bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characterizing longitude variation on Chariklo's main ring
Authors: Gomes-Junior A. R. , Mitidiero A. L. R. , Morgado B. E. , Sicardy B. 
Published: February 2025

In 2013, a stellar occultation revealed the presence of a ring system around the Centaur Chariklo, marking the first discovery of such a feature on a small body. Subsequent observations indicated that the main ring exhibits not only radial density variations but also changes in width depending on longitude. In this study, we propose a method to determine the longitude (within an inertial reference frame) and the orbital radius of each point of the ring detected during stellar occultations. In addition, we provide a descriptive analysis of the ring’s width variations and identify the combination of oscillation modes 1 and 2 as the most likely pattern governing the ring behaviour.
This article is part of the theme issue ‘Major advances in planetary sciences thanks to stellar occultations’.
Yarkovsky and YORP effects simulation on 3200 Phaethon
Authors: Senshu Hiroki , Noda Hirotomo , Yoshida Fumi , Ito Takashi , Hamm Maximilian , Marshall Sean 
Published: February 2025

We carry out a numerical study on the thermal behaviour of asteroid 3200 Phaethon, the parent body of the Geminid meteor shower. Phaethon’s orbit is highly eccentric, with the perihelion distance as small as

0.14

au

. During the perihelion passage the surface temperature rises so much that the reaction force of the thermal radiation from its surface affects Phaethon’s orbital and spin motion. We evaluate this thermal effect precisely by numerically modelling the thermal variation during an orbital period. We find that the thermal effect, both on the orbital motion and spin, changes its sign near the perihelion owing to the geometric configuration of the spin axis direction relative to the Phaethon–Sun direction. Consequently, the canonical expression of the thermally induced momentum is not applicable for the case of bodies on a highly eccentric orbit such as Phaethon. Nevertheless, the resulting orbital-averaged thermal effect is consistent with ground-based observation and previous estimates.

This article is part of the theme issue ‘Major advances in planetary sciences thanks to stellar occultations’.
Exploiting the Angiotensin-Converting Enzyme Pathway to Augment Endogenous Opioid Signaling
Authors: Dobariya Prakashkumar , Williams Jessica , Hanak Filip , Rothwell Patrick E. , More Swati S. 
Published: February 2025

AbstractAngiotensin Converting Enzyme (ACE) impacts hemodynamics by regulating the conversion of angiotensin I to the vasoconstricting angiotensin II. We recently identifieda non-canonical centralrole of ACE in the degradation of enkephalin heptapeptide, Met-enkephalin-Arg-Phe (MERF). Enkephalins are short-lived, endogenous opioid peptides that mediate the body’s intrinsic analgesic response. Here we identify chemically diverse ACE inhibitors using an optimized high throughput screening assay to boost endogenous opioid signaling. Our primary hits (thiorphan, D609, and raloxifene) were selected for dose-response characterization,in vitroenkephalin release,in vivoanalgesic potency, andin silicoanalysis. Intracerebroventricular administration of these compounds significantly attenuated pain response, alone and in combination with MERF, which was reversed by opioid receptor antagonist naloxone. Molecular docking provided additional insight into the active site interactions of these scaffolds, which could be exploited further for creation of more potent inhibitors. These results showcase the potential of central ACE inhibitors to modulate endogenous MERF signalling.Graphical Abstract
How being a former/current executive impacts directors’ boardroom dynamics and board role execution
Authors: Bhardwaj Sneh , Nicholson Gavin , Morgan Damian 
Published: February 2025

