Academic literature on the topic 'Visualisation study'

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Journal articles on the topic "Visualisation study"

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Donohoe, David, and Eamon Costello. "Data Visualisation Literacy in Higher Education: An Exploratory Study of Understanding of a Learning Dashboard Tool." International Journal of Emerging Technologies in Learning (iJET) 15, no. 17 (September 11, 2020): 115. http://dx.doi.org/10.3991/ijet.v15i17.15041.

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The visualisation of data has become ubiquitous. Visualisations are used to represent data in a way that is easy to understand and useful in our lives. Each data visualisation needs to be suitable to extract the correct information to complete a task and make an informed decision while minimising the impact of biases. To achieve this, the ability to create and read visualisations has become as important as the ability to read and write. Therefore, the Information Visualisation community is applying more attention to literacy and decision making in data vis-ualisations. Until recently, researchers lacked valid and reliable test in-struments to measure the literacy of users or the taxonomy to detect biased judgement in data visualisations. A literature review showed there is relatively little research on data visualisations for different user data literacy levels in authentic settings and a lack of studies that pro-vide evidence for the presence of cognitive biases in data visualisa-tions. This exploratory research study was undertaken to develop a method to assess perceived usefulness and confidence in reporting dashboards within higher education by adapting existing research in-struments. A survey was designed to test perceived usefulness, per-ceived skill and 24 multiple-choice test items covering six data visuali-sations based on eight tasks. The study was sent to 157 potential par-ticipants, with a response rate of 20.38%. The results showed data vis-ualisations are useful, but the purpose of some data visualisations is not always understood. Also, we showed there is a consensus that re-spondents perceive their data visualisation literacy is higher than they believe their peers to be. However, the higher their overconfidence, the lower their actual data visualisation literacy score. Finally, we discuss the benefits, limitations and possible future research areas.
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Idrissov, Agzam, Simon Rapp, Albert Albers, and Anja M. Maier. "DEVELOPING SYSTEMS VISUALISATIONS IN DESIGN THROUGH A TYPOLOGY OF VISUAL TASKS: A MECHATRONIC CASE." Proceedings of the Design Society 1 (July 27, 2021): 1213–22. http://dx.doi.org/10.1017/pds.2021.121.

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AbstractVisual representations are essential to design. Data-rich representations such as systems visualisations are gaining prominence in engineering practice. However, as such visualisations are often developed ad-hoc, we propose more systematically to link visual tasks with design-specific tasks for which the visualisations are used. Whereas research on such linking focuses mostly on CAD models and sketches, no such studies are yet available for systems visualisations. Thus, this paper introduces a typology of visual tasks from the Information Visualisation field to aid the development of systems visualisations in design. To build a visualisation using the typology, a case study with engineering students developing an autonomous robot was conducted. Through interviews and analysis of product representations used, design-specific tasks were identified and decomposed into visual tasks. Then, a visualisation that assisted the team in performing their design activities was created. Results illustrate the benefits of using such a typology to describe visual tasks and generate systems visualisations. The study suggests implications for researchers studying visual representations in design as well as for developers of systems visualisations.
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Sibolla, B. H., T. Van Zyl, and S. Coetzee. "TOWARDS THE DEVELOPMENT OF A TAXONOMY FOR VISUALISATION OF STREAMED GEOSPATIAL DATA." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-2 (June 2, 2016): 129–36. http://dx.doi.org/10.5194/isprsannals-iii-2-129-2016.

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Geospatial data has very specific characteristics that need to be carefully captured in its visualisation, in order for the user and the viewer to gain knowledge from it. The science of visualisation has gained much traction over the last decade as a response to various visualisation challenges. During the development of an open source based, dynamic two-dimensional visualisation library, that caters for geospatial streaming data, it was found necessary to conduct a review of existing geospatial visualisation taxonomies. The review was done in order to inform the design phase of the library development, such that either an existing taxonomy can be adopted or extended to fit the needs at hand. The major challenge in this case is to develop dynamic two dimensional visualisations that enable human interaction in order to assist the user to understand the data streams that are continuously being updated. This paper reviews the existing geospatial data visualisation taxonomies that have been developed over the years. Based on the review, an adopted taxonomy for visualisation of geospatial streaming data is presented. Example applications of this taxonomy are also provided. The adopted taxonomy will then be used to develop the information model for the visualisation library in a further study.
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Sibolla, B. H., T. Van Zyl, and S. Coetzee. "TOWARDS THE DEVELOPMENT OF A TAXONOMY FOR VISUALISATION OF STREAMED GEOSPATIAL DATA." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-2 (June 2, 2016): 129–36. http://dx.doi.org/10.5194/isprs-annals-iii-2-129-2016.

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Geospatial data has very specific characteristics that need to be carefully captured in its visualisation, in order for the user and the viewer to gain knowledge from it. The science of visualisation has gained much traction over the last decade as a response to various visualisation challenges. During the development of an open source based, dynamic two-dimensional visualisation library, that caters for geospatial streaming data, it was found necessary to conduct a review of existing geospatial visualisation taxonomies. The review was done in order to inform the design phase of the library development, such that either an existing taxonomy can be adopted or extended to fit the needs at hand. The major challenge in this case is to develop dynamic two dimensional visualisations that enable human interaction in order to assist the user to understand the data streams that are continuously being updated. This paper reviews the existing geospatial data visualisation taxonomies that have been developed over the years. Based on the review, an adopted taxonomy for visualisation of geospatial streaming data is presented. Example applications of this taxonomy are also provided. The adopted taxonomy will then be used to develop the information model for the visualisation library in a further study.
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Kehl, C., R. P. B. Fischer, and E. van Sebille. "PRACTICES, PITFALLS AND GUIDELINES IN VISUALISING LAGRANGIAN OCEAN ANALYSES." ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences V-4-2021 (June 17, 2021): 217–24. http://dx.doi.org/10.5194/isprs-annals-v-4-2021-217-2021.

