Detection of breast cancer with electrical impedance mammography

Electrical Impedance Tomography (EIT) is a medical imaging technique that reconstructs internal electrical conductivity distribution of a body from impedance data that is measured on the body surface, and Electrical Impedance Mammography (EIM) is the technique that applies EIT in breast cancer detection. The use of EIM for breast cancer identification is highly desirable because it is a non-invasive and low-cost imaging technology. EIM has the potential in detecting early stage cancer, however there are still challenges that hindering EIM to be provided as a routine health care system. There are three major groups of obstacles. One is the hardware design, which includes the selection of electronic components, electrode-skin contacting methods, etc. Second is theoretical problems such as electrode configurations, image reconstruction and regularization methods. Third is the development of analysis methods and generation of a cancerous tissue database. Research reported in this thesis strives to understand these problems and aims to provide possible solutions to build a clinical EIM system. The studies are carried out in four parts. First the functionalities of the Sussex Mk4 EIM system have been studied. Sensitivity of the system was investigated to find out the strength and weakness of the system. Then work has been made on image reconstruction and regularization methods in order to enhance the system’s endurance to noise, also to balance the reconstruction conductivity distribution throughout the reconstructed object. Then a novel cancer diagnosis technique was proposed. It was developed based on the electrical property of human breast tissue and the behaviour or systematic noise, to provide repeatable results for each patient. Finally evaluation has been made on previous EIM systems to find out the major problems. Based on sensitivity analysis, an optimal combined electrode configuration has been proposed to improve sensitivity. The system has been developed and produced meaningful clinical images. The work makes significant contributions to society. This novel cancer diagnosis method has high accuracy for cancer identification. The combined electrode configuration has also provided flexibilities in the designing of current driving and voltage receiving patterns, thus sensitivity of the EIM system can be greatly improved

Interpretation of Natural-language Robot Instructions: Probabilistic Knowledge Representation, Learning, and Reasoning

A robot that can be simply told in natural language what to do -- this has been one of the ultimate long-standing goals in both Artificial Intelligence and Robotics research. In near-future applications, robotic assistants and companions will have to understand and perform commands such as set the table for dinner'', make pancakes for breakfast'', or cut the pizza into 8 pieces.'' Although such instructions are only vaguely formulated, complex sequences of sophisticated and accurate manipulation activities need to be carried out in order to accomplish the respective tasks. The acquisition of knowledge about how to perform these activities from huge collections of natural-language instructions from the Internet has garnered a lot of attention within the last decade. However, natural language is typically massively unspecific, incomplete, ambiguous and vague and thus requires powerful means for interpretation. This work presents PRAC -- Probabilistic Action Cores -- an interpreter for natural-language instructions which is able to resolve vagueness and ambiguity in natural language and infer missing information pieces that are required to render an instruction executable by a robot. To this end, PRAC formulates the problem of instruction interpretation as a reasoning problem in first-order probabilistic knowledge bases. In particular, the system uses Markov logic networks as a carrier formalism for encoding uncertain knowledge. A novel framework for reasoning about unmodeled symbolic concepts is introduced, which incorporates ontological knowledge from taxonomies and exploits semantically similar relational structures in a domain of discourse. The resulting reasoning framework thus enables more compact representations of knowledge and exhibits strong generalization performance when being learnt from very sparse data. Furthermore, a novel approach for completing directives is presented, which applies semantic analogical reasoning to transfer knowledge collected from thousands of natural-language instruction sheets to new situations. In addition, a cohesive processing pipeline is described that transforms vague and incomplete task formulations into sequences of formally specified robot plans. The system is connected to a plan executive that is able to execute the computed plans in a simulator. Experiments conducted in a publicly accessible, browser-based web interface showcase that PRAC is capable of closing the loop from natural-language instructions to their execution by a robot

Transforming shape: hybrid practice as group activity

Printed textile and garment design are generally taught and practised as separate disciplines. Integrated CAD software enables textile and clothing designers to envisage printed garments by assimilating graphic imagery with 2D garment shapes and 3D visualizations. Digital fabric printing can be employed to transpose print-filled garment shapes directly onto cloth. During a recently completed practice-led PhD (1998-2003), I researched the aesthetic design potential of combining new CAD technology with garment modelling methods to create new innovative printed textiles/garments. The merging of physical and screen-based making resulted in a hybrid 3D approach to the body, cloth and print referred to as the 'simultaneous design method'. In 2001 this hybrid practice provided the catalyst for a collaborative textile research project at the Nottingham Trent University, UK. The group included surface, shape and multimedia designers. The key group aim was to explore the transforming effects of computer-aided textile design through dialogues between two and three dimensions. In parallel with my own practice, print and embroidery were considered from a 3D starting-point through the relating of geometric cloth shapes to the form. Each designer took an idiosyncratic approach to the selection and integration of imagery with the shapes. The novel consideration of the final modelled textile at the start of the designing process influenced each designer in different ways, leading to a collection of contrasting, original outcomes that were displayed in the exhibition Transforming Shape (UK 2001, Denmark 2003). The exhibition demonstrated the design opportunities (and limitations) of new and existing technologies, specifically the relationship between innovative textile imagery and three-dimensional form. The designs illustrated the premise that surface designs can be engineered through different pattern shapes and that engineer-printed shapes transform the body

