In the last decade, PSS (Product/ Service System) emerged as a new effective business model in helping manufacturers increase significantly productivity and customer’s satisfaction, whist minimizing environmental impact. PSS contributes drastically to the development of an innovative transaction trend, in which rather than just providing physical products separately, industrial Companies are more focusing on integrated service offers and customer’s need fulfillment.    However, to implement successfully PSS, manufacturers have to overcome many challenges and uncertainties. The uncertainties in the PSS planning phase are related to market, environment or company analysis; reliability, product/service integration, supplier coordination etc in the design and development stages are considered as potential uncertainties. Uncertainty is defined as “State of deficiency of information related to a future event” (Sakao et al., 2009). In which, risks derived from negative side of uncertainties may reduce efficiency of the model or even make the implementation process fail to some extent. If the uncertainty is resolved in a favorable way, risks can be seen as potential business opportunities for the development of PSS Companies. While many Companies already have their own uncertainty management initiative; others just utilize their long time experience to treat uncertainties. Therefore, numerous Companies are seeking a comprehensive uncertainty management framework that could be applicable in most circumstances. In order to fulfill this urgent need, our thesis aimed to develop a holistic framework in order to manage risks occurred in PSS planning, design and development stages. Based on previous valuable PSS researches and useful empirical data collected, our dissertation first determined successfully critical uncertainty factors and potential business opportunities exploited from those. In addition, the research investigated elaborately PSS product quality thresholds and producers’ perception on reliability of their products before constructing a general uncertainty management framework. In which the whole management process based on Active Risk Management philosophy, included Risk Management Planning, Risk Identification, Risk Assessment and Prioritization, Risk Quantification, Risk Response Planning, Risk Tracking and Control were introduced as a helpful guideline to support PSS Companies to treat effectively uncertainties in PSS planning, design and development.

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.

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.

Equal opportunity offices have been described as agencies of organisational change, and the term ‘cultural change’ has been used to describe aspects of equal opportunity work.Universities are sites of organisational cultures where equal opportunity officers have worked in Australia for the past decade. In this time there have been significant changes to higher education, in terms of the size of the university sector in Australia, and also in terms of funding, governance and management. These changes in universities provided the context for questions about the roles of equal opportunity officers in universities, and how they may have changed. This research investigated the practice of equal opportunity officers in universities by using a grounded theory approach to generate understandings about how this group of university staff may have impacted on university cultures. The study develops links between theories of culture and organisational change that was situated in the practices of equal opportunity officers.The research identified a central conceptual category that was described as ‘picking the pitch’, as the main theme in the work of equal opportunity officers in identifying issues and gaining support for a cultural change agenda. All of the preliminary themes that were identified, and the interactions, the observations and the analysis of culture were prerequisites for ‘picking the pitch’.The thesis uses the research for further reflection and integration of the goals of equal opportunity, and the means that were available to equal opportunity officers to achieve these goals. The interactions of power and influence, and some of the limitations on equal opportunity officers are discussed.In the thesis the usefulness of the concept of culture to equal opportunity officers is examined, along with the underpinning theories about the mind of humanity that contributed to their approach to their task.Finally, the thesis discusses the impact of the research for equal opportunity officers, and for the universities in which they worked.

Equal opportunity offices have been described as agencies of organisational change, and the term ‘cultural change’ has been used to describe aspects of equal opportunity work.Universities are sites of organisational cultures where equal opportunity officers have worked in Australia for the past decade. In this time there have been significant changes to higher education, in terms of the size of the university sector in Australia, and also in terms of funding, governance and management. These changes in universities provided the context for questions about the roles of equal opportunity officers in universities, and how they may have changed. This research investigated the practice of equal opportunity officers in universities by using a grounded theory approach to generate understandings about how this group of university staff may have impacted on university cultures. The study develops links between theories of culture and organisational change that was situated in the practices of equal opportunity officers.The research identified a central conceptual category that was described as ‘picking the pitch’, as the main theme in the work of equal opportunity officers in identifying issues and gaining support for a cultural change agenda. All of the preliminary themes that were identified, and the interactions, the observations and the analysis of culture were prerequisites for ‘picking the pitch’.The thesis uses the research for further reflection and integration of the goals of equal opportunity, and the means that were available to equal opportunity officers to achieve these goals. The interactions of power and influence, and some of the limitations on equal opportunity officers are discussed.In the thesis the usefulness of the concept of culture to equal opportunity officers is examined, along with the underpinning theories about the mind of humanity that contributed to their approach to their task.Finally, the thesis discusses the impact of the research for equal opportunity officers, and for the universities in which they worked.

