Valuation of internet-based businesses
- Authors: Krüger, Janine
- Date: 2013
- Subjects: Electronic commerce , Internet marketing -- Evaluation , New business enterprises , Internet marketing , Retail trade -- Computer network resources , Teleshopping , Consumer behavior
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:9280 , http://hdl.handle.net/10948/d1008187 , Electronic commerce , Internet marketing -- Evaluation , New business enterprises , Internet marketing , Retail trade -- Computer network resources , Teleshopping , Consumer behavior
- Description: This study investigates the valuation of Internet-based businesses. In particular the influence of the implementation of an e-business strategy on the value of a business by focussing on its financial performance, will be determined. Although the valuation of businesses in general has been researched extensively, research on the valuation of Internet-based businesses produced contradictory findings. No consensus could be reached regarding the most appropriate valuation approach to be used. Some research findings indicated that the discounted cash flow approach was the most appropriate while others stipulated that a new valuation approach should be developed. Many authors state that the move to include an e-business strategy is natural, and that businesses cannot afford not to include some form of e-business strategy. Previous research has also shown that by including an e-business strategy, it is possible to improve efficiency of the business and ultimately increase profitability. However, there was no emphasis on how the e-business strategy will influence the business valuation. In order to establish whether an e-business strategy will create value for a business, an empirical investigation was undertaken.
- Full Text:
- Date Issued: 2013
- Authors: Krüger, Janine
- Date: 2013
- Subjects: Electronic commerce , Internet marketing -- Evaluation , New business enterprises , Internet marketing , Retail trade -- Computer network resources , Teleshopping , Consumer behavior
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:9280 , http://hdl.handle.net/10948/d1008187 , Electronic commerce , Internet marketing -- Evaluation , New business enterprises , Internet marketing , Retail trade -- Computer network resources , Teleshopping , Consumer behavior
- Description: This study investigates the valuation of Internet-based businesses. In particular the influence of the implementation of an e-business strategy on the value of a business by focussing on its financial performance, will be determined. Although the valuation of businesses in general has been researched extensively, research on the valuation of Internet-based businesses produced contradictory findings. No consensus could be reached regarding the most appropriate valuation approach to be used. Some research findings indicated that the discounted cash flow approach was the most appropriate while others stipulated that a new valuation approach should be developed. Many authors state that the move to include an e-business strategy is natural, and that businesses cannot afford not to include some form of e-business strategy. Previous research has also shown that by including an e-business strategy, it is possible to improve efficiency of the business and ultimately increase profitability. However, there was no emphasis on how the e-business strategy will influence the business valuation. In order to establish whether an e-business strategy will create value for a business, an empirical investigation was undertaken.
- Full Text:
- Date Issued: 2013
Value and size investment strategies: evidence from the cross-section of returns in the South African equity market
- Authors: Barnard, Kevin John
- Date: 2013
- Subjects: Financial risk -- South Africa , Saving and investment -- South Africa , Stock exchanges -- South Africa , Investments -- Psychological aspects , Investments -- Decision making , Value premium , Size effect , Rational finance , Behavioural finance , South African equity markets
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:874 , http://hdl.handle.net/10962/d1001606 , Financial risk -- South Africa , Saving and investment -- South Africa , Stock exchanges -- South Africa , Investments -- Psychological aspects , Investments -- Decision making
- Description: Value and size related equity investment strategies are supported by a large body of empirical research that shows a persistent premium, both longitudinally and crosssectionally. However, the competing rational and behavioural finance explanations for the success of these strategies are a subject of debate. The rational explanation is that the premium earned on value shares or shares of small companies can be attributed to higher risk. Behaviouralists argue that such shares are not riskier and attribute the premium to cognitive errors and biases in human decision making. The purpose of this study is to determine, firstly, whether the value and size premium exist in South Africa during the period July 2006 to June 2012, which includes one of the worst equity market crises in history. Secondly, this study sets out to determine whether the premium earned on value and size strategies are adequately explained by the principles of rational finance theory. To provide evidence regarding the existence of the value premium and size effect, returns are analysed, cross-sectionally, on portfolios of shares sorted by value and size. For evidence of a rational explanation, returns are regressed on value and size variables, and the relative riskiness of value and small companies is analysed. The results show evidence of a value premium in portfolios of small companies, but not big companies. The size effect is found not to be statistically significant. While regressions do show significant relationships between value and size variables and returns, these variables are found not to be associated with higher levels of risk. The conclusion is that the evidence does not support a rational, risk based explanation of the returns
- Full Text:
- Date Issued: 2013
- Authors: Barnard, Kevin John
- Date: 2013
- Subjects: Financial risk -- South Africa , Saving and investment -- South Africa , Stock exchanges -- South Africa , Investments -- Psychological aspects , Investments -- Decision making , Value premium , Size effect , Rational finance , Behavioural finance , South African equity markets
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:874 , http://hdl.handle.net/10962/d1001606 , Financial risk -- South Africa , Saving and investment -- South Africa , Stock exchanges -- South Africa , Investments -- Psychological aspects , Investments -- Decision making
- Description: Value and size related equity investment strategies are supported by a large body of empirical research that shows a persistent premium, both longitudinally and crosssectionally. However, the competing rational and behavioural finance explanations for the success of these strategies are a subject of debate. The rational explanation is that the premium earned on value shares or shares of small companies can be attributed to higher risk. Behaviouralists argue that such shares are not riskier and attribute the premium to cognitive errors and biases in human decision making. The purpose of this study is to determine, firstly, whether the value and size premium exist in South Africa during the period July 2006 to June 2012, which includes one of the worst equity market crises in history. Secondly, this study sets out to determine whether the premium earned on value and size strategies are adequately explained by the principles of rational finance theory. To provide evidence regarding the existence of the value premium and size effect, returns are analysed, cross-sectionally, on portfolios of shares sorted by value and size. For evidence of a rational explanation, returns are regressed on value and size variables, and the relative riskiness of value and small companies is analysed. The results show evidence of a value premium in portfolios of small companies, but not big companies. The size effect is found not to be statistically significant. While regressions do show significant relationships between value and size variables and returns, these variables are found not to be associated with higher levels of risk. The conclusion is that the evidence does not support a rational, risk based explanation of the returns
- Full Text:
- Date Issued: 2013
Vegetation and soil characteristics around water points under three land management systems in semi-arid rangelands of the Eastern Cape, South Africa
- Authors: Simanga, Siyabulela
- Date: 2013
- Subjects: Livestock -- Effect of water quality on -- South Africa -- Eastern Cape , Biodiversity conservation -- South Africa -- Eastern Cape , Range ecology -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Pasture Science)
- Identifier: vital:11584 , http://hdl.handle.net/10353/d1015795 , Livestock -- Effect of water quality on -- South Africa -- Eastern Cape , Biodiversity conservation -- South Africa -- Eastern Cape , Range ecology -- South Africa -- Eastern Cape
- Description: This study investigated the vegetation and soil characteristics in relation to distance from water points under different land management systems in semi-arid rangelands of South Africa. Six study sites, two each from communal grazing, commercial farming and game reserves were selected. Two watering points were selected in each study site. Two 500 m transects were laid from the selected watering points. Each transect was divided into sub-transects at 25 m, 50m, 100m, 200m, 300m and 500m from water points. A 100 m2 plot was marked in each sub-transect to record grass biomas, species composition, structure and distribution of woody vegetation and physical and chemical soil properties. Data were collected for two seasons 2012/13 (winter and summer). Thirty and 41 grass and woody species respectively were identified in all study areas. The most common and dominating grass species include Cynodon dactylon, Digitaria eriantha, Eragrostis obtusa, Setaria sphacelata and Sporobolus fimbriatus. Cynodon dactylon and S. sphacelata occurred more abundantly (p < 0.05) in the game reserves than in the other land management catergories. All the grass species had similar (p > 0.05) abundance along distance gradient from water points. Grass dry matter (GDM) showed significant differences (p < 0.05) between and within land management systems. However, GDM was not significantly affected by season, location of water point within each farm or reserve and distance along water points. Acacia karoo, Coddia rudis and Ehretia rigida were the most dominant woody species. Tree equivalent (TE) density of all encroaching woody plants combined was significantly (p < 0.05) higher on the communal area (1732 TE ha-1) than the commercial ranches (1136 TE ha-1) and game reserves (857 TE ha-1), but with no marked variations along distance from water points under all the land management systems. The electric conductivity (EC) was significantly (P < 0.01) higher in game reserves than in communal grazing areas and ranches. Soil organic matter percentage showed greatest and lowest values in the game reserves and commercial respectively. Soil pH and bulk density did not vary but soil organic matter (SOM), EC, bulk density and soil compaction were significant different with no increasing or decreasing trends. Soil properties were affected by herbivore pressure and trampling around water points with inconsistence magnitude and direction. In conclusion, grass species composition and GDM did not respond to distance from water points because either grazing gradient was absent or the length of transects was not enough to explain the absence or presence of gradients. High proportion of A. karoo and high densities of seedlings and saplings would seem as very good indicators of the woody vegetation changes in the different land management systems and distance from water points. The soil quality indicators around the water-points showed that livestock and game affected soil parameters.
