Exploring attitudes towards banner advertising on the world wide web
- Authors: Krige, Philip
- Date: 2008
- Subjects: Internet advertising -- Banner , Internet users -- Banner , Internet marketing
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8705 , http://hdl.handle.net/10948/997 , Internet advertising -- Banner , Internet users -- Banner , Internet marketing
- Description: The purpose of the study was to assess the effectiveness of banner advertising on the World Wide Web, as well as to explore and analyse the attitudes and behaviours of internet users towards banner advertising. The research objective was to determine, why people do not click on banners and to find ways in which advertisers can make banner advertisements appeal to consumers more effectively. Outcomes of the research suggested which features advertisers should avoid when developing clickable banners. An extensive literature review was carried out in order to highlight important aspects of historic research. The analysis conducted on this topic indicated that a gap exists in the area of public attitudes towards clickable banner advertising and the reasons why people avoid clicking on banners. To address the above questions, peoples’ attitudes towards banner and other Internet advertising were investigated through focus group interviews and surveys. The findings suggest that the main reason for the ignorance surrounding clickable banners was the low involvement between the product or service being advertised and the viewer’s interests. Other reasons included the high annoyance level of banner advertising and the threat of viruses that some banners may pose. Conclusions of the research recommend narrow targeting and personalisation of banner advertisements, constant rotations and replacements of banners to avoid burnouts as well as trustful and original appeal and content. Other important findings included: • The majority of people are indifferent towards banners, • People with less than three years of Internet experience tend to click more than people with more than three years of Internet experience, • Females showed more “clickable behaviour” than males, • People are more likely to click on banners which present interesting information, are bright and animated or promote catchy phrases for the surfer, • People prefer to see banners located on the top of the page or on the right side of the page, • Pop-ups are the most noticeable and are possibly the route cause of what triggers people to become annoyed or dislike banner ads, Findings of this research have high social value. If advertisers would take into account the results of the current study, they would be able to create more effective banners, which could effectively be redirected to the appropriate target market. This will enable them to cut their costs. Furthermore, online users would enjoy a more polite and friendly online environment, where their interests will be taken into account, which would diminish the current gap between customers and advertisers.
- Full Text:
- Date Issued: 2008
- Authors: Krige, Philip
- Date: 2008
- Subjects: Internet advertising -- Banner , Internet users -- Banner , Internet marketing
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8705 , http://hdl.handle.net/10948/997 , Internet advertising -- Banner , Internet users -- Banner , Internet marketing
- Description: The purpose of the study was to assess the effectiveness of banner advertising on the World Wide Web, as well as to explore and analyse the attitudes and behaviours of internet users towards banner advertising. The research objective was to determine, why people do not click on banners and to find ways in which advertisers can make banner advertisements appeal to consumers more effectively. Outcomes of the research suggested which features advertisers should avoid when developing clickable banners. An extensive literature review was carried out in order to highlight important aspects of historic research. The analysis conducted on this topic indicated that a gap exists in the area of public attitudes towards clickable banner advertising and the reasons why people avoid clicking on banners. To address the above questions, peoples’ attitudes towards banner and other Internet advertising were investigated through focus group interviews and surveys. The findings suggest that the main reason for the ignorance surrounding clickable banners was the low involvement between the product or service being advertised and the viewer’s interests. Other reasons included the high annoyance level of banner advertising and the threat of viruses that some banners may pose. Conclusions of the research recommend narrow targeting and personalisation of banner advertisements, constant rotations and replacements of banners to avoid burnouts as well as trustful and original appeal and content. Other important findings included: • The majority of people are indifferent towards banners, • People with less than three years of Internet experience tend to click more than people with more than three years of Internet experience, • Females showed more “clickable behaviour” than males, • People are more likely to click on banners which present interesting information, are bright and animated or promote catchy phrases for the surfer, • People prefer to see banners located on the top of the page or on the right side of the page, • Pop-ups are the most noticeable and are possibly the route cause of what triggers people to become annoyed or dislike banner ads, Findings of this research have high social value. If advertisers would take into account the results of the current study, they would be able to create more effective banners, which could effectively be redirected to the appropriate target market. This will enable them to cut their costs. Furthermore, online users would enjoy a more polite and friendly online environment, where their interests will be taken into account, which would diminish the current gap between customers and advertisers.
- Full Text:
- Date Issued: 2008
Faktore wat die oorlewing van volstruiskuikens (Struthio Camelus) verhoog
- Authors: Janse Van Vuuren, Maryke
- Date: 2008
- Subjects: Ostrich farming -- South Africa , Ostriches -- Breeding -- South Africa
- Language: Afrikaans
- Type: Thesis , Masters , MTech
- Identifier: vital:10588 , http://hdl.handle.net/10948/848 , Ostrich farming -- South Africa , Ostriches -- Breeding -- South Africa
- Description: Hierdie verhandeling is ‘n samestelling van verskeie studies, elk opgeskryf in die formaat en styl soos vereis deur die Suid-Afrikaanse Vereeniging vir Diereproduksie (South African Society of Animal Science). Hoofstuk 1 is ‘n literatuurstudie bestaande uit ‘n algemene inleiding wat agtergrond oor die studie verskaf en sluit die probleemstelling in, naamlik die swak oorlewing van volstruiskuikens wat onder kunsmatige toestande grootgemaak word. Hoofstukke 2, 3, 4 en 5 bestaan uit die eerste vier studies, waartydens sekere bestuurs-aspekte, wat moontlik oorlewing van volstruiskuikens kan verbeter (nl: populasiedigtheid, tipe vloer-oppervlak, die aanwending van broeipare en die aanwending van peetouers), ondersoek is. Hoofstukke 6, 7, 8 & 9 handel oor studies wat gerig is om voeding meer aanloklik te maak vir volstruiskuikens teneinde voedselinname te stimuleer en sodoende produksie en oorlewing te verbeter (nl: verskaffing van groenvoer, geur van voer, kleur van voer en beligting van voer). Die laaste hoofstuk bestaan uit ‘n algemene gevolgtrekking en aanbevelings. Alhoewel daar gepoog is om herhaling in hoofstukke te beperk, was dit onmoontlik om herhaling van sekere gedeeltes van hoofstukke te voorkom.
- Full Text:
- Date Issued: 2008
- Authors: Janse Van Vuuren, Maryke
- Date: 2008
- Subjects: Ostrich farming -- South Africa , Ostriches -- Breeding -- South Africa
- Language: Afrikaans
- Type: Thesis , Masters , MTech
- Identifier: vital:10588 , http://hdl.handle.net/10948/848 , Ostrich farming -- South Africa , Ostriches -- Breeding -- South Africa
- Description: Hierdie verhandeling is ‘n samestelling van verskeie studies, elk opgeskryf in die formaat en styl soos vereis deur die Suid-Afrikaanse Vereeniging vir Diereproduksie (South African Society of Animal Science). Hoofstuk 1 is ‘n literatuurstudie bestaande uit ‘n algemene inleiding wat agtergrond oor die studie verskaf en sluit die probleemstelling in, naamlik die swak oorlewing van volstruiskuikens wat onder kunsmatige toestande grootgemaak word. Hoofstukke 2, 3, 4 en 5 bestaan uit die eerste vier studies, waartydens sekere bestuurs-aspekte, wat moontlik oorlewing van volstruiskuikens kan verbeter (nl: populasiedigtheid, tipe vloer-oppervlak, die aanwending van broeipare en die aanwending van peetouers), ondersoek is. Hoofstukke 6, 7, 8 & 9 handel oor studies wat gerig is om voeding meer aanloklik te maak vir volstruiskuikens teneinde voedselinname te stimuleer en sodoende produksie en oorlewing te verbeter (nl: verskaffing van groenvoer, geur van voer, kleur van voer en beligting van voer). Die laaste hoofstuk bestaan uit ‘n algemene gevolgtrekking en aanbevelings. Alhoewel daar gepoog is om herhaling in hoofstukke te beperk, was dit onmoontlik om herhaling van sekere gedeeltes van hoofstukke te voorkom.