Transforming shape: a simultaneous approach to the body, cloth and print for garment and textile design (synthesising CAD with manual methods)

Printed textile and garment design are generally taught and practised as separate disciplines. Integrated CAD software enables textile and clothing designers to envisage printed garments by assimilating graphic imagery with 2D garment shapes, and 3D visualisations. Digital printing can be enlisted to transpose print-filled garment shapes directly onto cloth. This research challenges existing 2D practice by synthesising manual and CAD technologies, to explore the integration of print design and garment shape from a simultaneous, 3D perspective. This research has identified three fundamental archetypes of printed garment styles from Twentieth Century fashion: 'sculptural', 'architectural' and 'crossover'. The contrasting spatial characteristics and surface patterning inherent in these models provided tlýe theoretical and practical framework for the research. Design approaches such as'textile-led', 'garment-led'and 'the garment as canvas' highlighted the originality of the simultaneous design method, which embraces all of these concepts. This research recognises the body form as a positive influence within the printed textile and printed garment designing process, whereby modelled fabric shapes can be enlisted to determine mark making. The aim of the practice, to create printed garment designs from a 3D perspective, was facilitated by an original method of image capture, resulting in blueprinted toiles, or cyanoforms, that formed the basis of engineer-printed garments and textiles. Integrated CAD software provided the interface between manual modelling, design development and realisation, where draping software was employed to digitally craft 3D textiles. The practical and aesthetic characteristics of digital printing were tested through the printing of photographic-style, integrated garment prototypes. The design outcomes demonstrate that a simultaneous approach to the body, cloth and print can result in innovative textile vocabulary, that'plays a proactive role within the design equation, through its aesthetic integration with garment and form. The integration of print directly with the garment contour can result in a 3D orientated approach to printed garment design that is empathetic with the natural body shape

KEER2022

Avanttítol: KEER2022. DiversitiesDescripció del recurs: 25 juliol 202

The spread of luxury culture amongst Kuwaiti women. Analysis of luxury brand development in Kuwait from the oil discovery until present

This research investigates the distinct characteristics of Kuwaiti heritage in the context of textile and fashion accessories. Moreover, it addresses how these characteristics can be used in the creation of new contemporary designs that reflect Kuwaiti women’s cultural identity at the current time and are perceived as luxury fashion. Luxury has always been associated with privileged and high-class people who use it as a tool to distinguish themselves from the public in any society. This has been practiced as far back as ancient civilisations such as the Ancient Egyptians and Greeks. In Kuwait, before the discovery and production of oil, Kuwaiti society was predominantly living in modesty and poverty, luxury being exclusive to merchants and the ruling family since they could afford it and, importantly, had access to it. Nowadays, a phenomenon exists, mostly among women in Kuwaiti society, in which women’s identity and social status are determined by the visible brands and luxury fashion logos they choose to wear. This research concentrates on the spread of luxury culture in Kuwait from the period just before the discovery of oil until the current time. Furthermore, the research investigates the relationship between the formation of cultural identity and luxury fashion brands within the context of Kuwait. The purpose of this study is to investigate the main factors and events that have a significant impact on Kuwaiti women’s tendency towards the acquisition of Western luxury fashion brands. In addition, it aims to identify the factors that have remarkably contributed to changing the perception of luxury in Kuwaiti society, in order to understand the relationship between luxury and the formation of cultural identity. The researcher uses interviews as the main method for data collection and deploys observation, analysis of visual evidences and participation as supporting methods. Moreover, the chosen strategy is mainly employed in the form of a case study and action research. This study found that there is usually a model for the spread of luxury culture in any society. Kuwait passed through a number of phases in that model within almost 75 years. Currently, Kuwaiti women are recognizing the concept of luxury fashion through their access to Western luxury brands. They wear luxury fashion brands as a means of defining their social position in society, demonstrating that they are economically capable of purchasing expensive fashion labels. However, they are defining their cultural identity through other aspects than fashion. Moreover, both cultural identity and perception of luxury are constantly changing and are influenced and shaped by the surrounding dynamic environment

