Minerva Elements Records
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ItemSupply chain risk management for projects: A review, a taxonomy, a framework, and a research agenda(University of Bath, 2024)This study investigates the critical role of supply chain risk management (SCRM) as a factor for growth and competitive advantage in project management. While there is extensive literature on risk management, there is a notable gap in the development of a comprehensive risk taxonomy tailored to project management supply chains. Through a systematic literature review of 50 scholarly articles, this paper categorizes and identifies prevalent supply chain risks and their potential impacts, which influence the entirety of project supply chains. It introduces a novel SCRM taxonomy, elucidating its significance in the context of project management. Additionally, the research proposes a future research agenda aimed at supporting the theoretical foundations of SCRM, thereby facilitating its formalization and strategic refinement. This endeavor enhances our understanding of SCRM’s key role in project management, providing a structure for future research and application across diverse industries, beyond the traditional focus on construction.
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ItemThe affordance of boundary objects for codified project learning sharing between communities of practice: Pilot study results and learnings for selected sustainability demonstration projects(University of Bath, 2024)Effective project-to-project learning can prevent projects from repeating the same mistakes however externalised knowledge sharing is necessary to overcome temporal, geographical and organisational barriers. Externalised sharing for this purpose requires the codification of knowledge relating to project learnings within boundary objects, where codification may be impacted by an array of complex considerations. Among these considerations is whether the capacity of the boundary object affords boundary spanning between communities of practice, where boundary-spanning capacity is influenced by the characteristics codified within the object. The grand-challenge context of sustainability demonstration projects provides an important case context for boundary spanning as these projects have knowledge sharing and learning as a central focus, key driver and intended outcome. While the application of boundary objects has been explored in a wide range of domains and cases, this article specifically considers the characteristics of boundary objects representing codified project learnings to afford project-to-project knowledge sharing, a focus which has not yet been studied in either the sustainability demonstration context or any other project-to-future learning organisation case context. An initial pilot study has been conducted with four sustainability demonstration case projects, with results and learnings to guide the refinement of future large-scale research design.
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ItemNo Preview AvailableInvestigation of the community's perceptions of flood risks and attitudes towards flood mitigation options in the Goulburn Broken Catchment, Victoria, Australia(Society for Risk Analysis ANZ, 2024-02-01)
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ItemA Colorful Formalization of the Typological Prevalence Hypothesis(The Cognitive Science Society, 2023)Languages vary in the way they categorize semantic domains. Incidentally certain semantic systems appear more often than others across the world. Recent research has shown that the attested variability can be explained as the result of languages being a plurality of optimal solutions to efficiency constraints. However, the question of the prevalence remains open. Assuming that languages are a form of culturally transmitted cognitive technology, the Typological Prevalence Hypothesis proposes that the prevalence of a linguistic system is explained by how cognitively natural it is to learn and use. We aim to formalize and test this hypothesis by proposing an information-theoretic measure of communicative and developmental naturalness applied to color typology. While controlling for phylogenetic relatedness, we find that both communicative and developmental naturalness are important predictors of typological prevalence.
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ItemEnhancing Predictive Modeling in Emergency Departments(SCITEPRESS - Science and Technology Publications, 2024)Increasing global Emergency Department (ED) visits, exacerbated by COVID-19, has presented multiple challenges in recent years. Electronic Health Records (EHRs) as comprehensive digital repositories of patient health information offer a pathway to construct prediction systems to address these issues. However, the heterogeneity of EHRs complicates accurate predictions. A notable challenge is the prevalence of high-cardinality nominal features (NFs) in EHRs. Due to their numerous distinct values, these features are often excluded from the analysis, risking information loss, reduced accuracy, and interpretability. This study proposes a framework, integrating a preprocessing technique with target encoding (TE-PrepNet) into machine learning (ML) models to address challenges of NFs from MIMIC-IV-ED. We evaluate performance of TE-PrepNet in two specific ED-based prediction tasks: triage-based hospital admissions and ED reattendance within 72 hours at discharge time. Incorporating three NFs, our approach demonstrates improvements compared to the baseline and outperforms previous research that overlooked NFs. Random forest model with TE-PrepNet in the prediction of hospitalisation achieved an AUROC of 0.8458, compared to the baseline AUROC of 0.7520. For the prediction of ED reattendance within 72 hours, the utilisation of XGBoost yielded an improvement, attaining an AUROC of 0.6975, outperforming the baseline AUROC of 0.6166.
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ItemHigh resolution bio-imaging via inverse design of metasurfaces(SPIE, 2024-03-08)Metasurfaces with angular sensitivity have been shown to provide a platform for developing an ultra-compact phase imaging system. Their performance, however, is often limited to a narrow range of spatial frequencies. Here, we apply inverse design to design and fabricate a metasurface an asymmetric optical transfer function across a numerical aperture (NA) of 0.6. The engineered response of this device enables phase imaging of microscopic transparent objects.