- Full Text:
- Date Issued: 2008
First and second born twins: a comparative study utilizing the Graffiths mental development scales - extended revised
- Authors: Davidson, Gabrielle
- Date: 2008
- Subjects: Griffiths Scales of Mental Development , Twins -- Intelligence testing -- South Africa , Preschool children -- Intelligence testing -- South Africa , Mental development -- Testing , Psychological tests for children
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9921 , http://hdl.handle.net/10948/669 , Griffiths Scales of Mental Development , Twins -- Intelligence testing -- South Africa , Preschool children -- Intelligence testing -- South Africa , Mental development -- Testing , Psychological tests for children
- Description: Despite the concept of twins and twinning being a highly explored area of research for many years, limited research has been conducted on the comparison of first and second born twin development. The nature of twins leads people to believe that twins will present with similar characteristics, however, this study explores the possibility that due to their ordinal position they could in fact present with differing characteristics and could differ developmentally. The early holistic development of a child influences the rest of their lives. Concerning twins, the development of individuality and self-knowledge is especially important. Theorists, such as Piaget (1950), propose that child development takes place in stages and that although the order in which children proceed through these stages is the same, the pace at which this takes place can vary. The necessity of monitoring the child’s journey through these stages highlights the value of child developmental assessment. This form of assessment needs to be holistic, needs to involve a multidisciplinary team of professionals and needs to utilize assessment measures that are valid, reliable, culture-fair and standardized. The Griffiths Mental Development Scales-Extended Revised (GMDS-ER) is one such measure. This study, focusing on twin development, aimed to contribute and provide valuable information to a larger research project that is currently under way aiming to increase the applicability of the Griffiths Mental Development Scales-Extended Revised (GMDS-ER) in the South African context. The primary aim of the study, however, was to explore and compare the performance of normal first born and second born twins, aged between 2 and 8 years 4 months old, on the GMDS-ER. The purpose of the study was to generate information on the relationship between first born twins’ general development and second born twins’ general development. An exploratory, descriptive quantitative design was used. Participants were selected through a combination of non-probability purposive, convenience and snowball sampling. Data was analysed using descriptive statistics and dependent sample t-tests were employed to compare the General Quotients (GQ’s) of the first and second born twins in the sample. Results showed that no significant differences were found between the first and second born twins’ general development. Information generated from this study contributed to 1) child development research; 2) twin developmental research within a South African context; and 3) a greater group of studies on the GMDS-ER, currently underway in the United Kingdom and South Africa, aiming to contribute to the international credibility of this measure
- Full Text:
- Date Issued: 2008
- Authors: Davidson, Gabrielle
- Date: 2008
- Subjects: Griffiths Scales of Mental Development , Twins -- Intelligence testing -- South Africa , Preschool children -- Intelligence testing -- South Africa , Mental development -- Testing , Psychological tests for children
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9921 , http://hdl.handle.net/10948/669 , Griffiths Scales of Mental Development , Twins -- Intelligence testing -- South Africa , Preschool children -- Intelligence testing -- South Africa , Mental development -- Testing , Psychological tests for children
- Description: Despite the concept of twins and twinning being a highly explored area of research for many years, limited research has been conducted on the comparison of first and second born twin development. The nature of twins leads people to believe that twins will present with similar characteristics, however, this study explores the possibility that due to their ordinal position they could in fact present with differing characteristics and could differ developmentally. The early holistic development of a child influences the rest of their lives. Concerning twins, the development of individuality and self-knowledge is especially important. Theorists, such as Piaget (1950), propose that child development takes place in stages and that although the order in which children proceed through these stages is the same, the pace at which this takes place can vary. The necessity of monitoring the child’s journey through these stages highlights the value of child developmental assessment. This form of assessment needs to be holistic, needs to involve a multidisciplinary team of professionals and needs to utilize assessment measures that are valid, reliable, culture-fair and standardized. The Griffiths Mental Development Scales-Extended Revised (GMDS-ER) is one such measure. This study, focusing on twin development, aimed to contribute and provide valuable information to a larger research project that is currently under way aiming to increase the applicability of the Griffiths Mental Development Scales-Extended Revised (GMDS-ER) in the South African context. The primary aim of the study, however, was to explore and compare the performance of normal first born and second born twins, aged between 2 and 8 years 4 months old, on the GMDS-ER. The purpose of the study was to generate information on the relationship between first born twins’ general development and second born twins’ general development. An exploratory, descriptive quantitative design was used. Participants were selected through a combination of non-probability purposive, convenience and snowball sampling. Data was analysed using descriptive statistics and dependent sample t-tests were employed to compare the General Quotients (GQ’s) of the first and second born twins in the sample. Results showed that no significant differences were found between the first and second born twins’ general development. Information generated from this study contributed to 1) child development research; 2) twin developmental research within a South African context; and 3) a greater group of studies on the GMDS-ER, currently underway in the United Kingdom and South Africa, aiming to contribute to the international credibility of this measure
- Full Text:
- Date Issued: 2008
Franchising a full service restaurant concept : a case study
- Authors: Thomson, Guy
- Date: 2008
- Subjects: Franchises (Retail trade) -- South Africa -- Eastern Cape , Franchises (Retail trade) -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8728 , http://hdl.handle.net/10948/874 , Franchises (Retail trade) -- South Africa -- Eastern Cape , Franchises (Retail trade) -- Management
- Description: This treatise investigates the restaurant industry, entrepreneurship, franchising and restaurant franchising in order to develop a model that will enable a full service restaurant concept to be converted into a successful franchise system. Restaurants play a significant role in our lifestyle, and dining out is a favoured social activity. The industry plays an important role in the transfer of skills as many people start working in the restaurant industry before moving onto more formal careers. The restaurant industry offers many opportunities for entrepreneurial activity as a result of the relatively low barriers to entry. Entrepreneurship is the pursuit of opportunity regardless of the resources at hand and it requires a willingness to take calculated risks in order to build something of value from virtually nothing. The success of emerging economies such as China and India has proven that the only growth sectors in these economies are small and medium enterprises, which are driven by entrepreneurs. Franchising is considered to be a viable growth strategy for small business as it provides a means of raising capital and a method of expanding the business in a relatively low risk manner. There are many well established restaurant franchise brands that originated in South Africa, starting out as successful single outlets and then by means of the business format franchise model, developed into multi unit franchise systems. There are certain basic generic steps that must be followed when developing a franchise system. This was verified by the empirical study of this treatise which was conducted as a single unit case study on the Dulce Franchise Group. Finally, as a result of the analysis of the literature study and the findings of the case study, a restaurant franchise conversion model was developed.
- Full Text:
- Date Issued: 2008
- Authors: Thomson, Guy
- Date: 2008
- Subjects: Franchises (Retail trade) -- South Africa -- Eastern Cape , Franchises (Retail trade) -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8728 , http://hdl.handle.net/10948/874 , Franchises (Retail trade) -- South Africa -- Eastern Cape , Franchises (Retail trade) -- Management
- Description: This treatise investigates the restaurant industry, entrepreneurship, franchising and restaurant franchising in order to develop a model that will enable a full service restaurant concept to be converted into a successful franchise system. Restaurants play a significant role in our lifestyle, and dining out is a favoured social activity. The industry plays an important role in the transfer of skills as many people start working in the restaurant industry before moving onto more formal careers. The restaurant industry offers many opportunities for entrepreneurial activity as a result of the relatively low barriers to entry. Entrepreneurship is the pursuit of opportunity regardless of the resources at hand and it requires a willingness to take calculated risks in order to build something of value from virtually nothing. The success of emerging economies such as China and India has proven that the only growth sectors in these economies are small and medium enterprises, which are driven by entrepreneurs. Franchising is considered to be a viable growth strategy for small business as it provides a means of raising capital and a method of expanding the business in a relatively low risk manner. There are many well established restaurant franchise brands that originated in South Africa, starting out as successful single outlets and then by means of the business format franchise model, developed into multi unit franchise systems. There are certain basic generic steps that must be followed when developing a franchise system. This was verified by the empirical study of this treatise which was conducted as a single unit case study on the Dulce Franchise Group. Finally, as a result of the analysis of the literature study and the findings of the case study, a restaurant franchise conversion model was developed.
- Full Text:
- Date Issued: 2008
Geographic variation in the susceptibility of false colding Moth, Thaumatotibia Leucotreta, populations to a granulovirus (CrleGV-SA)
- Authors: Opoku-Debrah, John Kwadwo
- Date: 2008
- Subjects: Cryptophlebia leucotreta , Cryptophlebia leucotreta -- Control , Pests -- Biological control , Citrus -- Diseases and pests
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10586 , http://hdl.handle.net/10948/984 , Cryptophlebia leucotreta , Cryptophlebia leucotreta -- Control , Pests -- Biological control , Citrus -- Diseases and pests
- Description: The false codling moth (FCM), Thaumatotibia (=Cryptophlebia) leucotreta (Meyrick) (Lepidoptera: Tortricidae) is a serious pest of citrus and other crops in Sub-Saharan Africa. The introduction of the Cryptophlebia leucotreta granulovirus (CrleGV-SA) Cryptogran and Cryptex (biopesticides) has proven to be very effective in the control of FCM. However, markedly lower susceptibility of some codling moth (CM), Cydia pomonella (L.) populations to Cydia pomonella granulovirus (CpGV-M), another granulovirus product used in the control of CM’s in Europe have been reported. Genetic differences between FCM populations in South Africa have also been established. It is therefore possible that differences in the susceptibility of these geographically distinct FCM populations to CrleGV-SA might also exist. To investigate this phenomenon, a benchmark for pathogenecity was established. In continuation of previous work with Cryptogran against the 1st and 5th instar FCM larvae, dose-response relationships were established for all five larval instars of FCM. In surface dose-response bioassays, the LC50 values for the 2nd, 3rd and 4th instars were calculated to be 4.516 x 104, 1.662 x 105 and 2.205 x 106 occlusion bodies (OBs)/ml, respectively. The LC90 values for the 2nd, 3rd and 4th instars were calculated to be 4.287 x 106, 9.992 x 106 and 1.661 x 108 OBs/ml, respectively. Susceptibility to CrleGV-SA was found to decline with larval stage and increase with time of exposure. The protocol was used in guiding bioassays with field collected FCM larvae. Laboratory assays conducted with Cryptogran (at 1.661 x 108 OBs/ml) against field collected FCM larvae from Addo, Kirkwood, Citrusdal and Clanwilliam as well as a standard laboratory colony, showed a significant difference in pathogenecity in only one case. This significant difference was observed between 5th instars from the Addo colony and 5th instars from the other populations. Four geographically distinct FCM colonies from Addo, Citrusdal, Marble Hall and Nelspruit were also established. Since Cryptogran and Cryptex are always targeted against 1st instar FCM larvae in the field, further comparative laboratory assays were conducted with the Addo colony and an old laboratory colony. Cryptogran was significantly more pathogenic than Cryptex against both the Addo and the old colony. However, a high level of heterogeneity was observed in responses within each population.
