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1 – 10 of 571Geming Zhang, Lin Yang and Wenxiang Jiang
The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China, which is…
Abstract
Purpose
The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China, which is based on P-wave earthquake early-warning and multiple ways of rapid treatment.
Design/methodology/approach
The paper describes the key technologies that are involved in the development of the system, such as P-wave identification and earthquake early-warning, multi-source seismic information fusion and earthquake emergency treatment technologies. The paper also presents the test results of the system, which show that it has complete functions and its major performance indicators meet the design requirements.
Findings
The study demonstrates that the high speed railways earthquake early-warning system serves as an important technical tool for high speed railways to cope with the threat of earthquake to the operation safety. The key technical indicators of the system have excellent performance: The first report time of the P-wave is less than three seconds. From the first arrival of P-wave to the beginning of train braking, the total delay of onboard emergency treatment is 3.63 seconds under 95% probability. The average total delay for power failures triggered by substations is 3.3 seconds.
Originality/value
The paper provides a valuable reference for the research and development of earthquake early-warning system for high speed railways in other countries and regions. It also contributes to the earthquake prevention and disaster reduction efforts.
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José Manuel de la Torre-Ruiz, Eulogio Cordón-Pozo, María Dolores Vidal Salazar and Alejandro Ortiz-Perez
Pay communication policies continue to garner attention in human resource management. This article draws on social exchange theory to examine the consequences of different types…
Abstract
Purpose
Pay communication policies continue to garner attention in human resource management. This article draws on social exchange theory to examine the consequences of different types of pay information on employees' perceived organizational support (POS). Similarly, it draws on the relational model to examine whether pay level satisfaction and satisfaction with variable pay and pay raise procedures mediate the relationships between the different types of pay information and employee POS.
Design/methodology/approach
The hypothesized model was tested using structural equation modeling in a sample of 695 employees of Spanish firms.
Findings
The five types of pay information considered in this study did not have a direct effect on employee POS. Furthermore, distributive base pay information and distributive base pay information on other employees in the firm and in the industry had an indirect influence on POS through the multiple mediating effect of pay comparison and pay level satisfaction. Finally, procedural variable pay and procedural pay raise information were indirectly related to employee POS through satisfaction with pay procedures.
Originality/value
This study highlights the importance of considering the type of pay information provided to employees and the need to understand the mediating variables that explain how each type of pay information can influence employees’ POS.
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Rizaldi Yusfiarto, Indri Supriani, Lu’liyatul Mutmainah, Lukman Hamdani, Annes Nisrina Khoirunnisa and Muhammad Hanif Ibrahim
The purpose of this study is to explore a theoretical model using the unified theory of acceptance and use of technology framework by adding Islamic compliance (IC) and security…
Abstract
Purpose
The purpose of this study is to explore a theoretical model using the unified theory of acceptance and use of technology framework by adding Islamic compliance (IC) and security assurance to build antecedents of intention to use Islamic internet-only banks (IIOBs) in Muslim youth.
Design/methodology/approach
This study involved 262 Muslim youths from several Islamic communities in Indonesia. The analysis was conducted using partial least squares structural equation modelling (PLS-SEM). Moreover, PLS techniques such as the variance accounted for (VAF) were used to verify the statistical analysis of findings.
Findings
The findings show that effort expectancy (EE) and online social influences (OSI) strongly correlate with the intention to use IIOBs. In addition, user reviews (online reviews) are proven to form a solid social influence and impact consumer decision-making. Finally, IC and security assurance are still critical factors in the IIOBs acceptance.
Practical implications
Practically, IIOB providers need to strengthen information about performance, accessibility, security and benefits when running service applications. Providers must show their strengths and advantages compared to the traditional banks in various service lines. Besides, providers are expected to be more careful regarding IC applications in their products and services.
Originality/value
This study considers the effects of OSI, EE, security and IC as the unique characteristics of Muslim youth in using the IIOBs. In particular, the significance of IC and OSIs provides a valid picture of the pathways of acceptance creation towards IIOBs.
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Yanhao Sun, Tao Zhang, Shuxin Ding, Zhiming Yuan and Shengliang Yang
In order to solve the problem of inaccurate calculation of index weights, subjectivity and uncertainty of index assessment in the risk assessment process, this study aims to…
Abstract
Purpose
In order to solve the problem of inaccurate calculation of index weights, subjectivity and uncertainty of index assessment in the risk assessment process, this study aims to propose a scientific and reasonable centralized traffic control (CTC) system risk assessment method.
Design/methodology/approach
First, system-theoretic process analysis (STPA) is used to conduct risk analysis on the CTC system and constructs risk assessment indexes based on this analysis. Then, to enhance the accuracy of weight calculation, the fuzzy analytical hierarchy process (FAHP), fuzzy decision-making trial and evaluation laboratory (FDEMATEL) and entropy weight method are employed to calculate the subjective weight, relative weight and objective weight of each index. These three types of weights are combined using game theory to obtain the combined weight for each index. To reduce subjectivity and uncertainty in the assessment process, the backward cloud generator method is utilized to obtain the numerical character (NC) of the cloud model for each index. The NCs of the indexes are then weighted to derive the comprehensive cloud for risk assessment of the CTC system. This cloud model is used to obtain the CTC system's comprehensive risk assessment. The model's similarity measurement method gauges the likeness between the comprehensive risk assessment cloud and the risk standard cloud. Finally, this process yields the risk assessment results for the CTC system.
