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1 – 7 of 7Thi Vinh Tran Nguyen and Seng-Su Tsang
The current study proposes a moderated mediation model to predict work-from-home engagement during an emergency such as the coronavirus disease 2019 (COVID-19) pandemic based on…
Abstract
Purpose
The current study proposes a moderated mediation model to predict work-from-home engagement during an emergency such as the coronavirus disease 2019 (COVID-19) pandemic based on the integration of well-known concepts, including inclusive leadership, organizational support and perceived risk theory.
Design/methodology/approach
An online questionnaire on the Google Forms platform was designed and distributed to Vietnamese employees using a convenience sampling method. A total of 794 valid questionnaires were used for data analysis. Partial least squares structural equation modeling (PLS-SEM) was employed to test the proposed model and hypotheses. The instrument's validity and reliability were tested and ensured.
Findings
The study found that inclusive leadership has direct and indirect effects on work-from-home engagement through the separate and serial mediating roles of perceived organizational support and employee motivation. The present study also revealed that the effects of perceived organizational support and employee motivation on work-from-home engagement are strengthened by employee risk perception. Moreover, the study showed that perceived organizational support and employee motivation performed the lowest of the four elements that were considered, while the importance of these two factors was the highest.
Practical implications
These findings suggest that in an emergency such as COVID-19, contextual factors should be given more attention. Based on these findings, several theoretical and practical implications for human resource management are highlighted.
Originality/value
By integrating inclusive leadership, organizational support and perceived risk theory to explore employees' engagement in working from home during an emergency, the present study demonstrated that in addition to traditional factors, leadership and contextual factors should be considered for studies on working from home in an emergency such as the COVID-19 pandemic. The present study established that these factors might encourage employees' work-from-home engagement.
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A deteriorating security situation and an increased need for defence equipment calls for new forms of collaboration between Armed Forces and the defence industry. This paper aims…
Abstract
Purpose
A deteriorating security situation and an increased need for defence equipment calls for new forms of collaboration between Armed Forces and the defence industry. This paper aims to investigate the ways in which the accelerating demand for increased security of supply of equipment and supplies to the Armed Forces requires adaptability in the procurement process that is governed by laws on public procurement (PP).
Design/methodology/approach
This paper is based on a review of current literature as well as empirical data obtained through interviews with representatives from the Swedish Defence Materiel Administration and the Swedish defence industry.
Findings
Collaboration with the globalized defence industry requires new approaches, where the PP rules make procurement of a safe supply of defence equipment difficult.
Research limitations/implications
The study's empirical data and findings are based on the Swedish context. In order to draw more general conclusions in a defence context, the study should be expanded to cover more nations.
Practical implications
The findings will enable the defence industry and the procurement authorizations to better understand the requirements of Armed Forces, and how to cooperate under applicable legal and regulatory requirements.
Originality/value
The paper extends the extant body of academic knowledge of the security of supply into the defence sector. It serves as a first step towards articulating a call for new approaches to collaboration in defence supply chains.
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Simplice Asongu, Barbara Mensah and Judith C.M. Ngoungou
The study aims to complement extant literature by assessing linkages between financial development, external flows and CO2 emissions in 27 sub-Saharan African countries for the…
Abstract
Purpose
The study aims to complement extant literature by assessing linkages between financial development, external flows and CO2 emissions in 27 sub-Saharan African countries for the period 2002 to 2018.
Design/methodology/approach
The empirical evidence is based on interactive quantile regressions and external flows consist of remittances, foreign aid, trade openness and foreign investment.
Findings
The findings show minimum levels of external flows that should be reached in order for the interaction between external flows and financial development to promote environmental sustainability in terms of reducing CO2 emissions. The minimum thresholds are critical levels of external flows that should be reached before financial development promotes environmental sustainability.
Research limitations/implications
Policy implications – The disclosed external flow (i.e. FDI, foreign aid, trade and remittances) thresholds are actionable policy thresholds that the government can act upon in order to influence environmental sustainability by means of financial development. Theoretical implications – The findings below the external flow thresholds are consistent with the dependency theory in that external flows are harmful to socio-economic progress and environmental sustainability. When external flows are consolidated to the established critical masses or thresholds in the long run, the corresponding findings are in line with the extant neoclassical and endogenous growth theories, not least, because in the long run, external flows are associated with technological progress and adoption of stronger environmental legislation at the domestic level which are worthwhile in promoting environmental performance.
