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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

Die versoenbaarheid van katoen/nylon- en katoen/poliester- skeringgebreide terriestofhanddoeke met industriele versorgingsprosedures

De Bruin, Riette 10 1900 (has links)
Thesis (MVerbruikerswet)--University of Stellenbosch, 2005. / ENGLISH ABSTRACT: The aim of the study was to investigate the compatibility of cotton/nylon and cotton/polyester warpknit terry towelling fabrics with industrial laundering procedures. The literature review focused, on the one hand, on the manufacture, finishing and structure of warp-knit terry towelling fabrics as well as on the physical structure, chemical nature and characteristics of the textile fibres used in the manufacturing of the towelling. On the other hand, a full exposition of the industrial laundering processes is provided, with specific reference to aspects that can have an effect on the towelling fabrics during the wash and tumble-drying cycles. Chapters Three and Four are reports on two research projects that can each be read independently. The aim of the first project was to determine the effect of industrial laundering procedures on the durability of cotton warp-knit terry towelling fabrics with a synthetic base structure. The tensile strength of cotton warp-knit terry towelling samples with a synthetic base structure was determined in the warp and weft directions and after 10, 20, 30, 40, and 50 wash cycles as well as wash and tumble-drying cycles. The tensile strengths in the warp direction of the washed terry towelling samples decreased significantly (p < 0.001) after 50 wash cycles. In contrast to this, the tensile strength in the weft direction increased, although not significantly (p > 0.05). As far as the comparison of the effect of industrial wash and wash and tumble-drying cycles is concerned, the tensile strengths in the warp direction of the towelling samples that were washed and washed/tumble-dried, were significantly lower (p < 0.001) after 20 and after 50 laundering cycles. As far as the tensile strengths in the weft direction were concerned, a similar pattern as with the wash and wash/tumble-drying processes, occurred. The tensile strengths initially increased and then gradually decreased. Furthermore, the tumble-drying process had greater damaging effects after 40 laundering cycles (p = 0.043) and especially after 50 laundering cycles (p < 0.0001). The aim of the second research project was to compare the durability of cotton warp-knit terry towelling fabrics with a nylon base structure with cotton warp-knit terry towelling fabrics with a polyester base structure after they had been subjected to industrial laundering processes. It was first established whether cotton/nylon and cotton/polyester warp-knit terry towelling fabrics are comparable. Secondly, the durability of cotton/nylon and cotton/polyester terry towelling fabrics was compared by determining the tensile strengths of the samples in the warp direction after they have been subjected to 50 industrial wash as well as wash and tumble-drying cycles. The two groups of untreated samples were regarded as similar on the basis of the percentage of fibre composition, knit fabric structure, knit density, mass and tensile strength. After 50 industrial wash cycles the tensile strengths of the cotton/nylon and cotton/polyester warp-knit terry towelling samples decreased significantly (p < 0.05). But there was no significant difference (p > 0.05) between the tensile strengths of the cotton/nylon and the cotton/polyester terry towelling samples after 50 washing cycles. There was a highly significant difference (p < 0.001) between the tensile strengths of the cotton/nylon and the cotton/polyester terry towelling samples after 50 wash and tumble-drying cycles. The tensile strength of the cotton/polyester terry towelling samples remained practically unchanged after the 50 wash/tumble-drying cycles, with the tensile strength of the cotton/nylon terry towelling samples decreased significantly (p < 0.001). / AFRIKAANSE OPSOMMING: Die doel van die studie was om ondersoek in te stel na die versoenbaarheid van katoen/nylon- en katoen/poliëster- skeringgebreide terriestofhanddoeke met industriële versorgingsprosedures. In die literatuuroorsig is daar enersyds gefokus op die vervaardiging, afwerking en struktuur van skeringgebreide terriehanddoekstowwe asook op die fisiese struktuur, chemiese aard en eienskappe van die tekstielvesels waarvan die handdoeke vervaardig is. Andersyds is ’n volledige uiteensetting van industriële versorgingsprosedures gegee, met spesifieke verwysing na aspekte wat tydens die was- en tuimeldrogingsiklusse ’n uitwerking op die handdoekstowwe kan hê. Hoofstukke drie en vier is opgeskryf as twee navorsingsprojekte wat elk ‘n geheel vorm. Die doel van die eerste projek was om die effek van industriële versorgingsprosedures op die duursaamheid van katoen skeringgebreide terriestofhanddoeke met ‘n sintetiese basisstruktuur te bepaal. Die breeksterkte van katoen skeringgebreide terriestofmonsters met ’n sintetiese basisstruktuur is in die skering- en inslagrigtings tydens en na afloop van 10, 20, 30, 40, en 50 was- asook was- en tuimeldrogingsiklusse bepaal. Die breeksterktes in die skeringrigting van die gewaste terriestofmonsters het betekenisvol afgeneem (p < 0.001) na 50 wassiklusse. In teenstelling hiermee het die breeksterktes in die inslagrigting toegeneem, hoewel nie betekenisvol nie (p > 0.05). Wat die vergelyking van die effek van industriële was- en was en tuimeldrogingsiklusse betref, is die breeksterktes in die skeringrigting van die handdoekmonsters wat gewas en gewas/getuimeldroog is, beduidend laer (p < 0.001) na 20 en na 50 versorgingsiklusse. Wat die breeksterktes in die inslagrigting betref het ‘n soortgelyke patroon by die was- en was/tuimeldrogingprosesse voorgekom. Die breeksterktes neem aanvanklik toe en daarna geleidelik af. Verder het die tuimeldrogingsproses na 40 versorgingsiklusse (p = 0.043) en veral na 50 versorgingsiklusse (p < 0.0001) ’n groter skadelike effek getoon. Die doel van die tweede navorsingsprojek was om die duursaamheid van katoen skeringgebreide terriestowwe met ’n nylon basisstruktuur te vergelyk met katoen skeringgebreide terriestowwe met ’n poliëster basisstruktuur nadat dit aan industriële versorgingsprosedures blootgestel is. Daar is eerstens vasgestel of katoen/nylon en katoen/poliëster terriehanddoekstowwe vergelykbaar is. Tweedens is die duursaamheid van katoen/nylon en katoen/poliëster terriestowwe vergelyk deur die breeksterktes van die monsters in die skeringrigting te bepaal nadat dit aan 50 industriële wasasook was- en tuimeldrogingsiklusse blootgestel is. Die twee groepe onbehandelde monsters is as soortgelyk beskou op grond van die persentasie veselsamestelling, breistofstruktuur, breidigtheid, massa en breeksterkte. Na 50 industriële wassiklusse het die breeksterktes van die katoen/nylon en katoen/poliëster skeringgebreide terriestofmonsters betekenisvol (p < 0.05) afgeneem. Daar was egter nie ’n betekenisvolle verskil (p > 0.05) tussen die breeksterktes van die katoen/nylon en katoen/poliëster terriestofmonsters na 50 wassiklusse nie. Daar was ’n hoogs betekenisvolle verskil (p < 0.001) tussen die breeksterktes van die katoen/nylon en katoen/poliëster terriestofmonsters na die 50 was/tuimeldrogingsiklusse. Die breeksterkte van die katoen/poliëster terriestofmonsters het na die 50 was/tuimeldrogingsiklusse feitlik onveranderd gebly terwyl die breeksterkte van die katoen/nylon terriestofmonsters hoogs betekenisvol (p < 0.001) afgeneem het.
2