- Full Text:
- Date Issued: 2008
- Authors: Opoku-Debrah, John Kwadwo
- Date: 2008
- Subjects: Cryptophlebia leucotreta , Cryptophlebia leucotreta -- Control , Pests -- Biological control , Citrus -- Diseases and pests
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10586 , http://hdl.handle.net/10948/984 , Cryptophlebia leucotreta , Cryptophlebia leucotreta -- Control , Pests -- Biological control , Citrus -- Diseases and pests
- Description: The false codling moth (FCM), Thaumatotibia (=Cryptophlebia) leucotreta (Meyrick) (Lepidoptera: Tortricidae) is a serious pest of citrus and other crops in Sub-Saharan Africa. The introduction of the Cryptophlebia leucotreta granulovirus (CrleGV-SA) Cryptogran and Cryptex (biopesticides) has proven to be very effective in the control of FCM. However, markedly lower susceptibility of some codling moth (CM), Cydia pomonella (L.) populations to Cydia pomonella granulovirus (CpGV-M), another granulovirus product used in the control of CM’s in Europe have been reported. Genetic differences between FCM populations in South Africa have also been established. It is therefore possible that differences in the susceptibility of these geographically distinct FCM populations to CrleGV-SA might also exist. To investigate this phenomenon, a benchmark for pathogenecity was established. In continuation of previous work with Cryptogran against the 1st and 5th instar FCM larvae, dose-response relationships were established for all five larval instars of FCM. In surface dose-response bioassays, the LC50 values for the 2nd, 3rd and 4th instars were calculated to be 4.516 x 104, 1.662 x 105 and 2.205 x 106 occlusion bodies (OBs)/ml, respectively. The LC90 values for the 2nd, 3rd and 4th instars were calculated to be 4.287 x 106, 9.992 x 106 and 1.661 x 108 OBs/ml, respectively. Susceptibility to CrleGV-SA was found to decline with larval stage and increase with time of exposure. The protocol was used in guiding bioassays with field collected FCM larvae. Laboratory assays conducted with Cryptogran (at 1.661 x 108 OBs/ml) against field collected FCM larvae from Addo, Kirkwood, Citrusdal and Clanwilliam as well as a standard laboratory colony, showed a significant difference in pathogenecity in only one case. This significant difference was observed between 5th instars from the Addo colony and 5th instars from the other populations. Four geographically distinct FCM colonies from Addo, Citrusdal, Marble Hall and Nelspruit were also established. Since Cryptogran and Cryptex are always targeted against 1st instar FCM larvae in the field, further comparative laboratory assays were conducted with the Addo colony and an old laboratory colony. Cryptogran was significantly more pathogenic than Cryptex against both the Addo and the old colony. However, a high level of heterogeneity was observed in responses within each population.
- Full Text:
- Date Issued: 2008
Growth of the South African abalone (Haliotis Midae) on three diets, under commercial conditions
- Authors: Makhande, Emmanuel Denis
- Date: 2008
- Subjects: Haliotis midae -- South Africa , Abalone culture -- South Africa , Abalones -- Nutrition -- South Africa , Abalones -- Physiology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10706 , http://hdl.handle.net/10948/755 , Haliotis midae -- South Africa , Abalone culture -- South Africa , Abalones -- Nutrition -- South Africa , Abalones -- Physiology -- South Africa
- Description: Haliotis midae is the cornerstone of the South African abalone fishery. For more than a decade, the wild abalone stock of South Africa has suffered decline due to over-exploitation and illegal activities such as poaching. Prior to 1970, no regulations were in place concerning the annual landings. As a result the fishery was exploited as if it were an infinite resource. It is this initial uncontrolled harvesting (regardless of age) and poaching that has driven the abalone resource decline. Due to the slow growth rate exhibited by abalone as a species, natural replenishment of wild stock following exploitation and poaching was far below the rate of exploitation of this resource. Studies on the growth of abalone have mainly been conducted under laboratory conditions. The purpose of this study was to measure the growth of abalone, fed different diets, under commercial culture conditions. Three food types were used namely; commercial pellets, seaweed (Ulva spp.) and dried kelp bars (Ecklonia maxima). Four diets were obtained from the three food types namely; combination of commercial pellets and seaweed (Diet A), commercial pellets only (Diet B), seaweed only (Diet C) and dried kelp bars only (Diet D). The food types used in this study represent both artificial (Commercial pellets) and natural feeds (seaweed and kelp) used in commercial abalone culture. The growth of two cohorts (40-50 mm and 50-60 mm) was followed over a 426 day period, with data for the first 183 days being used for statistical analysis to determine performance of a given diet. The best growth rates were found in abalone fed Diet A (40-50 mm: 2.64 mm.month-1; 50-60 mm 2.78: mm.month-1) and B (40-50 mm: 2.20 mm.month-1; 50-60 mm: 2.35: mm.month-1). These (Diets A and B) gave higher growth rates when compared to Diets C and D (natural diets), whose growth rates ranged between 0.50 mm.month-1 and 1.71 mm.month-1 for both cohorts. Also observed in this study was that, the mixture of formulated diet and seaweed gave better growth than formulated diet given exclusively.
- Full Text:
- Date Issued: 2008
- Authors: Makhande, Emmanuel Denis
- Date: 2008
- Subjects: Haliotis midae -- South Africa , Abalone culture -- South Africa , Abalones -- Nutrition -- South Africa , Abalones -- Physiology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10706 , http://hdl.handle.net/10948/755 , Haliotis midae -- South Africa , Abalone culture -- South Africa , Abalones -- Nutrition -- South Africa , Abalones -- Physiology -- South Africa
- Description: Haliotis midae is the cornerstone of the South African abalone fishery. For more than a decade, the wild abalone stock of South Africa has suffered decline due to over-exploitation and illegal activities such as poaching. Prior to 1970, no regulations were in place concerning the annual landings. As a result the fishery was exploited as if it were an infinite resource. It is this initial uncontrolled harvesting (regardless of age) and poaching that has driven the abalone resource decline. Due to the slow growth rate exhibited by abalone as a species, natural replenishment of wild stock following exploitation and poaching was far below the rate of exploitation of this resource. Studies on the growth of abalone have mainly been conducted under laboratory conditions. The purpose of this study was to measure the growth of abalone, fed different diets, under commercial culture conditions. Three food types were used namely; commercial pellets, seaweed (Ulva spp.) and dried kelp bars (Ecklonia maxima). Four diets were obtained from the three food types namely; combination of commercial pellets and seaweed (Diet A), commercial pellets only (Diet B), seaweed only (Diet C) and dried kelp bars only (Diet D). The food types used in this study represent both artificial (Commercial pellets) and natural feeds (seaweed and kelp) used in commercial abalone culture. The growth of two cohorts (40-50 mm and 50-60 mm) was followed over a 426 day period, with data for the first 183 days being used for statistical analysis to determine performance of a given diet. The best growth rates were found in abalone fed Diet A (40-50 mm: 2.64 mm.month-1; 50-60 mm 2.78: mm.month-1) and B (40-50 mm: 2.20 mm.month-1; 50-60 mm: 2.35: mm.month-1). These (Diets A and B) gave higher growth rates when compared to Diets C and D (natural diets), whose growth rates ranged between 0.50 mm.month-1 and 1.71 mm.month-1 for both cohorts. Also observed in this study was that, the mixture of formulated diet and seaweed gave better growth than formulated diet given exclusively.
- Full Text:
- Date Issued: 2008
Have the continuous improvement (CI) efforts at Absa Bank's Horizon Medium Business Banking Unit, in the Gauteng West Region successfully addressed the key concepts of continuous improvement as set out by Trollip, 2008?
