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Job resources are positively related to work engagement within the motivational process of the job demands–resources model (JD–R). Little is known about mediating mechanisms within that process. The purpose of this paper is to examine self-efficacy and work–privacy conflict as mediators of the relationship between social support and work engagement in a sample of police officers.

In total, 811 German police officers completed a cross-sectional online survey that assessed social support by supervisors and co-workers, work–privacy conflict, self-efficacy and work engagement. Structural equation modeling was conducted.

Self-efficacy and work–privacy conflict partially mediated the relationship between social support and work engagement. The direct effect of social support and work engagement was confirmed, too.

Health promotion approaches in police work should foster social support by supervisors and co-workers. Social support eases challenges of work–life balance and self-efficacy and promotes police officers’ work engagement.

The findings validate the motivational process of the JD-R model in a sample of police officers. Job resources and personal resources are interrelated in the prediction of work engagement. Moreover, job resources facilitate dealing with specific job demands, which promotes work engagement, too.

This paper aims to gain insights into the paradoxical tensions emerging from circular business model innovation (CBMI) and how to overcome them by developing a theoretical framework drawing on two theoretical streams: firstly, the paradox theory for shedding light on the often “invisible” contradictions generated by the implementation of circular economy (CE) principles in business model transformation; and secondly, the dynamic capability theory that can contribute to the investigation of how to manage these contradictions.

The study uses a longitudinal case study approach to gain an in-depth understanding of the transformation and challenges faced by an incumbent firm in adopting a circular business model. Qualitative research methods are used to explore the paradoxical tensions and dynamic capabilities involved in the process.

The study finds that incumbent firms face numerous challenges and paradoxical tensions in the CBMI process. These tensions arise from difficulties in implementing organizational changes, balancing competing priorities and managing conflicting goals. Dynamic capabilities are crucial in managing these tensions and facilitating the transition to a circular business model.

This paper contributes to the theoretical development of paradox theory by applying it to the new field of CBMI which is currently slightly investigated and responds to the call for studies looking at more fine-grained types of sustainable business models. The study adds to previous literature that how the firm handles paradoxes and tensions influences the pace and results of the process. If the firm becomes discouraged during the early stages of identifying new opportunities, the pace slows down, and the firm becomes hesitant to collaborate more with partners. Furthermore, the ability to capitalize on these opportunities is affected by these tensions and contradictions.

This paper contributes to the literature by empirically investigating the process of CBMI in incumbent firms. It fills the gap in existing research by examining the existence of paradoxical tensions in a real-life setting and exploring the role of dynamic capabilities in managing these tensions. The findings provide practical insights for firms seeking a transition towards a CE and highlight that the ability to sense the external context should be developed as the new business model entails a central role of external actors.

As few studies have explored the causal relationship between both the triple bottom line (TBL) of sustainability and the lean practices in higher education institutions (HEIs), the purpose of this paper is to analyze the relationships between lean practices and sustainable practices in Brazilian HEIs.

A survey was conducted with 454 public and private HEIs workers in Brazil. Confirmatory factor analysis and structural equations modeling were used for data analysis.

The results support the hypotheses of the study that HEI lean practices are positively related to environmental, economic and social practices in HEIs.

HEI managers must evaluate the use of lean practices in the organizational processes, to identify their weaknesses and to improve the aspects that influence a balanced TBL of sustainability practices.

The findings highlight the importance of leadership as a support for the workers, as a continuous improvement practice on a daily basis and a focus on the student as a basic principle of HEI success.

This article provides new measurement and structural models to analyze Lean thinking practices as the predictors of sustainability practices. The work could assist any HEI in prioritizing its strategies and actions and to contribute to excellence in decision-making. This study could contribute as a source of empirical data for transferability in other contexts for HEIs.

Urban scholars employ numerous sources to study early cities, including primary sources such as historical maps, literary accounts, tax records, and the like to help visualize cities in various periods. In recent years, a variety of artificial intelligence programs have been employed to not only create visual images of earlier cities, but also to allow audiences to negotiate city streets and enter buildings within the city. The Assassin's Creed series of video games created by Ubisoft place the game player in historical settings where the assassin (representing peace and free will) will battle against groups of foes (representing order and control). Assassin's Creed II is set in Florence at the end of the fifteenth century and has been praised for the visual reconstruction of the city. But how well can a computer game represent the Early Renaissance City?

The purpose of this paper was to promote the use of residual moringa seed powder (RMSP) for the enhancement of cereal-based products. RMSP is usually discarded after seed-oil extraction. This work also promotes zero-waste and rheological approaches.

