Liwei Xu, Guodong Yin, Guangmin Li, Athar Hanif and Chentong Bian
The purpose of this paper is to investigate problems in performing stable lane changes and to find a solution to reduce energy consumption of autonomous electric vehicles.
Abstract
Purpose
The purpose of this paper is to investigate problems in performing stable lane changes and to find a solution to reduce energy consumption of autonomous electric vehicles.
Design/methodology/approach
An optimization algorithm, model predictive control (MPC) and Karush–Kuhn–Tucker (KKT) conditions are adopted to resolve the problems of obtaining optimal lane time, tracking dynamic reference and energy-efficient allocation. In this paper, the dynamic constraints of vehicles during lane change are first established based on the longitudinal and lateral force coupling characteristics and the nominal reference trajectory. Then, by optimizing the lane change time, the yaw rate and lateral acceleration that connect with the lane change time are limed. Furthermore, to assure the dynamic properties of autonomous vehicles, the real system inputs under the restraints are obtained by using the MPC method. Based on the gained inputs and the efficient map of brushless direct-current in-wheel motors (BLDC IWMs), the nonlinear cost function which combines vehicle dynamic and energy consumption is given and the KKT-based method is adopted.
Findings
The effectiveness of the proposed control system is verified by numerical simulations. Consequently, the proposed control system can successfully achieve stable trajectory planning, which means that the yaw rate and longitudinal and lateral acceleration of vehicle are within stability boundaries, which accomplishes accurate tracking control and decreases obvious energy consumption.
Originality/value
This paper proposes a solution to simultaneously satisfy stable lane change maneuvering and reduction of energy consumption for autonomous electric vehicles. Different from previous path planning researches in which only the geometric constraints are involved, this paper considers vehicle dynamics, and stability boundaries are established in path planning to ensure the feasibility of the generated reference path.
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Muhammad Asim, Zhiying Liu, Muhammad Athar Nadeem, Usman Ghani, Junaid Khalid and Yi Xu
This study, based on the conservation of resource theory, aims to investigate the negative impacts of abusive supervision on helping behaviors among employees by examining the…
Abstract
Purpose
This study, based on the conservation of resource theory, aims to investigate the negative impacts of abusive supervision on helping behaviors among employees by examining the mediating role of rumination and the moderating role of psychological flexibility.
Design/methodology/approach
A total sample of 282 reliable questionnaires are collected from 282 employees working in education and banking sectors of Pakistan. SPSS and AMOS are used for data analysis of the proposed model.
Findings
The findings reveal that rumination mediates the relationship between abusive supervision and employees’ helping behavior. In addition, the results show that higher levels of psychological flexibility negatively moderate the relationship between abusive supervision and employees’ helping behaviors through mediation.
Practical implications
This study elucidates how and when abusive supervision deters helping behavior among employees and provides useful guidelines for banking/university’s administration to understand harmful consequences of abusive supervision and take appropriate policy measures to lessen their harmful effects upon employees.
Originality/value
By proposing a moderated mediation model, this study discovers rumination as a key mediator that links abusive supervision to employees’ helping behaviors and identifies the role of psychological flexibility in diminishing the negative impacts of abusive supervision upon employees’ helping behaviors through rumination.
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Pakistan's present war against extremists has many folds and sheds. The country's initial participation in the Afghan War in 1979 later gave birth to different extremist trends in…
Abstract
Pakistan's present war against extremists has many folds and sheds. The country's initial participation in the Afghan War in 1979 later gave birth to different extremist trends in the country. State patronage of the extremist Wahabi Islamists during the Afghan jihad opened another conflict in Pakistan, and things became more complicated. The combination of external and internal factors gave birth to the worst kind of conflict, which now has not only become dangerous for the country's own existence but also a major threat for global peace. The Afghan jihad initially started as a war against Soviet occupation and later became the hub of global jihad-war against infidels.
This chapter analyzes how external factors promoted internal contradictions in Pakistan due to which the country became not only an exporter of jihadis for the world but also the worst kind of sectarian conflicts, including. Shia–Sunni, Deobandi–Wahabi clashes, entered into in the past two decades. Such a strong link exists with Pakistan's official support to global jihad. Draft sectarian groups now head to head with their opponents have killed thousands of members of rival sectors, have strong support from external sympathizers, and have spread in the country. The well planned terrorist activities of these groups reflect the fact that support to these groups in the past is now leading to a severe crisis in Pakistan. The nexuses of these indigenous extremists like Lashkar-e-Jhangvi, Lashkar-e-Taiba, Tehrik-e-Taliban Pakistan, and Hizb-ul-Mujahideen with external terrorist organizations like Al-Qaeda, the Taliban, and Islamic Movement of Uzbekistan of Tahir Yuldasher Chechen Guerilla War has led to several bloody clashes in the country and outside.
