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The trends of using the Knowledge Quartet Framework in mathematics education research since 2005: Systematic literature review
No full textNumerous frameworks have been developed to describe and assess the pedagogical content knowledge of mathematics teachers. The Knowledge Quartet Framework (KQ), with its focus on professional knowledge for mathematics teaching, has received extensive attention and acknowledgment in various studies. This systematic literature review assessed the growth, use, and application of the KQ in mathematics education research. An analysis of 36 peer-reviewed articles showed that the KQ, initially rooted in UK primary mathematics novice teaching practices, has since gained global prominence. Though originally designed for primary education, applications of KQ span from primary to higher education settings, shedding light on relationships between teacher proficiency, content knowledge, and student performance. Furthermore, while the KQ was primarily associated with mathematics teaching, recent trends have seen its application in disciplines ranging from science to physical education. Key areas of KQ application include reflection on practice, coding and observing classroom practices, understanding the transition of pre-service and novice teachers to experienced classroom teachers, lesson planning, and alignment with other educational frameworks. The review highlights the KQ’s role in enhancing teaching practices across various educational levels, its application in diverse research methodologies, and its expanding scope beyond mathematics education
Design and fabrication of lightweight thin-shell structures using shape memory polymer composites for lunar habitat systems
No full textThe increasing demand for lightweight, rigid, and deployable structures in space exploration has driven the development of advanced materials for lunar and orbital habitats. This study presents the design, fabrication, and validation of modular thin-shell components based on shape memory polymer composites (SMPCs) for deployable rigid habitats. Moreover, the durability in unexplored, harsh environmental conditions and the lower weight are the governing factors for these materials. In this context, well-developed and durable shape memory polymer-based composites (SMPCs) are ideal for these habitats due to their potential to create lightweight, thin-shell structures and their proven ability to revert to their original shape when stimulated by external factors, such as heat and light. Furthermore, this enables the manufacture of SMPC habitat components on Earth, allowing for reduced storage space in payloads, and facilitates the recovery and rebuilding of habitats after transportation. During this study Bisphenol-A cyanate ester based shape memory polymer was synthesised and reinforced with glass fibres and graphene nanoplatelets to achieve quasi-isotropic properties and enhanced thermal stability. Using vacuum-assisted resin infusion, hemispherical thin-shell modules (1 mm thickness) were manufactured and programmed into compact configurations for efficient payload storage. Experimental evaluation demonstrated excellent shape recovery (>95%) and adhesive joint strength, while distributed optical fibre sensing enabled precise strain mapping during programming and recovery. Finite element analysis validated the structural integrity of the assembled dome under internal pressures up to 2 atm, confirming its suitability for lunar habitat applications. Furthermore, this work can be considered one of the pioneering works to use space grade SMPCs in future lunar habitats. The proposed SMPC-based architecture offers a promising solution for lightweight, reconfigurable structures in future space missions, combining deployability, mechanical robustness, and thermal resilience
Jurisprudence and Theology: The Australian School
No full textIn recent years, a distinctive approach to law and religion scholarship has developed in Australia, characterised by direct engagement with theology in addressing legal and jurisprudential questions. This collection consolidates and develops this approach under the label of the ‘Australian School’ of law and religion. The volume brings together leading experts to reflect upon the intersections between jurisprudence and theology and explore jurisprudential and legal questions from various theological standpoints. It presents a contribution to the continual reassessment of the nature and origins of shared norms through the convergent spaces between law and theology, prompting a deeper understanding of the foundations of our common humanity. It also models a way of doing law and religion scholarship that diverges from the dominant focus on the sociological interactions between law and religion in the context of cultural diversity and secular governance. The consistent theme of the collection is that jurisprudence and theology are inextricably intertwined, despite the traditional disciplinary divide between the two literatures. The book addresses both horizontal and vertical perspectives on this issue—horizontal, in the sense of engaging in comparative studies of diverse legal and religious paradigms, and vertical, in the sense of exploring the relationship between legal norms and transcendent sources of value. The book will be of interest to academics and researchers working in the areas of Law and Religion, Jurisprudence, Political Theory, Comparative Law, the History of Ideas and Theology
Progress and Future Trends of E. coli Removal from Water Environment Sources using Antibacterial Activity of Photocatalytic Coated-Surfaces: A Comprehensive Review
No full textIn recent years, the removal of bacteria from water sources has become a critical concern due to its impact on public health. This study examines the use of various nanomaterials, coating methods, and substrates to identify trends and hotspots in efficient E. coli elimination, based on a selected global database from 2003 to 2024. The current study offers a comprehensive review of recent advances in E. coli disinfection using photocatalyst-coated surfaces, while also proposing future research directions based on the current status and limitations. The research creates a visual representation of collaborations on photocatalytic surface coatings aimed at purifying E. coli in water. It analyzes various research domains, researchers, co-citation, and keyword clustering using software such as Citespace, VOSviewer, and Python. A comprehensive analysis of 229 selected studies from 2800 published papers indicates that titanium dioxide (TiO2) is the most commonly used photocatalyst in antibacterial research. Its limited efficiency under natural sunlight has led to research on alternative materials and modification techniques for coatings applied to various substrates Coatings typically utilized materials such as glass, ceramics, stainless steel, and membranes. The primary coating methods included immersing, sol–gel, and dip-coating. This study highlights the advances and research gaps in coating nanomaterials on surfaces for bacterial removal. It also emphasizes the need for innovative strategies to reduce filtration time and to design new high-efficiency reactors
Which dominates CO2 to CO electroreduction from low to industrial current density: Catalyst activity or CO2 availability?
