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The purpose of this paper is to investigate the degree of improvement in mechanical properties of aluminum alloy (AA6063) after processing with equal channel angular extrusion (ECAE) using four environmentally benign lubricants.

Aluminum (Al) 6063 bar was annealed at 350°C for 1 hour, machined and cut to billets measuring 14 × 14 × 44 mm3. These specimens for extrusions were machined to the specified dimension to a visibly good finish. The billets were extruded through ECAE die of 14 × 14 mm2 channel cross-section area; the channel angle was 120°; and the angle of the outer arc of the channels was 30°. The punch and container used for the experiment were made of tool steel alloy AISI D2, and were chromium-coated and polished. Four lubricants such as palm, olive, coconut and groundnut oils were used in this study.

The yield, ultimate tensile strengths (UTS) and the ductility of the material ECAEed with palm oil as lubricant, which gave the least extrusion pressure, produces the maximum yield, UTS and ductility, followed by groundnut oil and coconut oil, while olive oil gave the least yield strength, (UTS) and ductility. However, palm oil and olive oil have better load reduction than other lubricants. Furthermore, from the hardness results, though scattered, all of the points at the tensile strained side of the extrudate lie within a reasonably narrow band, suggesting a high degree of homogeneity and greater hardness value within the rod than the compressive side after being ECAEed.

It is shown in the paper that all the lubricants tested greatly enhanced mechanical properties of Al 6063 and can effectively replace the petroleum-based lubricants used in forging operations.

Students with developmental/intellectual disabilities (ID/DD) often have serious health issues that require additional medical care and supervision. Serious health issues also mean increased absence and additional lags in academic achievement and development of adaptive and social skills. The incorporation of artificial intelligence in the education of a child with ID/DD could ameliorate the educational, adaptive and social skill gaps that occur as a direct result of persistent health problems.

The literature regarding the use of artificial intelligence in education for students with ID/DD was collected systematically from international online databases based on specific inclusion and exclusion criteria. The collected articles were analyzed deductively, looking for the different gaps in the domain. Based on the literature, an artificial intelligence–based architecture is proposed and sketched.

The findings show that there are many gaps in supporting students with ID/DD through the utilization of artificial intelligence. Given that the majority of students with ID/DD often have serious and chronic and comorbid health conditions, the potential use of health information in artificial intelligence is even more critical. Therefore, there is a clear need to develop a system that facilitates communication and access to health information for students with ID/DD, one that provides information to caregivers and education providers, limits errors, and, therefore, improves these individuals' education and quality of life.

This review highlights the gap in the current literature regarding using artificial intelligence in supporting the education of students with ID/DD. There is an urgent need for an intelligent system in collaboration with the updated health information to improve the quality of services submitted for people with intellectual disabilities and as a result improving their quality of life.

This study contributes to the literature by highlighting the gaps in incorporating artificial intelligence and its service to individuals with ID/DD. The research additionally proposes a solution based on the confounding variables of students’ health and individual characteristics. This solution will provide an automated information flow as a functional diagnostic and intervention tool for teachers, caregivers and parents. It could potentially improve the educational and practical outcomes for individuals with ID/DD and, ultimately, their quality of life.

The authors' purpose is to illuminate ways in which care within the mentor–mentee relationship influences the efficacy of mentoring for/in the professoriate, within and beyond the novel circumstances of the COVID-19 pandemic.

A narrative inquiry design drew on the authors' distinct positionalities and experiences of mentoring and being mentored by one another to provide a multi-layered analysis of mentor–mentee relationships. Utilizing care theory, we paid particular attention in our narratives and analysis to the affective dimensions of mentoring within the distinct context created by the COVID-19 pandemic.

Our data analysis revealed three themes: (1) mentor humility was relevant to mentees' success, (2) relationship longevity mattered, and (3) caring mentoring relationships were affectively and empirically generative.

Narrative inquiry, generally, is limited in its generalizability but can be a powerful tool to facilitate knowledge sharing. Our analysis suggests areas which merit further research and may have broader implications. Namely, during trying times the normalization of professor humility may enhance the quality and generativity of the mentoring relationships, especially when combined with networking support.

We make seven recommendations to enhance the efficacy of professors as mentors and mentees in need of mentorship.

Mentors who practice care-for their mentees, as opposed to care-about, enhance the efficacy of the mentoring relationship.

