Effect of Sr substitution on superconductivity in Hg2(Ba1-ySry)2YCu2O8-d (part2): bond valence sum approach of the hole distribution

The effects of Sr substitution on superconductivity, and more particulary the changes induced in the hole doping mechanism, were investigated in Hg2(Ba1-ySry)2YCu2O8-d by a "bond valence sum" analysis with Sr content from y = 0.0 to y = 1.0. A comparison with CuBa2YCu2O7-d and Cu2Ba2YCu2O8 systems suggests a possible explanation of the Tc enhancement from 0 K for y = 0.0 to 42 K for y = 1.0. The charge distribution among atoms of the unit cell was determined from the refined structure, for y = 0.0 to 1.0. It shows a charge transfer to the superconducting CuO2 plane via two doping channels pi(1) and pi(2), i.e. through O2(apical)-Cu and Ba/Sr-O1 bonds respectively.Comment: 13 pages, 5 figures, accepted for publication in Journal of Physics: Condensed Matte

Exploring drivers to engage in fashion luxury consumption

The main purpose of the current study is to analyze how desire, perceived-self, social values and involvement are related to consumer engagement into the fashion luxury industry. A sample of 295 luxury fashion consumers participate in the study. Findings suggest that perceived-self is not one of the most significant driver to consumer engagement. Subjective well-being may also act as an outcome of consumer engagement. The article also provides managerial implications, limitations and further research.info:eu-repo/semantics/acceptedVersio

Mapping case studies of public engagement and participation in science and technology

In recent years, increasing criticism has been levelled against case study based research on public engagement and participation in science and technology (PEST). Most critics argue that such case studies are highly contextual and fail to provide global, holistic and systemic views of public engagement phenomena. In this study, we mapped the case study literature on PEST by identifying a robust sample of articles, and analysed it looking for emerging patterns that could provide empirical evidence for new frameworks of public engagement design and analysis. Results show that the case study based literature on PEST continues to grow, although concentrated in a few countries and knowledge domains. The trends that emerged from the sample reveal high centralisation and planning and suggest that deficit science communication models are still common. We argue that future frameworks may focus on decentralising hierarchical power and dependency relationships between agents.info:eu-repo/semantics/publishedVersio

Mapping case studies of public engagement and participation in science and technology

In recent years, increasing criticism has been levelled against case study based research on public engagement and participation in science and technology (PEST). Most critics argue that such case studies are highly contextual and fail to provide global, holistic and systemic views of public engagement phenomena. In this study, we mapped the case study literature on PEST by identifying a robust sample of articles, and analysed it looking for emerging patterns that could provide empirical evidence for new frameworks of public engagement design and analysis. Results show that the case study based literature on PEST continues to grow, although concentrated in a few countries and knowledge domains. The trends that emerged from the sample reveal high centralisation and planning and suggest that deficit science communication models are still common. We argue that future frameworks may focus on decentralising hierarchical power and dependency relationships between agents.info:eu-repo/semantics/publishedVersio

Exploring a new form of interaction in the match day: Virtual reality technologies among fans of soccer

Virtual reality (VR) is a technology with potential to disrupt the soccer industry as fans are willing to enjoy new home-watching experiences. This study analyzes the concept of a new VR soccer experience by means of using the Extended Technology Acceptance Model to determine the factors that lead to the adoption of VR equipment in the match day. Data was collected and 203 valid responses were obtained. The results were treated using structural equation modeling, which allowed predicting purchase and use intentions. Findings suggest that perceived usefulness, perceived enjoyment, and attitudes are strong predictors of the outcomes. Moreover, the results support the potential of VR and its integration in sports. This study paves the way to further research on this matter and provides several insights and recommendations for sports organizations on how to design their offerings to soccer fandom.info:eu-repo/semantics/acceptedVersio

Brand power and brand focus as facilitators of relationship quality in the wine sector

The effectiveness of long-term relationships with business partners has been getting more attention in recent years from both academics and managers. This study explores a dyadic perspective of wine producers and distributors that identified Brand Focus as new sub-construct of Long-term Relationship Sustainability and Brand Power as new sub-construct of Power, employed to describe the Relationship Quality (RQ) between two important players of the market. The main findings highlight contributions made to brand relationships acting as facilitators of RQ in the wine sectorinfo:eu-repo/semantics/acceptedVersio

Understanding the role of visual attention on wines’ purchase intention: an eye-tracking study