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ItemExamining the effects of the COVID-19 pandemic on technology-enabled social interactions(ACM, 2023)This study investigated the impact of the COVID-19 pandemic on technology-enabled social interactions using the Social Presence Theory (SPT). Cross-sectional data were collected through an online survey, with participation from 515 Australian adults aged 18 years and above. Bivariate and multinomial logistic regression analysis showed that age group differences significantly predicted satisfaction levels with online interactions, with the 18-40 age group being less satisfied than participants aged 41 and over. In addition, face-to-face interaction was highly preferred over online interactions. Socio-demographic factors such as age, gender, and marital status were significantly associated with the type of interaction individuals reported missing the most when they could not interact face-to-face. Most participants reported missing physical and emotional connection when they could not interact face-to-face. The study adds to the existing knowledge about the effects of the COVID-19 pandemic on social interactions, providing insights into both practical paraphernalia and implications for further research.
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ItemReevaluating the Land Use Impact of a Li-ion Battery Related Mining Project: A Case Study of Greenbushes Mine(Elsevier BV, 2024)The mining industry plays a pivotal role in the global transition towards clean energy, driven by the escalating demand for critical elements like lithium. However, this growth raises profound environmental concerns, particularly regarding land use, global warming potential, water consumption, acidification, eutrophication, and toxicity. Life Cycle Assessment (LCA) has historically relied on approximations and theoretical methods, resulting in systematic underestimations of these impacts. This study begins to address part of this discrepancy by leveraging remote sensing technologies to gather empirical evidence. Focusing on the Greenbushes mining site in Australia, a comprehensive investigation was conducted to quantitatively evaluate the direct land use impact from satellite imagery over the life of the project. Comparative analyses were performed against various mid-point Life Cycle Impact Assessment (LCIA) methods. The findings unequivocally reveal a substantial under-reporting of the land use impact, highlighting the critical need for more accurate assessments in the context of mining activities. This research underscores the importance of empirical data in refining our understanding of the environmental footprint associated with mining operations, particularly in the critical context of clean energy transition. The study emphasises the imperative to reevaluate and adjust existing approaches to accurately account for the full scope of environmental impacts associated with mining operations.
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ItemAn exploration of public perceptions of place character in the Pathuriaghata neighborhood of Kolkata, India(AMPS (Architecture, Media, Politics, Society), 2023)People living in one location for a considerable period of time often form what has been termed ‘place attachments’ to those locations and their associated features. In historic cities continuously inhabited by generations of people, long-time residents interact with the landscape settings, associating meanings, uses, and values to different landscape features to form person-place bonds, such that these features in the landscape become integral to their own sense of personal identity― Proshanky has termed this as ‘person-place identity’ since it conveys the person’s own aspect of individual identity that gets mediated by the physical environment and the meanings and values associated with particular places and associated features to which they have become attached. In this way certain features in the landscape can serve as perceptual cues that remind residents of where they belong and who they are and can become ingrained as their ‘place-memory’. As early as 1925 it was suggested by Maurice Halbwachs that landscape features in a place are not remembered in isolation, but together as ‘collective memory’ of a landscape setting. Groups of people residing in one place for long periods of time can share similar memories and person-place bonds that give rise to ‘cultural memories’ allowing the ‘concretion of identity’ of a place to occur. This is experienced as the distinctive ‘feel’ or ‘character’ of a place as expressed by its landscape and associated place features, people, history, and ways of life. In the case of any historic city, historical urban patinas collage together conveying place identity through cultural memory that is often of heritage value and an important resource for sustaining good quality of life. Natural and cultural (tangible and intangible) heritages support the livability of residents through providing sustainable local economies, traditional livelihoods, use of local resources in traditional arts and crafts, and environment-friendly methods of construction. According to the ICOMOS Burra Charter 1999 “places of cultural significance enrich people’s lives, often providing a deep and inspirational sense of connection to community and landscape, to the past and to lived experiences”; this charter further suggests that changes to such places should entail “as little as possible so that its cultural significance is retained.”
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ItemExploring residents' definition and use of neighbourhood leftover spaces in Colombo, Sri Lanka(Amps (Architecture, Media, Politics, Society), 2023)Urban leftover spaces are the residual spaces or cracks in cities that form due to rapid urban development. "urban voids" These types of spaces have also been referred to as "lost spaces", "loose spaces", They are typically vacant, neglected, or underutilized spaces within highly urbanized areas and can be permanent or temporary. They are often considered urban spaces awaiting future use. and "informal urban green spaces". These types of spaces have been studied for over five decades, with much of that research aimed at understanding their characteristics and potential uses in urban environments. The specific socio-economic and environmental context in which the spaces occur often influences the results. While these spaces occur at different urban scales and land use zones, their presence at the neighbourhood level has often been overlooked. Furthermore, although interest in these spaces has dramatically increased in recent years, their specific uses and definitions are often unclear due to the various ways they are interpreted and perceived.