No description available.

A Global Positioning System (GPS) can be used to estimate an objects position,given that the object has a GPS antenna. However, the system requires informationfrom at least four independent satellites in order to be able to give a positionestimate. If two GPS antennas and a carrier-phase GPS measurement unit is usedan estimate of the objects heading can be calculated by determine the baselinebetween the two antennas. The method is called GPS Attitude Determination(GPSAD) and requires that an Integer Ambiguity Problem (IAP) is solved. Thismethod is cheaper than more traditional methods to calculate the heading butis dependent on undisturbed GPS-reception. Through support from an InertialMeasurement Unit (IMU), containing accelerometers and gyroscopes, the systemcan be enhanced. In Thorstenson [2012] data from GPS, GPSAD and IMU wasintegrated in an Extended Kalman Filter (EKF) to enhance the performance. Thisthesis is an extension on Thorstensons work and is divided into two separate problems:enhancement of positioning when less than four satellites are available andthe possibility to integrate the EKF with the search of the correct integers for theIAP in order to enhance the estimation of attitude. For both problems an implementationhas been made and the performance has been enhanced for simulateddata. For the first problem it has been possible to enhance the performance onreal data while that has not been possible for the second problem. A number ofproposals is given on how to enhance the performance for the second problemusing real data.

There is no abstract available for this dissertation.

The present study examined the psychometric properties of a new instrument, the Multidimensional Attitude Toward Older Adults Scale (MATOAS), administered to a total of 787 undergraduate students at a Midwestern university. Factor structure of the MATOAS was investigated with a split-sampling approach in order to cross validate the findings between exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). EFA suggested a four-factor structure with 25 items. These factors were named Respect and Appreciation (R-A), Irritation and Intolerance (I-I), Work Interests (W-I), and Social Connectedness (S-C). The results of CFA testing of the higher-order four-factor model showed significant improvement in various fit indices from the previously tested tripartite attitudes model (Rosenberg & Hovland, 1960) and the uni-dimensional model.The MATOAS demonstrated fairly high internal consistency reliability (α = .88) and high test-retest reliability over a one week period (r =.89, p < .001). Convergent validity of the MATOAS with the refined version of the Aging Semantic Differential Scale (Polizzi & Millikin, 2002) and divergent validity with the 13-item Marlowe-Crowne Social Desirability Scale (Reynolds, 1982) also were promising. The present study provides extensive reviews of the Kogan Attitudes Toward Old People scale (Kogan, 1961 a) and the Aging Semantic Differential (Rosencranz & McNeivin, 1969) as well as established and contemporary guidelines for scale development work. / Department of Counseling Psychology and Guidance Services

The purpose of this study was to examine the effect of different types of consumer knowledge and values on their attitude towards buying organic personal care products and their purchase intentions of organic personal care products. The aim was to make a theoretical contribution to the research area of consumer behaviour in the context of organic products. As no research had been conducted on how different types of consumers’ knowledge affect their attitudes towards buying organic products and their purchase intentions of organic products, this study aims to address this research gap. In addition, while previous studies have mainly focused on organic foods this study aims to enhance knowledge about the little researched sector of organic personal care products.

The aim of this study was to describe false consensus in romantically involved couples. False consensus is the tendency of the perceiver to overestimate the degree to which other people agree with his or her beliefs, opinions and behavioral choices. Previous research has demonstrated false consensus in a variety of situations and circumstances, but prior to this study false consensus had not been measured in couples. This study asked two research questions: (1) Does false consensus occur at the same rate in romantically involved couples that it occurs in non-couples? (2) Does false consensus occur less in romantically involved couples in longer-term relationships? In order to examine these questions this study surveyed 143 couples using modified versions of the Relationship Beliefs Scale (RBS) and the Attitudes Toward Divorce Scale (ATDS). The scale were modified to measure false consensus by adding the question “Do you believe that your partner agrees with your view on this item?” to each item. The results indicated that while false consensus does occur in couples it occurs at a lower rate than in non-couples. This study did not find a relationship between false consensus and length of time in the relationship. Clinical implications are discussed. / Department of Counseling Psychology and Guidance Services

