bluuebunny/crossref_metadata_2025_split huggingface dataset:
How much is ‘enough’? Considerations for functional connectivity reliability in pediatric naturalistic fMRI
Authors: Rai Shefali , Godfrey Kate J. , Graff Kirk , Tansey Ryann , Merrikh Daria , Yin Shelly , Feigelis Matthew , Demeter Damion V. , Vanderwal Tamara , Greene Deanna J. , Bray Signe 
Published: December 2024

Abstractfunctional connectivity (FC) measurements are important for robust and reproducible findings, yet pediatric functional magnetic resonance imaging (fMRI) faces unique challenges due to head motion and bias toward shorter scans. Passive viewing conditions during fMRI offer advantages for scanning pediatric populations, but FC reliability under these conditions remains underexplored. Here, we used precision fMRI data collected across three passive viewing conditions to directly compare FC reliability profiles between 25 pre-adolescent children and 25 adults, with each participant providing over 2.8 hours of data over four sessions. We found that FC test-retest correlations increased asymptotically with scan length, with children requiring nearly twice the post-censored scan time (24.6 minutes) compared to adults (14.4 minutes) to achieve comparable reliability, and that this effect was only partly attributable to head motion. Reliability differences between lower-motion adults and higher-motion children were spatially non-uniform and largest in ventral anterior temporal and frontal regions. While averaging features within functional networks improved intraclass correlation coefficient (ICC) reliability, values for higher-motion children remained in the poor-to-fair ICC range even with 48 minutes of total scan time. Viewing conditions with greater engagement reduced head motion in children but had lower FC reliability compared to less engaging ‘low-demand’ videos, suggesting complex state- or condition-related trade-offs. These findings have important implications for developmental neuroimaging study design, particularly for higher motion pediatric populations.
Gravitational waves from thermal heavy scalar dark matter
Authors: Ghorbani Parsa 
Published: December 2024

We propose a gauge singlet scalar with mass around 1–100 TeV as a thermal heavy dark matter candidate along with a dilaton as a Higgs portal mediator in a dimensionless scalar extension of the Standard Model. We demonstrate analytically that such a model gives rise to very strong first-order electroweak phase transition through supercooling. We calculate the corresponding gravitational wave signals due to bubble collisions during the phase transition. The produced gravitational waves can be detected by future space-based gravitational wave detectors in the frequency range from 10−4  to 0.1 Hz.

Published by the American Physical Society
2024
Co-encapsulation of vitamin D3 and Cordia myxa fruit peel extract in nanoemulsions
Authors: Rousta Parisa , Shahamirian Mozhgan , Yazdanpanah Sedigheh , Shirazinejad Alireza 
Published: December 2024

PurposeThis study investigated the production of free and encapsulated nanoemulsions using Cordia myxa fruit peel (CMFP) extract and vitamin D3.Design/methodology/approachThe CMFP extract was obtained using an ultrasonic technique, and its characteristics such as total phenolic content (TPC), antioxidant activity, cytotoxicity and gas chromatography-mass spectrometry (GC/MS) analysis were assessed. CMFP was encapsulated in vitamin D3 oil droplets of nanoemulsion prepared by ultra-homogenization using calcium alginate polymer. The nanoemulsions were evaluated for 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity, antimicrobial activity, morphology, Fourier transform infrared (FTIR) analysis and release rate in a simulated gastrointestinal model.FindingsThe GC/MS results revealed that pyrocatechol, cholestanoids and propionaldehyde were the predominant compounds in the extract. The highest cytotoxicity effect of CMFP was observed at concentrations of 6.25 and 12.5 ppm of the extract. Encapsulated nanoemulsions exhibited the highest antimicrobial activity against Escherichia coli (ATCC 35218). The antioxidant activity of the free and encapsulated nanoemulsions ranged from 25.81 to 36.08 mg/100g and 49.25–55.7 mg/100g, respectively. Free nanoemulsions showed a higher release rate in the simulated gastric model compared to encapsulated ones. The FTIR spectrum allowed for the identification of functional groups responsible for antioxidant and antibacterial properties, indicating that these properties of the nanoemulsions were maintained.Originality/valueThis study demonstrates the successful co-encapsulation of CMFP extract and vitamin D3 in nanoemulsions, which significantly enhanced the stability, bioavailability and functional properties of both compounds. Encapsulated nanoemulsions exhibited higher antioxidant and antimicrobial activities compared to their free counterparts, with controlled release in simulated gastrointestinal conditions. These findings confirm that nanoemulsion-based encapsulation is an effective strategy to protect and enhance the bioactivity of plant extracts and vitamins, supporting their potential use in functional food products and therapeutic application.
How does the regulatory focus of CEOs spur firms’ innovation? Moderating roles of CEO tenure, gender diversity and industry munificence
Authors: Lahyani Fathia Elleuch , Mardini Ghassan H. , Kohin Levi 
Published: December 2024