- Full Text:
- Date Issued: 2013
- Authors: Simanga, Siyabulela
- Date: 2013
- Subjects: Livestock -- Effect of water quality on -- South Africa -- Eastern Cape , Biodiversity conservation -- South Africa -- Eastern Cape , Range ecology -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Pasture Science)
- Identifier: vital:11584 , http://hdl.handle.net/10353/d1015795 , Livestock -- Effect of water quality on -- South Africa -- Eastern Cape , Biodiversity conservation -- South Africa -- Eastern Cape , Range ecology -- South Africa -- Eastern Cape
- Description: This study investigated the vegetation and soil characteristics in relation to distance from water points under different land management systems in semi-arid rangelands of South Africa. Six study sites, two each from communal grazing, commercial farming and game reserves were selected. Two watering points were selected in each study site. Two 500 m transects were laid from the selected watering points. Each transect was divided into sub-transects at 25 m, 50m, 100m, 200m, 300m and 500m from water points. A 100 m2 plot was marked in each sub-transect to record grass biomas, species composition, structure and distribution of woody vegetation and physical and chemical soil properties. Data were collected for two seasons 2012/13 (winter and summer). Thirty and 41 grass and woody species respectively were identified in all study areas. The most common and dominating grass species include Cynodon dactylon, Digitaria eriantha, Eragrostis obtusa, Setaria sphacelata and Sporobolus fimbriatus. Cynodon dactylon and S. sphacelata occurred more abundantly (p < 0.05) in the game reserves than in the other land management catergories. All the grass species had similar (p > 0.05) abundance along distance gradient from water points. Grass dry matter (GDM) showed significant differences (p < 0.05) between and within land management systems. However, GDM was not significantly affected by season, location of water point within each farm or reserve and distance along water points. Acacia karoo, Coddia rudis and Ehretia rigida were the most dominant woody species. Tree equivalent (TE) density of all encroaching woody plants combined was significantly (p < 0.05) higher on the communal area (1732 TE ha-1) than the commercial ranches (1136 TE ha-1) and game reserves (857 TE ha-1), but with no marked variations along distance from water points under all the land management systems. The electric conductivity (EC) was significantly (P < 0.01) higher in game reserves than in communal grazing areas and ranches. Soil organic matter percentage showed greatest and lowest values in the game reserves and commercial respectively. Soil pH and bulk density did not vary but soil organic matter (SOM), EC, bulk density and soil compaction were significant different with no increasing or decreasing trends. Soil properties were affected by herbivore pressure and trampling around water points with inconsistence magnitude and direction. In conclusion, grass species composition and GDM did not respond to distance from water points because either grazing gradient was absent or the length of transects was not enough to explain the absence or presence of gradients. High proportion of A. karoo and high densities of seedlings and saplings would seem as very good indicators of the woody vegetation changes in the different land management systems and distance from water points. The soil quality indicators around the water-points showed that livestock and game affected soil parameters.
- Full Text:
- Date Issued: 2013
Veracity, transparency and inclusivity plus engagement and empowerment: regulations, ethics, accountability
- Authors: Dugmore, Harry , Smith, Jade
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158564 , vital:40207 , https://hdl.handle.net/10520/EJC141577
- Description: As a centre with a brief to encourage "more and better" health journalism in South Africa, we've had to think hard about definitional issues and about balancing subjective and objective gauges of quality. We've developed an initial appraisal of health journalism, locally and internationally, and we've created a normative framework that we hope will enable journalists and educators to have better discussions about what is meant by quality in health journalism. This framework will hopefully inform what kind of journalism education - degrees, short courses, topic guides, symposia - might promote higher levels of quality in reporting on medical science.
- Full Text:
- Date Issued: 2013
- Authors: Dugmore, Harry , Smith, Jade
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158564 , vital:40207 , https://hdl.handle.net/10520/EJC141577
- Description: As a centre with a brief to encourage "more and better" health journalism in South Africa, we've had to think hard about definitional issues and about balancing subjective and objective gauges of quality. We've developed an initial appraisal of health journalism, locally and internationally, and we've created a normative framework that we hope will enable journalists and educators to have better discussions about what is meant by quality in health journalism. This framework will hopefully inform what kind of journalism education - degrees, short courses, topic guides, symposia - might promote higher levels of quality in reporting on medical science.
- Full Text:
- Date Issued: 2013
Versions of hospitality in recent writing on the fiction of JM Coetzee:
- Authors: Marais, Mike
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144039 , vital:38305 , DOI: 10.4314/eia.v40i1.8
- Description: In one of the interviews in Summertime, Martin, a former colleague, claims that he and the deceased John Coetzee felt their "presence" in South Africa "was legal but illegitimate," that it "was grounded in a crime, namely colonial conquest," which rendered them "sojourners, temporary residents, and to that extent without a home, without a homeland" (209-10). With this statement in mind, Maria J. Lopez argues that a sense of unbelonging underlies J. M. Coetzee's entire oeuvre, including the Australian fiction, and forms a kind of "imaginative and intellectual masterplot" (xii). ). It is this "narrative" that she traces in her monograph, starting with the early fiction and concluding with chapters on the fictionalised autobiographies and Australian fiction.
- Full Text:
- Date Issued: 2013
- Authors: Marais, Mike
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144039 , vital:38305 , DOI: 10.4314/eia.v40i1.8
- Description: In one of the interviews in Summertime, Martin, a former colleague, claims that he and the deceased John Coetzee felt their "presence" in South Africa "was legal but illegitimate," that it "was grounded in a crime, namely colonial conquest," which rendered them "sojourners, temporary residents, and to that extent without a home, without a homeland" (209-10). With this statement in mind, Maria J. Lopez argues that a sense of unbelonging underlies J. M. Coetzee's entire oeuvre, including the Australian fiction, and forms a kind of "imaginative and intellectual masterplot" (xii). ). It is this "narrative" that she traces in her monograph, starting with the early fiction and concluding with chapters on the fictionalised autobiographies and Australian fiction.
