Effects of Vigna unguiculata and Lablab purpureus on methanogenesis, haematological parameters and the quality of meat from Xhosa Lop Ear goats
- Authors: Washaya, Soul
- Date: 2017
- Subjects: Legumes Forage Forage plants
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10353/9996 , vital:35249
- Description: The objective of the current study was to evaluate the nutritive value of forage legumes Lablab purpureus (Lablab) and Vigna unguiculata (Cowpea) and their effects on intake, growth, blood parameters and meat quality in Xhosa goats. Forages were established at UFH research farm in the summer of the 2014 /15 growing season in blocks measuring 8m width x 16m long for each legume, replicated three times, making a total of four blocks, and eight treatment units for each legume. Samples were collected at three different stages of growth of preanthesis, anthesis and post anthesis for biomass yield determination. A homogenous sub-sample was then oven dried for 72 hours at 60 0C. After drying the forage samples were milled through a 1mm screen and a 20g sample from each stage of growth and forage sample was subjected to proximate analysis, in-vitro digestibility and anti-nutrient evaluation. The in-vitro digestibility experiment was done with rumen liquor of cattle and sheep collected from an abbatoir. Tannins, total phenolics and sapponins were the only anti-nutrients evaluated as they are perceived to influence methanogenesis in ruminat animals. At 50percent flowering, forage legumes were harvested for hay making which was then used in an in-vivo trial to evaluate the nutritive value of forages. This trial was conducted using eighteen one-year-old goats of average weight 14.2±0.24 kg over a period of sixty days. The results showed that biomass yield, which increased with stage of growth, was significantly higher (P < 0.05) for Lablab than Cowpea (7.968t/ha vs 7.105t/ha). Cowpea exhibited higher moisture content (7.72percent), Ash (13.11percent), acid detergent fibre (ADF) (38.42percent) and crude protein (CP) (20.23percent) than Lablab which had 7.50percent, 11.45 percent, 36.17percent and 19percent, respectively. Lablab forage had significantly higher (P < 0.05) fat content (2.41percent), neutral detergent fibre (NDF) (49.27percent) and hemicellulose (13.07percent) than Cowpea which had 2.1percent; 46.91percent and 8.48percent, respectively. The stage of growth significantly (P < 0.05) affected the mineral content of both forages. Lablab showed significantly higher (P < 0.05) values (1.22percent 0.55percent, 2.67percent) than Cowpea (1.00percent, 0.45percent, 2.30percent) for calcium (Ca), phosphorus (P), and potassium (K) respectively. Lablab forage had significantly higher (P < 0.05) tannin (3.345mgCAE/gDM), phenolic (13.47mgGAE/gDM) and saponin (0.75percent) content compared to Cowpea with values of 1.494mgCAEg/DM; 9.402mgGAE/gDM and vs 1.55percent respectively. The tannin content significantly influenced in-vitro digestibility and enteric methane production. The forage type, harvesting stage and inoculum source significantly (P < 0.05) affected the in-vitro digestibility of the forages. The in-vitro dry matter (IVDM) and in-vitro organic matter (IVOM) digestibility was significantly higher (P < 0.05) for Lablab (41.13percent; 39.63percent) than Cowpea (39.86percent; 19.44percent), respectively. Both forages recorded higher dry matter (DM) digestibility coefficients at anthesis stage of growth 61.58percent, and 51.5 percent for Lablab and Cowpea respectively. The IVOM digestibility increased with stage of harvest (23.7percent to 25.57percent) for Cowpea while Lablab showed a decrease (44.6 percent to 43.9percent) when cattle inoculum was used. The IVDM digestibility was higher (P < 0.05) for Lablab (50.5percent) when cattle inoculum was used while Cowpea was observed to have higher digestibility co-efficiencies (38.54percent) when sheep inoculum was used. Cowpea had lower (P < 0.05) IVOM digestibility than Lablab (19.44percent) vs. 39.6percent). Lablab exhibited higher (P < 0.05) metabolisable energy (ME) values than Cowpea (6.21 vs. 2.70 MJ/kgDM). In the feeding study, the total DM intake by goats for Lablab was higher (P < 0.05) compared to Cowpea (688.1 vs. 607.8 g/head/ day). There was a positive (P < 0.05) correlation between dry matter intake and average daily gain (r= 0.8513, and r=0.5279) for Cowpea and Lablab respectively. Lablab and Cowpea promoted growth of Xhosa goats at a rate of 35.0g/d; and 38.3g/d, respectively which was not significantly different (P > 0.05). However, this growth was associated with a significantly higher (P < 0.05) food conversion ratio (FCR) of 19.16 vs 18.11 for Cowpea and Lablab, respectively. The apparent DM, non structural carbohydrate (NSC) nutrient digestibilities were significantly different (P < 0.05) for Lablab and Cowpea. Furthermore sex of animal influenced significantly (P < 0.05) the DM, ADF, NSC and NDF digestibilities. Lablab and Cowpea did not influence (P > 0.05) individual VFA molar concentrations in both sexes. However, animals fed Lablab had significantly higher butyrate concentrations (P < 0.05). Lablab and Cowpea forages significantly lowered (P > 0.05) enteric methane production in goats compared to a concentrate diet, and this was related to animal activity. Animals produced significantly more (P < 0.05) methane gas when ruminating than feeding or just standing. The average methane produced each year was lower but not significant (P > 0.05) for animals fed Cowpea than Lablab (4.602kg CH4, vs. 4.719kg CH4) when expressed per year. Male animals produced more gas than females with values of 17.40L/day; 12.46 g/kg DMI and 0.126g/day vs. 15.47L/day, 12.28 g/kg DMI, and 0.0109g/day, respectively. Forage legumes had no significant effects (P > 0.05) on serum total proteins (TP), globulin, urea, creatinine, alanine aminotransferase (ALT), alkaline phosphatase (ALP), and gamma- glutamyl transferase (GGT) concentrations, but serum concentration of albumin was influenced by the diets (P < 0.05). Sex of animals significantly influenced ALP concentration (P < 0.05) with male animals exhibiting higer ALP values than females. Measured over time, the plasma concentration of urea and ALP significantly increased (P < 0.05) while creatinine and cholesterol concentration decreased (P < 0.05). Although the overall serum concentration of urea, total proteins, globulin, creatinine, ALT, ALP and GGT remained unchanged among the treatments and between sexes; treatment by sex, treatment by day and sex by day interactions were significant (P < 0.05). The white blood cell (WBC), red blood cell (RBC), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC), haemoglobin, haematocrite, platelet and mean platelet volume (MPV) levels were similar among treatments and between sexes (P > 0.05). The WBC decreased with time by 8.07 x10 9/l while mean crepuscular volume (MCV) increased by 11.83(fl) from day 15 to day 55. Treatment diets significantly (P < 0.05) influenced neutrophile (percent) content while sex influenced basophile (percent) content. There were no treatment or sex effects (P > 0.05) on lymphocytes (percent), monocytes (percent) and eosinophiles (percent). In the meat quality study, the dietary treatments and sex had a significant (P < 0.05) effect on dressing out percent (DPpercent), initial pH, redness (a*), yellowness (b*), Warner Blartze Shear force (WBS) , drip loss and cooking loss in the chevon from Xhosa goats. Compared with a commercial pellet diet, Lablab and Cowpea diets resulted in similar slaughter body weights (SBW), hot carcass weight (HCW) and cold dressed mass (CDM) of carcasses. However, female animals exhibited a significantly (P < 0.05) higher DPpercent than male animals (42.3percent vs. 38.9percent) for all treatments. The male animals exhibited significantly (P < 0.05) higher pH values one hour after slaughter than females (5.79 vs 5.67). Neverthreless the diet and gender did not significantly (P > 0.05) affect the ultimate pH (pHu). Meat samples from male animals had significantly (P < 0.05) higher redness values than females. Feeding cowpea significantly (P < 0.05) increased meat redness with the least drip loss of chevon. Female animals produced significantly (P < 0.05) tougher chevon compared to male animals; 4.16kg and 3.36kg for female and male, respectively. Lablab and Cowpea posses high CP levels and moderately lower NDF with high ADF values that influences dry matter intake (DMI), digestibility and growth of goats. These forage legumes meet animal requirements for fat, ADF, NDF, CP, Ca, Mn, zinc and Cu and their biomass yield is satisfactory.
