Search results

1 – 10 of over 106000
To view the access options for this content please click here
Article
Publication date: 13 October 2021

Ana Junça Silva and Cannanda Lopes

This study aimed to (1) analyze whether the perceived organizational support (POS) was a significant predictor of performance and stress and (2) explore the mediating role…

Abstract

Purpose

This study aimed to (1) analyze whether the perceived organizational support (POS) was a significant predictor of performance and stress and (2) explore the mediating role of engagement in these relations.

Design/methodology/approach

To test the hypotheses, the authors collected data with 200 working adults in a mandatory quarantine due to COVID-19 pandemic crisis.

Findings

The results showed that the POS contributed to increase engagement, and consequently, job performance. These relations also proved to be significant for stress, because when the POS increased, the work engagement also increased, and as a result decreased occupational stress.

Research limitations/implications

This study relied on a cross-sectional design. Therefore, future research should consider a daily design to replicate this study and analyze daily fluctuations. Overall, the authors can conclude that work engagement is an affective process through which POS decreases stress and increases performance.

Originality/value

This study tests the mediating effect of work engagement on the link between POS, stress and performance, and its theoretical and practical implications of these findings are discussed.

Details

Journal of Economic and Administrative Sciences, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1026-4116

Keywords

To view the access options for this content please click here
Article
Publication date: 20 October 2021

Zhen Zhang and Min Min

Although scholars have provided sufficient empirical evidence on the effect of peer knowledge hiding on new product development (NPD) project team outcomes, little…

Abstract

Purpose

Although scholars have provided sufficient empirical evidence on the effect of peer knowledge hiding on new product development (NPD) project team outcomes, little attention has been given to the relationship between project manager knowledge hiding and individual outcomes. Drawing on the job resources-demands model and a dyadic stressor perspective, this study aims to explore the effect of project manager knowledge hiding on subordinates’ turnover intentions as well as the mediating roles of challenge- and hindrance-related stress.

Design/methodology/approach

This study conducted a multiple-source survey of NPD project managers and their subordinates in China. Hypotheses were tested by using data collected from 171 manager–subordinate dyads in NPD projects.

Findings

The findings revealed that project manager knowledge hiding was positively associated with subordinates’ turnover intentions, challenge-related stress and hindrance-related stress. Project manager knowledge hiding imposed a positive indirect effect on turnover intentions through hindrance-related stress, whereas the mediating effect of challenge-related stress was not significant.

Originality/value

To the best of the authors’ knowledge, this study is one of the first to investigate the individual outcomes of top-down knowledge hiding as well as the mediating roles of challenge- and hindrance-related stress in the context of NPD projects.

Details

Journal of Knowledge Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1367-3270

Keywords

Content available
Article
Publication date: 7 October 2021

Vadym Mozgovoy

The authors aim to develop a conceptual framework for longitudinal estimation of stress-related states in the wild (IW), based on the machine learning (ML) algorithms that…

Abstract

Purpose

The authors aim to develop a conceptual framework for longitudinal estimation of stress-related states in the wild (IW), based on the machine learning (ML) algorithms that use physiological and non-physiological bio-sensor data.

Design/methodology/approach

The authors propose a conceptual framework for longitudinal estimation of stress-related states consisting of four blocks: (1) identification; (2) validation; (3) measurement and (4) visualization. The authors implement each step of the proposed conceptual framework, using the example of Gaussian mixture model (GMM) and K-means algorithm. These ML algorithms are trained on the data of 18 workers from the public administration sector who wore biometric devices for about two months.

Findings

The authors confirm the convergent validity of a proposed conceptual framework IW. Empirical data analysis suggests that two-cluster models achieve five-fold cross-validation accuracy exceeding 70% in identifying stress. Coefficient of accuracy decreases for three-cluster models achieving around 45%. The authors conclude that identification models may serve to derive longitudinal stress-related measures.

Research limitations/implications

Proposed conceptual framework may guide researchers in creating validated stress-related indicators. At the same time, physiological sensing of stress through identification models is limited because of subject-specific reactions to stressors.

Practical implications

Longitudinal indicators on stress allow estimation of long-term impact coming from external environment on stress-related states. Such stress-related indicators can become an integral part of mobile/web/computer applications supporting stress management programs.