- Full Text:
- Date Issued: 2013
Victimisation in the lives of lesbian-identified women in South Africa : implications for clinical assessment and treatment
- Padmanabhanunni, A, Edwards, David J A
- Authors: Padmanabhanunni, A , Edwards, David J A
- Date: 2013
- Language: English
- Type: Article
- Identifier: vital:6237 , http://hdl.handle.net/10962/d1007787
- Description: Few clinical studies have examined victimisation in the lives of lesbian women in South Africa and whether there are distinct implications for psychological treatment. This paper presents the assessment and treatment of a lesbian-identified South African survivor of childhood sexual abuse who, as an adult, was raped and later gang raped. Her victimisation in adulthood represented ‘corrective rape’ motivated by the prejudiced assumption that the sexuality of lesbian women is pathological and should be ‘corrected’ through rape. This paper lends insights into the role of heterosexism in shaping vulnerability to victimisation and the process of recovery. It provides recommendations for work with sexual minority clients and highlights the implications when there is an absence of safety and support in the external environment.
- Full Text:
- Date Issued: 2013
- Authors: Padmanabhanunni, A , Edwards, David J A
- Date: 2013
- Language: English
- Type: Article
- Identifier: vital:6237 , http://hdl.handle.net/10962/d1007787
- Description: Few clinical studies have examined victimisation in the lives of lesbian women in South Africa and whether there are distinct implications for psychological treatment. This paper presents the assessment and treatment of a lesbian-identified South African survivor of childhood sexual abuse who, as an adult, was raped and later gang raped. Her victimisation in adulthood represented ‘corrective rape’ motivated by the prejudiced assumption that the sexuality of lesbian women is pathological and should be ‘corrected’ through rape. This paper lends insights into the role of heterosexism in shaping vulnerability to victimisation and the process of recovery. It provides recommendations for work with sexual minority clients and highlights the implications when there is an absence of safety and support in the external environment.
- Full Text:
- Date Issued: 2013
Visualization of a data leak
- Swart, Ignus, Grobler, Marthie, Irwin, Barry V W
- Authors: Swart, Ignus , Grobler, Marthie , Irwin, Barry V W
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428584 , vital:72522 , 10.1109/ISSA.2013.6641046
- Description: The potential impact that data leakage can have on a country, both on a national level as well as on an individual level, can be wide reaching and potentially catastrophic. In January 2013, several South African companies became the target of a hack attack, resulting in the breach of security measures and the leaking of a claimed 700000 records. The affected companies are spread across a number of domains, thus making the leak a very wide impact area. The aim of this paper is to analyze the data released from the South African breach and to visualize the extent of the loss by the companies affected. The value of this work lies in its connection to and interpretation of related South African legislation. The data extracted during the analysis is primarily personally identifiable information, such as defined by the Electronic Communications and Transactions Act of 2002 and the Protection of Personal Information Bill of 2009.
- Full Text:
- Date Issued: 2013
- Authors: Swart, Ignus , Grobler, Marthie , Irwin, Barry V W
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428584 , vital:72522 , 10.1109/ISSA.2013.6641046
- Description: The potential impact that data leakage can have on a country, both on a national level as well as on an individual level, can be wide reaching and potentially catastrophic. In January 2013, several South African companies became the target of a hack attack, resulting in the breach of security measures and the leaking of a claimed 700000 records. The affected companies are spread across a number of domains, thus making the leak a very wide impact area. The aim of this paper is to analyze the data released from the South African breach and to visualize the extent of the loss by the companies affected. The value of this work lies in its connection to and interpretation of related South African legislation. The data extracted during the analysis is primarily personally identifiable information, such as defined by the Electronic Communications and Transactions Act of 2002 and the Protection of Personal Information Bill of 2009.
- Full Text:
- Date Issued: 2013
Vital threats to human security in Southern Africa : the regional ramifications of the public health crisis in Zimbabwe
- Authors: Mtero, Shingirai
- Date: 2013
- Subjects: Human security -- Africa, Southern , Communicable diseases -- Africa, Southern , Public health -- Zimbabwe , Poverty -- Africa, Southern
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2891 , http://hdl.handle.net/10962/d1018251
- Description: The southern African region is beset with numerous security concerns: pervasive poverty, deepening inequality, starvation, contamination of essential natural resources, violent crime and state oppression. However, the most vital of the region’s security concerns in the 21st century is the spread of infectious disease. The region shoulders a disproportionate amount of the continent’s infectious disease burden, with diseases such as HIV/AIDS, tuberculosis and malaria claiming more lives every year than any other factor. The nature of these diseases and their propensity to spread, coupled with inadequate regional public health structures pose a significant threat to regional security and stability. The study asserts that southern Africa’s security concerns are most appropriately characterised under the paradigm of Human Security. It further asserts that if such vital threats to human security are not adequately managed they have the ability to permeate across state borders, spelling numerous negative ramifications for the region. To this end, the study details the public health crisis in Zimbabwe and its effects on regional security and stability in southern Africa. An enduring political and economic collapse in Zimbabwe led to the dramatic deterioration of its public health sector, the concomitant mass migration of Zimbabwean nationals across the region presented a unique and complex challenge to the Southern African Development Community (SADC) and its member states. As the premier regional governance institution, SADC has failed to adequately mobilise its structures and member states to respond to the challenges resulting from the public health crisis in Zimbabwe. The study explores the factors accounting for this regional inertia, and asserts that while infectious diseases are at present the most vital of the human security threats, similar threats to human security have the potential to affect the region if SADC fails to recognise and prioritise threats to human security as legitimate regional security concerns.
- Full Text:
- Date Issued: 2013
- Authors: Mtero, Shingirai
- Date: 2013
- Subjects: Human security -- Africa, Southern , Communicable diseases -- Africa, Southern , Public health -- Zimbabwe , Poverty -- Africa, Southern
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2891 , http://hdl.handle.net/10962/d1018251
- Description: The southern African region is beset with numerous security concerns: pervasive poverty, deepening inequality, starvation, contamination of essential natural resources, violent crime and state oppression. However, the most vital of the region’s security concerns in the 21st century is the spread of infectious disease. The region shoulders a disproportionate amount of the continent’s infectious disease burden, with diseases such as HIV/AIDS, tuberculosis and malaria claiming more lives every year than any other factor. The nature of these diseases and their propensity to spread, coupled with inadequate regional public health structures pose a significant threat to regional security and stability. The study asserts that southern Africa’s security concerns are most appropriately characterised under the paradigm of Human Security. It further asserts that if such vital threats to human security are not adequately managed they have the ability to permeate across state borders, spelling numerous negative ramifications for the region. To this end, the study details the public health crisis in Zimbabwe and its effects on regional security and stability in southern Africa. An enduring political and economic collapse in Zimbabwe led to the dramatic deterioration of its public health sector, the concomitant mass migration of Zimbabwean nationals across the region presented a unique and complex challenge to the Southern African Development Community (SADC) and its member states. As the premier regional governance institution, SADC has failed to adequately mobilise its structures and member states to respond to the challenges resulting from the public health crisis in Zimbabwe. The study explores the factors accounting for this regional inertia, and asserts that while infectious diseases are at present the most vital of the human security threats, similar threats to human security have the potential to affect the region if SADC fails to recognise and prioritise threats to human security as legitimate regional security concerns.
- Full Text:
- Date Issued: 2013
Voice and agency in post-apartheid South African media: young and mediated
- Wasserman, Herman, Garman, Anthea
- Authors: Wasserman, Herman , Garman, Anthea
- Date: 2013
- Language: English
- Type: text , article
- Identifier: vital:38361 , http://hdl.handle.net/10520/EJC141607
- Description: What does the rising number of service delivery protests tell us about who gets to speak and who gets to listen in South African politics? Do politicians listen to the youth, especially the vast numbers of the un- and under-employed? What role do the youth play in social cohesion, civic action and the future of our young democracy?
- Full Text:
- Date Issued: 2013
- Authors: Wasserman, Herman , Garman, Anthea
- Date: 2013
- Language: English
- Type: text , article
- Identifier: vital:38361 , http://hdl.handle.net/10520/EJC141607
- Description: What does the rising number of service delivery protests tell us about who gets to speak and who gets to listen in South African politics? Do politicians listen to the youth, especially the vast numbers of the un- and under-employed? What role do the youth play in social cohesion, civic action and the future of our young democracy?