- Full Text:
- Date Issued: 2017
- Authors: Washaya, Soul
- Date: 2017
- Subjects: Legumes Forage Forage plants
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10353/9996 , vital:35249
- Description: The objective of the current study was to evaluate the nutritive value of forage legumes Lablab purpureus (Lablab) and Vigna unguiculata (Cowpea) and their effects on intake, growth, blood parameters and meat quality in Xhosa goats. Forages were established at UFH research farm in the summer of the 2014 /15 growing season in blocks measuring 8m width x 16m long for each legume, replicated three times, making a total of four blocks, and eight treatment units for each legume. Samples were collected at three different stages of growth of preanthesis, anthesis and post anthesis for biomass yield determination. A homogenous sub-sample was then oven dried for 72 hours at 60 0C. After drying the forage samples were milled through a 1mm screen and a 20g sample from each stage of growth and forage sample was subjected to proximate analysis, in-vitro digestibility and anti-nutrient evaluation. The in-vitro digestibility experiment was done with rumen liquor of cattle and sheep collected from an abbatoir. Tannins, total phenolics and sapponins were the only anti-nutrients evaluated as they are perceived to influence methanogenesis in ruminat animals. At 50percent flowering, forage legumes were harvested for hay making which was then used in an in-vivo trial to evaluate the nutritive value of forages. This trial was conducted using eighteen one-year-old goats of average weight 14.2±0.24 kg over a period of sixty days. The results showed that biomass yield, which increased with stage of growth, was significantly higher (P < 0.05) for Lablab than Cowpea (7.968t/ha vs 7.105t/ha). Cowpea exhibited higher moisture content (7.72percent), Ash (13.11percent), acid detergent fibre (ADF) (38.42percent) and crude protein (CP) (20.23percent) than Lablab which had 7.50percent, 11.45 percent, 36.17percent and 19percent, respectively. Lablab forage had significantly higher (P < 0.05) fat content (2.41percent), neutral detergent fibre (NDF) (49.27percent) and hemicellulose (13.07percent) than Cowpea which had 2.1percent; 46.91percent and 8.48percent, respectively. The stage of growth significantly (P < 0.05) affected the mineral content of both forages. Lablab showed significantly higher (P < 0.05) values (1.22percent 0.55percent, 2.67percent) than Cowpea (1.00percent, 0.45percent, 2.30percent) for calcium (Ca), phosphorus (P), and potassium (K) respectively. Lablab forage had significantly higher (P < 0.05) tannin (3.345mgCAE/gDM), phenolic (13.47mgGAE/gDM) and saponin (0.75percent) content compared to Cowpea with values of 1.494mgCAEg/DM; 9.402mgGAE/gDM and vs 1.55percent respectively. The tannin content significantly influenced in-vitro digestibility and enteric methane production. The forage type, harvesting stage and inoculum source significantly (P < 0.05) affected the in-vitro digestibility of the forages. The in-vitro dry matter (IVDM) and in-vitro organic matter (IVOM) digestibility was significantly higher (P < 0.05) for Lablab (41.13percent; 39.63percent) than Cowpea (39.86percent; 19.44percent), respectively. Both forages recorded higher dry matter (DM) digestibility coefficients at anthesis stage of growth 61.58percent, and 51.5 percent for Lablab and Cowpea respectively. The IVOM digestibility increased with stage of harvest (23.7percent to 25.57percent) for Cowpea while Lablab showed a decrease (44.6 percent to 43.9percent) when cattle inoculum was used. The IVDM digestibility was higher (P < 0.05) for Lablab (50.5percent) when cattle inoculum was used while Cowpea was observed to have higher digestibility co-efficiencies (38.54percent) when sheep inoculum was used. Cowpea had lower (P < 0.05) IVOM digestibility than Lablab (19.44percent) vs. 39.6percent). Lablab exhibited higher (P < 0.05) metabolisable energy (ME) values than Cowpea (6.21 vs. 2.70 MJ/kgDM). In the feeding study, the total DM intake by goats for Lablab was higher (P < 0.05) compared to Cowpea (688.1 vs. 607.8 g/head/ day). There was a positive (P < 0.05) correlation between dry matter intake and average daily gain (r= 0.8513, and r=0.5279) for Cowpea and Lablab respectively. Lablab and Cowpea promoted growth of Xhosa goats at a rate of 35.0g/d; and 38.3g/d, respectively which was not significantly different (P > 0.05). However, this growth was associated with a significantly higher (P < 0.05) food conversion ratio (FCR) of 19.16 vs 18.11 for Cowpea and Lablab, respectively. The apparent DM, non structural carbohydrate (NSC) nutrient digestibilities were significantly different (P < 0.05) for Lablab and Cowpea. Furthermore sex of animal influenced significantly (P < 0.05) the DM, ADF, NSC and NDF digestibilities. Lablab and Cowpea did not influence (P > 0.05) individual VFA molar concentrations in both sexes. However, animals fed Lablab had significantly higher butyrate concentrations (P < 0.05). Lablab and Cowpea forages significantly lowered (P > 0.05) enteric methane production in goats compared to a concentrate diet, and this was related to animal activity. Animals produced significantly more (P < 0.05) methane gas when ruminating than feeding or just standing. The average methane produced each year was lower but not significant (P > 0.05) for animals fed Cowpea than Lablab (4.602kg CH4, vs. 4.719kg CH4) when expressed per year. Male animals produced more gas than females with values of 17.40L/day; 12.46 g/kg DMI and 0.126g/day vs. 15.47L/day, 12.28 g/kg DMI, and 0.0109g/day, respectively. Forage legumes had no significant effects (P > 0.05) on serum total proteins (TP), globulin, urea, creatinine, alanine aminotransferase (ALT), alkaline phosphatase (ALP), and gamma- glutamyl transferase (GGT) concentrations, but serum concentration of albumin was influenced by the diets (P < 0.05). Sex of animals significantly influenced ALP concentration (P < 0.05) with male animals exhibiting higer ALP values than females. Measured over time, the plasma concentration of urea and ALP significantly increased (P < 0.05) while creatinine and cholesterol concentration decreased (P < 0.05). Although the overall serum concentration of urea, total proteins, globulin, creatinine, ALT, ALP and GGT remained unchanged among the treatments and between sexes; treatment by sex, treatment by day and sex by day interactions were significant (P < 0.05). The white blood cell (WBC), red blood cell (RBC), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC), haemoglobin, haematocrite, platelet and mean platelet volume (MPV) levels were similar among treatments and between sexes (P > 0.05). The WBC decreased with time by 8.07 x10 9/l while mean crepuscular volume (MCV) increased by 11.83(fl) from day 15 to day 55. Treatment diets significantly (P < 0.05) influenced neutrophile (percent) content while sex influenced basophile (percent) content. There were no treatment or sex effects (P > 0.05) on lymphocytes (percent), monocytes (percent) and eosinophiles (percent). In the meat quality study, the dietary treatments and sex had a significant (P < 0.05) effect on dressing out percent (DPpercent), initial pH, redness (a*), yellowness (b*), Warner Blartze Shear force (WBS) , drip loss and cooking loss in the chevon from Xhosa goats. Compared with a commercial pellet diet, Lablab and Cowpea diets resulted in similar slaughter body weights (SBW), hot carcass weight (HCW) and cold dressed mass (CDM) of carcasses. However, female animals exhibited a significantly (P < 0.05) higher DPpercent than male animals (42.3percent vs. 38.9percent) for all treatments. The male animals exhibited significantly (P < 0.05) higher pH values one hour after slaughter than females (5.79 vs 5.67). Neverthreless the diet and gender did not significantly (P > 0.05) affect the ultimate pH (pHu). Meat samples from male animals had significantly (P < 0.05) higher redness values than females. Feeding cowpea significantly (P < 0.05) increased meat redness with the least drip loss of chevon. Female animals produced significantly (P < 0.05) tougher chevon compared to male animals; 4.16kg and 3.36kg for female and male, respectively. Lablab and Cowpea posses high CP levels and moderately lower NDF with high ADF values that influences dry matter intake (DMI), digestibility and growth of goats. These forage legumes meet animal requirements for fat, ADF, NDF, CP, Ca, Mn, zinc and Cu and their biomass yield is satisfactory.
