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Nowadays, circular concrete-filled tubular (CFT) columns are largely used in construction because of structural and architectural advantages such as high load bearing capacity and aesthetic appearance. The behavior of CFT columns at ambient and high temperatures is good; however, there are problems related to their behavior in fire when inserted in a real building structure, as for example, the influence of the restraining to thermal elongation that have to be addressed in order to improve their design. This study aims to present the results of a numerical study on the behavior of CFT columns with restrained thermal elongation in case of fire.

The parameters tested in the numerical simulations included column slenderness, load level, surrounding structure stiffness and steel reinforcement ratio. A sequentially coupled thermal stress analysis was carried out. The numerical model was validated with results from a large series of fire resistance tests carried out at Coimbra University, in Portugal. From these, simple equations to evaluate CFT column critical times were derived.

The results were also compared with the ones obtained from the current EN 1994-1-2:2005 simplified calculation and tabulated data methods. For the analyzed cases, it was verified that, while the simplified calculation method led to safe results on the evaluation of the fire resistance of CFT columns with restrained thermal elongation, the tabulated data method led, in certain cases, to unsafe results. This research showed also lower critical times than those from literature on similar type of columns.

The influence of the stiffness of the surrounding structure on the behavior of CFT columns subjected to fire was not yet clear in the major part of the studies already carried out. So, this paper has the originality to consider this parameter in the numerical simulations of this type of columns.

The significance of event tourism in destination development underscores the importance of assessing the quality of events and their sustainability for competitiveness. This study investigates tourists’ perceptions of service quality and sustainability at the “Biggest São João in the World” event in 2023. Employing a quantitative approach, we conducted field research using questionnaires based on the Tourqual model, integrating sustainability indicators to address environmental impacts associated with such events. Data collection took place between June and July 2023, with a non-probabilistic convenience sample of 709 visitors. Descriptive statistics were applied to the 2022 survey data (397 respondents), on the 2023 data (709 respondents). Results reveal that the event’s diverse activities received the highest average rating at 4.03, while the use of sustainable transport during the event garnered the lowest rating at 1.93. This emphasizes the need for event organizers to implement continuous improvement plans, focusing particularly on areas with critical evaluations to enhance visitor satisfaction. This study’s originality and innovative approach contribute valuable insights for event managers and researchers and promote both local development and environmental awareness.

This paper’s main aim is to check the mediating effect of supply chain memory in the relationship between using digital technologies and both supply chain resilience and robustness. In addition, the impact of the COVID-19 disruption was tested as a moderator of the impact of supply chain memory on supply chain resilience and robustness.

Altogether, 257 supply chain managers answered the questionnaire, and data were analysed through structural equation modelling.

This paper contributes to theory and practice by demonstrating that the experience, familiarity and knowledge to deal with disruptions partially mediate the relationship between digital technologies, resilience and robustness. Moreover, our results show that memory is less efficient for the supply chain to maintain an acceptable level of performance in case of a new extreme disruptive event like COVID-19. The full model was able to explain 36.90% of supply chain memory, 41.58% of supply chain resilience and 46.21% of supply chain robustness.

The study helps to understand how to develop supply chain memory, positioning digital technologies as an antecedent of it. The impact of supply chain memory on supply chain resilience and robustness is proved. Knowledge about the impact of industry 4.0 technologies on disruption management is quantitatively improved. It demonstrates that digital technologies impact resilience and robustness mainly through supply chain memory. The study proves that supply chain memory is less efficient for the chain remains effective when a non-routine disruptive event occurs, but it is still imperative to recover from it.

Managerial discourses tend to portray work-related mobility practices in a positive light, presenting mobility assignments as a place of stimulus and differentiation. A conception of mobility as an opportunity, may contrast, in specific economies and business settings, with lived personal experiences. This article reports the results of a three-year study, aimed to question how multinational companies (MNCs) located in a small and developing European economy (Portugal) are building talent pools for expatriate assignments. Interaction effects, as proposed by the job demands-resources (JD-R) theory, are considered as lens to understand the interplay of company expatriate policies, willingness profiles and psychological contracts of expatriates. By using a Portuguese sample, the study examines whether prior findings in mature economies and consolidated MNCs can be generalized to less developed international business settings.

