María Zamarreño Suárez, Rosa María Arnaldo Valdés, Francisco Pérez Moreno, Raquel Delgado-Aguilera Jurado, Patricia María López de Frutos and Víctor Fernando Gómez Comendador
Air traffic controllers (ATCOs) play a fundamental role in the safe, orderly and efficient management of air traffic. In the interests of improving safety, it would be beneficial…
Abstract
Purpose
Air traffic controllers (ATCOs) play a fundamental role in the safe, orderly and efficient management of air traffic. In the interests of improving safety, it would be beneficial to know what the workload thresholds are that permit ATCOs to carry out their functions safely and efficiently. The purpose of this paper is to present the development of a simulation platform to be able to validate an affective-cognitive performance methodology based on neurophysiological factors applied to ATCOs, to define the said thresholds.
Design/methodology/approach
The process followed in setting up the simulation platform is explained, with particular emphasis on the design of the program of exercises. The tools designed to obtain additional information on the actions of ATCOs and how their workload will be evaluated are also explained.
Findings
To establish the desired methodology, a series of exercises has been designed to be simulated. This paper describes the project development framework and validates it, taking preliminary results as a reference. The validation of the framework justifies further study to extend the preliminary results.
Research limitations/implications
This paper describes the first part of the project only, i.e. the definition of the problem and a proposed methodology to arrive at a workable solution. Further work will concentrate on carrying out a program of simulations and subsequent detailed analysis of the data obtained, based on the conclusions drawn from the preliminary results presented.
Originality/value
The methodology will be an important tool from the point of view of safety and the work carried out by ATCOs. This first phase is crucial as it provides a solid foundation for later stages.
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Patricia Penabad‐Duran, Xose M. Lopez‐Fernandez, Janusz Turowski and Pedro M. Ribeiro
The purpose of this paper is to apply a 3D methodology to assess the heating hazard on transformer covers and present a practical tool to design amagnetic inserts arrangement.
Abstract
Purpose
The purpose of this paper is to apply a 3D methodology to assess the heating hazard on transformer covers and present a practical tool to design amagnetic inserts arrangement.
Design/methodology/approach
A practical 3D methodology linking an electromagnetic analytical formulation with thermal finite element method is used for computation. Such methodology allows the evaluation of the temperature on metallic device elements heated by electromagnetic induction. This is a 3D problem which in the case of power transformers becomes especially difficult to apply due to the discretization requirement into the thin skin depth penetration compared to big machine dimensions.
Findings
From the numerical solution of the temperature field, decisions on dimensions and different amagnetic inserts arrangements can be taken to avoid hot spots on transformer covers.
Research limitations/implications
Some parameters presented in the model as heat exchange coefficients and material properties are difficult to determine from formulae or from the literature. The accuracy of the results strongly depends on the proper identification of those parameters, which the authors adjust based on measurements.
Originality/value
Differing from previous works found in the literature, which focus their results in power loss computation methods, this paper evaluates losses in terms of temperature distribution, which is easier to measure and validate over transformer covers. Moreover, an experimental work is presented where the temperature distribution is measured over a steel cover plate and a cover plate with amagnetic insert.
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In 1997, an appellate court in the US issued an important decision in the consolidated appeals of Lopez v First Union National Bank of Florida and Coronado v Bank Atlantic…
Abstract
In 1997, an appellate court in the US issued an important decision in the consolidated appeals of Lopez v First Union National Bank of Florida and Coronado v Bank Atlantic Bancorp., Inc. The decision raises provocative issues concerning the scope of the immunity granted to financial institutions providing information to the federal government about their customers under US laws. In order to understand the impact of this decision, some factual background with respect to each of the cases and the relevant case law is required.
Lucía Rodríguez-Aceves, Marcia Lorena Rodríguez-Aldana and
The study aims to explore the influence of conscious business practices (CBPs) on the reputational capital (RC) of SMEs with the generation of the manager (X/Y) as a moderator of…
Abstract
Purpose
The study aims to explore the influence of conscious business practices (CBPs) on the reputational capital (RC) of SMEs with the generation of the manager (X/Y) as a moderator of such relationships.
Design/methodology/approach
The authors conducted empirical research based on a cross-sectional survey on 115 Western Mexican SME managers using PLS structural equation modeling to test the proposed hypotheses.
Findings
SMEs RC is nurtured by adopting two CBPs. The effect on RC may differ according to managers’ generation. In Western Mexican SMEs, Gen X managers perceive that a higher purpose is more important for building RC, while conscious culture comes first for millennials.
Research limitations/implications
The generalisability of the findings is decreased, given that the study relied on convenience and non-probabilistic sampling in one economy. The lack of previous studies on SMEs, and the difficulty in conducting research in an emerging economy, gives the findings an importance in furthering research.
Practical implications
It contributes to strengthen SMEs’ RC through CBPs.
Social implications
It broadens the perspective of SMEs in emerging economies to adopt CBPs for increasing their RC. This relationship varies depending on the managers’ generation.
Originality/value
The study used the quantitative approach to explore the perception of Mexican Gen X managers and millennials on the relationship between CBPs and their effects on RC.
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Stacia Maher, Patricia Lopez, M. Diane McKee, Darwin Deen, Alice Fornari, Jason Fletcher and Arthur Blank
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…
Abstract
Purpose
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.
Design/methodology/approach
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.
Findings
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.
Originality/value
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.