No full textElectrochemical reduction of CO2 (CO2RR) offers a sustainable route for converting renewable electricity into value-added chemicals. However, scaling CO2RR to industrially relevant current densities remains challenging due to intrinsic kinetics barriers, competing side reactions such as the hydrogen evolution reaction (HER), and limitations in CO2 mass transport. To elucidate whether catalyst activity or CO2 availability dominates CO2RR performance across current densities, we engineered flow-through hollow fiber gas diffusion electrodes (HFGDEs) integrated with in-situ grown, defect-rich silver nanosheets. At low current densities, catalytic activity is the primary determinant. The developed HFGDE with defect-rich silver nanosheets yields a high Faradaic efficiency of CO of 93.5 % at −0.8 (V vs. RHE), attributed to enhanced adsorption of *COOH intermediate on silver defect sites, as confirmed by in-situ Raman spectroscopy and density functional theory (DFT) calculations. However, as the system scales to industrially relevant current densities (up to 500 mA/cm2), CO2 availability becomes the dominant limitation due to the intensified fight between CO2 and H2O for electrons. The HFGDE architecture addresses this challenge by continuously supplying convective CO2 flow to the active sites, enabling a CO partial current density of 381.8 mA/cm2 under a total current density of 500 mA/cm2. These findings highlight that while catalyst activity governs CO2RR performance at lower current densities, adequate CO2 supply is essential to maintain high selectivity and suppress HER under industrial conditions
Women’s agricultural participation and the adoption of clean energy: evidence from India
No full textStudies in this field of women's employment and clean energy adoption consider two employment categories (farm and off-farm). We argue that women's participation in agriculture as farmers and labourers has a different impact on clean energy adoption. This research applies biprobit regressions to estimate the impact of the participation of women in agriculture in general and as farmers and labourers in particular on clean energy adoption using India's nationally representative Multiple Indicator Survey (MIS, 2020). To address the simultaneous use of clean energy and solid fuel by households, we create two outcome variables: energy choice for cooking and energy choice extreme (exclusive clean energy use for cooking and heating). Our results suggest that being a woman working in agriculture and being a female farmer reduces the likelihood of using clean energy for cooking, as well as for cooking and heating combined. In contrast, being a female agricultural labourer has a positive and statistically significant impact (at the 1 per cent level) on clean energy use for cooking, and a positive but not statistically significant impact on clean energy use for both cooking and heating. We contest earlier policy conclusions that suggest promoting off-farm employment to encourage the adoption of clean energy. Women's employment decisions should be left to them, with energy policies being neutral to their employment status. The efforts to encourage employment (i.e. free transport for women) are crucial; however, a direct focus on clean energy policies would better reduce health risks from non-clean energy use
Valorization of aluminum-silica-based industrial solid waste to high quality ceramic proppants: waste sources and design strategies
No full textAs the industrial economy continues to grow, the accumulation of industrial solid waste has increased significantly, consuming large land areas and posing serious threats to ecosystems. In response to the growing emphasis on green production, the comprehensive utilization of industrial solid waste has become critically important. Simultaneously, high-grade bauxite—a key raw material for ceramic proppants used in oil and gas field development—is experiencing increasing scarcity. Certain industrial solid wastes are rich in Al2O3 and SiO2 and have a chemical composition similar to that of high-grade bauxite, presenting promising opportunities for the production of ceramic proppants. This review focuses on the state-of-the-art methods for preparing ceramic proppants from aluminum-silica-based industrial solid waste (ASISW). First, the potential for utilizing ASISW in ceramic proppant manufacturing is evaluated. Second, the suitability of ASISW for this purpose is analyzed. Next, the current status of commercializing waste-based ceramic proppants is assessed. Finally, the existing challenges and future research directions are discussed. This research not only promotes the efficient utilization of industrial waste and contributes to environmental sustainability but also reduces production costs for ceramic proppants, providing a novel technical pathway for their manufacturing
Managing the complexities of providing doctoral supervision for colleagues in the academy