- Full Text:
- Date Issued: 2013
Voices of the hungry: a qualitative measure of household food access and food insecurity in South Africa
- Chakona, Gamuchirai, Shackleton, Charlie M
- Authors: Chakona, Gamuchirai , Shackleton, Charlie M
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67277 , vital:29066 , https://doi.org/10.1186/s40066-017-0149-x
- Description: publisher version , Background: South Africa is rated a food secure nation, but large numbers of households within the country have inadequate access to nutrient-rich diverse foods. The study sought to investigate households’ physical and economic access and availability of food, in relation to local context which influences households’ access to and ability to grow food which may affect the dietary quality. We sought to understand self-reported healthy diets, food insecurity from the perspective of people who experienced it, barriers to household food security and perceptions and feelings on food access as well as strategies households use to cope with food shortages and their perceptions on improving household food security. Methods: Focus group discussions were conducted along a rural–urban continuum in three South African towns situated along an agro-ecological gradient. Participants were asked about their knowledge of healthy diets, factors influencing their food consumption, their perceptions regarding food insecurity, barriers to food security, coping strategies and solutions to improve access to nutrient-rich foods. Results: A total of 91 people participated in 11 focus groups, with 76% females. The majority of participants aged between 31 and 50 years. Participants were knowledgeable about healthy diets but had limited access to it hence consumed monotonous diets. The perceptions provided insights into the pressing issues of inadequate access to food, food insecurity, coping strategies and ideas on improving food security. The majority of participants reported on experiencing food insecurity and female-headed households, unemployed and orphaned children were most vulnerable. Focus group participants highlighted the complexity of the food system in their communities which relies on own production, collecting from open spaces, donations and to a larger extent purchase, in the context of unemployment, low income, water and land shortages as well as theft. Conclusion: The results provide a significant contribution from a needs assessment perspective from the communities, identify “hidden” constrains in household food access and provide effective future solutions for improving food security in the communities. Government should assist with capacity building, employment creation and providing resources (especially, land and water) for communities to practise agriculture which they all agreed can improve food security.
- Full Text:
- Date Issued: 2013
- Authors: Chakona, Gamuchirai , Shackleton, Charlie M
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67277 , vital:29066 , https://doi.org/10.1186/s40066-017-0149-x
- Description: publisher version , Background: South Africa is rated a food secure nation, but large numbers of households within the country have inadequate access to nutrient-rich diverse foods. The study sought to investigate households’ physical and economic access and availability of food, in relation to local context which influences households’ access to and ability to grow food which may affect the dietary quality. We sought to understand self-reported healthy diets, food insecurity from the perspective of people who experienced it, barriers to household food security and perceptions and feelings on food access as well as strategies households use to cope with food shortages and their perceptions on improving household food security. Methods: Focus group discussions were conducted along a rural–urban continuum in three South African towns situated along an agro-ecological gradient. Participants were asked about their knowledge of healthy diets, factors influencing their food consumption, their perceptions regarding food insecurity, barriers to food security, coping strategies and solutions to improve access to nutrient-rich foods. Results: A total of 91 people participated in 11 focus groups, with 76% females. The majority of participants aged between 31 and 50 years. Participants were knowledgeable about healthy diets but had limited access to it hence consumed monotonous diets. The perceptions provided insights into the pressing issues of inadequate access to food, food insecurity, coping strategies and ideas on improving food security. The majority of participants reported on experiencing food insecurity and female-headed households, unemployed and orphaned children were most vulnerable. Focus group participants highlighted the complexity of the food system in their communities which relies on own production, collecting from open spaces, donations and to a larger extent purchase, in the context of unemployment, low income, water and land shortages as well as theft. Conclusion: The results provide a significant contribution from a needs assessment perspective from the communities, identify “hidden” constrains in household food access and provide effective future solutions for improving food security in the communities. Government should assist with capacity building, employment creation and providing resources (especially, land and water) for communities to practise agriculture which they all agreed can improve food security.
- Full Text:
- Date Issued: 2013
Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline
- Authors: Kruid, Jan
- Date: 2013
- Subjects: Voltammetry , Electrodes , Oxytetracycline , Carbon nanotubes
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4156 , http://hdl.handle.net/10962/d1018238
- Description: Oxytetracycline (OTC) is a broad spectrum antibiotic used extensively in the agricultural and human-health sector, and is effective against various gram positive and –negative bacteria as well as large viruses and certain pathogenic Rickettsiae. This study addresses the lack of voltammetric knowledge regarding the electroanalytical characterisation of OTC and its analysis in complex matrices. Cyclic voltammetry (CV) revealed several irreversible anodic peaks for OTC at a bare glassy carbon electrode (GCE). These current responses were improved through the selection of a diluent for OTC stock preparation, electrolyte solution and electrolyte pH, stir time and applied preconditioning potential. Under enhanced adsorptive conditions and using square wave voltammetry (SWV), a detection limit of 24.3 nM was achieved. The electrode surface could be renewed in vitro for 10 successive scans. OTC oxidation was characterised as a one electron:one proton ECiE mechanisms. Next, investigating the viability of voltammetry in various complex microbiological growth media revealed that selected growth media contained interfering redox active components, which, while simultaneously coating the electrode surface, effectively reduced GCE performance and lowered the active electrode surface area, as ascertained through CV and electrochemical impedance spectroscopy (EIS) studies. This interference lowered OTC current response in the presence of growth media which was partially recovered by appropriate growth media selection and sample dilution. In testing the use of acid functionalised multi-walled carbon nanotubes (MWCNTs) to improve anodic OTC response, charge-based attraction was observed between the MWCNT dispersal agent Nafion® and OTC, while increased surface area associated with prolonged acid functionalisation time aided in improving OTC current response.
- Full Text:
- Date Issued: 2013
- Authors: Kruid, Jan
- Date: 2013
- Subjects: Voltammetry , Electrodes , Oxytetracycline , Carbon nanotubes
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4156 , http://hdl.handle.net/10962/d1018238
- Description: Oxytetracycline (OTC) is a broad spectrum antibiotic used extensively in the agricultural and human-health sector, and is effective against various gram positive and –negative bacteria as well as large viruses and certain pathogenic Rickettsiae. This study addresses the lack of voltammetric knowledge regarding the electroanalytical characterisation of OTC and its analysis in complex matrices. Cyclic voltammetry (CV) revealed several irreversible anodic peaks for OTC at a bare glassy carbon electrode (GCE). These current responses were improved through the selection of a diluent for OTC stock preparation, electrolyte solution and electrolyte pH, stir time and applied preconditioning potential. Under enhanced adsorptive conditions and using square wave voltammetry (SWV), a detection limit of 24.3 nM was achieved. The electrode surface could be renewed in vitro for 10 successive scans. OTC oxidation was characterised as a one electron:one proton ECiE mechanisms. Next, investigating the viability of voltammetry in various complex microbiological growth media revealed that selected growth media contained interfering redox active components, which, while simultaneously coating the electrode surface, effectively reduced GCE performance and lowered the active electrode surface area, as ascertained through CV and electrochemical impedance spectroscopy (EIS) studies. This interference lowered OTC current response in the presence of growth media which was partially recovered by appropriate growth media selection and sample dilution. In testing the use of acid functionalised multi-walled carbon nanotubes (MWCNTs) to improve anodic OTC response, charge-based attraction was observed between the MWCNT dispersal agent Nafion® and OTC, while increased surface area associated with prolonged acid functionalisation time aided in improving OTC current response.
