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To date e‐Learning material has usually been accessed and delivered through a central web server. As the number of users, the amount of information, the frequency of accesses and the volume of data increase, together with the introduction of multimedia streaming applications, a decentralized content distribution architecture is necessary. In this paper we propose the adaptation of the well‐known scalable Content Distribution Networks (CDN) schema for media streaming supported e‐Learning using a novel architecture named COMODIN SCDN (COoperative Media On‐Demand on the InterNet ‐ Streaming Content Distribution Network). COMODIN SCDN utilises surrogates as edge content delivery nodes, incorporates a redirection mechanism able to route requesting clients to the closest copy of the content, encompasses distributed content delivery and management mechanisms to improve the speed, reliability, and scalability of user access to prevent flash‐crowds. Preliminary results in testbeds have shown that COMODIN SCDN increases the efficacy of information distribution through intra and inter‐campus area netwoks. This overlay network will provide learners and educators a scalable, balanced and expeditious access to e‐Learning contents.

Age at migration is commonly utilized as a proxy measure for assimilation in health behavior research. We reconsider this approach by examining the role of continued connection with places of origin on alcohol use, an important marker of health behavior and overall population health. Cross-border connections may buffer the association between earlier age at migration and alcohol use by providing an alternative channel of influence for behavioral norms. Alternatively, a stress and coping perspective on cross-border ties suggests potentially countervailing adverse impacts of these connections on alcohol use. We used data from the 2002/2003 National Latino and Asian American Study (NLAAS) (n = 1,641/1,630 Asian and Latino origin respondents, respectively). We first estimated the association between age at migration (child/adolescent versus adult migrant) and any past-year alcohol use. We subsequently tested the interaction between age at migration and two measures of cross-border connections. All models were stratified by region of origin and gender. For Latin American-origin women, cross-border ties were associated with increased risk of past-year alcohol use among those who migrated early in life. In contrast, Asian-origin men and women who migrated as adults and had contact with family and friends abroad had the lowest predicted probabilities of past-year alcohol use. The results among Asians support the idea that cross-border ties may be alternative influences on health behavior outcomes, particularly for adult migrants. Overall, we find qualified support for both transnational and assimilationist perspectives on alcohol use behaviors among US immigrants – as well as the interaction between these two frameworks. The joint influences of cross-border ties and age at migration were observed primarily for immigrant women, and not always in expected directions. We nevertheless urge future research to consider both US and country of origin influences on a wider range of health and health behavior outcomes for immigrants, as well as the potential intersection between US and cross-border connections.

At a time when many people are experiencing stress, burnout, and strain at work, a relaxing vacation becomes increasingly important. Remote locations such as Bali, the Maldives, or the Caribbean have experienced a steady increase in popularity: exotic dishes, turquoise water, and white sandy beaches are often tourist magnets. While the corona crisis is changing the name of the game at this point, those destinations may attract travelers seeking remote destinations catering to the individual rather than the group. In response, new luxury resorts have emerged in recent years fostering global travel with its set of positive and negative impacts on the environment, the economy, and communities. In light of a global climate emergency, is luxury tourism in remote destinations compatible with sustainable development? This chapter, exploratory by nature, concludes that if there is one hope, it is that sustainability becomes the sine qua non of luxury tourism in the near, post-corona future.

The main purpose of this paper is to assess the patterns in the public discourse of successful chief executive officers (CEOs) in terms of performance, with the CEO's strengths and aspects to improve.

This paper aligns with the literature that appraises CEO public discourse and relevance. From the literature review, the strategic levers in CEO discourse toward high performance are identified. The CEO letters in the period 2017–2019 of the top 25 best performing CEOs (BPCs) according to Harvard Business Review ranking 2019 are qualitatively examined through a multiple close reading analytical technique and multiple correspondence analysis (MCA) is applied to assess the patterns.

The paper delivers a three-dimensional model representing how the identified strategic levers are articulated by BPCs in the BPC's discourse following diverse patterns. This paper points out BPC's strengths, among them a high level of moral reasoning compared to previous studies and improvable areas such as the extended absence of autocritique at the firm and personal level or the lack of leverage on the need for agility and proactive adaption.

This paper contributes further CEO awareness of the strategic role of the discourse and offers clues to enhance CEO awareness, as well as criteria for boards of directors to appraise CEO discourse.

Adopting a novel approach, this paper addresses the strategic levers triggered by CEOs in their letters from a managerial implication perspective, providing relevant theoretical insight on how they are articulated.

This paper aims to discuss the place-making processes of street art within the context of Toronto, Canada, and potential for street art as alternative tourism to contribute to new urban tourism and encourage urban regeneration in the city.

The study applies reflexive thematic analysis to analyse secondary data sources such as reports, maps, videos, websites, news articles and official documents alongside photographic documentation and field research.