PurposeDirectors’ human capital has long been recognised as vital to ensuring effective corporate governance. While previous studies have sought to link director human capital with specific firm-level outcomes, there are persistent challenges facing researchers who seek to understand better what kind of human capital makes a difference to effective board role execution. This study aims to understand whether the way directors fulfil their roles and contribute to boardroom dynamics is shaped by any human capital they gain via senior executive experience.Design/methodology/approachWe draw insights from 30 in-depth, semi-structured interviews with Indian directors to capture their perceptions and experiences of how a specific kind of human capital, namely the C-suite experience, affects directors' boardroom dynamics and board role execution.FindingsWe highlight how directors with executive experience appear to have a more salient set of human capital to draw on. Specifically, they report navigating governance processes differently, displaying a more contextualised understanding of boardroom dynamics and having a broader understanding of the firm’s problems. Doing so enables them to foster constructive board-management relationships and improve their service role execution.Research limitations/implicationsOur qualitative data are drawn from a purposively sampled group in a specific governance system (India). While this does not threaten the key theoretical insights, it does raise questions about their generalisability to other governance contexts.Practical implicationsDirectors with executive experience build trust through their orientation towards and understanding of management without diminishing their capacity to scrutinise management decisions. The human capital of these directors appears to engender a more effective and contextualised boardroom dynamic that facilitates the execution of socialised accountability through balancing the control and service roles.Originality/valueOur findings highlight the potential importance of a shared understanding of the communication and collaboration processes of corporate governance (i.e. a common transactional memory framework) between directors and management. Directors who share this understanding with management are more likely to effectively engage in the service role while not compromising the control role. This shared understanding appears to allow these directors and executives to encode, store and retrieve relevant information they need more effectively, engendering the trust between them that seems to foster socialised accountability.
The double-edged sword of leader-member exchange: when and why leader-­member exchange promotes versus inhibits workplace deviant behavior
Authors: Yang Huan , Zhao Xinyuan , Huang Gui , Zhang Long , Zhang Yi 
Published: February 2025

Purpose
Managers in China prioritize the cultivation of loyal employees, resulting in positive effects associated with leader-member exchange (LMX). However, fragmented evidence suggests that LMX also can trigger deviant behavior. LMX provides employees with access to resources, while it also harbors potential risks for deviant behaviors. Based on the cognitive-affective system theory of personality and resource-related theories, this study aims to explore the double-edged sword effects of LMX by examining how LMX influences interpersonal deviant behaviors through emotional and cognitive pathways, respectively.

Design/methodology/approach
This study involved three waves of paired data surveys that were conducted in China over one month, and a total of 117 leaders and 235 subordinates participated in this study.

Findings
Even though LMX as a job resource reduces workplace anxiety, LMX also generates work overload for employees. Workplace anxiety and work overload further result in interpersonal deviant behavior. Narcissistic admiration, as a personality trait, can weaken the mediating role of work overload but not that of workplace anxiety.

Practical implications
The finding can help managers pay attention to negative effect of LMX and provide suggestions for preventing employees’ workplace deviant behavior.

Originality/value
The findings revealed how LMX leads to negative outcomes in the workplace. In addition, the results demonstrated the buffering effect of narcissistic admiration on the negative effect of LMX.
Measuring employee learning engagement: a scale development for learning and development practitioners
Authors: Deb Biswas Debanjana , Sengupta Ruparnab 
Published: February 2025

Purpose
To develop a valid and reliable scale for measuring employee learning engagement (ELE) in corporate learning and development (L&D) programs.

Design/methodology/approach
The study developed a 4-item scale on ELE, based on the literature of engagement and L&D. The scale’s reliability and validity were established through three separate studies conducted on a total of 150 employees across various sectors in India.

Findings
The items of the scale exhibited strong reliability and validity, capturing the key aspects of employee engagement during learning programs.

Practical implications
This scale offers both practical and theoretical implications for L&D practitioners and scholars that are discussed in detail in the paper.

Originality/value
This study is a pioneer in empirically developing and validating a measure of ELE, advancing research on engagement while supporting practitioners in optimizing corporate training strategies.
Enhance learner’s engagement ownership by measuring individual’s learning engagement
Authors: Wavre Shrikant Prabhakar , Kuknor Sunaina , Chaturvedi Sharma Nupur 
Published: February 2025

Purpose
To identify factors and indicators for measuring individuals’ learning engagement (ILE) for learner’s ownership.

Design/methodology/approach
This study used a mixed method with literature review, a survey, and focused group discussions.

Findings
The study proposes six factors and 16 indicators for measuring ILE for learner’s ownership.

Research limitations/implications
Measuring ILE factors with a large number of participants in a learning session may be a challenge.

Practical implications
The ILE factor measurement can enhance learner engagement, ownership, facilitator style, and content, resulting in better learning outcomes.

Originality/value
The study adds to the learning engagement domain by proposing factors for measuring ILE for learners’ ownership.
Zepto: redefining the future of rapid delivery
Authors: Karulkar Yashodhan , Sampat Brinda , Thapliyal Anshuman , Singh Bhavyaraj , Gupta Devansh 
Published: February 2025

Learning outcomes

Understanding of quick commerce (q-commerce) and its relevance in modern retail.
Analysis of market entry strategies and competitive landscapes.
Insights into operational challenges and solutions in rapid delivery services.
Exploration of consumer behavior shifts and business adaptation in response to global events.