In this study, the authors investigate how institutions influence the adoption and implementation of a quality management practice (QMP) that was originally developed for Western developed countries but is being used in sub-Saharan African firms. The authors’ aim is to contribute to the literature on how local and broader institutions in sub-Saharan African firms impact the adoption of QMP (specifically ISO 9001:2015) and how the firm's situated rationalities shape the associated change in management accounting practices.

The authors applied the extended Burns and Scapens framework and employed a case study research approach. The authors collected empirical data through semi-structured interviews and secondary sources and used direct content analysis to analyse the data.

The authors’ findings suggest that although personal values and commitments to modernising the business are the main drivers of change, the continued dominance of traditional accounting logic restricts the necessary change in management accounting to support effective QMP implementation.

This study emphasises the importance of aligning institutional logics to fully realise the benefits of new strategies and identifies technical competencies, access to information and communication technology, and clarity about the role of management accounting in modernising management practices as critical success factors.

This study is original in that it provides insights into the impact of contextual factors in less developed countries on institutionalising QMP and management accounting change, demonstrating the importance of aligning management accounting change with proposed organisational strategies to fully realise their benefits.

This study is aimed at examining the effect of Total Quality Management (TQM) practices on the operational performance of ISO 9001:2008 certified manufacturing companies in Ethiopia.

A cross-sectional survey was conducted to meet the purpose. Primary data was collected from the managers and senior experts working under the production and quality management units of the surveyed firms. Data was obtained from a survey of 302 participants found in 73 ISO 9001:2008 certified manufacturing organizations. Both EFA and CFA were applied to validate and confirm the instrument, and Structural Equation Modeling (SEM) was used to test the hypotheses.

The results revealed that among the practices of TQM used in the model only supplier quality management, continuous improvement and process management were found to have significant and positive effect on the operational performance of the ISO 9001:2008 certified manufacturing organizations in Ethiopia.

Future studies are suggested to consider some contextual variables such as firm age, scope of operation, firm size and firm strategy while addressing the objective.

The study will encourage managers of manufacturing companies in Ethiopia to utilize a reliable and valid framework of TQM practices for better operational performance results.

The fact that Ethiopian manufacturing organizations are required to improve their product's quality in order to improve their productivity and enhance their competitiveness in a global market is the rationale of this study. Even though several studies have evolved to scrutinize the link between TQM and operational performance across the world, nearly nothing, is known about this linkage in Ethiopia. Thus, the study represents one of the first attempts to empirically investigate this linkage in Ethiopian context.

The purpose of this research is to explore the effect of internship experience on final-year pre-service teachers (PSTs) studying for a Bachelor of Education in Abu Dhabi. The UAE is undergoing a period of rapid education reform with a strong emphasis on use of student-centered learning strategies in the classroom. Teacher-training colleges, such as the one in which this research took place, have had to customize their programs to prepare and train teachers who can effectively implement this new approach.

Semi-structured interviews were conducted with ten PSTs to explore the usefulness of the college science courses during their internship experience, and the challenges they faced during their internship. We also looked at how these experiences have influenced their confidence levels and the type of science teachers they want to be in the future.

Results have shown that PSTs have variable opinions on the usefulness of the college courses. A perceived lack of emphasis placed by mentor teachers upon science may have long-term effects on the PSTs’ eventual use of teaching strategies. It was also shown that some of the PSTs still lacked confidence in science teaching.

This research may provide national guidelines for teacher-training colleges in the UAE or in countries undergoing educational reform and moving towards student-centered approaches to learning.

Research studies on the effect of internship on PSTs have been conducted in different countries but such studies have great novelty in the UAE.

To provide a selective bibliography for researchers working with bulk material forming (specifically the forging, rolling, extrusion and drawing processes) with sources which can help them to be up‐to‐date.

A range of published (1996‐2005) works, which aims to provide theoretical as well as practical information on the material processing namely bulk material forming. Bulk deformation processes used in practice change the shape of the workpiece by plastic deformations under forces applied by tools and dies.

Provides information about each source, indicating what can be found there. Listed references contain journal papers, conference proceedings and theses/dissertations on the subject.

It is an exhaustive list of papers (1,693 references are listed) but some papers may be omitted. The emphasis is to present papers written in English language. Sheet material forming processes are not included.

A very useful source of information for theoretical and practical researchers in computational material forming as well as in academia or for those who have recently obtained a position in this field.

There are not many bibliographies published in this field of engineering. This paper offers help to experts and individuals interested in computational analyses and simulations of material forming processes.