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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Sintese van amino-arielaldehied verbindings / Marlene Prinsloo

Prinsloo, Marlene January 2015 (has links)
Die soeke na sterk hoë-verrigtingspolimere het gelei tot die idee om ʼn volledig gekonjugeerde polimeer te ontwikkel vir moontlike gebruik in die motorindustrie. Hierdie polimeer moet soortgelyke eienskappe as dié van Kevlar besit, aangesien die beoogde polimeer vir die bakwerk van battery-aangedrewe voertuie gebruik sou kon word. Die selfpolimerisasie van 4,6-diaminobenseen-1,3-dikarbaldehied is as die gewenste gekonjugeerde polimeer beskou. Tydens die studie is daar gefokus op die sintese van die monomeer 4,6-diaminobenseen- 1,3-dikarbaldehied. Die sintese van monomere wat beide funksionele groepe wat aan die polimerisasie deelneem, op dieselfde molekuul besit, was uitdagend, omdat hierdie monomere baie maklik selfpolimerisasie kan ondergaan. Hierdie studie het ook na groener en korter sinteseroetes om 4,6-diaminobenseen-1,3-dikarbaldehied of derivate daarvan te sintetiseer gekyk, aangesien die sintese van 4,6-diaminobenseen-1,3-dikarbaldehied in die verlede met baie lang sinteseroetes en gevaarlike chemikalieë uitgevoer is. Sintese van 1,5-dibromo-2,4-dimetielbenseen (1), 1,5-dibromo-2,4-bis(dibromometiel)- benseen (2), 4,6-dibromobenseen-1,3-dikarbaldehied (3) en 1,3-bis([1,3]dioksolaan)-4,6- dibromobenseen (5) is suksesvol uitgevoer, maar tydens die koper-gekataliseerde Ullmanntipe reaksies om 4,6-diaminobenseen-1,3-dikarbaldehied (4) te sintetiseer, het slegs poeiers gevorm wat nie oplosbaar in organiese oplosmiddels is nie. Om die selfpolimerisasie moontlikhede van 4 uit te skakel is 5 gesintetiseer. ʼn Poging om 1,3-bis([1,3]dioksolaan)- 4,6-diaminobenseen (6a) vanaf 5 te sintetiseer het egter tot geen reaksie gelei nie. Molekuulmodellering van die Ullmann-tipe reaksies om 6a en 4,6-dimetielbenseen-1,3- diamien te sintetiseer is gedoen om die reaksie te ondersoek. Daar is gevind dat ʼn 1,3- diketoonligand wat aan die koperkatalisator bind, nodig is om die reaksie te verbeter. Vanuit die resultate van die studie is ook gevind dat ʼn Ullmann-tipe reaksie nie met 5 sal plaasvind nie, aangesien dit energeties nie so voordelig is nie. Spektroskopiese analise van die poeiers wat tydens die sintese van 4 gevorm het, bevestig dat die poeiers polimere is. Dit blyk egter dat dit nie die voorgestelde rigiede polimeer is wat gevorm het nie, maar dat dit eerder ʼn amorfe kinasolientipe produk is. / MSc (Chemistry), North-West University, Potchefstroom Campus, 2015
2

Sintese van amino-arielaldehied verbindings / Marlene Prinsloo

Prinsloo, Marlene January 2015 (has links)
Die soeke na sterk hoë-verrigtingspolimere het gelei tot die idee om ʼn volledig gekonjugeerde polimeer te ontwikkel vir moontlike gebruik in die motorindustrie. Hierdie polimeer moet soortgelyke eienskappe as dié van Kevlar besit, aangesien die beoogde polimeer vir die bakwerk van battery-aangedrewe voertuie gebruik sou kon word. Die selfpolimerisasie van 4,6-diaminobenseen-1,3-dikarbaldehied is as die gewenste gekonjugeerde polimeer beskou. Tydens die studie is daar gefokus op die sintese van die monomeer 4,6-diaminobenseen- 1,3-dikarbaldehied. Die sintese van monomere wat beide funksionele groepe wat aan die polimerisasie deelneem, op dieselfde molekuul besit, was uitdagend, omdat hierdie monomere baie maklik selfpolimerisasie kan ondergaan. Hierdie studie het ook na groener en korter sinteseroetes om 4,6-diaminobenseen-1,3-dikarbaldehied of derivate daarvan te sintetiseer gekyk, aangesien die sintese van 4,6-diaminobenseen-1,3-dikarbaldehied in die verlede met baie lang sinteseroetes en gevaarlike chemikalieë uitgevoer is. Sintese van 1,5-dibromo-2,4-dimetielbenseen (1), 1,5-dibromo-2,4-bis(dibromometiel)- benseen (2), 4,6-dibromobenseen-1,3-dikarbaldehied (3) en 1,3-bis([1,3]dioksolaan)-4,6- dibromobenseen (5) is suksesvol uitgevoer, maar tydens die koper-gekataliseerde Ullmanntipe reaksies om 4,6-diaminobenseen-1,3-dikarbaldehied (4) te sintetiseer, het slegs poeiers gevorm wat nie oplosbaar in organiese oplosmiddels is nie. Om die selfpolimerisasie moontlikhede van 4 uit te skakel is 5 gesintetiseer. ʼn Poging om 1,3-bis([1,3]dioksolaan)- 4,6-diaminobenseen (6a) vanaf 5 te sintetiseer het egter tot geen reaksie gelei nie. Molekuulmodellering van die Ullmann-tipe reaksies om 6a en 4,6-dimetielbenseen-1,3- diamien te sintetiseer is gedoen om die reaksie te ondersoek. Daar is gevind dat ʼn 1,3- diketoonligand wat aan die koperkatalisator bind, nodig is om die reaksie te verbeter. Vanuit die resultate van die studie is ook gevind dat ʼn Ullmann-tipe reaksie nie met 5 sal plaasvind nie, aangesien dit energeties nie so voordelig is nie. Spektroskopiese analise van die poeiers wat tydens die sintese van 4 gevorm het, bevestig dat die poeiers polimere is. Dit blyk egter dat dit nie die voorgestelde rigiede polimeer is wat gevorm het nie, maar dat dit eerder ʼn amorfe kinasolientipe produk is. / MSc (Chemistry), North-West University, Potchefstroom Campus, 2015