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Set in a Mexican-American community of a US Gulf Coast state, the purpose of this paper was to describe how three young siblings and their family members constructed their…
Abstract
Purpose
Set in a Mexican-American community of a US Gulf Coast state, the purpose of this paper was to describe how three young siblings and their family members constructed their spiritual, ethnic and communicative identities within the context of a virtual family literacy program during COVID-19.
Design/methodology/approach
This project was approached as an illustrative case study that focused on one family’s engagement with a children’s book in which the protagonists retell the legend of the Catholic patroness of the Americas, Our Lady of Guadalupe.
Findings
The case study illustrates how the children's spiritual/religious identities were inseparably intertwined with their home literacy practices and their identities as communicators with others. The children’s everyday spiritual/religious practices, routines and activities motivated familial conversations and dialogue that engage and support children’s literacy development.
Originality/value
Although there is a large corpus of scholarship about secular early literacy program for families with preschool children, there are few that describe the recognition and inclusion of families’ spiritual/religious identities.
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Kenna Cottrill, Patricia Denise Lopez and Calvin C. Hoffman
The purpose of this paper is to examine perceptions of inclusion and related factors, to understand how organizations can encourage and facilitate the full participation of…
Abstract
Purpose
The purpose of this paper is to examine perceptions of inclusion and related factors, to understand how organizations can encourage and facilitate the full participation of employees. The research explored authentic leadership (AL) as an antecedent of inclusion, and two outcomes, organization-based self-esteem (OBSE) and organizational citizenship behavior (OCB).
Design/methodology/approach
Using an online survey, data were collected from 107 primary and 219 peer participants in various industries throughout the USA. Primary participants provided perceptual ratings on inclusion, AL, OBSE and OCB. Co-workers assessed primary participants’ OCB.
Findings
AL was positively related to inclusion (β=0.58, p<0.01) as well as self-rated OCB (β=0.36, p<0.01). Inclusion was positively associated with OBSE (β=0.48, p<0.01) and self-rated OCB (β=0.63, p<0.01). Inclusion mediated the relationship between AL and self-rated OCB. OBSE mediated the relationship between inclusion and self-rated OCB. All analyses controlled for the effects of race and gender.
Practical implications
Results suggest organizations can promote inclusive environments through AL, and that inclusive environments promote employees’ work-related self-esteem and their willingness to go above and beyond in their jobs.
Originality/value
This paper examines previously unstudied relationships, thus contributing to organizational theory and practice.
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This case features Lucas Lopez Lince, a rising leader in Colombian consumer goods company Grupo Familia. Lopez Lince had inherited a digital marketing program built around a newly…
Abstract
This case features Lucas Lopez Lince, a rising leader in Colombian consumer goods company Grupo Familia. Lopez Lince had inherited a digital marketing program built around a newly identified customer persona–a young low-income mother. The program represented a significant shift in Familia's target customer as well as a shift in the way marketing funds were spent. The program appeared to be working, so he increased the digital spend even as he had to reduce his overall marketing budget in the face of challenging economic headwinds. Activity metrics such as page views, social media “likes,” and video views rose dramatically, and at the same time sales began to rise again. By the beginning of 2017, Lopez Lince faced a deeper set of questions. How could he be certain that the rising sales were due to the digital efforts? Would the existing digital programs and tactics continue to deliver against chosen metrics? And what could he do next in order to continue driving growth of revenue and margin through digital efforts? Students assume the role of Lopez Lince and are asked to apply concepts such as customer personas, micro-moments, and customer journey mapping to develop their own point of view on what they would do next.
Details
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Keywords
Juan Daniel Trejos, Luis Arturo Reyes, Carlos Garza, Patricia Zambrano and Omar Lopez-Botello
An experimental and numerical study of thermal profiles of 316 L stainless steel during selective laser melting (SLM) was developed. This study aims to present a novel approach to…
Abstract
Purpose
An experimental and numerical study of thermal profiles of 316 L stainless steel during selective laser melting (SLM) was developed. This study aims to present a novel approach to determine the significance and contribution of thermal numerical modeling enhancement factors of SLM.
Design/methodology/approach
Surface and volumetric heat models were proposed to compare the laser interaction with the powder bed and substrate, considering the powder size, absorptance and propagation of the laser energy through the effective depth of the metal layer. The approach consists in evaluating the contribution of the thermal conductivity anisotropic enhancement factors to establish the factors that minimized the error of the predicted results vs the experimental data.
Findings
The level of confidence of the carried-out analysis is of 97.8% for the width of the melt pool and of 99.8% for the depth of the melt pool. The enhancement factors of the y and z spatial coordinates influence the most in the predicted melt pool geometry.
Research limitations/implications
Nevertheless, the methodology presented in this study is not limited to 316 L stainless steel and can be applied to any metallic material used for SLM processes.
Practical implications
This study is focused on 316 L stainless steel, which is commonly used in SLM and is considered a durable material for high-temperature, high-corrosion and high-stress situations.
Social implications
The additive manufacturing (AM) technology is a relatively new technology becoming global. The AM technology may have health benefits when compared to the conventional industrial processes, as the workers avoid extended periods of exposure present in conventional manufacturing.
Originality/value
This study presents a novel approach to determine the significance and contribution of thermal numerical modeling enhancement factors of SLM. It was found that the volumetric heat model and anisotropic enhancement thermal approaches used in the present research, had a good agreement with experimental results.