bluuebunny/crossref_metadata_2025_split huggingface dataset:
Model predictive control using LPV approach for trajectory tracking of quadrotor UAV with external disturbances
Authors: Singh Brajesh Kumar , Kumar Awadhesh 
Published: October 2022

Purpose
The rotorcraft technology is very interesting area since last few decades due to variety of applications. One of the rotorcrafts is the quadrotor unmanned aerial vehicle (QUAV), which contains four rotors mounted on an airframe with an onboard controller. The QUAV is a highly nonlinear system and underactuated. Its controller design is very challenging task, and the need of controller is to make it autonomous based on mission planning. The purpose of this study is to design a controller for quadrotor UAV for attitude stabilization and trajectory tracking problem in presence of external environmental disturbances such as wind gust.

Design/methodology/approach
To address this problem, the model predictive control has been designed for attitude control and feedback linearization control for the position control using the linear parameter varying (LPV) approach. The trajectory tracking problem has been addressed using the circular trajectory and helical trajectory.

Findings
The simulation results show the efficient performance with good trajectory tracking even in presence of external disturbances in both the scenarios considered, one for circular trajectory tracking and other for helical trajectory tracking.

Originality/value
The novelty of the work came from using the LPV approach in controller design, which increases the robustness of the controller in presence of external disturbances.
Including sustainability factors in the derivation of eater profiles of young adults in Canada
Authors: Mollaei Sadaf , Minaker Leia M. , Robinson Derek T. , Lynes Jennifer K. , Dias Goretty M. 
Published: October 2022

PurposeThe purpose of this research is to (1) identify factors affecting food choices of young adults in Canada based on environmental perceptions, personal and behavioral factors as determinants of eating behaviors; (2) segment Canadian young adults based on the importance of the identified factors in their food choices.Design/methodology/approachAn online survey was administered to Canadians aged between 18 and 24 to collect data on socio-demographic factors and eating behaviors (N = 297). An exploratory factor analysis (EFA) was used to identify the main factors affecting eating behaviors in young adults, followed by K-means clustering to categorize the respondents into consumer segments based on their propensity to agree with the factors.FindingsSix factors were extracted: beliefs (ethical, environmental and personal); familiarity and convenience; joy and experience; food influencers and sociability; cultural identity; and body image. Using these factors, six consumer segments were identified, whereby members of each segment have more similar scores on each factor than members of other segments. The six consumer segments were: “conventional”; “concerned”; “indifferent”; “non-trend follower”; “tradition-follower”; and “eat what you love”.Originality/valueIdentifying major factors influencing eating behaviors and consumer segmentation provides insights on how eating behaviors might be shaped. Furthermore, the outcomes of this study are important for designing effective interventions for shaping eating behaviors particularly improving sustainable eating habits.
Does organisational politics always hurt employee performance? Moderating–mediating model
Authors: Turek Dariusz 
Published: October 2022

PurposeDrawing on the job demands-resources theory, this study investigates the mediating role of job satisfaction and the moderating roles of abusive supervision and perceived organisational support (POS) in the relationship between perception of organisational politics (POP) and employee job performance. This study hypothesised that employees with high POS and low abusive supervision can function effectively even in organisations with a high level of organisational politics.Design/methodology/approachThe study was conducted anonymously on 408 employees, from companies operating in Poland which were completed using the computer-assisted telephone interview method. Statistical verifications of the moderation and mediation analyses were conducted with PROCESS macro.FindingsThe results showed that a high level of POP does not diminish employee performance when employees perceive low levels of abusive supervision and a high level of POS. Furthermore, the results revealed that job satisfaction mediates between POP and employee performance.Originality/valueThis study integrated research on politics, abusive supervision and POS to examine the collective impact of these variables on employee performance. The findings have important implications in terms of the potential buffering that can be applied to reduce the negative impacts resulting from POP.
Optimization and control strategy of electric vehicles access to power grid
Authors: Yin Wanjun , Qin Xuan 
Published: October 2022

Purpose
This paper aims to reduce the impact of disordered charging of large-scale electric vehicles (EVs) on the grid. EV is great significance for environmental protection, energy conservation and emission reduction to replace fuel vehicles with EVs. However, as a kind of random mobile load, large-scale integration into the power grid may lead to power quality problems such as line overload, line loss increase and voltage reduction. This paper realizes the orderly charging of electric vehicles and the safe operation of the distribution network by optimizing the dispatching scheme.