- Authors: Ndlovu, Sinqobile Khobotho
- Date: 2008
- Subjects: Banks and banking -- Customer services -- South Africa , Organizational effectiveness
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8721 , http://hdl.handle.net/10948/904 , Banks and banking -- Customer services -- South Africa , Organizational effectiveness
- Description: Success in today’s highly competitive financial sector requires an organization to have a sustainable competitive advantage that would distinguish it from the rest. Products offered by financial organizations are naturally the same and the quality of service plays a critical role in terms of creating the much needed competitive advantage. This calls for the implementation of quality initiatives like Continuous improvement (CI). This paper investigates the extent to which CI efforts at the Horizon business unit of Absa corporate and business banking have successfully addressed the key concepts of CI set out by Trollip (2008). A literature survey was undertaken into the elements and benefits of CI. Questionnaires were sent to all employees of the business unit for their views on CI and the impact, they believe it has on the unit’s endeavors to deliver faster, defect free, innovative products/services, whilst achieving tougher goals. In conclusion the research paper led to recommendations to improve the CI efforts at the Horizon business unit. The research also confirmed the importance of the commitment of all employees is essential for the success of CI efforts in improving the quality of service offered by an organization.
- Full Text:
- Date Issued: 2008
- Authors: Ndlovu, Sinqobile Khobotho
- Date: 2008
- Subjects: Banks and banking -- Customer services -- South Africa , Organizational effectiveness
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8721 , http://hdl.handle.net/10948/904 , Banks and banking -- Customer services -- South Africa , Organizational effectiveness
- Description: Success in today’s highly competitive financial sector requires an organization to have a sustainable competitive advantage that would distinguish it from the rest. Products offered by financial organizations are naturally the same and the quality of service plays a critical role in terms of creating the much needed competitive advantage. This calls for the implementation of quality initiatives like Continuous improvement (CI). This paper investigates the extent to which CI efforts at the Horizon business unit of Absa corporate and business banking have successfully addressed the key concepts of CI set out by Trollip (2008). A literature survey was undertaken into the elements and benefits of CI. Questionnaires were sent to all employees of the business unit for their views on CI and the impact, they believe it has on the unit’s endeavors to deliver faster, defect free, innovative products/services, whilst achieving tougher goals. In conclusion the research paper led to recommendations to improve the CI efforts at the Horizon business unit. The research also confirmed the importance of the commitment of all employees is essential for the success of CI efforts in improving the quality of service offered by an organization.
- Full Text:
- Date Issued: 2008
Impact assessment of the local governmant reforms in Rwanda : the case study of Kigali City
- Authors: Apollo, Munanura
- Date: 2008
- Subjects: Local government -- Rwanda
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8226 , http://hdl.handle.net/10948/918 , Local government -- Rwanda
- Description: The local governance system has undergone positive changes since 1994 when the Government of National Unity took over power in Rwanda. The government has instituted democratic changes in the structure and functioning of local government through decentralisation. Since 2000 when the decentralisation policy was launched, Rwanda has evolved a model of local governance that has come to be emulated by its neighbouring countries. Since 2000, when the Local Government Act affected the decentralised structures of local government, some changes have occurred, challenges have emerged and constraints have been experienced in the implementation of the policy of decentralisation. Methodology used in the impact assessment study The researcher administered questionnaires, conducted interviews and documentary analysis. The assessment covered (3) three districts which were purposively selected on the basis of criteria that were considered sufficiently representative and based on the rationale of the study. Key findings of the study The study established that the restructuring exercise streamlined the structures of local governments, aligned mandates to the structures, and graded jobs in line with responsibilities. These reforms have improved the performance of the local governments. Despite notable improvements, the study established that there were still gaps in the local government system that needed to be addressed. These included: i. There is a big skills gap in most local governments. Some positions in local government are not filled due to inadequate resources. ii. Some local governments are finding it difficult to attract qualified and competent personnel to take up jobs at technical and managerial levels. iii. Local government lack attractive working environments. iv. There are limited career growth opportunities in local government service. xiv v. There is low local revenue. This has imposed limitations to accountability, supervision and monitoring of local government programmes. vi. Professional staff in local government is not adequately facilitated to do their work efficiently and effectively. vii. The existing capacity building programmes contribute marginally to career growth of individual staff members. viii. New reform programmes for improving service delivery such as results oriented management (ROM) and fiscal decentralisation strategy (FDS) have been rolled out but are not yet utilised in some of the local governments.
- Full Text:
- Date Issued: 2008
- Authors: Apollo, Munanura
- Date: 2008
- Subjects: Local government -- Rwanda
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8226 , http://hdl.handle.net/10948/918 , Local government -- Rwanda
- Description: The local governance system has undergone positive changes since 1994 when the Government of National Unity took over power in Rwanda. The government has instituted democratic changes in the structure and functioning of local government through decentralisation. Since 2000 when the decentralisation policy was launched, Rwanda has evolved a model of local governance that has come to be emulated by its neighbouring countries. Since 2000, when the Local Government Act affected the decentralised structures of local government, some changes have occurred, challenges have emerged and constraints have been experienced in the implementation of the policy of decentralisation. Methodology used in the impact assessment study The researcher administered questionnaires, conducted interviews and documentary analysis. The assessment covered (3) three districts which were purposively selected on the basis of criteria that were considered sufficiently representative and based on the rationale of the study. Key findings of the study The study established that the restructuring exercise streamlined the structures of local governments, aligned mandates to the structures, and graded jobs in line with responsibilities. These reforms have improved the performance of the local governments. Despite notable improvements, the study established that there were still gaps in the local government system that needed to be addressed. These included: i. There is a big skills gap in most local governments. Some positions in local government are not filled due to inadequate resources. ii. Some local governments are finding it difficult to attract qualified and competent personnel to take up jobs at technical and managerial levels. iii. Local government lack attractive working environments. iv. There are limited career growth opportunities in local government service. xiv v. There is low local revenue. This has imposed limitations to accountability, supervision and monitoring of local government programmes. vi. Professional staff in local government is not adequately facilitated to do their work efficiently and effectively. vii. The existing capacity building programmes contribute marginally to career growth of individual staff members. viii. New reform programmes for improving service delivery such as results oriented management (ROM) and fiscal decentralisation strategy (FDS) have been rolled out but are not yet utilised in some of the local governments.
- Full Text:
- Date Issued: 2008
Improving academic literacy at higher education
- Authors: Free, Loretta Dianna
- Date: 2008
- Subjects: Literacy -- Study and teaching (Higher) , Information literacy -- Study and teaching (Higher) , Academic writing -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9531 , http://hdl.handle.net/10948/839 , Literacy -- Study and teaching (Higher) , Information literacy -- Study and teaching (Higher) , Academic writing -- Study and teaching (Higher)
- Description: This study is a deliberation on students who advance from high school to a higher education institution, without demonstrating the attributes required on admission. They are granted formal access, despite being underprepared for tertiary studies. One of the qualities that they noticible lack is academic literacy. In the course of this investigation, academics had to relate what their perceptions were of the academic literacy of their students at higher education level. Initially, being literate meant the ability to read and write, but the term literacy has assumed a more varied form. The term multi-literacies is employed now, as there are several forms of literacy. These include, Information Technology, Technology, pictorial and numerical literacies, to name a few. Academic literacy constitutes more than one literacy, namely, operational or functional literacy, cultural literacy and critical literacy. These literacies are elaborated on and the role of language proficiency, together with the inter-relatedness between students' linguistic competence and their cognitive ability are discussed in depth. Alternatives are examined to assess how this problem of the lack of academic literacy can be circumvented and what mechanisms can be put in place in order that students can be assisted in their pursuit of academic literacy.
- Full Text:
- Date Issued: 2008
- Authors: Free, Loretta Dianna
- Date: 2008
- Subjects: Literacy -- Study and teaching (Higher) , Information literacy -- Study and teaching (Higher) , Academic writing -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9531 , http://hdl.handle.net/10948/839 , Literacy -- Study and teaching (Higher) , Information literacy -- Study and teaching (Higher) , Academic writing -- Study and teaching (Higher)
- Description: This study is a deliberation on students who advance from high school to a higher education institution, without demonstrating the attributes required on admission. They are granted formal access, despite being underprepared for tertiary studies. One of the qualities that they noticible lack is academic literacy. In the course of this investigation, academics had to relate what their perceptions were of the academic literacy of their students at higher education level. Initially, being literate meant the ability to read and write, but the term literacy has assumed a more varied form. The term multi-literacies is employed now, as there are several forms of literacy. These include, Information Technology, Technology, pictorial and numerical literacies, to name a few. Academic literacy constitutes more than one literacy, namely, operational or functional literacy, cultural literacy and critical literacy. These literacies are elaborated on and the role of language proficiency, together with the inter-relatedness between students' linguistic competence and their cognitive ability are discussed in depth. Alternatives are examined to assess how this problem of the lack of academic literacy can be circumvented and what mechanisms can be put in place in order that students can be assisted in their pursuit of academic literacy.
- Full Text:
- Date Issued: 2008
Improving the reading abililties of grade 9 learners: a classroom-based inquiry: how do I facilitate improvement in the reading abilities of my Grade 9 learners?