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Abstract. The Lagrangian analysis of particulate matter, biota and drifters, which are dispersed by turbulent fluid currents, is a cornerstone of oceanographic studies, covering diverse study objectives. The results of Lagrangian simulations and observations is predominantly visualised by means of easy-access plotting interfaces and simple presentation techniques. We analysed over 50 publications from the years 2010–2020 with respect to their visual design to deduce common visualisation practices in the domain. Individual figures are analysed towards adherence to visualisation best-practices, algebraic visualisation guidelines and the IPCC visual style guide. In this article, we present the resulting best-practices and common pitfalls in the design of Lagrangian ocean visualisations. Based on this visual study, we highlight that raising awareness of established visual guidelines may have a higher impact on improving the visual quality of publications in oceanography than the vigorous development of more general-purpose visualisation tools.
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Laing, Richard, Anne-Marie Davies, David Miller, Anna Conniff, Stephen Scott, and Jane Morrice. "The Application of Visual Environmental Economics in the Study of Public Preference and Urban Greenspace." Environment and Planning B: Planning and Design 36, no. 2 (January 1, 2009): 355–75. http://dx.doi.org/10.1068/b33140.

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Urban greenspace has consistently been argued to be of great importance to the wellbeing, health, and daily lives of residents and users. This paper reports results from a study that combined the visualisation of public results from a study that combined the visualisation of public greenspace with environmental economics, and that aimed to develop a method by which realistic computer models of sites could be used within preference studies. As part of a methodology that employed contingent rating to establish the values placed on specific greenspace sites, three-dimensional computer models were used to produce visualisations of particular environmental conditions. Of particular importance to the study was the influence of variables including lighting, season, time of day, and weather on the perception of respondents. This study followed previous work that established a suitable approach to the modelling and testing of entirely moveable physical variables within the built environment. As such, the study has established firmly that computer-generated visualisations are appropriate for use within environmental economic surveys, and that there is potential for a holistic range of attributes to be included in such studies.
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Bayliss, Richard. "ARCHAEOLOGICAL SURVEY AND VISUALISATION: THE VIEW FROM BYZANTIUM." Late Antique Archaeology 1, no. 1 (2003): 26–313. http://dx.doi.org/10.1163/22134522-90000012.

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This paper will explore the relationship between the methodologies used in archaeology for recording buildings and landscapes and the development of computer visualisation technology, with specific reference to late antique and Byzantine archaeology. The principal aim is to highlight the applicability of visualisation technologies as the critical solutions to the presentation and investigation of survey data and reciprocally to demonstrate that meaningful computer visualisations benefit from a secure underpinning of archaeological survey data. My intention is to show that computer visualisation should not be seen solely as a vehicle for archaeological reconstruction but rather can be viewed as an integral part of the process of interpretation. The first of two case studies is the Anastasian Wall Project, a survey of a massive linear fortification in Turkish Thrace, which presented a series of practical problems both in terms of data capture and representation. The applicability of computer-based techniques for the integration and visualisation of various forms of survey data will be further investigated through the study of the Alacami, a multi-period Byzantine church in Cilicia, before some final comment is made on the current and potential roles of computer visualisation in Byzantine archaeology.
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Bravo, A., and A. M. Maier. "IMMERSIVE VISUALISATIONS IN DESIGN: USING AUGMENTED REALITY (AR) FOR INFORMATION PRESENTATION." Proceedings of the Design Society: DESIGN Conference 1 (May 2020): 1215–24. http://dx.doi.org/10.1017/dsd.2020.33.

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AbstractImmersive visualisations introduce new possibilities for experiencing design, and as such for presenting information. To date, studies in design have focused mostly on immersive visualisations supporting product decisions. However, little attention has been paid to information presentation, e.g. in design reviews, for decisions in the boardroom, and/or for client presentations. This study with industry practitioners identifies information presentation practices and challenges, develops an immersive visualisation prototype, and explores opportunities for the use of immersive visualisations.
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Alcíbar, Miguel. "Information visualisation as a resource for popularising the technical-biomedical aspects of the last Ebola virus epidemic: The case of the Spanish reference press." Public Understanding of Science 27, no. 3 (April 10, 2017): 365–81. http://dx.doi.org/10.1177/0963662517702047.

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This study explores the role that information visualisation played in the popularisation of the technical-biomedical aspects of the last Ebola virus epidemic, the most devastating to date. Applying content analysis methods, the total population of information visualisations ( N = 209) was coded and analysed to identify topics, and to define features and identify patterns in the images. The corpus was based on the record of articles with graphics appearing in five Spanish reference newspapers from 22 March 2014 to 13 January 2016, the start and suppression of the epidemic, respectively. The results suggest that information visualisation was a key factor in the popularisation of the epidemic’s technical-biomedical aspects, as well as contributing actively to construct, in the words of Myers, a narrative of nature.
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Ślusarski, Marek, and Magdalena Jurkiewicz. "Visualisation of Spatial Data Uncertainty. A Case Study of a Database of Topographic Objects." ISPRS International Journal of Geo-Information 9, no. 1 (December 31, 2019): 16. http://dx.doi.org/10.3390/ijgi9010016.

