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2023

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Show, Prefer And Tell: Incorporating User Preferences Into Image Captioning, Annika Lindh, Robert J. Ross, John Kelleher Jan 2023

Show, Prefer And Tell: Incorporating User Preferences Into Image Captioning, Annika Lindh, Robert J. Ross, John Kelleher

Conference papers

Image Captioning (IC) is the task of generating natural language descriptions for images. Models encode the image using a convolutional neural network (CNN) and generate the caption via a recurrent model or a multi-modal transformer. Success is measured by the similarity between generated captions and human-written “ground-truth” captions, using the CIDEr [14], SPICE [1] and METEOR [2] metrics. While incremental gains have been made on these metrics, there is a lack of focus on end-user opinions on the amount of content in captions. Studies with blind and low-vision participants have found that lack of detail is a problem [6, 13, …


Capturing The Behaviour Of Volunteer Pedestrians In A Newly-Developed University Campus Using A Distributed Array Of Bluetooth Low Energy Devices, Ahlam Al Anbouri, Mayank Parmar, David Powell, Paula Kelly, Niall Holmes Dr., Damon Berry, Lorraine D'Arcy Jan 2023

Capturing The Behaviour Of Volunteer Pedestrians In A Newly-Developed University Campus Using A Distributed Array Of Bluetooth Low Energy Devices, Ahlam Al Anbouri, Mayank Parmar, David Powell, Paula Kelly, Niall Holmes Dr., Damon Berry, Lorraine D'Arcy

Conference papers

Contemporary public infrastructure projects emphasise sustainable options that integrate pedestrian routes, leisure facilities and convenient access to public transport systems. It is important to understand the effectiveness of these contemporary designs. In the age of the General Data Protection Regulation (GDPR), there is a need to develop technologybased solutions that collect information about the behaviour of pedestrians in public spaces as they commute and engage in leisure pursuits while simultaneously preserving the privacy of these citizens. Bluetooth Low Energy (BLE), has privacypreserving features that make it worth considering as part of a technology solution for studies of this type. This …


Indication Of Pedestrian’S Travel Direction Through Bluetooth Low Energy Signals Perceived By A Single Observer Device, Mayank Parmar, Paula Kelly, Damon Berry Jan 2023

Indication Of Pedestrian’S Travel Direction Through Bluetooth Low Energy Signals Perceived By A Single Observer Device, Mayank Parmar, Paula Kelly, Damon Berry

Conference papers

This paper presents a study to understand the directional sensitivity of a Bluetooth Low Energy (BLE) monitoring device (Observer) and whether, using a single such Observer, the characteristics of its antenna can be used to identify the direction of a pedestrian’s movement. To comprehend the directional characteristics of the antenna of the Observer employed for this study, the device is subjected to BLE signals emitted from a BLE beacon (Broadcaster) in an anechoic chamber. The results of this study confirmed that in the clean, noiseless environment of the chamber, the antenna we employed is clearly more receptive to signals emerging …


Exploring The Impact Of Competition And Incentives On Game Jam Participation And Behaviour, John Healy, Niamh Germaine Jan 2023

Exploring The Impact Of Competition And Incentives On Game Jam Participation And Behaviour, John Healy, Niamh Germaine

Conference papers

Competitive elements are a common feature of many game jams. However, there has been little research to date on the impact of competition on participants and their behaviours. To better understand how incentives and competition may affect the motivations and behaviour of game jam participants, we surveyed 47 game jam participants and analysed data from 4,564 online game jams. We found that incentives and competition were neither strong deterrents nor significant motivators for game jam participation. However, a significant percentage of the participants surveyed indicated that incentives and competition would affect their behaviour during a game jam. Our findings suggest …


Communety: Deep Learning-Based Face Recognition System For The Prediction Of Cohesive Communities, Syed Afaq Ali Shah, Weifeng Deng, Muhammad Aamir Cheema, Abdul Bais Jan 2023

Communety: Deep Learning-Based Face Recognition System For The Prediction Of Cohesive Communities, Syed Afaq Ali Shah, Weifeng Deng, Muhammad Aamir Cheema, Abdul Bais