Critical Success Factors of International Franchising: Case Studies of Foreign Franchisors in Asia

A multiple case study of four foreign franchisors was conducted in 2000 to study the critical success factors of international franchising in East Asia. The four franchisors were chosen because they possess different international franchising capabilities and are at varying levels of internationalisation. This study provides a useful insight into how a foreign franchisor should approach and compete successfully in East Asia. Firstly, the research provides a conceptual model, which displays the six key categories and success factors for international franchising in East Asia. The study has made a significant contribution in identifying two new categories that have mostly been neglected by researchers in international franchising. Secondly, the study reveals a unique form of master franchising that is being practiced in East Asia. Thirdly, the effective management of Asian partners is found to begin with recruiting the right partners with the desired characteristics and subsequently developing a long-term mutually beneficial working relationship with the partners. Finally, successful franchisors were found to believe strongly in the power of branding and niche marketing in East Asia

The effect of long term training on the bone mineral density and muscle strength of perimenopausal athletes

The aim of this research was to determine if long term training (20 years+) in a high impact weight bearing sport (netball/basketball: NB/88), a low impact weight-bearing sport (running/ field hockey: GEN) and a non weight-bearing sport, swimming (SWI) produced a positive relationship with regional bone mineral density (BMD) and muscle strength. Method: Three groups of perimenopausal athletes (n=20) plus a control group (CON) (n=20) had Total Body BMD and body composition measured by DEXA (Hologic QDR 2000) and isometric strength of dominant arm flexors and leg extensors by a strain tensiometer connected to a strength chair. Differences between groups were determined by ANOVA followed by Scheffe Test and correlations by Pearson r. General characteristics, including age, height, weight and calcium intake showed no statistical differences

Playwriting as a visual art: A study of contemporary English-speaking dramaturgy using the works of five playwrights trained as fine artists

In a visual culture where the dividing line between the theatrical and visual art forms is becoming increasingly blurred, it is important to reconsider the ways in which the spatial is conceived. Space is another non-linguistic medium of communication-it does not convey ideas through language, but through an array of visual and spatial components augmented by aural or linguistic threads. Robert Wilson, Maria Irene Fames, John Byme, David Storey and John Arden were trained as fine artists before becoming playwrights. Their works are used to describe stage space as a visible medium of expression. These playwrights make use of principles from painting, sculpture and installation to create spatio-temporal images that work with a text to form a theatrical performance. They have constructed their pieces with an implicit visual structure that is essential to their staging. Each manipulates aesthetic concepts gleaned from the fine arts as mechanisms to create three dimensional theatrical compositions, which can be categorised as 'scopic building blocks'. By analysing these mechanisms with a methodology and vocabulary drawn from the visual arts, a theatrical conception of spatial analysis will become apparent. These playwrights will be placed in the context of the theatre as a seeing place, into which artists often have crossed over and made use of as an expressive form. Then a summary of the playwrights' fine art training will introduce their aesthetic technique, thereby connecting their visual art and theatrical work. Their working methods will be examined so that their 'playwriting' or 'visual scripting' can be defined. Once the evidence is presented, there will be an exploration of the ways in which these techniques can be applied to physical theatre, theatres of images or other visually influenced texts

Advances in Forensic Genetics

The book has 25 articles about the status and new directions in forensic genetics. Approximately half of the articles are invited reviews, and the remaining articles deal with new forensic genetic methods. The articles cover aspects such as sampling DNA evidence at the scene of a crime; DNA transfer when handling evidence material and how to avoid DNA contamination of items, laboratory, etc.; identification of body fluids and tissues with RNA; forensic microbiome analysis with molecular biology methods as a supplement to the examination of human DNA; forensic DNA phenotyping for predicting visible traits such as eye, hair, and skin colour; new ancestry informative DNA markers for estimating ethnic origin; new genetic genealogy methods for identifying distant relatives that cannot be identified with conventional forensic DNA typing; sensitive DNA methods, including single-cell DNA analysis and other highly specialised and sensitive methods to examine ancient DNA from unidentified victims of war; forensic animal genetics; genetics of visible traits in dogs; statistical tools for interpreting forensic DNA analyses, including the most used IT tools for forensic STR-typing and DNA sequencing; haploid markers (Y-chromosome and mitochondria DNA); inference of ethnic origin; a comprehensive logical framework for the interpretation of forensic genetic DNA data; and an overview of the ethical aspects of modern forensic genetics