Case overview/synopsis
The case examines Zepto’s innovative approach in the quick commerce sector, emphasizing its strategies, challenges and the impact of the pandemic on its operations and growth.

Complexity academic level
This case study is suitable for undergraduate-level students, particularly in courses related to business management, e-commerce, marketing and supply chain management.
What drives participation in green loyalty programmes? Examining reactance, guilt and staff attractiveness
Authors: Huang Jingxi , Daryanto Ahmad , Hogg Margaret Kathleen , Chan Jin Hooi 
Published: February 2025

Purpose
This study aims to address the challenge of encouraging customers to join hotels’ green loyalty programmes (LPs) by examining the impact on customers’ decisions of their trait reactance, anticipated guilt and the physical attractiveness of service employees.

Design/methodology/approach
The authors conducted three preliminary studies and one main study using scenario-based online surveys targeting Chinese hotel customers. The first two preliminary studies (N1A = 100, N1B = 158) explored the negative emotions (guilt vs. shame) linked to non-participation in green LPs, while the third study (N1C = 110) examined gender’s role in perceived physical attractiveness. The main study (n = 836) tested the three-way interaction effect.

Findings
This analysis confirms that guilt, rather than shame, plays a significant role in the decision-making process for participating in green LPs. The results reveal that trait reactance strongly deters participation intention when customers anticipate low guilt and perceive service employees as less attractive. Notably, higher anticipated guilt renders trait reactance ineffective in influencing intentions, regardless of employees’ attractiveness.

Research limitations/implications
The results reveal that a high level of anticipated guilt is the key to boosting customers’ intention to participate in a hotel’s green LP, which can mitigate the negative impact of customers’ trait reactance.

Originality/value
To the best of the authors’ knowledge, this is the first study to demonstrate how anticipated guilt can lessen the negative effects of customers’ trait reactance on their intention to participate in green LPs. In addition, the findings reveal that guilt not only narrows customers’ attentional focus but also influences how the attractiveness of service employees affects their decision-making processes. the work introduces a new angle on how emotional responses (anticipated guilt) interact with physical cues (employee attractiveness) in shaping customer decisions concerning the hotel’s green initiatives.
Expanding the domain of hospitality research: the hospitality virtue scale
Authors: Line Nathan Discepoli , Hanks Lydia , Njeri Millicent , Mody Makarand Amrish 
Published: February 2025

Purpose
This paper aims to put forth the proposition that the concept of hospitality is broader than what is often acknowledged in academic research. Specifically, this paper establishes hospitality as a fundamental human virtue. Accordingly, all people are proposed to exhibit daily actions associated with this virtue – albeit to varying degrees. A conceptual and operational definition of hospitality virtue is proposed.

Design/methodology/approach
Churchill’s (1979) construct development process is used to operationalize the hospitality virtue construct. Item generation, exploratory factor analysis and confirmatory factor analysis are used to establish an operational definition for the construct.

Findings
The results indicate that hospitality virtue is a second-order construct consisting of three dimensions: empathy, execution and embrace. This specification is referred to as the E3 hospitality virtue scale. As evidence of the nomological validity of this scale, the construct is demonstrated to have a positive impact on human flourishing.

Research limitations/implications
To date, the vast majority of hospitality research has been conducted at the industry level. This research has the potential to break down the industry barriers that have constrained the broader impact of hospitality research and practice at the human and societal levels.

Originality/value
To the best of the authors’ knowledge, this is the first study to empirically consider hospitality not as an industry-level phenomenon, but as a fundamental part of the human condition. While there is evidence for this idea throughout the history of philosophy, this paper is the first to lend an operational structure to this concept.
Does rebate in deferred sales differ from rebate in loans? A critical appraisal of discretionary rebate practice in Islamic finance
Authors: Rahman Md. Habibur 
Published: February 2025

Purpose
This study aims to investigate whether offering contractual rebates in deferred sales equals or differs from offering them in loans and critically evaluate the practice of discretionary rebates in Islamic finance.

Design/methodology/approach
The study follows a qualitative approach. It obtains primary data through 15 qualitative interviews with Sharìah scholars and Islamic bankers. A general review is conducted to consult classical sources of Sharìah and other related scholarly materials to delve into the issue. The study utilises a thematic analysis technique to investigate qualitative data.