The development and evaluation of measurements on spaghetti with diverse quality characteristics

MacGregor, Elizabeth 04 1900 (has links)
Thesis (MSc)--University of Stellenbosch, 2005. / ENGLISH ABSTRACT: Pasta manufacturing is a process whereby wheat flour is converted into a shelf-stable food that is more desirable than native wheat flour. It can be fortified and may serve as a valuable source of nutrition in developing countries. Quality measures are of importance in the production process to ensure a consistent and acceptable finished product. Literature provides information on many aspects of wheat types, milling techniques and processing of pasta. Protein content and quality of cultivated wheat varieties is of major importance to produce quality pasta products. Wheat types of lower protein content are more readily available than traditionally used durum wheat. As in all food products, the cost of final products is of major importance. Bread wheat is generally less expensive than durum wheat. However, product quality (and thus acceptability) may be lower. Direct measurements of product quality are currently limited to protein content, moisture content, colour analyses and certain other characteristics measurable in a laboratory, for example mechanical strength and firmness. Direct measurements of defects that may affect final product quality, such as cracks and fissures on the strands of spaghetti, different types of spots and lines on the strands, broken units, units sticking together and odd shapes are not well documented. During the first part of this study, spaghetti quality evaluation techniques were reviewed, improved or developed and thereafter standardised. This developmental research was conducted to establish valid and reliable measures (with a high degree of repeatability) for the evaluation of dry and cooked pasta quality characteristics. A wide variety of available products on the South African market were evaluated for different quality characteristics. From this evaluation standards were drawn up, tested for validity and reliability by means of repeatability. Minimum sample sizes for the evaluation of different quality characteristics were calculated and presented in the study, together with reference photographs that can be used to evaluate spaghetti. This study found that colour evaluation by means of commercially available apparatus needs revision. This study suggests the use of multiple layers when evaluating translucent food products for colour. The occurrence of fissures and flour spots are of importance for the quality of the final product. This study provides a set of valid and reliable measurements for measuring the quality of dry and cooked spaghetti. Simple techniques can therefore be used to detect the presence or absence of these defects. Thereafter an empirical study was conducted to describe the differences between spaghetti prepared from durum and non-durum wheat, dried at different temperatures and at different relative humidity. Spaghetti samples of diverse perceived quality, from different manufacturers, were purchased and evaluated. Standard methods and the newly developed testing methods were used to test whether these methods effectively distinguish between spaghetti of diverse quality, reflecting on the validity of the methods. Correlations were calculated between dependent and independent variables in an attempt to find possible explanations for certain defects or quality differences, and to test certain theories in the literature. Certain relationships between quality characteristics were found, while others were questioned. The most important proven relationships were between protein content and its effects on reducing quality defects such as fissures, breakages and cooking losses. The relationship between ash content and spaghetti colour could not be confirmed in this study. This study confirmed that protein remains one of the most important variables to ensure consistent quality spaghetti. / AFRIKAANSE OPSOMMING: Pastavervaardiging is ‘n proses waartydens koring meel omskep word in a produk met ‘n stabiele en lang rakleeftyd wat meer gewens is as die oorspronklike koring meel. Pasta kan gefortifiseer word and kan dien as a waardevolle voedingsbron in ontwikkelende lande. Om ‘n konstante en aanvaarbaare finale produk te verseker is kwaliteitmetings gedurende die produksie proses belangrik. Die literatuur voorsien heelwat inligting rakende aspekte van belang vir pastakwaliteit, byvoorbeeld koringtipes, maaltegnieke en die vervaardigingsproses. Proteïninhoud en die kwaliteit daarvan is van groot belang tydens die produksie van hoë kwaliteit pasta. Koringtipes met ‘n laer proteïninhoud is meer geredelik beskikbaar as tradisionele durumkoring. Soos met alle voedselprodukte, is die koste van die finale produk van groot belang. Oor die algemeen verhandel broodkoring teen laer pryse as durumkoring. Die produkkwaliteit en aanvaarbaarheid van pasta vervaardig van broodkoring kan egter laer wees as dié van durumkoring. Direkte metings van produkkwalitiet is tans beperk tot proteïninhoud, voginhoud, kleuranalise en sekere eienskappe meetbaar in ‘n laboratorium, byvoorbeeld meganiese sterkte en fermheid. Die direkte meting van defekte wat finale produkkwaliteit kan beïnvloed, byvoorbeeld barste, krake, meel kolletjies, strepe op spaghetti-eenhede, gebreekte eenhede, eenhede wat aan mekaar kleef en ongewone vorms, is nie goed gedokumenteer nie. Gedurende die eerste gedeelte van hierdie studie, is ‘n oorsig van spaghetti evaluasie tegnieke beskikbaar in die literatuur gdoen, waarna sekeres verbeter is, ander ontwikkel is en finaal gestandariseer is. Hierdie navorsing is uitgevoer om geldige en betroubare metings (met ‘n hoë graad van herhaalbaarheid) vir die evaluasie van droë- en gaar pastakwalitietseienskappe vas te stel. ‘n Wye verskeidenheid van produkte beskikbaar op die Suid-Afrikaanse mark is ge-evalueer ten opsigte van verskillende kwaliteitseienskappe. Vanuit hierdie evaluasies is standaarde saamgestel en getoets vir geldigheid en betroubaarheid deur middel van herhaalbaarheid. ‘n Minimum steekproefgrootte per kwaliteitseienskap is bereken en word vermeld in hierdie studie. Daarmeesaam word verwysingsfoto’s aangebied wat gebruik kan word tydens die evaluasie van spaghetti. Hierdie studie bied a stel geldige en betroubare meting vir die kwaliteit van droe en gaan spaghetti. Eenvoudige tegnieke kan dus gebruik word om die voorkoms van hierdie defekte te meet. Met afloop van die verkennende studie, is ‘n empiriese studie gedoen om die verskille te beskryf tussen pasta vervaardig van durum en brood koring, gedroog teen verskillende temperature en relatiewe humiditeit. Spaghettimonsters met oënskynlike diverse kwaliteit, vervaardig deur verskillende maatskappye, is aangekoop en ge-evalueer. Standaardmetings en nuutontwerpte metings is gebruik om te bevestig of die metings kan onderskei tussen spaghetti met uiteenlopende kwaliteit, wat reflekteer op die geldigheid van die metingsmetodes. Korrelasies is bereken tussen afhanklike en onafhanklike veranderlikes in ‘n poging om moontlike verklarings vir sekere defekte of kwaliteitsverskille te vind, en ook om sekere teoriëe in die literatuur te toets. Die verband tussen sekere kwaliteitseienskappe is bevestig en bewys, terwyl ander bevraagteken was. Die mees belangrike verband was proteïninhoud en die effek daarvan om die voorkoms van defekte, soos barste, gebreekte eenhede en kookverliese te verlaag. Die verband tussen asinhoud en spaghettikleur kon nie in hierdie studie bevestig word nie. Hierdie studie het bevestig dat proteïn die mees belangrike veranderlike is wat oorweeg moet word wanneer ‘n konstante hoë kwaliteit spaghettiproduk vervaardig word. Kleurevaluasie met behulp van kommersieel-beskikbare apparaat vereis hersiening. Hierdie studie stel voor dat tydens kleur evaluasie van voedsel wat lig deurlaatbaar is, dit in veelvoudige lae evalueer moet word. Die voorkoms van defekte soos barste, krake of meel kolletjies is van belang ten opsigte van finale produkkwaliteit. Hierdie studie bied riglyne vir die evaluasie van die genoemde defekte. Die voorkoms van hierdie defekte is van groter belang as die graad waarteen die defek voorkom. Eenvoudige tegnieke kan vervolgens gebruik word om die teenwoordigheid of afwesigheid van hierdie defekte te bepaal.
3