- Full Text:
- Date Issued: 2013
Vrou is gif : the representation of violence against women in Margie Orford’s Clare Hart novels
- Authors: Naidu, Samantha
- Date: 2013
- Language: English
- Type: Article , text
- Identifier: vital:26372 , http://hdl.handle.net/10962/53997 , https://www.ajol.info/index.php/asp/article/view/136092 , https://orcid.org/0000-0001-9456-8657
- Description: This article takes as its starting point that crime fiction is a public and political response to gender-based violence. Using the methods of both discourse analysis and literary analysis of the crime fiction genre, the novels of Margie Orford, internationally acclaimed crime author and patron of Rape Crisis, are examined for their representations of violence against women, and the role played by these representations in Orford’s overall feminist project in the Clare Hart series. The article also considers theories about gender-based violence which link male violence to a purported crisis in the established gender order of South Africa. An attempt is made to understand the relationship between fictionalised representations of violence and the ‘banality’ of real-life violence. Finally, Hart, Orford’s hard-boiled female detective figure, is assessed to determine whether this character constitutes a significant feminist achievement that contributes to discourses which counter gender-based violence
- Full Text: false
- Date Issued: 2013
- Authors: Naidu, Samantha
- Date: 2013
- Language: English
- Type: Article , text
- Identifier: vital:26372 , http://hdl.handle.net/10962/53997 , https://www.ajol.info/index.php/asp/article/view/136092 , https://orcid.org/0000-0001-9456-8657
- Description: This article takes as its starting point that crime fiction is a public and political response to gender-based violence. Using the methods of both discourse analysis and literary analysis of the crime fiction genre, the novels of Margie Orford, internationally acclaimed crime author and patron of Rape Crisis, are examined for their representations of violence against women, and the role played by these representations in Orford’s overall feminist project in the Clare Hart series. The article also considers theories about gender-based violence which link male violence to a purported crisis in the established gender order of South Africa. An attempt is made to understand the relationship between fictionalised representations of violence and the ‘banality’ of real-life violence. Finally, Hart, Orford’s hard-boiled female detective figure, is assessed to determine whether this character constitutes a significant feminist achievement that contributes to discourses which counter gender-based violence
- Full Text: false
- Date Issued: 2013
Waiver of the right to judicial impartiality: comparative analysis of South African and Commonwealth jurisprudence
- Okpaluba, Chuks, Juma, Laurence
- Authors: Okpaluba, Chuks , Juma, Laurence
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/127138 , vital:35960 , https://0-hdl.handle.net.wam.seals.ac.za/10520/EJC153154
- Description: This paper investigates whether judicial independence and impartiality entrenched in written constitutions and recognised by the common law as fundamental requirements of fair administration of justice can be subjected to the private law principles of waiver, estoppel or acquiescence. In an attempt to answer this question, the paper suggests that the starting point should be the interrogation of whether the right alleged to be waived emanates from the constitution or administrative law. At common law, a right can be waived, insofar as the party involved had knowledge of the right and failed to assert it.
- Full Text: false
- Date Issued: 2013
- Authors: Okpaluba, Chuks , Juma, Laurence
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/127138 , vital:35960 , https://0-hdl.handle.net.wam.seals.ac.za/10520/EJC153154
- Description: This paper investigates whether judicial independence and impartiality entrenched in written constitutions and recognised by the common law as fundamental requirements of fair administration of justice can be subjected to the private law principles of waiver, estoppel or acquiescence. In an attempt to answer this question, the paper suggests that the starting point should be the interrogation of whether the right alleged to be waived emanates from the constitution or administrative law. At common law, a right can be waived, insofar as the party involved had knowledge of the right and failed to assert it.
- Full Text: false
- Date Issued: 2013
Walking the (social media) line: regulations, ethics, accountability
- Authors: Mathurine, Jude
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158576 , vital:40208 , https://hdl.handle.net/10520/EJC141581
- Description: Journalists are moving from the margins to the mainstream. While media organisations wrap their heads around social media strategies, editors and reporters struggle to keep pace with changing policies, laws and practice.
- Full Text:
- Date Issued: 2013
- Authors: Mathurine, Jude
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158576 , vital:40208 , https://hdl.handle.net/10520/EJC141581
- Description: Journalists are moving from the margins to the mainstream. While media organisations wrap their heads around social media strategies, editors and reporters struggle to keep pace with changing policies, laws and practice.
- Full Text:
- Date Issued: 2013
Walking The Other Side: Doung Anwar Jahangeer
- Authors: Simbao, Ruth K
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147681 , vital:38660 , https://0-doi.org.wam.seals.ac.za/10.1080/09528822.2013.796204
- Description: While certain forms of mobility are romanticized in the privileged worlds of art and academia, the need to move is often triggered by vulnerability, and literal pathways on the ground reveal much about human engagement with place. This article considers the work of Mauritian-born architect/artist/performer Doung Anwar Jahangeer who is based in Durban, South Africa. Inspired by Michel de Certeau, Jahangeer argues that pathways reveal the characteristics of society and uses the act of walking to question the degree to which meaningful transformation has taken place in South Africa. His City Walk performances disclose to audiences how grounded ways of engaging with movement can challenge the metaphoric blindness that handicaps privileged movement. Focusing on his performances from the 2012 ‘Making Way’ exhibition the author interprets Jahangeer's work as challenging blind spots with regard to space, particularly partial spaces still marred by Apartheid. Through performative walking he encourages his audiences to read between the lines of road markings, cracks and signs, and to experience the power of corporeally engaging with the road by thoughtfully placing one foot in front of the other as a mode of seeing.
- Full Text:
- Date Issued: 2013
- Authors: Simbao, Ruth K
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147681 , vital:38660 , https://0-doi.org.wam.seals.ac.za/10.1080/09528822.2013.796204
- Description: While certain forms of mobility are romanticized in the privileged worlds of art and academia, the need to move is often triggered by vulnerability, and literal pathways on the ground reveal much about human engagement with place. This article considers the work of Mauritian-born architect/artist/performer Doung Anwar Jahangeer who is based in Durban, South Africa. Inspired by Michel de Certeau, Jahangeer argues that pathways reveal the characteristics of society and uses the act of walking to question the degree to which meaningful transformation has taken place in South Africa. His City Walk performances disclose to audiences how grounded ways of engaging with movement can challenge the metaphoric blindness that handicaps privileged movement. Focusing on his performances from the 2012 ‘Making Way’ exhibition the author interprets Jahangeer's work as challenging blind spots with regard to space, particularly partial spaces still marred by Apartheid. Through performative walking he encourages his audiences to read between the lines of road markings, cracks and signs, and to experience the power of corporeally engaging with the road by thoughtfully placing one foot in front of the other as a mode of seeing.
