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The aim of this article is to propose a methodology for the design and operation of a just‐in‐time coordination mechanism to control the flow of materials in the supply chain.

A literature review of the problem is presented and a new supply chain coordination mechanism is then proposed.

The paper reveals that the one aspect not deeply studied yet in the supply chain management is their short‐term control. A simple kanban coordination mechanism demonstrates that is practical in the flow coordination of materials among the different nodes (companies) in a supply chain.

This paper shows recent approaches in the supply chain context, useful to companies looking forward new opportunities in coordination systems for the supply chain.

The paper begins with a review of previous research in the material flow control in the supply chain. The authors then propose a new mechanism and an optimization methodology to deal with the coordination mechanism.

The purpose of this paper is to evaluate the extreme pressure properties of CuO and TiO₂ nanoparticle additives with the incorporation of a surfactant within a synthetic fluid for metal-forming applications.

The paper studies the effect of CuO and TiO₂ nanoparticle additives at various concentrations (0.01, 0.05 and 0.10 wt. per cent) in a synthetic lubricant fluid under extreme pressure conditions. Oleic acid surfactant is added to the nanolubricant to improve dispersion and stability of nanoparticles. Extreme pressure tribological tests are performed on a four-ball T-02 tribotester according to the ITEePib Polish method for testing lubricants under conditions of scuffing.

The results show that the addition CuO and TiO₂ nanoparticles under the presence of OA resulted in an increase of the load-carrying capacity (poz) of the lubricant up to 137 and 60 per cent, respectively. The seizure load was also increased by 50 and 15 per cent, respectively.

The results show that CuO and TiO₂ nanoparticles can be successfully used as additives improving extreme pressure properties of lubricants.

This demonstrates the potential of nanoparticle additives using surfactants for improving the extreme pressure properties of lubricants. These nanolubricants can be used for metal-forming applications like deep-drawing, achieving an increased tool life.

Brazilian federalism was important in the political game of combating the pandemic for three reasons. First, Brazil's public health system depends heavily on intergovernmental relations between Union, states, and municipalities because there is a policy portfolio based on federative cooperation. Second, the subnational governments' autonomy to act against COVID-19 was constantly questioned by the Federal Government – the conflict between the President and governors was a key piece in all health policy. Finally, states and local governments were primarily responsible for policies to fight against pandemic, but the absence and/or wrong measures taken by the Federal Government (such as the delay in purchasing vaccines) generated intergovernmental incoordination, increased territorial inequality, and reduced the effectiveness of subnational public policies, especially those linked to social isolation. In this context, Brazilian federalism played a dual role in the pandemic. On the one hand, the federative structure partially succeeded in averting an even worse scenario, mitigating the impact of mistaken presidential decisions. The role of subnational governments, especially of the states, was critical as a counterweight to federal decisions. On the other hand, the President actively acted against governors and mayors and, above all, sought to weaken intergovernmental articulations within the Unified Health System (SUS), the federative model designed three decades ago. One could say that the federative actors, such as the Supreme Court (Supremo Tribunal Federal – STF) and subnational governments, were the main obstacles for the Bolsonarist antiscientific agenda. The success of this reaction to President Bolsonaro's negationist populism was partial, but the results of the fight against COVID-19 would have been much worse without these federalist barriers.

This study aims to identify Critical Success Factors (CSFs) for tourism route development and proposes a tailored conceptual model. It addresses a comprehensive range of tourism routes, considering their respective goals and performance.

The authors applied a qualitative approach to investigate five tourism routes, interviewing 31 current and former members and examining secondary data from organisational documents. A conceptual model was developed through content analysis of transcripts and secondary data.

Based on the identified CSFs, the model is organised into six components: Product, Goals, Resources, Governance, Activities and Performance assessment.

The study analyses various tourism routes concerning their products, implementation levels, goals, performance and perceived success.

Most respondents are public authorities from European countries. Besides, consideration should be given to developing quantitative research to validate the derived theory.

The model may facilitate participants in enhancing and developing tourism routes, thereby contributing to achieving sustainable development goals related to rural-urban connections and tourism partnerships.