3

Depressive symptoms and cardiometabolic health in urban black Africans : the SABPA study / Nyiko Mashele

Mashele, Nyiko January 2014 (has links)
Motivation - Depression is a mental disorder that has been associated with cardiovascular morbidity and mortality in the Western world. Cardiometablic mechanisms have been implicated as possible intermediating factors in the relationship between depressive symptoms and cardiovascular disease; however this has not yet been determined in black Africans (hereafter referred to as Africans). Aim - The overarching aim of this study was to investigate the relationship between depressive symptoms and cardiometabolic risk. We therefore aimed to assess cardiometabolic function, neuroendocrine responses, inflammatory and haemostatic markers in Africans with depressive symptoms compared to those without symptoms of depression. Methodology - Manuscripts presented in Chapter 2, 3 and 4 utilised data from the cross-sectional, target population multi-disciplinary “Sympathetic activity and Ambulatory Blood Pressure in Africans” (SABPA) study. The participants comprised of 200 African teachers from the Dr Kenneth Kaunda District in North-West province, South Africa. As cardiovascular disease is compromised by a positive HIV status, 19 participants were excluded from further statistical analysis. Stratification was based on the Patient Health Questionnaire 9-item (PHQ-9), which has been validated in a sub-Saharan African setting. PHQ-9 scores > 10 were used to classify participants as having signs of depressive symptoms. Subjects were further stratified by gender (Manuscript 1 and 3) and cortisol responses (Manuscript 2). Cardiometabolic health measures included 24-hour blood pressure, metabolic syndrome markers, neuroendocrine markers [cortisol and 3-methoxy-4-hydroxy-phenylglycol (MHPG)], left ventricular hypertrophy (LVH),inflammatory and haemostatic markers (fibrinogen, C-reactive protein, plasminogen activator inhibitor-1 and D-dimer). Resting 12-lead ECG Cornell Product-Left ventricular hypertrophy (CP-LVH) was measured as a marker of target end-organ damage and cardiovascular dysfunction (Manuscript 1 and 2). Means and prevalence were computed through t-test and Chi-square analysis respectively. Significant differences of mean cardiometabolic measures between depressive symptom status groups were also determined by analysis of covariance (adjusted for traditional cardiovascular risk factors and additional factors as specific per manuscript). Multivariate analysis was used to demonstrate associations between left ventricular hypertrophy (LVH) and cardiometabolic markers in Africans with depressive symptoms (Manuscript 1 and 2) and a logistic regression analysis were performed to examine the association between depressive symptoms and inflammatory/haemostatic factors (Manuscript 3). All subjects who participated gave informed consent, the study was approved by the Ethics Committee of North-West University (NWU-0003607S6), in accordance with the principles outlined by the World Medical Association Declaration of Helsinki of 1975 (revised 2008). Results and conclusions of the individual manuscripts - The aim of the study was to investigate the associations between depressive symptoms and cardiometabolic function including cardiovascular dysfunction. Markers of cardiometabolic function assessed were 24 hour blood pressure measurements, metabolic syndrome markers, neuroendocrine markers [cortisol and 3-methoxy-4-hydroxy-phenylglycol (MHPG)], inflammatory and haemostatic variables (fibrinogen, C-reactive protein, plasminogen activator inhibitor-1 and D-dimer). Manuscript 1, focused on LVH as a marker of cardiovascular dysfunction and metabolic syndrome components as markers of cardiometabolic function. The aim of the study was to assess the associations between LVH and metabolic syndrome (MetS) risk markers in participants with and without depressive symptoms. Results revealed that in African men with depressive symptoms the most significant determinants of LVH were systolic blood pressure (SBP) and the percentage glycosylated haemoglobin (HbA1c). While in African women (with depressive symptoms), this association was determined by low high-density lipoprotein (HDL-cholesterol). The study concluded that in black African men, independent of depressive symptoms, cardiometabolic factors (namely SBP and HbA1c) may be the driving significant factors in the development of cardiovascular diseases. Furthermore, the data showed that depressive symptoms in African women were associated with a measure of target end organ damage, and that this association was driven by a metabolic factor. Manuscript 2, the aim of this manuscript was to examine the relationship between depressive symptoms, neuroendocrine responses [with cortisol and 3-methoxy-phenylglycol (MHPG) as markers] and cardiovascular risk, i.e. LVH. The results revealed that Africans with depressive symptoms demonstrated blunted cortisol and MHPG levels in response to acute mental stress, in comparison to those without symptoms of depression. Additionally, these low cortisol and blunted MHPG responses were associated with LVH in this ethnic group. The conclusion for this manuscript was that, blunted neuroendocrine responses linked depressive symptoms and ECG left ventricular hypertrophy in Africans. When coupled to their hypertensive status, these vasoconstrictive responses (cortisol and MHPG) may underpin the increased long-term depression and vascular disease risk in urban Africans. Manuscript 3, the aim of this manuscript was to investigate the relationship between depressive symptoms and inflammatory/haemostatic markers in a cohort of urban-dwelling black African men and women. Our data demonstrated hypercoagulation vulnerability in African men with depressive symptoms. The African men with signs of depression displayed higher plasminogen activator inhibitor (PAI-1) levels and marginally elevated D-dimer levels. It was concluded that hypercoagulation may partially be the mediating factor between depressive symptoms and cardiovascular risk in African men; a situation that may be exacerbated by hyperkinetic blood pressure. In conclusion, through the assessement of cardiometabolic function and neuroendocrine responses, it seems that Africans withdepressive symptoms are at great risk for cardiovascular related morbidity and mortality, this was particulary evident in the African men (Manuscript 1 and 3). Additionally, it appears that blunted neuroendocrine responses and hypercoagulation could be seen as possible cardiovascular risk markers in Africans with depressive symptoms. / PhD (Physiology), North-West University, Potchefstroom Campus, 2014
4

Depressive symptoms and cardiometabolic health in urban black Africans : the SABPA study / Nyiko Mashele

Mashele, Nyiko January 2014 (has links)
Motivation - Depression is a mental disorder that has been associated with cardiovascular morbidity and mortality in the Western world. Cardiometablic mechanisms have been implicated as possible intermediating factors in the relationship between depressive symptoms and cardiovascular disease; however this has not yet been determined in black Africans (hereafter referred to as Africans). Aim - The overarching aim of this study was to investigate the relationship between depressive symptoms and cardiometabolic risk. We therefore aimed to assess cardiometabolic function, neuroendocrine responses, inflammatory and haemostatic markers in Africans with depressive symptoms compared to those without symptoms of depression. Methodology - Manuscripts presented in Chapter 2, 3 and 4 utilised data from the cross-sectional, target population multi-disciplinary “Sympathetic activity and Ambulatory Blood Pressure in Africans” (SABPA) study. The participants comprised of 200 African teachers from the Dr Kenneth Kaunda District in North-West province, South Africa. As cardiovascular disease is compromised by a positive HIV status, 19 participants were excluded from further statistical analysis. Stratification was based on the Patient Health Questionnaire 9-item (PHQ-9), which has been validated in a sub-Saharan African setting. PHQ-9 scores > 10 were used to classify participants as having signs of depressive symptoms. Subjects were further stratified by gender (Manuscript 1 and 3) and cortisol responses (Manuscript 2). Cardiometabolic health measures included 24-hour blood pressure, metabolic syndrome markers, neuroendocrine markers [cortisol and 3-methoxy-4-hydroxy-phenylglycol (MHPG)], left ventricular hypertrophy (LVH),inflammatory and haemostatic markers (fibrinogen, C-reactive protein, plasminogen activator inhibitor-1 and D-dimer). Resting 12-lead ECG Cornell