Findings
The cloud model can handle the subjectivity and fuzziness in the risk assessment process well. The cloud model-based risk assessment method was applied to the CTC system risk assessment of a railway group and achieved good results.
Originality/value
This study provides a cloud model-based method for risk assessment of CTC systems, which accurately calculates the weight of risk indexes and uses cloud models to reduce uncertainty and subjectivity in the assessment, achieving effective risk assessment of CTC systems. It can provide a reference and theoretical basis for risk management of the CTC system.
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Nasib Dar, Yasir Mansoor Kundi and Zeeshan Hamid
This study examines the direct influence of team-member exchange (TMX) on team innovative work behavior (IWB) and the mediating roles of team knowledge sharing and team job…
Abstract
Purpose
This study examines the direct influence of team-member exchange (TMX) on team innovative work behavior (IWB) and the mediating roles of team knowledge sharing and team job crafting.
Design/methodology/approach
To test our research model, we collected multilevel, multisource, and multi-wave data from 284 employees and 74 teams in Pakistan.
Findings
TMX positively relates to team IWB directly and indirectly via serial mediation of team knowledge sharing and team job crafting.
Originality/value
This is the first study to investigate how TMX promotes team IWB through team knowledge sharing and team job crafting.
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We examined the dynamic volatility connectedness and diversification strategies among US real estate investment trusts (REITs) and green finance indices.
Abstract
Purpose
We examined the dynamic volatility connectedness and diversification strategies among US real estate investment trusts (REITs) and green finance indices.
Design/methodology/approach
The DCC-GARCH dynamic connectedness framework and he DCC-GARCH t-copula model were employed in this study.
Findings
Using daily data from 2,206 observations spanning from 2 January 2015 to 31 January 2023 this paper presents the following findings: (1) cross-market spillovers exhibited a high correlation and significant fluctuations, particularly during extreme events; (2) our analysis confirmed that REIT acted as net receivers from other green indices, with the S&P North America Large-MidCap Carbon Efficient Index dominating the in-network volatility spillover; (3) this observation suggests asymmetric spillovers between the two markets and (4) a portfolio analysis was conducted using the DCC-GARCH t-copula framework to estimate hedging ratios and portfolio weights for these indices. When REIT and the Dow Jones US Select ESG REIT Index were simultaneously added to a risk-hedged portfolio, our findings indicated that no risk-hedging effect could be achieved. Moreover, the cost and performance of hedging green assets using REIT were found to be comparable.
Originality/value
We first examined the dynamic volatility connectedness and diversification strategies among US REITs and green finance indices. The outcomes of this study carry practical implications for market participants.
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Fahruddin Kurdi, Maharani Sekar Putri and Tantut Susanto
This paper aims to examine the relationship between self-care management and quality of life in elderly hypertensives at the Jember Nursing Home.
Abstract
Purpose
This paper aims to examine the relationship between self-care management and quality of life in elderly hypertensives at the Jember Nursing Home.
Design/methodology/approach
Thirty-five respondents were collected for a cross-sectional study with consecutive sampling. This study used the Hypertension Self-Management Behavior Questionnaire and Quality of Life-Elderly, as well as a questionnaire about individual characteristics. Kendall's Tau-b Test was used to analyze the data obtained from this study.
Findings
The majority of the elderly in the Jember Nursing Home reported having moderate self-care management (46.9%) and moderate quality of life (57.1%). This study found a significant positive correlation between self-care management and quality of life (p-value = 0.001), which was weak and significant (r = 0.282).
Research limitations/implications
This research has limitations on the number of respondents used in this study, because this research was only conducted in one place (one site center). Include the respondent's features more in the past history, and only a few are related to the physical health domain. So that further research can be conducted on more respondents, with a wider coverage of locations and adding some of the characteristics of respondents related to the domain of physical and psychological health.
Practical implications
The role of gerontology in overcoming loneliness in the elderly is to increase health service activities, both primary and secondary, such as monitoring blood pressure, providing consultations and routine examinations for the elderly related to hypertension and being able to control the dietary intake of hypertensive foods in the elderly.
Originality/value
Elderly in nursing homes experience hypertension due to poor self-care management problems, which will have an impact on worsening quality of life conditions.
