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Worldwide, natural hazards are affecting urban cultural heritage and World Heritage Sites, exacerbating other environmental and human-induced threats deriving from deterioration, uncontrolled urbanization and unsustainable tourism. This paper aims to develop a disaster risk analysis in Italian historic centers because they are complex large-scale systems that are cultural and economic resources for the country, as well as fragile areas.

A heritage-oriented qualitative methodology for risk assessment is proposed based upon the formalization of risk as a function of hazard, vulnerability and exposure, taking into account the values of cultural heritage assets.

This work provides a contribution to the body of knowledge in the Italian context of disaster risk mitigation on World Heritage Sites, opening for further research on the monitoring and maintenance of the tangible heritage assets. The application to the site of San Gimignano proves the effectiveness of the methodology for proposing preventive measures and actions that ensure the preservation of cultural values and a safer built environment.

The application of a value-based simplified approach to risk analysis is a novelty for historic centers that are listed as World Heritage Sites.

The purpose of this paper is to understand how Open Innovation Digital Platforms (OIDPs) can facilitate and support knowledge co-creation in Open Innovation (OI) processes. Specifically, it intends to investigate the contribution of OIDPs-oriented to successfully implement all the phases of interactive coupled OI processes.

The paper carries out an exploratory qualitative analysis, adopting the single case study method. The case here investigated is Open Innovation Platform Regione Lombardia (OIPRL).

The case study sheds light on how OIPRL supports knowledge co-creation through its processes, tools and services as a co-creator intermediary. In its launch stage, the platform simply aimed at giving firms a tool to “find partners” and financial resources to achieve innovative projects. Now, however, the platform has developed into an engagement platform for knowledge co-creation.

One limitation lies in the particular perspective used to perform the case study: the perspective of the digital platform itself. Future research should focus on the individuals engaged in the platform to better investigate the processes, tools and services used to implement the OI approach.

The paper suggests ways in which OIDPs could be used by firms for effective exploration, acquisition, integration and development of valuable knowledge.

The study conceptualizes the role of OIDPs in shaping knowledge co-creation, assuming that the platforms act as Open Innovation Intermediaries (OIIs). Specifically, OIDPs can be observed to function as “co-creator intermediaries” that define, develop and implement dedicated processes, specific tools and appropriate services for supporting knowledge co-creation activities.

Social media have become a key part of placemaking. Placemaking revolves around collaboration between multiple stakeholders, which requires ongoing two-way communication between local government and citizens. Although social media offer promising tools for local governments and public professionals in placemaking, they have not lived up to their potential. This paper aims to uncover the tensions and challenges that social media bring for public professionals at the street level in placemaking processes.

This study aims to fill this gap with a case study of area brokers engaged in online placemaking in Amsterdam. In total, 14 in-depth semi-structured interviews were conducted, focusing on area brokers’ social media practices, perceptions and challenges. The authors used an open coding strategy in the first phase of coding. In the second phase, the authors regrouped codes in thematic categories with the use of sensitizing concepts derived from the theoretical review.

The use of social media for placemaking imposes demands on area brokers from three sides: the bureaucracy, the affordances of social media and affective publics. The paper unpacks pressures area brokers are under and the (emotional) labour they carry out to align policy and bureaucratic requirements with adequate communication needed in neighbourhood affairs on social media. The tensions and the multidimensionality of what is required explain the reluctance of area brokers to exploit the potential of social media in their work.

Several studies have addressed the use of social media in placemaking, but all neglected the perspective of street-level bureaucrats who shape the placemaking process in direct contact with citizens.

Aims to summarise the programme of UV Europe, a conference on unmanned vehicles that took place in Paris in June 2005.

Selects key conference presentations and summarises their contents, indicating the main themes.

Finds very strong international activity in the field of unmanned aerial vehicles (UAVs). Most progress has been made in the military sector so far. Concern about air space safety is holding back the industry.

