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The purpose of this paper is to report the study of vibration energy harvesting from a data center (DC) mainframe computer to power nodes of a wireless sensors network (WSN are used to improve the energy efficiency of a DC).

The piezoelectric vibration energy harvester (VEH) has been designed using an electromechanical analytical model. The VEH is composed of a three-layer cantilever beam with a tip mass. A vibration map (amplitude and acceleration) is presented and the authors show that the optimum frequency is around 90 Hz with maximum amplitude of 1 μm and maximum acceleration of 0.6 m/s2. Modeling results and experimental measurements using an electromagnetic shaker to apply vibrations concord.

The VEH delivers a maximum power of 31 μW on a DC mainframe computer and 2.3 mW at 1g on a test rack. It allows us to use a storage capacitance to successfully power a wireless sensor node for measuring temperature. This paper has been carried out in cooperation with IBM Montpellier and within the framework of the RIDER project financed by the French government and the European Union.

A vibration map (amplitude and acceleration) is presented and the authors show that the optimal frequency is around 90 Hz with maximum amplitude of 1 μm and maximum acceleration of 0.6 m/s2. The VEH delivers a maximum power of 31 μW on DC mainframe computer and 2.3 mW at 1 g on test mounted the shaker. It allows us with a storage capacitance to successfully power a wireless sensor node for measuring temperature.

The purpose of this paper is to examine the professionalism and professionalization of sustainability assurance providers based on the experiences and perceptions of auditors involved in this activity.

The empirical study was based on 38 semi-directed interviews conducted with assurance providers from accounting and consulting firms.

The findings highlight the division of this professional activity between accounting and consulting firms, each of which question the professionalism of the other. The main standards in this area tend to be used as legitimizing tools to enhance the credibility of the assurance process rather than effective guidelines to improve the quality of the verification process. Finally, the complex and multifaceted skills required to conduct sound sustainability assurance and the virtual absence of recognized and substantial training programs in this area undermine the professionalization of assurance providers.

This work has important practical implications for standardization bodies, assurance providers and stakeholders concerned by the quality and the reliability of sustainability disclosure.

This study shows how practitioners in this area construct and legitimize their professional activity in terms of identity, standardization and competences. The work contributes to the literatures on the assurance of sustainability reports, self-regulation through standardization and professionalization.

The purpose of this paper is to examine the perception of HRM practices and the retirement decision of older workers with a low occupational status in the creative industry in the Netherlands using social identity theory.

In total, 30 semi-structured in-depth interviews were conducted by telephone. The sample consisted of workers with a low occupational status, aged 50 or above, in the creative industry in the Netherlands, all member of the trade union of this industry.

The relationship between HRM practices and retirement decisions is complex and contradictory. In line with social identity theory, it was found that HRM practices designed for older workers were perceived as a stamp that they belonged to a devalued social group. However, they do want organizations to accommodate their needs, but in a way that they do not feel to require special attention.

The findings show that older workers want organizations to adapt the workplace to their needs, but that the provision of age-specific practices could prevent them from constructing a positive social identity. HR practices can only make older workers extend their working lives if they are provided to all workers regardless occupational status or age.

This chapter examines the dynamic of state-society interaction during the events of the winter 2013–2014 Ukrainian Maidan Revolution. Using a new dataset, containing responses from the activists of the dissent movement, the study uncovers the “tipping point” at which revolutionaries were much more likely to support violent tactics. The study adds to the scholarly debate on repression-dissent, showing that social interpretation of state repression is essential in affecting social support for political violence. In addition to the theoretical contribution, this article presents the first systematic scholarly account of the repression-dissent dynamic of the 2013–2014 Ukrainian revolution, implementing original empirical and interview data.

After having drawn lessons from the recent COVID-19 pandemic for retailers in the previous chapters, in this last chapter we provide an outline on retailing over a longer time horizon. We start with projections of how the phygitalization trend in retailing will further evolve and what role data plays as a basis for a competitive advantage – on the condition of smart and ethical use. Besides looking at customers (downstream), we address the upstream in the value delivery network, focusing on how to succeed in balancing between efficiency and sustainability in the retail supply chain. Retailers face huge challenges. This chapter contributes to setting the scene for retailers to thrive in the brand-new post-pandemic aftermath.

Drawing on Bert Klandermans (2004) hypothesis that instrumentality, identity, and ideology are interacting motivations, which increase the likelihood of participation in social movements, this article examines why individuals joined the Northern Ireland Civil Rights Movement (CRM) during the 1960s. Analyzing data gathered from semi-structured interviews, newspapers, autobiographies, secondary sources, government and movement organizations documents, the empirical analysis indicates that the individuals’ motivations in the process of involvement in social movement activities differ over time. The accounts of former participants generally suggest that instrumentality provided a stronger initial motivation during the very early stage of the CRM. With the development of the movement and changes of the political context, the choice to participate rested – for the mass of individuals who decided to mobilize later in consequence of a “transformative event” – more on identity and ideology. The research underscores the importance of the “timing” of involvement in order to better grasp the causal justification of movement participation over time. Focusing on a deeply divided society, such as Northern Ireland, this research also broadens the comparative range of case studies in the field of collective action and enhances our understanding of how repressive measures by the establishment in relation to contentious politics in deeply divided societies mobilizes further the individual in social movement activities.

This paper aims to model the price of cellar tours using a hedonic pricing approach. The authors analyze the complex relationship between the price of an add-on (here, cellar tours) and the price of the reference product (here, wine).

Thanks to a large database containing information on about 1,000 winery experiences, the authors regress the price of cellar tours on wine prices and on a broad set of objective characteristics that are (1) tour specific and (2) common to all tours offered by the winery. These exogenous controls include the type and style of experience offered, amenities and winemaking characteristics.

The authors show that the price of cellar tours follows the price of the most expensive wine sold by the winery, which is a proxy for reputation. The authors find that one of the main determinants of cellar tour prices is visit length: wineries charge more for longer experiences. The number of wines tasted during the visit also increases the price. Prices are higher in places where there is a high level of wine tourism activity, which might be a sign of authenticity.

Wine producers in different countries need to gain insights on how to price cellar tours, which are composite goods. The results can help practitioners price their winery experience according to common practices in different wine regions. The results may also be of interest to professionals in the tourism sector who are in charge of the pricing of by-products (e.g. tee-shirts, books, etc.), or for luxury fashion labels extending their brand in the catering industry with cafes and restaurants.

To the best of the authors’ knowledge, this paper is the first empirical analysis that examines the complex relationship between the price of an add-on and the price of the reference product in the context of wine tourism.