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Article
Publication date: 6 June 2024

Reannan Boisvert, Meredith McQuerry and Sheryl Schofield

Clothing fit, including garment ease and drape, impacts the volume of air between clothing layers and the body, directly affecting the amount of heat that can be transferred…

Abstract

Purpose

Clothing fit, including garment ease and drape, impacts the volume of air between clothing layers and the body, directly affecting the amount of heat that can be transferred through a multi-layer clothing system. As most acute firefighting fatalities are caused by overexertion and heat strain, the purpose of this research was to determine the impact of ease allowances on air gaps in structural firefighting turnout suits and their subsequent effect on total heat loss (THL) when worn on a three-dimensional form.

Design/methodology/approach

Four turnout suits with chest ease allowances of 6″, 8″, 10″ and 12″ were evaluated using an ANDI dynamic sweating thermal manikin. The average predicted manikin THL of each ensemble was calculated from the thermal and evaporative resistance measurements. A three-dimensional (3D) body scanner was utilized to calculate the distance and volume of clothing air gaps between the base layer and each turnout suit.

Findings

Results demonstrate that reductions in upper body ease measurements trend towards statistically significant increases in THL, to a point, with fit limitations being reached before benefits can be significantly realized. An increase in standard chest ease measurements significantly decreased heat loss, even when forced convection from movement was considered.

Originality/value

This is the first article of its kind to explore the relationship between garment ease and predicted manikin THL, especially for fire service protective clothing. Findings indicate a valid recommendation for turnout gear designers and manufacturers to optimize clothing fit to improve breathability and potentially reduce incidents of heat strain in the fire service.

Details

International Journal of Clothing Science and Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 31 May 2022

Samridhi Garg, Monica Puri Sikka and Vinay Kumar Midha

Perspiration and heat are produced by the body and must be eliminated to maintain a stable body temperature. Sweat, heat and air must pass through the fabric to be comfortable…

Abstract

Purpose

Perspiration and heat are produced by the body and must be eliminated to maintain a stable body temperature. Sweat, heat and air must pass through the fabric to be comfortable. The cloth absorbs sweat and then releases it, allowing the body to chill down. By capillary action, moisture is driven away from fabric pores or sucked out of yarns. Convectional air movement improves sweat drainage, which may aid in body temperature reduction. Clothing reduces the skin's ability to transport heat and moisture to the outside. Excessive moisture makes clothing stick to the skin, whereas excessive heat induces heat stress, making the user uncomfortable. Wet heat loss is significantly more difficult to understand than dry heat loss. The purpose of this study is to provided a good compilation of complete information on wet thermal comfort of textile and technological elements to be consider while constructing protective apparel.

Design/methodology/approach

This paper aims to critically review studies on the thermal comfort of textiles in wet conditions and assess the results to guide future research.

Findings

Several recent studies focused on wet textiles' impact on comfort. Moisture reduces the fabric's thermal insulation value while also altering its moisture characteristics. Moisture and heat conductivity were linked. Sweat and other factors impact fabric comfort. So, while evaluating a fabric's comfort, consider both external and inside moisture.

Originality/value

The systematic literature review in this research focuses on wet thermal comfort and technological elements to consider while constructing protective apparel.

Details

Research Journal of Textile and Apparel, vol. 28 no. 2
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 4 June 2024

Jorge León, María Ignacia Rojas, Soraya Gutiérrez and Randy Román

To critically assess the reconstruction process's outcomes four months after a wildfire disaster in Viña del Mar, Chile, comparing the governmental reconstruction plan and the…

Abstract

Purpose

To critically assess the reconstruction process's outcomes four months after a wildfire disaster in Viña del Mar, Chile, comparing the governmental reconstruction plan and the actual rebuilding efforts by the dwellers.

Design/methodology/approach

A geographic information system (GIS)-based analysis to deliver a spatial-based comparison of (1) the cadastre of damaged dwellings; (2) the Ministry of Housing and Urbanism’s (MINVU) reconstruction plan and (3) the actual reconstruction that has been carried out by the dwellers themselves up to November 2023 (as surveyed through fieldwork and drone flights).