Meat quality of raw and processed guinea fowl (Numeda meleagris)

Tlhong, Tumelo Maud 12 1900 (has links)
Thesis (MSc (Consumer Science)--Stellenbosch University, 2008. / The purpose of this study was to investigate the chemical composition mineral and cholesterol content of the different cuts (breast, drumstick and thigh) of raw guinea fowl meat. The study also aimed at establishing the effect of cooking method on guinea fowl quality attributes by investigating the effect of different cooking methods on the chemical composition and sensory attributes of the different cuts. The effect of injecting a brine solution on the chemical composition and sensory attributes were also investigated. There were no differences in terms of moisture content of the various cuts raw guinea fowl meat The breast had significantly higher protein content when compared to drumstick and thigh (P<0.05). The fat content was similar for all the cuts (P>0.05). Whilst the drumstick had significantly the lowest value for ash content when compared to the thigh. Saturated fatty acids (SFAs) and total unsaturated fatty acids (TUFAs) were not different (P>0.05) in all the cuts. Drumstick had significantly higher monounsaturated fatty acids compared to other cuts (P<0.05), and it had the highest polyunsaturated fatty acids (P<0.05). The breast had the lowest (P<0.05) n-6 fatty acid value (44.25) and had relatively the lowest Polyunsaturated:Saturated (P:S) fatty acid ratio of 1.74 when compared to the other cuts. High n-6:n-3 ratios, ranging from 7.05 to 16.58, were also found in all the cuts. Cholesterol was lowest (P<0.05) in the breast. Seventeen amino acids were found, including the eight of the nine essential amino acids. Significant differences were found in amino acid values for the different cuts. Values of iron were significantly higher in the drumstick and thigh cuts (P<0.05), whilst drumstick had the highest zinc content of all the cuts (P<0.05). On investigating the effect of three cooking methods (baking-bag, foil-wrap, open-roasting at 140ºC for 65 minutes) on the chemical composition, the open-roasting method produced higher moisture content (P<0.05) consistently for all cuts, with the breast having the highest and the drumstick the lowest (P<0.05). The moisture content of the baking-bag method on the other hand was consistently the lowest (P>0.05). This effect was significant for the breast, which had lost the most moisture (P<0.05). The baking-bag method consistently resulted in a higher protein content, which is attributed to the higher moisture loss (P<0.05) in comparison with the other methods, resulting in a more concentrated product. With regard to the fat content no effect resulting from the cooking methods could be observed (P>0.05), but the cuts’ natural fat content was reflected especially in the open–roasting method (P<0.05) giving further support to the understanding that the open-roasting method indeed made the least inroads on the chemical composition of guinea fowl meat under these restraints: controlled for cooking time and temperature, internal temperature not controlled. All the cuts cooked according to all the methods, had the favourable >0.4 Polyunsaturated:Saturated fatty acids (P:S) ratio, ranging from 0.91 to 1.42 between cuts and treatments. The n-6:n-3 ratio was below the recommended beneficial value, namely <4:1, in all the cuts irrespective of all the cooking methods, ranging from 2.47 to 3.08. The study of the effect of the three cooking methods (baking-bag, foil-wrap and open-roast) on the sensory attributes of the breast meat revealed that aroma-intensity of the three cooking treatments did not differ significantly (P>0.05). Foil-wrap produced a more tender and juicier product (P<0.05), while, when using the baking-bag method, values for flavour decreased (P<0.05). It is proposed that a higher internal temperature (which was not controlled) was attained when using the baking-bag method (temperature and time controlled) resulting in loss of volatile flavour components. The effect of the three cooking methods (baking-bag, foil-wrap and open-roast) on the proximate composition (moisture, protein, fat and ash) of raw and cooked breast meat was investigated. As anticipated raw breast meat had higher moisture content (74.55%, P<0.05) than the cooked cuts, with open-roasting showing the highest (68.55%) value and foil-wrap close second (68.12%). These values differed significantly from the baking-bag method (66.06%, P<0.05). An investigation on the effect of brine infusion on the sensory attributes and chemical composition (proximate and fatty acid composition, and mineral content) of breast meat, baked in foil-wrap, was carried out using descriptive sensory analysis with the injected breast and the control as variable. There were no significant differences (P>0.05) between the injected and the control samples for any of the sensory attributes of aroma, tenderness, initial juiciness, sustained juiciness and flavour. Judge:treatment variations were observed for all the attributes, and samples differed for all attributes except for aroma. It is proposed that the use of the hand injector could not effectively distribute the brine solution, hence the recommendation to repeat the experiment using an electronic multineedle-injector. No effect was observed for the proximate composition (P>0.05). Further research pertaining to cooking methods of meat of free-range guinea fowl is recommended to address certain issues that have been highlighted.
4

