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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Subjectivity and pedagogy in a context of social change.

Ferreira, Ana Cristina 16 January 2014 (has links)
This study is an exploration of the relationship between subjectivity and pedagogy in the secondary school English classroom in South Africa during a time that can be characterised as one of considerable social change. It examines the subject positions students take up in relation to a teaching intervention that invites them to historicise their identities. In so doing, it seeks to contribute to the growing body of education research on how to meaningfully engage young people in post-conflict societies with their recent past and their shifting present, with the primary aim being to understand how these students are positioning themselves in relation to the changing sociopolitical context. The research was conducted in two Grade 11 English classrooms, one a de(re)segregated former Model C school and the other an elite private school. The research design is a two-case case study, employing ethnographic tools to generate a multi-layered and multifaceted understanding of the students’ engagement in all its forms. Poststructuralist theories on discourse and subjectivity form the theoretical framework for this study, informing both the methodology and the data analysis. At the heart of this lies Foucault’s notion of the discursively constructed subject, extended through the work of Stuart Hall, Chris Weedon, Bronwyn Davies and others in ways that facilitate their application to individual subjectivity, particularly in relation to the classroom as a pedagogically structured discursive space. The data is subjected to poststructuralist discourse analysis, adjusted to suit the mode and type of data which includes, inter alia, the analysis of a multimodal artefact, analysis of performative classroom talk and moment-by-moment analysis of classroom interaction. The analysis shows that students’ subjectivities are not fixed but shift in ways that are contingent on the pedagogic context. Such shifts are particularly noticeable when there is a shift in the interactional situation; when students move between different semiotic modes; or when they are provided with the opportunity for extended conversational interaction around an issue. In addition, students’ participation in the section of work on South Africa’s Truth and Reconciliation Commission (TRC) shows that engaging with the past in post-apartheid South African classrooms can have unpredictable results. Students’ resistance to engaging with recent history seems to be related to discomfort with the ways in which the grand narrative of the past works to position them in racialised ways. While there is evidence of students seeking to ‘unfix’ racialised subject positions, it is also clear that past discourses linger. Despite their desire to be rid of the past, students’ subject positions are frequently tied to their historically constructed locations in the sociopolitical and economic landscape of South Africa. These ambiguities and contradictions are viewed in part as a function of the complexity of the relationship between subjectivity and pedagogy, where what students are able to say and who they are able to be is shaped by the discursive structure of the classroom space. Ultimately it would seem that more serious consideration needs to be given to ways of developing a pedagogy that is able to tolerate contingency and heterogeneity and that would have relevance not only in post-conflict contexts but also beyond. Keywords: subjectivity, pedagogy, poststructuralist discourse analysis, positioning, identity, English classroom, TRC, multimodal artefact, classroom talk, South Africa
32

Adapting Service Interfaces when Business Processes Evolve / Adapting Service Interfaces when Business Processes Evolve

Kudelas, Vladimír January 2012 (has links)
In the presented work, we study a derivation of an optimal communication XML schemas for a given conceptual model of a business process, complemented with a conceptual model of exchanged data and influence of a change in user requirements on derived XML schema. The work contains a review of important problems related to the topic. It also describes existing approaches of these problems. The work analyses a derivation of an optimal XML schema in detail. The approach presented in this thesis shows an ability to model exchanged data with a conceptual model of a business process. The thesis describes a solution, how to derive a concrete XML schema automaticly from a given conceptual model of exchanged data. Finally, the work contains a prototype implementation of the presented solution.
33

Information quality frames : an information product perspective and a socio-cognitive approach to perceiving quality of information in organisations

