Testing the application of coastal altimetry in two South-Eastern African bights: the relationship between mesoscale features and chlorophyll-a, cyclonic eddies in the Indian Ocean
- Authors: Ziegler, Lisa
- Date: 2018
- Subjects: Oceanography -- Remote sensing -- Indian Ocean
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/15225 , vital:28188
- Description: Enhanced coastal altimetry, adaptive Leading-Edge Subwaveform(ALES), was used to study wo well known eddies along the southeastern African coast, namely the Delagoa Bight Lee Eddy and the Durban Lee Eddy. I address a two part problem. Firstly, how well does the application of coastal altimetry techniques behave in the coastal region? Secondly, is there a relationship between the eddies’ presence and chlorophyll-a (chl-a). Sea level anomalies (SLA) were computed from the re-tracked ALES data of two satellite missions — Envisat (used for Delagoa Bight eddy) and Jason -2 (for the Durban eddy) with geophysical corrections removed. These datasets were compared with the original satellite, 1 Hz RADS, AND AVISO gridded data. Two regions were selected to see if there was a biophysical link. A centre region of the eddy and an outside region of the eddy were taken. Results indicate that coastal altimetrywas successful in delimiting both features. ALES was less noisey and able to recover more data that were missed by the 1 Hz RADS dataset. Hovmöller plots showed the Delagoa Bight eddy to be more of a transient feature than semi-permanent, as had previously been suggested. Results from the linear model indicate a negative correlation between SLA and chl-a. This influence could be through facilitation of chl-a in the bight or just retaining chla. This is hard to elucidate without in situ data. These results show a promising indication that coastal altimetry will be a useful and reliable product to further biophysical coupling research along the coast.
- Full Text:
- Date Issued: 2018
- Authors: Ziegler, Lisa
- Date: 2018
- Subjects: Oceanography -- Remote sensing -- Indian Ocean
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/15225 , vital:28188
- Description: Enhanced coastal altimetry, adaptive Leading-Edge Subwaveform(ALES), was used to study wo well known eddies along the southeastern African coast, namely the Delagoa Bight Lee Eddy and the Durban Lee Eddy. I address a two part problem. Firstly, how well does the application of coastal altimetry techniques behave in the coastal region? Secondly, is there a relationship between the eddies’ presence and chlorophyll-a (chl-a). Sea level anomalies (SLA) were computed from the re-tracked ALES data of two satellite missions — Envisat (used for Delagoa Bight eddy) and Jason -2 (for the Durban eddy) with geophysical corrections removed. These datasets were compared with the original satellite, 1 Hz RADS, AND AVISO gridded data. Two regions were selected to see if there was a biophysical link. A centre region of the eddy and an outside region of the eddy were taken. Results indicate that coastal altimetrywas successful in delimiting both features. ALES was less noisey and able to recover more data that were missed by the 1 Hz RADS dataset. Hovmöller plots showed the Delagoa Bight eddy to be more of a transient feature than semi-permanent, as had previously been suggested. Results from the linear model indicate a negative correlation between SLA and chl-a. This influence could be through facilitation of chl-a in the bight or just retaining chla. This is hard to elucidate without in situ data. These results show a promising indication that coastal altimetry will be a useful and reliable product to further biophysical coupling research along the coast.
- Full Text:
- Date Issued: 2018
Assessing cultural readiness for lean implementation at an automotive component manufacturer in Port Elizabeth
- Levendal, Arend Randolph Dimitre
- Authors: Levendal, Arend Randolph Dimitre
- Date: 2017
- Subjects: Organizational effectiveness Organizational change , Corporate culture Motor industry -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/18145 , vital:28580
- Description: Automotive component manufacturers face significant competitive challenges in the global market and are constantly looking for means to improve their competitive advantage. Organisations then often acquire lean tools as an attractive option to achieve this. Research has however highlighted that the underlying “Lean Culture” is what is really necessary for organisations to achieve and maintain a competitive advantage. According to Rother (2010) lean implementation can be seen as a project or an initiation of an on- going development process where learning is taking place. This implementation implies a change in organisational culture from its existing state to a state where it reflects a lean culture. The literature review into Lean highlights the importance of establishing a Lean Culture. This research relied on an existing Lean Culture Causal Framework to assess cultural readiness for lean implementation at an automotive component manufacturer in Port Elizabeth (Company X). This was done utilising an empirical study which relied on an existing questionnaire associated with the said Lean Culture Causal Frame work. This Framework focuses on four broad categories of leadership actions; Awareness, Engagement, Consistency and Accountability.
