Search results

Purpose – The purpose of this paper is to illustrate the advantages of using the UCLP software for network operators, advanced and regular end users in the research networking community. Design/methodology/approach – This paper provides an example of the deployment of UCLP in the GÉANT2/National Research and Education Networks (NRENs) scenario, and compares how network operators, advanced users and regular end users would do their work, with and without UCLP. Findings – The paper provides high‐level technical information about UCLP as well as depicting the drivers for its use in the European research networking community. Research limitations/implications – This paper does not explain the details of the deployment of the software in the GÉANT2/National Research and Education Networks (NRENs) scenario, it just explains the benefits that the deployment of the software would provide. If the deployment was to be done today, some improvements to UCLP should be done, as well as support for more equipment vendors should be added. Practical implications – UCLP could provide more flexibility to the e‐science community if it was deployed over the European research networking infrastructure, because it would isolate network users from each other while providing them an unprecedented degree of control over the network. Originality/value – Nowadays, several control/management solutions for networks exist, but none that is capable of partitioning a physical network into slices and handoff its management to the users, like UCLP does. This is the first UCLP paper that studies a hypothetical deployment of UCLP in the European research networking scenario, and evaluates the drivers and implications of such a deployment.

The aim of this chapter is to explore the gender dynamics of the juncture of migration and health in the case of Ecuadorean migrations to Spain, the United States, and back.

By building on a feminist intersectional take on the social determination of health as defined by Latin American critical epidemiology, the project was designed within an activist research framework, and data were collected transnationally from 2015 to 2019 via surveys, individual and group interviews, participant observation in health and migration workshops and trainings for migrant communities, advocates, and health practitioners.

Our study identified and conceptualized various health processes and psycho-sociocultural coping mechanisms that migrants and relatives traversed and employed and pointed to how they manifested their agency in sustaining, reinforcing, and challenging dominant heteropatriarchal gender regimes.

While the findings cannot be generalized to all Ecuadorean migrants given sampling limitations, our research can help migrant communities further understand how their health and well-being may be affected by migration and, in turn, take precautionary and restorative measures.

The combination of various critical theories allowed us to uncover how migration as a risk factor affected the health of migrants, nonmigrating relatives and returnees in a nuanced and complex manner that traversed disciplinary silos and challenged both the mainstream biomedical approach, which typically exoticize, demean, and/or marginalize migrant health, and the literature's tendency to code migrants as victims as opposed to recognizing their protagonism.

The paper aims to evaluate a primary care obesity prevention intervention, targeting low‐income minority parents in the USA. The first objective is to describe the barriers to behavior change experienced by families. The second objective is to understand the types of strategies that were used by the health educator to empower families to engage in healthy behavior changes.

Qualitative methods were used to conduct a content analysis of the intervention's instruments and health educator's notes on counseling sessions. Demographic data were collected from the patient information system.

Households were 80 percent Hispanic and 17 percent African American. A total of 26 percent of the children were overweight or obese. Themes identified were poor parenting skills, which included sub themes of picky eating, food‐related tantrums, bottle feeding, and submitting to unhealthy food requests; poor knowledge and skills regarding healthy eating; and psycho/social issues acting as barriers to healthy eating, including sub themes of housing issues, parental unemployment and intergenerational conflict regarding food choices.

There are few family‐based obesity prevention interventions, especially in low‐income minority communities. This study found that parents are interested in improving the intake of healthy foods for their families; however, they face substantial barriers. This study supports enhanced health assessment as part of the preschool preventive visit. The authors also found that a skilled, culturally competent, health educator is essential to extend counseling beyond the brief encounter with physicians, as well as advocacy for systematic and policy level changes, to address the complex context in which behavior change can occur.

The authors present the application of the López-Fresno approach in designing an integrated management system (IMS) for an aviation company to the development of an IMS in a government-run organization responsible for the medical evaluation of work disabilities. The purpose of this paper is to share the design process, with the intention of showing that this approach is applicable to other sectors and proposing generalization and applicability strategies to other smaller government entities.

The study involves two phases. Phase I applies the López-Fresno approach to design a basic IMS-I and ends with a European Foundation for Quality Management (EFQM) evaluation, whose suggestions were taken into consideration for the final design of IMS-II during phase II. The data were obtained from the organization's own functioning. There was a significant degree of personal involvement by the authors, external consultants and members of the management committee in areas ranging from the approach itself to the various components analyzed.

The approach led to a better use of human and material resources and produced various advances in both internal and external communication and significant progress in employee motivation in their dealings with users and stakeholders.

The study offers guidelines and recommendations for designing an IMS adapted to small, compact, administrative organizations that operate with stakeholders with highly disparate outlooks and interests, with different quality levels, in a context related to competitiveness and economic development.

Users contribute to online communities by posting and responding to discussion threads. Nonetheless, only a small fraction of threads gain popularity and shape community discourse. Prior studies have identified several factors driving thread popularity; however, despite their prevalence, the role of emotional expressions within discussion threads remains understudied. This study addresses this gap by investigating the impact of thread starters’ valence and embedded discrete emotions of anger, anxiety and sadness on thread popularity, drawing on the negativity bias and the emotion-as-social-information theories.

