GlobalGAP (previously EurepGAP) is a voluntary business-to-business standard for food audit that has recently achieved the greatest acceptance worldwide (Campbell, Lawrence & Smith 2006) boasting implementation numbers of over 80,000 farms in 80 countries. Compliance with the standard is verified by means of the third party certification (TPC) audit, and is designed to (GlobalGAP 2008) assure European retailers that exporting producers have met their criteria for safe and sustainable agriculture (GlobalGAP 2007b). In 2004, cherry growers in the Southern Interior of British Columbia became the first GlobalGAP certified producers in Canada. This novelty afforded a unique opportunity to observe the introduction of the standard in an industrialized country with well-established regulations and where the capacity of producers to undertake the process was relatively high. A qualitative methodology was used in case studies of two communities to inductively study the implementation of ‘safe and sustainable agriculture’ certification and generate relevant research questions for deeper examination. Sensitizing concepts emerging from observations of the TPC audits (n = 20) evolved into two primary research objectives; 1) to understand the practical application and diffusion of a TPC standard and 2) to explore the efficacy of the TPC standard as a mechanism to promote sustainable agriculture within certain pre-existing contexts. Forty-four follow up interviews were conducted with growers that chose to certify (n = 24), those that did not (n = 14), and other key actors (n = 3). This thesis examines the research objectives over three chapters. The introduction provides the local and global context along with a review of GlobalGAP, agri-food governance and the role of private certification and retailer power. Chapter two presents the technological and sociological factors that influenced the stages of the diffusion of GlobalGAP TPC and compares these factors and outcomes to the technological and sociological components of sustainable agriculture. In the conclusion, policy strategies are offered to maximize the potential for this tool to promote sustainable agriculture along with suggestions for future research on the topic.

The generation of multigroup neutron cross sections is usually the first step in the solution of reactor physics problems. This typically includes generating condensed cross section sets, collapsing the scattering kernel, and within the context of diffusion theory, computing diffusion coefficients that capture transport effects as accurately possible. Although the calculation of multigroup parameters has historically been done via deterministic methods, it is natural to think of using the Monte Carlo method due to its geometric flexibility and robust computational capabilities such as continuous energy transport. For this reason, a stochastic cross section generation method has been implemented in the Mont Carlo code MCNP5 (Brown et al, 2003) that is capable of computing macroscopic material cross sections (including angular expansions of the scattering kernel) for transport or diffusion applications. This methodology includes the capability of tallying arbitrary-order Legendre expansions of the scattering kernel. Furthermore, several approximations of the diffusion coefficient have been developed and implemented. The accuracy of these stochastic diffusion coefficients within the multigroup framework is investigated by examining a series of simple reactor problems.

Tablet PC is not a brand-new idea. But it did not draw much attention of consumers in the past. However tablet PC became the hottest product since Apple released the iPad in April 2010 which hit 15 million sales record in less than nine months. And this fever drives all of the IT, PC, mobile companies to start their production line. A war of tablet PC is about to begin in 2011. But from consumers¡¦ perspective, is tablet PC so different from its counterpart being utilized currently that attracts consumer to use it? What are the factors influencing the intention to use tablet PC? To answer the question, this study presents an extended technology acceptance model (TAM) integrating innovation diffusion theory and perceived price to examine the factors that influence the adoption of tablet PC. And the proposed model was empirically tested through data collected from an online questionnaire with 536 samples. And principal analysis, ANOVA, multiple regression as well as descriptive statistics were conducted to analyze the data. The findings indicate that all of the factors proposed in the model anticipate potential users¡¦ intention to use tablet PC. Among the factors, perceived enjoyment, perceived ease of use, relative advantage have the most significant influence and image is the least one. This study may extend use of TAM and provide further insights into tablet PC marketing strategies.

GlobalGAP (previously EurepGAP) is a voluntary business-to-business standard for food audit that has recently achieved the greatest acceptance worldwide (Campbell, Lawrence & Smith 2006) boasting implementation numbers of over 80,000 farms in 80 countries. Compliance with the standard is verified by means of the third party certification (TPC) audit, and is designed to (GlobalGAP 2008) assure European retailers that exporting producers have met their criteria for safe and sustainable agriculture (GlobalGAP 2007b). In 2004, cherry growers in the Southern Interior of British Columbia became the first GlobalGAP certified producers in Canada. This novelty afforded a unique opportunity to observe the introduction of the standard in an industrialized country with well-established regulations and where the capacity of producers to undertake the process was relatively high. A qualitative methodology was used in case studies of two communities to inductively study the implementation of ‘safe and sustainable agriculture’ certification and generate relevant research questions for deeper examination. Sensitizing concepts emerging from observations of the TPC audits (n = 20) evolved into two primary research objectives; 1) to understand the practical application and diffusion of a TPC standard and 2) to explore the efficacy of the TPC standard as a mechanism to promote sustainable agriculture within certain pre-existing contexts. Forty-four follow up interviews were conducted with growers that chose to certify (n = 24), those that did not (n = 14), and other key actors (n = 3). This thesis examines the research objectives over three chapters. The introduction provides the local and global context along with a review of GlobalGAP, agri-food governance and the role of private certification and retailer power. Chapter two presents the technological and sociological factors that influenced the stages of the diffusion of GlobalGAP TPC and compares these factors and outcomes to the technological and sociological components of sustainable agriculture. In the conclusion, policy strategies are offered to maximize the potential for this tool to promote sustainable agriculture along with suggestions for future research on the topic.

