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Article
Publication date: 28 May 2010

Hiroshi Mizukami, Kazuya Hanaori, Koji Takahashi, Akira Tange and Kotoji Ando

Surface defects reduce fatigue strength and may greatly reduce component reliability, particularly in pressure vessel weld regions, springs, and other applications. The fatigue…

Abstract

Purpose

Surface defects reduce fatigue strength and may greatly reduce component reliability, particularly in pressure vessel weld regions, springs, and other applications. The fatigue strength of components, and thus their reliability, can be substantially increased by tensile overloading prior to use. The purpose of this paper is to investigate the effect of tensile overload on small cracks by applying a tensile overload to steel plates containing semicircular slits that simulate small surface cracks and by determining the degree of increase in the fatigue strength. The effect of tensile overload on the apparent fatigue threshold stress intensity factor range (ΔKth) was also investigated.

Design/methodology/approach

A tensile overload stress of 1,000 or 1,200 MPa was applied once to all test pieces. Then, bending fatigue tests were conducted with a stress ratio R=0.1. The slit region was subjected to applied cyclic tensile stress by four‐point bending throughout the fatigue test. A test specimen to which no overload stress was applied was tested for comparison.

Findings

The improvement in ΔKth by tensile overload is observed in the specimen with a small crack like surface defect. However, in the specimen with a small crack like surface defect, the improvement in ΔKth by tensile overload is saturated as increasing tensile overload. The improvement rate of ΔKth by tensile overload and the upper limits of improvement in ΔKth were predicted. The predicted values of the improvement rate of K were well in agreement with the experimental results.

Practical implications

The proposed method can be applied to pressure vessels and springs.

Originality/value

The overload effects on fatigue strength are studied for large cracks. However, the effect is not understood at all for small cracks. This study focused the over load effects for small cracks. This is the original point of the present study.

Details

International Journal of Structural Integrity, vol. 1 no. 2
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 13 August 2024

Abdulrazaq Kayode Abdulkareem, Abdulrasaq Ajadi Ishola, Muhammed Lawan Bello and Abdulhakeem Adejumo

This study aims to investigate the effects of digital overload on job autonomy and job satisfaction among civil servants in the Nigerian public sector using the job…

Abstract

Purpose

This study aims to investigate the effects of digital overload on job autonomy and job satisfaction among civil servants in the Nigerian public sector using the job demand–resources model.

Design/methodology/approach

A questionnaire survey was conducted among mid-career and senior-level officers in five federal ministries in Nigeria. The collected data were analyzed by using structural equation modeling partial least squares to test the research hypotheses and necessary condition analysis to assess the necessary conditions for high satisfaction among civil servants.

Findings

The study reveals that the use of information and communication technology (ICT) has a significant positive impact on digital overload. Furthermore, digital overload has a significant negative effect on job autonomy and adversely affects job satisfaction. Additionally, job autonomy partially mediates the relationship between digital overload and job satisfaction. Job autonomy and ICT use were found to be necessary conditions for high satisfaction.

Research limitations/implications

The study acknowledges certain limitations, such as the focus on civil servants in federal ministries in Nigeria and the reliance on self-reported data.

Practical implications

The findings of this study have practical implications for policymakers in the Nigerian civil service. They highlight the importance of reducing digital overload and promoting job autonomy to enhance job satisfaction, as well as to improve the overall performance and efficiency of the public sector.

Originality/value

This study contributes to the existing literature by providing insights into the detrimental effects of digital overload on civil servants’ job autonomy and satisfaction in the Nigerian public sector. It explores a relatively unexplored aspect of digitalization and emphasizes the need to address the negative implications of digital overload. Additionally, it examines the necessary conditions for high satisfaction among civil servants.

Details

Journal of Information, Communication and Ethics in Society, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1477-996X

Keywords

Open Access
Article
Publication date: 30 May 2024

Heng Zhang, Hongxiu Li, Chenglong Li and Xinyuan Lu

The purpose of this study is to examine how the interplay of stressor (e.g. fear of missing out, FoMO) and strains (e.g. perceived social overload, communication overload

Abstract

Purpose

The purpose of this study is to examine how the interplay of stressor (e.g. fear of missing out, FoMO) and strains (e.g. perceived social overload, communication overload, information overload and system feature overload) in social networking sites (SNS) use can contribute to users’ SNS fatigue from a configurational view.