Mobile devices with wireless networking capabilities are used in a wide range of environments. Geolocation information increases the value of the data generated by a device and is vital in the development of a wide range of applications from autonomous vehicles to the Internet of things. Systems that generate signals specifically for geolocation have become widely adopted but, due to fundamental constraints, lack coverage and accuracy in complex urban and indoor environments. In addition to this, the reliance on a single signal source is not desirable in many applications that value the integrity of the geolocation estimate. A direction of research aiming to improve geolocation in indoor and urban environments measures signals of opportunity in order to generate a more robust estimate. While this approach improves signal availability, the unpredictable nature of these variable and uncontrolled signals leads to poor geolocation estimates, which are typically not suitable for use in many applications. This project aims to improve on the accuracy, resilience and integrity of a geolocation estimate obtained from signal of opportunity measurements in indoor and urban environments while reducing hardware requirements. This has been achieved by efficiently coupling signals of opportunity within the radio environment with other system signals, such as those from an inertial measurement unit. Research has been carried out to optimise the coupling of these data sources resulting in techniques to allow the identification and removal of key error drivers from both the radio environment and other system sensors. This thesis proposes a specifically designed extended Kalman filter to improve on the signal coupling. The filter aims to optimise the accuracy of radio environment measurements while also providing the ability to identify signal error sources in urban and indoor environments, leading to both greater accuracy and resilience of the geo-location estimate. Further, the proposed extended Kalman filter may use the radio environment as a source of geolocation data. The ability of the filter to recognise and mitigate leading radio environment error sources such as multipath and interference allowed the design of filters to obtain detailed and accurate signal strength and time of arrival information. The thesis also presents a thorough set of simulation and modelling experiments to investigate and optimise the efficiency of the proposed solutions in a range of environments. Validation testing confirmed that in the urban and indoor environments, the average error of geo-location estimates has been reduced from 10 m to 3 m without improvement to the hardware surrounding infrastructure. The improvements presented in this thesis allow networked devices to improve the value of their data by incorporating the context that comes from increased geolocation accuracy and resilience. In turn, this allows the development of a wide range of new location based applications for mobile devises in indoor and urban environments.

abstract: Scholars have highlighted the role of disturbance and crisis, including disasters, in enabling systemic change towards sustainability. However, there are relatively few empirical studies on how individuals and organizations are able to utilize disasters as opportunities for change towards sustainability. This dissertation addresses three questions applied to two case studies: First, what changes were pursued in the aftermath of disasters, and to what extent did these changes contribute to sustainability? Second, how were people (and their organizations) able to pursue change towards sustainability? Third, what can be learned about seeing and seizing opportunities for change towards sustainability in disaster contexts and about sustaining those introduced changes over time? The research entailed the creation of a theoretical framework, synthesizing literature from disaster studies and sustainability transition studies, to enable cross-case comparison and the appraisal of sustainability outcomes (Chapter 1). The framework was applied to two empirical case studies of post-disaster recovery: the 2004 Indian Ocean Tsunami in Aceh, Indonesia (Chapter 2), and the 2010-2012 series of earthquakes in the greater Christchurch area, New Zealand (Chapter 3). The research revealed no systemic change towards sustainability in either case, although change towards sustainability was pursued in various areas, such as housing, educating, caring, and engaging in governance. Opportunities for sustainability emerged at different points following the disaster; change processes are ongoing. The sustainability changes were supported by “Sustainability Change Agents” (SCAs): people who were able to see and seize opportunities for change towards sustainability in the midst of disaster. SCAs were characterized as individuals with various attributes, starting with an ability to perceive opportunities, catalyze others to support this risk-taking endeavor, and stay in the endurance race. The study concludes with some recommendations for interventions to inform pre-disaster sustainability planning. These avenues include a toolbox and a curricular approach that would educate and enable students as future professionals to see and seize opportunities for change towards sustainability in disaster contexts (Chapter 4). / Dissertation/Thesis / Doctoral Dissertation Sustainability 2016