Findings

Around 307 dwellings (97.7% of the 314 examined households) had been rebuilt by November 2023, all through the dwellers’ self-reconstruction efforts, except for two houses delivered by MINVU. Around 105 of these dwellings (34.2%) were granted a reconstruction subsidy by MINVU, while 155 (49.4% of the sample of 314 dwellings) were rebuilt without this aid. Also, 47 houses were rebuilt by dwellers in areas deemed “non-rebuildable” due to their high-risk levels.

Originality/value

We use a mixed-methods approach to examine disruptions between planned reconstruction and actual rebuilding processes following a wildfire disaster in areas with significant informality.

Details

Disaster Prevention and Management: An International Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 22 March 2024

Katja Eman, Damir Ivančić and Dejan Bagari

The purpose of the paper is to present the results of research in the region covered by the Murska Sobota Police Directorate based on semi-structured interviews we conducted with…

Abstract

Purpose

The purpose of the paper is to present the results of research in the region covered by the Murska Sobota Police Directorate based on semi-structured interviews we conducted with community policing officers in the rural and urban areas of Pomurje.

Design/methodology/approach

Community policing is one of the more recent (yet hardly new) ways of ensuring security. It focuses on collaboration between citizens and the police, the joint identification of security issues and resolving them. Not long ago, it was established that policing varies depending on geographical criteria, specifically the urbanisation of the environment since police work in cities is often very narrowly specialised compared to in a rural environment. We were therefore interested in whether the Pomurje region also shows that it is easier to practise community policing in rural areas compared to cities.

Findings

The research results confirm previous findings; namely, that in urban areas approximately two-thirds of the population does not know the community policing officer, leading to the mutual cooperation between residents and the police being poorer than in rural areas. The conclusion describes ways of improving the established situation facing Pomurje.

Research limitations/implications

We see the limitations of the study in the peculiarities of the Pomurje region; therefore the results cannot be generalised and applied in areas of other police directorates.

Originality/value

The survey offers insight into rural and urban policing in the Pomurje region at the same time, focusing on possibilities for improvements.

Details

Policing: An International Journal, vol. 47 no. 3
Type: Research Article
ISSN: 1363-951X

Keywords

Book part
Publication date: 4 June 2024

Laura Manison and Catherine Rosenberg

This chapter explores the theme of symbolic violence (Bourdieu, 2001; Thapar-Björkert et al., 2016), a central theme in my doctoral thesis.My thesis looked at the experiences of a…

Abstract

This chapter explores the theme of symbolic violence (Bourdieu, 2001; Thapar-Björkert et al., 2016), a central theme in my doctoral thesis.

My thesis looked at the experiences of a group of female undergraduate students in their first year of Initial Teacher Education in Primary Education at the university where I teach. I explored the perceived choices my participants made in terms of choosing to become primary school teachers, arguing that symbolic violence is a controlling force in society so powerful and insidious that ‘individuals do not question their own role in the production and reproduction of domination and subordination’ (Thapar-Björkert et al., 2016, p. 9). Through class and gender, primary school teaching has insidiously presented itself to be a suitable profession for young women.

I position myself as a woman from working-class origins who made the choice to become a primary school teacher and who has recognised the impact of symbolic violence. As a result, some of this chapter is written from an autoethnographic perspective. My overarching methodological approach is narrative inquiry and I have used poetry to present my data throughout. My co-author, Catherine, was one of my doctoral supervisors and we were drawn together by our shared investment in narrative and the impact of early experiences on our subsequent selves. For this chapter, we present our own narrative poems describing the impact of symbolic violence on our own lives alongside that of the participants.