- Authors: Didloft, Virginia Charmaine
- Date: 2008
- Subjects: Reading disability -- South Africa , Reading -- Ability testing -- South Africa , Reading -- Remedial teaching -- South Africa -- Aids and devices
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9553 , http://hdl.handle.net/10948/942 , Reading disability -- South Africa , Reading -- Ability testing -- South Africa , Reading -- Remedial teaching -- South Africa -- Aids and devices
- Description: This thesis is a narrative account of how I have transformed my learning and teaching strategies for Grade 9 learners, generating my own living theory of teaching within a social context with the aim of enabling my learners to construct their own knowledge. My value-embedded practice is reflected in the values I attach to equality, inclusivity, social justice and basic human rights. These embodied values are also a reflection of my commitment to my Christian values which encompass my entire existence and have become the living standards by which I judge the quality of my research. My classroom-based action research methodology is a living transformational process which heralds a change for a more just practice and the inclusion and recognition of the individual. My findings about my learners’ and my own learning offer new conceptualisations about the capacity of my learners to learn in their own unique ways and according to their own potential. I am claiming that the significance of my research is grounded in my ability to demonstrate how I can unleash the untapped potential of learners failing to attain the desired outcomes. I show them how to learn confidently and successfully within a social context using prior knowledge, scaffolding and motivation as teaching and learning tools. This has potential inspiration for new forms of practice and theory in aiming to improve learners’ potential. A significant feature of my account is how my Christian values have been translated into my critical epistemological standards of judgement, and the development of a living theory of practice that enables me to account for educational influences in my learners’ and my own learning.
- Full Text:
- Date Issued: 2008
- Authors: Didloft, Virginia Charmaine
- Date: 2008
- Subjects: Reading disability -- South Africa , Reading -- Ability testing -- South Africa , Reading -- Remedial teaching -- South Africa -- Aids and devices
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9553 , http://hdl.handle.net/10948/942 , Reading disability -- South Africa , Reading -- Ability testing -- South Africa , Reading -- Remedial teaching -- South Africa -- Aids and devices
- Description: This thesis is a narrative account of how I have transformed my learning and teaching strategies for Grade 9 learners, generating my own living theory of teaching within a social context with the aim of enabling my learners to construct their own knowledge. My value-embedded practice is reflected in the values I attach to equality, inclusivity, social justice and basic human rights. These embodied values are also a reflection of my commitment to my Christian values which encompass my entire existence and have become the living standards by which I judge the quality of my research. My classroom-based action research methodology is a living transformational process which heralds a change for a more just practice and the inclusion and recognition of the individual. My findings about my learners’ and my own learning offer new conceptualisations about the capacity of my learners to learn in their own unique ways and according to their own potential. I am claiming that the significance of my research is grounded in my ability to demonstrate how I can unleash the untapped potential of learners failing to attain the desired outcomes. I show them how to learn confidently and successfully within a social context using prior knowledge, scaffolding and motivation as teaching and learning tools. This has potential inspiration for new forms of practice and theory in aiming to improve learners’ potential. A significant feature of my account is how my Christian values have been translated into my critical epistemological standards of judgement, and the development of a living theory of practice that enables me to account for educational influences in my learners’ and my own learning.
- Full Text:
- Date Issued: 2008
Information communication and technology in Port Elizabeth secondary schools : exploring the digital divide
- Authors: Adebisi, Adeolu Abiodun
- Date: 2008
- Subjects: Information technology -- Study and teaching (Secondary) -- South Africa , Educational technology -- South Africa , Information technology -- South Africa , Computer-assisted instruction -- South Africa , Educational innovations
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9770 , http://hdl.handle.net/10948/914 , Information technology -- Study and teaching (Secondary) -- South Africa , Educational technology -- South Africa , Information technology -- South Africa , Computer-assisted instruction -- South Africa , Educational innovations
- Description: The primary goal of the research is to investigate the extent of ICT adoption in secondary schools within the larger Port Elizabeth area. In order to demonstrate the current status, two geographical areas within that area namely privileged and less privileged areas will be selected and surveyed. The main objective of this research study is to survey the access to ICT services by learners and teachers living and working in less privileged communities compared with that of learners and teachers in the more privileged communities of Port Elizabeth. At present all the schools in these communities are funded by the same provincial government, but the extent of the digital divide is not known. This research will investigate the factors that lead to the inequalities in the access to ICT among secondary school learners and teachers. This research has the following sub goals and objectives: 1. To identify the factors that impact on the status of access to ICT services; 2. To determine which socio-economic factors contribute to the status of access to ICT services in the specific areas; 3. To determine the status of access to ICT services in specific communities within the larger Port Elizabeth area; 4. To determine whether the level of access differs between secondary schools and the homes of teachers and learners in the identified areas.
- Full Text:
- Date Issued: 2008
- Authors: Adebisi, Adeolu Abiodun
- Date: 2008
- Subjects: Information technology -- Study and teaching (Secondary) -- South Africa , Educational technology -- South Africa , Information technology -- South Africa , Computer-assisted instruction -- South Africa , Educational innovations
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9770 , http://hdl.handle.net/10948/914 , Information technology -- Study and teaching (Secondary) -- South Africa , Educational technology -- South Africa , Information technology -- South Africa , Computer-assisted instruction -- South Africa , Educational innovations
- Description: The primary goal of the research is to investigate the extent of ICT adoption in secondary schools within the larger Port Elizabeth area. In order to demonstrate the current status, two geographical areas within that area namely privileged and less privileged areas will be selected and surveyed. The main objective of this research study is to survey the access to ICT services by learners and teachers living and working in less privileged communities compared with that of learners and teachers in the more privileged communities of Port Elizabeth. At present all the schools in these communities are funded by the same provincial government, but the extent of the digital divide is not known. This research will investigate the factors that lead to the inequalities in the access to ICT among secondary school learners and teachers. This research has the following sub goals and objectives: 1. To identify the factors that impact on the status of access to ICT services; 2. To determine which socio-economic factors contribute to the status of access to ICT services in the specific areas; 3. To determine the status of access to ICT services in specific communities within the larger Port Elizabeth area; 4. To determine whether the level of access differs between secondary schools and the homes of teachers and learners in the identified areas.
- Full Text:
- Date Issued: 2008
Integer optimization for the selection of a twenty20 cricket team
- Authors: Lourens, Mark
- Date: 2008
- Subjects: Cricket -- Coaching , Teamwork (Sports) , Cricket players , Sports -- Research -- Methodology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10568 , http://hdl.handle.net/10948/1000 , http://hdl.handle.net/10948/d1009631 , Cricket -- Coaching , Teamwork (Sports) , Cricket players , Sports -- Research -- Methodology
- Description: During the last few years, much effort has been devoted to measuring the ability of sport teams, as well as that of the individual players. Much research has been on the game of cricket, and the comparison, or ranking, of players according to their abilities. This study continues preceding research using an optimization approach, namely, a binary integer programme, to select an SA domestic Pro20 cricket team.
- Full Text:
- Date Issued: 2008
- Authors: Lourens, Mark
- Date: 2008
- Subjects: Cricket -- Coaching , Teamwork (Sports) , Cricket players , Sports -- Research -- Methodology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10568 , http://hdl.handle.net/10948/1000 , http://hdl.handle.net/10948/d1009631 , Cricket -- Coaching , Teamwork (Sports) , Cricket players , Sports -- Research -- Methodology
- Description: During the last few years, much effort has been devoted to measuring the ability of sport teams, as well as that of the individual players. Much research has been on the game of cricket, and the comparison, or ranking, of players according to their abilities. This study continues preceding research using an optimization approach, namely, a binary integer programme, to select an SA domestic Pro20 cricket team.
- Full Text:
- Date Issued: 2008
Investigating teamwork competencies in the value chain of a selected wool brokerage logistics department
- Authors: Craig, Kenneth Bruce
- Date: 2008
- Subjects: Teams in the workplace -- South Africa , Teams in the workplace -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8712 , http://hdl.handle.net/10948/936 , Teams in the workplace -- South Africa , Teams in the workplace -- Management
- Description: department of BKB Ltd. The research aimed at addressing the team balance, the environment and culture in which the team operates and teamwork competencies of the value chain. Thus, creating a high performance value chain team will add to the success of the team, and hence the company as a whole. Research to establish the degree of teamwork within the value chain was undertaken. A survey which included a structured self-administered questionnaire was used to elicit information from all eight value chain team members (four section heads and their four supervisors), who represented the entire cross-section of the value chain team. The research revealed the following important points pertaining to the value chain team: • The team’s balance needs to be addressed; and • The culture and environment in which the team operates needs to be reviewed. Points of interest pertaining to teamwork competencies include the following: • The degree of teamwork is average; • The level of individual competencies is high; • The extent that team members are team players is average; • That team communication is below average; • A high perception of hidden agendas exists; • Dysfunctional team conflict exists; • A high level of empowerment and autonomy exists; • Team leadership - team linker is absent; • Co-operation and collaboration is below average; • Team attitude is high; • Team motivation is high; • Team strategies exist, but need more attention; • Team set goals are set; • Free-wheelers exist in the team; • Job satisfaction is above average; • Team recognition is high; and • Team synergy is average. Teamwork needs to be analyzed holistically, to ensure that the complex dynamics of teamwork is acknowledged and understood. A greater knowledge and understanding of the characteristics and measurement criteria of teamwork will equip team enthusiasts in building high performance teams, to the benefit of all role players. High performance team based organisations will add to the current and future success of the business. As the term “synergy” implies, the result is greater than the sum of the individual effects and capabilities. This emphasises why team-based organisations are fast becoming the modern trend of doing business.
