bluuebunny/crossref_metadata_2025_split huggingface dataset:
An optoelectronic Coupler based on graphene patterns and SU-8 photoresist
Authors: Zandi Elham , Fouladian Majid , Mazloum Jalil 
Published: January 2024

Purpose
The purpose of this research is to efficiently separate incident terahertz (THz) waves into distinct transmission and reflection channels by minimizing the absorption ratio. So, the optical systems operating within the THz frequency range can developed. To achieve a multi-band response, four different periodic arrays of graphene patterns are used. These arrays are strategically stacked on both sides of three SU-8 photoresists, serving as dielectric materials. Consequently, each layer exhibits a unique influence on the device's response, and by applying four external bias voltages, the behavior of the device can be precisely controlled and adjusted.

Design/methodology/approach
A novel optoelectronic device operating in the THz frequency range is introduced, using periodic arrays of graphene patterns and SU-8 photoresist dielectrics. The design of this device is based on meta-surface principles, using both the equivalent circuit model (ECM) and transmission line concept. The output of the device is a THz coupler implemented by analyzing the reflection and transmission channels. The structure is characterized using the ECM and validated through comprehensive full-wave simulations. By representing the electromagnetic phenomenon with passive circuit elements, enabling the calculation of absorption, reflection and transmission through the application of the theory of maximum power transfer.

Findings
Based on simulation results and theoretical analysis, the proposed device exhibits sensitivity to gate biasing, enabling efficient reflection and transmission of THz waves. The device achieves reflection and transmission peaks exceeding across the five distinct THz bands 90%, and its behavior can be tuned by external gate biasing. Moreover, the device's sensitivity to variations in geometrical parameters and chemical potentials demonstrates its reliable performance. With its outstanding performance, this high-performance meta-surface emerges as an ideal candidate for fundamental building blocks in larger optical systems, including sensors and detectors, operating within the THz frequency band.

Originality/value
The proposed device covers a significant portion of the THz gap through the provision of five adjustable peaks for reflection and transmission channels. Additionally, the ECM and impedance matching concept offers a simplified and time-efficient approach to designing the meta-surface. Leveraging this approach, the proposed device is effectively represented using passive circuit elements such as inductors, capacitors and resistors, while its performance is validated through the utilization of the finite element method (FEM) as a full-wave simulation tool. This combination of circuit modeling and FEM simulation contributes to the robustness and accuracy of the device's performance evaluation.
Exploring the relationship between economic diversification and energy-related CO2 emissions in a petroleum-producing country
Authors: AlSabbagh Maha 
Published: January 2024

Purpose
This study aims to quantify sectoral energy and carbon intensity, revisit the validity of the Environmental Kuznets Curve (EKC) and explore the relationship between economic diversification and CO2 emissions in Bahrain.

Design/methodology/approach
Three stages were followed to understand the linkages between sectoral economic growth, energy consumption and CO2 emissions in Bahrain. Sectoral energy and carbon intensity were calculated, time series data trends were analyzed and two econometric models were built and analyzed using the autoregressive distributed lag method and time series data for the period 1980–2019.

Findings
The results of the analysis suggest that energy and carbon intensity in Bahrain’s industrial sector is higher than those of its services and agricultural sectors. The EKC was found to be invalid for Bahrain, where economic growth is still coupled with CO2 emissions. Whereas CO2 emissions have increased with growth in the manufacturing, and real estate subsectors, the emissions have decreased with growth in the hospitability, transportation and communications subsectors. These results indicate that economic diversification, specifically of the services sector, is aligned with Bahrain’s carbon neutrality target. However, less energy-intensive industries, such as recycling-based industries, are needed to counter the environmental impacts of economic growth.

Originality/value
The impacts of economic diversification on energy consumption and CO2 emissions in the Gulf Cooperation Council petroleum countries have rarely been explored. Findings from this study contribute to informing economic and environment-related policymaking in Bahrain.
Exploring the impact of rider–driver ethnicity match/mismatch in ride-hailing
Authors: Idug Yavuz , Gligor David , Porchia Jamie , Niranjan Suman , Manuj Ila , Nowicki David R. 
Published: January 2024

