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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.
61

Towards terminology research as a practical philosophy of information : the terminology of radical constructivism as a case in point

Neubauer, P. B. January 2014 (has links)
The thesis presents a perspective on the possibility of harnessing sociocognitive terminology and related practices to the aim of describing philosophical terminology. In this case, the terminology of the radical constructivist philosopher Ernst von Glasersfeld is surveyed as a starting point. The experimental terminological records produced are re-incorporated into the theoretical basis constituted by the thesis. Therefore, its aim can be seen as twofold; the description of philosophical terminology also entails theory construction. The practice described can be seen as regenerative theory construction. It incorporates elements of formulation and of codification/ language engineering in terms of contemporary computational possibilities. In terms of its theoretical basis, the project extends not only to the terminology used in the corpus texts but also to concepts and terms needed to understand these in the first place. The outlook can be described as heuristic and experimental. The approach breaks down to the following sub-problems. Each can be seen as characteristic for terminology description in the human sciences: (1) The idea of conceptual entities and concept description needs to be adjusted to the field of experience. This starts from sociocognitive terminology and incorporates the anthropological view of concept analysis. (2) The conceptual entity of stereotype has to be accounted for, as the variance of the descriptions of immaterial objects suggests that they can only be apprehended in a radically simplified manner. (3) The application of prototype theory employed as by sociocognitive theory and the Aristotelian concept theory of (post-)classical terminology research needs to be adapted to the description of ideal types. This is compressed into the concept of scientificity. (4) The principles developed need to be compressed into the conventional categories of principle and approach. These categories need to be set in relation to both philosophical concepts and experience. (5) This design of a possible practice needs to be adapted to existing procedures. The existing procedures may be in need of clarification or redefinition against the background of their usage in non-standard contexts. (6) To facilitate this mutual adaptation, peculiarities of the context of philosophical terminography are explored and compressed under the concept of disciplinarity. To this, there is a declarative aspect and a procedural one. (7) The procedural approach to disciplinarity develops an understanding of the intentional aspect of agenda and interest. These orient the development of potential consensus about disciplinarity within the constraints of context and therefore the apparent identity of (sub- (sub-))cultures inside the context. (8) Following these observations, the overall theoretical and methodological construct is tested against exemplary cases. To conclude, a practice for implementing these considerations is suggested. It includes the use of text fragments as units for textographic philosophical terminography and an understanding of computational information management practices appropriate to its principles.
62

Automated classification in digital images of osteogenic differentiated stem cells

abdelgawadbirry, R. January 2013 (has links)
The study of stem cells has received considerable attention in forming many different tissue types, and gives hope to many patients as it provides great potential for discovering treatments and cures to many diseases such as Parkinson's disease, schizophrenia, Alzheimer's disease, cancer, spinal cord injuries and diabetes. This study was concerned with developing algorithms that analyses microscope images of stem cells harvested from the bone marrow or dental pulp of a rabbit, expanded in the laboratory at the Tissue Engineering Center in Alexandria, Egypt, and then transplanted into subcutaneous pouches of the rabbit. The research aimed to detect automatically as soon as osteogenic differentiated stem cells were ready to be implanted in the defective parts, thereby avoiding the cells becoming damaged by bacterial infection. A further requirement was that the algorithms would not use traditional (chemical) markers which eventually lead to the sample being discarded as it dies after adding the marker. A total of 36 microscopy images were obtained from seven separate experiments each lasting over 10 days, and the clinicians visually classified 18 images as showing not-ready osteogenic differentiated stem cells and the remaining images showing a variety of cells ready for implantation. The ready cells typically appeared as a colony, or spread all over the image interconnecting together to form a layer. Initially, image pre-processing and feature extraction techniques were applied to the images in order to try and identify the developing cells, and a t-test was applied to the total cell area in each image in an attempt to separate the not-ready and ready images. While there was a significant difference between not-ready images and the ready images which showed the colony shaped characteristics, there was no significant difference between not-ready images and ready images with the spreading interconnecting layer shape, and so more sophisticated classification techniques were investigated. As the differentiated stem cells are effectively texture based images, each of the 36 images were divided into quadrants to give a total of 144 images to increase the image dataset. Several sets of texture parameters were derived from the grey-scale histogram statistics, Grey-Level Co-occurrence Matrix (GLCM), and Discrete Cosine Transform (DCT) spatial frequency components of the images. Some of these parameters were used with traditional classification techniques including cross-correlation, and Euclidean distance measures to try and classify the texture relative to the first image (not-ready) in each experiment and the other images (not-ready and ready) in the experiment. The success rate using cross-correlation was 70%, and 68% for the Euclidean distance approach. Secondly, intelligent classification techniques using Artificial Neural Networks (ANN) were considered, using the various texture parameters as inputs to a feed-forward 1-hidden layer MLP using Back-propagation of Errors for training. The ANN approach gave the better results, with 77% using the grey-scale histogram statistics, 73% for GLCM, and 92% for the DCT with 70 spatial frequency components. It was observed for each of the experiments that images became classified as ready for implantation after approximately 10 days, and then remained ready for the rest of the experiment.
63