Product-Left ventricular hypertrophy (CP-LVH) was measured as a marker of target end-organ damage and cardiovascular dysfunction (Manuscript 1 and 2). Means and prevalence were computed through t-test and Chi-square analysis respectively. Significant differences of mean cardiometabolic measures between depressive symptom status groups were also determined by analysis of covariance (adjusted for traditional cardiovascular risk factors and additional factors as specific per manuscript). Multivariate analysis was used to demonstrate associations between left ventricular hypertrophy (LVH) and cardiometabolic markers in Africans with depressive symptoms (Manuscript 1 and 2) and a logistic regression analysis were performed to examine the association between depressive symptoms and inflammatory/haemostatic factors (Manuscript 3). All subjects who participated gave informed consent, the study was approved by the Ethics Committee of North-West University (NWU-0003607S6), in accordance with the principles outlined by the World Medical Association Declaration of Helsinki of 1975 (revised 2008). Results and conclusions of the individual manuscripts - The aim of the study was to investigate the associations between depressive symptoms and cardiometabolic function including cardiovascular dysfunction. Markers of cardiometabolic function assessed were 24 hour blood pressure measurements, metabolic syndrome markers, neuroendocrine markers [cortisol and 3-methoxy-4-hydroxy-phenylglycol (MHPG)], inflammatory and haemostatic variables (fibrinogen, C-reactive protein, plasminogen activator inhibitor-1 and D-dimer). Manuscript 1, focused on LVH as a marker of cardiovascular dysfunction and metabolic syndrome components as markers of cardiometabolic function. The aim of the study was to assess the associations between LVH and metabolic syndrome (MetS) risk markers in participants with and without depressive symptoms. Results revealed that in African men with depressive symptoms the most significant determinants of LVH were systolic blood pressure (SBP) and the percentage glycosylated haemoglobin (HbA1c). While in African women (with depressive symptoms), this association was determined by low high-density lipoprotein (HDL-cholesterol). The study concluded that in black African men, independent of depressive symptoms, cardiometabolic factors (namely SBP and HbA1c) may be the driving significant factors in the development of cardiovascular diseases. Furthermore, the data showed that depressive symptoms in African women were associated with a measure of target end organ damage, and that this association was driven by a metabolic factor. Manuscript 2, the aim of this manuscript was to examine the relationship between depressive symptoms, neuroendocrine responses [with cortisol and 3-methoxy-phenylglycol (MHPG) as markers] and cardiovascular risk, i.e. LVH. The results revealed that Africans with depressive symptoms demonstrated blunted cortisol and MHPG levels in response to acute mental stress, in comparison to those without symptoms of depression. Additionally, these low cortisol and blunted MHPG responses were associated with LVH in this ethnic group. The conclusion for this manuscript was that, blunted neuroendocrine responses linked depressive symptoms and ECG left ventricular hypertrophy in Africans. When coupled to their hypertensive status, these vasoconstrictive responses (cortisol and MHPG) may underpin the increased long-term depression and vascular disease risk in urban Africans. Manuscript 3, the aim of this manuscript was to investigate the relationship between depressive symptoms and inflammatory/haemostatic markers in a cohort of urban-dwelling black African men and women. Our data demonstrated hypercoagulation vulnerability in African men with depressive symptoms. The African men with signs of depression displayed higher plasminogen activator inhibitor (PAI-1) levels and marginally elevated D-dimer levels. It was concluded that hypercoagulation may partially be the mediating factor between depressive symptoms and cardiovascular risk in African men; a situation that may be exacerbated by hyperkinetic blood pressure. In conclusion, through the assessement of cardiometabolic function and neuroendocrine responses, it seems that Africans withdepressive symptoms are at great risk for cardiovascular related morbidity and mortality, this was particulary evident in the African men (Manuscript 1 and 3). Additionally, it appears that blunted neuroendocrine responses and hypercoagulation could be seen as possible cardiovascular risk markers in Africans with depressive symptoms. / PhD (Physiology), North-West University, Potchefstroom Campus, 2014