Using two samples from Reddit, this study employs negative binomial regression analysis to examine the hypothesized relationships.

The results demonstrate that negativity in thread starters significantly influences thread popularity; however, the expression of discrete emotions impacts popularity variously. In some contexts, such as COVID-19 vaccination subreddits, embedded anger in thread starters decreases thread popularity, whereas anxiety and sad expressions enhance it. In other contexts, such as professional discussions (e.g. r/Medicine subreddit), anger and anxiety expressions increase thread popularity, while sad expressions have no significant influence.

The study is limited by its focus on specific emotions and contexts. Future research could examine a broader range of emotions, post-content modalities and the impact of cultural and linguistic differences.

This study contributes to theory by offering a new definition of thread popularity and enhancing our understanding of the impact of emotions in online discussions. It also provides practical implications for online community members and moderators seeking to promote discussion posts that help achieve community goals.

In an online shopping environment, individual reviews and aggregated ratings are important anchors for consumers’ purchasing decisions. However, few studies have considered the influence of aggregated ratings on consumer decision-making, especially at the neural level. This study aims to bridge this gap by investigating the consumer decision-making mechanism based on aggregated ratings to uncover the underlying neural basis and psychological processing.

An event-related potential experiment was designed to acquire consumers’ electrophysiological records and behavioral data during their decision-making processes based on aggregated ratings. The authors speculate that during this process, review valence categorization (RVC) processing occurs, which is indicated by late positive potential (LPP) components.

Results show that LPP components were elicited successfully, and perceptual review valence can modulate its amplitudes (one-star [negative] and five-star [positive] ratings evoke larger LPP amplitudes than three-star [neutral] ratings). The electroencephalogram data indicate that consumer decision-making processes based on aggregated ratings include an RVC process, and behavioral data show that easier review valence perception makes the purchase decision-making easier.

This study enriches the extant literature on the impact of aggregated ratings on consumer decision-making. It helps understand how aggregated ratings affect consumers’ online shopping decisions, having significant management implications. Moreover, it shows that LPP components can be potentially used by researchers and companies to evaluate and analyze consumer emotion and categorization processing, serving as an important objective physiological indicator of consumer behavior.

This paper aims to celebrate the 100th anniversary of Einstein's works, published in 1905.

The paper presents a brief appraisal of Einstein's work.

The paper reminds the reader of the 1905 discoveries, such as photoelectric phenomena, special theory of relativity and Brown's motions.

The paper deals with the problem of how Einstein's concept contradicts or follows the Faraday concept of electromagnetic fields.

Barabási‐Albert and small‐world networks. In this model, the order‐disorder phase transition of the order parameter is well defined on small‐world networks. We calculate the value of the critical temperature Tc for several values of rewiring probability p of the directed small‐world network. For directed small‐world networks we obtained a second‐order phase transition for p = 0.2 and first‐order phase transition for p = 0.8. On directed Barabási‐Albert we show that phase transition do not exist for Ising model with spin S = 1, 3/2 and 2.

Construction Hazard Prevention through Design (CHPtD) is recognized as a pivotal strategy for enhancing workplace safety. Despite its theoretical potential, practical implementation faces challenges, particularly regarding designers' familiarity with field-level operations and hazard recognition. This study aims to investigate whether ChatGPT can address these challenges by assisting in hazard recognition during CHPtD sessions.

The research utilized a randomized controlled experiment to assess ChatGPT as an intervention in supporting hazard recognition during CHPtD sessions. The study involves 162 civil and construction engineering student participants, representing future professionals. Participants engaged in hazard recognition during CHPtD sessions either with or without the assistance of ChatGPT.

Participants who utilized ChatGPT during CHPtD sessions demonstrated a significant improvement in hazard recognition, identifying approximately 40% more hazards compared to those who did not use ChatGPT. These findings underscore the efficacy of ChatGPT in supporting CHPtD efforts.

The results highlight the practical utility of harnessing ChatGPT in CHPtD sessions to enhance hazard recognition and ultimately promote workplace safety. By leveraging ChatGPT, designers and engineers can better anticipate and mitigate potential hazards during the design phase, thus creating a safer working environment for field workers.

This research contributes to addressing the challenges associated with implementing CHPtD by introducing ChatGPT as a valuable tool to support hazard recognition. By demonstrating the effectiveness of ChatGPT in enhancing hazard identification during CHPtD sessions, this study offers a novel approach to promoting the adoption of CHPtD and advancing workplace safety initiatives.

This paper uses the case of the English East India Company to consider the impact of colonialization on patterns of trade. The East India Company went through a commercial and a colonial period in Asia and therefore provides a rare case in which fixed national effects are held constant while the degree of colonialism varies. We use this variation to consider the impact of colonial institutions on the degree of concentration in overseas trade. We find that the onset of colonialism is linked to increasing inequality in the distribution of traffic across ports. This finding is significant because of the relationship between overseas trade and the potential for long-term economic development: the development trajectories of the individual ports were likely to have been affected by these different rates of trade. Our findings also highlight how the negotiation between political and commercial goals in early modern trade and imperialism produced different macro-structural outcomes for global trade patterns.