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The Database of Topographic Objects (DTO) is the official database of Poland for collecting and providing spatial data with the detail level of a topographic map. Polish national DTOs manage information about the spatial location and attribute values of geographic objects. Data in the DTO are the starting point for geographic information systems (GISs) for various central and local governments as well as private institutions. Every set of spatial data based on measurement-derived data is susceptible to uncertainty. Therefore, the widespread awareness of data uncertainty is of vital importance to all GIS users. Cartographic visualisation techniques are an effective approach to informing spatial dataset users about the uncertainty of the data. The objective of the research was to define a set of methods for visualising the DTO data uncertainty using expert know-how and experience. This set contains visualisation techniques for presenting three types of uncertainty: positional, attribute, and temporal. The positional uncertainty for point objects was presented using visual variables, object fill with hue colour and lightness, and glyphs placed at map symbol positions. The positional uncertainty for linear objects was presented using linear object contours made of dotted lines and glyphs at vertices. Fill grain density and contour crispness were employed to represent the positional uncertainty for surface objects. The attribute value uncertainty and the temporal uncertainty were represented using fill grain density and fill colour value. The proposed set of the DTO uncertainty visualisation methods provides a finite array of visualisation techniques that can be tested and juxtaposed. The visualisation methods were comprehensively evaluated in a survey among experts who use spatial databases. Results of user preference analysis have demonstrated that the set of the DTO data uncertainty visualisation techniques may be applied to the full extent. The future implementation of the proposed visualisation methods in GIS databases will help data users interpret values correctly.
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Dissertations / Theses on the topic "Visualisation study"

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Emerson, Jessica Merrill Thurston. "Tag clouds in software visualisation." Thesis, University of Canterbury. Computer Science and Software Engineering, 2014. http://hdl.handle.net/10092/10120.

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Developing and maintaining software is a difficult task, and finding effective methods of understanding software is more necessary now than ever with the last few decades seeing a dramatic climb in the scale of software. Appropriate visualisations may enable greater understanding of the datasets we deal with in software engineering. As an aid for sense-making, visualisation is widely used in daily life (through graphics such as weather maps and road signs), as well as in other research domains, and is thought to be exceedingly beneficial. Unfortunately, there has not been widespread use of the multitude of techniques which have proposed for the software engineering domain. Tag clouds are a simple, text-based visualisation commonly found on the internet. Typically, implementations of tag clouds have not included rich interactive features which are necessary for data exploration. In this thesis, I introduce design considerations and a task set for enabling interaction in a tag cloud visualisation system. These considerations are based on an analysis of challenges in visualising software engineering data, and the perceptive influences of visual properties available in tag clouds. The design and implementation of interactive system Taggle based on these considerations is also presented, along with its broad-based evaluation. Evaluation approaches were informed by a systematic mapping study of previous tag cloud evaluation, providing an overview of existing research in the domain. The design of Taggle was improved following a heuristic evaluation by domain experts. Subsequent evaluations were divided into two parts - experiments focused on the tag cloud visualisation technique itself, and a task-based approach focused on the whole interactive system. As evidenced in the series of evaluative studies, the enhanced tag cloud features incorporated into Taggle enabled faster visual search response time, and the system could be used with minimal training to discover relevant information about an unknown software engineering dataset.
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Anderson, Jonathan. "Visualisation of data from IoT systems : A case study of a prototyping tool for data visualisations." Thesis, Linköpings universitet, Programvara och system, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138723.

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The client in this study, Attentec, has seen an increase in the demand for services connected to Internet of things systems. This study is therefore examining if there is a tool that can be a used to build fast prototype visualisations of data from IoT systems to use as a tool in their daily work. The study started with an initial phase with two parts. The first part was to get better knowledge of Attentec and derive requirements for the tool and the second part was a comparison of prototyping tools for aiding in development of data visualisations. Apache Zeppelin was chosen as the most versatile and suitable tool matching the criteria defined together with Attentec. Following the initial phase a pre-study containing interviews to collect empirical data on how visualisations and IoT projects had been implemented previously at Attentec were performed. This lead to the conclusion that geospatial data and NoSQL databases were common for IoT projects. A technical investigation was conducted on Apache Zeppelin to answer if there were any limits in using the tool for characteristics common in IoT system. This investigation lead to the conclusion that there was no support for plotting data on a map. The first implementation phase implemented support for geospatial data by adding a visualisation plug-in that plotted data on a map. The implementation phase was followed by an evaluation phase in which 5 participants performed tasks with Apache Zeppelin to evaluate the perceived usability of the tool. The evaluation was performed using a System Usability Scale and a Summed Usability Metric as well as interviews with the participants to find where improvements could be made. From the evaluation three main problems were discovered, the import and mapping of data, more feature on the map visualisation plug-in and the creation of database queries. The first two were chosen for the second iteration where a script for generating the code to import data was developed as well as improvements to the geospatial visualisation plug-in. A second evaluation was performed after the changes were made using similar tasks as in the first to see if the usability was improved between the two evaluations. The results of the Summed Usability Metric improved on all tasks and the System Usability Scale showed no significant change. In the interviews with the participants they all responded that the perceived usability had improved between the two evaluations suggesting some improvement.
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Samson, Duncan Alistair. "The heuristic significance of enacted visualisation." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1003434.