Findings
The study finds that a contractual increase in the price of deferred sales due to a moratorium is permissible, and it differs from an increment in loans, which is riba, i.e., usury. Likewise, a contractual rebate on deferred sales due to early settlement is lawful, not riba. Even a contractual loan reduction due to early repayment is permissible, not riba, based on the Prophet’s saying dà wa tàajjul, i.e., “reduce and expedite.” Offering contractual rebates does not contradict Sharìah. Rebates motivate clients to make regular and prompt repayments. The study verifies that a discretionary rebate does not provide this benefit; instead, clients feel insecure about whether and how much rebate they will obtain, depending on banks’ discretion. A discretionary rebate may cause disputes and gharar, i.e. ambiguity, in agreement. The study posits that a contractual rebate can be offered, and necessary clauses on a mandatory rebate and its calculation formula shall be incorporated into the main contract. Nonetheless, offering rebates has become a custom, resembling an agreement stipulation. The regulators could oblige to offer rebates, provided it secures public wellbeing and eliminates possible harm.

Practical implications
This study advocates a contractual rebate, which removes clients’ unhappiness and the possibility of dispute. By incorporating a binding rebate into the agreement, Islamic banks will remain competitive and flexible in pricing. A secure rebate genuinely encourages customers to settle their debt promptly. Moreover, the study would lead to a harmonisation of rebate offerings in Islamic finance across jurisdictions.

Originality/value
Previous studies theoretically addressed contractual rebates but made no difference between loan and credit sale rebates. This study is an unprecedented effort to examine empirically the validity and implications of contractual rebates. It highlighted the difference between the loan and deferred sale rebates. Additionally, the study will support Sharìah scholars, Islamic bankers and regulators in allowing and guiding contractual rebates accordingly.
Does capital structure mediate the relationship between corporate governance compliance and firm performance? Empirical evidence from Pakistan
Authors: Shakri Irfan Haider , Yong Jaime , Xiang Erwei 
Published: February 2025

Purpose
The purpose of this study is to examine how capital structure mediates the effects of corporate governance (CG) compliance on firm performance (FP) in the context of a developing market experiencing significant reforms to its governance landscape.

Design/methodology/approach
An index was built to measure firm-level compliance with Pakistan’s code of CG. Several robustness checks were performed, including alternate proxies of dependent and independent variables, using additional control variables and considering the Global Financial Crisis period. To address dynamic effects and endogeneity, several identification strategies were used: a leading dependent variable, fixed effects model, generalised method of moments model and propensity score matching.

Findings
CG compliance leads to higher FP. However, higher leverage partially and negatively mediates this association. The results of this study are robust against alternate proxies of dependent and independent variables and possible endogeneity issues.

Originality/value
This study constructs a summative measure of CG compliance that captures not only firm-level compliance to the prescribed codes but also the benefits of incremental improvements and reforms in the governance of the Pakistan market. This study offers insights into an emerging market, contributing further empirical evidence to support greater market transparency through mechanisms such as CG compliance and the monitoring effects of debt. However, this study cautions that greater compliance raises costs, especially when associated with higher leverage, and can undermine FP.
The impact of financial technology on bank’s performance in Egypt: the moderating role of COVID-19 pandemic
Authors: Fahmy Omar Ehab Ezzat , Hashim Ibrahim Ahmed Amin 
Published: February 2025

Purpose
The study aims to examine the moderating role of COVID-19 in the effect of financial technology on bank performance in the Egyptian banking sector.

Design/methodology/approach
The study uses a panel regression model, estimated using a fixed-effects approach, for the period spanning 2016–2022.

Findings
The study reveals a significant positive effect of financial technology on bank performance. In contrast, control variables such as the inflation rate and firm size show no notable impact on performance. Conversely, the annual gross domestic product growth rate exhibits a positive and significant influence on bank performance. Furthermore, COVID-19 moderates the relationship between the cost of software automation and variables such as capital adequacy (CA), asset quality (AQ) and liquidity, as well as the relationship between ATM machines and liquidity. However, it does not affect the relationship between the number of credit cards and any performance metrics.

Research limitations/implications
The study focuses exclusively on one country, Egypt and one industry, banking. Other financial institutions, such as insurance companies, leasing companies and investment trusts, are not included in this analysis.

Practical implications
The results confirm the policymakers should encourage collaboration between banks and fintech firms by relaxing regulatory constraints and providing incentives for mergers and acquisitions, which can generate significant synergies within the banking sector.

Originality/value
To the best of the authors’ knowledge, this is the first study to examine the impact of financial technology on bank performance using five different measures: CA, AQ, earnings, liquidity management and financial stability.