Chang-Hua Yen, Tien-Cheng Han and Yi-Shih Wen
Among different leadership styles, scant hospitality researchers have studied the link between authentic leadership and organizational citizenship behaviors (OCBs). This article…
Abstract
Purpose
Among different leadership styles, scant hospitality researchers have studied the link between authentic leadership and organizational citizenship behaviors (OCBs). This article examined the associations among authentic leadership, job passion, and OCBs and examined the mediation effect of job passion.
Design/methodology/approach
Questionnaires were distributed to 314 Taiwan's hotel employees. Structural equation modeling was performed to examine the hypotheses of this study.
Findings
The results indicated that authentic leadership positively affects harmonious and obsessive passion and that harmonious passion positively affects OCBs directed to individuals (OCBI) and OCBs directed to the organization (OCBO), whereas obsessive passion positively affects OCBI. Furthermore, harmonious passion mediates the linkage between authentic leadership and OCBs (both OCBI and OCBO), whereas obsessive passion only mediates the linkage between authentic leadership and OCBI.
Practical implications
Training programs for hotel managers should incorporate courses on authentic leadership to strengthen managers' skills. Succession plans for managers should prioritize the promotion and retention of candidates with authentic leadership traits. Furthermore, managers should use authentic leadership to create a transparent employee incentive system and career development plans, thereby creating a workplace with fair rewards and opportunities for promotion.
Originality/value
The major contribution is that it expands the knowledge of hospitality leadership and determines the linkages among authentic leadership, job passion, and OCBs. Furthermore, job passion was revealed as a mediator in the authentic leadership–OCB association.
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Taraneh Foroutan, Mona Bouzari and Homayoun Pasha Safavi
This paper aims to develop a research model that investigates the probable antecedents and outcomes of psychological capital (PSY-capital). More specifically, high-quality…
Abstract
Purpose
This paper aims to develop a research model that investigates the probable antecedents and outcomes of psychological capital (PSY-capital). More specifically, high-quality relationships (HQRs) and psychological safety (PSY-safety) are tested as the antecedents and organizational deviant behaviors (ODBs) is tested as the outcome.
Design/methodology/approach
Data was gathered from the restaurant staff and their direct supervisors through a 10-day time-lag design in two different rounds. Structural equation modeling was used to evaluate the direct and mediation.
Findings
Drawing upon social identity theory (SIT), the findings reveal that PSY-safety functions as a mediator of the effect of HQRs on PSY-capital. Additionally, the results proved that PSY-capital mediates the relationship between PSY-safety and ODBs.
Practical implications
Considering the results, restaurant managers should pay ample attention to and make every effort to develop HQRs among organizational members. Through this, manager paves the way for PSY-safety which causes employees to develop PSY-capital and eventually display less deviance. Additionally, the authors recommend that company managers serve as role models for their staff, sharing information with and respecting them to create an environment of mutual trust, similar goals and knowledge sharing.
Originality/value
This research contributes significantly to the existing hospitality literature (specifically foodservice) by testing the mechanism through which HQRs lead to PSY-capital and the mediation effect of PSY-capital in the relationship between PSY-safety and ODBs.
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Xinfeng Ye, Shaohan Cai and Zhining Wang
Prior research has suggested that abusive supervision has negative impacts on various work outcomes. However, little attention has been paid to the relationship between abusive…
Abstract
Purpose
Prior research has suggested that abusive supervision has negative impacts on various work outcomes. However, little attention has been paid to the relationship between abusive supervision and employees’ safety behaviour. The purpose of this study is, therefore, to address these limitations by developing and testing a theoretically based conceptual model that explicitly considers the underlying mechanism and boundary condition of the relationship between abusive supervision and safety behaviour of underground coal miners in China.
Design/methodology/approach
At Time 1, the authors conducted a survey of 630 employees to assess their supervisors’ abusive leadership behaviours, their own power distance beliefs and their self-reflection. At Time 2, the authros sent questionnaires to the leaders and invited them to evaluate employees’ safety behaviour in the workplace. After cleaning the survey data, the authors tested our model using a multi-level analysis on a sample (n = 458) of underground miners across 96 coal mining sites in China.
Findings
The authors propose that abusive supervision decreases employees’ safety compliance/participation by reducing reflection but strengthening rumination. The authors further find that the linkage from abusive supervision to reflection/rumination to safety compliance/participation is affected by power distance.
Originality/value
To the best of the authors’ knowledge, This is one of the first empirical studies to investigate the mediating effects of a deep cognitive processing variable – namely, self-reflection – and the moderating effects of power distance on the relationship between abusive supervision and safety behaviour.
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Syamsidah Syamsidah, Hillman Wirawan and Rudi Salam
This study aims to investigate the effect of abusive supervision on employees’ creativity through the mediating role of job insecurity and the moderating role of subordinate…
Abstract
Purpose
This study aims to investigate the effect of abusive supervision on employees’ creativity through the mediating role of job insecurity and the moderating role of subordinate gender in Indonesia.
Design/methodology/approach
Data were collected from various sources using online recruitment methods. The abusive supervision scale, job insecurity scale and employee creativity scale were the three measures in this study. Participants completed a three-wave data collection procedure using an online survey platform. After removing participants with incomplete and careless responses, the final data set contained 515 usable responses.