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This study is centred on an analysis of pupils' lived experience while engaged in the generalisation of linear sequences/progressions presented in a pictorial context. The study is oriented within the conceptual framework of qualitative research, and is anchored within an interpretive paradigm. A case study methodological strategy was adopted, the research participants being the members of a mixed gender, high ability Grade 9 class of 23 pupils at an independent school in South Africa. The analytical framework is structured around a combination of complementary multiple perspectives provided by three theoretical ideas, enactivism, figural apprehension, and knowledge objectification. An important aspect of this analytical framework is the sensitivity it shows to the visual, phenomenological and semiotic aspects of figural pattern generalisation. It is the central thesis of this study that the combined complementary multiple perspectives of enactivism, figural apprehension and knowledge objectification provide a powerful depth of analysis to the exploration of the inter-relationship between the embodied processes of pattern generalisation and the visualisation of pictorial cues. The richly textured tapestry of activity captured through a multi-systemic semiotic analysis of participants' generalisation activity stands testament to this central thesis. Insights gleaned from this study are presented as practical strategies which support and encourage a multiple representational approach to pattern generalisation in the pedagogical context of the classroom.
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Rozendaal, Ross. "Interactive visualisation using 3D graphics : an archaeological case study." Master's thesis, University of Cape Town, 2000. http://hdl.handle.net/11427/4980.

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Bibliography: leaves 82-84.
The methods of displaying data from archaeological surveys are of considerable importance in representing realistic impressions of archaeological sites that few people are able to visit. In many cases, further study of a site is not possible at the location of the site. This would require that the surveyed data of the site be displayed in such a way as to be accurate and realistic as well as including interactive tools, enabling further studies. Traditional displays of archaeological data have been either in textual form or in the conventional hardcopy form of maps and drawings. With the advent of computers and computer graphics alternative methods of displaying the data have become possible. 3D graphics have become an important method of displaying archaeological data. In 1995 and 1996 the Department of Geomatics at the University of Cape Town participated in the survey of the 3.6 million year old hominid footprints in Tanzania. The survey was required for the documentation and study of the footprints. In order to facilitate this in 3D graphics, software packages that allowed user interactive tools to be included in the display had to be investigated. Methods of displaying the data also had to be investigated. Java3D was selected to create the 3D models and user interactive tools that included measurement tools, gradient tools and profile tools. These tools were created for the Laetoli footprints but were applicable in other archaeological displays as well.
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Beattie, Robert. "The creative entrepreneur : a study of the entrepreneur's creative processes." Thesis, Abertay University, 1999. https://rke.abertay.ac.uk/en/studentTheses/9dfc2bf2-fb0e-4609-9c13-a35fce053cbc.

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The aim of the research was to increase the understanding of how the entrepreneur’s process of creativity began and evolved by determining how ideas and opportunities were discovered, recognised and harnessed prior to the advent of entrepreneurship. There appeared to be a shortage of appropriate research studies into the entrepreneur’s creative processes, describing how it began and evolved over time. There also appeared to be few studies that attempted to describe how entrepreneurs discovered their ideas, harnessed them, and converted them into opportunities. It would seem that the majority of the empirical research studies on the subject have focused upon managers and founders of companies compared to studies involving nascent entrepreneurs and entrepreneurs. The objective of the research study was to provide a new synthesis of the research literature in order to create a framework that described the key cognitive processes and personal attributes that were involved in the entrepreneurs’ search and evolution of their ideas. The content and elements of the framework were then compared with the context of the entrepreneurs’ personal histories in order that generic themes could be identified. After a period of one year, further interviews were held with the entrepreneurs in order to monitor any changes to the processes involved. The research began with a review of existing literature relating to the entrepreneur and entrepreneurship. A selective review of the historical research literature on the entrepreneur was followed by an appraisal of some of the entrepreneurs’ attitudes and behaviour patterns. This provided a thumbnail sketch of each entrepreneur, his or her origins, and what he or she did. This was followed by a description of what might be construed as a typical nascent entrepreneur. This description detailed the process from the ‘learning phase’ to the ‘triggering event’ that caused such a dramatic change in his or her career path, i.e. the critical incident that set off a mental chain reaction within the nascent entrepreneur that led to the establishment of his or her entrepreneurial intentions. A review of the research literature concerning the focal theory of the research objectives led to an in-depth appraisal of what is meant by ‘creativity’ and ‘cognitive processes’. The difficulties of researching such subjective actions are shared by previous research literature. The creative variables were then brought together in a number of phases contained in the discovery and evolution processes. The process was then followed through the discovery phase, stressing the importance of the prepared mind to the birth of the idea. The various thinking and analytical processes involved in the evolution of an idea into an opportunity were discussed in the context of an entrepreneur’s core attributes and beliefs. The focal theory review concluded with a framework of the elements appertaining to the research objectives that had been derived from the research literature. The structure and elements of the framework were then compared with the relevant data from the field research study. A number of research questions arose from the key issues raised in the research literature. These concerned, having a prepared mind, happenstance, intuition, self-belief, values, visualisation and goal setting. The sample of the population chosen for the research study comprised fifty Scottish entrepreneurs of both sexes and varying sizes of company, ages of business, turnover and number of employees. The companies with whom entrepreneurs were involved covered various industries and activities. Following the guidance obtained from the research literature, in-depth interviews were carried out. A number of the entrepreneurs interviewed were subjected to a follow-up meeting after one year, in order to monitor any further developments and changes to the themes identified from the first interviews, and to provide the research with a further means of validation. An opportunity was taken at the meeting to share with the entrepreneurs the preliminary findings arising from the previous interviews. The interviews were tape-recorded, transcribed, and data was computerised. The data was then subjected to content analysis, as was the secondary information obtained from publications, newspaper articles and other case studies. The research findings identified many generic themes among the entrepreneurs, particularly in the area described as the discovery and evolution phases of the creative process. A high percentage of entrepreneurs also had beliefs and attitudes that were similar to their business philosophy. The findings supported a number of theories that have been outlined previously in the research literature, as well as confirming many of the traits, characteristics and behaviours attributed to being entrepreneurial. The findings of the research confirmed that many of the entrepreneurial ideas occurred serendipitously, and the use of visualisation and rehearsal techniques was considered by many to be invaluable in the creative process. Goal setting also appeared to provide essential stepping stones to the monitoring and attainment of many successful outcomes, particularly in the evolution stage. The structure and elements of the framework of the process of creation appeared to be well supported by the majority of the entrepreneurs interviewed. Recommendations are made as to how the adoption of some of the research findings could assist in the encouragement and advancement of an enterprise learning culture, and the establishment of a ‘can-do’ attitude towards enterprise creation.
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Martínez-García, Elvira. "Experimental and numerical study on the thermo hydraulic behaviour in a wavy plate heat exchanger using Newtonian and non Newtonian fluids." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271803.

