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Book part
Publication date: 20 June 2017

David Shinar

Abstract

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Traffic Safety and Human Behavior
Type: Book
ISBN: 978-1-78635-222-4

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Book part
Publication date: 5 October 2007

David Shinar

Abstract

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Traffic Safety and Human Behavior
Type: Book
ISBN: 978-0-08-045029-2

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Article
Publication date: 10 July 2017

Maxwell Fordjour Antwi-Afari, Heng Li, David John Edwards, Erika Anneli Pärn, JoonOh Seo and Arnold Wong

Repetitive lifting tasks have detrimental effects upon balance control and may contribute toward fall injuries, yet despite this causal linkage, risk factors involved…

Abstract

Purpose

Repetitive lifting tasks have detrimental effects upon balance control and may contribute toward fall injuries, yet despite this causal linkage, risk factors involved remain elusive. The purpose of this paper is to evaluate the effects of different weights and lifting postures on balance control using simulated repetitive lifting tasks.

Design/methodology/approach

In total, 20 healthy male participants underwent balance control assessments before and immediately after a fatiguing repetitive lifting tasks using three different weights in a stoop (ten participants) or a squat (ten participants) lifting posture. Balance control assessments required participants to stand still on a force plate with or without a foam (which simulated an unstable surface) while center of pressure (CoP) displacement parameters on the force plate was measured.

Findings

Results reveal that: increased weight (but not lifting posture) significantly increases CoP parameters; stoop and squat lifting postures performed until subjective fatigue induce a similar increase in CoP parameters; and fatigue adversely effected the participant’s balance control on an unstable surface vis-à-vis a stable surface. Findings suggest that repetitive lifting of heavier weights would significantly jeopardize individuals’ balance control on unstable supporting surfaces, which may heighten the risk of falls.

Originality/value

This research offers an entirely new and novel approach to measuring the impact that different lifting weights and postures may have upon worker stability and consequential fall incidents that may arise.

Details

International Journal of Building Pathology and Adaptation, vol. 35 no. 3
Type: Research Article
ISSN: 2398-4708

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Article
Publication date: 8 December 2020

Noufou Ouedraogo and Mohammed Laid Ouakouak

Organisations implement changes either to address real business imperatives or to follow trends in their industries. But frequent changes in an organisation often lead to…

Abstract

Purpose

Organisations implement changes either to address real business imperatives or to follow trends in their industries. But frequent changes in an organisation often lead to employee change fatigue and change cynicism. The purpose of this study is to investigate the impact of the change logic of appropriateness and the logic of consequences on change fatigue and change cynicism and the impact of change fatigue and change cynicism on change success.

Design/methodology/approach

To carry out this study, the authors collected data on a sample of 320 participants from diverse organisations, and they used structural equation modelling (SEM) techniques to test our hypotheses depicted in the research model.

Findings

The authors found that the change logic of consequences reduces both change fatigue and change cynicism, whereas the change logic of appropriateness increases change fatigue. The authors also found that change fatigue does not have any direct effect on change success, although it maintains an indirect negative effect on change success through change cynicism.

Practical implications

Along with other practical implications, the authors recommend that change managers help employees understand any logic of consequences that sustain their change initiatives. Additionally, change managers should work to prevent change fatigue from turning into change cynicism, which is the real precursor of reduced change success.

Originality/value

This study is among the first to show that employees experience change fatigue and change cynicism differently, depending on the reason underlying the change. It is also among the first to show that change fatigue does not affect change success directly but does so through the interplay of change cynicism.

Details

Journal of Organizational Change Management, vol. 34 no. 1
Type: Research Article
ISSN: 0953-4814

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Article
Publication date: 1 February 1990

E.E. de Kluizenaar

In Part 1, background information on mechanical properties and metallurgy of solder alloys and soldered joints has been presented. In this part, mechanisms of damage and…

Abstract

In Part 1, background information on mechanical properties and metallurgy of solder alloys and soldered joints has been presented. In this part, mechanisms of damage and degradation of components and soldered joints during soldering, during transport, and during field life are discussed. Thermal shock damage of components and excessive dissolution of metallisations are the major effects during soldering. During transport, fatigue of leads and fracture may be caused by vibration and mechanical shocks respectively. During field life, degradation is governed primarily by low cycle fatigue of the solder and incidentally also by formation of intermetallic diffusion layers between solder and base metals. This article contains an extended illustration of solder fatigue of joints on a variety of component and board types. Finally, the influence of the variety of soldered constructions in electronic circuits on solder fatigue is discussed.

