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This study aims to comprehensively investigate the electron beam powder bed fusion (EB-PBF) process for copper, offering validated estimations of melt pool temperature and morphology through numerical and analytical approaches. This work also assesses how process parameters influence the temperature fluctuations and the morphological changes of the melt pool.

Two distinct methods, an analytical model and a numerical simulation, were used to assess temperature profiles, melt pool morphology and associated heat transfer mechanisms, including conduction and keyhole mode. The analytical model considers conduction as the dominant heat transfer mechanism; the numerical model also includes convection and radiation, incorporating specific parameters such as beam power, scan speed, thermophysical material properties and powder interactions.

Both the analytical model and numerical simulations are highly correlated. Results indicated that the analytical model, emphasising material conduction, exhibited exceptional precision, although at substantially reduced cost. Statistical analysis of numerical outcomes underscored the substantial impact of beam power and scan speed on melt pool morphology and temperature in EB-PBF of copper.

This numerical simulation of copper in EB-PBF is the first high-fidelity model to consider the interaction between powder and substrate comprehensively. It accurately captures material properties, powder size distribution, thermal dynamics (including heat transfer between powder and substrate), phase changes and fluid dynamics. The model also integrates advanced computational methods such as computational fluid dynamics and discrete element method. The proposed model and simulation offer a valuable predictive tool for melt pool temperature, heat transfer processes and morphology. These insights are critical for ensuring the bonding quality of subsequent layers and, consequently, influencing the overall quality of the printed parts.

This study aims to explore various conceptions of global citizenship education (GCE) and pedagogies among frontline Chinese Hong Kong secondary school teachers under the onset of a new political climate of conservative nationalism.

It utilised interview findings with a purposive sample of about 22 experienced secondary school teachers in 2019, which was shortly before the city was caught in huge waves of protests. Interviewees come from different demographics, such as subsidy types of schools and school sponsoring bodies and admit students of different socio-economic status and academic capabilities.

The findings reveal both liberal and nationalistic orientations on knowledge and values of GCE, including sustainability, in recent school education, and the use of discussion and experiential learning for teaching GCE.

A conceptual framework is developed for further research on teaching GCE in different cultural contexts. Developing pedagogies to instil in learners the values, attitudes and behaviours that support responsible global citizenship should become an international research agenda.

The analysis offers insightful views on what, why and how these teachers teach GCE. The authors also construct a framework of teachers' values and teaching beliefs that cultivate global citizens based on the research findings. This framework can inform school leaders, curriculum planners and teacher trainers in developing a more substantial pedagogical framework for GCE.

This study aims to investigate the impact of news quality on users’ risk perceptions toward online news and its subsequent influence on perceived believability and user engagement in sharing news. Additionally, we explore the moderating effects of fake news awareness and social tie variety.

Drawing upon the social amplification of risk framework, this study investigates the relationship between news quality and users’ news-sharing behaviors, along with its underlying mechanism. An online questionnaire involving 399 eligible participants was employed for hypotheses testing, and the structural equation model served as the main analytical method.

The influence of news quality on users’ news-sharing behavior is sequentially mediated by risk perception and perceived believability. Individuals with a heightened awareness of fake news or a diverse social tie are more inclined to perceive greater risks associated with news-sharing behavior and question news authenticity.

This study contributes to the existing literature on users’ news-sharing behaviors by examining the influence of risk perception on the relationship between news quality, perceived believability and users’ news-sharing behavior. Additionally, it explores the moderating effects of fake news awareness and social tie variety. Our findings offer valuable insights into comprehending user inclinations towards news sharing and mitigating the dissemination of fake news.

The purpose of this paper is to examine the relationship between Chinese female executives and corporate risk-taking the contingencies that affect this relationship.

A integrated theoretical framework was established, on the basis of which theoretical hypotheses were developed and tested using 20,315 firm-year observations collected from China’s publicly listed companies during the period 2005–2020. Data were collected from China's Shanghai and Shenzhen A-share Stock Exchanges and analyzed using a moderated regression analysis, PSM, 2SLS-IV and PSM-DID model.

The empirical results indicate a negative effect of the ratio of female executives in top management team on corporate risk-taking, and this negative effect can be weakened by the social capital of board directors and the regional marketization.

The paper contributes to research on the relationship between female executives and risk-taking by considering the effect of eastern culture on female executives’ business decision-making and examining the moderating factors inside and outside the firm.