Eshraghian, Farjam January 2017 (has links)
There has been much advancement in the field of data and information quality (DIQ) since two decades ago. However, despite a large number of the theoretical and empirical studies in this field, there is a lack of understanding about the mechanisms and dynamics of forming, adjusting and changing organisational users’ (information consumers) assumptions and expectations based on which they perceive the quality of information required for making decision in order to perform a task within an organisational environment. Although it is already known that information consumers perceive the quality of information according to the requirements of the organisational task and the context of use, how the task requirements affect information consumers’ expectations of information quality has been a black-box in the body of literature. The main objective of this research is to contribute to the literature of DIQ by exploring the role of the setting of a task within an organisational context in the formation, development and change of information consumers’ underlying expectations of information quality. Information consumers’ assumptions and expectations are called information quality (IQ) frames by this research. Moreover, this research examines the role of IT artefacts, which are used to support performing the task, in these dynamics. As an organisational task is usually performed by a group, the role of the task group of which information consumers are members is investigated by this research. Having adopted a multi-case study design, this thesis has targeted seven different task groups in seven different organisations from multiple industries. This in-depth qualitative research also employs interviews as the main source of data and documents as the secondary source of data. The collected data and empirical evidence is analysed using the thematic analysis and pattern coding. This study’s theoretical contributions to the body of literature are as follows. Firstly, the findings indicate that information consumers should not be simply categorised into domain-specific experts or novices for understanding the mechanisms that affect their IQ frames. Regarding the domain of the task, an information consumer might have domain-related experience that differentiates him from both an expert and a novice. Moreover, this study found that the organisational-specific experience plays a significant role in these dynamics. Secondly, four different settings of a task within an organisational context have been recognised and the insights have been provided into the likely impact of each setting on IQ frames. The findings show that the setting of a task that affects IQ frames is enforced by the interplay between the degree of situatedness of the task and the degree of its explicitness. Thirdly, this research contends that the role of other members of a task group contributes directly to the setting of a task rather than directly influencing their colleague’s IQ frames. Fourthly, this thesis confirms that the organisational resource limitations and the time pressure, which were already mentioned in the literature, affect how information consumers perceive the quality of information but the empirical evidence reveals that other types of pressure such as the pressure of a competitive market has a similar role, therefore, it is argued that in general the organisational pressure impacts the way information consumers perceive information quality. However, this thesis argues that this influence is mediated by the setting of a task. In other words, the organisational pressure can increase the degree of situatedness of a task within an organisational context. Finally, the findings of this study indicate that information consumers’ interpretation of how an IT artefact enables a task within an organisational context is the key mechanism through which the IT artefact can participate in forming, adjusting or changing their IQ frames. The interpreted type of an IT artefact, its interpreted capabilities, the organisational intervention and the IT support by IT technicians of an organisations are the main four factors that govern the influence of the IT artefact on information consumers’ IQ frames. In addition, the computing environment in which the IT artefact operates in, information consumers’ level of IT knowledge and prior experience of using the IT artefact can be involved indirectly in these dynamics. The theoretical contributions of this research have led to the development of a framework for IQ frames and the underlying dynamics have been explained in detail. In addition to the theoretical contributions, this study has a number of practical implications for organisations and management regarding the importance of the organisational settings in how information quality is judged by organisational users (information consumers).
34

Material Synthesis: Negotiating experience with digital media

McLaren, Sasha January 2008 (has links)
Given the accessibility of media devices available to us today and utilising van Leeuwen's concept of inscription and synthesis as a guide, this thesis explores the practice of re-presenting a domestic material object, the Croxley Recipe Book, into digital media. Driven by a creative practice research method, but also utilising materiality, digital storytelling practices and modality as important conceptual frames, this project was fundamentally experimental in nature. A materiality-framed content analysis, interpreted through cultural analysis, initially unraveled some of the cookbook's significance and contextualised it within a particular time of New Zealand's cultural history. Through the expressive and anecdotal practice of digital storytelling the cookbook's significance was further negotiated, especially as the material book was engaged with through the affective and experiential digital medium of moving-image. A total of six digital film works were created on an accompanying DVD, each of which represents some of the cookbook's significance but approached through different representational strategies. The Croxley Recipe Book Archive Film and Pav. Bakin' with Mark are archival documentaries, while Pav is more expressive and aligned with the digital storytelling form. Spinning Yarns and Tall Tales, a film essay, engages and reflects with the multiple processes and trajectories of the project, while Extras and The Creative Process Journal demonstrate the emergent nature of the research. The written thesis discusses the emergent nature of the research process and justifies the conceptual underpinning of the research.
35

Matérialisations du souvenir en montagne : les enjeux identitaires des places et des placements