Details

Soldering & Surface Mount Technology, vol. 2 no. 2
Type: Research Article
ISSN: 0954-0911

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Article
Publication date: 1 June 1996

Bryan Vila

Conducts a pilot study on excessive fatigue in patrol officers of high crime rate areas, using data collected by 53 telephone esquires. Compares police overtime to that…

Abstract

Conducts a pilot study on excessive fatigue in patrol officers of high crime rate areas, using data collected by 53 telephone esquires. Compares police overtime to that considered acceptable in other professions where public safety is implicated and finds that police receive unfavorable treatment. Considers the vulnerability of police to the effects of fatigue and the potential costs of fatigue on cognitive performance, misconduct, health and safety. Remarks that police are culturally constrained to accept fatigue; that managers depend on overtime to cope with fluctuating demands and to operate within economic limits; that police are obliged to spend lengthy hours in court; that officers can become dependent on overtime pay. Suggests inter alia that community policing will help in avoiding “exhausted crusaders”. Advocates use of self‐regulation, peer monitoring and health care, use of improved technology, modifying work schedules, limiting exposure to high crime and considering reforms to civil liability.

Details

American Journal of Police, vol. 15 no. 2
Type: Research Article
ISSN: 0735-8547

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Article
Publication date: 7 October 2020

Rocco Palumbo

The disruptions brought by COVID-19 pandemic compelled a large part of public sector employees to remotely work from home. Home-based teleworking ensured the continuity of…

Abstract

Purpose

The disruptions brought by COVID-19 pandemic compelled a large part of public sector employees to remotely work from home. Home-based teleworking ensured the continuity of the provision of public services, reducing disruptions brought by the pandemic. However, little is known about the implications of telecommuting from home on the ability of remote employees to manage the work-life interplay. The article adopts a retrospective approach, investigating data provided by the sixth European Working Conditions Survey (EWCS) to shed lights into this timely topic.

Design/methodology/approach

An empirical, quantitative research design was crafted. On the one hand, the direct effects of telecommuting from home on work-life balance were investigated. On the other hand, work engagement and perceived work-related fatigue were included in the empirical analysis as mediating variables which intervene in the relationship between telecommuting from home and work-life balance.

Findings

Home-based telecommuting negatively affected the work-life balance of public servants. Employees who remotely worked from home suffered from increased work-to-life and life-to-work conflicts. Telecommuting from home triggered greater work-related fatigue, which worsened the perceived work-life balance. Work engagement positively mediated the negative effects of working from home on work-life balance.

Practical implications

Telecommuting from home has side effects on the ability of remote workers to handle the interplay between work-related commitments and daily life activities. This comes from the overlapping between private life and work, which leads to greater contamination of personal concerns and work duties. Work engagement lessens the perceptions of work-life unbalance. The increased work-related fatigue triggered by remote working may produce a physical and emotional exhaustion of home-based teleworkers.

Originality/value

The article investigates the side effects of remotely working from home on work-life balance, stressing the mediating role of work engagement and work-related fatigue.

Details

International Journal of Public Sector Management, vol. 33 no. 6/7
Type: Research Article
ISSN: 0951-3558

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Book part
Publication date: 11 June 2021

Sven Laumer and Christian Maier

Social media usage, especially social networking sites (SNSs), such as Facebook, Instagram, TikTok, Twitter, WhatsApp, YouTube, and LinkedIn provide lots of benefits to…

Abstract

Social media usage, especially social networking sites (SNSs), such as Facebook, Instagram, TikTok, Twitter, WhatsApp, YouTube, and LinkedIn provide lots of benefits to their users, including fun, information from significant others, and a distraction from real-life problems. In parallel, the authors see that there are also negative consequences, such as stress when using SNS. In 2012, research started to talk about SNS-use stress as a specific form of technostress. Since that early study, 62 articles have been published in peer-reviewed outlets that explain why SNS-users perceive stress. Our literature review uses the transactional model of stress to integrate these articles to propose a transactional model of SNS-use stress. The model indicates social and technical SNS-stressors that trigger psychological, physiological, and behavioural reactions, named SNS-strains. Our findings suggest there are more social SNS-stressors than technical ones. In terms of SNS-strain, research has mainly focussed on psychological, e.g. exhaustion or dissatisfaction, and behavioural, e.g. discontinuous usage intention or distraction, SNS-strains. Based on those results, the authors identify research gaps and provide implications for research, SNS-users, SNS-providers, organisations, and parents. With that, the authors aim to provide a conceptual summary of the past and, simultaneously, a starting point for further research.