Purpose: Wine bottles compete for consumers’ attention in the shelf during the decisive moment of choice. This study aims to explore the role that visual attention to wine labels has on the purchase decision and the mediating role of quality perceptions and desire on such purchase behaviours. Wine awards and consumption situation are used as moderators. Design/methodology/approach: The study was conducted in Portugal and 36 individuals participated in a 2 × 2 within subjects design (awarded/not awarded × self-consumption/social-consumption). For each scenario, individuals’ attention, perceptions of quality, desire and purchase intentions were recorded. Findings: Data from eye-tracking shows that, during the purchase process, the amount of attention given to a bottle is determinant of individuals’ purchase intentions, a relationship that increases in significance for bottles with awards and for when consumers are buying wine for a consumption situation involving a social environment. In addition, both quality perceptions and desire are confirmed to positively influence wines’ purchase intentions. Originality/value: By using an eye monitoring method, this paper brings new insights into the wine industry by highlighting the impact that wines’ labels and different consumption situations have on individuals’ attention and purchase intention. Wine producers and retailers may benefit from the insights provided by the current study to refine their communication strategies by either highlighting product characteristics and pictorial elements, as it is the case of the awards, or communicating about their products for different consumption situations.info:eu-repo/semantics/acceptedVersio

Wine prestige and experience in enhancing relationship quality and outcomes: wine tourism in Douro

Purpose: The purpose of this study is twofold: conduct a systematic literature review on relationship quality; and analyse the effect of wine brand prestige and wine consumer experience on consumer satisfaction, as well as the wine brand image and word of mouth as outcomes. Design/methodology/approach: The authors employed a systematic approach to develop the literature review and a survey was designed and used to collect responses from 479 wine consumers and tourists. Partial Least Squares approach was used to test the proposed model and analyse the findings. Findings: The systematic approach allows to determine the core constructs of relationship quality, main antecedents and outcomes, which help in the conceptualisation of the proposed model. The findings of the survey suggest that wine brand prestige is more effective in enhancing consumer satisfaction than wine consumer experience. Consumer satisfaction acts as a mediator between wine brand prestige and wine consumer experience and the outcomes, that is, wine. Originality/value: This research sheds light on a strategic and communicational development of prestigious wine brands to enhance wine image and keep wine tourists captivated.info:eu-repo/semantics/acceptedVersio

Linear Theory of Electron-Plasma Waves at Arbitrary Collisionality

The dynamics of electron-plasma waves are described at arbitrary collisionality by considering the full Coulomb collision operator. The description is based on a Hermite-Laguerre decomposition of the velocity dependence of the electron distribution function. The damping rate, frequency, and eigenmode spectrum of electron-plasma waves are found as functions of the collision frequency and wavelength. A comparison is made between the collisionless Landau damping limit, the Lenard-Bernstein and Dougherty collision operators, and the electron-ion collision operator, finding large deviations in the damping rates and eigenmode spectra. A purely damped entropy mode, characteristic of a plasma where pitch-angle scattering effects are dominant with respect to collisionless effects, is shown to emerge numerically, and its dispersion relation is analytically derived. It is shown that such a mode is absent when simplified collision operators are used, and that like-particle collisions strongly influence the damping rate of the entropy mode.Comment: 23 pages, 10 figures, accepted for publication on Journal of Plasma Physic

Exploring how to enhance SMES practices in the tourism sector in terms of service quality and sustainability

This study is part of RESETTING, a European program designed as a tool for "Relaunching European Smart and Sustainable Tourism Models through Digitalization and Innovative Technologies" (RESETITNG, 2022). This project aims to improve the quality of the travel experience, support the decarbonization of the tourism industry and promote more inclusive economic growth - not only for SMEs, but also for local people in the destination - by testing and integrating cutting-edge, digitally driven solutions that reduce burdensome requirements and facilitate the transition to more resilient, circular and sustainable operating models for European tourism businesses. The project will involve 60 SMEs from five countries (Portugal, Spain, Italy, Greece, and Albania). The contribution of managers with different experiences will allow them to evaluate and find solutions that can be helpful and relevant in very specific tourism contexts. This work will help to identify, propose, and validate measurement scales for a web platform developed to help SMEs evaluate their execution of different concepts. The main objective is to use a systematic literature approach to identify and analyze two core constructs: Service Quality and Sustainability. In addition, we also intend to understand how these constructs are measured in the tourism sector, especially regarding small and medium enterprises, to then propose our own measurement scales. The systematic literature review followed several criteria of quality, the scope of the study, and the use of quality ranking of journals where studies are published.info:eu-repo/semantics/publishedVersio