The development of tourism routes is expected to impact socio-economic development in rural/peripheral areas positively.

本研究旨在确定旅游线路开发的关键成功因素 (CSFs), 并提出量身定制的概念模型。本文提出了一系列旅游线路, 考虑了各自的目标和绩效。

我们采用定性方法探究了五条旅游线路, 采访了 31 名现任和前任成员, 并检查了组织文件中的二手数据。通过对记录和二手数据的内容分析, 开发了一个概念模型。

根据识别的关键成功要素, 该模型分为六个部分：产品、目标、资源、治理、活动和绩效评估。

本研究分析了各种旅游线路的产品、实施水平、目标、绩效和感知成功。

大多数受访者是来自欧洲国家的公共当局。此外, 还应考虑开展定量研究来验证所得出的理论。

该模型可帮助参与者改善和发展旅游路线, 从而有助于实现与城乡联系和旅游伙伴关系相关的可持续发展目标。

旅游路线的发展预计将对农村/边缘地区的社会经济发展产生积极影响。

Esta investigación se centra en diversas tipologías de rutas turísticas, buscando identificar Factores Críticos de Éxito (FCE) y proporcionar un modelo conceptual adaptado.

Aplicamos un enfoque cualitativo para investigar cinco rutas turísticas. Entrevistamos a 31 miembros y examinamos datos secundarios de documentos organizativos. Se desarrolló un modelo conceptual mediante el análisis de contenido de transcripciones y datos secundarios.

Basado en los FCE identificados, el modelo está organizado en seis componentes: Producto, Objetivos, Recursos, Gobernanza, Actividades y Evaluación del desempeño.

El estudio analiza diversas rutas turísticas en relación con sus productos, ubicaciones y nivel de implementación, así como los objetivos, rendimiento y éxitos percibidos de los involucrados.

La mayoría de los encuestados son autoridades públicas de países europeos. Se debe considerar el desarrollo de investigaciones cuantitativas para validar la teoría derivada de este estudio.

El modelo puede potencialmente ayudar a los participantes a mejorar y desarrollar rutas turísticas, contribuyendo así a lograr los objetivos de desarrollo sostenible relacionados con las conexiones rural-urbanas y las asociaciones turísticas.

Se espera que el desarrollo de rutas turísticas tenga un impacto positivo en el desarrollo socioeconómico en áreas rurales/periféricas.

The aim of this research is to gain insight into the emotional impact and cognitive evaluations that these applications have on users from their own perspective.

Sentiment analysis methodology is used to analyze users’ comments and ratings, assess perceived benefits and determine the emotional impact these applications have on them.

The results suggest a benefit for happiness scholars, professionals, users and organizations focused on employee well-being and provide valuable insights into the evolving landscape of happiness applications. While the study relies on publicly available user data, it complements, but does not replace, market research or product evaluation conducted by app developers and companies.

Among the myriad channels disseminating the assumption that the good life is attainable through personal means and psychological know-how, smartphone applications have emerged as accessible, cost-effective and attractive tools to help users become happier and alleviate feelings of distress and discomfort.

This study aims to contribute to the current and well-documented phenomenon of hysteresis in the US economy after the Great Financial Recession. Compelling reasons lead me to believe that Verdoorn's law can be used to explain this phenomenon by relating hysteresis to a fall in the size of returns to scale of the whole economy.

Verdoorn's law is estimated using a time-varying regression model that employs Bayesian methods to examine the evolution of the Verdoorn coefficient. The investigation uses a bivariate time-varying model to estimate long-run growth rates of output and productivity while controlling for potential endogeneity problems.

The study finds substantial variation in the Verdoorn coefficient across time as well as a significant fall of it in the onset of the Great Financial Recession, which confirms the presence of hysteresis in the US economy. Additionally, it also finds a fall in the size of productivity shocks, and in the long-run growth rates of output and productivity according to previous studies.