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Mabakane, Mabule Samuel. "Effective visualisation of callgraphs for optimisation of parallel programs: a design study." Thesis, Faculty of Science, 2019. http://pubs.cs.uct.ac.za/archive/00001309/.

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Parallel programs are increasingly used to perform scientific calculations on supercomputers. Optimising parallel applications to scale well, and ensuring maximum parallelisation, is a challenging task. The performance of parallel programs is affected by a range of factors, such as limited network bandwidth, parallel algorithms, memory latency and the speed of the processors. The term “performance bottlenecks” refers to obstacles that cause slow execution of the parallel programs. Visualisation tools are used to identify performance bottlenecks of parallel applications in an attempt to optimize the execution of the programs and fully utilise the available computational resources. TAU (Tuning and Analysis Utilities) callgraph visualisation is one such tool commonly used to analyse the performance of parallel programs. The callgraph visualisation shows the relationship between different parts (for example, routines, subroutines, modules and functions) of the parallel program executed during the run. TAU’s callgraph tool has limitations: it does not have the ability to effectively display large performance data (metrics) generated during the execution of the parallel program, and the relationship between different parts of the program executed during the run can be hard to see. The aim of this work is to design an effective callgraph visualisation that enables users to efficiently identify performance bottlenecks incurred during the execution of a parallel program. This design study employs a user-centred iterative methodology to develop a new callgraph visualisation, involving expert users in the three developmental stages of the system: these design stages develop prototypes of increasing fidelity, from a paper prototype to high fidelity interactive prototypes in the final design. The paper-based prototype of a new callgraph visualisation was evaluated by a single expert from the University of Oregon’s Performance Research Lab, which developed the original callgraph visualisation tool. This expert is a computer scientist who holds doctoral degree in computer and information science from University of Oregon and is the head of the University of Oregon’s Performance Research Lab. The interactive prototype (first high fidelity design) was evaluated against the original TAU callgraph system by a team of expert users, comprising doctoral graduates and undergraduate computer scientists from the University of Tennessee, United States of America (USA). The final complete prototype (second high fidelity design) of the callgraph visualisation was developed with the D3.js JavaScript library and evaluated by users (doctoral graduates and undergraduate computer science students) from the University of Tennessee, USA. Most of these users have between 3 and 20 years of experience in High Performance Computing (HPC). On the other hand, an expert has more than 20 years of experience in development of visualisation tools used to analyse the performance of parallel programs. The expert and users were chosen to test new callgraphs against original callgraphs because they have experience in analysing, debugging, parallelising, optimising and developing parallel programs. After evaluations, the final visualisation design of the callgraphs was found to be effective, interactive, informative and easy-to-use. It is anticipated that the final design of the callgraph visualisation will help parallel computing users to effectively identify performance bottlenecks within parallel programs, and enable full utilisation of computational resources within a supercomputer.
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Tshithigona, Gaus. "An investigation into teaching mathematics using a visualisation approach to recontextualise indigenous knowledge." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/62461.

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It can be argued that the Namibian curriculum is largely influenced by a Western epistemology. However, many studies suggest that learners make powerful meanings of mathematical concepts they are learning if they visualise these and experience them in relation to what they already know from their own cultural backgrounds. According to the Namibian National Curriculum for Basic Education (NNCBE, 2010), it is not only important for learners to acquire mathematical knowledge and skills, but also to develop and grow their identities, cultures and values as individuals. The aim of this study was to explore and investigate how selected mathematics teachers employ visualisation as a teaching approach to re-contextualise indigenous knowledge (IK). The study set out to explore how conceptual understanding is enhanced by participation in an intervention programme. The use of visualisation is considered an important mediating and pedagogical tool in the mathematics classroom to enhance the mathematics learning of learners. The research is informed by a socio-cultural theory of learning and is located within an interpretive paradigm. The study was conducted at four schools in the Oshana region of Namibia and involved four mathematics teachers who were purposefully selected due to their willingness to use visualisation-IK approaches in their teaching, based on their responses to the survey. The methodologies used are qualitative and quantitative case study. To gather data, document analysis, a survey, lesson observations and focus group interviews were used. The study found that most teachers in the Oshana region have an understanding of the effective use of visualisation-IK approaches. However, the study revealed that visualisation- IK approaches are mostly used in grades 4 to 7 mathematics classrooms. It also discovered that most of the visualisation approaches that teachers employed aligned well with the curriculum and promoted conceptual understanding in the teaching of mathematics. The results of the study showed that teachers have experience of the enabling and constraining factors in using a visualisation-IK approach to teaching mathematics.
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Runge, Katharina. "Visualisation de fluxoides dans des réseaux 2D artificiels supraconducteurs." Phd thesis, Grenoble 1, 1993. http://tel.archives-ouvertes.fr/tel-00356016.

