding factors in the freight industry. Most customers prefer to use road transport due to the lower cost and reduced time compared to rail transport. There are eight major roads within the Port that connect the South, West and North of eThekwini Municipality namely Bayhead, Quayside, Maydon, Rick Turner, Wisely, South Coast, Bluff and Iran Roads. Asset verification and assessment of the condition of the existing eight major roads found that Quayside Road is in a better condition compared to the other roads. Maydon and South Coast Roads are low rated roads which are in a poor condition. Identification and assessment of the condition of 210 000m² of asphalt paved areas which included minor roads within the Port of Durban was also conducted. Most paved areas and roads fall under D (fair) category which is reasonable but maintenance work may be required within six months. Comparison between the condition of the eight major roads within the Port and outside the Port was investigated. The findings indicate that sections of roads outside the Port are in a better condition than sections within the Port. Traffic counts were conducted in order to determine the utilization of the existing eight major roads. Bayhead and South Coast Road are highly utilized roads. Road accident reports and death reports were analyzed on these roads. Most of the road accidents take place on South Coast Road. A questionnaire survey was conducted, targeting road users who travel on these roads within the Port. Feedback was obtained on the status of road conditions, safety and traffic within the Port of Durban. Findings of this survey revealed that most of the respondents don’t know where to report road defect/s within the Port. Approximately 37.5% of the road users felt not safe to drive on roads within the Port especially on South Coast Road. A high percentage of people (93%) witnessed accidents on these roads. Traffic signals within the Port are maintained by eThekwini Municipality and are very often non-functional. When road signs need to be repaired or replaced, it takes longer than expected. Also, there are limited parking areas around the Port resulting in trucks parking closer to the premises while waiting to collect or deliver cargo. This causes major traffic congestion, for example, on Maydon Road where most trucks park on the side of the road. Recommendations include assessment guidelines that could improve road condition, safety and traffic flow. Areas to be improved with regard to road infrastructure are also highlighted. / M
86

The impact of amalgamation on human resources practice in eThekwini municipality

Madondo, Siphiwe E. January 2008 (has links)
Thesis (M.B.A.: Business Studies Unit)-Durban University of Technology, 2008. xi, 96 leaves / The amalgamation of municipalities came into effect as a legislative requirement brought about a number of challenges for the local government. One such major challenge relates to the impact that these amalgamations will have on human resource practices of the various municipalities. Literature study reveals that during any merger or amalgamation, less attention is paid to the human element of a merger until the merger is almost complete. This lack of attention impacts negatively on the merger results. Like other municipalities, Ethekwini Municipality is a product of this legislative requirement. It was formed as a result of the amalgamation of different municipal entities that had different human resource practices. The problem facing eThekwini Municipality is the misalignment of human resources policies and their effect on the working environment. This study looks at the impact of this amalgamation on the human resources practices of the eThekwini Municipality. The sub-objectives of the study are: to ascertain employees’ perceptions of amalgamation; to determine whether employees believe that the human resources’ matters are handled in a manner that will bring about stability and equity in the workplace; and to establish whether different perceptions exist between employees of the former Durban Metro Central and those of the erstwhile entities. / M
87

The impact of amalgamation on human resources practice in eThekwini municipality

Madondo, Siphiwe E. January 2008 (has links)
Thesis (M.B.A.: Business Studies Unit)-Durban University of Technology, 2008. xi, 96 leaves / The amalgamation of municipalities came into effect as a legislative requirement brought about a number of challenges for the local government. One such major challenge relates to the impact that these amalgamations will have on human resource practices of the various municipalities. Literature study reveals that during any merger or amalgamation, less attention is paid to the human element of a merger until the merger is almost complete. This lack of attention impacts negatively on the merger results. Like other municipalities, Ethekwini Municipality is a product of this legislative requirement. It was formed as a result of the amalgamation of different municipal entities that had different human resource practices. The problem facing eThekwini Municipality is the misalignment of human resources policies and their effect on the working environment. This study looks at the impact of this amalgamation on the human resources practices of the eThekwini Municipality. The sub-objectives of the study are: to ascertain employees’ perceptions of amalgamation; to determine whether employees believe that the human resources’ matters are handled in a manner that will bring about stability and equity in the workplace; and to establish whether different perceptions exist between employees of the former Durban Metro Central and those of the erstwhile entities.
88

The satisfaction of HIV/AIDS counsellors in the eThekwini metropolitan area with regard to their counsellor training

Hendricks, Mimona 29 February 2008 (has links)
Twenty four eThekwini HIV/AIDS counsellors based in four different work settings and who received training from five different training providers, shared their HIV/AIDS counsellor training experiences. The qualitative, phenomenological study utilized a multi-methods approach. The purpose of HIV/AIDS counselling lacks uniformity. Participants reflected upon their distinction between training satisfaction and perceived competency to render HIV/AIDS counselling after training. Although they were satisfied and empowered by the useful information gained, many felt inadequate to counsel an HIV positive person on completion of training. Inadequate practical learning opportunities were evident. Participants identified the need for a more balanced theoretical and practical training program incorporating experiential and didactic training methods. Entrance criteria to HIV/AIDS counsellor training courses and eventual assessment procedures in the study were diverse. Participants suggested improvements for training methods and course content and proposed a tiered training model that will result in standardized and certified training modules. / Social Work / MA(SS) (Social Work)
89

The satisfaction of HIV/AIDS counsellors in the eThekwini metropolitan area with regard to their counsellor training

Hendricks, Mimona 29 February 2008 (has links)
Twenty four eThekwini HIV/AIDS counsellors based in four different work settings and who received training from five different training providers, shared their HIV/AIDS counsellor training experiences. The qualitative, phenomenological study utilized a multi-methods approach. The purpose of HIV/AIDS counselling lacks uniformity. Participants reflected upon their distinction between training satisfaction and perceived competency to render HIV/AIDS counselling after training. Although they were satisfied and empowered by the useful information gained, many felt inadequate to counsel an HIV positive person on completion of training. Inadequate practical learning opportunities were evident. Participants identified the need for a more balanced theoretical and practical training program incorporating experiential and didactic training methods. Entrance criteria to HIV/AIDS counsellor training courses and eventual assessment procedures in the study were diverse. Participants suggested improvements for training methods and course content and proposed a tiered training model that will result in standardized and certified training modules. / Social Work / MA(SS) (Social Work)

Page generated in 0.0551 seconds