The empirical investigation uses, novel to the literature on Verdoorn's law to date, a bivariate time-varying regression model with stochastic volatility. It also employs quarterly productivity data for a considerably long period, which to my knowledge, has not been used by previous works. Most importantly, this approach contemplates positive hysteresis––typically neglected––which provides a less bleak panorama.

The excess of tourism in some destinations has led to the discussion of overtourism. One of the sectors that most interacts with tourism is retail, a key element in the experience lived by tourists. The purpose of this paper is to analyse how retail evolves in a context of an overtourism city, how it relates with touristification and what are the elements that best characterise such evolution and relation.

This research is based on a case study, using the main historic city centre of Lisbon for that purpose. Fieldwork was developed by the author to collect information about the commercial fabric and its main characteristics.

The findings show a clear adaptation of the commercial fabric of the analysed area to the tourism industry. Furthermore, the author unfolded that the change of retail is towards a consumption environment based on leisure, involving the adaptation of the public space into terraces, and on the thematisation of stores, using elements seen as “authentically” Portuguese, which bestows on theses spaces a sort of certification of quality and authenticity.

The mere reference to the homogenisation of the retail fabric is too simple to explain the richness and variety of elements imbedded in the process of retail change in a context of excessive tourism and touristification. In this paper, the author produced novel knowledge by analysing the elements that embody the evolution of retail in such a context.

Research on Science parks (SPs) has attracted a growing interest in the last decades. This widespread innovation policy initiative pursues technology-based industrial and entrepreneurial growth through business development and technology transfer across new and mature firms. Despite the common agreement on SPs' potential benefits, literature have showed mixed results regarding the performance of SPs. To explain this findings, current research pointed out at the lack of a common guiding framework. To cover this knowledge gap, this manuscript proposes an integrative definition and research model together with a multidimensional measurement instrument suitable to encompass the diverse reality of this global phenomenon.

Based on a systematic literature review of 281 indexed journal articles published between 1990 and 2018, the paper provides an integrative framework of enabling factors of SPs' performance.

The results illustrate an integrative conceptual framework of SPs that allows further comparison and generalization of research. At the same time, this manuscript provides valuable insights for managers and entrepreneurs as it conveys a standardized view of SPs' internal context useful for benchmarking.

Grounded in the resource-based view (RBV), the paper conducts a thorough literature review to develop an integrative research model featuring three value streams: physical infrastructures, formal links and support services. In addition, a multidimensional measurement tool to operationalize these three dimensions is proposed.

Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental condition with community prevalence globally of 2%–7% (M = 5%; Sayal et al., 2018). Clinicians are routinely encouraged to explain to children and young people the benefits of a healthy lifestyle, including exercise (NICE NG87, 2018). Exercise has been proposed as a safe and low-cost adjunctive approach for ADHD and is reported to be accompanied by positive effects on several aspects of executive functioning (EF). The purpose of this narrative review was to synthesise the contemporary randomised control trial (RCT) studies that examine the effect of sport, physical activity and movement on EF in children and adolescents with ADHD.

A narrative review approach with a systematic literature search using PRISMA guidelines for screening and selecting relevant systematic reviews was used. The final review included four peer-review systematic reviews (>2019).

The results identified four RCT meta-analyses and findings showed that children and adolescents with lower baseline cognitive performance demonstrated greater improvements in functioning after physical activity interventions, particularly for tasks with higher executive function demands, where baseline performance reaches an optimal level. Findings suggest that 10–20 min of acute moderate-high-intensity exercise interventions (cycling/running) appeared to have positive effects on indices of inhibitory control. Preliminary evidence suggests that as little as 5 min of jumping exercises improved inhibitory control. Sixty to eighty minutes of moderately intense, repeated (chronic) exercise appeared to demonstrate the greatest beneficial impact on selective attention.

To the best of the authors’ knowledge, this review is the first to present the extant literature on the effect of physical activity and sport on symptoms of young people with ADHD. It presents evidence to suggest that exercise with progressively increasing cognitive demands may have positive effects for children with ADHD, specifically in terms of improving cognitive flexibility. Further large-scale clinical trials are needed to confirm the positive effects of physical exercise on cognitive functioning in children with ADHD.