Professional socialisation of family ecology and consumer science students at South African Universities

Cornelissen, Judith Jean 03 1900 (has links)
Thesis(PhD)--University of Stellenbosch, 2006. / Professional socialisation can be described as a subconscious process whereby persons internalise behavioural norms and standards and form a sense of identity and commitment to a professional field. The primary goal of professional socialisation is considered to be internalisation of the professional culture and the development of a professional identity. It is learned through interaction with professionals and educators during a student’s education. It is a continuous, life-long process of learning formal knowledge, skills and rules, as well as informal and tacit knowledge, norms, values and loyalties within the profession. An understanding of the professional socialisation process is vital to all persons involved in postsecondary education, for it is the professional socialisation process that allows education to achieve its goals. This dissertation determined whether students of Family Ecology and Consumer Sciences in South Africa are professionally socialised into developing a professional identity within the Family Ecology and Consumer Sciences profession. The objectives of the research included; to examine through a literature review the development of the profession and to propose a new position for the profession in South Africa; to identify the factors that influenced South African students when they decided on Family Ecology and Consumer Science as a field of study and the factors that influenced them while they were obtaining their degree at a South African university; to determine whether Family Ecology and Consumer Science students evidence the developmental stages of the Cohen model of the professional socialisation process; to determine Family Ecology and Consumer Science professionals’ perceptions of their professional preparation environments; and to analyse and compare Family Ecology and Consumer Science programmes at South African universities. A quantitative research methodology in the form of an analytical survey was undertaken with the participation of students and staff at South African universities where Family Ecology and Consumer Science programmes are offered by means of postal questionnaires. Three questionnaires were used in the research, namely; the Professional Socialisation Influences (PSI) questionnaire; the Professional Socialisation Staging Scale (PS3) questionnaire; and the Emphases, Process and Influences on the Professional Preparation Programmes questionnaire. A conceptual framework was used to compare the Family Ecology and Consumer Science professional preparation programmes presented at South African universities.. Descriptive statistics and the factor analysis method were used to examine the objectives to determine which factors influenced students to select Family Ecology and Consumer Sciences and the factors that influenced them while they were studying for a degree at a South African university. Descriptive statistics, ANOVA and Bonferroni Post-Hoc tests were used to examine whether Family Ecology and Consumer Science students evidenced the developmental stages of the Cohen model of the professional socialisation process. Descriptive statistics were used to examine Family Ecology and Consumer Science professionals’ perceptions of their professional preparation environments. The main findings drawn from the study indicated that Family Ecology and Consumer Sciences students, when selecting Family Ecology and Consumer Science as a profession, were influenced by the ‘Service Ideal’ and ‘Entrepreneurial’ factors. Aspects that elicited the highest percentage of positive responses from the respondents were; ‘desire to help others’; ‘a desire to improve the quality of family living’; ‘a desire to help people learn to do things’; and ‘entrepreneurial possibilities of the course’. While studying for a degree in Family Ecology and Consumer Science, they were influenced by the factors ‘Student Interaction’ and ‘Departmental Influences’. Aspects such as; ‘career opportunities available’; ‘application of what I learned to my personal life’; and ‘employment opportunities available’; were those that had the biggest influence.
5

Development of standardized sizing systems for the South African children’s wear market

