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Open Access
Article
Publication date: 16 March 2022

Michael Leumüller, Karl Hollaus and Joachim Schöberl

This paper aims to consider a multiscale electromagnetic wave problem for a housing with a ventilation grill. Using the standard finite element method to discretise the apertures…

Abstract

Purpose

This paper aims to consider a multiscale electromagnetic wave problem for a housing with a ventilation grill. Using the standard finite element method to discretise the apertures leads to an unduly large number of unknowns. An efficient approach to simulate the multiple scales is introduced. The aim is to significantly reduce the computational costs.

Design/methodology/approach

A domain decomposition technique with upscaling is applied to cope with the different scales. The idea is to split the domain of computation into an exterior domain and multiple non-overlapping sub-domains. Each sub-domain represents a single aperture and uses the same finite element mesh. The identical mesh of the sub-domains is efficiently exploited by the hybrid discontinuous Galerkin method and a Schur complement which facilitates the transition from fine meshes in the sub-domains to a coarse mesh in the exterior domain. A coarse skeleton grid is used on the interface between the exterior domain and the individual sub-domains to avoid large dense blocks in the finite element discretisation matrix.

Findings

Applying a Schur complement to the identical discretisation of the sub-domains leads to a method that scales very well with respect to the number of apertures.

Originality/value

The error compared to the standard finite element method is negligible and the computational costs are significantly reduced.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 41 no. 3
Type: Research Article
ISSN: 0332-1649

Keywords

Open Access
Article
Publication date: 15 April 2022

Mari Ysela Noopila and Henrietta Williams Pichon

This scholarly paper explores leadership education across Hispanic Serving Institutions (HSIs) in the Southwest of the United States. We searched for inclusion of social justice…

Abstract

This scholarly paper explores leadership education across Hispanic Serving Institutions (HSIs) in the Southwest of the United States. We searched for inclusion of social justice, ethics, and community engagement aspects within leadershipprograms.LeadershipeducationprogramsinhighereducationandspecificallyatHSIsmustbeintentional about offering programs, curriculum, and experiences that adopt inclusion of those who are underrepresented within the leadership realm. While scholarship concerning HSIs as complex organizations has grown, consideration of how leadership education programs contribute to truly serving their unique students is still in its infancy. This inquiry found that there are a number of similarities among leadership programs at HSIs in the way of academic location, degree offerings, and class format, but it also details missing characteristics of social justice, ethics, and community engagement within these areas. We propose that through further examination and future research, a framework of leadership education with underpinnings of social justice, ethics, and community engagement can be beneficial in truly serving underserved and underrepresented student populations specifically at HSIs.

Details

Journal of Leadership Education, vol. 21 no. 2
Type: Research Article
ISSN: 1552-9045

Open Access
Article
Publication date: 15 October 2022

Graziella Pagliarulo McCarron and Aoi Yamanaka

According to the U.S. Department of Education’s National Center for Education Statistics, in the fall of 2020, 72.8% of U.S. postsecondary students were enrolled in distance…

Abstract

According to the U.S. Department of Education’s National Center for Education Statistics, in the fall of 2020, 72.8% of U.S. postsecondary students were enrolled in distance education courses—up from 36.3% in the fall of 2019. While this surge may be explained by a number of factors, one of the most significant factors is the COVID-19-induced pivot to online learning. The rapid and intense expansion in distance education due to COVID-19 offered learners some sense of continuity in their studies, but it also revealed stark inequities in learner resources and access—especially for students of Color and students from lower-income households. Further, as COVID-19 spread, the U.S. roiled in a “twin pandemic” of racial injustice that continued to metastasize—spawning more pain-points such as online environments where racism became unmasked when face-to-face norms were abandoned. These revelations about the shadow side of online learning are particularly concerning in the context of leadership education and its commitment to inclusion, collaboration, and holism. Given this new context for online leadership education, the purpose of this piece is to reflect on how the Journal of Leadership Education has shepherded the journey of online leadership education and what the future of this journey might look like for online leadership educators committed to change. Scaffolded by the Community of Inquiry model, we offer promising practices that address cognitive, social, teaching, and learner presence in the pursuit of culturally relevant/sustaining and equitable online leadership education.

Details

Journal of Leadership Education, vol. 21 no. 4
Type: Research Article
ISSN: 1552-9045

Open Access
Article
Publication date: 12 June 2023

Flavio Boccia, Letizia Alvino and Daniela Covino

Packaging and labelling have become essential to how food manufacturers generate and deliver value to customers. The information displayed on the packaging can be used to…

1532

Abstract

Purpose

Packaging and labelling have become essential to how food manufacturers generate and deliver value to customers. The information displayed on the packaging can be used to communicate to customers the properties and unique characteristics of a food product (e.g. nutrients, calories and country of origin). To achieve communication goals effectively, manufacturers need to understand how consumers evaluate products based on their attributes. In particular, companies should be aware of which specific product attributes affect consumer buying behaviour and which product attributes are more critical during food assessment. So, the paper aims to investigate consumer's behaviuor linked to typical product attributes indicated on the packaging.

Design/methodology/approach

The present study examines consumer willingness to pay (WTP) for a cherry jam with different attributes (brand, type of production method and price) on a sample of 2,166 Italian respondents through a choice experiment using a random parameter logit-error component model.

Findings

The results showed that WTP for jams can be affected by attributes such as brand, price and production methods; precisely, they indicated that the level of naturalness in the production process constitutes the main element for the consumer’s choice; however, the considerable weight that price and brand have in influencing the purchasing behaviour of the food consumer was still confirmed: in fact, a p-value of less than 0.05 was found in all cases.

Originality/value

To the best of the authors’ knowledge, this is the first study that assesses the effect of different types of production on WTP for food products. In addition, this study also reflects on the importance of the level of education for consumer choice.

Details

Nutrition & Food Science , vol. 54 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

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