The paper illustrates the active steps that corporations can take to enhance female executives' willingness and capacity to take firm-related risks so as to improve the firm value in the long run.

The paper explores how Chinese culture and Chinese traditional value affect female executives’ decision-making on risky projects or uncertain investments. In addition, our study for the first time examines the moderating effect of board social capital as an internal factor and marketization as an external one on the relationship between Chinese female executives and corporate risk taking. The research examines the gender inequality in the work and competitive environment facing female executives in the areas of different marketization level, which would affect female executives’ cognition and motivation in corporate risk taking.

This paper aims to address the challenges faced by the cheese industry, particularly concerning the preservation and transfer of traditional cheesemaking knowledge. It emphasises the need for innovative solutions in sustainably managing knowledge and skills amidst changing demographic and technological landscapes.

Our approach consists of developing and implementing a digital tool, the cheese eK-Book, which is designed to capture, structure and disseminate cheesemaking knowledge. This tool is based on a semantic network and is accessible via smartphones and tablets and aims to facilitate continuous learning, knowledge transfer and collaboration across diverse stakeholders in the cheese production sector.

The study highlights several critical findings. Traditional cheesemaking knowledge is currently at risk due to a number of factors, including the ageing of skilled workers, a lack of succession planning and pressures from globalisation and industrialisation. The European dairy sector is evolving towards more specialised and automated production, requiring a skilled workforce capable of adapting to these changes. There is a significant gap between traditional cheese makers and research institutions, hindering the adoption of new technologies and best practices. The cheese eK-Book offers a promising solution to these challenges by preserving knowledge, supporting continuous learning and enhancing collaboration between industry stakeholders and educational/research institutions. The tool facilitates access to scientific knowledge, promotes work–life balance by offering a range of flexible learning opportunities and supports tailored training programmes based on individual users’ needs.

This article contributes original insights by proposing a comprehensive digital solution tailored to the specific, current needs of the cheese industry. By integrating modern technology with traditional knowledge, the cheese eK-Book not only preserves expertise but also fosters innovation and sustainability within the sector. It bridges the gap between practical cheesemaking skills and contemporary scientific understanding, addressing critical challenges such as knowledge retention, succession planning and workforce development in a rapidly evolving industry landscape. The strength of the Cheese eK-Book lies in its capacity to communicate knowledge, traditions and teachings across generations. This transfer of knowledge and skills plays a crucial role in preserving heritage and fostering connections across different generations within a community.

This systematic literature review paper critically examines the effectiveness of screencast feedback compared with text feedback in promoting student learning outcomes in online higher education. This paper aims to contribute to the ongoing discussion surrounding feedback modalities and their impact on online learning environments.

This paper adopts a systematic review approach to synthesise and analyse existing studies investigating the use of screencast feedback in online higher education settings. A comprehensive search and selection process was employed to identify relevant literature. The selected studies were then analysed for their methodologies, findings and implications. This paper seeks to provide an overview of the current state of research, highlighting the benefits, challenges and potential impacts of screencast feedback on student learning outcomes.

The findings of this paper suggest that while there is a positive perception of screencast feedback among students and instructors, drawing definitive conclusions about its superiority over text feedback remains at the very beginning. Students generally appreciate the personalised, supportive and engaging nature of screencast feedback, particularly within the online learning context. However, challenges such as technical barriers and potential workload implications for instructors are also noted. Further empirical research is needed to comprehensively evaluate the comparative efficacy of screencast feedback, considering factors like online engagement, digital literacy and the impact on diverse student populations.

This review underscores the acute necessity for expansive and meticulously designed studies that can provide conclusive insights into the authentic potential of screencast feedback and its resonance within the unique landscape of online learning. Through rigorous inquiry, educators can discern the optimal strategies for harnessing the advantages of screencast feedback to enhance student learning outcomes, aligning harmoniously with the dynamics of virtual classrooms.

Screencast feedback emerges as a promising avenue to foster meaningful connections between instructors and learners. The review highlights that screencast feedback engenders a more dialogic interaction between lecturers and students, resulting in personalised, supportive and engaging feedback experiences.

The systematic review conducted underscores the positive reception of screencast feedback from both students and lecturers in this context. The findings are consistent with the principles of social constructivist theory, suggesting that the interactive and personalised nature of screencast feedback facilitates a richer educational experience for students, even within the confines of virtual classrooms (Vygotsky, 1978).