5

Emotional antecedents of customer loyalty in the formal retail industry of South Africa

Yao, Valery Yao 05 1900 (has links)
Text in English with abstracts in Zulu and Afrikaans / Despite its substantial growth and contribution to the economy of the country, the South African retail industry is faced with various challenges, including customers’ changing buying habits and expectations, the evolution of e-commerce, the entry of giant retailers into the retail market, and the growing importance of the urbanised middle class and its potential purchasing power. This creates risks that are mostly beyond retailers’ control. Therefore, there is a general drive among retail brands to build customer loyalty in order to respond to these contemporary dynamics within the industry and, ultimately, enhance sustainability. It is noted from literature that current understanding of customer behaviour in the South African retail space is largely the result of rational behavioural measurement, while the subconscious behaviour of customers is often neglected. The study on which this thesis reports attempted to address this gap in the current knowledge base. The current study makes a novel contribution to knowledge in using complementary traditional and neuromarketing instruments in a sequential mixed method research design to measure verbal, non-verbal and physiological emotions, which indicate the key influential cognitive and emotive factors shaping shopping decisions. For a comprehensive understanding of customer behaviour, the study primarily explored the emotional antecedents of customer loyalty in the formal retail industry of South Africa. In order to explore and describe both retail brands and customers’ experiences regarding the drivers of retail brand loyalty, the empirical phase of the study adopted a sequential mixed method research design. This design comprised eight individual semi-structured interviews, which focused on and explored the fundamentals of behavioural and attitudinal loyalty within the context of a customer relationship management strategy. x Based on the findings emerging from the quantitative mall intercept survey with 300 retail customers, the study identified the motivating factors of greatest likelihood among customers that best explain retail brand loyalty, namely product quality, convenience of location, customer care, product variety and availability, as well as fair pricing. Furthermore, findings emerging from the inferential analysis (structural equation modelling, two-step cluster analysis, optimal scaling and multivariate binary regression analysis) showed that brand trust, brand affect and attitudinal loyalty are key predictors of behavioural loyalty. Additionally, customer loyalty differs depending on customer predisposition towards the major retail brands tested. In this regard, Pick n Pay, Massmart and Shoprite/Checkers recorded the most favourable perceptions among customers. As Despite its substantial growth and contribution to the economy of the country, the South African retail industry is faced with various challenges, including customers’ changing buying habits and expectations, the evolution of e-commerce, the entry of giant retailers into the retail market, and the growing importance of the urbanised middle class and its potential purchasing power. This creates risks that are mostly beyond retailers’ control. Therefore, there is a general drive among retail brands to build customer loyalty in order to respond to these contemporary dynamics within the industry and, ultimately, enhance sustainability. It is noted from literature that current understanding of customer behaviour in the South African retail space is largely the result of rational behavioural measurement, while the subconscious behaviour of customers is often neglected. The study on which this thesis reports attempted to address this gap in the current knowledge base. The current study makes a novel contribution to knowledge in using complementary traditional and neuromarketing instruments in a sequential mixed method research design to measure verbal, non-verbal and physiological emotions, which indicate the key influential cognitive and emotive factors shaping shopping decisions. For a comprehensive understanding of customer behaviour, the study primarily explored the emotional antecedents of customer loyalty in the formal retail industry of South Africa. In order to explore and describe both retail brands and customers’ experiences regarding the drivers of retail brand