Research outputs 2022 to 2026

Effective mining of social media, which consists of a large number of users is a challenging task. Traditional approaches rely on the analysis of text data related to users to accomplish this task. However, text data lacks significant information about the social users and their associated groups. In this paper, we propose CommuNety, a deep learning system for the prediction of cohesive networks using face images from photo albums. The proposed deep learning model consists of hierarchical CNN architecture to learn descriptive features related to each cohesive network. The paper also proposes a novel Face Co-occurrence Frequency algorithm to quantify …


Transition Theory And The Emotional Journey To Medical Educator Identity: A Qualitative Interview Study, J Browne, T Collett Jan 2023

Transition Theory And The Emotional Journey To Medical Educator Identity: A Qualitative Interview Study, J Browne, T Collett

Peninsula Medical School

Background. Medical academia is in crisis, with fewer people entering and growing concern at numbers leaving. While faculty development is often seen as part of the solution, there are significant issues with faculty not engaging with and resisting development opportunities. Lack of motivation may be linked to what might be called a ‘weak’ educator identity. We studied medical educators' experiences of career development to gain further insights into: how professional identity may develop; individuals' accompanying emotional responses to perceived identity change; and consideration of the accompanying temporal dimensions. Drawing on new materialist sociology, we explore medical educator identity formation in …


The Power Of Education In A Globalised World: Challenging Geoeconomic Inequalities, Ozéias Rocha, Daniel Kamphambale, Cormac Macmahon, Jon Hans Coetzer, Lucía Morales Jan 2023

The Power Of Education In A Globalised World: Challenging Geoeconomic Inequalities, Ozéias Rocha, Daniel Kamphambale, Cormac Macmahon, Jon Hans Coetzer, Lucía Morales

Articles

The globalization process has led to significant levels of controversy, as over the past few years, researchers have highlighted its negative connotations in terms of exacerbating economic inequalities, environmental degradation, exploitation of workers, loss of cultural diversity, and negative influence on democratic systems and financial stability. The negative connotation associated with the globalization process is not surprising. The implications for the global educational system significantly dominated by the influence of Western values, culture, and economic models based on consumerism to the detriment of traditional cultural and local identities have been eroded. The world economies are facing emerging areas of significant …


Circular Pedagogy To Advance The Integration Of Learning Technologies: Supporting Technological Universities Cultural Transformation, Nadia Barkoczi, Iulia Stefan, Ivaylo Peev, Todor Todorov, Lia Pop, Claudia Marian, Cristina Campian, Sonia Munteanu, Patrick Flynn, Jon-Hans Coetzer, Lucia Morales Jan 2023

Circular Pedagogy To Advance The Integration Of Learning Technologies: Supporting Technological Universities Cultural Transformation, Nadia Barkoczi, Iulia Stefan, Ivaylo Peev, Todor Todorov, Lia Pop, Claudia Marian, Cristina Campian, Sonia Munteanu, Patrick Flynn, Jon-Hans Coetzer, Lucia Morales

Working Papers

European countries need active and proactive educational systems assisted by models that can drive a cultural transformation that supports sustainable socio-economic and environmental development. In this paper, we reflect on the future of European education. We offer some insights on how the foundations of a new educational model (ANEM) could be cemented and solidly supported by pillars that acknowledge our societies' rich and diverse cultures. Furthermore, the European University of Technology's (EUt+) future educational model is taken as a case study to enable us to reflect and analyse the need for novel pedagogies that drive change for a more sustainable …


An Accumulation Of Care: Affect In The Role Of The Contemporary Curator, Sara-Jayne Parsons Jan 2023

An Accumulation Of Care: Affect In The Role Of The Contemporary Curator, Sara-Jayne Parsons

School of Art, Design and Architecture Theses

This research portfolio investigates an affective approach to contemporary curatorial practice that is shaped by an accumulation of care. By retracing my working methods and noticing small shifts or interruptions, I reveal transformative, incremental changes in my work as a curator. I introduce curatorial practice where care is described as the physical and intellectual concern for objects in a museum, and consider traditional narratives ascribed to the role of a curator. I then propose an expanded understanding of care in curatorial practice that goes beyond stewardship to encompass engagement, empathy and allyship. Adopting a posthumanist methodological strategy which negotiates subjectivity …


Towards Quantum Computing For Audio And Music Expression, Paulo Vitor Itaboraí Jan 2023