Design/methodology/approach

Data were collected among 363 SNS users in China via an online survey, and fuzzy-set qualitative comparative analysis (fsQCA) was applied in this study to scrutinize the different combinations of FoMO and overload that contribute to the same outcome of SNS fatigue.

Findings

Six combinations of casual conditions were identified to underlie SNS fatigue. The results showed that FoMO, perceived information overload and system feature overload are the core conditions that contribute to SNS fatigue when combined with other types of overloads.

Originality/value

The current work supplements the research findings on SNS fatigue by identifying the configurations contributing to SNS fatigue from the joint effects of stressor (FoMO) and strain (perceived social overload, communication overload, information overload and system feature overload) and by providing explanations for SNS fatigue from the configurational perspective.

Details

Internet Research, vol. 34 no. 7
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 27 May 2024

Aamir Suhail, Inam Ul Haq, Muhammad Umer Azeem and Eran Vigoda-Gadot

This study investigates how compulsory citizenship behaviors (CCB) affect employees’ energy and motivation to engage in other voluntary behaviors, such as service-oriented…

Abstract

Purpose

This study investigates how compulsory citizenship behaviors (CCB) affect employees’ energy and motivation to engage in other voluntary behaviors, such as service-oriented citizenship behavior and creativity. Specifically, we explore how employees’ perceptions of job overload mediate this relationship, based on their generational differences.

Design/methodology/approach

This study employed a time-lagged survey design to collect data from 265 frontline employees and their supervisors in Pakistani-based organizations. The data was collected in three rounds, with a three-week gap between each round.

Findings

The findings suggest that role overload, resulting from compulsory citizenship pressure, undermines millennial employees' service-oriented organizational citizenship behavior (OCB) and creativity. However, these negative effects are less salient among non-millennials.

Practical implications

The findings of this study provide valuable insights for managers, emphasizing the importance of exercising caution when imposing excessive citizenship pressures on employees against their will. In addition, organizations and human resource (HR) managers should consider devising policies for formal recognition of voluntary behaviors that contribute to organizational effectiveness.

Originality/value

This study contributes to existing CCB research by unraveling the previously unexplored mediating role of role overload and the contingency role of generational difference in explaining how and when coerced citizenship demands hinder employees’ propensity to engage in service-oriented OCB and creativity.

Details

Personnel Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0048-3486

Keywords

Article
Publication date: 24 May 2024

Yuan Sun, Shuyue Fang, Anand Jeyaraj and Mengyi Zhu

This study aims to explore how communication visibility affects employees’ work engagement from the negative perspective of employees’ perceived overload in the context of…

Abstract

Purpose

This study aims to explore how communication visibility affects employees’ work engagement from the negative perspective of employees’ perceived overload in the context of enterprise social media (ESM) and the role of ESM policies in the relationship between communication visibility and perceived overload.

Design/methodology/approach

This study examines how communication visibility (i.e. message transparency and network translucence) affects employees’ perceived overload (i.e. information overload and social overload), which in turn affects employees’ work engagement, and how ESM policies moderate the relationship between communication visibility and perceived overload. Partial least squares (PLS) analysis was conducted on data gathered from 224 ESM users in workplaces.

Findings

Communication visibility has significant positive impacts on perceived overload, perceived overload has significant negative impacts on work engagement and ESM policies negatively moderate the relationships between communication visibility and perceived overload, except for the relationship between message transparency and social overload.

Practical implications

The findings provide new insights for organizational managers to formulate ESM policies to mitigate perceived overload and guidance for ESM developers to improve ESM functions to alleviate perceived overload.

Originality/value

This study provides empirical evidence to explain the role of communication visibility and perceived overload in employees’ work engagement, which contributes to the existing literature on the negative impacts of communication visibility.

Details

Internet Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 13 June 2024

Hua Pang and Yanxinyue Liu

The principal purposes of the research are to empirically investigate three forms of perceived overload on social media and shed light on their associations with users’ passive…

Abstract

Purpose

The principal purposes of the research are to empirically investigate three forms of perceived overload on social media and shed light on their associations with users’ passive usage intention by contemplating the mediating influence of social network exhaustion and discontented feelings.