loyalty, the empirical phase of the study adopted a sequential mixed method research design. This design comprised eight individual semi-structured interviews, which focused on and explored the fundamentals of behavioural and attitudinal loyalty within the context of a customer relationship management strategy. x Based on the findings emerging from the quantitative mall intercept survey with 300 retail customers, the study identified the motivating factors of greatest likelihood among customers that best explain retail brand loyalty, namely product quality, convenience of location, customer care, product variety and availability, as well as fair pricing. Furthermore, findings emerging from the inferential analysis (structural equation modelling, two-step cluster analysis, optimal scaling and multivariate binary regression analysis) showed that brand trust, brand affect and attitudinal loyalty are key predictors of behavioural loyalty. Additionally, customer loyalty differs depending on customer predisposition towards the major retail brands tested. In this regard, Pick n Pay, Massmart and Shoprite/Checkers recorded the most favourable perceptions among customers. As a complement to the quantitative research phase of the study, a Self-Assessment Manikin attitude measure was applied to a sample of 120 customers. This phase of the study highlighted pertinent emotional elements as key mediators in securing sustainable retail brand loyalty. In this regard, Woolworths and Pick n Pay recorded the most favourable perceptions on four stimuli, namely quality, customer rewards, customer care and brand logos. The study also applied eye tracking and galvanic skin response techniques to a sample of 10 participants to determine customers’ psychophysiological reaction to the four stimuli. Galvanic skin response findings showed that customers were especially engaged with Spar, Shoprite/Checkers and Pick n Pay, while eye tracking findings showed customers’ higher visual engagement with Shoprite/Checkers, Pick n Pay and Spar. A key overall finding of this study was the significant role of feelings and emotions in driving customer loyalty. Retail brands lose relevance when they fail to connect emotionally with customers, and without that emotional attachment, brands can easily be replaced by generic imposters. A comprehensive understanding of customer behaviour remains a quandary for marketing and business practitioners. In an attempt to address this limitation, the current study used insights from non-verbal attitudinal and psychophysiological measures to obtain a more comprehensive behavioural understanding of retail customers. / Nakuba imboni yezitolo ezihwebayo yaseNingizimu Afrika ibonise ukukhula nokudlondlobala okukhulu futhi idlala indima esemqoka emnothweni wezwe, ibhekene nezinselelo eziningana futhi ezihlukahlukene, kubandakanya indlelakuthenga yamakhasimende eguquguqukayo kanye nalokho okulindelwe ngamakhasimende nezimfuno zawo, ukungenisa ngezinkani kwemboni yokuhweba nge-intanethi nobuxhakaxhaka bobuchwepheshe besimanjemanje, ukungena kwezitolo eziyizikhondlakhondla emakethe yezitolo ezihwebayo, kanye nokukhula kokubaluleka kwabantu abahlala emadolobheni abasesigabeni sempilo esimaphakathi kanye namandla abo okuthenga. Lokhu kudala ubungozi obuvamise ukuba ngaphezu kwamandla nolawulo lwezitolo ezihwebayo. Ngakho-ke, kunomkhankaso oqhutshwa yizitolo zonkana ezihlose ngawo ukwakha ubudlelwano namakhasimende kanye nokuqinisekisa ukwethembeka kwamakhasimende ukuze zikwazi ukumelana nezimo ezikhona esikhathini samanje embonini yezitolo ezihwebayo, futhi ekugcineni, ukuze zikwazi ukusimamisa ibhizinisi lazo liqhubeke njalo futhi likhule lidlondlobale. Kuphawulekile emibhalweni efundiwe ukuthi ukuqonda kanye nolwazi olujulile olukhona njengamanje mayelana nokuziphatha kwamakhasimende eNingizimu Afrika emkhakheni wezitolo ezihwebayo ikakhulukazi kuwumphumela wokukalwa kwezinga lokuthatha izinqumo ngobuhlakani nokwenza izinto emva kokucabangisisa, kepha-ke ngakolunye uhlangothi kuvamise ukushaywa indiva ukwenza izinto kwamakhasimende ngaphandle kokuqaphela nokucophelela futhi ngokuthathela izinto phezulu noma ngaphandle kokucabangisisa ngalokho akwenzayo. Lolu cwaningo okubikwa ngalo kulo mbiko wocwaningo luzamile ukubhekana naleli gebe elikhona njengamanje eliphathelene nokuntuleka kolwazi. Lolu cwaningo lwamanje lufaka isandla esinohlonze kanye nemibono ephusile olwazini olukhona, ngokusebenzisa amathuluzi asekelayo ajwayelekile kanye nalawo asebenzisa ubuchwepheshe bokukala ukusebenza kwengqondo, ngaphansi kwedizayini yocwaningo egxile kwindlela-kusebenza exubile