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This paper aims to investigate the influence of “BroncoCut-X” (copper core-ZnCu50 coating) electrode on the machining of Ti-3Al-2.5V in view of its extensive use in aerospace and medical applications. The machining parameters are selected as Spark-off Time (ST_off), Spark-on Time (ST_on), Wire-speed (S_w), Wire-Tension (WT) and Servo-Voltage (S_v) to explore the machining outcomes. The response characteristics are measured in terms of material removal rate (MRR), average kerf width (KW) and average-surface roughness (SA).

Taguchi’s approach is used to design the experiment. The “AC Progress V2 high precision CNC-WEDM” is used to conduct the experiments with ϕ 0.25 mm diameter wire electrode. The machining performance characteristics are examined using main effect plots and analysis of variance. The grey-relation analysis and fuzzy interference system techniques have been developed to combine (called grey-fuzzy reasoning grade) the experimental response while Rao-Algorithm is used to calculate the optimal performance.

The hybrid optimization result is obtained as ST_off = 50µs, ST_on = 105µs, S_w = 7 m/min, WT = 12N and S_v=20V. Additionally, the result is compared with the firefly algorithm and improved gray-wolf optimizer to check the efficacy of the intended approach. The confirmatory test has been further conducted to verify optimization results and recorded 8.14% overall machinability enhancement. Moreover, the scanning electron microscopy analysis further demonstrated effectiveness in the WEDMed surface with a maximum 4.32 µm recast layer.

The adopted methodology helped to attain the highest machinability level. To the best of the authors’ knowledge, this work is the first investigation within the considered parametric range and adopted optimization technique for Ti-3Al-2.5V using the wire-electro discharge machining.

This paper aims to present a theoretical model for restructuring Colombia’s educational initiatives in response to current socioeconomic needs. More equitable and decolonized education could help learners decouple their capacities to imagine the future from colonialized paradigms, thereby opening spaces for more active engagement in their own futures.

The authors take a critical, postmodern approach focused on empowering people to transcend constraints from a colonial past and recognizing that the purpose of knowledge, although reflecting power and social relationships, is to help people improve society. Notions of situated and futures literacies nourish an approach toward a decolonized and glocalized educational model.

The current Colombian educational system tends to favor a single focus – local, national or international – at the expense of the others. The authors argue that educational policy and planning should account for three realms of knowledge: locally situated literacies, nationally situated literacies and globally situated literacies.

Deconstructing obsolete and colonized methodologies could not only help prepare Colombian learners for active engagement both within and beyond their modern-day borders but could also help transform other educational systems originally designed to support societies and economies that no longer exist, including those of the Global North.

This paper is intended as an original contribution to researching ESG from a PR perspective, as well as offering a case study of the use of letters as a mode of corporate communication.

The methodology is interdisciplinary but is centred on a critical discourse analysis of the organizational rhetoric on ESG in the annual letters of BlackRock CEO Larry Fink from 2018 to 2023. The article also considers the content of the BlackRock letters alongside the campaign rhetoric deployed by opponents to ESG over the same period.

The analysis of the letters showed up a difference in tempo and tone between the courteous, collaborative and somewhat “corporate” style of text in the Fink letters and the more urgent and confrontational tone of opponents that adopted a populist line of argumentation against ESG in general and Larry Fink and BlackRock in particular.

While advantages can accrue to CEOs and corporations for speaking out on issues, there are also perils awaiting in the contemporary environment for opinion. The findings suggest it is also important to gauge the intensity of cultural and political division in society when speaking out on contentious issues and make a judgement on whether to proceed based on that analysis. Moreover, in countries where the middle ground of public opinion has eroded, ideology and cultural affiliations can prevail instead of openness to argument and counter-argument on topics such as climate change.

The paper presents a fresh case study of a CEO who has been prominent in shaping the discourse on ESG, which has itself become is a matter of contemporary relevance to public relations. The findings offer original insights that are additive to existing guidance and criteria for CEOs deciding to speak out on issues on behalf of their organizations.

This study aims to investigate the behavior of the green biomass-derived copper (lignin/silica/fatty acids) complex, copper lignin/silica/fatty acids (Cu-LSF) complex, when incorporated into the nonpolar ethylene propylene diene (EPDFM) rubber matrix, focusing on its reinforcing and antioxidant effect on the resulting EPDM composites.

The structure of the prepared EPDM composites was confirmed by Fourier-transform infrared spectroscopy, and the dispersion of the additive fillers and antioxidants in the EPDM matrix was investigated using scanning electron microscopy. Also, the rheometric characteristics, mechanical properties, swelling behavior and thermal gravimetric analysis of all the prepared EPDM composites were explored as well.

