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This paper aims to design and test a system capable of coaxial fused deposition modelling (FDM) and assess the coaxial fibres produced for their coaxial concentricity. The goal is to achieve concentricity values below the literature standard of 15 per cent.

This research discusses the design of the coaxial nozzle internal geometry and validates the modelling process by using computational fluid dynamics to assess its flow profile. Sequentially, this paper discusses the abilities of current additive manufacturing (AM) technology in the production of the coaxial nozzle.

The methodology followed has produced coaxial fibres with concentricity values as low as 2.89 per cent and also identifies a clear speed suitable for coaxial printing using polylactic acid (PLA) as the internal and external materials.

The concentricity of the printed fibres is heavily influenced by the feed rate for the thermoplastic feedstock. This in turn alters the viscosity of the material to be printed, implying that a relationship exists between feed rate and print temperature, which can be further optimised to potentially obtain higher concentricity values.

This paper adds reliability and repeatability to the production of coaxially printed structures, the likes of which has numerous potential applications for biological printing.

The outcomes of this study will provide an AM platform to alter the paradigm of biofabrication by introducing a new level of versatility to the construction of biofabricated structures.

The paper explores the historical evolution of employee voice in Namibia from an employment relations (ER) perspective and in the context of institutional factors such as labour legislation, trade union strategies, company policies and governmental regulations. The first part of the paper provides a brief outline of ER conceptions of voice that are manifest in the recent resurgence of interest in the topic. The next part traces the historical evolution of labour regulation and employee voice in Namibia. It is shown that, in the absence of collective voice and statutory protections, informal voice and occupational solidarity were the primary means of defence available to black workers against oppressive conditions. In the final part, an outline of some key features of employee voice in contemporary Namibia is provided. The analysis shows that systems of employee voice are fundamentally a manifestation of the balance of powers at a particular time and place. It is therefore crucial to link voice preferences and behaviours in the workplace to specific preconditions and to highlight the limiting factors that serve to constrain choice.

Means, medians and SD for available socio‐economic status (SES) black‐white differences are here substituted for those of IQ in a between‐groups model published by the author over a decade ago. The goodness of fit of the SES variables used is compared with that for the earlier IQ data. Even when SES variables are relatively successful this can be viewed as additional evidence of the importance of IQ differences to black‐white differences in delinquency.

Performance measures have long been a topic of interest in higher education although no consensus on the best way to measure performance has been achieved. This paper examines the extent and effectiveness of service efforts and accomplishment reporting by public and not-for-profit U.S. colleges and universities using survey data provided by the National Association of College and University Business Officers. Effectiveness is evaluated using the Government Accounting Standards Board (GASB) suggested criteria. Regression analysis suggests an association between the extent of disclosure and size, leverage, level of education provided, and regional accreditation agency. Private institutions rate themselves as more effective communicators. Effectiveness of communication is also associated with the extent of disclosure, level of education provided and accreditation region.

Interest in employee mindfulness has increased dramatically in recent years, fueled by several important conceptual articles, numerous studies documenting the benefits of mindfulness for employee outcomes, and the adoption of mindfulness-based practices in many Fortune 500 organizations. Despite this growing interest, the vast majority of research on employee mindfulness has taken an intrapersonal focus, failing to appreciate the ways in which mindfulness may enhance work-related relational processes and outcomes. The authors explore possible associations between mindfulness and relationally oriented workplace phenomena, drawing from interdisciplinary scholarship examining mindfulness in romantic relationships, child–parent relationships, patient–healthcare provider relationships, and student–teacher relationships. A framework is proposed that links mindfulness to three distinct relationally oriented processes, which are expected to have downstream effects on work-related relational outcomes. The authors then take the proposed framework and discuss possible extensions to a variety of unique workplace relationships and discuss critical next steps in advancing the relational science of mindfulness.

Purpose – David Gordon (1996) contended that the size of the managerial/administrative class has expanded in recent decades and that this has contributed to growing earnings inequality. This argument, however, has received insufficient attention despite its potential to explain some of the growth of earnings inequality in recent decades. We assess whether managerial intensity contributes to earnings inequality in affluent democracies, and thus evaluate his argument and extend it with a comparative perspective.

Methodology/approach – Our analyses are based on panel analyses of 17 affluent democracies from 1973 to 2004. Utilizing random- and fixed-effects models, we include three different measures of earnings inequality and an original measure of managerial intensity.

Findings: We show that managerial intensity is positively associated with all three measures of earnings inequality in random-effects models. As well, managerial intensity is positively associated with earnings inequality in the fixed-effects models for the 90/50 ratio of earnings inequality, but is not significant for the other two measures.

Originality/value – This study provides one of the few tests of Gordon's argument. We demonstrate that growing managerial intensity has contributed to rising earnings inequality in affluent democracies. In contrast to previous research, we argue that much of the rise of earnings inequality is due to political/institutional factors rather than labor market and demographic change. One of the reasons for Europe's relatively lower level of and slower increase in earnings inequality is its lower managerial intensity.

Using a sample of 214 US metropolitan areas, we examine the connection between the Great Recession and bad jobs, taking into consideration the macro-level determinants of the troubled economy. Our measure of bad jobs is derived from Kalleberg, Reskin, and Hudson’s (2000) conceptualization as those that have low pay, lack health insurance, and lack pension plans. We find that the Great Recession increased the prevalence of bad jobs, consistently for men and selectively for women. Among the macro-level processes, the decline of the manufacturing base, union membership, and public sector employment are sources of increasing bad jobs, especially for men. Those macro-level processes which are growing in influence such as casualization, globalization and financialization show no signs of reversing the negative trends in bad jobs. Human capital variables in the labor market such as educational and age variability consistently suggest more adverse effects on bad jobs for men than women. Our findings contribute to the further understanding of the nature of precarious work in a troubled economy.

Technical education in the twentieth century played an important role in the cultural life of Australia in ways are that routinely overlooked or forgotten. As all education is central to the cultural life of any nation this article traces the relationship between technical education and the national social imaginary. Specifically, the article focuses on the connection between art and technical education and does so by considering changing cultural representations of Australia.

Drawing upon materials, that include school archives, an unpublished autobiography monograph, art catalogues and documentary film, the article details the lives and works of two artists, from different eras of twentieth century Australia. Utilising social memory as theorised by Connerton (1989, 2009, 2011), the article reflects on the lives of two Australian artists as examples of, and a way into appreciating, the enduring relationship between technical education and art.

The two artists, William Wallace Anderson and Carol Jerrems both products of, and teachers in, technical schools produced their own art that offered different insights into changes in Australia's national imaginary. By exploring their lives and work, the connections between technical education and art represent a social memory made material in the works of the artists and their representations of Australia's changing national imaginary.

This article features two artist teachers from technical schools as examples of the centrality of art to technical education. Through the teacher-artists lives and works the article highlights a shift in the Australian cultural imaginary at the same time as remembering the centrality of art to technical education. Through the twentieth century the relationship between art and technical education persisted, revealing the sensibilities of the times.

Given the well-reported concerns over cost containment in public higher education, we believe performance should be measured based on cost efficiency and spending choices. This study develops three regression models linking presidential pay and public university performance with data for public universities that have no president change for fiscal year 2007 to fiscal year 2010. Analysis finds a statistically significant inverse relationship between presidential pay and resources devoted to instruction, the primary mission of most universities. A relationship for presidential compensation and enrollment is found for the individual fiscal years examined but not over time. Presidential compensation over time is positively related to spending on areas other than instruction.