- Full Text:
- Date Issued: 2013
Waste management in the pharmaceutical industry : an evaluation report of Dr Reddy's Laboratories
- Authors: Letsitsi, Ezekiel Tebogo
- Date: 2013
- Subjects: Pharmaceutical industry -- Waste disposal -- Case studies Hazardous wastes -- Management -- South Africa Hazardous wastes -- Management -- Law and legislation -- South Africa , Dr Reddy's Laboratories
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:718 , http://hdl.handle.net/10962/d1001872
- Description: The pharmaceutical industry must worry about managing pharmaceutical waste as it poses a health risk to human beings and its presence in the environment can also contribute to loss of biodiversity. Ngwuluka, Ochekpe, and Odumosu (2011: 11259) state that “Pharmaceuticals, though used to treat and manage diseases, are poisons, which justify the growing concerns about their presence in the environment.” Various forms of pharmaceutical waste exist, Ngwuluka et al. (2011) identified the following forms of pharmaceutical waste: Expired dosage forms, non-reworkable formulations, spilled pharmaceuticals, rejected active pharmaceutical ingredients, expired active pharmaceutical ingredients, and wastewater resulting from the water used for process operations during manufacturing and could come from the water used to clean equipment, pipes and floors, and would contain amongst other materials, chemicals and active pharmaceutical ingredients (APIs). A review on the pharmaceutical industry and the progress they have made in environmental management by generating health, safety and environmental programs, preventing pollution, waste minimization, recycling and reusing materials, investing in projects and facilities to ensure environmental sustainability have been established (Berry & Rondinelli, 2000). Dr. Reddy’s Laboratories is an Indian based pharmaceutical company which imports, markets and sells medicines in South Africa. Dr. Reddy’s has plans to set up a manufacturing plant in South Africa. The purpose of this study is to research waste management practices at Dr. Reddy’s plant in India and to draw parallels between India’s and South Africa’s waste legislation. This is to enable Dr. Reddy’s to review all aspects of its waste management systems, in order to revise where necessary and to improve the overall achievement of its waste management objectives in order to become a more sustainable organisation and to meet South African Waste legislation before setting up a plant in South Africa. 3 ii. Objective of the Evaluation Report The purpose of this research is to evaluate and analyse the development and implementation of a waste management system in a pharmaceutical company, specifically Dr. Reddy’s Laboratories. This is primarily to enable the company to review and analyse all aspects of waste management pertaining to pharmaceutical manufacturing and to revise or improve where necessary to ensure adherence to waste regulations as outlined by government. The following research goals have been also been identified: To identify and describe waste management practices at Dr. Reddy’s Laboratories, on the inherent assumption by the researcher that the company has a successful waste management strategy that would need to be reviewed to identify areas of improvement before expanding manufacturing facilities into South Africa. To evaluate, assess and compare similarities and/or differences between the identified South African Legislation for Waste Management with those identified during research conducted at Dr. Reddy’s iii. Importance of the Research Conducted Waste Management is important in that it not only removes from the environment, substances that can be harmful to humans and animals but it also enables an organisation to be more sustainable. According to Seadon (2010: i) “Integrated waste management is considered from a systems’ approach, with a particular emphasis on advancing sustainability”. The study will provide guidance to senior management, shop floor managers and employees who work in Dr. Reddy’s manufacturing plants as well as overall employees at Dr. Reddy’s on how to successfully implement a Waste Management programme to enhance sustainability at the organisation and realise the benefits to the organisation of being more sustainable. Weybrecht (2010) identified the following benefits that companies could gain by adopting sustainable waste management practices: reduced costs, resource preservation, keeping up with legislation, enhanced reputation, business differentiation from competitors, and attraction and retention of quality employees, and customer need satisfaction amongst many other benefits. This research needs to address the gap in analysing waste management practices (with more emphasis on waste treatment, waste minimisation, re-use, recycling and disposal), and implementation and understanding of waste management in the pharmaceutical industry as prior research was done mostly in other chemical industries and not to a large scale in the pharmaceutical industry. South African Waste Legislation, Indian Waste Legislation (as Dr. Reddy’s is based in India), as well as International Pharmaceutical Waste Management Guidelines, and International Pharmaceutical Good Manufacturing Practices provide a framework and benchmark of leading pharmaceutical waste management practices that can guide Dr. Reddy’s Laboratories’ leadership into integrating their waste management practices into their plans of setting up a manufacturing plant in South Africa. 5. Research Methodology This is evaluation research in the form of a case study and the data collection method employed is the conduction of a survey through questionnaires. The evaluation research also involves a document analysis of the organisation’s 2011 and 2012 annual reports, Dr. Reddy’s 2010 Sustainability Report as well as literature compiled by the organisation’s Corporate Communications Division. The research would also include review of existing literature on waste management. v. Structure of Dissertation This dissertation consists of three sections. Section 1: The Evaluation Report The section introduces the research area, provides the objectives of the research, provides contextual background information and describes the rationale for conducting the research. This section further describes Dr. Reddy’s waste management practice as outlined in relevant company documentation; it is also intended to highlight the specific waste management processes that were followed in the formulation and implementation of the waste management strategy. This section further describes the sample and presents the results of the survey, where the results are collated and reviewed in the context of the criteria set in the South African Waste Legislation, Indian Waste Legislation, as well as in International Pharmaceutical Waste Management Guidelines, and International Pharmaceutical Good Manufacturing Practices. The overall findings of this case study suggest that although management at Dr. Reddy’s are satisfied with waste management practices and results achieved at it manufacturing plant, there is however dissatisfaction amongst employees who believe the organisation has not successfully disseminated information and sufficiently trained them on waste management policies, processes and practices. There is therefore a desire amongst employees to be trained and to see the company improve on its waste management processes, this desire is a very important attribute as it indicates that employees at Dr. Reddy understand and are committed to the importance of waste management. Future research should be conducted to measure the legal impact of non-compliance to legislation governing waste management in the pharmaceutical company. Section 2: Literature Review The objective of the literature review is to provide a critical assessment and evaluation of previous research in the field of waste management in general as prior research was done mostly in other industries and not to a large scale in the pharmaceutical industry. The literature review evaluates the key elements of an effective waste management strategy implementation and is followed by a review of literature pertaining to the description of Pharmaceutical waste. Section 3: Research Methodology This section presents a description of how the work in this research was conducted. It presents the research process followed in compiling this case study, represented by the aims and objectives, research methodology and design, data collection techniques and data analysis.
- Full Text:
- Date Issued: 2013
- Authors: Letsitsi, Ezekiel Tebogo
- Date: 2013
- Subjects: Pharmaceutical industry -- Waste disposal -- Case studies Hazardous wastes -- Management -- South Africa Hazardous wastes -- Management -- Law and legislation -- South Africa , Dr Reddy's Laboratories
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:718 , http://hdl.handle.net/10962/d1001872
- Description: The pharmaceutical industry must worry about managing pharmaceutical waste as it poses a health risk to human beings and its presence in the environment can also contribute to loss of biodiversity. Ngwuluka, Ochekpe, and Odumosu (2011: 11259) state that “Pharmaceuticals, though used to treat and manage diseases, are poisons, which justify the growing concerns about their presence in the environment.” Various forms of pharmaceutical waste exist, Ngwuluka et al. (2011) identified the following forms of pharmaceutical waste: Expired dosage forms, non-reworkable formulations, spilled pharmaceuticals, rejected active pharmaceutical ingredients, expired active pharmaceutical ingredients, and wastewater resulting from the water used for process operations during manufacturing and could come from the water used to clean equipment, pipes and floors, and would contain amongst other materials, chemicals and active pharmaceutical ingredients (APIs). A review on the pharmaceutical industry and the progress they have made in environmental management by generating health, safety and environmental programs, preventing pollution, waste minimization, recycling and reusing materials, investing in projects and facilities to ensure environmental sustainability have been established (Berry & Rondinelli, 2000). Dr. Reddy’s Laboratories is an Indian based pharmaceutical company which imports, markets and sells medicines in South Africa. Dr. Reddy’s has plans to set up a manufacturing plant in South Africa. The purpose of this study is to research waste management practices at Dr. Reddy’s plant in India and to draw parallels between India’s and South Africa’s waste legislation. This is to enable Dr. Reddy’s to review all aspects of its waste management systems, in order to revise where necessary and to improve the overall achievement of its waste management objectives in order to become a more sustainable organisation and to meet South African Waste legislation before setting up a plant in South Africa. 