Van Huyssteen, S. 04 1900 (has links)
Thesis (DSc (Consumer Science)--University of Stellenbosch, 2006. / 326 leaves on CD format, preliminary i-xix pages and numbered pages 1-210. Includes bibliography, list of tables, figures and appendixes. / ENGLISH ABSTRACT: This research focused on the need of the children’s wear industry in South Africa for sizing systems based on accurate and current body measurement tables developed from the actual measurements of children. The broad objective of this study was to develop standardised measuring methodologies and techniques which would be relevant to the subsequent development of reliable, accurate and comprehensive body measurement tables. These tables could then be implemented as a basis for the development of new sizing systems, as well as new, improved and authentic fit dummy ranges. The literature study served as a point of departure for the planning and execution of the empirical study, focusing on sizing and size designation systems. The study population comprised children representative of three categories, namely age (2 to 14 years), gender (boys and girls) and sector (Black and Non-Black) categories. A convenience sample was selected, representing children from two geographical areas (Western Cape and Gauteng). The empirical study has a three phase structure. The first pilot study aimed at developing standardised measuring equipment, as well as the methodologies and properly recorded guidelines for their implementation. The specific standards according to which subjects were measured and the strict quality control measures implemented to ensure the validity, reliability and accuracy of recorded data, were confirmed during the second pilot study. Based on this, the final study was executed following the guidelines as recorded in the Field Worker Manual. The statistical analysis was done after data capturing during which the data sets were first cleaned up. Secondly, the key measurements for use as a basis for the development of the sizing systems were identified. Based on these, body measurement tables were compiled and age of gender split and growth patterns were analysed for fit dummy prototype development. The new size designation system developed for children’s clothing was successfully implemented as a multi-indicator system, linking height ranges with both age ranges and numerical size indicators. The development of the subsequent new and improved fit dummy prototypes was based on measurements within minimum and maximum values of the body measurements, in order to facilitate the construction of these three-dimensional bodies. It was also possible to develop complete body measurement tables with accurate, and notably irregular, increments between sizes as well as to determine specific growth patterns and separate growth spurts for both boys and girls. This study made new and original as well as more detailed and correct information available concerning the size and shape of the typical South African children’s wear consumer. Using the information contained in the new height based sizing system, retailers have been able to develop a proper set of grade rules for application in product development. The identification and demarcation of important body landmarks facilitated pattern drafting, garment development and fit assessments, resulting in an improved product offering for the typical South African children’s wear consumer. Recommendations regarding further research were formulated, such as comparing the study population categories, namely gender, age and sector. Implications for retailers, inter alia that each retail company could choose how to implement the new height based sizing system and the specific size designation system most suitably for their own consumers and internal systems. The standards set and methodologies implemented in this survey were an improvement on the sizing and fit of children’s wear in the context of South African manufacturers, retailers and consumers. / AFRIKAANSE OPSOMMING: Hierdie navorsing fokus op die behoefte van die Suid-Afrikaanse kinderklerekleinhandelbedryf aan ‘n sisteem van kleregroottes, gebaseer op akkurate en huidige liggaamsmate-tabelle wat ontwikkel is van die werklike mates van kinders. Die oorkoepelende doelstelling van hierdie studie was om gestandaardiseerde meetmetodologieë en -tegnieke te ontwikkel wat relevant is vir die daarstelling van betroubare, akkurate en omvattende liggaamsmate-tabelle, wat dan gebruik kan word as basis vir die nuwe kleregroottesisteem, sowel as om nuwe, verbeterde en oorspronklike figuurmodelreekse te ontwikkel. Die literatuurstudie het gedien as vertrekpunt vir die beplanning en uitvoering van die empiriese studie met die fokus op kleregroottesisteme en kleregrootteaanwysingsisteme. Die kinders in die studiepopulasie het drie kategorieë verteenwoordig: ouderdom (2 tot 14 jaar), geslag (seuns en meisies) en sektor (Swart en Nie-Swart). ‘n Gerieflikheidsteekproef is uit twee geografiese areas (Wes-Kaap en Gauteng) gekies. Die empiriese studie het ‘n drie-fase-struktuur. Die eerste loodsstudie het ten doel gehad om gestandaardiseerde meettoerusting, meetmetodologieë en behoorlik aangetekende implementeringsriglyne daar te stel. Die spesifieke standaarde waarvolgens die proefpersone gemeet is en die implementering van streng kwaliteitbeheermaatreëls wat geldige, betroubare en akkuraat vasgelegde data verseker, is tydens die tweede loodsstudie bevestig. Die finale studie is gebaseer op en uitgevoer volgens die riglyne soos uiteengesit in die Field Worker Manual. Die statistiese analise is gedoen nadat die data vasgelê en skoongemaak is. Vervolgens is sleutelmates geïdentifiseer wat as basis vir die ontwikkeling van kleregroottesisteme kan dien. Volledige liggaamsmate-tabelle is daarna ontwikkel. Die identifisering van die geslagverdelingsouderdom, sowel as die analisering van groeipatrone vir die ontwikkeling van figuurmodelle, is hierop gebaseer. Die nuwe klere-aanwysingsisteme wat ontwikkel is vir kinderklere is suksesvol geïmplementeer as ‘n veelvoudige aanwysingsisteem wat liggaamslengtereekse met ouderdomsreekse en numeriese grootte-aanwysers koppel. Die nuwe en verbeterde figuurmodel-prototipes wat vervolgens ontwikkel is, is gebaseer op minimum en maksimum waardes van die liggaamsmates ten einde die konstruksie van die driedimensionele figure te vergemaklik. Daarbenewens was dit moontlik om volledige liggaamsmate-tabelle met akkurate en opmerklik ongelyke inkremente tussen groottes daar te stel, sowel as om die spesifieke groeipatrone en afsonderlike groeitoenames vir beide seuns en meises te bepaal. Die studie het nuwe en oorspronklike, sowel as meer gedetailleerde en korrekte inligting ten opsigte van die grootte en vorm van die tipiese Suid-Afrikaanse kinderklereverbruiker beskikbaar gestel. Met hierdie nuwe kennis van die liggaamslengte-gebaseerde kleregroottesisteem, is dit nou vir kleinhandelaars moontlik om ‘n volledige stel graderingsreëls daar te stel en in produkontwikkeling toe te pas. Die identifikasie en afbakening van belangrike liggaamsbakens vergemaklik patroon- en klereontwikkeling sowel as die evaluering van die mate waarin dit pas; dit waarborg ‘n verbeterde produk vir die tipiese Suid-Afrikaanse kinderklereverbruiker. Aanbevelings vir verdere navorsing is gemaak, soos ‘n vergelyking van die studiepopulasiekategorieë, naamlik geslag, ouderdom en sektor. Die implikasies vir kleinhandelaars is onder meer dat elke kleinhandelaar kan kies hoe om hierdie nuwe liggaamslengte-gebaseerde kleregroottesisteem te implementer en watter die mees geskikte kleregrootte-aanwysingsisteem vir hul verbruikers en interne sisteme sal wees. Die standaarde wat vir hierdie studie gestel is, sowel as die metodologieë wat geïmplementeer is, is ‘n aansienlike verbetering op die groottes en pas van kinderklere binne die konteks van die Suid-Afrikaanse vervaardigers, kleinhandelaars en verbruikers.
6

A participatory action research approach to programme evaluation in a rural society