The influence of media representations on mental health practitioners

Murphy, Neil Anthony January 2015 (has links)
The debates related to the representation of the mentally ill in the media have been wide ranging over the last 20 years. Emergent representations have often been stigmatizing, claiming that the mentally ill are violent and dangerous. This study used an emergent methodological design to explore what the current representations of the mentally ill were and identify a case study from the available representations. It then examined the influence that the case study had on the thoughts and practice of experienced mental health practitioners. The study involved 8 practitioners and identified thoughts influenced by reading the case study and an academic article. Practitioner’s thoughts were captured over 3 separate interviews and by practitioners providing written reflections. At the last interview, practitioners were asked to provide comments as to what the experience of taking part in the study had meant to them. Generic themes related to risk, blame and professionalism all emerged. The study also found that practitioners were able to reflect on the influence that the material had on them, finding that only after discussing the reflections in the interviews that they became aware of some of their defensive thoughts and actions. The outcome of the study is that the media continue to present a negative representation of the mentally ill and mental health care, and that practitioner’s thoughts and actions are influenced by the media representation.
64

The transmission and reception of P.B. Shelley in Owenite and Chartist newspapers and periodicals

Morgan, J. A. January 2014 (has links)
This thesis examines the nature of the relationship between Shelley and the thought, politics, and discursive practices of Owenism and Chartism. Its objects of analysis are Owenite periodicals and Chartist newspapers, which I theorise as active in the process of transmission and reception. This thesis locates the reception and transmission of Shelley’s poetry and politics within the broader context of the movements’ political and social commitments. It makes an original contribution to knowledge by demonstrating that the movements used Shelley’s poetry critically and with discrimination. It also argues that Owenite and Chartist approaches to Shelley changed as the movements developed over time in response to historical pressures. I argue that a cultural materialist approach enables us to reconsider the nature of Shelley’s influence and popularity within these movements, something that has become a critical commonplace. It also allows us to distinguish between Owenite and Chartist ‘Shelleys’. I argue that the Owenite periodicals the Crisis and the New Moral World produced a qualitatively different Shelley from the one that emerged in Chartist newspapers such as the Northern Star. Although there was a degree of overlap between the two movements in terms of social commitments and personnel, the parameters set by the formal qualities and discursive strategies of the movements’ print cultures allowed different Shelleys to emerge within them. In terms of content, the Owenites quoted Shelley’s poetry to support their social theories and the most frequently quoted poems were Queen Mab and The Revolt of Islam. The Chartists also used Queen Mab, but were less interested in a feminist poem like Revolt and more interested in poems that allowed them to articulate class conflict. I account for such differences within my broader argument: that the two movements had qualitatively different conceptions of the possibilities of language and aesthetics, and different approaches to social conflict.
65