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Nous avons mis au point une cellule de décoration, permettant de décorer les vortex à basse température (jusqu'à 1.6K) sous faible champ magnétique (jusqu'à 0.2mT). La méthode est basée sur l'interaction des gradients de champs dus aux vortex avec des particules ferromagnétiques fabriquées in-situ dans un gaz résiduel. Après réchauffement, l'observation des amas de nickel se fait sous le microscope électronique à balayage. Les échantillons étudiés sont des réseaux 2D submicroniques de fils en niobium (pas du réseau 1-2 µm, largeur des fils 0.3 µm, épaisseur 0.2 µm) avec d'excellentes propriétés supraconductrices (température de transition 9.0K, RRR d'environ 30). Notre calcul de profil de champ magnétique au-dessus d'un réseau montre que le contraste entre cellules avec ou sans vortex est extrêmement faible. Suivant la hauteur au dessus du réseau, nous décorons soit les courants soit les milieux de cellules. La décoration se fait donc sur des réseaux planarisés, à des températures T<
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Johansson, Sofia. "Usability through visualisation : A case study of ISO 26262 at Scania R&D." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217842.

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The average person today is more informed compared to the most informed people 25 years ago, however, he or she knows a lower percentage of all available information than those in the 80’s. In today’s society, information is flowing everywhere and through all mediums. Research shows that this constantly accessible information is hampering our daily work– if not presented in an accessible way. This thesis has investigated this particular issue with ISO 26262 as case. ISO 26262 is a standard concerning the safety within E/E –systems and is currently being adopted at Scania. However, the users think the standard, which is originally presented in a pdf document, is both time –and resource inefficient, and also the content of ISO 26262 is presented in such manner that it can be interpreted in multiple ways, and is experienced as a “wall of text”. By carrying out several user interactions, it was discovered that the most critical issue for the users was looking for information and that the standard would be more user friendly if presented in a website. Adjustments of the text and layout within the standard were made based on the conducted literature study, such as a stronger hierarchy of the content, spacing and construction of sections. The approach of the project was based on service design, in order to maintain focus on the user and usage, which during the user interactions were discovered to be the two main areas that had to be investigated, problematised and solved. The user and usage areas were therefore iteratively implemented through all four stages of the approach; exploration, creation, reflection and implementation, which led the final result of a website and its construction, links and layout. The assumed most critical parts of the final website were implemented in order to ensure a fulfilment of the main criteria generated from the user interactions. However, if more time had been available, the website could have been user tested once more, in order to find further critical aspects and ensure their fulfilment.
Genomsnittspersonen är idag mer informerad jämfört med de mest informerade personerna 25 år sedan, men trots det så vet han eller hon en lägre andel av all tillgänglig information, jämfört med de mest informerade på 1980-talet. I dagens samhälle flödar information överallt och genom alla typer av medium. Forskning visar att detta ständiga informationsflöde kan störa oss i vårt dagliga arbete – om den inte presenteras för oss på ett tillgängligt sätt. Denna uppsats har undersökt just detta problem, med ISO 26262 som fallstudie. ISO 26262 är en standard som behandlar säkerheten i E/E –system, som för tillfället är under tillämpning av anställda hos Scania. De anställda tycker dock att standarden, som tillgängliggörs i ett pdf dokument, är för tids- och resurskrävande. Innehållet i ISO 26262 är också presenterat på ett sätt som gör standarden öppen för olika tolkningar, och de anställda upplever dokumentet som en ”vägg av text”. I detta projekt har flera användarundersökningar genomförts, och under dessa fastställdes det mest kritiska momentet för användarna till att leta upp information i standarden, och för att göra ISO 26262 mer användarvänligt föredrogs en hemsida. Ändringar i texten har gjorts, med grund i den litteraturstudie som genomförts, där till exempel hierarkin i texten har förstärkts, mellanrum har anpassats och upplägget av kapitel och delkapitel har ändrats. Arbetssättet under projektet har grundats i tjänstedesign, för att bibehålla fokus på användare och användning, vilka genom användarundersökningarna upptäcktes vara de två huvudområdena att vidare undersöka. Dessa två områden arbetades igenom på ett iterativt sätt, inkluderande dom fyra huvudstegen; utforskning, skapning, reflektering och implementation, vilket resulterade i konstruktionen av en hemsida samt dess layout. Den slutgiltiga hemsidan antas uppfylla de huvudkriterierna som upptäcktes under användarundersökningar, men om mer tid hade funnits så kunde hemsidan ha blivit användartestats en gång till, och på så vis säkerställa att alla kritiska aspekter upptäckts och åtgärdats.
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Books on the topic "Visualisation study"

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Thompson, D. H. A visualisation study of the vortex flow around double-delta wings. Melbourne, Vic: Aeronautical Research Laboratories, 1985.

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Thorogood, Margery. Does seeing number make a difference?: A study of visualisation approaches for teaching young children. London: University of Surrey Roehampton, 2002.

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Dennis, Anne. The articulate body: The physical training of the actor. New York: Drama Book, 1994.

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The changing image of the city: A study of the transformation of the townscape using Computer-Aided Architectural Design and visualization techniques : a case study, Heusden = De transformatie van het stadsbeeld : onderzoek naar de verandering van het stadsbeeld met behulp van Computer-Aided Architectural Design en visualisatie technieken : een voorbeeldproject, Heusden. [Leiden?]: Canaletto, 1993.

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Brunsdon, Chris. A study of visualisation of crime incidence mapping by police officers. Northern Regional Research Laboratory, 1987.

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Murray, Stuart. Disability and the Posthuman. Liverpool University Press, 2020. http://dx.doi.org/10.3828/liverpool/9781789621648.001.0001.