Design/methodology/approach
This paper takes the typical IEEE-33 node distribution system as the research object, adopts the improved particle swarm optimization algorithm and takes the minimum operation cost, the minimum environmental pollution, the minimum standard deviation of daily load, the minimum peak valley difference of load, the minimum node voltage offset rate and the minimum system grid loss rate as the optimization objectives.

Findings
Controlling the disordered charging of large-scale electric vehicles by optimizing the dispatching algorithm can realize the full consumption of renewable energy and the safe operation of the power grid.

Originality/value
Results show that the proposed scheme can realize the transfer of charging load in time and space, so as to stabilize the load fluctuation of distribution grid, improve the operation quality of power grid, reduce the charging cost of users and achieve the expected research objectives.
Influence of subcontractors' “strategic capabilities” on “power”, “dependence” and “collaboration”: an empirical analysis in the context of procurement decisions
Authors: Deep Shumank , Gajendran Thayaparan , Jefferies Marcus , Uggina Venkata Suresh , Patil Sanjay 
Published: October 2022

PurposeResearch on strategic procurement was mostly focussed on the clients' and main contractors' perspectives, while limited work had been done from a subcontractor's perspective. The paper hypothesises that “strategic capability” influences the latent constructs of power, dependence and collaboration in the main contractor–subcontractor relationship. Therefore, the purpose of this study is to investigate the influence of a subcontractor's strategic capabilities on power, dependence and collaboration.Design/methodology/approachA survey questionnaire was developed and distributed amongst the subcontractors in Australia, and 212 complete responses were received. Then second order confirmatory factor analysis and partial least square structure equation modelling (PLS-SEM) analysis were performed to test the hypothesised relationships.FindingsThe findings support “strategic capabilities” as a construct expressive of a subcontractor's unique market position and good business reputation. The findings also suggest that strategically capable subcontractors enhance their potential for forming partnerships with main contractors through dependence (StratC. → Dep.,β = 0.84; Effect Size (ES) = 0.713;p < 0.01), collaboration (StratC. → Collab.,β = 0.84; ES = 0.697;p < 0.01) and bargaining power (StratC. → Pow.,β = 0.83; ES = 0.672;p < 0.01).Originality/valueThe study is one of its kind to explore the impact of a subcontractor's strategic capability on their bargaining power, dependability and ability to form collaborations. Furthermore, results indicate that the “strategic capabilities” of subcontractors can strongly influence their ability to create “dependence”, foster “collaboration” and exert “power” over a main contractor. The findings can help improve the strategic procurement decision-making processes of both subcontractors and main contractors to build better business relationships.
Developing and validating protean and boundaryless career scale for college passing out students
Authors: Purohit Divyang , Jayswal Rachita 
Published: October 2022

Purpose
With changing employment conditions, technological advancement, frequent manpower reduction and global competition, the relevance of the protean and boundaryless career concepts is increasing. With this, the country’s culture plays a pivotal role in career choice. The purpose of this paper is to develop and validate protean and boundaryless career scales for college passing out students and in the Indian context. The protean career scale was measured by self-directed and values-driven dimensions, while the boundaryless career scale was measured by boundaryless mindset and organizational mobility preference.

Design/methodology/approach
The first step involved defining construct and determining face validity. The data collected via questionnaire from India’s final year engineering students were subjected to exploratory factor analysis and confirmatory factor analysis in the second and third steps, respectively. Finally, the nomological validity was tested by establishing the relationship between factors influencing career choice and newly developed protean and boundaryless career.

Findings
The result suggested using a two-factor model with a protean career (combining self-directed and values-driven items) and a boundaryless career as a separate construct for college passing out students.

Research limitations/implications
The developed scale has nine items that can be used to conduct surveys at the time of campus hiring by academic scholars, HR managers, and practitioners who are working on the identification, development and management of human talent as a part of any human resource management system.

Originality/value
To the best of the authors’ knowledge, this is the first approach to developing the protean and boundaryless career scale for college passing out students and in the Indian context which can be replicable for South Asian countries.
Outcomes of servant leadership among flight attendants: test of parallel and serial multiple mediating effects
Authors: Kim Taegoo Terry , Karatepe Osman M. 
Published: October 2022

Purpose
This paper aims to examine the parallel and serial multiple mediating effects of job insecurity (JIS) and occupational self-efficacy (OSE) in the association between servant leadership and work engagement (WENG).