Towards Quantum Computing For Audio And Music Expression, Paulo Vitor Itaboraí

School of Law, Humanities and Social Sciences Theses

This research delves into the initial approaches of the use of emerging Quantum Computing technologies in music practice, anchored on preliminary studies on Quantum Representation of Audio (QRA). The approach is interdisciplinary, and attempts to explore the object - QRA - both from a technical scope and an artistic scope. A systematic review unifies diverse QRA techniques, spotlighting the need to bring accessibility to these techniques and terminologies (dense in theoretical physics formalism) for a computer music and/or artistic audiences, in a didactic manner. In this review, some additional techniques initially only discussed for representing images are translated into audio. …


Alterity In Central And Eastern European Illustrations For The Lord Of The Rings 1981-1993, Joel Merriner Jan 2023

Alterity In Central And Eastern European Illustrations For The Lord Of The Rings 1981-1993, Joel Merriner

School of Law, Humanities and Social Sciences Theses

The 2001-2003 cinematic release of Peter Jackson’s movie adaptation of J.R.R. Tolkien’s The Lord of the Rings heralded a period of widespread pictorial homogenisation in Tolkien visual culture. Propelled by the conceptual design of veteran “Western” Tolkien artists Alan Lee and John Howe, Jackson’s vision of Middle-earth became the hegemonic model by which other depictions are measured. Consequently, the potential for undertaking a scholarly examination of an alternative, specifically non-Western Tolkien vision (with all the implications for visual difference and/or commonality this might involve), has been largely ignored. This dissertation, however, seeks to foster a deeper understanding of the possibility …


‘My Blood Is In It’: A Phenomenological Study Of International Doctoral Students’ Embodied Experience Of A University Campus, Anne Bentley Jan 2023

‘My Blood Is In It’: A Phenomenological Study Of International Doctoral Students’ Embodied Experience Of A University Campus, Anne Bentley

School of Law, Humanities and Social Sciences Theses

Reflecting its Cartesian underpinnings, academic scholarship privileges discourse over embodiment, resulting in a lack of research about international doctoral students' bodily experience of Higher Education. International students represent a significant income stream for UK universities and offer the opportunity for the meeting of different cultures, minds and bodies. Using phenomenological theory and taking embodiment as its starting point, this thesis explores the implicit dimensions of international doctoral students' everyday experience of campus. Walking interviews, photo-elicitation and semi-structured interviews with eight international doctoral students yielded embodied, visual and discursive methods. Merleau-Ponty, Ahmed and Arendt were used to theorise the interrelated embodied, …


Editorial: Investigating The Effect Of The Physical Context On Customer Experience, Helen L. Bruce, Ewa Krolikowska, Tara Rooney Jan 2023

Editorial: Investigating The Effect Of The Physical Context On Customer Experience, Helen L. Bruce, Ewa Krolikowska, Tara Rooney

Articles

This editorial introduces a special issue of the Journal of Services Marketing, dedicated to articles discussing the effect of the physical context on customer experience. The editorial identifies diverse areas of extant knowledge which researchers might draw upon when investigating the effect of the physical context on customer experience. to inform future research agendas.


Women Microbusiness Owners’ Entrepreneurial Marketing Decision-Making During A Crisis, Helen L. Bruce, Tara Rooney, Ewa Krolikowska Jan 2023

Women Microbusiness Owners’ Entrepreneurial Marketing Decision-Making During A Crisis, Helen L. Bruce, Tara Rooney, Ewa Krolikowska

Articles

Understanding effective marketing decision-making is key to driving business performance. However, knowledge of marketing decision-making by microbusiness owners is limited. Moreover, little is known about how microbusiness owners make marketing decisions under crisis conditions. This article explores entrepreneurial marketing decision-making by women microbusiness owners during the COVID-19 pandemic, through qualitative interviews with providers of children’s activities, who migrated their services online during lockdown. Findings shed light on their marketing decision-making by highlighting transitions between causation and effectuation approaches and identifying key resources leveraged in effectuation decision-making. We also observe how distinct principles of effectuation may be combined to make effective …


How Online Discourse Networks Fields Of Practice: The Discursive Negotiation Of Autonomy On Art Organisation About Pages, Tommie Soro Jan 2023