A three-year study, encompassing 24 expatriate cases observed in five multinational firms born or located in Portugal. Two techniques of empirical data collection were used: statistical sources and documental analysis and in-depth interviews. A total of 37 interviews were conducted, both in-person and remotely, of which 13 were with company managers and representatives, and 24 with expatriates (as defined and referred like this by the companies under study).

Heterogeneous company policies, ranging from juvenile, functionalist to more dynamic and flow-based approaches, are presented as qualifying resources of willingness levels and psychological contracts of expatriates. Observed interaction effects between policies, willingness and psychological contracts, empirically mirrored in three profiles (conformist, protean and disrupted expatriates) suggest that incentive effects (emanating from company policies) and job demand-resource balance, factored as terms of social and economic trade, are non-linear and asymmetric, influencing firm propensity to succeed while using international work to support company expansion goals. As job resources, expatriate policies are presented as operating as pull or push factors: functionalist HR approaches seem to act as push factors generating more conformist or compelled willingness profiles.

Generalization of study's outcomes has limitations. Future studies are encouraged to use comparative and longitudinal research designs. Furthermore, future research should include business expatriates with entry-level positions, and increase the number of interviewees, as results can also be considered as limited by sample size.

It is suggested that further strategic work is needed to present expatriation development value, formally screen and consider willingness level as selection criteria, and enlarge the pool (from internal to external) of candidates, in peripheral economic settings such as Portugal. A shift to more dynamic and job resource-dense policies are suggested as beneficial, as pathway to optimize social and economic value from expatriation assignments and work experiences.

By putting the interplay between macro and micro-level processes into perspective, the study provides empirical evidence on how company expatriate policies have come to promote unforeseen differentiation of employee willingness and psychological contracts at the heart of MNCs. This is particularly relevant in developing economies such as Portugal, challenging the need to build talent pools for international work assignments. Empirical data illustrating company policies interactive effects with different willingness profiles and psychological contracts of expatriates is provided.

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in the construction of hegemonies in SEA research in Brazil. In particular, we examine the role of hegemony in relation to the co-option of SEA literature and sustainability in the Brazilian context by the logic of development for economic growth in emerging economies. The methodological approach adopts a post-structural perspective that reflects Laclau and Mouffe’s discourse theory. The study employs a hermeneutical, rhetorical approach to understand and classify 352 Brazilian research articles on SEA. We employ Brown and Fraser’s (2006) categorizations of SEA literature to help in our analysis: the business case, the stakeholder–accountability approach, and the critical case. We argue that the business case is prominent in Brazilian studies. Second-stage analysis suggests that the major themes under discussion include measurement, consulting, and descriptive approach. We argue that these themes illustrate the degree of influence of the hegemonic politics relevant to emerging economics, as these themes predominantly concern economic growth and a capitalist context. This paper discusses trends and practices in the Brazilian literature on SEA and argues that the focus means that SEA avoids critical debates of the role of capitalist logics in an emerging economy concerning sustainability. We urge the Brazilian academy to understand the implications of its reifying agenda and engage, counter-hegemonically, in a social and political agenda beyond the hegemonic support of a particular set of capitalist interests.

The evolution of co-creation reflects a shift from a firm-centric to a user-centric and collaborative approach. The purpose of this study is to explore the benefits of co-creation, its potential drawbacks and implications for the tourism and hospitality industry to help frame the concept’s evolution and understand its importance for customizing and personalizing tourism experiences.

This conceptual study presents a holistic co-creation framework that encompasses various co-creation formats found over time. This study uses bibliometric analysis and thematic analysis powered by artificial intelligence tools as techniques.

Co-creation has transitioned from basic interactions between tourists and providers to sophisticated, technology-driven processes. This paper proposes a future-oriented framework that guides academic research and practical applications, outlining key innovation and sustainable growth areas in the tourism and hospitality sectors, demonstrating how co-creation fosters innovation, enhances consumer engagement and addresses sustainability challenges.

This study offers actionable recommendations for tourism firms to harness co-creation for hyper-personalized services, sustainability and community involvement. This study emphasizes the role of emerging technologies in shaping innovative and inclusive tourism experiences.