Petit, Emmanuelle 28 September 2012 (has links) (PDF)
Cette thèse s'intéresse à un ensemble d'objets qui matérialisent différents types de souvenirs au sein des Alpes Occidentales. L'originalité de ces artefacts réside dans leur nature même : ils figurent tous l'idée de montagne sous diverses formes et pour différents motifs. Il s'agit tout aussi bien de monuments érigés au détour d'une rue ou sur une place centrale pour commémorer un exploit, une catastrophe ou l'oeuvre d'un homme en relation avec la montagne, que de stèles funéraires, profilées à l'image de sommets, érigées ça et là dans les cimetières, ou encore de plaques scellées à même le roc de la montagne.A partir d'une réflexion sur le façonnement de ces artefacts qui jouent avec la figure de la montagne, cette recherche interroge le rôle de l'espace dans les processus mémoriels et identitaires. Elle propose une lecture interobjective par l'identification, la spatialisation et la généalogie des différentes manières de mettre en scène le souvenir. Elle aborde également à partir de récits produits dans deux contextes spécifiques (Bessansen Haute-Maurienne (Savoie), Chamonix en Haute-Arve (Haute-Savoie)), selon une approche intersubjective cette fois, les relations que les hommes nouent avec ces artefacts, qu'ils vivent quotidiennement au contact de ces derniers ou qu'ils les contemplent de manière tout à fait occasionnelle. Cette démarche et ce terrain permettent de dégager les enjeux identitaires de la mise en visibilité des souvenirs et de souligner le rôle de l'espace dans ces processus.Cette thèse défend l'idée que les artefacts sont centraux dans l'établissement des rapports sociaux. Ils participent à la construction des mondes de chacun et jouent un rôle actif dans les relations à soi et à l'autre autour d'un ensemble de jeux d'échelles et de métriques. Les artefacts du souvenir seraient donc à la fois un ferment et un révélateur du fonctionnement identitaire de la société. Cette thèse vise alors à montrer qu'à partir d'un tout petit objet, il est possible de saisir de nombreux enjeux du fonctionnement de la vie en société, qui s'expriment entre autres par la recherche, l'octroi, la tenue, la défense d'une place. C'est en cela une invitation au développement d'une micro-géographie attentive aux individus, à ce qu'ils disent, à ce qu'ils font, et à ce qui légitime leur place, celle qu'ils veulent tenir et celle qu'on leur fait tenir, à travers les rapports sociaux qui se nouent et se dénouent autour de ces artefacts.
36

Defining activity areas in the Early Neolithic site at Foeni-Salaş (southwest Romania): A spatial analytic approach with geographical information systems in archaeology

Lawson, Kathryn Sahara 20 September 2007 (has links)
Through the years, there has been a great deal of archaeological research focused on the earliest farming cultures of Europe (i.e. Early Neolithic). However, little effort has been expended to uncover the type and nature of daily activities performed within Early Neolithic dwellings, particularly in the Balkans. This thesis conducts a spatial analysis of the Early Neolithic pit house levels of the Foeni-Salaş site in southeast Romania, in the northern half of the Balkans, to determine the kinds and locations of activities that occurred in these pit houses. Characteristic Early Neolithic dwellings in the northern Balkans are pit houses. The data are analyzed using Geographic Information Systems (GIS) technology in an attempt to identify non-random patterns that will indicate how the pit house inhabitants used their space. Both visual and statistical (Nearest Neighbor) techniques are used to identify spatial patterns. Spreadsheet data are incorporated into the map database in order to compare and contrast the results from the two techniques of analysis. Map data provides precise artefact locations, while spreadsheet data yield more generalized quad centroid information. Unlike the mapped data, the spreadsheet data also included artefacts recovered in sieves. Utilizing both data types gave a more complexand fuller understanding of how space was used at Foeni-Salaş. The results show that different types of activity areas are present within each of the pit houses. Comparison of interior to exterior artifact distributions demonstrates that most activities take place within pit house. Some of the activities present include weaving, food preparation, butchering, hide processing, pottery making, ritual, and other activities related to the running of households. It was found that these activities are placed in specific locations relative to features within the pit house and the physical structure of the pit house itself. This research adds to the growing body of archaeological research that implements GIS to answer questions and solve problems related to the spatial dimension of human behaviour. / February 2008
37

Pedagogernas inställning till surfplattor : Surfplattan som verktyg för lärande inom förskolan

Göcmenoglu, Zahide January 2013 (has links)
We live in a society where the technology has an enormous role in our lives. The average age of using digital tools among Swedish people is down to a very young age. In the recent period of time there has been much debate about tablets and their use in preschools. The aim of this study is to examine the preschool teachers experiences and perceptions of tablet use and how the implementation of the tablets benefits the school activities. What is central to this research is not how kids use the tablet, but how educators are using the tablet device as supplement for children’s development. A qualitative method is used on this study in form of interviews. Results of the interviews showed that teacher who went on a further education in tablet use was more knowledgeable in tablet use then the teachers who didn’t went.
38

Defining activity areas in the Early Neolithic site at Foeni-Salaş (southwest Romania): A spatial analytic approach with geographical information systems in archaeology