Abstract The purpose of this research was to gain a more profound understanding of the emergence of the business opportunities, and to enhance the development of entrepreneurship theory in relation to this context. This research is to understand two issues: How does a business opportunity emerge? What makes it possible? This dissertation builds a conceptual framework of the process of creating the Business Opportunity and concentrates on three interrelated sub-processes emerging in it: Business Ideation Process, Business Modeling Process and Business Planning Process. The Business Ideation is defined as creating an idea of the business opportunity with a clear focus on the customer, consideration, connection, and/or commitment. The Business Modeling Process is the conceptual model of the future business opportunity consisting elements such as: value creation; firm’s internal source of advantage; position in the marketplace; profit making; and entrepreneur’s perspective. Finally, the Business Planning Process is the implementation plan of the conceptual business opportunity. The scientific choices are based on the critical realism that highlights reality simultaneously as existing independently of its observers and acknowledges the role of an actor (the entrepreneur) as being constrained by it as well as being able to change it. Furthermore, this dissertation treats the process of creating the business opportunities as creative process based on the idea of a personal (or everyday) creativity and the method of creative problem solving. The results indicate that the nature of the process of creating the Business Opportunities, the BOC process, allows all people to be treated as entrepreneurs if they play the role of the entrepreneur by interacting (more or less creatively) with business ideating, business modeling and business planning processes. Hence, the creative problem solving method utilized in every sub-process will free the entrepreneur from the restraint of the dominant insight of the opportunity that sees it as a true vision of the future business venture. Here, the business opportunities are created during the process. Furthermore, the results show a keen interplay between the process of creating business opportunities and their exploitation. Hence, the BOC process appears to be an essential part of the overall entrepreneurial process.

Class of 2006 Abstract / Advanced Pharmacy Practice Experiences (APPE) provide students an opportunity to develop and demonstrate skills and competencies desired by future employers. The purpose of this study is to examine the impact of performance during APPE rotations on post-graduation hiring practices within the graduates and preceptors of the University of Arizona College of Pharmacy. Alumni who graduated from The University of Arizona College of Pharmacy between the years of 1991 and 2005 were surveyed to determine the impact preceptors had on their employment opportunities after pharmacy school (153 of 734 responded). APPE preceptors for The University of Arizona College of Pharmacy were also surveyed regarding the effect that APPE rotation performance has on the student’s future employment opportunities (84 of 272 responded). Study results show that of the alumni surveyed, 64% (n=96) answered that they asked a clerkship/rotation preceptor to provide references for a job or residency application. Further results show 60% (n=91) of alumni answered that their clerkship/rotation experience did increase their interest in post graduation employment at that specific site. Preceptor response confirmed that the student’s performance had a dramatic impact on his/her hiring potential. Of the preceptors surveyed, 74% (n=62) intentionally tried to hire students based on their clerkship/rotation performance, while 55% (n=46) avoided hiring students based on their clerkship/rotation performance. There is a noteworthy association between student performance and postgraduate employment opportunities. These results emphasize the importance of student performance during APPE rotations.

This thesis investigates the revenue management (RM) problem encountered in an airport carpark of finite capacity, where the available parking spaces should be sold optimally in advance in order to maximise the revenues on a given day. Customer demand is stochastic, where random pre-booking times and stay lengths overlap with each other, a setting that generates strong inter-dependence among consecutive days and hence leads to a complex network optimisation problem. Several mathematical models are introduced to approximate the problem; a model based on a discrete-time formulation which is solved using Monte Carlo (MC) simulations and two single-resource models, the first based on a stochastic process and the other on a deterministic one, both developed in continuous-time that lead to a partial differential equation (PDE). The optimisation for the spaces is based on the expected displacement costs which are then used in a bid-price control mechanism to optimise the value of the carpark. Numerical tests are conducted to examine the methods’ performance under the network setting. Taking into account the methods’ efficiency, the computation times and the resulting expected revenues, the stochastic PDE approach is shown to be the preferable method. Since the pricing structure among operators varies, an adjusted model based on the stochastic PDE is derived in order to facilitate the solution applicable in all settings. Further, for large carparks facing high demand levels, an alternative second-order PDE model is proposed. Finally, an attempt to incorporate more information about the network structure and the inter-dependence between consecutive days leads to a weighted PDE scheme. Given a customer staying on day T, a weighting kernel is introduced to evaluate the conditional probability of stay on a neighbouring day. Then a weighted average is applied on the expected marginal values over all neighbouring days. The weighted PDE scheme shows significant improvement in revenue for small-size carparks. The use of the weighted PDE opens the possibility for new ways to approximate network RM problems and thus motivates further research in this direction.