Results revealed that the Cu-LSF complex dispersed well in the nonpolar EPDM rubber matrix, in thepresence of coupling system, with enhanced Cu-LSF-rubber interactions and increased cross-linking density, which reflected on the improved rheological and mechanical properties of the resulting EPDM composites. From the various investigations performed in the current study, the authors can suggest 7–11 phr is the optimal effective concentration of Cu-LSF complex loading. Interestingly, EPDM composites containing Cu-LSF complex showed better antiaging performance, thermal stability and fluid resistance, when compared with those containing the commercial antioxidants (2,2,4-trimethyl-1,2-dihydroquinoline and N-isopropyl-N’-phenyl-p-phenylenediamine). These findings are in good agreement with our previous study on polar nitrile butadiene rubber.

The current study suggests the green biomass-derived Cu-LSF complex to be a promising low-cost and environmentally safe alternative filler and antioxidant to the hazardous commercial ones.

In this article, the authors – a social studies methods professor and geography research associate – make the case for considering the integration of Holocaust geographies into the middle and secondary curriculum, potential challenges that teachers may have in teaching Holocaust geographies are addressed.

Using an experience in delivering professional development on Holocaust geographies to teachers to frame the discourse within the article, the authors contend that a study of Holocaust geographies tests geography as a discipline, addresses current problems and supports student inquiry. Therefore, the inclusion of the Holocaust in the geography curriculum is both needed and valuable.

Examining the Holocaust spatially using geographical skills moves students away from the potential limits of studying the Holocaust temporally using only historical skills. Thus, the distance between past and present, although not ignored, is narrowed through the inquiry into spatial patterns and characteristics, providing the potential to bring greater focus on present-day antisemitism, persecution, genocide and authoritarianism.

Educators are encouraged to take up work that intersects the civic goals of both geography and Holocaust education, yet literature on these intersections is sparse. We call upon Holocaust education and geography education organizations to develop and provide support for teachers around Holocaust geographies.

Extant research indicates that fear of missing out (FoMO) caused by the negative influence of media and word-of-mouth (WOM) leads to panic buying and generates a negative impact on consumer well-being. However, the mechanism that can minimise or abort this impact remains understudied. Therefore, in this study, we examine how consumer self-regulation functions as a brake mechanism to intervene with the negative influences of media and WOM on FoMO.

Data were collected from a representative sample in Australia. Hypotheses were tested by applying generalised structural equation modelling (GSEM), and analysis was conducted using the statistical software Stata 17.

Self-regulation is negatively influenced by media channels and WOM but is positively influenced by media content. Consumer self-regulation acts as a brake mechanism for FoMO. Panic buying, which is triggered by FoMO, has a significant impact on negative emotional well-being.

The limitations of the study are associated with the survey data collection.

We extend the knowledge of how self-regulation works as a brake mechanism for the complex FoMO construct consisting of a perception of missing out accompanied by irrational behaviours. Self-regulation emerges as a brake mechanism for FoMO. Hence, if self-regulation is practiced at the inception of the media and WOM exposure, it can counteract FoMO and potentially abort its’ impact on panic buying.

From a practical perspective, policymakers could help emotionally vulnerable individuals better engage in self-control practices through support programmes and workshops aimed at assisting the public in coping with overwhelming and intense adverse emotions experienced during and following various crises. Vulnerable cohorts, particularly the younger generation who are arguably more susceptible to FoMO, need to be studied more thoroughly in the marketing domain.

The role of self-regulation has been studied thinly in marketing literature, particularly in relation to offsetting irrational consumer behaviours. The originality of our study is that it extends and broadens the understanding of the role of self-regulation in the context of pandemics and addresses the inconclusive evidence of the impact of self-regulation on FoMO.

Several conceptual works suggest that more digitalized information systems in management accounting have the potential to make this corporate function more effective. Against this backdrop, this study aims to investigate the impact of information systems quality in management accounting on the effectiveness of management control systems. Additionally, this study examines the moderating effect of process automation.

A cross-sectional survey of 125 German Mittelstand firms and hierarchical regression analyses were used for data collection and analysis.

The findings confirm the assumed positive effect of information systems quality in management accounting on management control effectiveness. They also confirm the assumed moderating effect of process automation. The authors find that the relationship between information systems quality in management accounting and management control effectiveness is more pronounced if the firm features a higher degree of process automation.

Several earlier case studies and a few quantitative studies indicated the potentially positive effect of high-quality information systems in management accounting on management control effectiveness. To the best of the authors‘ knowledge, this study is among the first to deliver quantitative proof of this relationship in the context of German Mittelstand firms. Moreover, the authors add to this literature the moderating effect of process automation in the relationship between information systems quality in management accounting and management control effectiveness.