- Full Text:
- Date Issued: 2008
- Authors: Craig, Kenneth Bruce
- Date: 2008
- Subjects: Teams in the workplace -- South Africa , Teams in the workplace -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8712 , http://hdl.handle.net/10948/936 , Teams in the workplace -- South Africa , Teams in the workplace -- Management
- Description: department of BKB Ltd. The research aimed at addressing the team balance, the environment and culture in which the team operates and teamwork competencies of the value chain. Thus, creating a high performance value chain team will add to the success of the team, and hence the company as a whole. Research to establish the degree of teamwork within the value chain was undertaken. A survey which included a structured self-administered questionnaire was used to elicit information from all eight value chain team members (four section heads and their four supervisors), who represented the entire cross-section of the value chain team. The research revealed the following important points pertaining to the value chain team: • The team’s balance needs to be addressed; and • The culture and environment in which the team operates needs to be reviewed. Points of interest pertaining to teamwork competencies include the following: • The degree of teamwork is average; • The level of individual competencies is high; • The extent that team members are team players is average; • That team communication is below average; • A high perception of hidden agendas exists; • Dysfunctional team conflict exists; • A high level of empowerment and autonomy exists; • Team leadership - team linker is absent; • Co-operation and collaboration is below average; • Team attitude is high; • Team motivation is high; • Team strategies exist, but need more attention; • Team set goals are set; • Free-wheelers exist in the team; • Job satisfaction is above average; • Team recognition is high; and • Team synergy is average. Teamwork needs to be analyzed holistically, to ensure that the complex dynamics of teamwork is acknowledged and understood. A greater knowledge and understanding of the characteristics and measurement criteria of teamwork will equip team enthusiasts in building high performance teams, to the benefit of all role players. High performance team based organisations will add to the current and future success of the business. As the term “synergy” implies, the result is greater than the sum of the individual effects and capabilities. This emphasises why team-based organisations are fast becoming the modern trend of doing business.
- Full Text:
- Date Issued: 2008
Investigating the potential for the application of lean manufacturing in the can coating plant at Duco Coatings
- Authors: Erasmus, Deidre Felicia
- Date: 2008
- Subjects: Manufacturing processes -- South Africa , Waste minimization -- South Africa , Production management -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8579 , http://hdl.handle.net/10948/949 , Manufacturing processes -- South Africa , Waste minimization -- South Africa , Production management -- South Africa
- Description: Companies are constantly expected to be more competitive while working in an environment in which time and cost are limited, thereby preventing such companies from taking the time required to be responsive. It is, therefore, important that companies understand that conventional knowledge and methods will not serve unless there is a concerted focus on improvement of organisational performance toward fulfilling increased expectations, not just maintaining that which is comfortable. A more sustainable approach may be the introduction of lean manufacturing techniques. The lean manufacturing process is one that continuously strives to eliminate waste, thereby increasing the percentage of time that may be devoted to value-adding activities. Lean manufacturing principles were applied in the Can Coating Plant of Duco Speciality Coatings. This study was intended to identify waste in the current production process in the Can Coating Plant and then to use lean tools and principles to eliminate such waste. Implementation of these lean tools proved to result in a leaner and more value-adding process. The new process rendered a positive result on Duco Coating’s costs, quality and product performance. Recommendations on further improvements were also offered.
- Full Text:
- Date Issued: 2008
- Authors: Erasmus, Deidre Felicia
- Date: 2008
- Subjects: Manufacturing processes -- South Africa , Waste minimization -- South Africa , Production management -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8579 , http://hdl.handle.net/10948/949 , Manufacturing processes -- South Africa , Waste minimization -- South Africa , Production management -- South Africa
- Description: Companies are constantly expected to be more competitive while working in an environment in which time and cost are limited, thereby preventing such companies from taking the time required to be responsive. It is, therefore, important that companies understand that conventional knowledge and methods will not serve unless there is a concerted focus on improvement of organisational performance toward fulfilling increased expectations, not just maintaining that which is comfortable. A more sustainable approach may be the introduction of lean manufacturing techniques. The lean manufacturing process is one that continuously strives to eliminate waste, thereby increasing the percentage of time that may be devoted to value-adding activities. Lean manufacturing principles were applied in the Can Coating Plant of Duco Speciality Coatings. This study was intended to identify waste in the current production process in the Can Coating Plant and then to use lean tools and principles to eliminate such waste. Implementation of these lean tools proved to result in a leaner and more value-adding process. The new process rendered a positive result on Duco Coating’s costs, quality and product performance. Recommendations on further improvements were also offered.
- Full Text:
- Date Issued: 2008
Investigation of polarization mode dispersion measurement perfomance in optical fibre with a focus on the fixed analyzer technique
- Gamatham, Romeo Reginald Gunther
- Authors: Gamatham, Romeo Reginald Gunther
- Date: 2008
- Subjects: Fiber optics , Polarization (Light)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10524 , http://hdl.handle.net/10948/957 , Fiber optics , Polarization (Light)
- Description: The work presented in this dissertation is a comparative study of polarization mode dispersion (PMD) measurement performance where the fixed analyzer (FA) technique was built and tested for the first time in South Africa. Techniques involved in the study are: the Jones matrix eigenanalysis (JME), generalised interferometric technique (GINTY) and the FA technique, with a particular focus on the FA technique. The FA PMD measurement technique determines the average differential group delay (DGD) from the transmitted intensity spectrum through a polarizer and has three analysis methods (extrema counting, mean level crossing and Fourier analysis) which were all evaluated. PMD measurements were performed in the laboratory on several different fibre types and in the field on buried deployed Telkom fibre links (28.8 km). The techniques showed good agreement in the measured PMD value, both in the laboratory and field measurements. In particular very good agreement was found between the JME average DGD and the extrema counting analysis PMD value. The GINTY and FA Fourier analysis method also gave very similar PMD values. It was found that the fibre birefringence and the mode coupling manifest in different ways on the intensity spectrum. By using the FA ratio method, the length regimes of the different fibre types were determined. Three characteristics of the FA technique were investigated, namely: wavelength window variation, sampling and input SOP scrambling. It was found that the wavelength window and the PMD are inversely proportional. Correct sampling plays a significant role in determining the correct measured PMD value. Lastly an average PMD value over the PMD values for different input SOPs serves as a better representation of the true PMD value. An additional study showed that the FA technique and a developed Poincaré sphere analysis method agree very well regarding the PMD value.
- Full Text:
- Date Issued: 2008
- Authors: Gamatham, Romeo Reginald Gunther
- Date: 2008
- Subjects: Fiber optics , Polarization (Light)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10524 , http://hdl.handle.net/10948/957 , Fiber optics , Polarization (Light)
- Description: The work presented in this dissertation is a comparative study of polarization mode dispersion (PMD) measurement performance where the fixed analyzer (FA) technique was built and tested for the first time in South Africa. Techniques involved in the study are: the Jones matrix eigenanalysis (JME), generalised interferometric technique (GINTY) and the FA technique, with a particular focus on the FA technique. The FA PMD measurement technique determines the average differential group delay (DGD) from the transmitted intensity spectrum through a polarizer and has three analysis methods (extrema counting, mean level crossing and Fourier analysis) which were all evaluated. PMD measurements were performed in the laboratory on several different fibre types and in the field on buried deployed Telkom fibre links (28.8 km). The techniques showed good agreement in the measured PMD value, both in the laboratory and field measurements. In particular very good agreement was found between the JME average DGD and the extrema counting analysis PMD value. The GINTY and FA Fourier analysis method also gave very similar PMD values. It was found that the fibre birefringence and the mode coupling manifest in different ways on the intensity spectrum. By using the FA ratio method, the length regimes of the different fibre types were determined. Three characteristics of the FA technique were investigated, namely: wavelength window variation, sampling and input SOP scrambling. It was found that the wavelength window and the PMD are inversely proportional. Correct sampling plays a significant role in determining the correct measured PMD value. Lastly an average PMD value over the PMD values for different input SOPs serves as a better representation of the true PMD value. An additional study showed that the FA technique and a developed Poincaré sphere analysis method agree very well regarding the PMD value.