Bester, Alte 03 1900 (has links)
Thesis (MA)--University of Stellenbosch, 2002. / ENGLISH ABSTRACT: Recently, Participatory action research (PAR) has become a common approach to social programmes in South Africa. This tendency has created a need to evaluate this kind of programmes to determine if it really achieves what it sets out to do. The purpose of this study was to evaluate an entrepreneurial skills training programme in a rural community where a participatory action research approach was followed. A literature review was undertaken to present an in-depth look into the body of literature that surrounds the study. Programme evaluation was discussed as a research design, including types and stages of evaluation. The concept of empowerment was investigated. The review also included a study of literature on PAR, especially the definitions, context and process of PAR. The role of entrepreneurship in rural development was also investigated as well as the evaluation of entrepreneurial skills training programmes. An entrepreneurial skills training programme was implemented in the rural town of Darling on the West Coast of South Africa. The PAR approach was followed in the implementation of the study that was conducted over a period of 15 months. Participants joined the programme that included different projects, voluntarily. The participants were divided into three groups according to their period of participation in the programme. The researcher facilitated actions as well as reflection meetings with the group of participants before and after the entrepreneurial skills training course. The researcher made field notes during the implementation of the programme. The participants' empowerment status was measured with a standardized questionnaire using a pre-test-post-test design. The participants' application of the entrepreneurial skills that were taught in the course was measured during semi-structured interviews at the end of the research perico. four case studies document the extremes of the respective outcomes of the programme, namely empowerment and entrepreneurship. Statistical analysis showed statistically significant improvements in the micro, macro and total empowerment scores of the total group. Looking at the three groups separately, group one showed statistically significant improvements on the micro and interface levels and group two on the micro level. Even though group three showed small improvements on all three levels, none of them were statistically significant. Data from the field notes wer:e analyzed according to the PAR concepts of participation, action and reflection. Participation mostly had a collaborative nature; action was aimed at economical change and reflection aimed at practical problem solving. The interviews revealed that 20 of the 24 participants had micro baking businesses at the end of the research period and they succeeded in the short-term goal of applying the skills that were taught in the course. The case studies showed no correlation between the participants' application of entrepreneurial skills and the changes in their empowerment status. The findings of the study suggest that the longer participants participate in a PAR programme, the bigger the improvement in their empowerment status will be. Monitoring of the implementation revealed that the study fell short of the "ideal type" of PAR, since participation was not yet collegiate. Actions were only effective in economic change and not in social transformation. Reflection resulted in limited critical self-awareness among the participants. The PAR approach has proven to be successful in the attainment of the short-term goals of an entrepreneurial skills training programme. The long-term sustainability of the entrepreneurs' businesses will have to be followed-up by further research. / AFRIKAANSE OPSOMMING: Die afgelope tyd is deelnemende aksie navorsing (DAN)'n algemene benadering tot sosiale intervensie programme in Suid-Afrika. Hierdie tendens het 'n behoefte laat ontstaan om hierdie tipe programme te evalueer om te bepaal of dit werklik die program doelwitte bereik. Die doel van hierdie studie was om 'n entrepreneursvaardighede opleidingsprogram in 'n landelike gemeenskap waar die DAN-benadering gevolg is, te evalueer. 'n Literatuuroorsig is onderneem om die konseptueie raamwerk wat vir die studie saamgestel is, te kan beredeneer. Programevaluering, insluitende tipes and stadia van evaluering, is bespreek as 'n navorsingsontwerp. Die konsep van bemagtiging is ook bestudeer. Die oorsig het 'n ook studie van literatuur oor DAN ingesluit, veral definisies, die konteks en die proses van DAN. Die rol van entrepreneurskap in landelike ontwikkeling is 00~ ondersoek sowel as die evaluering van opleidingsprogramme gemik op die ontwikkeling van entrepreneursvaardighede. 'n Entrepreneursvaardighede opleidingsprogram is in 'n landelike dorpie, Darling, aan die Weskus van Suid-Afrika geïmplementeer. Oor 'n periode van 15 maande is die DAN-benadering in die implementering van die program gevolg. Deelnemers het vrywillig by die program wat uit verskillende projekte bestaan het, aangesluit. Die deelnemers is na aanleiding van hul tydperk van deelname in die program in drie groepe verdeel. Die navorser het aksies sowel as refleksie byeenkomste met die groep deelnemers voor en na die entrepreneursvaardighede opleidingskursus gefasiliteer. Die navorser het veldnotas tydens die implementering van die program gemaak. Die deelnemers se bemagtigingstatus is gemeet met 'n gestandaardiseerde vraelys terwyl 'n voor-en-na-toets ontwerp gevolg is. Die deelnemers se toepassing van die entrepreneursvaardighede wat in die kursus geleer is, is tydens semigestruktureerde onderhoude aan die einde van die navorsingsperiode gemeet. Vier gevallestudies dokumenteer die uiterstes van die onderskeidelike uitkomste van die program, naamlik bemagtiging en entrepreneurskap. Statistiese analise het statisties betekenisvolle verbeteringe in die mikro, makro en totale bemagtigingsvlakke van die totale groep getoon. Afsonderlik gesien, het groep een statisties betekenisvolle verbeteringe op die mikro en tussenvlak getoon en groep twee net op die mikrovlak. Alhoewel groep drie klein verbeteringe op al drie vlakke getoon het, was geen van die verbeteringe statisties betekenisvol nie. Data van die veldnotas is volgens DAN konsepte, naamlik deelname, aksie en refleksie geanaliseer. Die deelnemers en die fasiliteerder se deelname het meestal In samewerkende aard gehad, aksie was gemik op ekonomiese verandering en refleksie was gemik op praktiese probleemoplossinq. Die onderhoude het aangetoon dat 20 van die 24 deelnemers aan die einde van die navorsingsperiode In mikro bakbesigheid gehad het en dat hulle daarin geslaag het om die korttermyn doelwit, naamlik die toepassing van die vaardighede wat in die kursus geleer is, te bereik. Die gevallestudies het geen korrelasie getoon tussen die deelnemers se toepassing van entrepreneursvaardighede en die veranderinge in hulle bemagtigingstatus nie. Die studie se bevindinge dui daarop dat hoe langer deelnemers aan In DAN-program deelneem, hoe groter sal die verbetering in hulle bemagtigingstatus wees. Die monitering van die implementering van die program het laat biyk dat die studie tekort skiet in vergelyking met die "ideaaltipe" van DAN, want die deelname was nog nie korporatief nie. Aksies was net suksesvol in ekonomiese verandering en nie in sosiale transformasie nie. Refleksie het tot beperkte kritiese "selfbewustheid" by die deelnemers gelei. Dit blyk dat die DAN-benadering suksesvol was om die korttermyn doelwitte van In entrepreneursvaardighede opleidingsprogram te bereik. Die langtermyn volhoubaarheid van die entrepreneurs se bakbesighede sal met verdere navorsing opgevolg moet word.
7