Purpose
Grounded on regulatory focus theory, this study aims to explore whether the regulatory focus of leadership (promotion versus prevention) influences a firm’s innovation. Moreover, it examines the moderating effect of industry munificence, gender diversity and chief executive officer (CEO) tenure.

Design/methodology/approach
Using random effects and the generalized method of moments (GMM), this relationship was examined using firms listed in the S&P 500 index in the period 2015–2020.

Findings
The evidence suggests that CEOs with a promotion focus significantly impact firms’ innovation, with the relationship being moderated by CEO tenure, gender diversity and industry munificence. However, CEO prevention focus does not determine strategic choices in relation to innovation. The study offers insights into corporate governance and corporate management that address stakeholders’ growing demands to innovate and appoint experienced CEOs with a promotion focus so as to ensure firm growth, particularly under the circumstances of strong market competition.

Originality/value
The study enhances the comprehension of the relevance of CEO regulatory focus and innovation while considering the effect of CEO tenure, gender diversity and industry munificence.
From intent to impact: top management’s commitment influence on sustainable risk management under stakeholder pressure
Authors: Irfan Muhammad , Ghufran Maria , Musarat Muhammad Ali 
Published: December 2024

PurposeThe present study adopted a system thinking methodology to investigate the influence of top management commitment (TMC) on sustainable risk management (SRM) influenced by stakeholder pressures.Design/methodology/approachThree variables and 23 measurement items were derived from existing literature sources. Moreover, the methodology employed for data collection in this study involved a questionnaire. The constructs previously documented in the literature were utilized as the foundation for developing the questionnaire. Of 220 sent questionnaires, 106 valid responses were used for further analysis. To enhance objectivity, a causal loop diagram and a stock and flow diagram were created using a system thinking approach. These visual representations aim to illustrate the impact of top management factors on SRM under stakeholder pressure-related factors.FindingsThe results of the descriptive test indicate that the safety and quality issues emerged as the most significant, with the highest mean impact of 4.08 on sustainable risk impact assessments. Employee influence on customer relationships also showed a high mean impact of 4.08, while understanding customer requirements closely followed with a mean of 3.98. Additionally, causal loop analysis uncovered complex interconnections among these factors, emphasizing the intricate nature of SRM. Further, a five-year simulation analysis highlighted that SRM effectiveness is significantly enhanced when top management fosters a robust organizational culture. These findings emphasize the critical roles of safety, quality and customer-focused factors in sustainability, underscoring the importance of leadership in fostering effective, holistic sustainability and risk management strategies.Originality/valueThis research highlights top management’s pivotal role in effective SRM by integrating sustainability into core strategies. It identifies critical factors and emphasizes the solid organizational culture fostered by senior management, which is essential for long-term SRM effectiveness. The study’s focus on safety, quality and customer relations underscores the need for comprehensive sustainability strategies.
Investigating the influence of cutting fluid on tool life and power usage during AISI-4130 steel turning
Authors: Ghuge Nilesh C. , Palande Dattatray D. 
Published: December 2024