Lawson, Kathryn Sahara 20 September 2007 (has links)
Through the years, there has been a great deal of archaeological research focused on the earliest farming cultures of Europe (i.e. Early Neolithic). However, little effort has been expended to uncover the type and nature of daily activities performed within Early Neolithic dwellings, particularly in the Balkans. This thesis conducts a spatial analysis of the Early Neolithic pit house levels of the Foeni-Salaş site in southeast Romania, in the northern half of the Balkans, to determine the kinds and locations of activities that occurred in these pit houses. Characteristic Early Neolithic dwellings in the northern Balkans are pit houses. The data are analyzed using Geographic Information Systems (GIS) technology in an attempt to identify non-random patterns that will indicate how the pit house inhabitants used their space. Both visual and statistical (Nearest Neighbor) techniques are used to identify spatial patterns. Spreadsheet data are incorporated into the map database in order to compare and contrast the results from the two techniques of analysis. Map data provides precise artefact locations, while spreadsheet data yield more generalized quad centroid information. Unlike the mapped data, the spreadsheet data also included artefacts recovered in sieves. Utilizing both data types gave a more complexand fuller understanding of how space was used at Foeni-Salaş. The results show that different types of activity areas are present within each of the pit houses. Comparison of interior to exterior artifact distributions demonstrates that most activities take place within pit house. Some of the activities present include weaving, food preparation, butchering, hide processing, pottery making, ritual, and other activities related to the running of households. It was found that these activities are placed in specific locations relative to features within the pit house and the physical structure of the pit house itself. This research adds to the growing body of archaeological research that implements GIS to answer questions and solve problems related to the spatial dimension of human behaviour.
39

An artefact to analyse unstructured document data stores / by André Romeo Botes

Botes, André Romeo January 2014 (has links)
Structured data stores have been the dominating technologies for the past few decades. Although dominating, structured data stores lack the functionality to handle the ‘Big Data’ phenomenon. A new technology has recently emerged which stores unstructured data and can handle the ‘Big Data’ phenomenon. This study describes the development of an artefact to aid in the analysis of NoSQL document data stores in terms of relational database model constructs. Design science research (DSR) is the methodology implemented in the study and it is used to assist in the understanding, design and development of the problem, artefact and solution. This study explores the existing literature on DSR, in addition to structured and unstructured data stores. The literature review formulates the descriptive and prescriptive knowledge used in the development of the artefact. The artefact is developed using a series of six activities derived from two DSR approaches. The problem domain is derived from the existing literature and a real application environment (RAE). The reviewed literature provided a general problem statement. A representative from NFM (the RAE) is interviewed for a situation analysis providing a specific problem statement. An objective is formulated for the development of the artefact and suggestions are made to address the problem domain, assisting the artefact’s objective. The artefact is designed and developed using the descriptive knowledge of structured and unstructured data stores, combined with prescriptive knowledge of algorithms, pseudo code, continuous design and object-oriented design. The artefact evolves through multiple design cycles into a final product that analyses document data stores in terms of relational database model constructs. The artefact is evaluated for acceptability and utility. This provides credibility and rigour to the research in the DSR paradigm. Acceptability is demonstrated through simulation and the utility is evaluated using a real application environment (RAE). A representative from NFM is interviewed for the evaluation of the artefact. Finally, the study is communicated by describing its findings, summarising the artefact and looking into future possibilities for research and application. / MSc (Computer Science), North-West University, Vaal Triangle Campus, 2014
40

Defining activity areas in the Early Neolithic site at Foeni-Salaş (southwest Romania): A spatial analytic approach with geographical information systems in archaeology

Lawson, Kathryn Sahara 20 September 2007 (has links)
Through the years, there has been a great deal of archaeological research focused on the earliest farming cultures of Europe (i.e. Early Neolithic). However, little effort has been expended to uncover the type and nature of daily activities performed within Early Neolithic dwellings, particularly in the Balkans. This thesis conducts a spatial analysis of the Early Neolithic pit house levels of the Foeni-Salaş site in southeast Romania, in the northern half of the Balkans, to determine the kinds and locations of activities that occurred in these pit houses. Characteristic Early Neolithic dwellings in the northern Balkans are pit houses. The data are analyzed using Geographic Information Systems (GIS) technology in an attempt to identify non-random patterns that will indicate how the pit house inhabitants used their space. Both visual and statistical (Nearest Neighbor) techniques are used to identify spatial patterns. Spreadsheet data are incorporated into the map database in order to compare and contrast the results from the two techniques of analysis. Map data provides precise artefact locations, while spreadsheet data yield more generalized quad centroid information. Unlike the mapped data, the spreadsheet data also included artefacts recovered in sieves. Utilizing both data types gave a more complexand fuller understanding of how space was used at Foeni-Salaş. The results show that different types of activity areas are present within each of the pit houses. Comparison of interior to exterior artifact distributions demonstrates that most activities take place within pit house. Some of the activities present include weaving, food preparation, butchering, hide processing, pottery making, ritual, and other activities related to the running of households. It was found that these activities are placed in specific locations relative to features within the pit house and the physical structure of the pit house itself. This research adds to the growing body of archaeological research that implements GIS to answer questions and solve problems related to the spatial dimension of human behaviour.

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