Clayton Neff, Matthew Trapuzzano and Nathan B. Crane
Additive manufacturing (AM) is readily capable of producing models and prototypes of complex geometry and is advancing in creating functional parts. However, AM processes…
Abstract
Purpose
Additive manufacturing (AM) is readily capable of producing models and prototypes of complex geometry and is advancing in creating functional parts. However, AM processes typically underperform traditional manufacturing methods in mechanical properties, surface roughness and hermeticity. Solvent vapor treatments (vapor polishing) are commonly used to improve surface quality in thermoplastic parts, but the results are poorly characterized.
Design/methodology/approach
This work quantifies the surface roughness change and also evaluates the effect on hermeticity and mechanical property impacts for “as-printed” and acetone vapor-polished ABS tensile specimens of 1-, 2- and 4-mm thicknesses produced by material extrusion (FDM).
Findings
Vapor polishing proves to decrease the power spectral density for surface roughness features larger than 20 µm by a factor of 10× and shows significant improvement in hermeticity based on both perfluorocarbon gross leak and pressure leak tests. However, there is minimal impact on mechanical properties with the thin specimens showing a slight increase in elongation at break but decreased elastic modulus. A bi-exponential diffusion decay model for solvent evaporation suggest a thickness-independent and thickness-dependent time constant with the latter supporting a plasticizing effect on mechanical properties.
Originality/value
The contributions of this work show vapor polishing can have a substantial impact on the performance for end-use application of ABS FDM components.
Details
Keywords
Julia L. Angstmann and Francesca A. Williamson
Service learning is a pedagogical approach that primarily focuses upon achieving student learning outcomes through meaningful community engagement. While service-learning…
Abstract
Service learning is a pedagogical approach that primarily focuses upon achieving student learning outcomes through meaningful community engagement. While service-learning pedagogies provide “service” to community, the view of community partners from a deficit-oriented perspective can render service learning ineffective and, at worst, potentially harmful to the community served. This chapter presents a course that uses food as a civic lens through which to engage community, instructors, and students in CRITICAL-SERVICE-LEARNING where systemic inequities that contribute to community needs are focused upon, community partners are co-creators of course design, outcomes to student learning and community benefits are equitably considered, and collective knowledge and experience of stakeholders is valued.
Details
Keywords
- Critical-service-learning
- community
- place-based
- experiential learning
- systemic inequities
- power
- case study
- food
- farming
- outcomes
- critical reflection
- photovoice
- DEAL model
- deficit-oriented
- co-develop
- reflective facilitator
- experiential continuum
- systems thinking
- design thinking
- scholarly identity
- values
- environmental rift
- social rift
Robert N. Eberhart, Stephen Barley and Andrew Nelson
We explore the acceptance of new contingent work relationships in the United States to reveal an emergent entrepreneurial ideology. Our argument is that these new work…
Abstract
We explore the acceptance of new contingent work relationships in the United States to reveal an emergent entrepreneurial ideology. Our argument is that these new work relationships represent a new social order not situated in the conglomerates and labor unions of the past, but on a confluence of neo-liberalism and individual action situated in the discourse of entrepreneurialism, employability, and free agency. This new employment relationship, which arose during the economic and social disruptions in the 1970s, defines who belongs inside an organization (and can take part in its benefits) and who must properly remain outside to fend for themselves. More generally, the fusing of entrepreneurship with neo-liberalism has altered not only how we work and where we work but also what we believe is appropriate work and what rewards should accompany it.
Details
Keywords
This paper aims to identify religiosity scale usage in academic marketing articles and compare the effectiveness of different religiosity scales in predicting marketing and…
Abstract
Purpose
This paper aims to identify religiosity scale usage in academic marketing articles and compare the effectiveness of different religiosity scales in predicting marketing and consumer behavior outcomes.
Design/methodology/approach
Articles (n = 397) in the top 20 marketing journals are reviewed and a follow-up study is conducted that compares 22 religiosity scales in predicting 18 marketing variables.
Findings
Most scales are from preexisting sources (64.3%), only 20% are multi-dimensional and over 58% are used in only one journal article. Only 22.5% of possible regressions in the follow-up study predicting marketing variables from religiosity scales were significant.
Research limitations/implications
This research is limited by the journals and dependent variables chosen. Implications include diversify research topics, expand publication outlets, decrease use of author-generated scales, increase use of multi-item and multi-dimensional measures, replicate findings methodologically and conceptually and make cultural context adaptations.
