bluuebunny/crossref_metadata_2025_split huggingface dataset:
Can diversification be improved by using cryptocurrencies? Evidence from Indian equity market
Authors: Jana Susovon , Sahu Tarak Nath 
Published: September 2023

PurposeThis study aims to investigate the possibilities of cryptocurrencies as hedges and diversifiers in the Indian stock market before and during financial crisis due to the pandemic and the Russia–Ukraine war.Design/methodology/approachResearchers have used daily data on cryptocurrencies and Indian stock prices from March 10, 2015 to August 26, 2022. The researchers have used the dynamic conditional correlations (DCC)-GARCH model to determine the volatility spillover and dynamic correlation between stocks and digital currencies. Further, researchers have explored hedge ratio, portfolio weight and hedging effectiveness using the estimates of the DCC-GARCH model.FindingsThe findings indicate a negative conditional correlation between equities and cryptocurrencies before the crisis and a positive conditional correlation except for Tether during the crisis. Which implies that cryptocurrencies serve as a hedging asset in the stock market before a crisis but are not more than a diversifier during the crisis, except for Tether. Notably, Tether serves as a safe haven during times of crisis. Finally, the study suggests that Bitcoin, Ethereum, Binance Coin and Ripple are the most effective diversifiers for Indian stocks during the crisis.Originality/valueThis study makes several contributions to the existing literature. First, it compares the hedge and diversification roles of cryptocurrencies in the Indian stock market before and during crisis. Second, the study findings provide insights on risk hedging and can serve as a guide for investors. Third, it may help rational investors avoid underestimating risk while constructing portfolios, particularly in times of financial turmoil.
Assessing the impact of early supplier involvement on public works procurement
Authors: Osei-Appiah Vincent Kwame , Kissi Ernest , Karikari Victor Acheamfour , Ayeng Prosper , Danquah-Smith Eugene , Adesi Michael 
Published: September 2023

Purpose
Works procurement performance is critical to successful project delivery. However, early supplier involvement (ESI) has been touted in other industries to impact procurement performance positively. Works procurement has been attracting significant attention from major players due to poor performance characterized by poor performance, budget overruns and incompetence. Hence, the purpose of this study was to assess the impact of ESI on public works procurement performance.

Design/methodology/approach
Based on a thorough review of the literature for a pilot survey, the main questionnaires were administered to 103 public procurement officers. To assess the impact of ESI on public works procurement performance, three constructs that served as factors for implementing ESI and five that measure works procurement performance were validated using partial least square structural equation modelling (PLS-SEM).

Findings
The outcome of this study shows a significant positive impact of ESI on works procurement performance. This included communication, trust and supplier capabilities. The study further showed that even though cost, schedule, quality, health and safety are essential, sustainability measures are also crucial for work procurement.

Research limitations/implications
The results of this study could help firms make better decisions regarding public works procurement by encouraging ESI. This will likely significantly impact the successful project delivery and preservation of sustainability and efficiency objectives.

Originality/value
The application of PLS-SEM analysis in this study provides insights into how ESI can impact the procurement of public works in Ghana.
“From the lease’s point of view”: the role of tied leases in shaping the UK pub sector
Authors: Meers Jed 
Published: September 2023

Purpose
Much like their residential counterparts, commercial leases have a reputation problem. Although often derided as painfully dull and mundane documents, residential leases have begun to be interrogated by socio-legal scholarship with renewed interest. This paper aims to continue this line of work in the commercial context through a detailed examination of a widespread form of leasehold in the pub sector: the “tied lease”.

Design/methodology/approach
The paper draws on interviews with 14 publicans and archival research.

Findings
The author argues that the lease is a decisive actor in determining the balance of power between publicans and pub-owning companies and shaping the physical environment of pubs in the UK.