Design/methodology/approach

This study employed a cross-sectional methodology to collect statistical data (N = 679) from WeChat users in mainland China. Primitive analysis, confirmatory factor analysis and structural equation modeling were employed to test the corresponding hypotheses.

Findings

The findings reveal that three dimensions of perceived overload influence social network exhaustion positively. In addition, communication overload and system feature overload exert positive impacts on the discontented feeling. Furthermore, it is uncovered that social network exhaustion and discontented feeling are related to passive usage intention positively.

Research limitations/implications

Theoretically, this paper offers a conceptual framework to explicate passive usage intention through elucidating social network exhaustion and the discontented feeling that arises from perceived overload in contemporary social media-mediated environments. Practically, the current research has certain realistic implications for WeChat users and SNS operators.

Originality/value

Probing what triggers people’s passive usage intention of social media has been an emerging theme in recent years, yet there is a dearth of discourse that delves into the antecedents of WeChat users’ passive usage intention. The results obtained from the study have enhanced the understanding of the adverse consequences associated with the utilization of social media in mainland China.

Details

Internet Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 26 March 2024

Chunmei Gan

User discontinuance on short-video platform has become increasingly prevalent in recent years. Short-video discontinuance refers to reduced use, controlled use or suspended use of…

Abstract

Purpose

User discontinuance on short-video platform has become increasingly prevalent in recent years. Short-video discontinuance refers to reduced use, controlled use or suspended use of the short-video platform. In this study, we examined factors associated with discontinuance behavior on short-video platform.

Design/methodology/approach

From the perspective of stressor–strain–outcome (SSO), we put forward a theoretical model integrating perceived information overload and perceived system feature overload (stressors), dissatisfaction (psychological strain), flow experience and regret to explain discontinuance behavior on short-video platform (behavioral outcome). We collected 482 survey data from Douyin users in China, and empirically examined the proposed research model via Partial least squares structural equation modeling (PLS-SEM) technique.

Findings

Our results demonstrated that perceived system feature overload exerts a positive effect on perceived information overload. Perceived system feature overload has a stronger influence on dissatisfaction than perceived information overload. Regret increases user dissatisfaction, while flow experience decreases user dissatisfaction. We also discovered that dissatisfaction and regret have significant positive effects on discontinuance behavior. Interestingly, flow exerts no significant influence on discontinuance behavior.

Originality/value

This study enriches the body of knowledge on social media discontinuance by revealing the interaction and effects of flow experience, dissatisfaction and regret on discontinuance. This study also extends the understanding on the complex role of flow experience in leading to social media discontinuance. Additionally, this study deepens the research on the interaction between perceived system feature overload and perceived information overload as well as their different influences on negative emotion.

Details

Online Information Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1468-4527

Keywords

Book part
Publication date: 3 May 2012

Bruce R. Neumann, Eric Cauvin and Michael L. Roberts

In the growing debate about designing new management control systems (MCS) to include stakeholder values, there has been little discussion about information overload. Stakeholder…

Abstract

In the growing debate about designing new management control systems (MCS) to include stakeholder values, there has been little discussion about information overload. Stakeholder advocates call for including more environmental and related social disclosures but do not consider how information overload might impair the use and interpretation of corporate performance measures. As we know, shareholders and boards of directors are most concerned with market data such as earnings per share, dividend rates, and market value growth. In this chapter, we assert that management control system designers must consider information overload before expanding the MCS to include social and nonfinancial disclosures.

The paradox in expanding MCS is that demand for sustainability performance measures will likely result in overload for both information preparers and information users. Corporate Social Responsibility (CSR) and similar sustainability disclosures are likely to overload MCS and overwhelm the readers and users by performance reports that include multiple dimensions.

CSR affects the design of companies' annual reports because stakeholders are increasingly concerned with how organizations address their social responsibilities and how they disclose their societal responses. Management accountants are accustomed to providing performance measures within an organization and MCS usually have an internal focus. CFOs are often not accustomed to balancing the needs of stakeholders with those of managers and owners. We suggest that companies and CFOs will face an information overload dilemma in making these determinations, and that users will be overloaded in sifting through the multiple dimensions of information that are increasingly being provided. We suggest that the bias toward financial performance measures will distort both the provision of relevant information and the use of sustainability performance measures. We modified the Epstein and Roy sustainability model (2001) to illustrate some of these potential impacts.