Automated speckle tracking in ultrasound images of tendon movements

Mohamed, A. S. A. January 2015 (has links)
The central aim of this thesis was to develop new tracking software employing various image tracking algorithms for tracking the speckled movement of the tendon image captured using dynamic B-mode ultrasound imaging. The algorithms were selected based on the literature related to the tracking of images captured using ultrasound imaging. Experiments were carried out to validate these tracking algorithms in order to enable development of the tracking software. The experiments conducted paralleled the objectives in designing, developing, experimenting and implementing the image-tracking algorithm to track movement of the human tendon in vivo within the speckled ultrasound images. The development of the tracking software focuses on solving the problems of tracking the ultrasound images as well as analysing the tracking movement frame-by-frame to produce useful measurements that can be used to describe the localised mechanical and structural properties of the human tendon. The algorithms tested were Normalised Cross Correlation (NCC), Mean Square Error (MSE), optical flow – Lucas-Kanade (LK) and combination of NCC and MSE (NCCMSE) selected by signal-to-noise ratio (SNR) and were tested on both active and passive movements of the patella tendon (knee) and the medial gastrocnemius tendon (ankle). The comparison of the algorithms led to the identification of a single algorithm giving optimal result. The results from all tested algorithm showed NCC to be the closest match to the standard manual measurement. NCC was also the fastest among the algorithms tested and contained fewer errors in tracking. For NCC algorithm, various sizes of the region of interest (ROI) block were also tested and found that 15x15 pixels ROI block size gave the optimum measurement, which was close to the standard manual measurement. The threshold levels also indicated that >0.90 to be the optimum level for optimum tracking. The 2- ROI tracking analysis were also explored to look at the tracking performances when tracking at two different regional sites of the tendon simultaneously, and again the  NCC performed better with 15x15 ROI block size and comparable to the results obtained from the standard manual measurement. Lastly, multiple layers of the tendon were also explored to look at the excursion of the anterior, midsection and posterior layers of the tendon during ramped isometric contraction. This experiment uses all the settings found from previous experiment results, and applied to look at the mechanical properties of the human tendon. The experiments showed that the anterior gave the highest mean stain followed by the mid section and the smallest mean strain was found at the posterior proximal. The experiment also looked at the distal strain, with the result showing that the posterior gave the highest mean strain followed mid section and anterior layer gave the smallest mean strain. The experiment also looked at the performance of posterior layers and distal layers at 50 and 100% force levels. The experimental results showed that the NCC to be the optimum-tracking algorithm. The method described here has the potential to improve clinical knowledge relating to the tendon mechanical properties. The information generated by the tracking algorithm could help to give further insight into the aetiology of tendon injury, repair, response to various training interventions and the time course of tissue adaptation with disease.
66

Investigating teenage visitors to science discovery centres : the case of Techniquest