Social implications

Timely identification of excessive stress may improve individual well-being and prevent development stress-related diseases.

Originality/value

The study develops a novel conceptual framework for longitudinal estimation of stress-related states using physiological and non-physiological bio-sensor data, given that scientific knowledge on validated longitudinal indicators of stress is in emergent state.

Details

Applied Computing and Informatics, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2634-1964

Keywords

To view the access options for this content please click here
Article
Publication date: 6 October 2021

Rabindra Kumar Pradhan, Kailash Jandu, Madhusmita Panda, Lopamudra Hati and Manolina Mallick

Employee happiness is crucial in any organization as happy employees are said to be more committed in their work. However, COVID-19 stress in the current situation is a…

Abstract

Purpose

Employee happiness is crucial in any organization as happy employees are said to be more committed in their work. However, COVID-19 stress in the current situation is a major problem for employees and it can negatively influence their happiness level. Therefore, it is critical to understand how the stressful nature of the current pandemic threatens workplace happiness. Based on conservation of resources theory (Hobfoll, 1989), this study aims to examine the resources to be protected (i.e. psychological capital) and resource investment (i.e. coping) to ensure the happiness of the employees amidst a bio-psycho-socioeconomic crisis like COVID-19 pandemic. The study explores the mediating role of psychological capital and the moderating effect of coping on the relationship between COVID-19 stress and employee happiness.

Design/methodology/approach

Data were collected from the Indian working population by means of purposive sampling (N = 336). Standardized instruments were used to measure the variables under study. Data analysis were done using Statistical Package for Social Sciences 20.0 and Analysis of Moment Structure 20.0 software tools and PROCESS macro was used for mediation and moderation analysis.

Findings

Structural equation modelling analysis showed that COVID-19 stress negatively influenced employee happiness; whereas psychological capital partially mediated the relationship between these two variables. Further, coping was found to buffer against the harmful implications of COVID-19 stress on employee happiness.

Originality/value

In an effort to respond timely to the present pandemic scenario, the current study provides an account of the harmful effects of COVID-19-related stress on the workplace happiness of the Indian service sector employees. The study also offers insights into the possible mediating and moderating mechanisms in this relationship.

Details

Journal of Asia Business Studies, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1558-7894

Keywords

To view the access options for this content please click here
Article
Publication date: 21 September 2021

Karen Landay, David F. Arena Jr and Dennis Allen King

Anecdotal and survey reports indicate that nurses are suffering increased stress and burnout due to the coronavirus disease (COVID-19) pandemic. Therefore, this study…

Abstract

Purpose

Anecdotal and survey reports indicate that nurses are suffering increased stress and burnout due to the coronavirus disease (COVID-19) pandemic. Therefore, this study investigated two forms of passion, harmonious and obsessive passion, as resources that may indirectly predict two forms of burnout, disengagement and exhaustion, through the mediator of job stress.

Design/methodology/approach

The authors tested their hypotheses in a mediation model using a sample of nurses surveyed at three timepoints during the COVID-19 pandemic.

Findings

As hypothesized, harmonious passion indirectly decreased disengagement and exhaustion by decreasing job stress. Contrary to authors’ hypotheses, obsessive passion also indirectly decreased (rather than increased, as hypothesized) both disengagement and exhaustion by decreasing job stress. Harmonious, but not obsessive, passion, was significantly negatively directly related to disengagement and exhaustion.

Research limitations/implications

Data were collected during the COVID-19 pandemic, which may have impacted nurses’ work environments and their willingness to respond.

Originality/value

This study extends conservation of resources theory to conceptualize harmonious and obsessive passion as resources with differing outcomes based on their contrasting identity internalization, per the Dualistic Model of Passion. This study also operationalizes burnout more comprehensively by including cognitive and physical exhaustion along with emotional exhaustion, as well as disengagement. By collecting responses at three timepoints, this study provides a more robust test of causality than previous work examining passion and burnout.