3 ii. Objective of the Evaluation Report The purpose of this research is to evaluate and analyse the development and implementation of a waste management system in a pharmaceutical company, specifically Dr. Reddy’s Laboratories. This is primarily to enable the company to review and analyse all aspects of waste management pertaining to pharmaceutical manufacturing and to revise or improve where necessary to ensure adherence to waste regulations as outlined by government. The following research goals have been also been identified: To identify and describe waste management practices at Dr. Reddy’s Laboratories, on the inherent assumption by the researcher that the company has a successful waste management strategy that would need to be reviewed to identify areas of improvement before expanding manufacturing facilities into South Africa. To evaluate, assess and compare similarities and/or differences between the identified South African Legislation for Waste Management with those identified during research conducted at Dr. Reddy’s iii. Importance of the Research Conducted Waste Management is important in that it not only removes from the environment, substances that can be harmful to humans and animals but it also enables an organisation to be more sustainable. According to Seadon (2010: i) “Integrated waste management is considered from a systems’ approach, with a particular emphasis on advancing sustainability”. The study will provide guidance to senior management, shop floor managers and employees who work in Dr. Reddy’s manufacturing plants as well as overall employees at Dr. Reddy’s on how to successfully implement a Waste Management programme to enhance sustainability at the organisation and realise the benefits to the organisation of being more sustainable. Weybrecht (2010) identified the following benefits that companies could gain by adopting sustainable waste management practices: reduced costs, resource preservation, keeping up with legislation, enhanced reputation, business differentiation from competitors, and attraction and retention of quality employees, and customer need satisfaction amongst many other benefits. This research needs to address the gap in analysing waste management practices (with more emphasis on waste treatment, waste minimisation, re-use, recycling and disposal), and implementation and understanding of waste management in the pharmaceutical industry as prior research was done mostly in other chemical industries and not to a large scale in the pharmaceutical industry. South African Waste Legislation, Indian Waste Legislation (as Dr. Reddy’s is based in India), as well as International Pharmaceutical Waste Management Guidelines, and International Pharmaceutical Good Manufacturing Practices provide a framework and benchmark of leading pharmaceutical waste management practices that can guide Dr. Reddy’s Laboratories’ leadership into integrating their waste management practices into their plans of setting up a manufacturing plant in South Africa. 5. Research Methodology This is evaluation research in the form of a case study and the data collection method employed is the conduction of a survey through questionnaires. The evaluation research also involves a document analysis of the organisation’s 2011 and 2012 annual reports, Dr. Reddy’s 2010 Sustainability Report as well as literature compiled by the organisation’s Corporate Communications Division. The research would also include review of existing literature on waste management. v. Structure of Dissertation This dissertation consists of three sections. Section 1: The Evaluation Report The section introduces the research area, provides the objectives of the research, provides contextual background information and describes the rationale for conducting the research. This section further describes Dr. Reddy’s waste management practice as outlined in relevant company documentation; it is also intended to highlight the specific waste management processes that were followed in the formulation and implementation of the waste management strategy. This section further describes the sample and presents the results of the survey, where the results are collated and reviewed in the context of the criteria set in the South African Waste Legislation, Indian Waste Legislation, as well as in International Pharmaceutical Waste Management Guidelines, and International Pharmaceutical Good Manufacturing Practices. The overall findings of this case study suggest that although management at Dr. Reddy’s are satisfied with waste management practices and results achieved at it manufacturing plant, there is however dissatisfaction amongst employees who believe the organisation has not successfully disseminated information and sufficiently trained them on waste management policies, processes and practices. There is therefore a desire amongst employees to be trained and to see the company improve on its waste management processes, this desire is a very important attribute as it indicates that employees at Dr. Reddy understand and are committed to the importance of waste management. Future research should be conducted to measure the legal impact of non-compliance to legislation governing waste management in the pharmaceutical company. Section 2: Literature Review The objective of the literature review is to provide a critical assessment and evaluation of previous research in the field of waste management in general as prior research was done mostly in other industries and not to a large scale in the pharmaceutical industry. The literature review evaluates the key elements of an effective waste management strategy implementation and is followed by a review of literature pertaining to the description of Pharmaceutical waste. Section 3: Research Methodology This section presents a description of how the work in this research was conducted. It presents the research process followed in compiling this case study, represented by the aims and objectives, research methodology and design, data collection techniques and data analysis.
- Full Text:
- Date Issued: 2013
Wattle and pineapple residues as oyster mushroom substrates and the utilization of spent substrate in potted tomato production
- Hlerema, Igenicious Nicholas
- Authors: Hlerema, Igenicious Nicholas
- Date: 2013
- Language: English
- Type: Thesis , Masters , MSc Agric (Horticultural Science)
- Identifier: vital:11887 , http://hdl.handle.net/10353/d1016199
- Description: Cultivating oyster mushrooms (Pleurotus ostreatus) could have multiple advantages. For example, it can contribute to food security and malnutrition eradication, as a source of healthy and nutritionally rich food. Feeding on lignocellulosic crop/plant residues, these mushroom species also convert waste materials into a wide diversity of products which have multi-beneficial effects to human beings: serving as animal feed and fertiliser, and for protecting and regenerating the environment. Therefore, objectives of the current research were (1) to investigate the use of the rapidly increasing alien plants (Acacia spp.) in South Africa in cultivating of oyster mushroom for dual benefits, income generating and controlling the population of the alien (invasive) plants; (2) to evaluate the use of pineapple residue in the Eastern Cape as sole substrate or as a supplement in the cultivation of oyster mushroom; (3) to determine the effect of mushroom spent substrate, as organic growing media, on growth of tomatoes and controlling nematode population. In an experiment to investigate yield performance of oyster mushroom (Pleurotus ostreatus HK 35) grown on three acacia species [black wattle (BW: Acacia mearnsii) , silver wattle (SW: A. dealbata) and green wattle (GW: A. decurrens)] used as substrates either mixed with 50% maize bran (MB) or 50% wheat straw (WS).
- Full Text:
- Date Issued: 2013
- Authors: Hlerema, Igenicious Nicholas
- Date: 2013
- Language: English
- Type: Thesis , Masters , MSc Agric (Horticultural Science)
- Identifier: vital:11887 , http://hdl.handle.net/10353/d1016199
- Description: Cultivating oyster mushrooms (Pleurotus ostreatus) could have multiple advantages. For example, it can contribute to food security and malnutrition eradication, as a source of healthy and nutritionally rich food. Feeding on lignocellulosic crop/plant residues, these mushroom species also convert waste materials into a wide diversity of products which have multi-beneficial effects to human beings: serving as animal feed and fertiliser, and for protecting and regenerating the environment. Therefore, objectives of the current research were (1) to investigate the use of the rapidly increasing alien plants (Acacia spp.) in South Africa in cultivating of oyster mushroom for dual benefits, income generating and controlling the population of the alien (invasive) plants; (2) to evaluate the use of pineapple residue in the Eastern Cape as sole substrate or as a supplement in the cultivation of oyster mushroom; (3) to determine the effect of mushroom spent substrate, as organic growing media, on growth of tomatoes and controlling nematode population. In an experiment to investigate yield performance of oyster mushroom (Pleurotus ostreatus HK 35) grown on three acacia species [black wattle (BW: Acacia mearnsii) , silver wattle (SW: A. dealbata) and green wattle (GW: A. decurrens)] used as substrates either mixed with 50% maize bran (MB) or 50% wheat straw (WS).
- Full Text:
- Date Issued: 2013
Weather neutral models for short-term electricity demand forecasting
- Authors: Nyulu, Thandekile
- Date: 2013
- Subjects: Electric power consumption -- Forecasting -- Mathematical models , Forecasting -- Mathematical models
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10578 , http://hdl.handle.net/10948/d1018751
- Description: Energy demand forecasting, and specifically electricity demand forecasting, is a fun-damental feature in both industry and research. Forecasting techniques assist all electricity market participants in accurate planning, selling and purchasing decisions and strategies. Generation and distribution of electricity require appropriate, precise and accurate forecasting methods. Also accurate forecasting models assist producers, researchers and economists to make proper and beneficial future decisions. There are several research papers, which investigate this fundamental aspect and attempt var-ious statistical techniques. Although weather and economic effects have significant influences on electricity demand, in this study they are purposely eliminated from investigation. This research considers calendar-related effects such as months of the year, weekdays and holidays (that is, public holidays, the day before a public holiday, the day after a public holiday, school holidays, university holidays, Easter holidays and major religious holidays) and includes university exams, general election days, day after elections, and municipal elections in the analysis. Regression analysis, cate-gorical regression and auto-regression are used to illustrate the relationships between response variable and explanatory variables. The main objective of the investigation was to build forecasting models based on this calendar data only and to observe how accurate the models can be without taking into account weather effects and economic effects, hence weather neutral models. Weather and economic factors have to be forecasted, and these forecasts are not so accurate and calendar events are known for sure (error-free). Collecting data for weather and economic factors is costly and time consuming, while obtaining calendar data is relatively easy.