This study promotes sustainable and ethical co-creation practices, highlighting the importance of inclusivity, cultural preservation and community empowerment in tourism development.

This reflection based on a bibliometric and artificial intelligence analysis helps to project the future developments of co-creation, raising new areas of research and paths to develop new theories and models to explain co-creation processes and outcomes and successfully integrate co-creation in tourism offers.

共创的演变反映了一种从以企业为中心向以用户为中心和协作性为核心的转变。本研究旨在探讨共创的益处、潜在缺陷及其对旅游与酒店行业的影响, 以帮助框定这一概念的演化过程, 并理解其在定制化和个性化旅游体验中的重要性。

这项概念研究提出了一个整体的共创框架, 其中包含随着时间的推移发现的各种共创形式。它使用人工智能工具支持的文献计量分析和主题分析作为技术。

共创已从游客与服务提供商之间的基本互动发展为由技术推动的复杂流程。本文提出了一个面向未来的框架, 指导学术研究和实际应用, 明确了旅游和酒店行业中关键的创新领域和可持续增长方向, 并展示了共创如何促进创新、提升消费者参与度以及应对可持续发展挑战。

基于文献计量分析和人工智能的反思性研究, 有助于预测共创的未来发展, 确定新的研究领域和路径, 从而开发解释共创过程和结果的新理论和模型, 并成功地将共创整合到旅游产品中。

该研究为旅游企业如何利用共创来实现高度个性化服务、可持续发展和社区参与提供了实际建议。重点强调了新兴技术在塑造创新和包容性旅游体验中的作用。

本研究提倡可持续和伦理共创实践, 强调在旅游发展中包容性、文化保护和社区赋权的重要性。

La evolución de la cocreación refleja el cambio de un enfoque centrado en la empresa a otro centrado en el usuario y en la colaboración. Este estudio explora los beneficios de la cocreación, sus posibles inconvenientes y sus implicaciones para la industria del turismo y la hostelería, con el fin de ayudar a enmarcar la evolución del concepto y comprender su importancia para la personalización y adaptación de las experiencias turísticas.

Este estudio conceptual presenta un marco holístico de cocreación que abarca diversos formatos de cocreación identificados a lo largo del tiempo. Para ello, utiliza como técnicas el análisis bibliométrico y el análisis temático potenciado por herramientas de inteligencia artificial.

La cocreación ha evolucionado de las interacciones básicas entre turistas y proveedores a procesos sofisticados impulsados por la tecnología. El artículo propone un marco orientado al futuro que guía la investigación académica y las aplicaciones prácticas, esbozando áreas clave de innovación y crecimiento sostenible en los sectores del turismo y la hostelería, y demostrando cómo la cocreación fomenta la innovación, mejora la participación de los consumidores y aborda los desafíos de la sostenibilidad.

El estudio ofrece recomendaciones prácticas para que las empresas turísticas aprovechen la cocreación para ofrecer servicios hiperpersonalizados, sostenibilidad y participación de la comunidad. Hace hincapié en el papel de las tecnologías emergentes en la configuración de experiencias turísticas innovadoras e inclusivas.

La investigación promueve prácticas de cocreación sostenibles y éticas, subrayando la importancia de la inclusión, la preservación cultural y el empoderamiento de la comunidad en el desarrollo turístico.

Esta reflexión, basada en un análisis bibliométrico y de inteligencia artificial, ayuda a proyectar los futuros desarrollos de la cocreación, identificando nuevas áreas de investigación y vías para desarrollar nuevas teorías y modelos que expliquen los procesos y resultados de la cocreación e integren con éxito la cocreación en las ofertas turísticas.

In a systemic approach, a ship is a system in which people and organizations interact directly and indirectly in all processes from construction, during the route and at the destination, throughout its useful life, until eventual scrapping or disposal process. The purpose of this paper is to take on the UN 2030 Agenda ‒ Goal 14 to propose a management model that meets environmental guidelines for assessing impacts caused by the cruise ships.

To verify the proposed model, a quantitative survey using non-probability purposive sampling was conducted among ports, environmental sustainability experts and ocean cruise companies. The empirical data were analyzed using descriptive statistics and structural equation modeling.