- Full Text:
- Date Issued: 2017
Exploring perspectives of South African fathers of a child with Down syndrome
- Authors: Webber, Heidi
- Date: 2017
- Subjects: Parents of children with disabilities -- Attitudes , Parenting -- Psychological aspects Down syndrome -- Care Mental retardation
- Language: English
- Type: Thesis , Doctoral , DEd
- Identifier: http://hdl.handle.net/10948/13535 , vital:27220
- Description: A mere glance at a family photograph of the Victorian era leaves little doubt of the position of the figure exuding impervious, authoritarian detachment. Austere, rigid and solemn, it is not hard to guess who cast the shadow over the picture. Arrestingly imposing in his role as backbone of the family, this is the nineteenth century legacy image of the father. However, the last century has seen fatherhood redefine itself and the more liberal, lenient and openly loving figure replaced the strict patriarchal model. In contemporary times, fathers are regularly seen comfortably behind a stroller, outdoors with children on their shoulders, at home tousling with their children, and considerably more involved in school and social events. Unashamedly, fathers have moved toward both acknowledging and displaying a softer paternal image. By definition fatherhood is a decidedly individual concept and a unique experience, involving much more than being the male parent in a family, the family protector, or the provider of paycheques. Although the past decade has seen a surge of research and interest in fatherhood with an increased recognition that the involvement of fathers contribute to the well-being, cognitive growth and social competence of their children, there remains a deficit in research on the experiences, perceptions and involvement of fathers of children diagnosed with Down syndrome. And whilst most of this knowledge base is extrapolated from studies about the mother’s experience, true understanding requires that fathers are studied directly. Mothers and fathers respond differently to the pressure associated with raising a child with Down syndrome and literature supports the common view that men are less likely and easy to engage in therapy than women, are less likely to attend therapy, or seek help for physical or psychological problems. For fathers of any differently abled child, the distance between the idealized fathering experience and the actual one may be enormous. Based upon the patriarchy model of the family, in many conventional homes, the wife and mother is like a thermometer, sensing and reflecting the home’s temperature, whilst the father and husband is like the home’s thermostat, which determines and regulates the temperature. The equilibrium of the father plays an important role in his ‘thermostat settings’ to set the right temperature in the marriage and his family. Having a differently abled child is almost never expected and often necessitates a change in plans as the family members adjust their views of their own future, their future with their child, as well as how they will henceforth operate as a family.Some fathers may experience uncertainty about their parenting role of a child diagnosed with Down syndrome, often resulting in peculiar behaviours of the father. This may include engrossing themselves into their work, hobbies, sport, and so forth, almost abdicating their duty as father; believing that the mother knows best (sometimes using their own lack of knowledge as a cop-out); or, they simply withdraw because the mother takes such complete control of every aspect of the child that the father feels inadequate, superfluous, and peripheral as parent. Each parent grieves the ‘loss’ of the child they expected in their own individual way. However, such a highly emotive situation may be compounded by the following aspects: the undeniable pressure of caring for the differently abled child; the additional financial burden; a waning social life; and, the incapacity to cope emotionally whilst invariably displaying the contrary purely to create the illusion that they are indeed coping. Fathers need to develop strategies and skills to cope with the very real and practical needs of parenting their child with Down syndrome, to furthermore minimize relationship conflict and misunderstanding, and to support their child’s optimal development. How these specific issues are embraced and managed may dramatically influence the peace and harmony of family life as well as the marital relationship. This study explores the perspectives of fathers of a child with Down syndrome to ultimately support this unique journey as they navigate their way through “Down”town Holland, as illustrated in the analogy to follow.
- Full Text:
- Date Issued: 2017
- Authors: Webber, Heidi
- Date: 2017
- Subjects: Parents of children with disabilities -- Attitudes , Parenting -- Psychological aspects Down syndrome -- Care Mental retardation
- Language: English
- Type: Thesis , Doctoral , DEd
- Identifier: http://hdl.handle.net/10948/13535 , vital:27220
- Description: A mere glance at a family photograph of the Victorian era leaves little doubt of the position of the figure exuding impervious, authoritarian detachment. Austere, rigid and solemn, it is not hard to guess who cast the shadow over the picture. Arrestingly imposing in his role as backbone of the family, this is the nineteenth century legacy image of the father. However, the last century has seen fatherhood redefine itself and the more liberal, lenient and openly loving figure replaced the strict patriarchal model. In contemporary times, fathers are regularly seen comfortably behind a stroller, outdoors with children on their shoulders, at home tousling with their children, and considerably more involved in school and social events. Unashamedly, fathers have moved toward both acknowledging and displaying a softer paternal image. By definition fatherhood is a decidedly individual concept and a unique experience, involving much more than being the male parent in a family, the family protector, or the provider of paycheques. Although the past decade has seen a surge of research and interest in fatherhood with an increased recognition that the involvement of fathers contribute to the well-being, cognitive growth and social competence of their children, there remains a deficit in research on the experiences, perceptions and involvement of fathers of children diagnosed with Down syndrome. And whilst most of this knowledge base is extrapolated from studies about the mother’s experience, true understanding requires that fathers are studied directly. Mothers and fathers respond differently to the pressure associated with raising a child with Down syndrome and literature supports the common view that men are less likely and easy to engage in therapy than women, are less likely to attend therapy, or seek help for physical or psychological problems. For fathers of any differently abled child, the distance between the idealized fathering experience and the actual one may be enormous. Based upon the patriarchy model of the family, in many conventional homes, the wife and mother is like a thermometer, sensing and reflecting the home’s temperature, whilst the father and husband is like the home’s thermostat, which determines and regulates the temperature. The equilibrium of the father plays an important role in his ‘thermostat settings’ to set the right temperature in the marriage and his family. Having a differently abled child is almost never expected and often necessitates a change in plans as the family members adjust their views of their own future, their future with their child, as well as how they will henceforth operate as a family.Some fathers may experience uncertainty about their parenting role of a child diagnosed with Down syndrome, often resulting in peculiar behaviours of the father. This may include engrossing themselves into their work, hobbies, sport, and so forth, almost abdicating their duty as father; believing that the mother knows best (sometimes using their own lack of knowledge as a cop-out); or, they simply withdraw because the mother takes such complete control of every aspect of the child that the father feels inadequate, superfluous, and peripheral as parent. Each parent grieves the ‘loss’ of the child they expected in their own individual way. However, such a highly emotive situation may be compounded by the following aspects: the undeniable pressure of caring for the differently abled child; the additional financial burden; a waning social life; and, the incapacity to cope emotionally whilst invariably displaying the contrary purely to create the illusion that they are indeed coping. Fathers need to develop strategies and skills to cope with the very real and practical needs of parenting their child with Down syndrome, to furthermore minimize relationship conflict and misunderstanding, and to support their child’s optimal development. How these specific issues are embraced and managed may dramatically influence the peace and harmony of family life as well as the marital relationship. This study explores the perspectives of fathers of a child with Down syndrome to ultimately support this unique journey as they navigate their way through “Down”town Holland, as illustrated in the analogy to follow.