Details

Journal of Managerial Psychology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0268-3946

Keywords

To view the access options for this content please click here
Article
Publication date: 28 September 2021

Yao Lu, Dejian Li, Kai Wang and Zhen Li

Over-limit transportation has the characteristics of large axle load, large number of axles and lateral distribution width. Under the action of over-limit load, the…

Abstract

Purpose

Over-limit transportation has the characteristics of large axle load, large number of axles and lateral distribution width. Under the action of over-limit load, the coupling vibration effect of vehicle–bridge is more obvious, and the deformation of bridge components is large. Thus, research and analysis of the vehicle–bridge coupling dynamic response of long-span bridges under over-limit transportation has practical engineering significance.

Design/methodology/approach

Based on the principle of invariable elastic potential energy, this paper derives dynamic model of over-limit transportation n-axis flat vehicle. The numerical simulation method is used to model and calculate a cable-stayed bridge, and the static effect of the cable-stayed bridge and the dynamic response of vehicle–bridge coupling under different parameters are compared and analyzed.

Findings

The focus is on the influence of vehicle load and vehicle velocity parameters on the stress and amplitude of different cables under over-limit transportation, and the corresponding variation law is obtained.

Originality/value

The research on the coupled dynamic response of cable-stayed bridges has attracted the attention of many scholars, but there are relatively few studies on the coupled vibration of out-limit vehicles and bridges. In this paper, based on finite element software, a vehicle–bridge coupling model under bulk transportation is established.

Details

International Journal of Structural Integrity, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1757-9864

Keywords

To view the access options for this content please click here
Article
Publication date: 27 September 2021

Xushan Zhao, Yuanxun Wang, Guilan Wang, Runsheng Li and Haiou Zhang

This paper aims to summarize the influence law of hybrid deposited and micro-rolling (HDMR) technology on the shaping strain and residual stress. And the rolling…

Abstract

Purpose

This paper aims to summarize the influence law of hybrid deposited and micro-rolling (HDMR) technology on the shaping strain and residual stress. And the rolling parameters combination was further optimized to guide the actual production.

Design/methodology/approach

This paper proposed a three-dimensional coupled thermo-mechanical model of the HDMR process. The validated model is used to investigate the influences of rolling parameters on stress and plastic strain (the distance between the energy source and roller [De–r], the rolling compression [cr] and the friction coefficient [fr]). The orthogonal optimization of three factors and three levels was carried out. The influence of rolling parameters on the plastic strain and residual stress is analyzed.

Findings

The simulation results show that HDMR technology can effectively increase the shaping strain of the weld bead and reduce the residual tensile stress on the weld bead surface. Furthermore, the influence of rolling parameters on stress and strain is obtained by orthogonal analysis, and the corresponding optimal combination is proposed. Also, the rolling temperature significantly affects the residual stress, and the rolling reduction has a substantial effect on the plastic deformation.

Research limitations/implications

Owing to the choice of research methods, this paper failed to study microstructure evolution.

Originality/value

This paper provides a reference principle for the optimal selection of rolling parameters in HDMR.

Details

Rapid Prototyping Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1355-2546

Keywords

To view the access options for this content please click here
Article
Publication date: 9 September 2021

Lin Chen, Huisheng Yang, Yanjing Su and Lijie Qiao

The purpose of this study is to develop the existence and mechanism of stress corrosion cracking (SCC) for A517 steel in marine environments.

Abstract

Purpose

The purpose of this study is to develop the existence and mechanism of stress corrosion cracking (SCC) for A517 steel in marine environments.

Design/methodology/approach

Slow strain rate test (SSRT) and constant load tests were used to investigate the SCC susceptibility of A517 steel. In addition, the additive stresses caused by the corrosion film and hydrogen entering into steel were applied to reveal the fundamental mechanism of the SCC.

Findings

The SCC susceptibility increased due to anodic dissolution and additive stress caused by the corrosion-produced film under anode polarization. Furthermore, the SCC susceptibility increased with increasing cathodic polarization, which is due to the increased additional stress caused by hydrogen entering into the steel. However, when the cathode polarization further increased, the additional stress remained due to the constant hydrogen content, thus the SCC susceptibility did not vary. Moreover, the SCC susceptibility of A517 steel under an alternate immersion environment (AIE) was lower than that under a full immersion environment and the steel under the AIE with 0.5 W/D had the lowest SCC susceptibility.