PurposeDrawing on the social identity theory, this paper explores the impact of rider–driver ethnicity match on the driver’s expected ride satisfaction and willingness to perform, and rider’s trust on the driver.Design/methodology/approachThe study relies on scenario-based online experiments with 291 ride-hailing drivers and 282 riders in the USA.FindingsThe findings indicate that ethnicity match between ride-hailing drivers and riders positively impact driver’s ride satisfaction and willingness to perform, and rider’s trust in the driver. The study also revealed a significant positive moderation effect of ethnic identity on the relationship of ethnicity match and those constructs.Practical implicationsWhile it may be challenging to influence an individual’s level of ethnic identity, managers can take steps to educate and train their employees regarding the impact of ethnic identity and discrimination, with a particular focus on those individuals who possess a strong sense of ethnic identity.Originality/valueThe findings of this research provide theoretical contributions to the existing literature on ride-hailing services and adds to the limited stream of logistics research that examines the impact of ethnicity on ride-hailing operations.
Determining factors of individual and organizational unlearning in the generation and realization of ideas: a multigroup analysis from organizational structure
Authors: Pardim Vanessa Itacaramby , Contreras Pinochet Luis Hernan , Viana Adriana Backx Noronha , Souza Cesar Alexandre de 
Published: January 2024

PurposeThis research sought to propose a theoretical model that analyzes the factors associated with unlearning (individual and organizational) and contributes to generating and realizing ideas among young people at the beginning of their careers based on the predominant type of structure.Design/methodology/approachThe study had a sample (n = 971) and used the multivariate data analysis partial least squares - Structural Equation Modeling (PLS-SEM regular) and multigroup analysis (PLS-MGA) to identify significant differences between the estimates of the specific parameters of each group (a- Organic/b- Mechanistic).FindingsAll the direct relationships and formulated mediations were found to be supported, except for H6 (ET→EO) within the group that had a primarily mechanistic organizational structure. Thus, the more turbulent the environmental, the more initiative-taking, innovative and risk-taking a company tends to be. However, it remains to be seen whether the organizational structure plays a role in facilitating or hindering this relationship. H1 (IG→IR) indicates that predominantly organic organizations have a stronger and more consistent relationship with the knowledge developed through individual and organizational unlearning process. This knowledge contributes to the idea-generation process and ultimately leads to realizing those ideas.Originality/valueThe article contributes to literature by proposing an original and integrated theoretical model incorporating individual and organizational approaches to unlearning to understand the effect on idea generation and realization.
Firm environmental disclosure and government’s sustainable leadership: an analysis of keywords in Chinese Government work reports
Authors: He Miao 
Published: January 2024

Purpose
This paper examines how firms respond to local government’s environment initiatives through textual analysis of government work reports (GWRs). This study aims to provide insights into how firms strategically respond to government’s environmental initiatives through their disclosure and investment practices.

Design/methodology/approach
This study uses a textual analysis of GWRs from China’s provinces. The frequency and change rate of environmental keywords in these reports are used as a measure of the government’s environmental initiatives.

Findings
This study finds that environmental disclosure scores in environmental, social and governance (ESG) reports increase with the frequency or change rate of environmental keywords in provincial GWRs. This effect is more pronounced for non-state-owned enterprises, firms in highly marketized provinces or those listed in a single capital market. However, there is no significant relationship between firms’ environmental investments and government initiatives, except for cross-listed firms in provinces with consistently high frequency of environmental keywords in their GWRs.

Practical implications
The findings indicate that government environmental initiatives can shape firms’ disclosure behaviors, yet have limited influence on investment decisions, suggesting that environmental disclosure could potentially be opportunistic. This underscores the need for more effective strategies to stimulate firms’ environmental investments.

Originality/value
This study provides valuable insights into the differential impacts of government environmental initiatives on firms’ disclosure and investment behaviors, contributing to the understanding of corporate environmental responsibility in the context of government initiatives.
Promoting university brand through student co-creation behaviors: the role of online brand posts
Authors: Vo Thanh-Thu , Le Quynh Hoa , Duong Linh N.K. 
Published: January 2024

PurposeThis study investigates the role of social media brand posts on customer response and whether said impacts foster engagement in brand co-creation behaviors, especially in the higher education sector. The study further explores the moderating role of a university's reputation in strengthening the effects on student response and co-creation behaviors.Design/methodology/approachThe authors conducted this research by using the dual processes of the heuristic–systematic model to understand the effects of brand post‐characteristics on student’s responses and behaviors. A dataset obtained from a survey of 755 students was employed to estimate the proposed research model.FindingsThe results illustrated two key characteristics of brand posts, namely argument quality (systematic processing) and quantity of posts (heuristic processing), positively affect cognitive and affective responses, thus encouraging students to co-create value for a university brand. Moreover, our study also found that university reputation plays a significant moderating role in strengthening the relationship between recipients’ responses and co-creation behavior.Originality/valueOnline brand posts not only enable institutions to exchange brand information but also allow students to contribute their own resources to co-create brand value. Thus, the study findings can help brand managers successfully implement co-branding efforts and foster students in the co-creation process.
Self-concept as related to emotional intelligence: a study of tribal and non-tribal students
Authors: Sultana Aklima , Islam Nasrin 
Published: January 2024

Purpose
Emotional intelligence (EI) and self-concept (SC) play a very important role in one’s life. The purpose of this paper is to investigate the SC and EI of tribal and nontribal university students.