- Full Text:
- Date Issued: 2017
The influence of diversity management initiatives on business and social outcomes in South African businesses
- Authors: Webber, Zwelibanzi Samson
- Date: 2017
- Subjects: Diversity in the workplace -- South Africa , Organizational change -- South Africa Social change -- South Africa Management -- Social aspects -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13524 , vital:27217
- Description: Diversity management is of strategic importance in all organisations throughout the world. Its importance is derived from the belief that workplaces by nature consist of diverse employees, who in one way or another are different in terms of race, gender, religion, or any other difference that may have an impact on the business and its employees. The differences among people need to be managed. This study investigated the influence of diversity management initiatives on business and social outcomes in South African businesses. Literature reviews on diversity management and multicultural education in various parts of the world have revealed an impact on the influence of diversity management initiatives on business and social outcomes. However, existing South African literature on diversity management does not conclusively expose the effects of diversity management on business and social outcomes, hence the need for this study. The study was based on a conceptual framework, which included variables on diversity management initiatives, diversity management models, institutional development theory and business and social outcomes. Hypotheses for the study were also developed and tested. In testing the hypotheses, the empirical data collected was subjected to a series of statistical tests, using STATISTICA version 13. MANOVA tests were conducted to determine the existence of differences among variables and the extent to which the variables differed was measured by means of ANOVA tests. Tukey post hoc tests (Tukey HSD) were used to determine practical significance among variables. The study was also subjected to Pearson product-moment correlation coefficient analysis tests to ascertain the existence of relationships between all diversity management initiatives and business and social outcome factors. The analysis was concluded by conducting an exploratory factor analysis. An exploratory factor analysis was conducted to confirm or reduce the number of factors and the number of factors was subsequently reduced. A Pearson product-moment correlation coefficient test was also done for the extracted factors, after which a regressions analysis test was conducted to confirm the existence of relationships between the extracted diversity management initiatives factors and business and social outcomes factors. This formed the basis for the development of a proposed diversity management model. The model of the implementation of diversity management initiatives is an important contribution to the study because it shows the different aspects that guide the process of implementation. The model is based on the implementation of a formal diversity management change strategy and programme of action; employment equity plan and strategy; and the recruitment and empowerment of women and people living with disabilities. The study was not without limitations. Challenges with regard to access to respondents were experienced and this was one of the delays in data collection. Another challenge experienced was that the study did not include qualitative research approaches, which could have been used for in-depth responses. The study provides an important milestone for the use of diversity management initiatives in South African companies.
- Full Text:
- Date Issued: 2017
- Authors: Webber, Zwelibanzi Samson
- Date: 2017
- Subjects: Diversity in the workplace -- South Africa , Organizational change -- South Africa Social change -- South Africa Management -- Social aspects -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13524 , vital:27217
- Description: Diversity management is of strategic importance in all organisations throughout the world. Its importance is derived from the belief that workplaces by nature consist of diverse employees, who in one way or another are different in terms of race, gender, religion, or any other difference that may have an impact on the business and its employees. The differences among people need to be managed. This study investigated the influence of diversity management initiatives on business and social outcomes in South African businesses. Literature reviews on diversity management and multicultural education in various parts of the world have revealed an impact on the influence of diversity management initiatives on business and social outcomes. However, existing South African literature on diversity management does not conclusively expose the effects of diversity management on business and social outcomes, hence the need for this study. The study was based on a conceptual framework, which included variables on diversity management initiatives, diversity management models, institutional development theory and business and social outcomes. Hypotheses for the study were also developed and tested. In testing the hypotheses, the empirical data collected was subjected to a series of statistical tests, using STATISTICA version 13. MANOVA tests were conducted to determine the existence of differences among variables and the extent to which the variables differed was measured by means of ANOVA tests. Tukey post hoc tests (Tukey HSD) were used to determine practical significance among variables. The study was also subjected to Pearson product-moment correlation coefficient analysis tests to ascertain the existence of relationships between all diversity management initiatives and business and social outcome factors. The analysis was concluded by conducting an exploratory factor analysis. An exploratory factor analysis was conducted to confirm or reduce the number of factors and the number of factors was subsequently reduced. A Pearson product-moment correlation coefficient test was also done for the extracted factors, after which a regressions analysis test was conducted to confirm the existence of relationships between the extracted diversity management initiatives factors and business and social outcomes factors. This formed the basis for the development of a proposed diversity management model. The model of the implementation of diversity management initiatives is an important contribution to the study because it shows the different aspects that guide the process of implementation. The model is based on the implementation of a formal diversity management change strategy and programme of action; employment equity plan and strategy; and the recruitment and empowerment of women and people living with disabilities. The study was not without limitations. Challenges with regard to access to respondents were experienced and this was one of the delays in data collection. Another challenge experienced was that the study did not include qualitative research approaches, which could have been used for in-depth responses. The study provides an important milestone for the use of diversity management initiatives in South African companies.
- Full Text:
- Date Issued: 2017
The emergence and expression of teachers’ identities in teaching foundation phase mathematics
- Authors: Westaway, Lise
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/7000 , vital:21208
- Description: The assertion that learner performance in South African schools is in crisis may be cliched but it is certainly true. The majority of learners in the schooling system are not achieving the required outcomes, particularly in language and mathematics. I use the underperformance of learners in mathematics as the impetus for my research which seeks to understand how teachers’ identities emerge and are expressed in teaching Foundation Phase mathematics. The research contributes to an emerging scholarship that strives to explain underperformance and quality in mathematics classrooms beyond structuralist theorising. Recently research, particularly in South Africa, has begun to look more closely at who the teacher is and how the teacher is key in understanding what happens in the mathematics classroom. This emerging scholarship focuses on teacher identities. Research that foregrounds teacher identities within the field of mathematics education tends to be situated within a social constructionist orientation, which assumes that our knowledge of self and the world comes from our interactions with people and not some ‘objective’ reality (Berger & Luckman, 1966). Such a perspective appears to conflate questions of how we know something with what is. In other words, it elides structure and agency, thereby making research that seeks to examine the interplay between the two in the formation and expression of teachers’ identities, practically impossible. It is for this reason, as well as the need to move beyond the hermeneutic, that my research draws on Margaret Archer’s (1995, 1996, 2000) social realist framework. Social realism posits a relativist epistemology but a realist ontology. It is underpinned by the notion of a stratified reality with structural mechanisms giving rise to events in the world whether we experience them or not. It is only through the (inter)actions of persons that such mechanisms have the tendential power to constrain or enable the projects of persons. As such, my research seeks to identify the structural and agential mechanisms that give rise to teachers’ identities and how these identities are expressed in teaching Foundation Phase mathematics. In my research, teacher identity refers to the manner in which teachers express their social roles as teachers. In the research I use a case study methodology. I provide rich data on four isiXhosa teachers teaching in low socio-economic status schools. This data is gleaned through interviews and classroom based observations which were recorded as field notes and video transcripts. Analysis of the data occurs through the thought processes of abduction and retroduction (Danermark, Ekstrom, Jakobsen, & Karlsson, 2002). These thought process enable me to (re)describe and (re)contextualise the object of study. Through the process of asking transfactual questions I identify the structural, cultural and agential mechanisms giving rise to teachers’ identities and their expression in teaching foundation phase mathematics. There are three significant findings in my research. Firstly, research that attempts to understand the emergence and expression of teacher identities should consider their broad contextual realities. The historical, economic, social and political contexts in which the teachers are born and live, influences their sense of self, personal identities and social identities (teacher identities) and as such, influences their decision to become teachers and how they express their roles as teachers of Foundation Phase mathematics. Secondly, my research suggests that teachers’ mode of reflexivity is key to understanding the decisions that they make in the classroom and how they deal with the structures that condition the manner in which they express their roles as teachers. Thirdly, collective agency is necessary to bring about change in the way in which teachers express their roles in teaching Foundation Phase mathematics. My research produces new knowledge by examining the interplay of structure, culture and agency in the constitution of foundation phase teachers’ identities and their expression in teaching foundation phase mathematics. I use a social realist orientation to examine this interplay and provide an understanding of the mechanisms giving rise to the phenomenon under consideration. In this way I contribute to the extensive research on learner underperformance by focusing more explicitly on who the teacher is in the classroom.