PurposeThis study evaluates the impact of cutting fluids on energy consumption and tool life in machining, focusing on sustainable practices to reduce environmental impact and improve efficiency. By comparing vegetable-based soyabean oil with mineral-based blasocut oil, the study assesses their effects on power usage and tool life.Design/methodology/approachThis study introduces a novel approach by applying both response surface methodology (RSM) and artificial neural network (ANN) models to validate the performance of vegetable-based cutting fluids, specifically soyabean oil, in machining operations.FindingsResults indicate that soyabean oil reduces energy use by 9% and extends tool life by 29% compared to blasocut oil, with strong alignment between model predictions and actual results.Research limitations/implicationsThe findings, though specific to certain fluids and conditions, suggest that soyabean oil offers a viable eco-friendly alternative for machining processes.Practical implicationsAdoption of such fluids could lower greenhouse gas emissions, reduce dependency on mineral oils and benefit farmers by creating additional demand for vegetable oils.Originality/valueThis dual-model validation of cutting fluid performance marks an innovative contribution to sustainable machining, supporting the adoption of greener, resource-efficient manufacturing practices. This study underscores the potential of vegetable-based cutting fluids to enhance sustainability in manufacturing.
Online knowledge sharing and employee innovation: the role of job self-efficacy and innovative climate
Authors: Smith David 
Published: December 2024

Purpose
This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies.

Design/methodology/approach
This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context.

Findings
A study from Vietnam of 353 IT workers showed online knowledge sharing positively influenced employee innovation both directly and indirectly through job self-efficacy. The results also revealed that the innovative climate positively affected employee innovation, as well as moderated the relationship between online knowledge sharing and employee innovation.

Originality/value
The briefing saves busy executives, strategists and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.
Understanding dynamics between public policy and global value chains (GVCs): governance for sustainability in the Brazilian Amazon beef cattle GVC
Authors: Loomis John James , Puppim de Oliveira José Antônio 
Published: December 2024

PurposeThis article unveils the governance dynamics of a frontier region for global value chains (GVCs). For this purpose, we developed a replicable methodology to analyze the interaction between public policies and the governance of GVCs to better assess sustainability impacts and business responses. We apply this methodology to understand the governance dynamics in the beef cattle GVC in the Brazilian Amazon. In Brazil, cattle ranching increasingly concentrates in the Amazon region, notably in the state of Pará, becoming the major driver of deforestation as public policies and law enforcement are ineffective. Using our methodology, we were able to identify the main weaknesses in governance pertaining to sustainability in the beef GVC.Design/methodology/approachThe methodology employed a case study approach and utilized GVC mapping and analysis using primary (semi-structured interviews and site visits) and secondary data sources. The governance structures along the GVC were characterized. Finally, the sustainability and upgrading within and beyond the GVC were analyzed.FindingsBased on our methodology, emerging beef GVCs, such as those in Santarém, Pará State, primarily supply the domestic market without external pressures to improve sustainability. This fact coupled with a lack of local capacity to implement public policies presents challenges for sustainable governance. Efforts to enhance the performance of the value chain predominantly stem from private sector capacity-building initiatives targeting ranchers.Originality/valueThrough the development of our method, the governance of the Brazilian beef GVC in the Amazon is mapped and analyzed. This study introduces a novel sustainability-focused GVC mapping methodology aimed at establishing a standardized framework to enhance the comparability of research. As a result, this study offers useful theoretical and empirical contributions to the literature on the sustainability of GVCs in frontier regions where public governance capacity is low.
The glue that binds: how organizational identification drives innovation performance in foreign-owned subsidiaries
Authors: Dahms Sven , Cabrilo Sladjana , Kingkaew Suthikorn 
Published: December 2024