Originality/value
The author’s broader agenda is to argue that socio-legal scholars’ renewed interest in leases should not be confined to the residential context: commercial leases warrant far greater socio-legal scholarly attention.
Low-cycle fatigue life assessment of SAC solder alloy through a FEM-data driven machine learning approach
Authors: Ruiz-Jacinto Vicente-Segundo , Gutiérrez-Valverde Karina-Silvana , Aslla-Quispe Abrahan-Pablo , Burga-Falla José-Manuel , Alarcón-Sucasaca Aldo , Huamán-Romaní Yersi-Luis 
Published: September 2023

Purpose
This paper aims to present the novel stacked machine learning approach (SMLA) to estimate low-cycle fatigue (LCF) life of SAC305 solder across structural parts. Using the finite element simulation (FEM) and continuous damage mechanics (CDM) model, a fatigue life database is built. The stacked machine learning (ML) model's iterative optimization during training enables precise fatigue predictions (2.41% root mean square error [RMSE], R2 = 0.975) for diverse structural components. Outliers are found in regression analysis, indicating potential overestimation for thickness transition specimens with extended lifetimes and underestimation for open-hole specimens. Correlations between fatigue life, stress factors, nominal stress and temperature are unveiled, enriching comprehension of LCF, thus enhancing solder behavior predictions.

Design/methodology/approach
This paper introduces stacked ML as a novel approach for estimating LCF life of SAC305 solder in various structural parts. It builds a fatigue life database using FEM and CDM model. The stacked ML model iteratively optimizes its structure, yielding accurate fatigue predictions (2.41% RMSE, R2 = 0.975). Outliers are observed: overestimation for thickness transition specimens and underestimation for open-hole ones. Correlations between fatigue life, stress factors, nominal stress and temperature enhance predictions, deepening understanding of solder behavior.

Findings
The findings of this paper highlight the successful application of the SMLA in accurately estimating the LCF life of SAC305 solder across diverse structural components. The stacked ML model, trained iteratively, demonstrates its effectiveness by producing precise fatigue lifetime predictions with a RMSE of 2.41% and an “R2” value of 0.975. The study also identifies distinct outlier behaviors associated with different structural parts: overestimations for thickness transition specimens with extended fatigue lifetimes and underestimations for open-hole specimens. The research further establishes correlations between fatigue life, stress concentration factors, nominal stress and temperature, enriching the understanding of solder behavior prediction.

Originality/value
The authors confirm the originality of this paper.
The consequences of firm scope and scale on patient access to healthcare
Authors: Meille Giacomo , Koch Thomas , Wendling Brett , Zuvekas Samuel 
Published: September 2023

AbstractObjectiveThe aim was to quantify changes in the market structure of primary care physicians and examine its relationship with access to care.Data Sources and Study SettingWe created measures of market structure from a 5% sample of Medicare fee‐for‐service claims and examined access to care using nationally representative data from the Medical Expenditure Panel Survey (MEPS). Our study spanned from 2008 to 2019.Study DesignWe used a linear probability model to estimate the relationship between access to care and two measures of market structure: concentration, measured by the Herfindahl–Hirschman Index (HHI), and vertical integration, measured by the market share of multispecialty firms. Our model controlled for year and ZIP code fixed effects, respondents' demographics and health status, and other measures of market structure.Data Collection/Extraction MethodsAll adult respondents in the MEPS were included.Principal FindingsThe percentage of people living in concentrated ZIP codes (HHI above 1500) increased from 37% in 2008 to 53% in 2019. During the same period, the median market share of multispecialty firms rose from 30% to 48%. Respondents in highly concentrated ZIP codes (HHI over 2500) were 5.9 percentage points (95% CI: −1.4 to −10.4) less likely to report having access to immediate care than respondents in unconcentrated ZIP codes. The association was largest among Medicaid beneficiaries, a 17.3 percentage point reduction (95% CI: −5.1 to −29.4). When we applied a model that was robust to biases from treatments with staggered timing, the estimated association remained negative but was not statistically significant. We found no association between HHI and indicators for having a usual source of care and annual checkups. The multispecialty market share was negatively associated with checkups, but not other measures of access.ConclusionsIncreases in concentration may reduce some types of access to healthcare. These effects appear most pronounced among Medicaid beneficiaries.
Insights into the intestinal toxicity of foodborne mycotoxins through gut microbiota: A comprehensive review
Authors: Ruan Haonan , Huang Ying , Yue Binyang , Zhang Yuanyuan , Lv Jianxin , Miao Kun , Zhang Dan , Luo Jiaoyang , Yang Meihua 
Published: September 2023