- Full Text:
- Date Issued: 2017
- Authors: Westaway, Lise
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/7000 , vital:21208
- Description: The assertion that learner performance in South African schools is in crisis may be cliched but it is certainly true. The majority of learners in the schooling system are not achieving the required outcomes, particularly in language and mathematics. I use the underperformance of learners in mathematics as the impetus for my research which seeks to understand how teachers’ identities emerge and are expressed in teaching Foundation Phase mathematics. The research contributes to an emerging scholarship that strives to explain underperformance and quality in mathematics classrooms beyond structuralist theorising. Recently research, particularly in South Africa, has begun to look more closely at who the teacher is and how the teacher is key in understanding what happens in the mathematics classroom. This emerging scholarship focuses on teacher identities. Research that foregrounds teacher identities within the field of mathematics education tends to be situated within a social constructionist orientation, which assumes that our knowledge of self and the world comes from our interactions with people and not some ‘objective’ reality (Berger & Luckman, 1966). Such a perspective appears to conflate questions of how we know something with what is. In other words, it elides structure and agency, thereby making research that seeks to examine the interplay between the two in the formation and expression of teachers’ identities, practically impossible. It is for this reason, as well as the need to move beyond the hermeneutic, that my research draws on Margaret Archer’s (1995, 1996, 2000) social realist framework. Social realism posits a relativist epistemology but a realist ontology. It is underpinned by the notion of a stratified reality with structural mechanisms giving rise to events in the world whether we experience them or not. It is only through the (inter)actions of persons that such mechanisms have the tendential power to constrain or enable the projects of persons. As such, my research seeks to identify the structural and agential mechanisms that give rise to teachers’ identities and how these identities are expressed in teaching Foundation Phase mathematics. In my research, teacher identity refers to the manner in which teachers express their social roles as teachers. In the research I use a case study methodology. I provide rich data on four isiXhosa teachers teaching in low socio-economic status schools. This data is gleaned through interviews and classroom based observations which were recorded as field notes and video transcripts. Analysis of the data occurs through the thought processes of abduction and retroduction (Danermark, Ekstrom, Jakobsen, & Karlsson, 2002). These thought process enable me to (re)describe and (re)contextualise the object of study. Through the process of asking transfactual questions I identify the structural, cultural and agential mechanisms giving rise to teachers’ identities and their expression in teaching foundation phase mathematics. There are three significant findings in my research. Firstly, research that attempts to understand the emergence and expression of teacher identities should consider their broad contextual realities. The historical, economic, social and political contexts in which the teachers are born and live, influences their sense of self, personal identities and social identities (teacher identities) and as such, influences their decision to become teachers and how they express their roles as teachers of Foundation Phase mathematics. Secondly, my research suggests that teachers’ mode of reflexivity is key to understanding the decisions that they make in the classroom and how they deal with the structures that condition the manner in which they express their roles as teachers. Thirdly, collective agency is necessary to bring about change in the way in which teachers express their roles in teaching Foundation Phase mathematics. My research produces new knowledge by examining the interplay of structure, culture and agency in the constitution of foundation phase teachers’ identities and their expression in teaching foundation phase mathematics. I use a social realist orientation to examine this interplay and provide an understanding of the mechanisms giving rise to the phenomenon under consideration. In this way I contribute to the extensive research on learner underperformance by focusing more explicitly on who the teacher is in the classroom.
- Full Text:
- Date Issued: 2017
Spatial and seasonal distribution of selected persistent organic pollutants and phenolic derivatives along the course of the Buffalo River in the Eastern Cape Province of South Africa
- Authors: Yahaya, Abdulrazaq
- Date: 2017
- Subjects: Organic water pollutants Water -- Purification -- Organic compounds removal
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/5939 , vital:29448
- Description:
Persistent organic pollutants (POPs) fall under a group of synthetic chemicals known for their persistence in environmental matrices such as soil and water, and are used in industrial, domestic and agricultural applications. Because of their volatility and lipophilicity, POPs can be transported far away from their point sources and bio-accumulate in food and in fatty tissues of humans and animals. In view of their toxicity and carcinogenicity some organic pollutants such as polychlorinated biphenyl (PCBs), organochlorine pesticides (OCPs) and phenolic derivatives (chlorophenol and nitrophenol) have been classified by United State Environmental Protection Agency (USEPA) and World Health Organization (WHO) as priority pollutants. The present work evaluated the distribution patterns of 19 polychlorinated biphenyls congeners, 17 organochlorine pesticides and selected phenolic derivatives (USEPA 11-priority pollutants) in the Buffalo River, in the Eastern Cape Province, South Africa between December 2015 and May 2016. The Liquid-liquid extraction technique was used for PCBs, OCPs and phenolic derivatives in the river water samples. Silica gel and florisil clean up were carried out for PCBs and OCPs samples respectively and analyzed with gas chromatography electron capture detector (GC/ECD). Phenolic compounds were derivatized and analyzed by gas chromatography mass spectrometer (GC/MS). Limits of detection (LOD), limit of quantitation (LOQ) and relative standard deviation (RSD) for the PCBs were 10 to 330 ng/L, 20 to 1,060 ng/L and 1.18 to 14.1 percent respectively. The LOD, LOQ and RSD for the OCPs were from 20 - 60 ng/L, 110 - 530 ng/L and 0.02 - 0.06 percent, while the corresponding values for the phenolic derivatives were 10 to 70 ng/L, 33 to 222 ng/L and 1.99 - 10.86 percent. In summer, the concentrations of PCBs, OCPs and phenolic derivatives ranged from
- Full Text:
- Date Issued: 2017
- Authors: Yahaya, Abdulrazaq
- Date: 2017
- Subjects: Organic water pollutants Water -- Purification -- Organic compounds removal
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/5939 , vital:29448
- Description:
Persistent organic pollutants (POPs) fall under a group of synthetic chemicals known for their persistence in environmental matrices such as soil and water, and are used in industrial, domestic and agricultural applications. Because of their volatility and lipophilicity, POPs can be transported far away from their point sources and bio-accumulate in food and in fatty tissues of humans and animals. In view of their toxicity and carcinogenicity some organic pollutants such as polychlorinated biphenyl (PCBs), organochlorine pesticides (OCPs) and phenolic derivatives (chlorophenol and nitrophenol) have been classified by United State Environmental Protection Agency (USEPA) and World Health Organization (WHO) as priority pollutants. The present work evaluated the distribution patterns of 19 polychlorinated biphenyls congeners, 17 organochlorine pesticides and selected phenolic derivatives (USEPA 11-priority pollutants) in the Buffalo River, in the Eastern Cape Province, South Africa between December 2015 and May 2016. The Liquid-liquid extraction technique was used for PCBs, OCPs and phenolic derivatives in the river water samples. Silica gel and florisil clean up were carried out for PCBs and OCPs samples respectively and analyzed with gas chromatography electron capture detector (GC/ECD). Phenolic compounds were derivatized and analyzed by gas chromatography mass spectrometer (GC/MS). Limits of detection (LOD), limit of quantitation (LOQ) and relative standard deviation (RSD) for the PCBs were 10 to 330 ng/L, 20 to 1,060 ng/L and 1.18 to 14.1 percent respectively. The LOD, LOQ and RSD for the OCPs were from 20 - 60 ng/L, 110 - 530 ng/L and 0.02 - 0.06 percent, while the corresponding values for the phenolic derivatives were 10 to 70 ng/L, 33 to 222 ng/L and 1.99 - 10.86 percent. In summer, the concentrations of PCBs, OCPs and phenolic derivatives ranged from
- Full Text:
- Date Issued: 2017
An experimental study of self-regulated learning with mathematically gifted pupils in Nigerian primary schools
- Authors: Zaram, Gyang Nyam
- Date: 2017
- Subjects: Mathematics -- Study and teaching (Elementary) -- Nigeria , Numeracy -- Study and teaching (Elementary) -- Nigeria Gifted children -- Education -- Curricula Gifted children -- Nigeria
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13381 , vital:27180
- Description: The purpose of this study was to determine whether gifted pupils can master an enriched advanced level curriculum in mathematics using self-regulated learning strategies. A mathematics curriculum for class five primary school learners in Nigeria was developed for this study. An empirical study was conducted on primary five pupils who were seen to be significantly gifted in mathematics. The study employed the quantitative method of research, that is, the true experimental research. The pre-test, post-test control group design was used. Sixty gifted pupils who participated in a mathematics enrichment programme (MEP) were assigned into two groups of the control group and experimental group with thirty pupils forming each group. The control group was exposed to direct teaching (DT) while the experimental group used self-regulated learning (SRL) strategies. Four teachers served as facilitators in the MEP. The teaching and learning activities were carried out at a higher cognitive level as opposed to the regular curriculum, ensuring that the contents of the MEP were enriched and accelerated. Pupils in both the experimental group and the control group were administered a pre-test, problem-solving exercises, and post-test. These pupils also completed an attitudinal questionnaire to provide feedback about the MEP. The empirical results show that gifted pupils in primary five are capable of self-regulating their own learning through self-monitoring, self-evaluation, and self-reinforcement. The empirical results also show that there is a significant relationship between self-regulated learning, gifted learners, and an enriched advanced level differentiated curriculum as a realistic alternative to the present regular curriculum for gifted pupils in the mainstream of education. The findings further show that the lack of differentiation of instruction, lack of facilities such as libraries, media centres, and support materials contributes to low achievement of gifted pupils. Furthermore, the findings show that pupils were challenged and motivated with the MEP to the extent that they were engaged to think divergently and applied their metacognitive skills in finding solutions to mathematical problems. Therefore, the findings of this study could have significant implications for the future direction of gifted primary school education as well as teacher education. This study has made a significant contribution to the existing body of knowledge for implementing an enriched advanced level curriculum using SRL strategies for mathematically gifted pupils in the mainstream of primary school education.
- Full Text:
- Date Issued: 2017
- Authors: Zaram, Gyang Nyam
- Date: 2017
- Subjects: Mathematics -- Study and teaching (Elementary) -- Nigeria , Numeracy -- Study and teaching (Elementary) -- Nigeria Gifted children -- Education -- Curricula Gifted children -- Nigeria
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13381 , vital:27180
- Description: The purpose of this study was to determine whether gifted pupils can master an enriched advanced level curriculum in mathematics using self-regulated learning strategies. A mathematics curriculum for class five primary school learners in Nigeria was developed for this study. An empirical study was conducted on primary five pupils who were seen to be significantly gifted in mathematics. The study employed the quantitative method of research, that is, the true experimental research. The pre-test, post-test control group design was used. Sixty gifted pupils who participated in a mathematics enrichment programme (MEP) were assigned into two groups of the control group and experimental group with thirty pupils forming each group. The control group was exposed to direct teaching (DT) while the experimental group used self-regulated learning (SRL) strategies. Four teachers served as facilitators in the MEP. The teaching and learning activities were carried out at a higher cognitive level as opposed to the regular curriculum, ensuring that the contents of the MEP were enriched and accelerated. Pupils in both the experimental group and the control group were administered a pre-test, problem-solving exercises, and post-test. These pupils also completed an attitudinal questionnaire to provide feedback about the MEP. The empirical results show that gifted pupils in primary five are capable of self-regulating their own learning through self-monitoring, self-evaluation, and self-reinforcement. The empirical results also show that there is a significant relationship between self-regulated learning, gifted learners, and an enriched advanced level differentiated curriculum as a realistic alternative to the present regular curriculum for gifted pupils in the mainstream of education. The findings further show that the lack of differentiation of instruction, lack of facilities such as libraries, media centres, and support materials contributes to low achievement of gifted pupils. Furthermore, the findings show that pupils were challenged and motivated with the MEP to the extent that they were engaged to think divergently and applied their metacognitive skills in finding solutions to mathematical problems. Therefore, the findings of this study could have significant implications for the future direction of gifted primary school education as well as teacher education. This study has made a significant contribution to the existing body of knowledge for implementing an enriched advanced level curriculum using SRL strategies for mathematically gifted pupils in the mainstream of primary school education.