How Online Discourse Networks Fields Of Practice: The Discursive Negotiation Of Autonomy On Art Organisation About Pages, Tommie Soro

Articles

This article examines how the online discourse of art organisations forges relationships between the artworld and the fields of politics and economy. Combining elements of Pierre Bourdieu’s field analysis and Norman Fairclough’s critical discourse analysis, the article analyses an elite art magazine, e-flux, and an elite art museum, IMMA, and the activities of discourses, genres, and utterances on their about pages. Its results suggest that the about pages of these organisations forge links between the artworld and the fields of politics and economy by mobilising discourse in these fields and by incorporating discourse practices from these fields. The ideological tension …


Solving Electromagnetic Inverse Scattering Problems In Inhomogeneous Media By Deep Convolutional Encoder-Decoder Structure, Huan Huan Zhang, He Ming Yao, Lijun Jiang, Michael Ng Jan 2023

Solving Electromagnetic Inverse Scattering Problems In Inhomogeneous Media By Deep Convolutional Encoder-Decoder Structure, Huan Huan Zhang, He Ming Yao, Lijun Jiang, Michael Ng

Electrical and Computer Engineering Faculty Research & Creative Works

This communication proposes a novel deep learning (DL) approach to solve electromagnetic inverse scattering (EMIS) problems in inhomogeneous media. The conventional approaches for solving inhomogeneous EMIS problems generally have to consider inhomogeneous Green’s functions or conduct approximation operations to media, which inevitably introduces various challenges, including complex mathematical derivation, high computation cost, unavoidable nonlinearity, and even strong ill-posedness. To avoid these challenges, we propose a DL approach based on the complex-valued deep convolutional neural networks (DConvNets), which comprise the deep convolutional encoder–decoder (DCED) structure. Its training data are collected based on the simple synthetic dataset. While the scattered fields received …


Implementing The Fast Full-Wave Electromagnetic Forward Solver Using The Deep Convolutional Encoder-Decoder Architecture, He Ming Yao, Lijun Jiang, Michael Ng Jan 2023

Implementing The Fast Full-Wave Electromagnetic Forward Solver Using The Deep Convolutional Encoder-Decoder Architecture, He Ming Yao, Lijun Jiang, Michael Ng

Electrical and Computer Engineering Faculty Research & Creative Works

In this communication, a novel deep learning (DL)-based solver is proposed for the electromagnetic forward (EMF) process. It is based on the complex-valued deep convolutional neural networks (DConvNets) comprising an encoder network and a corresponding decoder network with pixel-wise regression layer. The encoder network takes the incident EM wave and the contrast (permittivity) distribution of the object as the input. It channels the processed data into the corresponding decoder network to predict the total EM field due to the scatter of the input incident EM wave. The training of the proposed DConvNets is done using the simple synthetic dataset. Due …


A Machine Learning Approach To Support Neuromorphic Device Design And Microfabrication, Abdi Yamil Vicenciodelmoral, Md Mehedi Hasan Tanim, Feng Zhao, Xinghui Zhao Jan 2023

A Machine Learning Approach To Support Neuromorphic Device Design And Microfabrication, Abdi Yamil Vicenciodelmoral, Md Mehedi Hasan Tanim, Feng Zhao, Xinghui Zhao

Electrical and Computer Engineering Faculty Research & Creative Works

Neuromorphic chips provide a potential solution for sustainable computing, as they attempt to mimic the neuronal architectures in human brain and show great potentials in reducing energy consumption in the order of magnitude and also improve the computational performance. However, the fabrication process for neuromorphic chips is costly and currently based on trial-and-error, which adds complexity to the design process. In this paper, we address these challenges by designing and developing machine learning guided microfabrication process for Resistive Random Access Memory (RRAM), which is a key device in neuromorphic chips. Specifically, our research makes the following contributions: 1) we successfully …


A Potential Role For Sirtuin-1 In Alzheimer's Disease: Reviewing The Biological And Environmental Evidence, Mehrane Mehramiz, Tenielle Porter, Eleanor K. O'Brien, Stephanie R. Rainey-Smith, Simon M. Laws Jan 2023