Meat quality characteristics of blesbok (Damaliscus dorcas phillipsi) and red hartebeest (Alcelaphus buselaphus caama) meat

Smit, Karen 03 1900 (has links)
Thesis (MSc Consumer Science)--Stellenbosch University, 2004. / ENGLISH ABSTRACT: Please see fulltext for abstract / AFRIKAANSE OPSOMMING: Sien asb volteks vir opsomming
8

The development of a scale for the measurement of the perceived importance of the dimensions of apparel store image

Janse van Noordwyk, H. S. 03 1900 (has links)
Thesis (PhD (Consumer Science. Clothing and Textiles))--University of Stellenbosch, 2008. / The current apparel retail environment is marked by intense competitive activity. The key to survival is the implementation of effective differentiation strategies. Corporate and retail branding provides retailers with a powerful tool to differentiate themselves in the marketplace and store image is a vital component of this branding strategy. This exploratory study set out to investigate the underlying theoretical structure of store image. A store image scale was developed for the measurement of the perceived importance of store image. The study adopted a five phase methodology, namely (1) construct definition and domain specification, (2) generation and judging of measurement items, (3) purification of the store image scale, (4) assessing the reliability and validity of the store image scale, and (5) assessing the perceived importance of the dimensions of store image in selected discount and specialty stores through practical implementation of the store image scale. The first two phases of the study resulted in a Model of Store Image delineating the underlying structure of store image which formed the basis for a store image definition, as well as a 232-item store image scale with established content and face validity. Phase 3 comprised two pilot studies that served to purify the store image scale. The first pilot study concluded in a 214-item scale that was deemed too lengthy for practical implementation in the apparel retail environment. The second pilot study resulted in a 55-item store image scale that was deemed acceptable for practical implementation. Correlation analysis provided support for the shortened version of the store image scale. The scale was not representative of all the sub dimensions associated with store image. This was reflected in the Revised Model of Store Image. Phase 4 employed a mall-intercept research method. The sample population (n=534) consisted of apparel consumers, both male and female, between the ages of 20 and 60. They belonged to the black, coloured or white population groups who patronised specific apparel retail outlets. Trained fieldworkers gathered the data at selected discount and specialty apparel stores. Confirmatory factor analysis was performed on the data and results provided support for the reliability of the store image scale. The Atmosphere, Convenience, Institutional, and Promotion dimensions exhibited good model fit. The Facilities and Sales personnel dimensions, as well as the Revised Model of Store Image showed evidence of acceptable model fit. The Merchandise and Service dimensions demonstrated poor fit. Only the Sales personnel dimension showed convergent validity. Support was found for marginal convergent validity of the Atmosphere, Convenience, Facilities, Promotion, and Service dimensions, as well as the Revised Model of Store Image. The Institutional and Merchandise dimensions did not exhibit convergent validity. Apart from the Convenience and Service dimensions, discriminant validity for all dimensions was established. Item analysis identified seven scale items for deletion which could potentially result in better model fit of the individual dimensions as well as the Revised Model of Store Image. The deletion of these items could contribute to increased convergent and discriminant validity. For purposes of Phase 5 the data gathered during Phase 4 was submitted to statistical analysis. Results indicated that discount and specialty apparel store consumers ranked the Atmosphere, Promotion, Merchandise, Institutional, and Sales personnel dimensions similarly in perceived importance. Discount apparel store consumers ranked the Facilities and Convenience dimensions higher, whilst specialty consumers ranked the Service dimension higher. However, the differences in ranking for all dimensions remained relatively small for both store types. Statistical differences in the perceived importance of only two dimensions, namely the Institutional and Service dimensions were found. The study culminated in revised 48-item store image scale. A Final Model of Store Image and definition of store image were proposed as point of departure for future research.. The main implications for retailers were formulated as: 􀂍 The Final Model of Store Image identified the dimensions and sub dimensions of store image. Retailers should manipulate the tangible and intangible store attributes associated with these dimensions and sub dimensions to build a favourable store image. Due to the gestalt nature of store image it is imperative that all store image dimensions are presented in a cohesive and consistent manner. 􀂍 The store image scale will enable retailers to ascertain which dimensions are salient to their target consumers. These dimensions should be incorporated in the retail strategy.
9

'n Intervensieprogram vir bevordering van inkomstegenerering in 'n landelike gemeenskapsentrum