- Full Text:
- Date Issued: 2017
The retirement funding adequacy of black South Africans
- Authors: Zeka, Bomikazi
- Date: 2017
- Subjects: Retirement income -- South Africa -- Case studies South Africa -- Finance Finance, Personal
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13338 , vital:27176
- Description: Despite the importance of retirement planning, many South Africans have been documented as reaching retirement age without adequate retirement funding. A vast amount of research has been conducted on how proper retirement planning can be beneficial for individuals; however, there has been a lack of attention given to researching the retirement planning of black individuals in South Africa. Thus, the primary objective of this study was to identify, investigate and empirically test which factors influence retirement planning, and which aspects of retirement planning influence the retirement funding adequacy of black individuals. After a comprehensive literature review was undertaken on the factors influencing the retirement planning and retirement funding adequacy of individuals, the following independent variables were identified as influencing the mediating variable (Aspects of retirement planning) and the dependent variable (Retirement funding adequacy) in this study: • Financial literacy; • The role of the financial planner; • Family support structure; and • Health status. These independent variables were selected to construct a hypothesised model and research hypotheses, as they have been identified as the prominent factors that influence the retirement planning of black South Africans. Furthermore, these independent variables were used in determining whether they have an influence on the Aspects of retirement planning (incorporating Retirement provisions, Retirement attitudes and Retirement intentions) and, ultimately, improve the Retirement funding adequacy of individuals. In order to establish the influence of the aspects of retirement planning on the retirement funding adequacy of individuals, an empirical investigation was undertaken. A measuring instrument, in the form of a questionnaire, was compiled from secondary literature sources. The respondents were identified though a mixed sampling approach, whereby stratified sampling and convenience sampling were used to attain 441 usable questionnaires that were subjected to statistical analyses. Descriptive statistics, in the form of frequency distributions, were used to summarise Section A and Section B of the measuring instrument. The validity and reliability of the measuring instrument were confirmed by means of exploratory factor analyses (EFA), and Cronbach’s alpha coefficients were also calculated for this purpose. As a result of conducting the EFA, two independent variables (Family support structure and Health status) loaded together, and the factor was renamed accordingly. From the EFA, the independent variables that emerged were The role of the financial planner, Family, health, and financial well-being, and Financial literacy. Furthermore, the EFA revealed that three mediating variables emerged from the mediating variable Aspects of retirement planning. These three mediating variables were consequently named Retirement intentions, Retirement attitudes, and Retirement provisions. There were no eliminated variables in this study. Based on the results of the EFA, some of the definitions of the variables were adapted. Consequently, the hypothesised model and its research hypotheses were adapted to reflect the results of the EFA. The results of the Cronbach’s alphas calculated reported that all the measuring scales used in the questionnaire of the study were reliable. Furthermore, descriptive statistics were also calculated to summarise the sample data, and Pearson’s product moment correlations were calculated to establish the correlations between all the variables used in this study. A multiple regression analysis was used to investigate the influence of the various independent variables on the mediating variables and the dependent variable. Furthermore, structural equation modelling (SEM) was used as the main statistical procedure to test for mediation in the study. SEM was also used to assess and confirm the results of the multiple regression analyses. Based on the results of the multiple regression analyses and SEM, the hypothesised relationships of the study were accepted or rejected. Additionally, the results of SEM revealed that the revised model of the study displayed acceptable model fit. To conclude the empirical investigation, t-tests and an analysis of variance (ANOVA) tests were performed to assess whether the respondents’ perceptions of the variables used in the study differed as a result of the respondents’ demographic information. Furthermore, to establish significant differences between individual mean scores, post-hoc Tukey tests were calculated, and practical significance was assessed by calculating Cohen’s d values. The main empirical results of the study found that statistically significant relationships exist between the independent variables The role of the financial planner and Family, health, and financial well-being, and the mediating variable Retirement intentions. Furthermore, a significant relationship was found between the independent variable Financial literacy and the mediating variable Retirement attitudes. Other significant relationships were present between all the independent variables The role of the financial planner, Family, health, and financial well-being and Financial literacy, and the mediating variable Retirement provisions. The study also established statistically significant relationships between the mediating variables Retirement attitudes and Retirement provisions and the dependent variable Retirement funding adequacy. Statistically significant relationships were also present between the independent variables Family, health, and financial well-being and Financial literacy and the dependent variable Retirement funding adequacy. This study has added to the limited amount of academic literature in the field of retirement planning in South Africa. Through the hypothesised model developed in this study, a significant contribution has been made towards investigating the factors that influence the retirement planning and retirement funding adequacy of black individuals residing in South Africa. This study presents recommendations to black individuals on practical strategies that could help to improve their retirement planning and retirement funding adequacy. Furthermore, suggestions are presented to financial planners and financial institutions, in order to assist black individuals or potential clients to improve their retirement planning and to help ensure that individuals are financially independent when they reach retirement age. It is recommended that financial institutions provide financial products/services that will cater to black South Africans.
- Full Text:
- Date Issued: 2017
- Authors: Zeka, Bomikazi
- Date: 2017
- Subjects: Retirement income -- South Africa -- Case studies South Africa -- Finance Finance, Personal
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13338 , vital:27176
- Description: Despite the importance of retirement planning, many South Africans have been documented as reaching retirement age without adequate retirement funding. A vast amount of research has been conducted on how proper retirement planning can be beneficial for individuals; however, there has been a lack of attention given to researching the retirement planning of black individuals in South Africa. Thus, the primary objective of this study was to identify, investigate and empirically test which factors influence retirement planning, and which aspects of retirement planning influence the retirement funding adequacy of black individuals. After a comprehensive literature review was undertaken on the factors influencing the retirement planning and retirement funding adequacy of individuals, the following independent variables were identified as influencing the mediating variable (Aspects of retirement planning) and the dependent variable (Retirement funding adequacy) in this study: • Financial literacy; • The role of the financial planner; • Family support structure; and • Health status. These independent variables were selected to construct a hypothesised model and research hypotheses, as they have been identified as the prominent factors that influence the retirement planning of black South Africans. Furthermore, these independent variables were used in determining whether they have an influence on the Aspects of retirement planning (incorporating Retirement provisions, Retirement attitudes and Retirement intentions) and, ultimately, improve the Retirement funding adequacy of individuals. In order to establish the influence of the aspects of retirement planning on the retirement funding adequacy of individuals, an empirical investigation was undertaken. A measuring instrument, in the form of a questionnaire, was compiled from secondary literature sources. The respondents were identified though a mixed sampling approach, whereby stratified sampling and convenience sampling were used to attain 441 usable questionnaires that were subjected to statistical analyses. Descriptive statistics, in the form of frequency distributions, were used to summarise Section A and Section B of the measuring instrument. The validity and reliability of the measuring instrument were confirmed by means of exploratory factor analyses (EFA), and Cronbach’s alpha coefficients were also calculated for this purpose. As a result of conducting the EFA, two independent variables (Family support structure and Health status) loaded together, and the factor was renamed accordingly. From the EFA, the independent variables that emerged were The role of the financial planner, Family, health, and financial well-being, and Financial literacy. Furthermore, the EFA revealed that three mediating variables emerged from the mediating variable Aspects of retirement planning. These three mediating variables were consequently named Retirement intentions, Retirement attitudes, and Retirement provisions. There were no eliminated variables in this study. Based on the results of the EFA, some of the definitions of the variables were adapted. Consequently, the hypothesised model and its research hypotheses were adapted to reflect the results of the EFA. The results of the Cronbach’s alphas calculated reported that all the measuring scales used in the questionnaire of the study were reliable. Furthermore, descriptive statistics were also calculated to summarise the sample data, and Pearson’s product moment correlations were calculated to establish the correlations between all the variables used in this study. A multiple regression analysis was used to investigate the influence of the various independent variables on the mediating variables and the dependent variable. Furthermore, structural equation modelling (SEM) was used as the main statistical procedure to test for mediation in the study. SEM was also used to assess and confirm the results of the multiple regression analyses. Based on the results of the multiple regression analyses and SEM, the hypothesised relationships of the study were accepted or rejected. Additionally, the results of SEM revealed that the revised model of the study displayed acceptable model fit. To conclude the empirical investigation, t-tests and an analysis of variance (ANOVA) tests were performed to assess whether the respondents’ perceptions of the variables used in the study differed as a result of the respondents’ demographic information. Furthermore, to establish significant differences between individual mean scores, post-hoc Tukey tests were calculated, and practical significance was assessed by calculating Cohen’s d values. The main empirical results of the study found that statistically significant relationships exist between the independent variables The role of the financial planner and Family, health, and financial well-being, and the mediating variable Retirement intentions. Furthermore, a significant relationship was found between the independent variable Financial literacy and the mediating variable Retirement attitudes. Other significant relationships were present between all the independent variables The role of the financial planner, Family, health, and financial well-being and Financial literacy, and the mediating variable Retirement provisions. The study also established statistically significant relationships between the mediating variables Retirement attitudes and Retirement provisions and the dependent variable Retirement funding adequacy. Statistically significant relationships were also present between the independent variables Family, health, and financial well-being and Financial literacy and the dependent variable Retirement funding adequacy. This study has added to the limited amount of academic literature in the field of retirement planning in South Africa. Through the hypothesised model developed in this study, a significant contribution has been made towards investigating the factors that influence the retirement planning and retirement funding adequacy of black individuals residing in South Africa. This study presents recommendations to black individuals on practical strategies that could help to improve their retirement planning and retirement funding adequacy. Furthermore, suggestions are presented to financial planners and financial institutions, in order to assist black individuals or potential clients to improve their retirement planning and to help ensure that individuals are financially independent when they reach retirement age. It is recommended that financial institutions provide financial products/services that will cater to black South Africans.