Findings
The results suggested that the negative effect of abusive supervision on employees’ creativity was mediated by job insecurity, and employees’ gender moderated this adverse effect. Gender roles shaped how employees respond to their leader’s hostile behaviours. In Indonesia, abusive supervision increased employees’ job insecurity and consequently reduced their creativity. However, the damage was more profound for the male employees than the female employees.
Practical implications
Gender role theory and perspectives are essential in explaining leader–employee interactions and must be included in leadership strategies. Also, support and resources must be provided equally for both male and female employees. However, more attention must be given to male employees to ensure their security working in organisations. Finally, some interventions are necessary to mitigate the effect of abusive supervision.
Originality/value
This study offers insight into how male and female employees, in a traditional gender role culture like Indonesia, respond to their leader’s abusive behaviours.
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Sanjeev Singh, Damodar Sahu, Ashish Agrawal and Meeta Dhaval Vashi
A qualitative study can help in understanding the unpolluted perspectives of key stakeholders involved in the vaccination practices and can explore vital factors that could…
Abstract
Purpose
A qualitative study can help in understanding the unpolluted perspectives of key stakeholders involved in the vaccination practices and can explore vital factors that could influence vaccination-related behaviors and their utilization. This study aims to document the perceptions of caretakers, community members and healthcare service providers related to childhood vaccination practices in slums under the national immunization program (NIP) of India.
Design/methodology/approach
This was a qualitative community-based cross-sectional study. Focus group discussions with caretakers, community members and healthcare service providers were used to build a holistic, detailed description and analysis of the factors associated with childhood vaccination practices within its real-world context.
Findings
Lack of awareness, fear of adverse events following immunization, inappropriate timing of vaccination sessions, loss of daily earnings, migration, lack of good behavior of health staffs, shortage of logistics and vaccines, limited resources and infrastructures and high expectations of beneficiaries were some of the vital barriers impacting vaccination practices in slums.
Research limitations/implications
Though this study provides significant good information on the indicators that can be considered to improve the vaccination practices in any slum settings, it has is also a limitations too due to its setting. Therefore, one needs to be cautious while generalizing these results to other settings like rural. In addition, Though we believe that these strategies could be useful in any setting, it is also important to tailor these observations them as per the need of the society and the population. Also, this is a self-reported qualitative study and therefore the perspectives reported in this study need to be taken with caution. Further, low vaccination, poor awareness, compromised healthcare services, high expectations could be considered as a stigma/fear among the responders and therefore there is always a chance of underreporting. Thus, it would be important in future to conduct a study involving a broader group of people in society and to establish factors associated with the vaccination coverage. that can help in improvement of vaccination.
Originality/value
Initiatives such as regular interactions at different levels, effective communication including reminders, behavior interventions, the continued supply of vaccines and logistics, additional resources for the vaccination program, incentives and recognition, extended sessions and people-friendly healthcare delivery system could be helpful to strengthen the routine vaccination practices in slums.
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Muhamad Firdaus Ab Rahman, Hussein ‘Azeemi Abdullah Thaidi, Farhana Mohamad Suhaimi and Siti Farahiyah Ab Rahim
This study aims to propose a temporary waqf model for family waqf by establishing its application parameters, which may facilitate the management of family waqf in Malaysia and…
Abstract
Purpose
This study aims to propose a temporary waqf model for family waqf by establishing its application parameters, which may facilitate the management of family waqf in Malaysia and encourage new donors to establish waqf.
Design/methodology/approach
A qualitative methodology was employed to analyse the data through deductive and field research methods. For field research, this study conducted semi-structured interviews with the Waqf Corporations and Mufti's Department in the selected states within Malaysia.
Findings
Results drawn from the interview's findings are that creating family waqf in Malaysia is hindered by several obstacles, including family waqfs not serving the public interest but rather their descendants, and family waqfs have been practised in perpetuity. Besides, inefficient management of family waqf and a lack of an effective mechanism and parameter exists. Therefore, this study presented a conceptual framework for a temporary cash waqf model for family waqf along with the parameters that can be used to implement it. The temporary waqf is a strategy to develop waqf property and the interests of creators, beneficiaries and trustees. Temporary waqf merged into the family waqf yields benefits to the family waqf.
Research limitations/implications
Because of Malaysia's Waqf Regulation and Administration, this study was confined to selected states. This study has broadened the scope of temporary family waqf, including moveable, immovable property and cash waqf.
Practical implications
This study presented a temporary waqf model for family waqf as a realistic mechanism and criterion for its practical implementation in Malaysia.
Social implications
This study could encourage new donors to establish waqf.
Originality/value
This study’s novelty lies in its attempt to highlight the importance of the temporary waqf model as a practical mechanism with holistic principles for its implementation in Malaysia to benefit the donors, their families and trustees. In addition to family waqf, numerous temporary waqfs may be established, in which the income or usufruct is shared proportionally, such as charitable waqf (waqf khairi), private waqf (waqf khas) and joint waqf (waqf mushtarak).