Design/methodology/approach
Data collected from 296 flight attendants in Korea were tapped to assess the study hypotheses. The linkages were tested via structural equation modeling. The phantom variable was used to estimate the parallel and serial indirect impacts of JIS and OSE.

Findings
Servant leadership fosters OSE and WENG, while it alleviates JIS. Both JIS and OSE parallelly mediate the effect of servant leadership on WENG. Contrary to what has been hypothesized, the findings lend no credence to the serial multiple mediating impact.

Practical implications
Management should pay utmost attention to the promotion of employees to supervisory positions based on “stringent selection and hiring of people.” Flight attendants high on WENG should have job security. This is important because such employees exhibit good performance at work. Management should also organize training programs that would enhance flight attendants’ OSE.

Originality/value
This paper contributes to the relevant knowledge base by relating servant leadership to flight attendants’ WENG through JIS and OSE. Because of the number of rising disengaged service workers across the globe, this study also gauges the factors influencing flight attendants’ WENG and reports whether servant leadership, JIS and OSE influence their WENG at the same time. Unlike the preponderance of the empirical pieces, this study contributes to the literature by assessing the indirect effect of servant leadership on WENG via JIS and OSE as the parallel and serial multiple mediators using the phantom variable.
Connecting EFL curriculum reforms with teacher and student learning: insights from two lesson studies
Authors: Zhang Yumei , Luo Shaoqian 
Published: October 2022

PurposeCombining empirical insights from two lesson studies (LSs), this research aims to investigate EnEFL (English as a foreign language) teachers’ development in understanding and practical skills regarding the recent national English curriculum reform in China. It also strives to incorporate students’ performance and perceptions in the evaluation of the effectiveness of these LSs and teachers’ development.Design/methodology/approachTwo LSs were conducted in the same school with 3 years in between. Standardized procedures were followed in the two LSs, including pre-LS interviews, talk-lesson session, rehearsal lessons, and one public lesson. Triangulated data were collected from lesson plans, reflective journals, discussion notes, and interviews to probe into teachers’ learning and development. Students’ task performance and perceptions were analyzed to help reexamine the influence of teachers’ development on student learning.FindingsThe teachers in the two LSs encountered similar problems in both understanding and implementing the curriculum reform. The LSs helped them reach a contextualized understanding of the key concepts. Besides, developments were also seen in their instructional skills to adopt innovative methods and activities. The students’ task performance and perceptions endorsed the teachers’ efforts.Originality/valueFirst, this research combines data from two standardized LSs at different periods of curriculum implementation in the Chinese EFL context, which provides insights into teachers’ difficulties and development regarding curriculum reforms on a longer timeline. Second, students’ performance and perceptions are included as important data sources to assess the effectiveness of the LSs and teachers’ development.
Making RealDolls regulation at the border work
Authors: Yi Jisoo , Lee Jun Hee 
Published: October 2022

PurposeIn an effort to reduce ambiguity around customs clearance of items deemed pernicious to public morality and present lessons for customs administration, this research aims to explore ways to improve customs clearance for RealDolls. Furthermore, by suggesting specific ideas to improve the process, this research also aims to contribute to the future customs clearance of socially controversial and legally ambiguous items.Design/methodology/approachThe authors have decided to review studies from ethical and legal perspectives to focus on the legislation and its enforcement issues. The literature review is designed to provide insights on how to incorporate legal and ethical reasoning in the customs clearance process for RealDolls. Supplementary interviews were also conducted with criminal lawyers and customs officials to obtain expert knowledge on domestic legislation and customs control against the sex toys industry.FindingsAs a result of the study, it is found that a complete ban on RealDoll infringes on individuals' right to pursue happiness guaranteed by the Constitution and in most cases, cannot be implemented without loopholes. Therefore, it is suggested that the import regulation on RealDolls should be changed to the negative list system, which selectively disapproves certain RealDolls based on a list of RealDolls previously denied clearance by either the Supreme Court or the Customs Clearance Screening Committee. In addition, to have sufficient ethical and legal grounds, it is necessary to expand research on RealDolls regulation and actively introduce the process of obtaining social consensus.Originality/valueThere has been little discussion on regulating RealDolls on the customs clearance level; no specific criterion exists except the public morality clause. This study is vital in that it reviews issues of RealDolls customs clearance from legal and ethical perspectives. Doing so also has a practical significance of providing implications for the customs policies regarding items deemed pernicious to public morality.
Does financial development has (a)symmetric effect on environmental quality: insights from South Africa
Authors: Dada James Temitope , Ojeyinka Titus Ayobami , Al-Faryan Mamdouh Abdulaziz Saleh 
Published: October 2022