Details

Critical Perspectives on Educational Policies and Professional Identities
Type: Book
ISBN: 978-1-83753-332-9

Keywords

Article
Publication date: 19 December 2023

Sandra Vaiciulyte, Helen Underhill and Elizabeth Reddy

Fires have the potential to destroy, resulting in the loss of property and livelihoods, as well as injury, death and repeated trauma for those who are already vulnerable. However…

Abstract

Purpose

Fires have the potential to destroy, resulting in the loss of property and livelihoods, as well as injury, death and repeated trauma for those who are already vulnerable. However, fire as a hazard has been treated rigidly and un-critically, a model that has influenced how it is perceived by policy makers, first responders, engineers and academics and subsequently approaches to implementing and better understanding fire prevention, mitigation, response and recovery from the impacts of fire.

Design/methodology/approach

This article deals with fire, arguing that its case can help imagine what liberation might mean within and for disaster studies. The study argues against dogmatic, outdated, technological and solution-focused perspectives that have constrained how fire and its effects are understood and discuss what disciplinary liberation could mean for the study of fire and its integration within DRR. The study’s approach is based on the DRR Assemblage Theory, which points to fire as an issue at a societal level.

Findings

The study explores the themes of fire and liberation through contributions and insights that have emerged through the authors' professional experience in research and practice. It offers an original and timely engagement with disaster studies through the lens of fire, an increasingly pertinent phenomenon for disaster scholars and practitioners alike.

Originality/value

By drawing on the example of fire as a socio-technical-environmental phenomenon, this paper contributes a novel perspective on the intellectual and practical possibilities that can emerge from disciplinary liberation.

Details

Disaster Prevention and Management: An International Journal, vol. 33 no. 3
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 7 September 2023

Jakub Šejna, Stanislav Šulc, Vít Šmilauer, Pavel Reiterman and František Wald

The aim of this paper is to determine the thermal conductivity of a protective layer of alkali-activated cement and the possibility of performing fire protection with fireclay…

Abstract

Purpose

The aim of this paper is to determine the thermal conductivity of a protective layer of alkali-activated cement and the possibility of performing fire protection with fireclay sand and Lightweight mortar. Unprotected steel structures have generally low fire resistance and require surface protection. The design of passive protection of a steel element must consider the service life of the structure and the possible need to replace the fire protection layer. Currently, conventional passive protection options include intumescent coatings, which are subject to frequent inspection and renewal, gypsum and cement-based fire coatings and gypsum and cement board fire protection.

Design/methodology/approach

Alkali-activated cements provide an alternative to traditional Portland clinker-based materials for specific areas. This paper presents the properties of hybrid cement, its manufacturability for conventional mortars and the development of passive fire protection. Fire experiments were conducted with mortar with alkali-activated and fireclay sand and lightweight mortar with alkali-activated cement and expanded perlite. Fire experiment FE modelling.

Findings

The temperatures of the protected steel and the formation of cracks in the protective layer were investigated. Based on the experiments, the thermal conductivities of the two protective layers were determined. Conclusions are presented on the applicability of alkaline-activated cement mortars and the possibilities of applicability for the protection of steel structures. The functionality of the passive fire layer was confirmed and the strengths of the mortar used were determined. The use of alkali-activated cements was shown to be a suitable option for sustainable passive fire protection of steel structures.

Originality/value

Eco-friendly fire protection based on hybrid alkali-activated cement of steel members.

Details

Journal of Structural Fire Engineering, vol. 15 no. 2
Type: Research Article
ISSN: 2040-2317

Keywords

Article
Publication date: 27 November 2023

Balakrishna Ballekura and Lavanya Vilvanathan

Despite the prevalence of uncivil behaviors across families and past studies attributing work stressors to suicidal ideation (SI), there is no conclusive evidence of the…

Abstract

Purpose

Despite the prevalence of uncivil behaviors across families and past studies attributing work stressors to suicidal ideation (SI), there is no conclusive evidence of the interactive effect of family incivility (FI) aggravating SI. Hence, the purpose of this study is to explore the association between FI and SI through emotional exhaustion (EE) in the workplace and regulation of emotion.

Design/methodology/approach

A time lag (T1 and T2) study is applied for primary data collection using a survey questionnaire. The partial least squares–structural equational modeling algorithm tests reliability, validity and hypotheses.

