4,232 research outputs found

    Information technology in pre-service teacher education within a New Zealand College of Education : a thesis presented in partial fulfilment of the requirements for the degree of Master of Education at Massey University

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    This thesis examines the use of Information Technology (IT) by lecturers and pre-service student teachers at the Auckland College of Education to provide a basis for future development of policy and programmes. The concept of IT is examined and the term defined in terms of a broad range of artefacts, knowledge and skills which includes the use of computers, but also other technologies for handling and storing information. Information skills are also identified as being an important component of IT. The development of IT use in pre-service teacher education is examined in New Zealand, and for comparison in the United Kingdom, the U.S.A. and Australia. The survey demonstrates that the place of IT in pre-service teacher education was originally ignored by education authorities in those countries in favour of in-service teacher education, but in recent years has has become the subject of official concern and, overseas, action. The establishment of goals and standards for pre-service IT teacher education is one reflection of this concern in a number of countries. The literature indicates a number of issues that need to be addressed if pre-service teacher education institutions are to successfully prepare teachers to work in IT- enhanced schools. These include the development of teacher education programmes which integrate IT and emphasise its pedagogical use, the. provision of adequate IT teaching experience for student teachers, the provision of resources and staff development for teacher educators. A survey of lecturers, first and final year primary student teachers, and graduating secondary student teachers indicates that, while all groups have a high degree of access to computers and many have basis skills in using software, the use of computers and other information technologies within the College curriculum is limited. All groups believe that skills in using IT are important for beginning teachers but most lecturers do not model its use or teach its use in schools. Students have limited experience in using IT during practicum sessions, and lecturers, themselves, have limited practical experience of IT in education. The importance of strategies indicated by the literature for improving this aspect of pre-service teacher education is supported by the findings of the research. The various factors identified as influencing pre-service teacher education are summarised in a model which draws attention to the different sites in which students develop a range of skills, knowledge and attitudes, all of which affect their understanding and capacity to use IT in their teaching roles. In the light of these findings, and the absence of any previous New Zealand research in this area, the study identifies areas where there is a need for further research. It is argued that such research is urgently needed in view of growing concern at the ineffectiveness of pre-service teacher education in this area

    A comparison of the performance of humans and computational models in the classification of facial expression

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    Recognizing expressions are a key part of human social interaction, and processing of facial expression information is largely automatic for humans, but it is a non-trivial task for a computational system. In the first part of the experiment, we develop computational models capable of differentiating between two human facial expressions. We perform pre-processing by Gabor filters and dimensionality reduction using the methods: Principal Component Analysis, and Curvilinear Component Analysis. Subsequently the faces are classified using a Support Vector Machines. We also asked human subjects to classify these images and then we compared the performance of the humans and the computational models. The main result is that for the Gabor pre-processed model, the probability that an individual face was classified in the given class by the computational model is inversely proportional to the reaction time for the human subjects

    Quantitative Analysis of Saliency Models

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    Previous saliency detection research required the reader to evaluate performance qualitatively, based on renderings of saliency maps on a few shapes. This qualitative approach meant it was unclear which saliency models were better, or how well they compared to human perception. This paper provides a quantitative evaluation framework that addresses this issue. In the first quantitative analysis of 3D computational saliency models, we evaluate four computational saliency models and two baseline models against ground-truth saliency collected in previous work.Comment: 10 page

    The Effect of NAG–thiazoline on Morphology and Surface Hydrophobicity of Escherichia Coli

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    The β-hexosaminidase inhibitor and structural analog of the putative oxazolium reaction intermediate of lytic transglycosylases, N-acetylglucosamine thiazoline (NAG–thiazoline), was synthesized in 46% overall yield and tested as an inhibitor of Escherichia coli growth. NAG–thiazoline, at concentrations up to 1 mg/ml, was not found to affect the viability of E. coli DH5α

    Crime control through housing management

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    Over the last decade the management of social housing in England and Wales has extended to the formal control of bad behaviour. This thesis charts the political development of this increasingly important function and the legal infrastructure within which it operates. Part one explores the development of the crime control function of social landlords over the last decade within its political, social and economic context. Part two then provides a critique of the resultant emphasis upon public protection within housing policy by identifying the conflicts and tensions this has created with the competing discourses of legal due process and welfarism
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