Originality/value

The stress corrosion behaviors of A517 in marine environments under various conditions were systematically analyzed.

Details

Anti-Corrosion Methods and Materials, vol. 68 no. 5
Type: Research Article
ISSN: 0003-5599

Keywords

To view the access options for this content please click here
Article
Publication date: 14 September 2021

Alex Aruldoss, Kellyann Berube Kowalski, Miranda Lakshmi Travis and Satyanarayana Parayitam

The purpose of this study is to investigate the relationship between work–life balance (WLB) and job stress, job commitment and job satisfaction. Further, the role of work…

Abstract

Purpose

The purpose of this study is to investigate the relationship between work–life balance (WLB) and job stress, job commitment and job satisfaction. Further, the role of work environment and training and development as moderators in the relationship between WLB and its consequences is investigated.

Design/methodology/approach

Using a structured survey instrument, this paper gathered data from 331 respondents working in a transportation company in southern part of India. After checking the psychometric properties of the structured survey instrument, the authors analyzed data using hierarchical regression and structural equation modeling.

Findings

The hierarchical regression results indicated that WLB is (1) negatively related to job stress, (2) positively related to job satisfaction and (3) positively related to job commitment. The results also indicated that (1) job stress is negatively related to job satisfaction, and (2) job commitment is positively related to job satisfaction. The results also support that work environment is a moderator in the relationship between (1) WLB and job stress, and (2) WLB and job satisfaction. Results also documented that training and development is a moderator in the relationship between (1) job stress and job satisfaction, and (2) job commitment and job satisfaction.

Research limitations/implications

Since the present research is based on self-report measures, the limitations of common method bias and social desirability are inherent. However, the authors have taken sufficient care to minimize these limitations. The research has implications for managers in work organizations.

Practical implications

This study contributes to both literature on human resource management and practicing managers. The study suggests that employers need to be aware of the importance of WLB and invest moneys into training and development programs. Results also suggest maintaining congenial work environment to help employees maintain balance between work and life.

Social implications

The study is expected to contribute to the welfare of the society in terms of identifying the consequences of WLB.

Originality/value

This study provides new insights about the consequences of WLB through moderating role of training and development and work environment. To the authors’ knowledge, this is a conceptual model developed and tested and first of its kind in India.

Details

Journal of Advances in Management Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0972-7981

Keywords

To view the access options for this content please click here
Article
Publication date: 24 August 2021

Ziao Huang, Xiaoshan Liu, Guoqiu He, Zhiqiang Zhou, Bin Ge, Peiwen Le, Jiaqi Pan and Xiaojun Xu

This study aims to understand the multiaxial fretting fatigue, wear and fracture characteristics of 35CrMoA steel under the elliptical loading path.

Abstract

Purpose

This study aims to understand the multiaxial fretting fatigue, wear and fracture characteristics of 35CrMoA steel under the elliptical loading path.

Design/methodology/approach

By keeping the contact pressure and torsional shear cyclic stress amplitude unchanged; the axial cyclic stress amplitude varied from 650 MPa to 850 MPa. The fretting fatigue test was carried out on MTS809 testing machine, and the axial cyclic strain response and fatigue life of the material were analyzed. The fretting zone and fracture surface morphology were observed by scanning electron microscope. The composition of wear debris was detected by energy dispersive X-ray spectrometer.

Findings

In this study, with the increase of axial stress amplitude, 35CrMoA steel will be continuously softened, and the cyclic softening degree increases. The fretting fatigue life decreases unevenly. The fretting scars in the stick region are elongated in the axial direction. The area of fracture crack propagation zone decreases. In addition, the results indicate that wear debris in the slip region is spherical and has higher oxygen content.

Originality/value

There were few literatures about the multiaxial fretting fatigue behavior of 35CrMoA steel, and most scholars focused on the contact pressure. This paper reveals the effect of axial cyclic stress on fretting fatigue and wear of 35CrMoA steel under the elliptical loading path.

Details

Industrial Lubrication and Tribology, vol. 73 no. 6
Type: Research Article
ISSN: 0036-8792

Keywords

1 – 10 of over 106000