- Full Text:
- Date Issued: 2008
Manufacturing as a reference for rethinking construction design management
- Authors: Sidloyi, Xabiso
- Date: 2008
- Subjects: Industrial design -- Management , Construction industry -- Management -- South Africa -- Eastern Cape , Architecture -- Management
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:9667 , http://hdl.handle.net/10948/766 , Industrial design -- Management , Construction industry -- Management -- South Africa -- Eastern Cape , Architecture -- Management
- Description: Design changes due to lack of constructability, cost overruns, delays and dissatisfied clients are but a few problems experienced in construction due to poor management of the design processes. Increased problems, challenges, demands and continuous criticism of the architectural profession has led to increased demand for research into the improvement of design processes. The aims of this research were to determine the adequacy of design management processes used by Eastern Cape (EC) architectural companies and compare these with the design management processes used in manufacturing in order to establish practices, theories, principles, technologies and deliverables that can be transferred from the manufacturing into the construction to improve efficiency of architectural design management. The quantitative research approach was implemented for this research, the questionnaire was designed to acquire primary, factual and attitudinal data from EC architectural companies and secondary data were acquired through a literature review. The results revealed that design management processes, continuous improvement philosophies, lean principles, and Information and Communication Technology (ICT) used by EC architectural companies are not similar to those used in manufacturing. Therefore EC architectural companies could increase their efficiency by adopting some of the design management processes, ICT, continuous improvement philosophies and lean principles originating from the manufacturing industry.
- Full Text:
- Date Issued: 2008
- Authors: Sidloyi, Xabiso
- Date: 2008
- Subjects: Industrial design -- Management , Construction industry -- Management -- South Africa -- Eastern Cape , Architecture -- Management
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:9667 , http://hdl.handle.net/10948/766 , Industrial design -- Management , Construction industry -- Management -- South Africa -- Eastern Cape , Architecture -- Management
- Description: Design changes due to lack of constructability, cost overruns, delays and dissatisfied clients are but a few problems experienced in construction due to poor management of the design processes. Increased problems, challenges, demands and continuous criticism of the architectural profession has led to increased demand for research into the improvement of design processes. The aims of this research were to determine the adequacy of design management processes used by Eastern Cape (EC) architectural companies and compare these with the design management processes used in manufacturing in order to establish practices, theories, principles, technologies and deliverables that can be transferred from the manufacturing into the construction to improve efficiency of architectural design management. The quantitative research approach was implemented for this research, the questionnaire was designed to acquire primary, factual and attitudinal data from EC architectural companies and secondary data were acquired through a literature review. The results revealed that design management processes, continuous improvement philosophies, lean principles, and Information and Communication Technology (ICT) used by EC architectural companies are not similar to those used in manufacturing. Therefore EC architectural companies could increase their efficiency by adopting some of the design management processes, ICT, continuous improvement philosophies and lean principles originating from the manufacturing industry.
- Full Text:
- Date Issued: 2008
Mitigating risk through effective information technology operations in local governments : towards a best practice
- Authors: Kaselowski, Emile
- Date: 2008
- Subjects: Information technology -- South Africa , Local government -- South Africa -- Data processing
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9779 , http://hdl.handle.net/10948/776 , Information technology -- South Africa , Local government -- South Africa -- Data processing
- Description: Sound IT governance is becoming increasingly important for any public or private organisation. However, based on previous research, it can be argued that local municipalities in South Africa are seemingly struggling to implement sound IT governance practices. As a result, very few municipalities perform strategic IT planning and as many as 80percent of municipalities do not have a Master System Plan (MSP) in place, which is required by law. IT governance and corporate governance are lately viewed as one and no longer as two separate governance disciplines, because computer systems and electronic communication are more important now than ever for the survival of any organisation. Therefore, it is important for municipalities to streamline their efforts towards sound IT governance. There are limitations which are faced by municipalities that limit these efforts. Possibly the biggest contributing factor towards this current municipal IT governance predicament, among others, is the fact that there are very few, if any, guidelines and resources available to municipalities to aid them in implementing proper IT infrastructures, systems and governance procedures. To improve the current state of IT governance in municipalities, better guidelines and procedures are required. This dissertation presents an IT governance framework to meet this aforementioned requirement. It is tailored to the requirements of local municipalities and is based on the international best practice, the Control Objectives for Information and related Technologies (COBIT) and the ISO/IEC 17799 code of practice for information security management. This proposed framework takes into account the Municipal Systems Act (nr 32 of 2000), Municipal Structures Act (nr 117 of 1998) and annual municipal IT audit reports’ requirements. Research was conducted at a district and its underlying, local municipalities to determine the proper IT governance criteria for municipalities. Case studies were performed at the municipalities and consisted of performing literature studies on the available municipal legislation and annual, municipal IT audit reports, conducting COBIT gap analyses, an ISO 17799 analysis, conducting interviews and developing questionnaires and data capturing and presentation tools. The resultant, proposed IT governance framework, titled the IT strategic objective plan (IT-SOP), when implemented by a municipality, should provide a solid governance foundation on which to base its business processes on.
- Full Text:
- Date Issued: 2008
- Authors: Kaselowski, Emile
- Date: 2008
- Subjects: Information technology -- South Africa , Local government -- South Africa -- Data processing
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9779 , http://hdl.handle.net/10948/776 , Information technology -- South Africa , Local government -- South Africa -- Data processing
- Description: Sound IT governance is becoming increasingly important for any public or private organisation. However, based on previous research, it can be argued that local municipalities in South Africa are seemingly struggling to implement sound IT governance practices. As a result, very few municipalities perform strategic IT planning and as many as 80percent of municipalities do not have a Master System Plan (MSP) in place, which is required by law. IT governance and corporate governance are lately viewed as one and no longer as two separate governance disciplines, because computer systems and electronic communication are more important now than ever for the survival of any organisation. Therefore, it is important for municipalities to streamline their efforts towards sound IT governance. There are limitations which are faced by municipalities that limit these efforts. Possibly the biggest contributing factor towards this current municipal IT governance predicament, among others, is the fact that there are very few, if any, guidelines and resources available to municipalities to aid them in implementing proper IT infrastructures, systems and governance procedures. To improve the current state of IT governance in municipalities, better guidelines and procedures are required. This dissertation presents an IT governance framework to meet this aforementioned requirement. It is tailored to the requirements of local municipalities and is based on the international best practice, the Control Objectives for Information and related Technologies (COBIT) and the ISO/IEC 17799 code of practice for information security management. This proposed framework takes into account the Municipal Systems Act (nr 32 of 2000), Municipal Structures Act (nr 117 of 1998) and annual municipal IT audit reports’ requirements. Research was conducted at a district and its underlying, local municipalities to determine the proper IT governance criteria for municipalities. Case studies were performed at the municipalities and consisted of performing literature studies on the available municipal legislation and annual, municipal IT audit reports, conducting COBIT gap analyses, an ISO 17799 analysis, conducting interviews and developing questionnaires and data capturing and presentation tools. The resultant, proposed IT governance framework, titled the IT strategic objective plan (IT-SOP), when implemented by a municipality, should provide a solid governance foundation on which to base its business processes on.
- Full Text:
- Date Issued: 2008
Model selection for cointegrated relationships in small samples
- He, Wei
- Authors: He, Wei
- Date: 2008
- Subjects: Economics -- Statistical methods , Cointegration -- South Africa , Econometrics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10570 , http://hdl.handle.net/10948/971 , Economics -- Statistical methods , Cointegration -- South Africa , Econometrics
- Description: Vector autoregression models have become widely used research tools in the analysis of macroeconomic time series. Cointegrated techniques are an essential part of empirical macroeconomic research. They infer causal long-run relationships between nonstationary variables. In this study, six information criteria were reviewed and compared. The methods focused on determining the optimum information criteria for detecting the correct lag structure of a two-variable cointegrated process.
- Full Text:
- Date Issued: 2008
- Authors: He, Wei
- Date: 2008
- Subjects: Economics -- Statistical methods , Cointegration -- South Africa , Econometrics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10570 , http://hdl.handle.net/10948/971 , Economics -- Statistical methods , Cointegration -- South Africa , Econometrics
- Description: Vector autoregression models have become widely used research tools in the analysis of macroeconomic time series. Cointegrated techniques are an essential part of empirical macroeconomic research. They infer causal long-run relationships between nonstationary variables. In this study, six information criteria were reviewed and compared. The methods focused on determining the optimum information criteria for detecting the correct lag structure of a two-variable cointegrated process.