We note that the balanced scorecard (BSC) was developed as one such tool to reflect and communicate multiple measures. We summarize a previous study showing how managers ignored multiple performance measures in a performance scorecard study. We then relate our results to some of the information overload literature to support our suggestion that stakeholders will face many of the same information overload issues and constraints when using and processing social disclosures.

Our summary of the information overload literature results in a call for more interdisciplinary information overload research involving real-world contexts and tasks. We note that most of the extant information overload literature is restricted to discipline-based silo-oriented studies and to simplistic evaluations, brand identification, or forecasting tasks. Our study went into some depth to describe the business, its strategies and objectives, and a comparison of actual results to specific goals. As management control systems evolve or are designed to report sustainability data, the issues surrounding increasing complexity and information overload will become exponentially problematic. We suggest that future research also include consideration of information overload conditions facing preparers and disclosers of sustainability measures.

Article
Publication date: 22 September 2023

Luminita Hurbean, Louie H.M. Wong, Carol XJ Ou, Robert M. Davison and Octavian Dospinescu

The authors investigate the relationship between instant messenger (IM) use and work performance, mediated by interruptions and two key indicators of the stress associated with…

Abstract

Purpose

The authors investigate the relationship between instant messenger (IM) use and work performance, mediated by interruptions and two key indicators of the stress associated with technology use: overload and complexity.

Design/methodology/approach

The authors validate this research model using partial least squares structural equation modelling (PLS-SEM) with data collected through a survey of 416 working professionals.

Findings

The data reveal that while IM use contributes minimally to work interruptions and to a greater extent to technological complexity, these two constructs fully mediate the direct influence of IM use at work on technology overload, and meanwhile significantly and directly contribute to work performance.

Research limitations/implications

This research provides theoretical insights into the deployment of IM and its actual impacts in the workplace. To improve the generalisation of the findings, the authors call for more IM-related research in other countries, with more native theories and various methodologies in this domain.

Practical implications

The level of stress generated through IM use is moderate, considering IM is not a significant contributor to work interruptions. Thus, despite the potential negative effects of IM communication, the positive effects of using IM at work prevail. As a result, the technology can be promoted as long as employees, their managers and the organisation as a whole are well prepared. Employees can transfer skills and behaviour from the personal setting to their work environment and thus may find an intrinsic motivation to make better use of the IM technology at work.

Originality/value

The authors argue that this research model is novel for its perspective on evaluating the actual impacts of IM use at work instead of the reasons of using it. The authors conceptualise the process to explain how IM contributes to interruptions and other technostress indicators in the working context, and the impact on performance. Contrary to some prior research, the authors find that overall IM applications do not have a negative impact on work performance, and instead may enhance it.

Details

Information Technology & People, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0959-3845

Keywords

Article
Publication date: 26 October 2023

Linhao Han, Tao Wang, Yu Jia, Yinger Ye, Tianyuan Liu and Jiayu Lv

This study investigates how role overload in the sharing economy leads to emotional exhaustion, which restricts value co-creation activity, and also investigates the moderating…

Abstract

Purpose

This study investigates how role overload in the sharing economy leads to emotional exhaustion, which restricts value co-creation activity, and also investigates the moderating effect of perceived platform support.

Design/methodology/approach

Two experimental investigations and field research questionnaires were given to respondents with shared mobility industry expertise.

Findings

First, role overload detrimentally affects service providers' value co-creation behavior; second, emotional exhaustion acts as a mediator between role overload and value co-creation behavior; and finally, perceived platform support moderates the adverse effect of role overload on emotional exhaustion.

Originality/value

To the best of the authors' knowledge, this study is the first to explore the antecedents of value co-creation behavior from the service provider's perspective, extending the application of COR theory in a sharing economy context.

Research limitations

First, alternative mediators between role overload and emotional exhaustion were not identified. Second, other dimensions of role overload and their impacts were not examined. Lastly, this study did not explore broader perspectives beyond algorithms.

Practical implications

This study recommends that managers reduce role overload ex ante in terms of clarifying responsibilities and obligations, providing substantive resource support and rationalizing order allocation, respectively.

Details

Journal of Research in Interactive Marketing, vol. 18 no. 4
Type: Research Article
ISSN: 2040-7122

Keywords

1 – 10 of over 16000