Practical implications
To reach the minimum trade and FDI levels that are worthwhile for the promotion of environmental sustainability, corporations should set targets on exports and imports as well as foreign investment levels that they have to attain in contributing to the national target of external flows needed to reduce CO2 emissions. Such trade and FDI targets should be set in industries of various economic sectors.
Originality/value
The study complements the extant literature by assessing how external flows interact with financial development to influence CO2 emissions.
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Paula M. Hernandez-Diaz, Jorge-Andrés Polanco, Sergio Andrés Osuna-Ramírez, Erika Jaillier-Castrillón, Tatiana Molina-Velasquez and Manuela Escobar-Sierra
This paper aims to find the incidence of university sustainability, as sustainability practices, in university performance at private universities.
Abstract
Purpose
This paper aims to find the incidence of university sustainability, as sustainability practices, in university performance at private universities.
Design/methodology/approach
Quantitative research using structural equation modelling. Data collection and analysis followed sustainability and performance scales from previous research. The scales were validated by surveying students, teachers and administrative staff of five private universities in Medellin, Colombia. The responses (i.e. 5,344 useful answers) were collected between April 2019 and December 2020 and analysed using the Smart partial least square (PLS) software and the PLS calculation methodology.
Findings
The results confirmed the reliability and validity of the sustainability and performance university measurement models and validated the dimensions proposed to determine sustainability and performance holistically in private universities. The results confirmed that universities implementing sustainability holistically in their system positively impact their performance as higher education institutions. The university sustainability is forecasting the University Performance in about 60% of the universities analysed, with a considerable contribution from sustainability in outreach and strategic management.
Research limitations/implications
This study was cross-sectional and empirically validated the model of sustainability and performance at five private universities in a single period and territory. A broader validation from longitudinal studies considering other universities in Colombia and Latin America is suggested to understand local and regional trends better.
Practical implications
Results provided a model for better understanding the incidence of sustainability in performance holistically at private universities in developing countries such as Colombia. In addition, the proposed dimensions and model could help regional decision-making on higher education.
Originality/value
To the best of the authors’ knowledge, this paper is one of the first attempts relating a structural equation model and inter-university research on the incidence of sustainability in private university performance. This work contributes to a local consensus on sustainability and performance models at private universities. Furthermore, from this research emerged a joint policy framework for incorporating sustainability holistically and regionally as an effective strategy for universities and their commitment to sustainable development.
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Thomas E. Jones, Lindsay Mack and Oscar A. Gómez
As UN’s sustainable development goals (SDGs) are integrated across Asia-Pacific Higher Education Institutes (HEIs), the purpose of this descriptive and exploratory study is to…
Abstract
Purpose
As UN’s sustainable development goals (SDGs) are integrated across Asia-Pacific Higher Education Institutes (HEIs), the purpose of this descriptive and exploratory study is to investigate undergraduates’ own self-stated commitment to the SDGs and their perceived feasibility by the 2030 target.
Design/methodology/approach
A mixed-methodology approach covered quantitative and qualitative approaches facilitated by purposive selection of an Asia-Pacific HEI via a Japanese liberal arts college where a questionnaire survey was administered in Autumn 2021. Responses were monitored from freshmen students in twin courses within the same major (introduction to “Environment” and “Development” studies, respectively; n = 177) that both integrated SDGs within their respective curricula.
Findings
Students in both classes rated the SDGs as a useful learning tool but were sceptical of their feasibility by 2030. A self-stated commitment was high, especially among environment studies students. Multiple regression was run to predict SDGs commitment from gender, major, perceived SDGs’ usefulness and feasibility. These variables partially predicted SDGs commitment but only gender and major variables added statistical significance. Moreover, the same variables were less equivocal in terms of predicting the self-stated belief that the SDGs could be achieved by 2030.
Practical implications
The findings can inform instructors of students’ perceptions towards SDGs. Significant differences raise academic and applied discussion points, such as how to engage male students, for example, by setting up sustainability “business case” practicums.