- Full Text:
- Date Issued: 2013
- Authors: Nyulu, Thandekile
- Date: 2013
- Subjects: Electric power consumption -- Forecasting -- Mathematical models , Forecasting -- Mathematical models
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10578 , http://hdl.handle.net/10948/d1018751
- Description: Energy demand forecasting, and specifically electricity demand forecasting, is a fun-damental feature in both industry and research. Forecasting techniques assist all electricity market participants in accurate planning, selling and purchasing decisions and strategies. Generation and distribution of electricity require appropriate, precise and accurate forecasting methods. Also accurate forecasting models assist producers, researchers and economists to make proper and beneficial future decisions. There are several research papers, which investigate this fundamental aspect and attempt var-ious statistical techniques. Although weather and economic effects have significant influences on electricity demand, in this study they are purposely eliminated from investigation. This research considers calendar-related effects such as months of the year, weekdays and holidays (that is, public holidays, the day before a public holiday, the day after a public holiday, school holidays, university holidays, Easter holidays and major religious holidays) and includes university exams, general election days, day after elections, and municipal elections in the analysis. Regression analysis, cate-gorical regression and auto-regression are used to illustrate the relationships between response variable and explanatory variables. The main objective of the investigation was to build forecasting models based on this calendar data only and to observe how accurate the models can be without taking into account weather effects and economic effects, hence weather neutral models. Weather and economic factors have to be forecasted, and these forecasts are not so accurate and calendar events are known for sure (error-free). Collecting data for weather and economic factors is costly and time consuming, while obtaining calendar data is relatively easy.
- Full Text:
- Date Issued: 2013
Weevil borne microbes contribute as much to the reduction of photosynthesis in water hyacinth as does herbivory
- Venter, Nic, Hill, Martin P, Hutchinson, Sarah-Leigh, Ripley, Brad S
- Authors: Venter, Nic , Hill, Martin P , Hutchinson, Sarah-Leigh , Ripley, Brad S
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/423573 , vital:72073 , xlink:href="https://doi.org/10.1016/j.biocontrol.2012.10.011"
- Description: Arthropods released for weed biocontrol can have effects other than simply removing biomass and frequently decrease photosynthetic rate more than can be attributed to the mere loss of photosynthetic surface area. Some of this effect may result because biological control agents facilitate the transfer and ingress of deleterious microbes into plant tissues on which they feed. We evaluated this facilitation effect using water hyacinth (Eichhornia crassipes) and a weevil (Neochetina eichhorniae) and compared the reductions in photosynthetic rates between leaves subject to herbivory by adult weevils sterilized with 3.5% chlorine bleach, to those that were unsterilized. The results showed that weevils carried both fungi and bacteria, transferred these to leaves on which they fed, and that microbes and biomass removal contributed almost equally to the 37% decrease in photosynthetic productivity. Hence, maximising the effectiveness of using arthropods that damage leaf surfaces for biocontrol requires the presence of microorganisms that are deleterious to plants.
- Full Text:
- Date Issued: 2013
- Authors: Venter, Nic , Hill, Martin P , Hutchinson, Sarah-Leigh , Ripley, Brad S
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/423573 , vital:72073 , xlink:href="https://doi.org/10.1016/j.biocontrol.2012.10.011"
- Description: Arthropods released for weed biocontrol can have effects other than simply removing biomass and frequently decrease photosynthetic rate more than can be attributed to the mere loss of photosynthetic surface area. Some of this effect may result because biological control agents facilitate the transfer and ingress of deleterious microbes into plant tissues on which they feed. We evaluated this facilitation effect using water hyacinth (Eichhornia crassipes) and a weevil (Neochetina eichhorniae) and compared the reductions in photosynthetic rates between leaves subject to herbivory by adult weevils sterilized with 3.5% chlorine bleach, to those that were unsterilized. The results showed that weevils carried both fungi and bacteria, transferred these to leaves on which they fed, and that microbes and biomass removal contributed almost equally to the 37% decrease in photosynthetic productivity. Hence, maximising the effectiveness of using arthropods that damage leaf surfaces for biocontrol requires the presence of microorganisms that are deleterious to plants.
- Full Text:
- Date Issued: 2013
What are the best and worst times in the lives of South African township dwellers? A content analysis of the self-defined end-anchors for Bernheim’s ACSA scale of subjective well-being
- Authors: Moller, Valerie , Theuns, P
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67155 , vital:29042 , https://doi.org/10.1007/s11205-012-0073-1
- Description: publisher version , Bernheim’s ACSA, a less conventional measure of subjective well-being originally developed for use in a clinical setting, was applied to a sample of black South African township dwellers (n = 1,020) in the Eastern Cape Province. The Anamnestic Comparative Self Assessment is an experiential self-anchoring scale with concrete anchors (Bernheim in Psychologie médicale 15:1625–1626, 1983). Respondents described the ‘best’ and ‘worst’ periods experienced in their lives in their own words and rated their current life situation within these two extremes that served as the end-anchors of an 11-point rating scale, ACSA. The ACSA score was significantly positively correlated with conventional measures of subjective well-being. The study examined in detail the content of the ACSA anchors, the best and worst periods of respondents’ lives, classified by domain, to gain insights into reference comparisons applied in quality-of-life evaluation in a developing country setting. As was the case in earlier ACSA studies, most domains that served as reference standards were related to the self and family life. However, material living standards, represented by the domains of income, financial security and housing also featured prominently as personal anchors—a reflection of life goals in post-apartheid South Africa. Age, gender, education and self-reported health were associated with the choice of select anchors. The discussion provides pointers for future applications of ACSA in large sample surveys using a pre-coded multiple-choice format for anchor descriptions. It is concluded that the content of ACSA anchors corresponds closely to contemporary definitions of the good life among ordinary South Africans.
- Full Text: false
- Date Issued: 2013
- Authors: Moller, Valerie , Theuns, P
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67155 , vital:29042 , https://doi.org/10.1007/s11205-012-0073-1
- Description: publisher version , Bernheim’s ACSA, a less conventional measure of subjective well-being originally developed for use in a clinical setting, was applied to a sample of black South African township dwellers (n = 1,020) in the Eastern Cape Province. The Anamnestic Comparative Self Assessment is an experiential self-anchoring scale with concrete anchors (Bernheim in Psychologie médicale 15:1625–1626, 1983). Respondents described the ‘best’ and ‘worst’ periods experienced in their lives in their own words and rated their current life situation within these two extremes that served as the end-anchors of an 11-point rating scale, ACSA. The ACSA score was significantly positively correlated with conventional measures of subjective well-being. The study examined in detail the content of the ACSA anchors, the best and worst periods of respondents’ lives, classified by domain, to gain insights into reference comparisons applied in quality-of-life evaluation in a developing country setting. As was the case in earlier ACSA studies, most domains that served as reference standards were related to the self and family life. However, material living standards, represented by the domains of income, financial security and housing also featured prominently as personal anchors—a reflection of life goals in post-apartheid South Africa. Age, gender, education and self-reported health were associated with the choice of select anchors. The discussion provides pointers for future applications of ACSA in large sample surveys using a pre-coded multiple-choice format for anchor descriptions. It is concluded that the content of ACSA anchors corresponds closely to contemporary definitions of the good life among ordinary South Africans.
- Full Text: false
- Date Issued: 2013