Presents the topics relating to UAVs that concern the market today, and summarises the main areas of research and development.

This study aims to examine the relationship between polychronicity, job autonomy, perceived workload, work–family conflict and high work demand on the health-care employee turnover intention during the COVID-19 pandemic.

The authors conducted quantitative research in private hospitals using a self-administered questionnaire, and 264 respondents participated. The authors also used an analysis of moment structures to determine the relationship between independent and moderating variables.

The results show a significant positive relationship between polychronicity, job autonomy, perceived workload, work–family conflict and high work demand, affecting turnover intention. This study also found the moderating effect of high work demand on work–family conflict and turnover intention.

This research was limited to hospitals in Bahrain during the COVID-19 pandemic. Nevertheless, the findings highlight the factors associated with health-care employee turnover intention and only five factors were identified.

This study enhances the theoretical and practical effects of turnover intention. The results provide a competitive benchmark for hospital managers, administrators and governing bodies of employee retention.

It advances economics and management theory by enhancing the understanding of health-care employees’ turnover intention in Bahrain. It serves as a basis for future large-scale studies to test or refine existing theories.

To the best of the authors’ knowledge, this study is the first to adopt extrinsic variables in self-determination theory to measure the turnover intention of health-care employees. However, using resources in a crisis can be applied to any disaster.

This study aims to clarify the relationship between the coefficient of friction (COF) and temperature of aluminum-based brake discs.

Three friction blocks with different COFs are examined by a TM-I-type reduced-scale inertial braking dynamometer. On this basis, the thermo-mechanically coupled model of friction pairs is established to study the evolution of brake disc temperature under different COFs using ADINA software.

Results indicate that the calculated disc temperature field matches the experimental well. The effect of COF on the peak temperature is magnified by the braking speed. With the COF increasing, the rise rate of instantaneous peak temperature is accelerated, and the dynamic equilibrium period and cooling-down period are observed in advance. The increase in COF promotes the area ratio of the high-temperature zone and the maximum radial temperature difference. When the COF is increased from 0.245 to 0.359 and 0.434 at 140 km/h, the area ratio of high-temperature zone increases from 12% to 44% and 49% and the maximum radial temperature difference increases from 56°C to 75°C and 83°C. The sensitiveness of the axial temperature difference to the COF is related to the braking time. The maximum axial temperature difference increases with COF in the early stages of braking, while it is hardly sensitive to the COF in the later stages of braking.

The effect of COF on the aluminum-based brake disc temperature is revealed, providing a theoretical reference for the popularization of aluminum-based brake discs and the selection of matching brake pads.

This paper aims to enhance understanding of how sustainable entrepreneurship (SE) contributes to sustainable development in the tourism sector. To do so, specific factors that act as enablers or inhibitors of SE are identified according to a co-evolutionary lens.

A co-evolutionary explanation of the firm? Environment relationship is adopted to undertake a qualitative empirical study of the Castelli Romani tourism destination (Italy), via 23 semi-structured interviews according to a narrative approach.

The paper demonstrates that entrepreneurs play a crucial role in sustainable development but cannot act in isolation. In fact, according to the co-evolutionary approach, they influence and are influenced by 20 factors. Accordingly, SE can be conceptualised as resulting from effective co-evolutionary interactions between micro (i.e. entrepreneurs and their firm), meso (i.e. the destination where tourism firms are based) and macro (i.e. the wider socio-economic and natural system) levels.

Several actions are suggested to entrepreneurs and policymakers to help achieve specific sustainable development goals. These actions focus on: (1) training courses, (2) investments in technologies, (3) creation of innovative business models, (4) exploitation of cultural and natural resources, (5) community involvement and (6) multi-level partnerships.

This is the first study that adopts a co-evolutionary lens to investigate the influencing factors of SE in tourism, shedding light on the effects of their dynamic interdependence. Thus, it provides a more nuanced SE conceptualisation that takes a holistic and dynamic view of sustainability.