The primary objective of this study was to assess the attitude of grade 12 learners towards entrepreneurship. This primary objective was achieved through the discussion and evaluation of the secondary objectives. The secondary objectives included the literature review relative to entrepreneurship, the empirical study and making practical recommendations. The study was conducted in a selected area in the North-West province, with a specific focus on the region as clustered by the Department of Education of the Kgetlengrivier Local Municipality. A comprehensive literature review was conducted. In the literature review entrepreneurship was defined based on an entrepreneur’s point of view and also as a process. The literature review also discussed the current state of entrepreneurship in South Africa, education and training models including measures to fast track entrepreneurship adoption among learners, and various models of entrepreneurial development. The assessment of attitude, entrepreneurial intentions of learners and opportunity recognition were other subjects covered in the literature review chapter. After the literature review, the empirical study was conducted by means of a self- completion questionnaire administered to grade 12 learners. The questionnaire was distributed to a total of 299 learners, and the feedback accumulated to 274 respondents, which represent a good response rate of 92%. Chapter 3 focused on the empirical research by discussing the results obtained from the questionnaire. The questionnaire was structured in such a way that it firstly deals with the respondents’ demographic information, after which it assesses attitude towards entrepreneurship, followed by ways of seizing entrepreneurial opportunities, and establishing the entrepreneurial environment in secondary schools including in South Africa. Furthermore, relations were determined between demographic variables and the constructs used to measure attitude towards entrepreneurship. Following the detailed analysis of chapter 3, conclusions and recommendations were summoned to chapter 4. Overall, the results indicated a view that learners are not entirely pruned to entrepreneurship due influential factors such as their parents’ or guardian’s lack of involvement in business. Furthermore, it also indicated that if learners are afforded constructive mentorship, they can be more inclined to entrepreneurship. Similarly, if they are financially assisted or motivation is provided by the government and private sectors, they can be able to venture into business. / Thesis (MBA)--North-West University, Potchefstroom Campus, 2013.

Divorce can be seen as one of the major causes of single-parent households (Janzen & Harris, 1997:134). Among the obvious difficulties families face as a result of divorce, other difficulties such as lack of time for family bonding and family leisure directly affect the well-being of the entire single-parent family (Arnold et al., 2008:84; Hornberger et al., 2010:158). Families form the foundation of society and the most important relationship in a family is that between the parents. If this relationship is strong, the rest of the relationships in the family will fall into place (Fields & Casper, 2001; Hornberger et al., 2010:143). It is important for the parents to have a strong relationship with each other, since this is a child’s first example of what a healthy relationship should be like. Therefore the relationship between parents could be seen as the base for the relationship between parent and child (Leman, 2000:164). Shaw and Dawson (2001:228) conclude that some parents do not participate in leisure activities for enjoyment, nor is it intrinsically motivated; parents see it as a responsibility and duty while they are feeling frustrated by doing something they wish not to. Therefore the purpose of this study was to firstly review the literature to determine whether it supports the usage of a leisure-based programme to strengthen the relationship between divorced single parents and their children; secondly, to explore and describe the role of a leisure-based programme in developing attitudes as well as in strengthening relationships between single parents and their children. The two-fold research objectives were studied by means of two different strategies. The first was a literature review done to analyse the research problem. Books, journals, dissertations, theses and Internet sources published between 1993 and 2011 were used to give a theoretical exposition of this study. Research concluded that leisure programmes have the potential of developing parent-child relationships. A qualitative research method was applied to research the second purpose of this study. Two divorced single-parent families participated in this ethnographic research study. Data was gathered by means of participant observation, field-notes and a semi-structured interview with each individual family member (De Vos, 2005:296; Veal, 2006:386). The researcher worked through the process of open-coding and then two main themes were identified during content analysis. The first was attitudes which had its own set of categories, namely self-esteem and self-empowerment and motivation. The second theme was relationships consisting of communication, problem solving, respect and trust. It could be concluded that if the elements in the themes are developed it would lead to the enhancement of the main theme. As a result of families participating in the leisure-based programme it was established that the development of self-esteem and self-empowerment as well as motivation led to the improvement of attitudes. Similarly, the enhancement of communication, problem solving, respect and trust contributed to the improvement of relationships. / Thesis (MA (Recreational Science))--North-West University, Potchefstroom Campus, 2013.