AbstractMycotoxins, which are fungal metabolites, pose a significant global food safety concern by extensively contaminating food and feed, thereby seriously threatening public health and economic development. Many foodborne mycotoxins exhibit potent intestinal toxicity. However, the mechanisms underlying mycotoxin‐induced intestinal toxicity are diverse and complex, and effective prevention or treatment methods for this condition have not yet been established in clinical and animal husbandry practices. In recent years, there has been increasing attention to the role of gut microbiota in the occurrence and development of intestinal diseases. Hence, this review aims to provide a comprehensive summary of the intestinal toxicity mechanisms of six common foodborne mycotoxins. It also explores novel toxicity mechanisms through the “key gut microbiota–key metabolites–key targets” axis, utilizing multiomics and precision toxicology studies with a specific focus on gut microbiota. Additionally, we examine the potential beneficial effects of probiotic supplementation on mycotoxin‐induced toxicity based on initial gut microbiota‐mediated mycotoxicity. This review offers a systematic description of how mycotoxins impact gut microbiota, metabolites, and genes or proteins, providing valuable insights for subsequent toxicity studies of mycotoxins. Furthermore, it lays a theoretical foundation for preventing and treating intestinal toxicity caused by mycotoxins and advancing food safety practices.
How workplace identities and team management practices affect distributed team auditors' willingness to speak up
Authors: Proell Chad A. , Ricci Michael A. , Trotman Ken T. , Zhou Yuepin (Daniel) 
Published: September 2023

AbstractDistributed, rather than co‐located, teams increasingly perform audit work, raising regulator concerns that distributed team communication issues may affect audit quality. We investigate upward communication (i.e., raising issues to supervisors), a key communication dimension related to audit quality. In Study 1, we survey 69 senior auditors to establish that distributed team upward communication suffers. Furthermore, distributed team auditors identify less with their teams and struggle to know when and how to speak up. Because both are linked to inhibited upward communication, we next experimentally test firm practices with the potential to attenuate these problems. Study 2, an experiment with 128 staff auditors and interns, reveals that making auditors' professional identities salient improves upward communication on co‐located teams with strong team identities but not on distributed teams with weak team identities. Study 3, an experiment with 58 staff auditors, replicates a key Study 2 finding with a design that makes no reference to team identity strength. Specifically, in the presence of a salient professional identity, upward communication is significantly higher for co‐located relative to distributed team auditors. Study 4, an experiment with 69 staff auditors, focuses solely on distributed teams. It indicates that several distributed team management practices, including one‐on‐one and standing daily meetings, encourage upward communication. Finally, Study 5, informal interviews with eight audit seniors, corroborates key survey and experimental findings. Combined, our results provide insights into why distributed team communication suffers, refine audit voice theory, and provide regulators, practitioners, and researchers with multiple paths to improve audit quality.
A theoretical framework for upscaling species distribution models
Authors: Meynard Christine N. , Piou Cyril , Kaplan David M. 
Published: September 2023

AbstractSpecies distribution models (SDM) have become one of the most popular predictive tools in ecology. With the advent of new computation and remote sensing technology, high‐resolution environmental data sets are becoming more and more common predictors in these modelling efforts. Understanding how scaling affects their outputs is therefore fundamental to understand their applicability.Here, we develop a theoretical basis to understand the consequences of aggregating occurrence and environmental data at different resolutions. We provide a theoretical framework, along with numerical simulations and a real‐world case study, to show how these scaling rules influence predictive outputs.We show that the properties of the environment–occurrence relationships change when the data are aggregated: the mean probability of occurrence and species prevalence increases, the optimal environmental values shift and classification rates increase at coarser resolutions up to a certain level. Furthermore, and contrary to the widespread expectation that high‐resolution data would produce better predictions, we show here that model performance may increase using coarser resolution data sets rather than the inverse. Finally, we also show that model performance depends not only on the environment–occurrence relationship but also on the interaction between this and the geography and distribution of the available environment.This theoretical framework helps understanding previously incoherent results regarding SDM upscaling and model performance, and illustrates how theoretical and empirical results can provide important feedbacks to advance in understanding scaling issues in macroecology. The interaction between the shape of the environment–occurrence relationship and the rates of change of the environment is fundamental to understand the effects of upscaling in model performance, and may explain why some models are more difficult to transfer to different regions. Most importantly, we argue that there are conceptual choices related to scaling and SDM fitting that require expert knowledge and further explorations between theory and practice in macroecology.
PROSPECT methodology for developing procedure‐specific pain management recommendations: an update
Authors: Joshi G. P. , Albrecht E. , Van de Velde M. , Kehlet H. , Lobo D. N. ,   the PROSPECT Working Group of the European Society of Regional Anaesthesia and Pain Therapy
Published: September 2023