Street art in Toronto has been found to coincide closely with processes of creative place-making. While there is some indication that municipal street art organizations and destination marketing organizations are aware of the possibilities for street art to contribute to tourism in the city, it remains an untapped resource for new urban tourism. As a component of creative place-making, it has great potential as a form of alternative tourism to regenerate a still struggling tourism economy.

This paper explores the nascent research area and practical application of street art as an alternative form of urban tourism in Toronto, Canada. It also fills a gap by connecting the concept of creative place-making with street art, urban regeneration and tourism specifically; a focus that needs wider attention.

This paper aims to present findings from a preliminary study aimed at investigating sustainability practices and managerial perceptions within European luxury tourism companies. The study addressed two key research questions: What is the present state of sustainability practices in the luxury tourism sector? What are the managers' perspectives and the prevailing trends in the adoption of sustainable approaches?

The study used a mixed methods approach to gather data from a diverse range of European luxury tourism companies. The survey and the interview of companies’ representatives encompassed various organisational types engaged in different tourism activities, allowing for a comprehensive exploration of sustainability practices within the sector. Organisational characteristics, such as size, turnover and location, were considered to ensure a representative sample.

The findings of the study reveal a robust commitment to environmental, social and economic sustainability across the luxury tourism industry. Despite variations in organisational characteristics, including size, turnover and location, the study identified a lack of significant differences in sustainability practices, indicating a noteworthy homogeneity within the sector. The findings also show that a high percentage of companies hold sustainability certifications and share an emphasis on authenticity, local engagement and economic profitability.

The study's sample size may limit the generalisability of the findings. A larger sample size would enhance the study's robustness and allow for more comprehensive insights into sustainability practices within the luxury tourism sector. The study's focus on European luxury tourism companies may limit its applicability to other regions or contexts.

This study contributes to the existing literature by providing insights into sustainability practices and managerial perspectives within the European luxury tourism sector. The study offers original insights into the current state of sustainability in luxury tourism and highlights opportunities for further research and refinement of sustainability initiatives within the sector.

本文介绍了一项初步研究的结果, 该研究旨在调查欧洲豪华旅游公司的可持续发展实践和管理观念。该研究解决了两个关键的研究问题：豪华旅游业可持续发展实践的现状如何？在采用可持续方法方面, 管理者的观点和当前趋势是什么？

该研究采用混合方法从各种欧洲豪华旅游公司收集数据。调查和对公司代表的采访涵盖了从事不同旅游活动的各种组织类型, 从而可以全面探索该行业的可持续发展实践。考虑了组织特征, 如规模、营业额和地点, 以确保样本具有代表性。

该研究的结果表明, 整个豪华旅游业对环境、社会和经济可持续性做出了坚定的承诺。尽管组织特征（包括规模、营业额和地点）存在差异, 但该研究发现可持续发展实践缺乏显著差异, 表明该行业内部存在值得注意的同质性。调查结果还显示, 很高比例的公司持有可持续发展认证, 并强调真实性、当地参与度和经济盈利能力。

这项研究的样本量可能会限制研究结果的普适性。更大的样本量将增强研究的稳健性, 并使我们能够更全面地了解豪华旅游行业的可持续发展实践。该研究对欧洲豪华旅游公司的关注可能会限制其对其他地区或环境的适用性。

本研究通过提供对欧洲豪华旅游业可持续发展实践和管理视角的见解, 为现有文献做出了贡献。该研究为豪华旅游的可持续发展现状提供了原创见解, 并强调了进一步研究和完善该行业可持续发展举措的机会。

Este artículo presenta las conclusiones de un estudio preliminar destinado a investigar las prácticas de sostenibilidad y las percepciones de los directivos en las empresas europeas de turismo de lujo. El estudio abordó dos preguntas clave de investigación: ¿Cuál es el estado actual de las prácticas de sostenibilidad en el sector del turismo de lujo? ¿Cuáles son las perspectivas de los directivos y las tendencias predominantes en la adopción de enfoques sostenibles?

El estudio utilizó un enfoque de métodos mixtos para recopilar datos de una amplia gama de empresas europeas de turismo de lujo. La encuesta y la entrevista a los representantes de las empresas abarcaron varios tipos organizativos dedicados a diferentes actividades turísticas, lo que permitió una exploración exhaustiva de las prácticas de sostenibilidad dentro del sector. Se tuvieron en cuenta las características organizativas, como el tamaño, el volumen de negocio y la ubicación, para garantizar una muestra representativa.

Los hallazgos del estudio revelan un sólido compromiso con la sostenibilidad medioambiental, social y económica en todo el sector del turismo de lujo. A pesar de las variaciones en las características organizativas, incluidos el tamaño, la facturación y la ubicación, el estudio identificó una falta de diferencias significativas en las prácticas de sostenibilidad, lo que indica una notable homogeneidad dentro del sector. Las conclusiones también muestran que un alto porcentaje de empresas poseen certificaciones de sostenibilidad y comparten el énfasis en la autenticidad, el compromiso local y la rentabilidad económica.