Findings have confirmed five environmental requirements that shipping companies must manage on their cruise ships to meet Goal 14: input management, waste management, air quality, energy management and water management. Adopting and disseminating sustainable development models provides transparent information about actions taken and results of environmental management, and it may change the perception of the organization’s image, which is relevant to win and maintain environment-friendly customers, adding intangible value to the tourism product.

One of the limitations of the study is the research sample, especially ocean cruise companies, which can have biased results, as they are potential sources of environmental impacts. However, this was not the case, since the answers were similar to those of the other two groups surveyed.

The originality of the study is justified by researchers who argue that information provided by shipping companies on sustainability is very limited, as according to previous research, the convergence between strategy formulation model and environmental sustainability as a principle to be incorporated into the management of oceangoing vessels has not been studied.

This study aims to provide an analysis of teaching the “10 Rs” – Refuse, Rethink, Reduce, Reuse, Repair, Remodel, Remanufacture, Reuse, Recycle and Recover energy, in technological-level undergraduate courses offered in Brazil. Technological undergraduate courses are more dynamic and pragmatic than bachelor’s degrees and aim to meet market demand.

The study collected data from 39 educators who know the reality of technological-level undergraduate courses in Brazil. The data were analyzed using the fuzzy technique for order preference by similarity to ideal solution class technique.

The main findings of the research show potential for improvement in teaching all the “Rs” analyzed when considering technological-level undergraduate courses. Refuse, Restore and Recover energy are the most critical when considering how they should be taught in undergraduate technology courses in Brazil.

The paper’s originality lies in a unique empirical analysis of the circular economy – which is increasingly emerging as an intriguing approach to seeking sustainability in production chains – and the new generation of professionals in technological undergraduate courses who need to be educated and aligned with these concepts. The results can improve the curriculum, syllabus, course objectives and learning outcomes, upgrading the courses’ pedagogical projects.

Organizations and markets are constantly developing and changing, impacting how organizations create value and manage supply chains. This paper aims to identify the motor themes and subthemes of academic research that relate supply chain management (SCM) maturity and business models (BMs).

The Science Mapping Analysis Tool (SciMAT) was used to conduct a seven-step bibliometric analysis of 889 documents indexed in the Scopus database clustering by relatedness of works and keywords. The methodological approach included content analysis of the literature, longitudinal analysis and strategic diagram analysis.

The thematic evolution analysis revealed that three themes drive the studies on SCM maturity and BM: industry 4.0 (motor theme), environmental management (transversal theme) and product management (highly developed and isolated theme). The strategic diagrams and co-word networks allowed to graphically identify the main topics connecting SCM maturity and BM. Considering this connection, the scientific mapping emphasizes the significance and strength of the link between digital technologies, technology management and manufacturing management in Industry 4.0. In addition, the connections between the subthemes revealed that circular economy and green human resource management are important concepts to advance theory and practice on the connection between SCM maturity and BM.

This research extends the knowledge base by providing an analysis of the key themes and the links with subthemes in the literature that relate to SCM maturity and BM. Key studies are analyzed and linked with the key topics identified using the SciMAT software. Future research avenues are outlined, providing new insights to advance theory and practice.

Hybrid methods, wherefore numerical and experimental data are used to calculate a critical parameter, have been used for several years with great success in Experimental Mechanics and, in particular, in fracture mechanics. The purpose of this paper is to report on the comparison of the strain field from numerical modelling forecasts against the experimental data obtained with the digital image correlation method under Mode II loading in fatigue testing. The numerical dual boundary element method has been established in the past as a very reliable method near singular regions where stresses tend to grow abruptly. The results obtained from the strain data near the crack tip were used in Williams expansion and agree fairly well with both the numerical results and the analytical solution proposed for pure Mode II testing.

The work presented in this note is experimental. The proposed methodology is of an hybrid experimental/numerical nature in that a numerical stress intensity factor calculation hinges upon a stress field obtained with an image method.

The obtained results are an important step towards the development of a practical tool for crack behaviour prediction in fatigue dominated events.

The results also stress the necessity of improving the experimental techniques to a point where the methods can be applied in real-life solicitations outside of laboratory premises.

Although several research teams around the globe are presently working in this field, the present research topic is original and the proposed methodology has been presented initially by the research team years ago.