The primary objective of this study was to assess the attitude of grade 12 learners towards entrepreneurship. This primary objective was achieved through the discussion and evaluation of the secondary objectives. The secondary objectives included the literature review relative to entrepreneurship, the empirical study and making practical recommendations. The study was conducted in a selected area in the North-West province, with a specific focus on the region as clustered by the Department of Education of the Kgetlengrivier Local Municipality. A comprehensive literature review was conducted. In the literature review entrepreneurship was defined based on an entrepreneur’s point of view and also as a process. The literature review also discussed the current state of entrepreneurship in South Africa, education and training models including measures to fast track entrepreneurship adoption among learners, and various models of entrepreneurial development. The assessment of attitude, entrepreneurial intentions of learners and opportunity recognition were other subjects covered in the literature review chapter. After the literature review, the empirical study was conducted by means of a self- completion questionnaire administered to grade 12 learners. The questionnaire was distributed to a total of 299 learners, and the feedback accumulated to 274 respondents, which represent a good response rate of 92%. Chapter 3 focused on the empirical research by discussing the results obtained from the questionnaire. The questionnaire was structured in such a way that it firstly deals with the respondents’ demographic information, after which it assesses attitude towards entrepreneurship, followed by ways of seizing entrepreneurial opportunities, and establishing the entrepreneurial environment in secondary schools including in South Africa. Furthermore, relations were determined between demographic variables and the constructs used to measure attitude towards entrepreneurship. Following the detailed analysis of chapter 3, conclusions and recommendations were summoned to chapter 4. Overall, the results indicated a view that learners are not entirely pruned to entrepreneurship due influential factors such as their parents’ or guardian’s lack of involvement in business. Furthermore, it also indicated that if learners are afforded constructive mentorship, they can be more inclined to entrepreneurship. Similarly, if they are financially assisted or motivation is provided by the government and private sectors, they can be able to venture into business. / Thesis (MBA)--North-West University, Potchefstroom Campus, 2013.

Divorce can be seen as one of the major causes of single-parent households (Janzen & Harris, 1997:134). Among the obvious difficulties families face as a result of divorce, other difficulties such as lack of time for family bonding and family leisure directly affect the well-being of the entire single-parent family (Arnold et al., 2008:84; Hornberger et al., 2010:158). Families form the foundation of society and the most important relationship in a family is that between the parents. If this relationship is strong, the rest of the relationships in the family will fall into place (Fields & Casper, 2001; Hornberger et al., 2010:143). It is important for the parents to have a strong relationship with each other, since this is a child’s first example of what a healthy relationship should be like. Therefore the relationship between parents could be seen as the base for the relationship between parent and child (Leman, 2000:164). Shaw and Dawson (2001:228) conclude that some parents do not participate in leisure activities for enjoyment, nor is it intrinsically motivated; parents see it as a responsibility and duty while they are feeling frustrated by doing something they wish not to. Therefore the purpose of this study was to firstly review the literature to determine whether it supports the usage of a leisure-based programme to strengthen the relationship between divorced single parents and their children; secondly, to explore and describe the role of a leisure-based programme in developing attitudes as well as in strengthening relationships between single parents and their children. The two-fold research objectives were studied by means of two different strategies. The first was a literature review done to analyse the research problem. Books, journals, dissertations, theses and Internet sources published between 1993 and 2011 were used to give a theoretical exposition of this study. Research concluded that leisure programmes have the potential of developing parent-child relationships. A qualitative research method was applied to research the second purpose of this study. Two divorced single-parent families participated in this ethnographic research study. Data was gathered by means of participant observation, field-notes and a semi-structured interview with each individual family member (De Vos, 2005:296; Veal, 2006:386). The researcher worked through the process of open-coding and then two main themes were identified during content analysis. The first was attitudes which had its own set of categories, namely self-esteem and self-empowerment and motivation. The second theme was relationships consisting of communication, problem solving, respect and trust. It could be concluded that if the elements in the themes are developed it would lead to the enhancement of the main theme. As a result of families participating in the leisure-based programme it was established that the development of self-esteem and self-empowerment as well as motivation led to the improvement of attitudes. Similarly, the enhancement of communication, problem solving, respect and trust contributed to the improvement of relationships. / Thesis (MA (Recreational Science))--North-West University, Potchefstroom Campus, 2013.