- Full Text:
- Date Issued: 2017
- Authors: Levendal, Arend Randolph Dimitre
- Date: 2017
- Subjects: Organizational effectiveness Organizational change , Corporate culture Motor industry -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/18145 , vital:28580
- Description: Automotive component manufacturers face significant competitive challenges in the global market and are constantly looking for means to improve their competitive advantage. Organisations then often acquire lean tools as an attractive option to achieve this. Research has however highlighted that the underlying “Lean Culture” is what is really necessary for organisations to achieve and maintain a competitive advantage. According to Rother (2010) lean implementation can be seen as a project or an initiation of an on- going development process where learning is taking place. This implementation implies a change in organisational culture from its existing state to a state where it reflects a lean culture. The literature review into Lean highlights the importance of establishing a Lean Culture. This research relied on an existing Lean Culture Causal Framework to assess cultural readiness for lean implementation at an automotive component manufacturer in Port Elizabeth (Company X). This was done utilising an empirical study which relied on an existing questionnaire associated with the said Lean Culture Causal Frame work. This Framework focuses on four broad categories of leadership actions; Awareness, Engagement, Consistency and Accountability.
- Full Text:
- Date Issued: 2017
Nurse managers' perceptions of the Eastern Cape department of health employee assistance programme
- Authors: Stenge, Nyameka
- Subjects: Employee assistance programs -- South Africa -- Eastern Cape , Nurse administrators -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10088 , http://hdl.handle.net/10948/d1021203
- Description: Organizations assist employees to deal effectively with demanding work and the work environment, including their personal problems, through an Employee Assistance Programme (EAP). The essence of the EAP is the application of knowledge about behaviour and behavioural health to make accurate assessments, followed by appropriate action to improve the productivity and healthy functioning of the employees. According to the report from the Employee Wellness Directorate of the Eastern Cape, the Employee Assistance Programme Practitioners saw 576 employees in 2010. These statistics only represent a few districts in the Eastern Cape as some districts do not have Employee Assistance Practitioners offering employee assistance, hence this number could be higher. In some instances employees do self-referral, which may increase the number without the managers knowing who is utilizing the EAP. This makes it difficult for the managers to monitor such employees and the effectiveness of the intervention rendered. Managers refer employees but do not have control over whether employees made use of the EAP and on the progress in sessions as they do not always receive the feedback. The Employee Assistance counsellor may receive a written referral from the nursing manager and then consults the referred employee in private. The employee gives consent and then the EAP counsellor addresses the problem at hand. If it is a complex case needing expert intervention arrangements are made. If the intervention requires follow up sessions, the EAP counsellor makes the necessary arrangements through the referring manager until the problem is resolved. The EAP counsellor monitors the employee and asks the manager to support the employee without divulging details of the problem that was being addressed. However, the Nursing Managers do not know how effective the programme is and whether the employees benefit from the use. The above-mentioned problem led the researcher to ask the following questions: • What are the perceptions that Nurse Managers in the Department of Health in the Eastern Cape Province have of the effectiveness of the Employee Assistance Programme? • How can Nurse Managers optimize employees’ use of the EAP? The goal of this study was to identify the perceptions of Nurse Managers of the Employee Assistance Programme in order to determine how the programme’s use can be optimized. The researcher used a qualitative, explorative, descriptive and contextual design. The research population was selected purposively and included the Nursing Managers in the Department of Health in the Chris Hani District, Eastern Cape, who have referred employees to the Employee Assistance Programme. Semi-structured interviews were used during the data gathering process. Interviews were conducted at a venue convenient to the participants. Open-ended questions were asked to enable participants to express their perceptions on the topic. The researcher also used observation and field-notes to ensure that the data gathering provided rich information. The data was analysed using Tesch’s method of data analysis. Trustworthiness was ensured by using Guba’s model of trustworthiness. The ethical strategies of informed consent, confidentiality and anonymity, avoidance of harm and voluntary participation were ensured. Two themes emerged from the data analysis. Theme one showed that the participants had contrasting perceptions regarding the effectiveness of the current Employee Assistance Programme. Some felt that they have benefitted from the programme while others felt differently. Theme two described the participants’ views elated to improving the utilization of the EAP. Positive and negative factors that impacted on the implementation of EAP have been identified. Results show that both the employer and the employees could benefit if EAP is well implemented. Decentralization of EAP could be very cost effective and could save the employer thousands of rands because resources would be utilized better.