Practical implications
Marketers would benefit from using preexisting scales, ensuring that religiosity is measured using a multi-item measure that contains appropriate items for the dominant religious beliefs of the sample, as well as consider multi-dimensional measures to best guide marketing strategy decisions, such as target market definition.
Originality/value
This is the first research study to compare the use of religiosity scales in marketing. This offers key value to the marketing literature by highlighting tactics to take to improve consistency in research practices to increase the comparability and accuracy of findings.
Details
Keywords
Chris I. Enyinda, Alphonso O. Ogbuehi and Chris H. Mbah
The purpose of this paper is to identify key social medial channels which pharmaceutical firms need to consider when desiring to understand consumer behavior, build, maintain and…
Abstract
Purpose
The purpose of this paper is to identify key social medial channels which pharmaceutical firms need to consider when desiring to understand consumer behavior, build, maintain and proactively manage relationships. Also, it proposes the application of analytic hierarchy process (AHP) sensitivity analysis algorithm to test the stability or robustness of the priority ranking. Specifically, this paper leverages performance sensitivity analysis to evaluate how small changes (perturbation) in the major objectives of the pharmaceutical relationship marketing (PRM) tactics within the social media environment will influence the ranking of the alternative course of actions.
Design/methodology/approach
This paper used AHP-based questionnaire survey to evaluate the relative importance of factors accounting for PRM and the impact of social media channels. The major objectives and the alternative strategies used were from literature reviewed. Interviews with senior managers were insightful and helpful in the wording, content and format of the questionnaire.
Findings
Customer engagement is the most important PRM tactic, followed by communication and trust. The performance sensitivity analysis carried out on the PRM tactics showed that the ranking associated with social media channel options remained robust or insensitive to small perturbations.
Research limitations/implications
The data procured for this paper were based on one focal pharmaceutical firm. Convincing the same to grant an interview and late responding to the questionnaire was a great challenge.
Practical implications
Social media impact on pharmaceutical marketing relationship is important for pharmaceutical marketers. PRM bodes well with the social media environment. Pharmaceutical industry can build and maintain relationships with consumers through social media. Firms that leverage social media to enhance their PRM tactics will be viewed favorably in terms of trust, transparency, openness and honesty. The results provide pharmaceutical marketing managers with insightful and valuable information with respect to the role or social media impact on the PRM. The AHP model, objectives and their relative importance provide valuable information for managers on how to monitor the values that matters to customers the most.
Originality/value
This paper is one of the very few on the PRM and perhaps the first that examines social impact leveraging the AHP model. In addition, this paper contributes to the relationship marketing literature by leveraging a multi-criteria decision-making algorithm to prioritize the most important factors accounting for the PRM strategies.
Details
Keywords
Bita Afsharinia and Anjula Gurtoo
The COVID-19 pandemic, starting in early 2020, has significantly compromised global commitment to the 2030 Agenda for Sustainable Development Goals, notably affecting areas like…
Abstract
The COVID-19 pandemic, starting in early 2020, has significantly compromised global commitment to the 2030 Agenda for Sustainable Development Goals, notably affecting areas like food security (SDG 2) and the economy (SDG 8). Informal economy platform employees have been among the most impacted. In India alone, 7.7 million workers in the informal economy have suffered, with nearly 90% of unskilled and semi-skilled workers experiencing income loss. The widespread income loss among a significant portion of the workforce has led to disruptions in demand and supply mechanisms, thereby worsening food insecurity. This study investigates the determinants of the food consumption score (FCS) to serve as an indicator of food security within informal-economy households. A longitudinal survey of 2,830 unskilled and semi-skilled employees, including drivers, domestic workers, delivery personnel, beauticians, street vendors, small business owners, and self-employed individuals, was conducted. The findings show a significant shift towards borderline household FCS during the pandemic, with a sharp decline in daily consumption of dairy products and non-vegetarian items, indicating reduced protein intake. Consuming two or fewer meals per day increases the likelihood of poor FCS, highlighting the need for systematic interventions to ensure three regular meals per day. Moreover, insufficient government support for adequate food intake in informal economy households calls for redesigned assistance programs. Policymakers should prioritize practical solutions, such as community-based food distribution centers and mobile food vans, to ensure the delivery of nutritious food to vulnerable populations in Bangalore.