A Potential Role For Sirtuin-1 In Alzheimer's Disease: Reviewing The Biological And Environmental Evidence, Mehrane Mehramiz, Tenielle Porter, Eleanor K. O'Brien, Stephanie R. Rainey-Smith, Simon M. Laws

Research outputs 2022 to 2026

Sirtuin-1 (Sirt1), encoded by the SIRT1 gene, is a conserved Nicotinamide adenine dinucleotide (NAD+) dependent deacetylase enzyme, considered as the master regulator of metabolism in humans. Sirt1 contributes to a wide range of biological pathways via several mechanisms influenced by lifestyle, such as diet and exercise. The importance of a healthy lifestyle is of relevance to highly prevalent modern chronic diseases, such as Alzheimer's disease (AD). There is growing evidence at multiple levels for a role of Sirt1/SIRT1 in AD pathological mechanisms. As such, this review will explore the relevance of Sirt1 to AD pathological mechanisms, by describing the involvement …


Calling Time: How To Remove Fossil Fuel Sponsorships From Sports, Arts & Events, Ashlee Morgan, Sophia Nimphius, Genevieve Stewart, Jennifer Rayner, Ashleigh Croucher, Simon Bradshaw Jan 2023

Calling Time: How To Remove Fossil Fuel Sponsorships From Sports, Arts & Events, Ashlee Morgan, Sophia Nimphius, Genevieve Stewart, Jennifer Rayner, Ashleigh Croucher, Simon Bradshaw

Research outputs 2022 to 2026

Sports, arts and major events are deeply embedded in the Australian way of life. Weekend matches, concerts and festivals bring us together - to cheer, to share pride and excitement, to feel connected to each other and to keep building our national story.

When we barrack for our beloved teams, discover the work of a new local artist or laugh until our cheeks hurt at a comedy show, we are taking part in a ritual that has shaped social and cultural life in Australia for generations.

Climate change – driven by burning coal, oil and gas – is putting all …


Dentists And Hepatitis B Vaccination – An In Vivo National Study, Ghassan Yared, Aynaa Al Khatib, Wassim Al Manhal, Nathalie Yared, Ronald Younes Jan 2023

Dentists And Hepatitis B Vaccination – An In Vivo National Study, Ghassan Yared, Aynaa Al Khatib, Wassim Al Manhal, Nathalie Yared, Ronald Younes

International Arab Journal of Dentistry

Introduction: Hepatitis B continues to be a serious occupational concern for dental healthcare practitioners, with the possibility of transmission occurring during patient care practices. The incidence of hepatitis B amongst dentists, the factors raising their occupational risk, and the efficiency of vaccination programs in reducing this risk are all examined in this paper’s methodical evaluation of the body of prior research. This study addresses the important confluence of hepatitis B infection, occupational exposure, and vaccination status amongst dentists. In addition, it provides methods for improving the protection of dental professionals against hepatitis B infection by summarizing major findings and …


Spore-Forming Clostridium (Clostridioides) Difficile In Wastewater Treatment Plants In Western Australia, Jessica M. Chisholm, Papanin Putsathit, Thomas V. Riley, Su-Chen Lim Jan 2023

Spore-Forming Clostridium (Clostridioides) Difficile In Wastewater Treatment Plants In Western Australia, Jessica M. Chisholm, Papanin Putsathit, Thomas V. Riley, Su-Chen Lim

Research outputs 2022 to 2026

There is growing evidence that shows Clostridium (Clostridioides) difficile is a pathogen of One Health importance with a complex dissemination pathway involving animals, humans, and the environment. Thus, environmental discharge and agricultural recycling of human and animal waste have been suspected as factors behind the dissemination of Clostridium difficile in the community. Here, the presence of C. difficile in 12 wastewater treatment plants (WWTPs) in Western Australia was investigated. Overall, C. difficile was found in 90.5 % (114/126) of raw sewage influent, 48.1 % (50/104) of treated effluent, 40 % (2/5) of reclaimed irrigation water, 100 % (38/38) of untreated …


Heterogeneous Microstructure And Mechanical Behaviour Of Al-8.3fe-1.3v-1.8si Alloy Produced By Laser Powder Bed Fusion, S. J. Yu, P. Wang, H. C. Li, R. Setchi, M. W. Wu, Z. Y. Liu, Z. W. Chen, S. Waqar, Lai-Chang Zhang Jan 2023