- Full Text:
- Date Issued: 2008
Monitoring population trends of introduced rusa deer (Cervus timorensis russa) in New Caledonian sclerophyll forests : tests and relevance of methods for management programmes
- Authors: Roques-Rogery, Guillaume
- Date: 2008
- Subjects: Cervus timorensis -- Caledon , Deer -- Management
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10750 , http://hdl.handle.net/10948/727 , Cervus timorensis -- Caledon , Deer -- Management
- Description: New Caledonia, an archipelago situated in the South-West Pacific Ocean has a very high biodiversity of which many flora and fauna species are endemic, and is therefore considered as one of the world hotspots for the biodiversity conservation. Sclerophyll forests, one of the five main vegetation types occurring on the island are mainly threatened by anthropogenic activities. Rusa deer (Cervus timorensis russa) were introduced into New Caledonia from Java in 1870. They have colonised all the biotopes of the main island, and represent one of the major threats to the New Caledonian sclerophyll forests. Currently, there is a lack of management tools to monitor the trends of rusa deer in New Caledonian sclerophyll forests. To test monitoring methods for use as management tools, six sclerophyll forests study sites were studied using direct census methods (i.e. spotlight count and drive count), indirect census methods (i.e. faecal standing crop method) and three indices (i.e. the faecal pellet groups index, the browsing index and the antler rubbing index). The faecal pellet groups index is based on sampling pellet groups in plots along transects. To ensure reliable data collection with a coefficient of variation of the mean number of intact faecal pellet groups per plot per transect of less than 20 percent, my study indicated that 15 plots per transect and 20 transects per sites should be sampled in New Caledonian sclerophyll forests whereas previous studies conducted in New Zealand indicated that a minimum of 25 plots per transect and of 18 transects per site should be sampled. The advantages of reducing the number of plots per transect and of transects per site is that it reduces the expenses (e.g. time, finance) and the bias due to data collection (e.g. fatigue, boredom and visual activity) which will improve the precision of the data recorded. Estimates of rusa deer density obtained from the census methods were not correlated (r = - 0.425, df = 4, P = 0.401) due to my small sample size. The reliability of these estimates is questionable because of biases. Previous publications have shown that biases are difficult to avoid when using direct census methods and that it is difficult to estimate the size of animal populations with accuracy and precision. The faecal standing crop method was subjected to bias because the estimation of the decay rate and the defecation rate were unreliable. These methods were not recommended for rusa deer management in New Caledonian sclerophyll forests. Of the three indices tested, the faecal pellet groups index and the browsing index based on unpalatable browse species were the most reliable as the confidence intervals of these two indices were small (i.e. from ±0.08 to ±0.11 for the faecal pellet groups index; from ±0.04 to ±0.27 for the browsing index of unpalatable browse species), and they also showed significant correlations with a subjective ranking of the rusa deer density based on expert knowledge (rs = 0.829, df = 4, P = 0.042 and rs = 0.829, df = 4, P = 0.042 respectively). These two indices appear to show the most promise for use as management tools, as they could reliably track local variations of rusa deer densities on the sclerophyll forests. These two indices could be used by wildlife technicians in New Caledonia to establish management plans of rusa deer populations which rely on participative management involving the stakeholders (e.g. hunters, forest managers, local communities). We believe that the faecal pellet groups index and the browsing index could be useful to monitor rusa deer populations in New Caledonian sclerophyll forests, and meet conservation and hunting objectives of the local population and authorities. Management tools such as culling and hunting operations will be implemented in New Caledonian sclerophyll forests where monitoring of indices I recommended show an increase in the deer population. Stakeholders will be involved in the implementation of the monitoring tools (i.e. indices) and of the management tools (e.g. culling and hunting operations, fencing) but also in decision making for the management of the rusa deer in New Caledonian sclerophyll forests.
- Full Text:
- Date Issued: 2008
- Authors: Roques-Rogery, Guillaume
- Date: 2008
- Subjects: Cervus timorensis -- Caledon , Deer -- Management
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10750 , http://hdl.handle.net/10948/727 , Cervus timorensis -- Caledon , Deer -- Management
- Description: New Caledonia, an archipelago situated in the South-West Pacific Ocean has a very high biodiversity of which many flora and fauna species are endemic, and is therefore considered as one of the world hotspots for the biodiversity conservation. Sclerophyll forests, one of the five main vegetation types occurring on the island are mainly threatened by anthropogenic activities. Rusa deer (Cervus timorensis russa) were introduced into New Caledonia from Java in 1870. They have colonised all the biotopes of the main island, and represent one of the major threats to the New Caledonian sclerophyll forests. Currently, there is a lack of management tools to monitor the trends of rusa deer in New Caledonian sclerophyll forests. To test monitoring methods for use as management tools, six sclerophyll forests study sites were studied using direct census methods (i.e. spotlight count and drive count), indirect census methods (i.e. faecal standing crop method) and three indices (i.e. the faecal pellet groups index, the browsing index and the antler rubbing index). The faecal pellet groups index is based on sampling pellet groups in plots along transects. To ensure reliable data collection with a coefficient of variation of the mean number of intact faecal pellet groups per plot per transect of less than 20 percent, my study indicated that 15 plots per transect and 20 transects per sites should be sampled in New Caledonian sclerophyll forests whereas previous studies conducted in New Zealand indicated that a minimum of 25 plots per transect and of 18 transects per site should be sampled. The advantages of reducing the number of plots per transect and of transects per site is that it reduces the expenses (e.g. time, finance) and the bias due to data collection (e.g. fatigue, boredom and visual activity) which will improve the precision of the data recorded. Estimates of rusa deer density obtained from the census methods were not correlated (r = - 0.425, df = 4, P = 0.401) due to my small sample size. The reliability of these estimates is questionable because of biases. Previous publications have shown that biases are difficult to avoid when using direct census methods and that it is difficult to estimate the size of animal populations with accuracy and precision. The faecal standing crop method was subjected to bias because the estimation of the decay rate and the defecation rate were unreliable. These methods were not recommended for rusa deer management in New Caledonian sclerophyll forests. Of the three indices tested, the faecal pellet groups index and the browsing index based on unpalatable browse species were the most reliable as the confidence intervals of these two indices were small (i.e. from ±0.08 to ±0.11 for the faecal pellet groups index; from ±0.04 to ±0.27 for the browsing index of unpalatable browse species), and they also showed significant correlations with a subjective ranking of the rusa deer density based on expert knowledge (rs = 0.829, df = 4, P = 0.042 and rs = 0.829, df = 4, P = 0.042 respectively). These two indices appear to show the most promise for use as management tools, as they could reliably track local variations of rusa deer densities on the sclerophyll forests. These two indices could be used by wildlife technicians in New Caledonia to establish management plans of rusa deer populations which rely on participative management involving the stakeholders (e.g. hunters, forest managers, local communities). We believe that the faecal pellet groups index and the browsing index could be useful to monitor rusa deer populations in New Caledonian sclerophyll forests, and meet conservation and hunting objectives of the local population and authorities. Management tools such as culling and hunting operations will be implemented in New Caledonian sclerophyll forests where monitoring of indices I recommended show an increase in the deer population. Stakeholders will be involved in the implementation of the monitoring tools (i.e. indices) and of the management tools (e.g. culling and hunting operations, fencing) but also in decision making for the management of the rusa deer in New Caledonian sclerophyll forests.
- Full Text:
- Date Issued: 2008
Negotiated cultural influence : a qualitative study of second year Chinese students at Nelson Mandela Metropolitan University in 2007 with specific reference to internet usage
- Authors: Yu, Yuanyuan
- Date: 2008
- Subjects: Internet in education , Internet -- Social aspects , Students, Foreign -- South Africa , Computer networks -- Social aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8375 , http://hdl.handle.net/10948/801 , Internet in education , Internet -- Social aspects , Students, Foreign -- South Africa , Computer networks -- Social aspects
- Description: This study aims to investigate the possible influence of Western culture on second-year Chinese students at the Nelson Mandela Metropolitan University (NMMU) in 2007 by focusing on their Internet usage. Roland Robertson’s theory of glocalization is employed as the theoretical framework in this study. The research design is qualitative in nature. Individual semi-structured interviews are the method of collecting research data while a thematic analysis is the means of analysing and interpreting the research data. The sample comprises twelve second-year Chinese students who are studying at the Nelson Mandela Metropolitan University (NMMU) in 2007 and have access to the Internet. This study has found that Western culture has exerted multi-faceted influences on the Chinese students through their Internet usage, and that they always negotiate such influences by selecting, adapting and appropriating what is useful in Western culture in an eclectic manner.
- Full Text:
- Date Issued: 2008
- Authors: Yu, Yuanyuan
- Date: 2008
- Subjects: Internet in education , Internet -- Social aspects , Students, Foreign -- South Africa , Computer networks -- Social aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8375 , http://hdl.handle.net/10948/801 , Internet in education , Internet -- Social aspects , Students, Foreign -- South Africa , Computer networks -- Social aspects
- Description: This study aims to investigate the possible influence of Western culture on second-year Chinese students at the Nelson Mandela Metropolitan University (NMMU) in 2007 by focusing on their Internet usage. Roland Robertson’s theory of glocalization is employed as the theoretical framework in this study. The research design is qualitative in nature. Individual semi-structured interviews are the method of collecting research data while a thematic analysis is the means of analysing and interpreting the research data. The sample comprises twelve second-year Chinese students who are studying at the Nelson Mandela Metropolitan University (NMMU) in 2007 and have access to the Internet. This study has found that Western culture has exerted multi-faceted influences on the Chinese students through their Internet usage, and that they always negotiate such influences by selecting, adapting and appropriating what is useful in Western culture in an eclectic manner.
- Full Text:
- Date Issued: 2008