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Looking through an autoethnographical lens, the authors analyse the reclaiming of the heritage name of Indonesian Peranakan Chinese in the Netherlands with regard to their sense of belonging and (translocational) positionality. The discussion is situated in the realm of (post)colonial ties between the country of birth and their current country of residence, against the backdrop of assimilationist policies of President Soeharto’s “New Order” after the regime change following the September 30, 1965, coup attempt (G30S). The authors’ own reflections were studied in combination with interviews, both formal and informal, and desk research to compose a narrative of active memories and stories told. How was the state-imposed name change experienced? Why did they choose to reclaim their Chinese name when applying for Dutch citizenship rendered that opportunity? Where can the affective bonds be found?

The authors’ own reflections were studied in combination with interviews, both formal and informal, and desk research to compose a narrative of active memories and stories told. How was the state-imposed name change experienced? Why did they choose to reclaim their Chinese name when applying for Dutch citizenship rendered that opportunity? Where do the affective bonds lie?

The reclaiming of the heritage name has a different resonance in the sense of belonging for different generational cohorts. In the specific post-colonial Dutch context - for the generation of our interviewees and of our parents - it represents an active re-positioning of one’s self as having Chinese ancestry (the name I was born with), not because they wanted to renounce their Indonesian connection but because they were forced to make a choice. For us, the authors, it was more a matter of: because we were raised with this name.

This article is a response to the appeal to expand the scarce literature published on the Peranakan Chinese group in the Netherlands (e.g. Tjiook–Liem, 2017; Van der Meer and Eickhoff, 2017; Ang, 2005; Li, 1999) who live in a fascinating (post)colonial positionality comprising of Chinese ancestry, Indonesian background and the Dutch (new) home country. Studies on this group barely mention the consequences of name change for their belonging (Healy, 2020) and positionality (Anthias, 2012).

Maintaining good indoor air quality (IAQ) in the built environment is essential to assure health, safety and productivity of occupants. The purpose of this paper is to report on the preliminary IAQ assessment of selected air-conditioned laboratories and naturally ventilated workshops in a tropical education institution.

The concentration levels of five major indoor air pollutants (IAPs) – carbon dioxide, carbon monoxide, respirable particulates, formaldehyde (HCHO) and total volatile organic compounds (TVOC) in each sampling area were measured using calibrated air sampling sensors and the tracer-gas analysis was used to determine the ventilation effectiveness. A questionnaire survey was carried out concurrently to study the prevalence of sick building syndrome (SBS) among users of laboratories and workshops and the data collected were statistically analysed using χ² test.

The air pollutant levels were found to be below the threshold limit values set in the local code of practice on IAQ, except for two of the air-conditioned laboratories. This is possibly due to insufficient ventilation, smaller floor area per occupant ratio, long-term exposure to chemical substances, and improper disposal of the used chemical substances. The total particulate levels were higher in naturally ventilated workshops because such spaces were assigned for mechanical works which involved grinding, welding and fabrication. Besides, it was identified that most of the air contaminant levels were not normally distributed (p<0.05) within the sampling areas and SBS like dry eyes, watery eyes, tiredness and dry throat were reported in both laboratories and workshops. The outcomes of this work suggest that an increase of ventilation rate was necessary to reduce the concentration of the IAPs in air-conditioned laboratories and improved housekeeping would help mitigate the prevalence of SBS symptoms.

This research was carried out in selected laboratories and workshops in a Malaysian educational institution and only five major IAPs stipulated in the Department of Occupational Safety and Health (DOSH) code of practice were measured.

The results of this study will enable facility engineers and managers to understand the IAPs concentration levels and potential SBS problems in academic laboratories and workshops. The recommended strategies can be considered to improve IAQ conditions in such spaces.

Most of the previously conducted IAQ studies focused only on commonly occupied building spaces such as offices, classrooms and houses. Information of the quality of air and SBS conditions in experimental facilities in developing nations that is available is currently very limited. This case study provides detailed information on IAQ in laboratories and workshops in Malaysia with focuses on the concentration levels of particular harmful gases, the prevalence of SBS among users of these facilities and the appropriate mitigation strategies. The results presented are of value to both academic and industry communities.

Last month we published abstracts and summaries of some of the papers presented at the Congress, which was held at the Imperial College of Science and Technology from April 10–15 under the auspices of the International Union of Pure and Applied Chemistry. In this issue we publish further abstracts and summaries together with illustrations of many of the corrosionists attending and photographs of some of the many visits which were arranged to works and laboratories. The Congress attracted over 800 delegates.

The purpose of this study is to investigate the effectiveness of a composite lubrication system combining polytetrafluoroethylene (PTFE) film and oil lubrication in steel–steel friction pairs.

A PTFE layer was sintered on the surface of a steel disk, and a lubricant with additives was applied to the surface of the steel disk. A friction and wear tester was used to evaluate the tribological properties and insulation capacity. Fourier transform infrared spectrometer was used to analyze the changes in the composition of the lubricant, and X-ray photoelectron spectroscopy was used to analyze the chemical composition of the worn surface.

It was found that incorporating the PTFE film with PSAIL 2280 significantly enhanced both the friction reduction and insulation capabilities at the electrical contact interface during sliding. The system consistently achieved ultra-low friction coefficients (COF < 0.01) under loads of 2–4 N and elucidated the underlying lubrication mechanisms.

This work not only confirm the potential of PTFE films in insulating electrical contact lubrication but also offer a viable approach for maintaining efficient and stable low-friction wear conditions.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-06-2024-0222/