Findings

Experiencing FI exacerbates SI, while the regulation of emotion and EE mediate the association between FI and SI.

Practical implications

Professionals are advised to adopt regulation of emotion that fosters desirable behavior and shields targets from FI and EE, minimizing the intensity of SI.

Originality/value

This study significantly adds to how FI and EE aggravate SI and contribute to the body of knowledge on the regulation of emotion in stress and coping mechanisms.

Details

International Journal of Conflict Management, vol. 35 no. 3
Type: Research Article
ISSN: 1044-4068

Keywords

Article
Publication date: 28 November 2023

Wanqi Li and Huaxin Peng

Cyberbullying is a globally pervasive problem and not novel in academia. Previous studies mainly focussed on the features, consequences and technological management of…

Abstract

Purpose

Cyberbullying is a globally pervasive problem and not novel in academia. Previous studies mainly focussed on the features, consequences and technological management of cyberbullying. However, most of the studies took cyberbullying examples in the West, and some issues still need to be addressed in the Chinese context. Thus, this study investigates how participants use cyberbullying words and why they use them in that particular way in China.

Design/methodology/approach

This study uses content analysis to summarise the typical features of cyberbullying words, revealing a positive relationship between cyberbullying words and sentimental expressions. This paper also uses the questionnaire (N = 705) to explore the prevalence of cyberbullying among Chinese Internet users and to compare the gender differences in the cognition of cyberbullying words and involvement in cyberbullying, in line with the social cognitive theory.

Findings

This study stated that people prefer repetitively using offensive words to achieve cyberbullying goals. Interestingly, this study does not find obvious gender differences in cyberbullying roles and cyberbullying language use. However, it explained the relationship between cognition and the use of cyberbullying words from a gender perspective.

Practical implications

Theoretically, this study expands cyberbullying studies into a new cultural environment, pointing to a novel term, “imbalanced relation,” for exploring cyberbullying behaviours. This study highlights the significance of technology and education in detecting and preventing cyberbullying, suggesting that educators and social media platforms can directly predict and prevent cyberbullying through textual perspectives and individuals' cognition of cyberbullying.

Originality/value

This study aims to examine cyberbullying linguistic and emotional features and individual differences in cyberbullying behaviour in a high-context culture like China. Its values include comparing the differences between cyberbullying in China and cyberbullying in the West from the linguistic and cultural directions and reconsidering the “power imbalance” feature of cyberbullying.

Details

Online Information Review, vol. 48 no. 3
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 4 June 2024

Yun Su, Hui Wang, Guangju Liu, Yunyi Wang, Jianlin Liu and Miao Tian

The paper aims to reveal the relationship among energy efficiency, thermal comfort and thermal regulation of electrically heated footwear and to investigate influencing factors on…

Abstract

Purpose

The paper aims to reveal the relationship among energy efficiency, thermal comfort and thermal regulation of electrically heated footwear and to investigate influencing factors on the energy efficiency and thermal comfort.

Design/methodology/approach

A finite volume model was proposed to simulate the two-dimensional heat transfer in electrically heated footwear (EHF) under an extremely cold condition. The model domain consists of three-layer footwear materials, a heating pad, a sock material, an air gap and skin tissues. Model predictions were verified by experimental data from cold-contact exposure. Then the influencing factors on the energy efficiency and thermal comfort were investigated through parametric analysis.

Findings

The paper demonstrated that the skin temperature control (STC) mode provided superior thermal comfort compared to the heating pad temperature control (HPTC) mode. However, the energy efficiency for the HPTC mode with a heating temperature of 38 °C was 18% higher than the STC mode. The energy efficiency of EHF while reaching the state of thermal comfort was strongly determined by the arrangement and connection of heating elements, heating temperature, thickness and thermal conductivity of footwear materials.

Originality/value

The findings obtained in this paper can be used to engineer the EHF that provides optimal thermal comfort and energy efficiency in cold environments.

Details

International Journal of Clothing Science and Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0955-6222

Keywords

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