Design/methodology/approach
The research used a quantitative approach, 100 nontribal (50 male and 50 female) and 100 tribal (50 male and 50 female) students were selected by nonprobability sampling method. The Bangla version of the self-concept questionnaire (Beck et al., 2001) and the emotional intelligence questionnaire (Hyde et al., 2002) were used to measure the SC and EI of students. Pearson correlation, t-test and post hoc tests were used for statistical analysis.

Findings
The findings of this study showed that the tribal and nontribal students differ significantly on the measure of SC and EI (p < 0.01). Although nontribal students showed higher SC than tribal students, tribal students showed a higher level of EI than nontribal students. The results also showed that gender significantly affects SC and EI (p < 0.01). Males have higher SC and EI than females. Furthermore, the study revealed that socioeconomic status differs significantly in the case of SC. Finally, the result also showed a significant positive correlation (r = 0.245, p < 0.01) between SC and EI.

Research limitations/implications
The results of the research are only based on the students of one university besides the sample size is limited.

Practical implications
This research allowed the authors to determine the practical implications. The findings suggest that there is a significant difference in SC and EI between tribal and nontribal students, with nontribal students showing higher levels of SC. This implies that interventions and programs aimed at enhancing SC may be particularly beneficial for tribal students. The study also reveals that there are significant differences in SC and EI between tribal and nontribal adolescent boys and girls. This highlights the importance of considering gender differences when designing interventions to improve SC and EI among tribal and nontribal students. Moreover, educators, parents and policymakers can use these findings to develop targeted interventions and strategies to enhance SC among tribal students, with the aim of improving their overall well-being, academic achievements and success in life.

Originality/value
This paper adds to the literature on the SC and EI of tribal and nontribal university students by describing the difference in levels and a significant correlation. This paper obtains an innovative statistical approach to develop the findings so that information can be used in the future.
Developing future competencies of people employed in non-standard forms of employment: employers’ and employees’ perspective
Authors: Piwowar-Sulej Katarzyna , Bąk-Grabowska Dominika 
Published: January 2024

PurposeThe aim of this study is to analyze the differences between non-standard forms of employment (FoE) (i.e. dependent self-employment/business-to-business/B2B contract and contract of mandate) in terms of investing in the development of future competencies by employees and employers. This study also examined additional factors which influence these investments.Design/methodology/approachTo collect data, the computer-assisted telephone interview technique was used. 200 employees from different companies located in Poland participated in this study, wherein each of the above-mentioned FoEs (i.e. dependent self-employment and contract of mandate) was represented by 100 people. The Chi-Square test and multivariate logistic regression analysis were used in the statistical analyses.FindingsIn the case of only 2 out of 14 competencies, there were statistically significant differences between the two groups of respondents: the employers financed training courses for B2B employees more frequently than for mandate contract workers. Moreover, in only one case there was a statistically significant difference: the self-employed financed training courses themselves more often than mandate contract workers. This study revealed an important impact of other variables such as respondents’ age, education level, parental status and industry on the training activities undertaken by employers and employees.Originality/valueAlthough the issue of developing future competencies is important, there is little research examining this problem in the context of people who work in non-standard FoE. Moreover, previous research primarily focused on identifying differences between people working under employment contracts and the self-employed. This article fills these research gaps as well as shows that more factors should be considered in the research models to get a deeper insight into the problem of non-standard FoEs.
The relationship between soft skills, stress and reduced audit quality practices
Authors: Samagaio Antonio , Morais Francisco Paulo , Felício Teresa 
Published: January 2024

Purpose
This study aims to identify the effect of soft skills as a driver of audit quality and their moderating role in the relationship between stress and the propensity for auditors to engage in reduced audit quality practices (RAQP).

Design/methodology/approach
This study uses a sample of 130 auditors, whose data were collected through an electronic questionnaire. The results were derived from the partial least squares-structural equation modelling method.

Findings
The findings show that the propensity to incur RAQP increases when auditors are under job stressors but decreases when individuals have resilience and time management skills. Moreover, the results suggest that the moderating effect of these two soft skills can effectively reduce the auditors’ propensity to engage in dysfunctional actions and judgments in auditing. Emotional intelligence and self-efficacy skills are shown not to affect RAQP.