In this dissertation, three different methods for solving the Boltzmann neutron transport equation (and its low-order approximations) are developed in general geometry and implemented in 1D slab geometry. The first method is for solving the fine-group diffusion equation by estimating the in-scattering and fission source terms with consistent coarse-group diffusion solutions iteratively. This is achieved by extending the subgroup decomposition method initially developed in neutron transport theory to diffusion theory. Additionally, a new stabilizing scheme for on-the-fly cross section re-condensation based on local fixed source calculations is developed in the subgroup decomposition framework. The method is derived in general geometry and tested in 1D benchmark problems characteristic of Boiling Water Reactors (BWR) and Gas Cooled Reactor (GCR). It is shown that the method reproduces the standard fine-group results with 3-4 times faster computational speed in the BWR test problem and 1.5 to 6 times faster computational speed in the GCR core. The second method is a hybrid diffusion transport method for accelerating multi-group eigenvalue transport problems. This method extends the subgroup decomposition method to efficiently couple a coarse-group high-order diffusion method with a set of fixed-source transport decomposition sweeps to obtain the fine-group transport solution. The advantages of this new high-order diffusion theory are its consistent transport closure, straight forward implementation and numerical stability. The method is analyzed for 1D BWR and High Temperature Test Reactor (HTTR) benchmark problems. It is shown that the method reproduces the fine-group transport solution with high accuracy while increasing the computationally efficiency up to 16 times in the BWR core and up to 3.3 times in the HTTR core compared to direct fine-group transport calculations. The third method is a new spatial homogenization method in transport theory that reproduces the heterogeneous solution by using conventional flux weighted homogenized cross sections. By introducing an additional source term via an “auxiliary cross section” the resulting homogeneous transport equation becomes consistent with the heterogeneous equation, enabling easy implementation into existing solution methods/codes. This new method utilizes on-the-fly re-homogenization, performed at the assembly level, to correct for core environment effects on the homogenized cross sections. The method is derived in general geometry and continuous energy, and implemented and tested in fine-group 1D slab geometries typical of BWR and GCR cores. The test problems include two single assembly and 4 core configurations. It is believed that the coupling of the two new methods, namely the hybrid method for treating the energy variable and the new spatial homogenization method in transport theory set the stage, as future work, for the development of a robust and practical method for highly efficient and accurate whole core transport calculations.

Radio frequency identification, also known as RFID technology, has been commercially available since World War II. In recent years, interest has turned toward using RFID in supply chain management, such as monitoring and tracking business processes. There are many businesses that have already invested in an RFID supply chain management solution but little is known about the current state of diffusion of RFID technology and the role of advocacy groups in the diffusion process. This research investigated the current state of RFID diffusion in New Zealand according to diffusion of innovation and Moore’s theory to provide insight into the role of innovation advocacy groups such as New Zealand RFID Pathfinder Group (referred as the NZ RFID Pathfinder Group). RFID in supply chain management terms is inter-organisational and much of the role of advocacy groups is in networking between players in the supply chain management context. Therefore, this research focused on industry group leaders. The research was conducted in two main parts, an online questionnaire survey and a follow up interview. The online questionnaire survey used a quantitative approach while the interview used a qualitative one. In summary, the result show that: 14% industries (seven out of 51) have already adopted RFID technology, the industries were from importer, research institute, manufacturing, and distribution; 36% have plans (16 out of 44) to adopt RFID technology in the near future, the industries were from importer, research institute, manufacturing, and distribution; and 64% industries (28 out of 44) did not any plan to adopt RFID. The strong recommendation was to standardise each aspect of the technology, making the products available to clients and creating competition between RFID technology service suppliers, thus bringing down the cost through market forces. Increasing the number of members of advocacy group could also encourage RFID adoption. One group of potential RFID adopters in the future will be local branches of international companies with a mandate to adopt RFID technology. The results suggest that the NZ RFID Pathfinder Group should set the direction of NZ RFID adoption; get involved in national pilots; and the activities of lobbying governments and associations and information sharing.