yokwenza izinto ngokulandelana kwazo, ngenhloso yokukala imizwa ezwakaliswa ngomlomo, ngezenzo noma ngeminyakazo yomzimba, okuyinto ebonisa izimo nezici-bunjalo ezisemqoka futhi ezinomthelela omkhulu eziphathelene nokusebenza kwengqondo kanye nemizwa, okuyizona ezilawula izinqumo zamakhasimende eziphathelene nokuthenga. Ngenhloso yokuqonda ngokuphelele ukuziphatha kwamakhasimende, lolu cwaningo lwacubungula futhi lwahlaziya ikakhulukazi izici-bunjalo zemizwa elawula ukwethembeka kwamakhasimende embonini yezitolo ehlelekile yaseNingizimu Afrika. Ukuze kucutshungulwe futhi kuchazwe kokubili izinhlobo zezitolo kanye nezimo ahlangabezane nazo amakhasimende mayelana nezici-bunjalo ezenza amakhasimende athembeke esitolo esithile futhi athenge kusona ngaso sonke isikhathi, isigaba socwaningo esiphathelene nolwazi oluphathekayo nolubonakalayo sasebenzisa idizayini yocwaningo egxile kwindlela-kusebenza exubile yokwenza izinto ngokulandelana kwazo. Le dizayini beyibandakanya ama-semi-structured interviews enziwa nababambiqhaza bocwaningo abayisishiyagalombili, okuyizingxoxo ezabe zigxile ekucubunguleni ukwethembeka kwamakhasimende okuphathelene nokuziphatha kwawo kanye nendlela abuka ngayo izinto ngaphansi kwesimo seqhingasu lokuphathwa kobudlelwano namakhasimende. Ngokususela kwimiphumela eyatholakala kwinhlolovo ebandakanya abathengi abangama-300 okwaxoxiswana nabo ezikhungweni ezinenxanxathela yezitolo, ucwaningo lwahlonza izimo nezi-bunjalo ezikhuthaza futhi zihehe amakhasimende okuyizona ezingasetshenziswa ukuchaza kangcono ukwethembeka kwamakhasimende ezitolo ezithile, okuyikhwalithi yomkhiqizo, ukufinyeleleka kalula kwendawo lapho kutholakala khona isitolo, ukunakekelwa kwamakhasimende, imikhiqizo ehlukahlukene kanye nokutholakala kwayo, ngokunjalo namanani-ntengo angambi eqolo. Ngaphezu kwalokho, imiphumela eyatholakala ohlaziyweni lwezinqumo ezithathwe ngokubheka ubufakazi kanye nokuqonda okujulile (structural equation modelling, two-step cluster analysis, optimal scaling kanye ne-multivariate binary regression analysis) yabonisa ukuthi ukwethenjwa kohlobo lomkhiqizo, ukukhanga nokuthandeka komkhiqizo kanye nokwethembeka okuphathelene nendlela-kubuka kuyizibikezeli ezisemqoka zokuziphatha kwamakhasimende okuhambisana nokwethembeka emikhiqizweni ethile. Futhi ngaphezu kwalokho, ukwethembeka kwamakhasimende kuyehluka, futhi lokhu kuncike ekuhehelekeleni kwamakhasimende ezitolo enkulu ezihloliwe. Mayelana nalokhu-ke, abakwa-Pick n Pay, Massmart kanye nabakwa-Shoprite/Checkers yizona zitolo ezibonise ukuthandwa kakhulu ngamakhasimende. Njengendlela yokweseka nokunezezela phezu kwesigaba socwaningo olukhwantithethivu olwenziwe, kwasetshenziswa isikali sendlela-kubuka esibizwa nge-Self-Assessment Manikin kwisampula yamakhasimende ayi-120. Lesi sigaba socwaningo saqhakambisa izimo nezici-bunjalo eziphathelene nemizwa ezifanelekile njengezinto ezisemqoka kakhulu ekuqinisekiseni ukwethembeka kwamakhasimende esitolo esithile ngokuqhubekayo. Mayelana nalokhu, abakwa-Woolworths kanye nabakwa-Pick n Pay babonisa ukuthandwa kakhulu ngamakhasimende mayelana nezici-bunjalo ezihehayo futhi ezikhuthazayo ezine, okuyikhwalithi, imivuzo yamakhasimende, ukunakekelwa kwamakhasimende kanye nemibala egqamile, igama elidumile nezimpawu zesitolo. Ucwaningo lwasebenzisa futhi nezindlela zokucwaninga eziphathelene nokulandela umkhondo wamehlo amakhasimende kanye nezimpawu zemizwa yamakhasimende ezibonakala esikhumbeni semizimba yawo, okuyizindlela zocwaningo ezasetshenziswa kubabambiqhaza bocwaningo abayi-10 ngenhloso yokuhlonza indlela-kusabela kwamakhasimende ephathelene nengqondo nomzimba kulezi zicibunjalo ezikhuthazayo futhi ezihehayo ezine ezishiwo ngenhla. Imiphumela yendlela yocwaningo ebheka izimpawu zemizwa yamakhasimende ezibonakala esikhumbeni semizimba yawo yabonisa ukuthi amakhasimende ahehelekela ikakhulukazi kwabakwa-Spar, Shoprite/Checkers kanye nabakwa-Pick n Pay, kanti ngakolunye uhlangothi imiphumela yendlela yocwaningo ebheka futhi ilandele umkhondo wamehlo amakhasimende yabonisa ukuheheka kwamehlo okuphakeme ezitolo zabakwa-Shoprite/Checkers, Pick n Pay kanye nabakwa-Spar. Umphumela omkhulu futhi osemqoka otholakale kulolu cwaningo yindima ebaluleke kakhulu edlalwa yimizwa ekukhuthazeni ukwethembeka kwamakhasimende. Izitolo zilahlekelwa yiwozawoza yazo kumakhasimende uma zihluleka ukuxhumana namakhasimende ngokwemizwa, futhi ngaphandle kwalokho kuxhumana ngokwemizwa nokuzwana, izitolo zingazithola kalula zisesimweni lapho indawo yazo isithathwe yizitolo-mbumbulu ezingosandanezwe. Ukuqondakala okuphelele kwendlela aziphatha ngayo amakhasimende futhi enza