Heterogeneous Microstructure And Mechanical Behaviour Of Al-8.3fe-1.3v-1.8si Alloy Produced By Laser Powder Bed Fusion, S. J. Yu, P. Wang, H. C. Li, R. Setchi, M. W. Wu, Z. Y. Liu, Z. W. Chen, S. Waqar, Lai-Chang Zhang

Research outputs 2022 to 2026

The relationship between processing parameters, microstructure, and mechanical properties of Al-8.3Fe-1.3V-1.8Si alloy processed by laser powder bed fusion is seldom studied. Therefore, fully dense alloys with two parameters were selected to investigate this key issue. The results show that the alloy with low power and scanning speed (S200) shows fan-shell-shaped melt pools and laser tracks while another (S350) shows a deeper and wider melt pool. Both alloys obtain a heterogeneous microstructure without a secondary phase in melt pool (MP) and a nano-sized phase in melt pool boundary (MPB). The difference between solid-solution strengthening and Orowan strengthening in MP and MPB …


Conceptualising Wellbeing For Australian Aboriginal Lgbtqa+ Young People, Shakara Liddelow-Hunt, Ashleigh Lin, James H. L. Hill, Kate Daglas, Braden Hill, Yael Perry, Mirella Wilson, Bep Uink Jan 2023

Conceptualising Wellbeing For Australian Aboriginal Lgbtqa+ Young People, Shakara Liddelow-Hunt, Ashleigh Lin, James H. L. Hill, Kate Daglas, Braden Hill, Yael Perry, Mirella Wilson, Bep Uink

Research outputs 2022 to 2026

It is likely that young people who are both Aboriginal and Torres Strait Islander and LGBTQA+ would be at increased risk for poor mental health outcomes due to the layered impacts of discrimination they experience; however, there is very little empirical evidence focused on the mental health and wellbeing of Aboriginal and Torres Strait Islander LGBTQA+ young people. The current study represents a qualitative exploration of wellbeing among Aboriginal LGBTQA+ young people. This study consisted of semi-structured interviews and focus groups with Aboriginal LGBTQA+ young people aged 14–25 years old in the Perth metropolitan area of Western Australia. Thematic analysis …


Consumer Behavior Analysis On Sales Process Model Using Process Discovery Algorithm For The Omnichannel Distribution System, Ferra A. Tridalestari, Mustafid, Ferry Jie Jan 2023

Consumer Behavior Analysis On Sales Process Model Using Process Discovery Algorithm For The Omnichannel Distribution System, Ferra A. Tridalestari, Mustafid, Ferry Jie

Research outputs 2022 to 2026

Currently, Omnichannel distribution services are experiencing very rapid development around the world. In the Omnichannel distribution services, each existing sales channel will be connected to each other through integration capabilities so that no channels are left neglected. This is able to provide the best experience for consumers when shopping both online through mobile devices, laptops, and in physical stores. But on the other hand, this creates problems for business people who develop Omnichannel services. On the one hand, it facilitates the marketing process, but on the other hand, business people have difficultyreading the behavior of consumers who use Omnichannel distribution …


Mapping The Research Trends On Social Media In The Hospitality Sector From 2010 To 2020, Eunjung Kim, Alexander Rolfe Best, Kijung Choi Jan 2023

Mapping The Research Trends On Social Media In The Hospitality Sector From 2010 To 2020, Eunjung Kim, Alexander Rolfe Best, Kijung Choi

Research outputs 2022 to 2026

Purpose: This study undertakes a systematic review of the literature to gain insight into existing studies on hospitality in social media and provide an update on current trends and themes in scholarship. Design: This study employs the systematic literature review to identify, evaluate, and synthesize the existing literature. Methodology: A total of 165 papers published between 2010–2020 were examined using content analysis and Leximancer. Approach: This review uses a hybrid review structure that incorporates structured reviews and narrative elements supported by Leximancer analysis. Findings: The review highlights the theories and methods used, research fields and perspectives, and key research topics …


Global Uncertainty And Economic Growth–Evidence From Pandemic Periods, Deepa Bannigidadmath, M. H. A. Ridhwan, Fiskara Indawan Jan 2023

Global Uncertainty And Economic Growth–Evidence From Pandemic Periods, Deepa Bannigidadmath, M. H. A. Ridhwan, Fiskara Indawan

Research outputs 2022 to 2026

This paper investigates whether global uncertainty predicts economic growth rates using a global sample of 136 countries. We use the panel regression model and find strong evidence that global uncertainty negatively predicts the economic growth rate. Further, the negative impact of global uncertainty on economic growth rates is amplified during pandemic periods versus non-pandemic periods. Our main findings hold after a range of robustness tests.