Originality/value
This study adds to previous research on auditors’ drivers for supplying audit quality, by providing evidence of auditor characteristics as a critical input to audit quality. The results emphasize the importance of researchers including in models the moderating effect of soft skills on the relationship between audit quality and determinants associated with audit firms, clients or the regulatory framework.
How does population growth affect economic growth and vice versa? An empirical analysis
Authors: Brida Juan Gabriel , Alvarez Emiliano , Cayssials Gaston , Mednik Matias 
Published: January 2024

PurposeOur paper studies a central issue with a long history in economics: the relationship between population and economic growth. We analyze the joint dynamics of economic and demographic growth in 111 countries during the period 1960–2019.Design/methodology/approachUsing the concept of economic regime, the paper introduces the notion of distance between the dynamical paths of different countries. Then, a minimal spanning tree (MST) and a hierarchical tree (HT) are constructed to detect groups of countries sharing similar dynamic performance.FindingsThe methodology confirms the existence of three country clubs, each of which exhibits a different dynamic behavior pattern. The analysis also shows that the clusters clearly differ with respect to the evolution of other fundamental variables not previously considered [gross domestic product (GDP) per capita, human capital and life expectancy, among others].Practical implicationsOur results indirectly suggest the existence of dynamic interdependence in the trajectories of economic growth and population change between countries. It also provides evidence against single-model approaches to explain the interdependence between demographic change and economic growth.Originality/valueWe introduce a methodology that allows for a model-free topological and hierarchical description of the interplay between economic growth and population.
Non-transferring arc and wire additive manufacturing: microstructure, mechanical properties and bulk texture evolution of deposits
Authors: Pattanayak Suvranshu , Sahoo Susanta Kumar , Sahoo Ananda Kumar , Vinjamuri Raviteja , Dwivedi Pushpendra Kumar 
Published: January 2024

Purpose
This study aims to demonstrate a modified wire arc additive manufacturing (AM) named non-transferring arc and wire AM (NTA-WAM). Here, the build plate has no electrical arc attachment, and the system’s arc is ignited between tungsten electrode and filler wire.

Design/methodology/approach
The effect of various deposition conditions (welding voltage, travel speed and wire feed speed [WFS]) on bead characteristics is studied through response surface methodology (RSM). Under optimum deposition condition, a single-bead and thin-layered part is fabricated and subjected to microstructural, tensile testing and X-ray diffraction study. Moreover, bulk texture analysis has been carried out to illustrate the effect of thermal cycles and tensile-induced deformations on fibre texture evolutions.

Findings
RSM illustrates WFS as a crucial deposition parameter that suitably monitors bead width, height, penetration depth, dilution, contact angle and microhardness. The ferritic (acicular and polygonal) and lath bainitic microstructure is transformed into ferrite and pearlitic micrographs with increasing deposition layers. It is attributed to a reduced cooling rate with increased depositions. Mechanical testing exhibits high tensile strength and ductility, which is primarily due to compressive residual stress and lattice strain development. In deposits, ϒ-fibre evolution is more resilient due to the continuous recrystallisation process after each successive deposition. Tensile-induced deformation mostly favours ζ and ε-fibre development due to high strain accumulations.

Originality/value
This modified electrode arrangement in NTA-WAM suitably reduces spatter and bead height deviation. Low penetration depth and dilution denote a reduction in heat input that enhances the cooling rate.
The moderating role of government support in chatbot adoption intentions among Malaysian government agencies
Authors: Jais Ramizatunnisah , Ngah Abdul Hafaz 
Published: January 2024

Purpose
This study aims to use a survey to examine the factors encouraging Malaysian government agencies (MGAs) to adopt chatbots, which are a new artificial intelligence technology.

Design/methodology/approach
The minimum sample size was 98 according to the complexity model, and the respondents were top MGA management personnel. The questionnaire was emailed to all MGAs, and data were collected using snowball sampling in the technology–organization–environment (TOE) framework. Out of 348 top management personnel contacted, 341 agreed to participate in the study.

Findings
Technology readiness (TR), organizational readiness (OR) and citizen demand were all positively related to chatbot use intention. Government support (GS) strengthened the relationship between OR, TR and chatbot adoption intentions. The findings demonstrated the ability of the TOE framework to ascertain the factors influencing MGA chatbot adoption.

Research limitations/implications
This study was limited to Malaysian federal government agencies.

Practical implications
The findings provide useful information for a better understanding of factors influencing the adoption of chatbots among Malaysian government agencies. Related parties, such as the head of department, could use these findings to plan further action to empower counter service by integrating chatbot adoption.

Originality/value
The study revealed the capability of the TOE framework to identify the factors influencing the decision to adopt chatbots among Malaysian government agencies. GS was found to have moderation effect on the relationship between OR and TR toward the intention to adopt a chatbot.