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Disability and the Posthuman is the first study to analyse cultural representations and deployments of disability as they interact with posthumanist theories of technology and embodiment. Working across a wide range of texts, many new to critical enquiry, in contemporary writing, film and cultural practice from North America, Europe, the Middle East and Japan, it covers a diverse range of topics, including: contemporary cultural theory and aesthetics; design, engineering and gender; the visualisation of prosthetic technologies in the representation of war and conflict; and depictions of work, time and sleep. While noting the potential limitations of posthumanist assessments of the technologized body, the study argues that there are exciting, productive possibilities and subversive potentials in the dialogue between disability and posthumanism as they generate dissident crossings of cultural spaces. Such intersections cover both fictional/imagined and material/grounded examples of disability and look to a future in which the development of technology and complex embodiment of disability presence align to produce sustainable yet radical creative and critical voices.
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The Articulate Body. Nick Hern Books, 2002.

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Dennis, Anne. The Articulate Body: The Physical Training of the Actor. Drama Publishers, 1995.

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Book chapters on the topic "Visualisation study"

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Nowostawski, Mariusz, and Julian Münster. "A Virtual Spatiotemporal Annotation System: The Virtual Stickies Mobile Augmented Reality Study." In Geospatial Visualisation, 159–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-12289-7_8.

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Gogoaşe Nistoran, Daniela Elena, Diana A. Gheorghe Popovici, Brînduşa Ana Craia Savin, and Iuliana Armaş. "GIS for Dam-Break Flooding. Study Area: Bicaz-Izvorul Muntelui (Romania)." In Space and Time Visualisation, 253–80. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24942-1_15.

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Petrişor, Alexandru-Ionuţ. "Geographical Information Systems as Environmental, Landscape, and Urban Planning and Research Tools. Romania as a Case Study." In Space and Time Visualisation, 233–49. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24942-1_14.

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Crăciun, Cerasella. "The Natural, Anthropogenic, and Cultural Landscape Between Space and Time. Case Study: The Lost Gardens of Bucharest." In Space and Time Visualisation, 19–34. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24942-1_2.

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Partheepan, Kulasegaram, Shukla Acharjee, Selvarajah Thayanath, and Beniamino Murgante. "A Remote Sensing and Geo-Informatics Approach in Watershed Planning of Irrigation Tanks Connected with Batticaloa Lagoon: A Case Study of Unnichchai Watershed." In Space and Time Visualisation, 195–206. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24942-1_12.

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Xu, Kai, Chris Rooney, Peter Passmore, and Dong-Han Ham. "A User Study on Curved Edges in Graph Visualisation." In Diagrammatic Representation and Inference, 306–8. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31223-6_34.

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Mogles, Nataliya, Lia Emanuel, Chris Snider, James Gopsill, Sian Joel-Edgar, Kevin Robinson, Ben Hicks, David Jones, and Linda Newnes. "Information Visualisation for Project Management: Case Study of Bath Formula Student Project." In Design Computing and Cognition '18, 651–67. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05363-5_35.

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Euman, Rob, and José Abdelnour-Nocera. "Data Visualisation, User Experience and Context: A Case Study from Fantasy Sport." In Human-Computer Interaction. Users and Contexts of Use, 146–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-39265-8_16.

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Nienkemper-Swanepoel, Johané, Niël Le Roux, and Sugnet Gardner-Lubbe. "A Simulation Study for the Identification of Missing Data Mechanisms Using Visualisation." In Data Analysis and Rationality in a Complex World, 205–13. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-60104-1_23.

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Shapiro, Ben Rydal. "What About Interaction Geography to Evaluate Physical Learning Spaces?" In Teacher Transition into Innovative Learning Environments, 167–79. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7497-9_14.

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AbstractThis paper reviews and explores how interaction geography, a new approach to visualize people’s interaction over space and time, extends current approaches to evaluate physical learning spaces. This chapter begins by reviewing representations produced using interaction geography to study visitor engagement and learning in a museum. In particular, this review illustrates Mondrian Transcription, a method to map people’s movement and conversation over space and time, and the Interaction Geography Slicer (IGS), a dynamic visualisation tool that supports new forms of interaction and multi-modal analysis. Subsequently, this chapter explores how interaction geography may advance the evaluation of physical learning spaces by providing dynamic information visualisation methods that support more expansive views of learning and the evaluation of the alignment between space and pedagogy. This chapter concludes by outlining significant limitations and next steps to expand interaction geography to evaluate physical learning spaces.
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Conference papers on the topic "Visualisation study"

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Selvan, A. N., R. Saatchi, B. P. Amavasai, and J. R. Travis. "A Dissimilarity Visualisation System for CT: Pilot Study." In EUROCON 2005 - The International Conference on "Computer as a Tool". IEEE, 2005. http://dx.doi.org/10.1109/eurcon.2005.1630118.

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Wang, Tzai Der, Xiaochuan Wu, and Colin Fyfe. "Comparative study of visualisation methods for temporal data." In 2012 IEEE Congress on Evolutionary Computation (CEC). IEEE, 2012. http://dx.doi.org/10.1109/cec.2012.6253005.

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Price, Gareth, Tom Marchant, and Chris Moore. "A case study highlighting the benefits of a novel three dimensional evidence driven, shape model supported, segmentation algorithm." In International Conference on Medical Information Visualisation - BioMedical Visualisation (MediVis 2007). IEEE, 2007. http://dx.doi.org/10.1109/medivis.2007.1.

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Del Fatto, Vincenzo, Sandro Bimonte, Ali Hassan, and Monica Sebillo. "A Preliminary Study of Metrics and Methods for Readable Spatial OLAP Maps: VGI4Bio Case Study." In 2018 22nd International Conference Information Visualisation (IV). IEEE, 2018. http://dx.doi.org/10.1109/iv.2018.00058.