Langenhoven, Magdalena C. (Magdalena Cornelia) 12 1900 (has links)
Thesis (MVerbruikerswet)--University of Stellenbosch, 2004. / ENGLISH ABSTRACT: Rural areas in South Africa experience extreme levels of unemployment, and therefore are in dire need for skills training. In some rural areas this training takes place in community centres. Participants are empowered to generate an income. The activities mostly take place in a group context. In such a community centre a lack of the presentation of structured skills training programmes was identified. The aim of the study is to develop a skills training programme to help rural people in starting an income-generating project in a group context by means of intervention. In the literature study the concept of community centres was discussed. The basic human needs and the needs for training were related to the concept of group work. Programme development for adult education, income-generation and interventions were described in detail. The development of creativity, empowerment, capacity building and sustainable development were briefly discussed as potential outcomes of skills training programmes for the generation of income. For the purpose of this study a case study was undertaken of existing needlework groups in the Darling Focus Community Centre. A study group of 15 members was identified. The duration of the study group's involvement in needlework training was determined. The need for skills training workshops and the study group's interest in group work were established. Although the activities of the study group take place in group context, very little evidence exist of co-operation towards the objective of income generation. A major shortcoming is the failure to pinpoint objectives in the group. Darling is a rural tourist attraction with a target market for the sale of handcrafted products. For this purpose the crafted products need to adhere to certain criteria. Despite the opportunity to market products to tourists, only the local market is being targeted. The requirements of these clients are not considered a priority in the manufacturing of products. Therefore the study group was considered a suitable case study in this research. An intervention programme was compiled and implemented in group context for the training of skills in the manufacturing, marketing and selling of products. Surveys were done by self-administered questionnaires and unstructured interviews were conducted with important role players. Workshops were presented where skills application was monitored through control lists. The application of business skills was established through a semi-structured interview. Throughout the process the researcher made observations and documented information. Surveys indicated that the duration of the group members' involvement with needlework activities were between three and eleven years. A clear need for skills training as well as interest in group work was established and addressed. Self diagnoses of needs for skills training was done during visits to trade areas. A brainstorming session was conducted to generate ideas for the manufacturing of products to be sold. The skills in making these products were demonstrated during the workshops and practised during follow-up work sessions. A basic business skill workshop was conducted. After implementation of the intervention the results of the group work were evaluated at the hand of success criteria identified from literature. This list of criteria provides a guideline for similar training programmes. / AFRIKAANSE OPSOMMING: Landelike gebiede in Suid-Afrika gaan gebuk onder werkloosheid wat vaardigheidsopleiding noodsaak. Sommige plattelandse dorpe het gemeenskapsentrums wat onder meer vaardigheidsopleiding bied. Deelnemers aan die opleiding word bemagtig om 'n inkomste te kan genereer. Die aktiwiteite vind meestal in groepverband plaas. 'n Leemte, geïdentifiseer in so 'n gemeenskapsentrum, is die aanbieding van gestruktureerde vaardigheidsopleidingsprogramme in groepverband wat mense in staat stel om 'n volhoubare inkomste te genereer. Die studie het ten doel om deur intervensie 'n vaardigheidsopleidings-program te ontwikkel wat landelike mense help om 'n inkomstegenereringsprojek in groepverband te vestig. In die literatuuroorsig is die konsep van gemeenskapsentrums bespreek. Die basiese menslike behoeftes en behoeftes aan opleiding is in verband gebring met die konsep van groepwerk. Programontwikkeling vir volwassene-onderwys is uiteengesit en inkomstegenerering en –intervensies is volledig bespreek. Die ontwikkeling van kreatiwiteit, bemagtiging, kapasiteitsbou en volhoubare ontwikkeling is kortliks aangeraak as moontlike uitkomste van vaardigheidsopleidingsprogramme vir die generering van inkomste. Vir die doel van hierdie studie is 'n gevallestudie gedoen van bestaande naaldwerkgroepe gesetel in die Darling Fokus Gemeenskapsentrum. ‘n Studiegroep van 15 lede is geïdentifiseer. Die tydperk wat die studiegroep by naaldwerkopleiding betrokke is, is bepaal asook die behoefte aan vaardigheidsopleidingswerkswinkels. Verder is die studiegroep se belangstelling in groepwerk bepaal. Hoewel die aktiwiteite van die studiegroep in groepverband plaasvind, is daar min bewyse van samewerking ten einde die doel van inkomstegenerering te bereik. 'n Groot leemte is dat doelstellings nooit deur die groep gestel was nie. Darling is 'n landelike toeriste-aantreklikheid met 'n teikenmark vir die verkoop van handwerkprodukte. Hiervoor moet produkte aan sekere vereistes voldoen. Ondanks hierdie geleentheid om produkte onder toeriste te bemark, word daar slegs op die plaaslike mark gemik. Die vereistes van hierdie kliënte is nie 'n prioriteit in die vervaardiging van produkte nie. Die studiegroep is daarom as 'n geskikte geval beskou vir hierdie studie. 'n Intervensieprogram is in groepverband vir die opleiding van vaardighede in die vervaardiging, bemarking en verkope van produkte saamgestel en geïmplementeer. Opnames is gedoen deur selfgeadministreerde vraelyste en ongestruktureerde onderhoude is met belangrike rolspelers gevoer. Werkswinkels is aangebied waartydens vaardigheidstoepassing deur middel van kontrolelyste gemoniteer is. Die toepassing van besigheidsvaardighede is deur 'n semi-gestruktureerde onderhoud bepaal. Die navorser het deurentyd die waarneming gedoen en inligting gedokumenteer. Opnames het aangedui dat die groeplede tussen drie en elf jaar by die naaldwerkaktiwiteite betrokke is. 'n Duidelike behoefte aan vaardigheidsopleiding asook belangstelling in groepwerk is gevind en aangespreek. Selfdiagnose van behoeftes aan vaardigheidsopleiding is tydens besoeke aan afsetgebiede gedoen. 'n Dinkskrum is gehou om idees te genereer vir die maak van produkte om te verkoop. Die vaardighede vir die maak van hierdie produkte is deur middel van werkswinkels gedemonstreer en in opvolgende werksessies deur die studiegroep ingeoefen. 'n Besigheidsvaardigheidswerkswinkel waar basiese beginsels behandel is, is aangebied. Die resultate van groepwerk na die implementering van die intervensie is aan die hand van sukseskriteria wat uit literatuur geïdentifiseer is, geëvalueer. Hierdie stel kriteria bied 'n riglyn vir soortgelyke opleidingsprogramme.
10

Post-occupancy evaluation of state-subsidised housing units in Kayamandi, Stellenbosch

Darkwa, Irene 03 1900 (has links)
Thesis (MSc (Consumer Science)--University of Stellenbosch, 2006. / The South African government drafted a national housing policy in 1994. This policy is being implemented in terms of seven strategies. One of the housing strategies is to provide subsidy assistance to low-income groups to enable them to become home owners and improve their quality of life. The delivery of state-subsidised housing will help to reduce the housing backlog and to reach the goal of eradicating informal settlements by 2014. The purpose of this study was to determine the levels of housing satisfaction of residents in state-subsidised housing units.

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