This innovative blend of methodologies contributes new insights that can inform educational practices and pedagogical strategies in online learning environments.

This paper examines the moderating role of firms’ litigation environment on the association between gender diversity and financial reporting quality.

This study draws on a sample of US firms to examine the moderating role of firms’ litigation environment on the association between gender diversity and financial reporting quality. Firm-specific financial data come from Compustat. To measure the firms’ litigation environment, we use state-level datasets from the Lawsuit Climate Survey conducted for the US Chamber Institute for Legal Reform by the Harris Poll.

Findings suggest that firm litigation environment moderates gender diversity, as defined by female members on the board to subdue our first proxy for financial reporting quality (accruals-based earnings management), but our second proxy for financial reporting quality (real-activities manipulations) increases in a firm’s litigation environment. To the extent that our results hold after controlling for firms’ reputation indicates that female members on the board are sensitive to reputational loss and protect firms’ reputation in a litigation environment.

The study is based on a specific country, limiting the generalizability of the findings.

The findings provide support for promoters and advocates of gender diversity in corporate boards. Specifically, it shows the importance of gender diversity policies in business and society.

This study is the first to examine the moderating role of firms’ litigation environment on the association between gender diversity and financial reporting quality. The study provides novel evidence and shows that the litigation environment moderates gender diversity to improve financial reporting quality in the short-term (by decreasing accruals manipulation). In firms’ litigation environment, when female members on the board are restrained from engaging in accruals earnings management, they shift to value-destroying and costly real activities to maintain reputation and firm performance. To the extent that we control for the potential effects of firms’ reputation and financial performance, our findings suggest that ethical concerns are likely to drive female members on the board to produce high-quality financial reports.

Recent graduates are an important source of talent among hired employees as they bring up-to-date knowledge into the organisation. Yet, organisations have difficulties retaining them and recognizing factors influencing their voluntary turnover, which may differ from those influencing voluntary turnover among tenured employees. For example, graduate employees need to adjust to a completely new context and develop their identity as professionals. Therefore, the current study presents a review of the factors influencing newcomers’ voluntary turnover and turnover intentions.

To explore the factors influencing the turnover intentions and behaviour of recently hired employees, we conducted a literature review of 57 articles from several databases for different disciplines.

Our review identifies factors that influence turnover intentions and behaviour among recently hired employees and presents them in a model. The model identifies five categories of factors influencing turnover intentions and behaviour: pre-joining expectations, person-environment fit, the role of the supervisor, human resource (HR) practices and person-related factors.

The model enhances the understanding of why new employees leave an organisation and shows how supervisors and HR practices play an important role in reducing voluntary turnover among newly hired employees. The article concludes with practical suggestions on how to retain these employees.

While employee turnover has been studied extensively, this review focuses specifically on factors that influence the turnover intentions and behaviour of newcomers. We present these factors in a model that can be used to inform managerial practices to reduce turnover among newcomers.

This study aims to investigate the potential use of potato peel extracts as antibacterial finishes for cotton fabrics against Staphylococcus aureus and Escherichia coli. Potato peels are abundant as waste and provide a natural, cheaper and sustainable alternative means of preventing the spread of bacterial infections on cotton fabric.

This research included the characterization of potato peel extracts, application of the extract onto cotton fabric and efficacy testing of the treated cotton fabric against bacteria. Phytochemical screening, agar well diffusion antibacterial test, minimum inhibitory concentration and Fourier transform infrared (FTIR) tests were used to characterize the extract. Antibacterial efficacy of the treated fabric was determined qualitatively using the disc diffusion assay and quantitatively using the bacteria reduction test.

Phytochemical screening confirmed the presence of several secondary metabolites including phenols and flavonoids. Antibacterial tests revealed a positive response in Escherichia coli and Staphylococcus aureus with a zone of inhibition of 6.50 mm and 5.60 mm, respectively. Additional peaks on the FTIR spectroscopy confirmed the presence of potato peel extract on the treated cotton fabric. The treated cotton fabrics showed efficacy against Staphylococcus aureus and Escherichia coli up to 20 washes.

This study introduced the application of potato peel extracts onto cotton fabrics and assessment of the antibacterial properties before and after washing. Results of this study suggest that potato peel extracts can be used as an organic eco-friendly antibacterial finish for cotton fabrics.