- Full Text:
- Date Issued: 2017
Examining teachers' role in the promotion of child-friendly environments in Zimbabwean secondary schools : implications for teacher professional development
- Authors: Zendah, Ketiwe
- Date: 2017
- Subjects: Education, Secondary -- Zimbabwe Teachers -- Professional relationships School management and organization -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/4937 , vital:28810
- Description: Hostile school environments are a cause of concern and a perennial international educational problem. The UNICEF’s Child-Friendly Schools (CFS) approach is an international intervention meant to safeguard learners against hostile school environments. The CFS approach mandates schools to offer learners environments and conditions that uphold children’s rights and enhance their development to full potential. The purpose of this mixed methods research study, employing a concurrent triangulation design, was to explore the role of teachers in the promotion of CFS environments. Holsti’s (1970) role theory formed the theoretical framework of this study. The research questions focused on teachers’ understanding of the CFS concept, support offered, strategies employed, challenges encountered, and the implications for teacher professional development. The data collection methods were questionnaires, in-depth interviews, and document analysis with school heads, teachers and learners in the seven government urban secondary schools in Mutare district of Manicaland province in Zimbabwe. Quantitative and qualitative data were independently analysed and merged at the interpretation stage through triangulation of results. Major findings reveal that teachers have poor understanding of the CFS concept, are offered moderate support, occasionally employ viable strategies, and are hindered by various factors in the process of promoting CFS environments. The study’s implications for teacher professional development are rooted in identifying sustainable approaches that adequately equip teachers with relevant information, skills and attitudes that ensure the promotion of CFS environments.
- Full Text:
- Date Issued: 2017
- Authors: Zendah, Ketiwe
- Date: 2017
- Subjects: Education, Secondary -- Zimbabwe Teachers -- Professional relationships School management and organization -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/4937 , vital:28810
- Description: Hostile school environments are a cause of concern and a perennial international educational problem. The UNICEF’s Child-Friendly Schools (CFS) approach is an international intervention meant to safeguard learners against hostile school environments. The CFS approach mandates schools to offer learners environments and conditions that uphold children’s rights and enhance their development to full potential. The purpose of this mixed methods research study, employing a concurrent triangulation design, was to explore the role of teachers in the promotion of CFS environments. Holsti’s (1970) role theory formed the theoretical framework of this study. The research questions focused on teachers’ understanding of the CFS concept, support offered, strategies employed, challenges encountered, and the implications for teacher professional development. The data collection methods were questionnaires, in-depth interviews, and document analysis with school heads, teachers and learners in the seven government urban secondary schools in Mutare district of Manicaland province in Zimbabwe. Quantitative and qualitative data were independently analysed and merged at the interpretation stage through triangulation of results. Major findings reveal that teachers have poor understanding of the CFS concept, are offered moderate support, occasionally employ viable strategies, and are hindered by various factors in the process of promoting CFS environments. The study’s implications for teacher professional development are rooted in identifying sustainable approaches that adequately equip teachers with relevant information, skills and attitudes that ensure the promotion of CFS environments.
- Full Text:
- Date Issued: 2017
The impact of family preservation and family reunification services on families in South Africa: a case study of Amathole District Municipality in the Eastern Cape Province
- Authors: Zimba, Zibonele France
- Date: 2017
- Subjects: Family services Dysfunctional families -- South Africa -- Eastern Cape Family social work -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , Degree
- Identifier: http://hdl.handle.net/10353/3088 , vital:28260
- Description: Families in communities remain vulnerable and, apart from poverty, face a host of other crises and challenges on a daily basis. Amongst the challenges that families face, children are affected most. Services targeting families with very young children therefore are imperative. This study was aimed at exploring the impact of family preservation and family reunification services on families in South Africa, with a focus on the Eastern Cape Province. To answer the research questions of this study, the research adopted a mixed methods design known as methodological triangulation. The study incorporated two sets of participants, Social Workers and heads of families that benefit from family preservation and family reunification services. The total sample for the study included 260 participants; 220 of the participants were heads of families and 40 of the participants were Social Workers. Questionnaires were administered to 200 heads of families and 20 Social Workers selected by means of the random sampling technique. In addition, 20 heads of families and 20 Social Workers who participated in in-depth interviews were purposively selected. The quantitative data were analysed by means of the Statistical Package for the Social Sciences (SPSS) and qualitative data were categorised with the use of themes and subthemes
- Full Text:
- Date Issued: 2017
- Authors: Zimba, Zibonele France
- Date: 2017
- Subjects: Family services Dysfunctional families -- South Africa -- Eastern Cape Family social work -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , Degree
- Identifier: http://hdl.handle.net/10353/3088 , vital:28260
- Description: Families in communities remain vulnerable and, apart from poverty, face a host of other crises and challenges on a daily basis. Amongst the challenges that families face, children are affected most. Services targeting families with very young children therefore are imperative. This study was aimed at exploring the impact of family preservation and family reunification services on families in South Africa, with a focus on the Eastern Cape Province. To answer the research questions of this study, the research adopted a mixed methods design known as methodological triangulation. The study incorporated two sets of participants, Social Workers and heads of families that benefit from family preservation and family reunification services. The total sample for the study included 260 participants; 220 of the participants were heads of families and 40 of the participants were Social Workers. Questionnaires were administered to 200 heads of families and 20 Social Workers selected by means of the random sampling technique. In addition, 20 heads of families and 20 Social Workers who participated in in-depth interviews were purposively selected. The quantitative data were analysed by means of the Statistical Package for the Social Sciences (SPSS) and qualitative data were categorised with the use of themes and subthemes
- Full Text:
- Date Issued: 2017
Information and propaganda in the federation of Rhodesia and Nyasaland with special reference to print and radio propaganda for Africans, 1953-1963
- Authors: Zimudzi, Tapiwa Brown
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/6957 , vital:21204
- Description: This thesis contributes to the history of the information and propaganda policy and practice of the government of the Federation of Rhodesia and Nyasaland by examining this government's pro-Federation print and radio propaganda for Africans in the Federation. Using a multi-theoretical approach, it analyses the character of this propaganda, highlighting its main methods and themes as well as the policy considerations, plus political and economic circumstances that gave rise to it. It also discusses how Africans in the Federation reacted to this propaganda and assesses its effectiveness in gaining the support of these Africans for Federation and the policies of the Federal government. The thesis argues that Federal government propaganda aimed at gaining the support of Africans for Federation was predominantly panic-driven propaganda and was the product of an information panic that lay at the heart of the very idea of Federation itself. This information panic arose out of the Federal government's belated recognition of the strength of African opposition to Federation and of how this opposition seriously threatened the continued survival of the Federation. It is also argued that this panic-driven pro-Federation propaganda elicited largely hostile reactions from the majority of Africans in the Federation and failed to persuade them to support Federation.
- Full Text:
- Date Issued: 2017
- Authors: Zimudzi, Tapiwa Brown
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/6957 , vital:21204
- Description: This thesis contributes to the history of the information and propaganda policy and practice of the government of the Federation of Rhodesia and Nyasaland by examining this government's pro-Federation print and radio propaganda for Africans in the Federation. Using a multi-theoretical approach, it analyses the character of this propaganda, highlighting its main methods and themes as well as the policy considerations, plus political and economic circumstances that gave rise to it. It also discusses how Africans in the Federation reacted to this propaganda and assesses its effectiveness in gaining the support of these Africans for Federation and the policies of the Federal government. The thesis argues that Federal government propaganda aimed at gaining the support of Africans for Federation was predominantly panic-driven propaganda and was the product of an information panic that lay at the heart of the very idea of Federation itself. This information panic arose out of the Federal government's belated recognition of the strength of African opposition to Federation and of how this opposition seriously threatened the continued survival of the Federation. It is also argued that this panic-driven pro-Federation propaganda elicited largely hostile reactions from the majority of Africans in the Federation and failed to persuade them to support Federation.
- Full Text:
- Date Issued: 2017