GlobalGAP (previously EurepGAP) is a voluntary business-to-business standard for food audit that has recently achieved the greatest acceptance worldwide (Campbell, Lawrence & Smith 2006) boasting implementation numbers of over 80,000 farms in 80 countries. Compliance with the standard is verified by means of the third party certification (TPC) audit, and is designed to (GlobalGAP 2008) assure European retailers that exporting producers have met their criteria for safe and sustainable agriculture (GlobalGAP 2007b). In 2004, cherry growers in the Southern Interior of British Columbia became the first GlobalGAP certified producers in Canada. This novelty afforded a unique opportunity to observe the introduction of the standard in an industrialized country with well-established regulations and where the capacity of producers to undertake the process was relatively high. A qualitative methodology was used in case studies of two communities to inductively study the implementation of ‘safe and sustainable agriculture’ certification and generate relevant research questions for deeper examination. Sensitizing concepts emerging from observations of the TPC audits (n = 20) evolved into two primary research objectives; 1) to understand the practical application and diffusion of a TPC standard and 2) to explore the efficacy of the TPC standard as a mechanism to promote sustainable agriculture within certain pre-existing contexts. Forty-four follow up interviews were conducted with growers that chose to certify (n = 24), those that did not (n = 14), and other key actors (n = 3). This thesis examines the research objectives over three chapters. The introduction provides the local and global context along with a review of GlobalGAP, agri-food governance and the role of private certification and retailer power. Chapter two presents the technological and sociological factors that influenced the stages of the diffusion of GlobalGAP TPC and compares these factors and outcomes to the technological and sociological components of sustainable agriculture. In the conclusion, policy strategies are offered to maximize the potential for this tool to promote sustainable agriculture along with suggestions for future research on the topic. / Science, Faculty of / Resources, Environment and Sustainability (IRES), Institute for / Graduate

This study presents a quantitative study that aims to examine culture as an explanation for the global diffusion of truth commissions. The study is based on the diffusion theory's assumption that cultural equality between countries has a greater significance for the dissemination of truth commissions than geographical proximity. The study will, through a quantitative multivariate analysis, examine correlations between Hofstede's cultural dimensions as the study's theoretical framework and countries that establish truth commissions. The results shows that cultural similarity as an explanation for the spread of truth commissions can be considered better than previous theoretical assumptions. In addition, the results of this study shows that two of Hofstede's cultural dimensions correlate with the establishment of truth commissions. These are long- vs. short-term orientation and indulgence vs restraint. Analysis of the results shows that countries that establish truth commissions have a shorter time orientation and a high degree of indulgence. Additionally, the thesis adds another dimension of the theory and a more in depth understanding of which cultural factors stand as responsible for the diffusion of truth commissions globally.

The issue of homelessness is one that many cities and states in the United States have to contend with; however, the issue of homelessness on an island can be even more difficult to find viable solutions. The homeless problem on the island of O`ahu is one that affects not only residents but also tourists. The purpose of this qualitative case study was to reveal the perceptions of policy makers on the island of O`ahu, Hawai`i if diffusing public policy from Salt Lake City, Utah, would help ameliorate homelessness on the island. The theoretical framework was the diffusion theory and diffusions of innovation. These conceptual frameworks provided a lens to find viable solutions to reduce homelessness on O`ahu. Data was collected utilizing a triangulation process, whereas surveys were completed and collected from 18 policy makers, 3 knowledgeable sources were interviewed, and reports and articles from Salt Lake City and O`ahu were analyzed regarding homeless policies to ascertain whether diffusing policy would ameliorate homelessness on O`ahu. The data collected was then analyzed and hand coded to identify themes and patterns. Results indicated that affordable housing, a coordination of services, as well as a collaborative relationship with other organizations, would help with reducing homelessness on O`ahu. Furthermore, adopting policy from Salt Lake City would have to be adjusted for cultural issues of the population as well as a shortage of available land on O`ahu; however, the majority of the lawmakers found value in the plan implemented in Salt Lake City. The implications for positive social change are directed at informing policy makers about the necessity to diffuse policy from Salt Lake City to ameliorate homelessness on O`ahu.

Millions of people use mobile phone banking daily, and business leaders should understand the factors influencing mobile phone banking adoption among users. Based on the theory of technology acceptance model and the innovation diffusion theory, the purpose of this correlational study was to examine the relationship between usefulness, ease of use, risk, cost, and mobile phone banking adoption in Burkina Faso. One hundred and six mobile phone banking users living in the city of Ouagadougou completed the online survey created to measure consumers understanding of mobile phone banking. Results of the multiple linear regression analysis indicated a statistically significant relationship between the predictor variables and mobile phone banking adoption, F(5,101) = 36.07, p < .001. Three of the predictors contributed significantly to the model, with usefulness recording the highest beta value (Ã? = .692), cost the next highest beta value (Ã? = .225), and ease of use the next highest beta value (Ã? = .173). The 4th predictor, risk, did not contribute significantly to the model, recording a negative beta value (Ã? = -.058). Results may enhance local business leaders' understanding of mobile phone banking adoption, which could result in more effective business strategies to increase the affordability, availability, and quality of mobile banking services for Burkina Faso residents. Development of the mobile phone banking industry could enable business leaders to foster access to affordable financial services for individuals and contribute to the development of Burkina Faso's local economy and trade.