- Full Text:
- Authors: Stenge, Nyameka
- Subjects: Employee assistance programs -- South Africa -- Eastern Cape , Nurse administrators -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10088 , http://hdl.handle.net/10948/d1021203
- Description: Organizations assist employees to deal effectively with demanding work and the work environment, including their personal problems, through an Employee Assistance Programme (EAP). The essence of the EAP is the application of knowledge about behaviour and behavioural health to make accurate assessments, followed by appropriate action to improve the productivity and healthy functioning of the employees. According to the report from the Employee Wellness Directorate of the Eastern Cape, the Employee Assistance Programme Practitioners saw 576 employees in 2010. These statistics only represent a few districts in the Eastern Cape as some districts do not have Employee Assistance Practitioners offering employee assistance, hence this number could be higher. In some instances employees do self-referral, which may increase the number without the managers knowing who is utilizing the EAP. This makes it difficult for the managers to monitor such employees and the effectiveness of the intervention rendered. Managers refer employees but do not have control over whether employees made use of the EAP and on the progress in sessions as they do not always receive the feedback. The Employee Assistance counsellor may receive a written referral from the nursing manager and then consults the referred employee in private. The employee gives consent and then the EAP counsellor addresses the problem at hand. If it is a complex case needing expert intervention arrangements are made. If the intervention requires follow up sessions, the EAP counsellor makes the necessary arrangements through the referring manager until the problem is resolved. The EAP counsellor monitors the employee and asks the manager to support the employee without divulging details of the problem that was being addressed. However, the Nursing Managers do not know how effective the programme is and whether the employees benefit from the use. The above-mentioned problem led the researcher to ask the following questions: • What are the perceptions that Nurse Managers in the Department of Health in the Eastern Cape Province have of the effectiveness of the Employee Assistance Programme? • How can Nurse Managers optimize employees’ use of the EAP? The goal of this study was to identify the perceptions of Nurse Managers of the Employee Assistance Programme in order to determine how the programme’s use can be optimized. The researcher used a qualitative, explorative, descriptive and contextual design. The research population was selected purposively and included the Nursing Managers in the Department of Health in the Chris Hani District, Eastern Cape, who have referred employees to the Employee Assistance Programme. Semi-structured interviews were used during the data gathering process. Interviews were conducted at a venue convenient to the participants. Open-ended questions were asked to enable participants to express their perceptions on the topic. The researcher also used observation and field-notes to ensure that the data gathering provided rich information. The data was analysed using Tesch’s method of data analysis. Trustworthiness was ensured by using Guba’s model of trustworthiness. The ethical strategies of informed consent, confidentiality and anonymity, avoidance of harm and voluntary participation were ensured. Two themes emerged from the data analysis. Theme one showed that the participants had contrasting perceptions regarding the effectiveness of the current Employee Assistance Programme. Some felt that they have benefitted from the programme while others felt differently. Theme two described the participants’ views elated to improving the utilization of the EAP. Positive and negative factors that impacted on the implementation of EAP have been identified. Results show that both the employer and the employees could benefit if EAP is well implemented. Decentralization of EAP could be very cost effective and could save the employer thousands of rands because resources would be utilized better.
- Full Text:
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