El tamaño de la muestra del estudio puede limitar la generalización de las conclusiones. Una muestra de mayor tamaño mejoraría la solidez del estudio y permitiría obtener una visión más completa de las prácticas de sostenibilidad dentro del sector del turismo de lujo. El hecho de que el estudio se centre en empresas europeas de turismo de lujo puede limitar su aplicabilidad a otras regiones o contextos.

Este estudio contribuye a la bibliografía existente al ofrecer una visión de las prácticas de sostenibilidad y las perspectivas de gestión dentro del sector europeo del turismo de lujo. El estudio ofrece una visión original del estado actual de la sostenibilidad en el turismo de lujo y destaca las oportunidades para seguir investigando y perfeccionando las iniciativas de sostenibilidad dentro del sector.

The purpose of this study is to assess the potential benefits of digital technologies (DTs) in bolstering the circular economy (CE) transition in the construction industry, to speed up the attainment of sustainable development objectives.

A detailed literature review was undertaken to identify DTs that could influence CE transition and the benefits of these DTs in the CE transitioning efforts of the construction industry. Based on these, a survey questionnaire was formulated and administered to construction professionals using convenient sampling techniques. With a response rate of 49.42% and data reliability of over 0.800, the gathered data were analysed using frequency and percentage, mean item score, normalisation value, coefficient of variation, Kendall’s coefficient of concordance, analysis of variance and factor analysis.

This study found that the construction experts agreed that building information modelling, blockchain technology, RFID, drone technology and cloud computing are the leading DTs that have the potential to influence and speed up CE transition in construction. Also, six clusters of benefits of DTs in bolstering EC are quicken CE transition, proactive waste management, recycling and zero waste, data management and decision-making, enhance productivity and performance and resource optimisation.

Studies on the integration of DTs in CE transition are scarce and it is even lacking in the Nigerian context. To the best of the authors’ knowledge, this study is the first to assess the role of DTs in CE transitioning in the Nigerian construction industry.

Recent research suggests that multi-component and contextualized interventions are a good option for the treatment of children with ADHD. The primary goal of the present investigation was to examine the efficacy of a multi-component psychosocial intervention involving children, with ADHD, their parents and their teachers. Forty-two children with ADHD were distributed in two groups: one with 27 children who received the intervention (experimental group) and the other with 15 children who received no intervention (control group). The effects of the intervention program were evaluated in three basic developmental areas: school learning, emotional adjustment and social adjustment. Once the intervention was over, the learning problems of children with ADHD who participated in the intervention were significantly reduced, based on the observations of both parents and teachers. Furthermore, social adjustment of the treated group improved significantly at the posttest evaluation. In contrast, in the group of children with ADHD who did not receive treatment, the learning and social problems remained stable.

Fundamental analysis is aimed at assessing the intrinsic value of companies based on publicly available accounting information. Thus, the main purpose of fundamental analysis research should be identifying the main determinants of value, establishing empirical relations between them and fundamental accounting variables, and finally, predicting the future behavior of such variables to estimate the value of the firm. Traditional fundamental analysis ignores the existence of some intangible assets, such as intellectual capital, that are currently considered as the main determinants of value. Human capital is an essential component of intellectual capital. This paper provides evidence on the extent to which the quality of human resources is related to the value of accounting variables that are used in fundamental analysis due to their perceived usefulness as proxies for investors' expectations on the firm's future profitability and growth in both, earnings and shareholders' equity.

This paper aims to study possible differences between the Outstanding Universal Value (OUV) defined in the designation of Cuenca as a World Heritage (WH) site and its inhabitants' perceptions of heritage value. The study is based on research conducted in the historic centre of Cuenca in Ecuador, which was accorded WH status in 1999.

The research employs both quantitative and qualitative methodologies, providing a complementary approach to the research subject. Quantitative research involved a probability survey of 400 informants randomly selected from the population of the canton of Cuenca, while qualitative research included 40 semi-structured interviews with residents and traders in the historic centre and 150 further written consultations with residents of the city.

Following the introduction, methodology and description, the paper presents the data gathered from the survey and interviews. These indicate inhabitants' perceptions of the meaning, values, and uses of WH in Cuenca and reveal differences between their perceptions and those of the official OUV.

Although there are several studies on WH residents' perceptions of UNESCO OUV, few highlight the mismatch between local community views of heritage and those established by UNESCO. This study reflects critically on the concept of OUV, which is based on technical and political criteria rather than social participation. The study employs methodologies that could be applied in other case studies and used to improve heritage management. This is the only study on local perceptions of Cuenca's OUV.