PurposeAlthough organizational identification has been recognized as crucial for multinational enterprises, its configurations regarding innovation performance at the subsidiary level have hitherto received scant attention. Accordingly, the purpose of this research is to identify the types of configurations in which organizational identification in foreign-owned subsidiaries leads to high innovation performance.Design/methodology/approachWe base our research on social identity theory and the neo-configurational perspective to test our framework using survey data collected from subsidiaries located in Thailand and Vietnam.FindingsOur results provide evidence that organizational identification serves as a glue that binds strong inter- and intra-organizational network relationships to drive innovation performance. While we find some variation in that pattern between the two host countries, it appears overall that the conditions of expatriates in top management and the geographic distance between home and host country only play a peripheral role. We identify the “integrated innovation driver” and “distant local hub” as two subsidiary archetypes that show how organizational identity can drive high innovation performance in subsidiaries.Originality/valueThis study is one of the first to empirically investigate the main complementing factors in the context of organizational identification and innovation in foreign-owned subsidiaries, which have previously predominantly been investigated in isolation of each other.
Role of leadership in promoting health and safety culture: “A comprehensive review of GCC countries”
Authors: Alamri Reem Abdullah 
Published: December 2024

Purpose
This study aims to investigate the pivotal role of leadership in fostering a health and safety (H&S) culture in Gulf Cooperation Council (GCC) countries and identify key challenges faced by these nations. The promotion of H&S culture has become increasingly crucial, with GCC leaders playing a vital role in reducing employee turnover rates by ensuring a safe and healthy work environment. Despite substantial research into issues such as the lack of training, workforce diversity and employee engagement in promoting H&S culture in the Gulf region, significant gaps remain. These gaps highlight the need for additional investigation into the impact of H&S culture, constrained by limited time and resources.

Design/methodology/approach
Using a content analysis method, 18 previous studies were thoroughly reviewed to identify the main themes and areas requiring further improvement.

Findings
The findings of this study suggest that enhancing the understanding and implementation of H&S practices provide significant implications for leaders and organizations in the GCC. Effective strategies to improve workplace safety and employee retention are crucial. The study underscores the necessity for GCC leaders to actively drive the H&S agenda, emphasizing that a robust H&S culture is essential for reducing turnover and fostering a safer, more productive work environment.

Originality/value
Despite substantial research into issues such as the lack of training, workforce diversity and employee engagement in promoting H&S culture in the Gulf region, significant gaps remain. These gaps highlight the need for additional investigation into the impact of H&S culture, constrained by limited time and resources.
Early identification of potentially low performing community health workers using an ensemble classification model
Authors: Bora Girdhari , Kumar Rajiv , Joseph Ajil 
Published: December 2024

PurposeCommunity health workers (CHWs) are vital to addressing public health system limitations in developing countries. However, effective identification and support of underperforming CHWs remains a challenge. This study develops a predictive model to proactively identify underperforming CHWs, facilitating targeted interventions for improved CHW programmes.Design/methodology/approachWe developed a predictive model to identify underperforming CHWs in Uttar Pradesh, India. Data from 140,101 CHWs over a 12-month period was used to build, test and validate the model. Classification techniques, ensemble modeling and a model tuning algorithm were employed for accuracy optimization and early identification.FindingsLogistic regression, decision trees and random forests yielded the best performance. While ensemble models offered no significant performance improvements over the base models, the model tuning algorithm effectively increased prediction accuracy by 19 percentage points. This enabled early identification of poor-performing CHWs and high-risk CHW clusters early in the year.Practical implicationsThe developed model has significant potential to improve CHW programmes. It enables targeted support, feedback and resource allocation, leading to enhanced CHW performance, motivation and healthcare outcomes in the communities they serve. The model can provide personalised feedback to help CHWs overcome challenges and dynamic clustering facilitates proactive identification and tailored support for those at risk of underperformance.Originality/valueThis study is the first attempt to use predictive modelling to identify underperforming CHWs, advancing the nascent field of CHW performance analytics. It underscores the effectiveness of digital technologies and data in improving CHW programmes.
Beyond Sharpe ratio: comparison of risk-adjusted performance of Shariah-compliant and conventional indices
Authors: Raza Muhammad Wajid , Ye Jiang 
Published: December 2024

Purpose
Upper bound on Sharpe ratio helps to evaluate the risk-adjusted performance in real market setting. The purpose of this study is to evaluate the performance of Shariah-compliant indices (SCIs) and also estimate the upper bound on Sharpe ratio in real-market setting. For comparison, the authors also report the same statistics for conventional indices (CIs).