Simons, N. C. January 2014 (has links)
Science discovery centres and science museums have been considered one of the most important institutions in the public understanding of science and technology (Lewenstein 2001). However, science discovery centres attract few teenage visitors. Visitation to cultural attractions has often been dominated by visitors with a higher socio-economic status and a higher educational background (Rowe 2011). It is nonetheless the case that few teenagers visit science discovery centres, regardless of their socio-economic background. Prior research into the motivations of adult visitors to museums has indicated that cultural factors, which may be correlated with demographics, but are not determined by them, can explain why some people visit and some do not (Merriman 1991, Hood 1983). Further research has suggested more nuanced explanations relating to personal identity issues (Rounds 2006, Falk 2006, Falk 2011) and agendas (Doering and Pekarik 1996). Much of the previous research that has been undertaken focuses on the museum cultural landscape and adult visitors. This research provides an investigation into teenage attitudes towards, and perceptions of, Techniquest Science Discovery Centre in Cardiff, with a focus on how they perceive informal science learning and the relationship between education and entertainment. The study used a mixed-methods approach (Creswell 2006) utilising an attitude survey (n=647) and a series of focus groups (n=39) with teenagers. Statistical and thematic analysis was applied to the resulting data. The research found that the majority of teenagers had complex interpretations of Techniquest, in which prior experience of it shaped perceptions of what it could offer them now. Although these interpretations encompassed a mixture of structural, personal, and situational factors, key to their interpretation was the memory of having had to negotiate various social roles when at the centre. These roles often challenged their personal entry agendas. The teenagers demonstrated a 'performative’ element (Goffman 1959, vom Lehn 2006) in their behaviour, which was based on social interaction with others and was also connected to how they ‘framed’ the situation (as education or entertainment or both). This was linked to an idea of 'identity maintenance', whereby they sought to preserve social and situational experiences that they had predefined. While it was found that many of the younger teenagers saw a more synergic relationship between education and entertainment, the older teenagers had a more complex and ambivalent view; they saw the science discovery centre as both a leisure destination and a school resource and identified some conflict between these two things. This study provides much needed data and analysis that can inform future practice and improve engagement with teenage audiences in science discovery centres.
67

An investigation of employee and consumer perceptions of responsible internet gambling

Mulkeen, J. January 2013 (has links)
Within the UK, the Gambling Act 2005 remains the primary piece of legislation that governs how the gambling industry is regulated. The Act established the following licensing principles upon which gambling practices should be based: that gambling should not be a source of crime or disorder, be associated with crime or disorder or be used to support crime; gambling should be conducted in a fair and open way; and children and other vulnerable people should not be harmed or exploited. Reflecting the general principles of corporate citizenship, the Gambling Act 2005 implies that those organisations which provide gambling products and services should integrate ethics and social responsibility within their operational and strategic frameworks and within their corporate governance. This thesis focuses on employee and consumer perceptions of responsible gambling in general, and specifically in terms of the utility of responsible gambling tools that are available to them. It reviews literature relating to corporate social responsibility and responsible gambling from a variety of perspectives ranging from those who propose that the ultimate responsibility rests with the consumer to those who recommend that gambling organisations should be able to demonstrate compliance with responsible gambling initiatives. The primary data analysis is based on two studies: one focusing on responsible gambling perceptions of 17 employees from a leading Internet gambling provider; and a second study based on 425 consumer perceptions of responsible gambling provisions which were elicited using an Internet based questionnaire. The interviews were analysed using thematic analysis whilst statistical applications including linear regression and multinomial regression were used to analyse questionnaire responses. The analysis highlights factors that undermine the current approach of responsible gambling which is based on the principle of self-identification, self-help and self-regulation by the consumer. For example, it proposes that employee and consumer perceptions of responsible gambling are based on the following four components: perceptions of potential conflicts of interest with a system; willingness to engage with responsible gambling tools; the perceived effectiveness of the responsible gambling systems and the level of responsibility associated with marketing activities. In addition, it distinguishes between financial motives in terms of those who gamble to earn income and those who gamble to win money and it highlights that human factors, such as the need for autonomy and mastery are as significant as social, financial, escape and arousal factors in influencing an individual’s decision to gamble. The study recommends a review of the way in which gambling addiction is diagnosed and research and treatment are funded. This will include challenges for policy makers and providers of gambling products and services in terms of how responsible gambling may further be improved in the future.
68