PurposeThis paper investigates the (a)symmetric effects of financial development in the presence of economic growth, energy consumption, urbanization and foreign direct investment on environmental quality of South Africa between 1980 and 2017.Design/methodology/approachA robust measure of financial development is generated using banking institutions and non-banking institutions market-based financial development indicators, while environmental quality is measured using carbon footprint, non-carbon footprint and ecological footprint. The objectives of the study are captured using linear and non-linear autoregressive distributed lag.FindingsThe result from the symmetric analysis suggests that financial development stimulates carbon footprint and ecological footprint in the short run; however, financial development abates non-carbon footprint. In the long run, financial development has a significant negative effect on carbon footprint and ecological footprint. However, the asymmetric analysis established strong asymmetric effect in the short run, while no asymmetric effect is found in the long run. The short run asymmetric analysis reveals that positive shock in financial development increases carbon footprint and ecological footprint; however, positive changes in financial development reduce non-carbon footprint. Negative shocks in financial development, on the other hand, have a positive impact carbon footprint, non-carbon footprint and ecological footprint.Practical implicationsThe study's outcome implies that the concept of “more finance, more growth” could also be applied to “more finance, better environment” in South Africa. The study offers vital policy suggestions for the realization of sustainable development in South Africa.Originality/valueThis empiric adds to the body of knowledge on the influence of financial development on various components of environmental quality (carbon footprint, non-carbon footprint and ecological footprint) in South Africa.
What can I do for you? Line managers’ behaviors to support return to work for workers with common mental disorders
Authors: Nielsen Karina , Yarker Jo 
Published: October 2022

Purpose Sustainable return to work remains challenging for workers returning after long-term sick leave due to common mental disorders (CMDs): stress, anxiety and depression. Line managers play a significant role in supporting returned workers. Therefore, the purpose of this qualitative study was to examine the supportive behaviors of line managers in supporting returned workers.Design/methodology/approach The authors conducted a longitudinal study with up to three semi-structured interviews with 20 line managers with experience managing returned workers. In these interviews, the authors asked questions about the supportive behaviors line managers enacted to support workers and the role of the context. The authors conducted reflexive thematic analysis.Findings The analyses revealed five key strategies, including managing workload, flexible working time arrangements, location of work, mental health check-ups and long-term support. The interviewed line managers reported their own lived experiences and that being aware of the limitations of their role, together with training and support from senior management and human resources (HR), enabled them to provide appropriate support.Practical implications The five strategies and the barriers and facilitators to implementing these may enable HR to develop policies and procedures to support line managers, including training of line managers.Originality/value This is the first study in the UK on line managers’ behaviors to support workers who have returned to work after a period of long-term sickness absence due to CMDs. The identification of such behaviors is paramount to developing organizational policies and practices. The question, however, remains whether employees see these behaviors as effective.
Becoming immortal: future wellness and medical tourism markets
Authors: Wright Daniel William Mackenzie , Zascerinska Santa 
Published: October 2022

PurposeIs humanity heading to immortal living? If so, what areas of society are playing an active role in achieving this? In order to understand this, the study explores the relationship between immortality and the wellness and medical tourism industry to seek potential relationships between them and ultimately, asks difficult questions about the growth of these tourism sectors and the potential need for greater regulation of them.Design/methodology/approachTaking a pragmatic philosophical approach and through the examination of refined information from secondary sources and published material and reports, the study presents original theoretical knowledge and a model exploring tourism and human immortality.FindingsThis paper argues that continued growth in the wellness and medical markets today could lead to a world where transhumanists and cyborgs are present in our world, even taking over from Homo sapiens. The study presents a model highlighting the potential role of wellness and medical tourism markets, illustrating the potential for future consumer services that could further fuel the search for immortality. Thus, how such markets and consumer desires are (in)directly supporting humanities desire for (non-human) immortal existence.Originality/valueToday, individuals are driven by wellness practices and medical and cosmetic desires and are willing to travel the globe in search of companies who are either capable of carrying out the desired procedures or seeking prices more affordable to them. This research offers novel insights into these complex relationships and maps the affiliation between wellness and medical practices and the concept of immortality.