No full textThe pursuit of a doctoral qualification is a high-risk strategy which is undertaken for various reasons including improving career prospects, personal development, professional competence and intrinsic interest in a discipline area. Higher education institutions are increasingly expecting academics to either have a doctoral qualification or to be enrolled in a doctoral program as a condition of their employment. Subsequently, academic staff who are encouraged to enrol in doctoral programs are often supervised by colleagues at the same institution. Although there is extensive research on how universities manage the supervisor/doctoral candidate process and the importance of this relationship, there has never been a commensurate interest in exploring doctoral supervision provided by colleagues located at the same university as a distinct subgroup. This is further complicated by the various status and working conditions of doctoral candidates across the Higher Education system. The gap that exists in the literature is unusual given that it has the potential to be one of the most complex and vulnerable of doctoral supervision arrangements, a situation exacerbated by increasing pressures on the higher education sector inherent in the global neo-liberal climate and exacerbated by COVID-19. This paper explores the complexity of providing doctoral supervision for colleagues through in-depth interviews with doctoral supervisors from two universities. The findings identified numerous challenges, notably the lack of clarity over roles, communication break-down, and workplace politics. This paper provides a series of recommendations to assist universities to effectively manage the colleague doctoral supervision process
Ambidextrous management strategies in the tourism industry: a systematic literature review
Full text linkPurpose
This study investigates how ambidextrous management strategies, defined as the simultaneous pursuit of exploration and exploitation, impact organizational innovation and operational efficiency in the tourism sector. It synthesizes existing literature and proposes a future research agenda that expands the scope of ambidexterity beyond organizational strategy to include individual, technological, and contextual dimensions.
Design/methodology/approach
A systematic literature review (SLR) was conducted following PRISMA guidelines, analyzing 73 peer-reviewed articles from Scopus, Web of Science, and Google Scholar. The review identifies thematic clusters and synthesizes findings across organizational, individual, technological, and contextual domains.
Findings
Ambidextrous management strategies enhance both innovation and efficiency in tourism organizations, particularly when supported by digital transformation and knowledge management. Six thematic clusters were identified: organizational resilience, individual ambidexterity, knowledge ambidexterity, family business dynamics, digital technology adoption, and multi-dimensional service interactions. A conceptual framework is proposed to guide future research, emphasizing the need to explore ambidexterity at micro-foundational levels and across diverse tourism contexts.
Research limitations/implications
The study is limited to published literature, excluding industry reports and practitioner insights, which may affect practical applicability. Regional underrepresentation, particularly from Africa and Latin America, constrains generalizability. Future research should incorporate diverse geographical contexts and longitudinal designs to capture the dynamic nature of ambidextrous management in global tourism.
Practical implications
Tourism businesses should invest in ambidextrous capacity-building programs, integrate digital platforms for real-time decision-making, and balance operational efficiency with innovation. These strategies can enhance resilience and competitiveness, particularly for SMEs and family-run enterprises.
Originality/value
This paper offers a comprehensive synthesis of ambidextrous management in tourism, bridging fragmented literature and highlighting underexplored areas such as individual-level ambidexterity, digital technologies, and service innovation. It provides actionable insights for researchers and practitioners seeking to build resilient and innovative tourism enterprises
Impact of environmental policies, oil market dynamics, and R&D on renewable energy generation, consumption, and transition
No full textThe transition to renewable energy is a global imperative for achieving sustainable development and mitigating climate change. However, the pace of this transition is often challenged by the complex interplay of environmental policies, volatile oil market dynamics, and research and development (R&D). Utilizing a panel dataset from 1990 to 2020, we employ a fully modified ordinary least squares (FMOLS) technique to examine how these factors affect renewable energy generation, consumption, and comprehensive energy transition in G10 countries. The study’s major findings reveal that global climate policy uncertainties increase renewable energy consumption and accelerate the energy transition but hinder renewable energy generation. Domestic stringent environmental policies promote renewable energy consumption and transition, and are associated with a decline in generation. Higher oil supply negatively impacts energy consumption, generation, and transition, while oil price fluctuations positively affect renewable energy consumption but negatively affect its generation. Rising aggregate demand is found to reduce both renewable energy consumption and the pace of energy transition. R&D supports energy consumption, generation, and transition. The study concludes that a balanced approach, combining stringent adaptable environmental policies, economic stability, and innovation-driven R&D, is critical for a successful energy transition. Policymakers should focus on creating a supportive framework that includes incentives for R&D, demand-side subsidies, and flexible environmental standards to strengthen the renewable energy transition