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Suhas M. Avabruth, Siva Nathan and Palanisamy Saravanan
The purpose of this paper is to examine the relationship between accounting conservatism and pledging of shares by controlling shareholders of a firm to obtain a loan. The…
Abstract
Purpose
The purpose of this paper is to examine the relationship between accounting conservatism and pledging of shares by controlling shareholders of a firm to obtain a loan. The pledging of shares by the controlling shareholders of a firm results in alterations to the payoff and risk structure for these shareholders. Since accounting numbers have valuation implications, pledging of shares by a controlling shareholder has an impact on accounting policy choices made by the firm. The purpose of this paper is to examine the impact of controlling shareholder share pledging to obtain a loan on a specific accounting policy choice, namely, conservatism.
Design/methodology/approach
The paper uses a large data set from India comprising 14,786 firm years consisting of 1,570 firms belonging to 58 industries for a period of 11 years (2009–2019). The authors use ordinary least square regression with robust standard errors. The authors conduct robustness checks and the results are consistent across alternative statistical methodologies and alternative measures of the primary dependent and independent variables.
Findings
The primary results show that pledging of shares by the controlling shareholders results in higher conditional conservatism and lower unconditional conservatism. Further analysis reveals that the relationship is stronger when the controlling shareholder holds a majority ownership in the firm. Additionally, the results show that for business group affiliated firms, which are unique to developing countries, both the conditional and the unconditional conservatism are incrementally lower when the controlling shareholder pledges the shares. For family firms with a family member as CEO, the conditional conservatism is incrementally higher and the unconditional conservatism is incrementally lower. Finally, the authors show that the results hold when the pledge intensity variable is measured with a one-year lag and finally, the authors show that conditional conservatism is incrementally higher in the year of the increase in the pledge and the year after, but there is no such incremental impact on unconditional conservatism.
Research limitations/implications
The research is limited to the listed firms in India. Since majority of the listed firms are controlled by families and the family firms around the world are heterogeneous the findings of the research may not be applicable to other countries.
Practical implications
The study has implications for policy-making and monitoring of the pledging by the controlling shareholders. It also helps the investors in making investment decisions with respect to family firms in India.
Originality/value
The study is unique as it focuses on the relationship between pledging of shares by the controlling shareholders and its impact on accounting conservatism. To the best of the authors’ knowledge, this is the first research integrating these two aspects.
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Dalia Birani-Nasraldin, Ronit Bogler and Anit Somech
Relying on the principles of the social exchange theory, the current study is aimed at investigating the impact of team-member exchange relationships (TMX) among school management…
Abstract
Purpose
Relying on the principles of the social exchange theory, the current study is aimed at investigating the impact of team-member exchange relationships (TMX) among school management team (SMT) members on school outcomes (organizational citizenship behavior [OCB], job satisfaction and innovation) via the mediating role of leader-member exchange (LMX) relationships between principals and SMTs.
Design/methodology/approach
Data were collected from multiple sources in 86 elementary and junior high schools to avoid one-source bias: 86 principals, 357 SMT members and 683 schoolteachers who were not members of the management teams.
Findings
The results revealed a positive relationship between TMX and teachers' job satisfaction and OCB, but no significant link between TMX and innovation. LMX partially mediated the relationship between TMX and OCB and between TMX and teachers' job satisfaction. Full mediation was found in TMX-innovation relationship.
Practical implications
The findings carry a message for school principals and policymakers regarding the importance of developing and maintaining high-quality horizontal and vertical exchange relationships among the SMT members for their positive influence on school outcomes.
Originality/value
To the best of the authors' knowledge, this is the first study to examine the link between TMX and LMX as a team phenomenon, and specifically in the educational setting. The finding that there is a positive link between the two constructs may imply that SMTs contribute to school success not only directly by exhibiting high-quality TMX but also indirectly through the high-quality LMX.
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Hailu Getnet, Aron O’Cass, Vida Siahtiri and Hormoz Ahmadi
This study aims to investigate the role of team problem-solving creativity in new product development (NPD) in the bottom-of-the-pyramid (BoP) in business-to-business firms. This…
Abstract
Purpose
This study aims to investigate the role of team problem-solving creativity in new product development (NPD) in the bottom-of-the-pyramid (BoP) in business-to-business firms. This study synthesizes perspectives from NPD, creativity and leadership to examine how work-related factors such as NPD managers’ role ambiguity and individual-related factors such as CEO’s ambidextrous leadership style interact to determine team problem-solving creativity and its effect on new product performance (NPP).
Design/methodology/approach
The hypotheses are tested using data from a multi-informant survey of 274 middle-level managers within 137 local BoP manufacturing firms in a sub-Saharan African country.
Findings
The results show that an NPD team’s ability to solve problems creatively determines NPP in BoP markets. The findings also show that NPD managers’ role ambiguity has a negative effect on team problem-solving creativity. However, a CEO’s ambidextrous leadership neutralizes the negative impact of role ambiguity on problem-solving creativity.
Originality/value
This study combines three distinct streams of literature, including NPD, creativity and leadership, to explore the antecedents and outcomes of problem-solving creativity. Drawing on creativity and leadership theories, this study reports that the success of creative idea exchanges depends heavily on a supportive environment for NPD team members and minimizing the NPD manager’s role ambiguity.
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