Originality/value
As global HEIs grapple with effective ways to vertically integrate SDGs into a university’s curriculum, students’ opinions are often underrepresented. This paper’s originality and value address these gaps by exploring a holistic student-centric perspective on SDGs in the context of commitment. This paper also has implications for more effective cross-curricula integration of the SDGs.
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Md Motiur Rahaman, Nirmalendu Biswas, Apurba Kumar Santra and Nirmal K. Manna
This study aims to delve into the coupled mixed convective heat transport process within a grooved channel cavity using CuO-water nanofluid and an inclined magnetic field. The…
Abstract
Purpose
This study aims to delve into the coupled mixed convective heat transport process within a grooved channel cavity using CuO-water nanofluid and an inclined magnetic field. The cavity undergoes isothermal heating from the bottom, with variations in the positions of heated walls across the grooved channel. The aim is to assess the impact of heater positions on thermal performance and identify the most effective configuration.
Design/methodology/approach
Numerical solutions to the evolved transport equations are obtained using a finite volume method-based indigenous solver. The dimensionless parameters of Reynolds number (1 ≤ Re ≤ 500), Richardson number (0.1 ≤ Ri ≤ 100), Hartmann number (0 ≤ Ha ≤ 70) and magnetic field inclination angle (0° ≤ γ ≤ 180°) are considered. The solved variables generate both local and global variables after discretization using the semi-implicit method for pressure linked equations algorithm on nonuniform grids.
Findings
The study reveals that optimal heat transfer occurs when the heater is positioned at the right corner of the grooved cavity. Heat transfer augmentation ranges from 0.5% to 168.53% for Re = 50 to 300 compared to the bottom-heated case. The magnetic field’s orientation significantly influences the average heat transfer, initially rising and then declining with increasing inclination angle. Overall, this analysis underscores the effectiveness of heater positions in achieving superior thermal performance in a grooved channel cavity.
Research limitations/implications
This concept can be extended to explore enhanced thermal performance under various thermal boundary conditions, considering wall curvature effects, different geometry orientations and the presence of porous structures, either numerically or experimentally.
Practical implications
The findings are applicable across diverse fields, including biomedical systems, heat exchanging devices, electronic cooling systems, food processing, drying processes, crystallization, mixing processes and beyond.
Originality/value
This work provides a novel exploration of CuO-water nanofluid flow in mixed convection within a grooved channel cavity under the influence of an inclined magnetic field. The influence of different heater positions on thermomagnetic convection in such a cavity has not been extensively investigated before, contributing to the originality and value of this research.
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Leila Nikravan, Setayesh Zamanpour and Seyyed Mohammad Ali Noori
The purpose of this paper is to provide an overview of the antimicrobial and antioxidant properties of postbiotics and the use of postbiotics to increase the shelf life and…
Abstract
Purpose
The purpose of this paper is to provide an overview of the antimicrobial and antioxidant properties of postbiotics and the use of postbiotics to increase the shelf life and quality of food.
Design/methodology/approach
In this review paper, all articles from five electronic databases containing Google Scholar, Web of Science, PubMed, Scopus and Science Direct were considered and selected according to the purpose of the study.
Findings
In addition to improving food safety and increasing its shelf life, natural food preservation using biological preservatives also has a positive effect on improving consumer health. As a result, protection using natural antioxidants and antimicrobial agents seems essential. Postbiotics, having favorable characteristics such as nontoxicity, long shelf life and ease of standardization and transportation, are known as suitable antioxidant and antimicrobial, and there is an interest in making antioxidant and antimicrobial active films containing postbiotics to delay spoilage, increase the shelf life of perishable foods without changing their sensory characteristics.
Originality/value
Postbiotic refers to all soluble factors that are either secreted from living probiotic cells or released after cell lysis. These compounds include enzymes, peptides, polysaccharides, organic acids, teichoic acids and cell surface proteins, and their effects have been proven to improve some human and animal diseases. Probiotic bacteria must survive unfavorable conditions such as processing, storage, distribution, preparation and the digestive system to exert their health-giving effects, whereas their metabolites (postbiotics) have overcome these adverse conditions well and may be a good substitute for probiotics.
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