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Braeken, An, Lucas Sterckx, Abdellah Touhafi, Yannick Verbelen, and Francis Guening. "Comparative study of electronic visualisation techniques for e-learning." In 2012 IEEE Global Engineering Education Conference (EDUCON). IEEE, 2012. http://dx.doi.org/10.1109/educon.2012.6201189.

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Kot, Blazej, Burkhard Wuensche, John Grundy, and John Hosking. "Information visualisation utilising 3D computer game engines case study." In the 6th ACM SIGCHI New Zealand chapter's international conference. New York, New York, USA: ACM Press, 2005. http://dx.doi.org/10.1145/1073943.1073954.

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Groznik, Vida, Aleksander Sadikov, Martin Mozina, Dejan Georgiev, and Ivan Bratko. "Attribute Visualisation for Computer-Aided Diagnosis: A Case Study." In 2014 IEEE International Conference on Healthcare Informatics (ICHI). IEEE, 2014. http://dx.doi.org/10.1109/ichi.2014.47.

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Lota1, Paramjit Singh, and Jyoti Trivedi. "Site Layout Planning Through BIM Visualisation – A Case Study." In 27th Annual Conference of the International Group for Lean Construction (IGLC). International Group for Lean Construction, 2019. http://dx.doi.org/10.24928/2019/0203.

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Calvi, Licia, Hans Bouwknegt, Moniek Hover, Frank Ouwens, Juriaan van Waalwijk, and Albert van Schendel. "Experiencing Van Gogh’s Heritage: A Case Study." In Electronic Visualisation and the Arts (EVA 2014). BCS Learning & Development, 2014. http://dx.doi.org/10.14236/ewic/eva2014.16.

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Adamo-Villani, Nicoletta, Ronnie Wilbur, and Mara Wasburn. "Gender Differences in Usability and Enjoyment of VR Educational Games: A Study of SMILE™." In 2008 International Conference Visualisation VIS. IEEE, 2008. http://dx.doi.org/10.1109/vis.2008.10.

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Reports on the topic "Visualisation study"

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McCarthy, Noel, Eileen Taylor, Martin Maiden, Alison Cody, Melissa Jansen van Rensburg, Margaret Varga, Sophie Hedges, et al. Enhanced molecular-based (MLST/whole genome) surveillance and source attribution of Campylobacter infections in the UK. Food Standards Agency, July 2021. http://dx.doi.org/10.46756/sci.fsa.ksj135.

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This human campylobacteriosis sentinel surveillance project was based at two sites in Oxfordshire and North East England chosen (i) to be representative of the English population on the Office for National Statistics urban-rural classification and (ii) to provide continuity with genetic surveillance started in Oxfordshire in October 2003. Between October 2015 and September 2018 epidemiological questionnaires and genome sequencing of isolates from human cases was accompanied by sampling and genome sequencing of isolates from possible food animal sources. The principal aim was to estimate the contributions of the main sources of human infection and to identify any changes over time. An extension to the project focussed on antimicrobial resistance in study isolates and older archived isolates. These older isolates were from earlier years at the Oxfordshire site and the earliest available coherent set of isolates from the national archive at Public Health England (1997/8). The aim of this additional work was to analyse the emergence of the antimicrobial resistance that is now present among human isolates and to describe and compare antimicrobial resistance in recent food animal isolates. Having identified the presence of bias in population genetic attribution, and that this was not addressed in the published literature, this study developed an approach to adjust for bias in population genetic attribution, and an alternative approach to attribution using sentinel types. Using these approaches the study estimated that approximately 70% of Campylobacter jejuni and just under 50% of C. coli infection in our sample was linked to the chicken source and that this was relatively stable over time. Ruminants were identified as the second most common source for C. jejuni and the most common for C. coli where there was also some evidence for pig as a source although less common than ruminant or chicken. These genomic attributions of themselves make no inference on routes of transmission. However, those infected with isolates genetically typical of chicken origin were substantially more likely to have eaten chicken than those infected with ruminant types. Consumption of lamb’s liver was very strongly associated with infection by a strain genetically typical of a ruminant source. These findings support consumption of these foods as being important in the transmission of these infections and highlight a potentially important role for lamb’s liver consumption as a source of Campylobacter infection. Antimicrobial resistance was predicted from genomic data using a pipeline validated by Public Health England and using BIGSdb software. In C. jejuni this showed a nine-fold increase in resistance to fluoroquinolones from 1997 to 2018. Tetracycline resistance was also common, with higher initial resistance (1997) and less substantial change over time. Resistance to aminoglycosides or macrolides remained low in human cases across all time periods. Among C. jejuni food animal isolates, fluoroquinolone resistance was common among isolates from chicken and substantially less common among ruminants, ducks or pigs. Tetracycline resistance was common across chicken, duck and pig but lower among ruminant origin isolates. In C. coli resistance to all four antimicrobial classes rose from low levels in 1997. The fluoroquinolone rise appears to have levelled off earlier and among animals, levels are high in duck as well as chicken isolates, although based on small sample sizes, macrolide and aminoglycoside resistance, was substantially higher than for C. jejuni among humans and highest among pig origin isolates. Tetracycline resistance is high in isolates from pigs and the very small sample from ducks. Antibiotic use following diagnosis was relatively high (43.4%) among respondents in the human surveillance study. Moreover, it varied substantially across sites and was highest among non-elderly adults compared to older adults or children suggesting opportunities for improved antimicrobial stewardship. The study also found evidence for stable lineages over time across human and source animal species as well as some tighter genomic clusters that may represent outbreaks. The genomic dataset will allow extensive further work beyond the specific goals of the study. This has been made accessible on the web, with access supported by data visualisation tools.
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