64,491 research outputs found

    Teacher beliefs and constraints in implementing a context-based approach in chemistry

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    Context-based chemistry is a new teaching approach which applies the concepts studied to contexts relevant to students. In Queensland a syllabus adopting a context-based approach to Years 11 and 12 Chemistry has been piloted over the last five years in selected classrooms. This article reports on a study evaluating the success of the pilot. The study offers significant support for the value of context-based chemistry in the senior secondary years, while also noting the challenges that the new approach presents for students, teachers and parents

    T-Duality and Double Field Theory

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    The purpose of this thesis is to study a symmetry of string theory known as T-duality. We focus on a particular example establishing the equivalence between a quantized string moving in a circular space of radius R and a dual string moving in a similar space of radius 1/R . We will show that this duality implies that the momentum of the string in one picture becomes the number of times the string is wound around the circle in the dual picture. We present two proofs of T-duality. The first reflects the standard interpretation of T-duality as an isomorphism of quantum theories. The second approach is based on Hull\u27s Double Field Theory

    Unethical consumers: Deshopping behaviour using the qualitative analysis of theory of planned behaviour and accompanied (de)shopping

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    Purpose Previous research indicates that deshopping is a prevalent and growing consumer behaviour. This paper examines deshopping from a consumer perspective, and applies the Theory of Planned Behaviour (TPB) to demonstrate how this behaviour can be managed and prevented. An accompanied (de)shop is also conducted. This paper also places deshopping within a legal and ethical context, in relation to the established literature in this field. Methodology approach This paper tests the TPB variables in a qualitative way by conducting in-depth interviews with deshoppers, who had completed a quantitative questionnaire. The results further support and enhance the quantitative TPB results collected previously with 535 consumers. An accompanied (de)shop is also reviewed, as this qualitative research technique, enables an enhanced understanding and evidence of the deshopping process, which has not been demonstrated previously. The findings demonstrate support for these qualitative research tool, which enable a deeper understanding of the deshopping process and its management. Findings The findings demonstrate important use of the TPB as a qualitative research technique. The model is also expanded and redesigned by adding additional variables as a result of this research. The accompanied (de)shop findings demonstrate support for this qualitative research tool, which also enables a deeper understanding of the deshopping process and its management. Practical implications The research concludes with the implications of deshopping for the industry and makes recommendations as how to reduce deshopping, as well as recommending the qualitative research techniques utilised to future researchers. Originality This paper has identified the key variables that influence deshopping, and demonstrates that procedures can be designed to reduce this behaviour by manipulating the TPB variables. This paper has also added additional variables to the TPB model, which have proved to be influential in deshopping behaviour, thereby developing theoretical knowledge of TPB. The use of the TPB has also provided a theoretical underpinning to utilising a consumer education program to prevent problem behaviours. This research demonstrates that this could alter deshoppers’ attitudes and subjective norms. This is also the first paper to place deshopping in a legal framework which highlights the legal loopholes in a retailer’s returns policy and the implications of new directives which will influence retailer’s abilities to refuse a return. This paper is also the first to explore deshopping within an ethical framework that has created new knowledge on the unethical consumer in relation to deshopping behaviour. This study also incorporates an accompanied (de)shop methodology; this form of research has never been undertaken in relation to deshopping activity and has generated completely new knowledge of what is happening when the actual behaviour is taking place

    The management of deshopping and its effects on services: a mass market case study

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    Purpose: Deshopping is the return of products, after they have fulfilled the purpose for which they were borrowed. Previous research indicates that deshopping is a prevalent and growing consumer behaviour. This paper examines deshopping from a retail perspective. It is a case study of interviews conducted with a mass-market retailer, to investigate their awareness and management of this behaviour. Methodology: This paper is a case study of nine interviews conducted with different levels of staff at a mass-market retailer in their flagship London store, to investigate their awareness and management of deshopping. Findings: The findings demonstrate the beliefs, attitudes and emotions of the different levels of employees towards deshopping and demonstrates their attempts to manage deshopping and combat the negative affects of this on customer service. Research limitations: The limitation of this research is that it is only conducted with one high street retailer. However, it is important to highlight that this is a large womenswear retailer which is highly representative of other retailers within the sector. There is little detail given regarding the retailer itself or their fundamentals of the actual Customer Service Policy, this is due to the confidentiality agreement between the researcher and retailer. It is important to acknowledge the sensitivity of this type research to retailers who are reluctant to have this information publicised. It is also important to acknowledge that many retailers have not made any attempts to manage this behaviour by restricting their returns policy. So this research case study is conducted with a retailer that is actively introducing change to manage this behaviour. Practical implications: The research concludes with the implications of deshopping and its management and makes recommendations on how to reduce deshopping whilst maintaining customer service for the genuine consumer. Originality/value of the paper: This is the first case study with a mass market retailer highlighting their approaches towards managing deshopping whilst trying to maintain customer service

    The cylindrical antenna with non-reflecting resistive loading

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    Distribution of current along center-driven cylindrical antenna with variable internal impedance per unit lengt

    On the rooted Tutte polynomial

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    The Tutte polynomial is a generalization of the chromatic polynomial of graph colorings. Here we present an extension called the rooted Tutte polynomial, which is defined on a graph where one or more vertices are colored with prescribed colors. We establish a number of results pertaining to the rooted Tutte polynomial, including a duality relation in the case that all roots reside around a single face of a planar graph. The connection with the Potts model is also reviewed.Comment: plain latex, 14 pages, 2 figs., to appear in Annales de l'Institut Fourier (1999
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