Details

Information Technology in Organisations and Societies: Multidisciplinary Perspectives from AI to Technostress
Type: Book
ISBN: 978-1-83909-812-3

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Article
Publication date: 1 December 1959

W.J. Harris

This article concerns the experimental investigations of the effect of frequency of cyclic stressing on the reversed bend fatigue strength of the aluminium alloys 4·4 per…

Abstract

This article concerns the experimental investigations of the effect of frequency of cyclic stressing on the reversed bend fatigue strength of the aluminium alloys 4·4 per cent Cu‐Mg‐Si‐Mn (L.70, L.71, L.72 and L.73) and the 5 per cent Zn‐Mg‐Cu type (D.T.D.687) over the frequency range 10 to 1,000 cycles per second. The central theme of the theoretical analysis of the experimental work has been based on the working hypothesis that the so‐called frequency effect on fatigue strength, as normally measured by fatigue tests in air, contains, in most cases, an appreciable corrosion fatigue factor together with the true frequency effect. The corrosion fatigue factor, being time and frequency dependent, becomes dominant after an appreciable time exposure whilst the true frequency effect recedes to insignificance. This state of affairs becomes reversed when considering fatigue strength on a much shorter time basis. A study of the kinetics of corrosion fatigue, and fatigue under normal ambient conditions where complete corrosion protection has been afforded, has led to a method whereby the true frequency effect can be separated from the net effect of corrosion and frequency as measured by ambient fatigue strength values. The extraction of the true frequency effect by this method has resulted in its formulation thus:

Details

Aircraft Engineering and Aerospace Technology, vol. 31 no. 12
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 2 March 2015

Giacomo Frulla, Gianni Avalle and Vito Sapienza

The purpose of this paper is to investigate the effect of fatigue life reduction of 2024 Al alloy for aerospace components due to the corrosive (exfoliation) environment…

Abstract

Purpose

The purpose of this paper is to investigate the effect of fatigue life reduction of 2024 Al alloy for aerospace components due to the corrosive (exfoliation) environment. Both standard fatigue tests on prior corroded samples and fatigue tests conducted with the samples in corrosive solution are developed to define some guidelines for the inclusion of such effect in design and to improve aircraft life management.

Design/methodology/approach

The effect of corrosion is taken into consideration, introducing specific concentration factors into the life estimation relationship. Differences between fatigue in corroded specimens and fatigue in presence of corrosive environment are emphasized. No crack propagation is considered. Two alternative procedures are considered in the analysis: “a-procedure” based on maximum stress calculated on un-corroded sample section; “b-procedure” based on stress calculated on final residual section, including corrosion.

Findings

Related concentration factors are derived and compared by the experimental results with the aid of an original proposed a “power law”. Typical power law (square kt) has been derived to cope with the coupling effect of fatigue and corrosive environment.

Research limitations/implications

The original approach developed in the paper is based on few samples. For this reason, the conclusions are addressed as tendency behaviour.

Practical implications

The combined effect of fatigue load acting in presence of corrosive environment reveals an important reduction in fatigue life that cannot be determined by means of classical fatigue tests performed on prior corroded samples.

Social implications

Specific design updating procedure can be determined to cope with ageing of structures during service improving structural integrity.

Originality/value

The derivation indicates a substantial equivalence of the considered two procedures both in the case of prior corroded samples and in combined situation. This tendency is consistent with the available data results. Original analytical relations are introduced to manage such kind of combined effect revealing consistency of data also if few samples were tested.

Details

Aircraft Engineering and Aerospace Technology: An International Journal, vol. 87 no. 2
Type: Research Article
ISSN: 0002-2667

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