In search of novel and sustainable food products with high nutritional value, cold-pressed Moringa oleifera Lam. seeds residue (RMSP) was used for incorporation in muffin formulations. Wheat flour was partially substituted (0%, 1%, 3%, 5%, 7% and 9%) by RMSP. Sodium (Na), calcium (Ca) and iron (Fe) contents were quantified through atomic absorption spectrometry; protein, through the Kjeldahl method followed by AACC Method 46–13.01; and, fat content, by a modified version of AACC Method 30–25.01a. Analysis of variance (ANOVA) and Tukey tests were performed to determine significant differences between formulations at 95% reliability using Minitab® software. Furthermore, simple viscosity studies of the dough mixture were carried in a Brookfield DV-III Ultra Rheometer; Matlab® curve-fitting tool was used for obtaining the best non-Newtonian equation that modeled experimental data. Subsequently, computational fluid dynamics (CFD) simulations of non-Newtonian fluids along a segmented pipe were carried out in Comsol Multiphysics® software to depict the importance of modeling non-Newtoning fluids for downstream processes.

RMSP significantly (p < 0.0001) increased protein and Fe content for the 7% and 9% formulations; it dramatically changed Na and Ca content in all formulations, while fat remained constant.

The development of this type of product is an opportunity for communities that grow and harvest moringa as well as for food industries which can take advantage of moringa by-products for several subsequent processing.

For the first time, it was found that dough formulations with RMSP presented a pseudo-plastic and thixotropic behavior. In addition, the use of lignocellulosic by-products such as RMSP incorporates an added value to food products. In this case, it was demonstrated that moringa seed residue enhanced nutritional value to muffins and provided coagulant/flocculant action, which is essential during dough preparation.

To do this, the authors carried out a systematic literature review to answer three questions: (RQ1) Which external pressures affect an FC and its suppliers in an MSC? (RQ2) What influences power relationships between an FC and its suppliers for MSC compliance? and (RQ3) Which governance mechanisms support an FC to achieve compliance for managing its MSC?

This research aims to identify how external pressures affect chain agents to achieve compliance and implement governance mechanisms and analyzes the influence of the power relationship between FC and their suppliers.

The results identify how external pressures from different stakeholders act on FC and FT and ST suppliers. A combination of contractual governance mechanisms (auditing, certification, assessment, code of conduct and monitoring) with relational ones (third-party, cooperation) is identified, facilitating compliance between agents. Furthermore, different power relationships (power position, level of resources and institutional distance) that influence the implementation of governance mechanisms are explored.

This article comprised only a systematic literature review and content analysis. Carrying out empirical research, covering the theme of this article, is the next step, which is being completed and will be discussed in due course in another publication.

The results can help professionals of the FC to understand their role in multi-tier supply chain (MSC), the external pressures exerted and the governance mechanisms that can be implemented to achieve compliance.

This article develops three relevant issues constantly addressed in MSC, which have not yet been combined to understand the management of multi-tier suppliers.

The study, within the Increasing Resilience of Cultural Heritage (ResCult) project, aims to support civil protection to prevent, lessen and mitigate disasters impacts on cultural heritage using a unique standardised-3D geographical information system (GIS), including both heritage and risk and hazard information.

A top-down approach, starting from existing standards (an INSPIRE extension integrated with other parts from the standardised and shared structure), was completed with a bottom-up integration according to current requirements for disaster prevention procedures and risk analyses. The results were validated and tested in case studies (differentiated concerning the hazard and type of protected heritage) and refined during user forums.

Besides the ensuing reusable database structure, the filling with case studies data underlined the tough challenges and allowed proposing a sample of workflows and possible guidelines. The interfaces are provided to use the obtained knowledge base.

The increasing number of natural disasters could severely damage the cultural heritage, causing permanent damage to movable and immovable assets and tangible and intangible heritage. The study provides an original tool properly relating the (spatial) information regarding cultural heritage and the risk factors in a unique archive as a standard-based European tool to cope with these frequent losses, preventing risk.

After reading and analyzing the case study, the students would be able to understand the critical role of the International Financial Reporting Standards (IFRS)-compliant accounting principles in facilitating strategic alliances between publicly traded international corporations and emerging companies in informal business environments, design the company’s accounting system to ensure the application of the accounting standards contained in IFRS and understand the accounting process for properly recording a company’s transactions.

This case study deals with Giulia’s decision to take on the proposal of a conglomerate to acquire a 45% stake in her travel agency, Know Cuba First Travel Agency (KCF). Giulia was an Italian entrepreneur based in Havana, Cuba. She has dealt with informal business practices in the Cuban tourism industry. However, Foreign Investments Ltd., a publicly listed company, needs formal accounting if investing in the venture. If Giulia agrees with the proposal, an accounting information system would have to be implemented to comply with the investor’s requirements.

This case study is suitable for financial accounting undergraduate courses.

Teaching notes are available for educators only.

CSS 1: Accounting and finance.