Creative industries policy in Taiwan : the effects of neoliberal reform

Tsai, Hui-Ju January 2018 (has links)
Since 2002 Taiwan has transformed its cultural policy, following the lead of the UK's creative industry discourse in particular and neoliberal policy regimes in general. This thesis investigates the processes through which neoliberal thinking shaped changing cultural policy and the impact this has had on cultural workers and practices in Taiwan s cultural landscape. I examined policy making documents and interviewed a range of involved actors, including government officials and cultural workers to learn more about the policy process and its impact. The research argues that the creative economy has heavily influenced the development of cultural policy discourse and generally failed to promote the public interest in Taiwan. The results of neoliberalisation have been embodied in several salient characteristics such as the privatisation of public space, marketisation of public subsidy and investment, commercialisation of higher education, and flexibilisation of cultural labour market. I argue that cultural policy needs to be reshaped to represent the public interests and diversity of our cultural landscape.
69

Best practices of networks in the Finnish music industry

Paakkanen, Miia January 2012 (has links)
The purpose of this research is to study the practice of networks in the crea- tive industries, which are thought to carry great economic, social and cultural po- tential inherent in them. The creative industries are said to be valuable especially for the development of a small and open economy like Finland. Networks, on the other hand, are identified as important in the business of micro entrepreneurial firms composing the creative industries, but the practice is still less researched. Thus, in order to better understand and support the needs of the creative industries regarding networks this thesis aims to identify best practices of networks in one specific creative industry of the small and open economy of Finland, the Finnish music industry. Seven Finnish music industry professionals including both men and women and representing different roles, music genres, lengths of careers and aspects of the Finnish music industry are face-to-face interviewed according to the method of Appreciative Inquiry (AI) focusing on successes and positive aspects instead of weaknesses and limitations. That is, with AI the Finnish music industry profes- sionals were encouraged to discuss their networks as part of their lives and work as truthfully and naturally as possible without pushing them to list some sort of requirements or expectations. A comprehensive list of best practices of networks is identified. Additional- ly, aspects of a great networking seminar are included in the list. Most important- ly, networks and relationships are said to mean everything to the Finnish music industry professionals interviewed in terms of developing their career and busi- ness as well as adding to their personal well-being. The findings discuss the ap- preciated aspects of and the appreciated elements received through networks. Al- so, the findings show how different practices of networks are needed in different situations in the lives of the Finnish music industry professionals interviewed and how different aspects of networks best serve their needs. To give an example, ap- preciated elements received through networks include information, ideas, advice, support, increase in happiness, facilitation of the work load, identification of new business opportunities, new opportunities through being recommended, progress business-wise, results, increase in the effectiveness of business, increase in the feeling of belonging to a community and new additional network contacts, and whereas the need to recognize new business opportunities, for example, is best satisfied with weak links, the need for support is better satisfied with strong ties.
70

the Creative Destruction of Hamilton: a Cultural approach to the Urban Regeneration of a City in Economic Transition

Kisielewski, Mariusz January 2011 (has links)
Charles Darwin proclaimed, “It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change”. At the time, he probably did not fathom the relevance of his statement to the economy of cities. As the manufacturing sector dissipates, industrial cities strive to adapt by diversifying their local economy. This research provides a narrative of Hamilton’s industrial development and its transformation in search of a new identity. It examines the city’s economical, social and physical decay and its current urban regeneration that is based on the re-appropriation of its cultural landscape. This thesis argues that when cities focus only on the economic dimension of development, it may have an adverse influence on their inherent cultural identity which serves to undermine their ability to adapt and diversify. For Hamilton, a case in point is urban transformation of James Street North in a city that was recently subject to decades of neglect. James Street North has become the centre of a bourgeoning arts scene that is beginning to revitalize its neighbourhood. The thesis proposes the adaptive re-use of a deteriorated yet historically significant urban block within the area. The design intervention advocates an urban intensification intended to materialize a social and aesthetic identity derived from the urban agendas of Jane Jacobs, Charles Landry, and Sharon Zukin. The design synthesis proposes to establish a ‘creative milieu’ that becomes a catalyst for social cohesion, sustainable regeneration and an incubator for creativity. The design strategy consists of a hybrid building typology that is able to intensify diversity, exhibit creativity and engage dialogue among its occupants.

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