A Bibliometric Analysis And Review On The Performance Of Polymer-Modified Bitumen, Adham M. Alnadish, Herda Y. B. Katman, Mohd R. Ibrahim, Yaser Gamil, Nuha S. Mashaan Jan 2023

A Bibliometric Analysis And Review On The Performance Of Polymer-Modified Bitumen, Adham M. Alnadish, Herda Y. B. Katman, Mohd R. Ibrahim, Yaser Gamil, Nuha S. Mashaan

Research outputs 2022 to 2026

The addition of polymer to a base binder has been documented as a successful approach in terms of improving physical and rheological properties of the base bitumen. However, the main drawbacks of polymer-modified bitumen are incompatibility and degradation of polymer due to aging. This article aims to introduce a bibliometric analysis and review on modifying bitumen with polymers. Additionally, this article intent to highlight the significant gaps and recommendations for future work. Furthermore, another objective of this article is to provide a worth attempt regrading reducing the negative impact of polymer’s drawbacks on the performance of polymer-modified base binder. The …


Biofilm Formation On The Surface Of Monazite And Xenotime During Bioleaching, Arya Van Alin, Melissa K. Corbett, Homayoun Fathollahzadeh, M. Christian Tjiam, William D. A. Rickard, Xiao Sun, Andrew Putnis, Jacques Eksteen, Anna H. Kaksonen, Elizabeth Watkin Jan 2023

Biofilm Formation On The Surface Of Monazite And Xenotime During Bioleaching, Arya Van Alin, Melissa K. Corbett, Homayoun Fathollahzadeh, M. Christian Tjiam, William D. A. Rickard, Xiao Sun, Andrew Putnis, Jacques Eksteen, Anna H. Kaksonen, Elizabeth Watkin

Research outputs 2022 to 2026

Microbial attachment and biofilm formation is a ubiquitous behaviour of microorganisms and is the most crucial prerequisite of contact bioleaching. Monazite and xenotime are two commercially exploitable minerals containing rare earth elements (REEs). Bioleaching using phosphate solubilizing microorganisms is a green biotechnological approach for the extraction of REEs. In this study, microbial attachment and biofilm formation of Klebsiella aerogenes ATCC 13048 on the surface of these minerals were investigated using confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). In a batch culture system, K. aerogenes was able to attach and form biofilms on the surface of three phosphate …


Conife-Layered Double Hydroxide Decorated Co-N-C Network As A Robust Bi-Functional Oxygen Electrocatalyst For Zinc-Air Batteries, Yasir Arafat, Yijun Zhong, Muhammad R. Azhar, Mohammad Asif, Moses O. Tadé, Zongping Shao Jan 2023

Conife-Layered Double Hydroxide Decorated Co-N-C Network As A Robust Bi-Functional Oxygen Electrocatalyst For Zinc-Air Batteries, Yasir Arafat, Yijun Zhong, Muhammad R. Azhar, Mohammad Asif, Moses O. Tadé, Zongping Shao

Research outputs 2022 to 2026

Rechargeable zinc-air batteries (ZABs) are cost-effective energy storage devices and display high-energy density. To realize high round-trip energy efficiency, it is critical to develop durable bi-functional air electrodes, presenting high catalytic activity towards oxygen evolution/reduction reactions together. Herein, we report a nanocomposite based on ternary CoNiFe-layered double hydroxides (LDH) and cobalt coordinated and N-doped porous carbon (Co-N-C) network, obtained by the in-situ growth of LDH over the surface of ZIF-67-derived 3D porous network. Co-N-C network contributes to the oxygen reduction reaction activity, while CoNiFe-LDH imparts to the oxygen evolution reaction activity. The rich active sites and enhanced electronic and mass …