Design/methodology/approach
This study considers returns of 12 indices from Asia-Pacific and the USA for the time period May 31, 2013-Aug 25, 2022. These indices are further classified as small-, mid- and large-cap indices. The upper bound is estimated in three settings, an unconstrained setting, correlation constraint and copula constraint.

Findings
The authors found that upper bound estimation is sensitive to both the choice of index, geographic location and size of constituents within the index. Interestingly, SCIs outperform CIs both in terms of Sharpe ratio and upper bound estimations. The ability of SCIs to achieve high Sharpe ratio boosts investors’ confidence. The results are robust even after introducing correlation and copula constraints to the model.

Practical implications
Any violation of the upper bound on Sharpe ratio is not necessarily an indication of fraud or dubious Sharpe ratio. It should be interpreted only as a signal for inflated risk-adjusted performance and requires further investigation. Together with risk-adjusted performance, fund managers should report upper bounds to insure investor protection.

Originality/value
Many studies have compared the risk-adjusted performance of SCIs and CI. To the best of the authors’ knowledge, this study is the first effort to evaluate and compare the upper bounds on Sharpe ratio of SCIs in a real-market setting.
Do economic uncertainty and political risk steer CDS dynamics? An analysis of the Türkiye CDS
Authors: Tekin Bilgehan 
Published: December 2024

Purpose
This study aims to identify critical determinants of sovereign credit risk by examining the influence of oil prices, gold prices, geopolitical risk, market volatility, exchange rates, inflation and non-performing loans on Türkiye’s credit default swap (CDS) spreads. This analysis provides a comprehensive understanding of how economic uncertainty and political risk impact Türkiye’s financial stability, as reflected in its CDS market. This study investigates the importance of ex ante proxies in explaining changes in CDS spread by financial and economic indicators in Türkiye.

Design/methodology/approach
This research explores the connections between critical financial and economic indicators and the credit risk of Türkiye between 2009 and 2022 by using advanced econometric techniques such as ARDL bound tests, fully modified ordinary least squares (FMOLS), dynamic ordinary least squares (DOLS), Johansen co-integration tests and VECM Granger causality analyses.

Findings
ARDL bound test results reveal significant negative impacts of BIST and non-performing loans on CDS, and positive associations with inflation, VIX and geopolitical risk on CDSs. The short-term results show that BIST, INFL, NPL, USD, VIX and GPRT have negative coefficients. Johansen co-integration, FMOLS and DOLS results reinforce the ARDL findings. Moreover, BIST is a significant Granger cause of CDS.

Originality/value
This study is significant, as it jointly considers economic and political risk factors, thereby integrating multiple econometric models to provide more robust, meaningful and comparable results. By examining these factors together, the analysis offers a more comprehensive understanding of risk dynamics, yielding insights relevant to Türkiye. Although the findings are specific to Türkiye, they have broader implications, enriching the understanding of emerging economies. Türkiye’s status as a key representative of emerging markets strengthens the study’s value, as the results can serve as a reference point for other countries with similar economic structures. The importance of this study is also underscored by its potential to inform risk management strategies, guide policy decisions and offer insights to investors and financial analysts. By elucidating the intricate relationships among a broad spectrum of macroeconomic variables, this research contributes to a more comprehensive risk assessment framework. It equips stakeholders with a more informed perspective on the factors influencing credit risk in Türkiye’s economic landscape.