ngayo izinto kusalokhu kuyinkinga nesithiyo esikhulu kwizazi nezisebenzi ezenza umsebenzi wokukhangisa nokuqhuba ibhizinisi. Njengomzamo wokubhekana nalesi sithiyo, lolu cwaningo lusebenzise ulwazi nokuqonda okujulile okutholakale kwizikali zendlela-kubuka yamakhasimende kanye nezikali zesimo sengqondo nesomzimba samakhasimende ukuze kutholakale ukuqonda okuphelele futhi okujulile okuphathelene nokuziphatha kwamakhasimende athenga ezitolo kanye nendlela enza ngayo izinto. / Ondanks sy stewige groei en aansienlike bydrae tot die landsekonomie, het die Suid-Afrikaanse kleinhandelsbedryf met verskeie uitdagings te kampe. Veranderinge in kliënte se koopgewoontes en verwagtings, groeiende e-handel, reusekleinhandelaars wat die kleinhandelsmark betree, die toenemende invloed van die verstedelikte middelklas en sy potensiële koopkrag is enkele hiervan. Dit gee aanleiding tot risiko’s wat grotendeels buite die beheer van kleinhandelaars is. As gevolg van die hedendaagse dinamiek in die bedryf, poog kleinhandelsmerke om kliëntlojaliteit te verstewig en hulle eie volhoubaarheid te verseker. Dit blyk uit die literatuur dat die kleinhandelsektor se siening van kliëntgedrag in Suid-Afrika op die meting van rasionele gedrag berus, en dat die onbewuste gedrag van kliënte verontagsaam word. Hierdie tesis doen verslag van ʼn studie om hierdie leemte in die huidige kennis te probeer aanvul. Dit lewer ʼn bydrae deur aanvullende tradisionele en neurobemarkingsinstrumente in ʼn opeenvolgende gemengde metode as navorsingsbenadering te gebruik. Verbale, nieverbale en fisiologiese emosies is gemeet aangesien hulle die kognitiewe en emotiewe faktore is wat inkopiebesluite bepaal. Hierdie studie het hoofsaaklik die emosionele antesedente van kliëntlojaliteit in die Suid-Afrikaanse formele kleinhandelsbedryf verken om ʼn grondige begrip van kliëntgedrag te kry. Ten einde kleinhandelsmerke en kliënte se ervarings van die drywers van kleinhandelsmerklojaliteit te beskryf en te verken, is ʼn opeenvolgende gemengdemetode-navorsingsontwerp gevolg. Dit het uit agt halfgestruktureerde, private onderhoude bestaan. Hierin is gekonsentreer op die grondslae van gedragsen houdingslojaliteit teen die agtergrond van ʼn kliënteverhoudingsbestuurstrategie. Op grond van die bevindings van ʼn kwantitatiewe winkelsentrumopname onder 300 kleinhandelskliënte, is die motiveringsfaktore met die grootste waarskynlikheid aangetoon. Hulle is produkgehalte, ʼn gerieflike ligging, kliëntesorg, produkverskeidenheid, beskikbaarheid en billike pryse, en bied die aanneemlikste verklaring vir kleinhandelsmerklojaliteit. Volgens die bevindings van die inferensiële ontleding (struktuurvergelykingmodellering, tweestaptrosontleding, optimale skalering en meerveranderlike binêre regressieanalise) is merkvertroue, merkaffek en houdingslojaliteit betroubare aanwysers van bedragslojaliteit. Afgesien hiervan verskil kliëntlojaliteit na gelang van kliëntpredisposisie jeens kleinhandelsmerke wat getoets is. Kliënte was vir vier stimuli (naamlik gehalte, kliëntbelonings, kliëntesorg en merklogo’s) die ontvanklikste vir Pick n Pay, Massmart en Shoprite/Checkers. Aanvullend tot die kwalitatiewe navorsingsfase van hierdie studie is ʼn selfasseringsmodelhoudingmeting op ʼn steekproef van 120 kliënte toegepas. Hierdie fase het die aandag gevestig op pertinente emosionele elemente as sleuteltussengangers in die opwekking van volhoubare kleinhandelsmerklojaliteit. Vir die vier stimuli (naamlik gehalte, kliëntbelonings, kliëntesorg en merklogo’s) was kliënte se persepsies van Woolworths en Pick n Pay die gunstigste. Hierbenewens is oogvolg- en galvaniese velreaksietegnieke op ʼn steekproef van 10 deelnemers toegepas om hulle psigofisiologiese reaksie op die vier stimuli te bepaal. Die galvaniese velreaksietoetse het aangedui dat kliënte besonder ontvanklik was vir Spar, Shoprite/Checkers en Pick n Pay, en volgens die oogvolgtoetse visueel meer aangetrokke tot Spar, Shoprite/Checkers en Pick n Pay was. Hierdie studie het bevind dat emosies in die algemeen ʼn deurslaggewende rol in kliëntlojaliteit speel. Kleinhandelsmerke raak irrelevant as hulle nie ʼn emosionele band met kliënte smee nie. Sonder hierdie emosionele verbintenis kan generiese bedrieërs maklik die plek van kleinhandelsmerke inneem. Bemarkings- en sakepraktisyns het nie ʼn deeglike begrip van kliëntgedrag nie. Om dit reg te stel, het hierdie studie nieverbale houdings- en psigofisiologiese toetse toegepas om die gedrag van kleinhandelskliënte beter te begryp. / Business Management / D. Com. (Business Management)

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