SummaryThe procedure‐specific postoperative pain management (PROSPECT) working group develops evidence‐based pain management recommendations. PROSPECT methodology is unique and rigorous. However, several limitations were recognised that needed to be addressed, and several new factors were identified that improved PROSPECT methodology. The aim of this article is to present updated PROSPECT methodology for development of recommendations for procedure‐specific pain management, focusing on the methodological revisions we will implement. In future, included randomised clinical trials will need to be prospectively registered on a publicly accessible clinical trials database and the study design, including the primary outcome in the registration, should coincide with that in the published manuscript. Placebo‐controlled studies in which the analgesic intervention of interest is solely paracetamol, non‐steroidal anti‐inflammatory drugs, cyclo‐oxygenase‐2‐specific inhibitors or opioids will not be included. Studies comparing one drug in a particular class with another in the same class will also not be included. Future projects will use the Cochrane Collaboration risk of bias tool for quality of reporting of methodology and results. A modified Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) approach will be used for grading of level of evidence and strength of recommendations. Finally, the updated PROSPECT methodology addresses several other limitations and implements new factors that all add rigour and transparency to developing procedure‐specific pain management recommendations.
Market reactions to the Business Roundtable August 19, 2019 announcement on the Purpose of a Corporation
Authors: Janney Jay , Chaudhuri Malika 
Published: September 2023

AbstractThe Business Roundtable's “Purpose of a Corporation” letter announced a shift from stockholder primacy to stakeholder primacy. Interestingly, we contend the letter's language employed a technical efficiency emphasis, suggesting a firm's executives chose to make this shift because they believed doing so would improve the firm's financial performance, via improved corporate governance. We examine whether investors actually accepted the technical efficiency arguments at face value, or in contrast believed the announcements were merely a “rational myth,” what management thought investors would want to hear. We employ a 2‐day cumulative abnormal return (CAR) event study for 140 publicly‐held firms. Overall, we find investor support for the announcement. In addition, we found how returns to firms with prior similar announcements were negative at the time of the announcement. Also, the returns for firms having multiple signatories were positive and significant.
Immune thrombotic thrombocytopenic purpura in patients over 60 years of age: Diagnostic pitfalls and treatment strategy
Authors: Lester Will 
Published: September 2023

Real‐world registry studies of older patients with iTTP highlight diagnostic difficulties in comparison to patients less than 60 years of age with greater risk of renal injury, atypical neurological features and less profound cytopenia, which can result in diagnostic delays. However, there is no clear signal of significantly increased toxicity from full active treatment.Commentary on: Gómez‐Seguí et al. Immune thrombotic thrombocytopenic purpura in older patients: results from the Spanish TTP Registry (REPTT). Br J Haematol 2023;203:860–871.
Girls engaging in activism to end child marriage in Sierra Leone: Negotiating power, interacting with others and redefining their own lives
Authors: Cuevas‐Parra Patricio , Zhu Yan 
Published: September 2023

AbstractChildren's right to participate has been one of the most challenging rights to implement due to dominant norms which position children under adults' authority. Notably, this has more negatively impacted girls than boys due to traditional gender norms and practices that often restrict girls' agency and are reproduced and unchallenged in many societies. To contest these struggles, young female activists (13–17 years) in Sierra Leone, who are the focus of this paper, engaged in direct actions to influence public decision‐making and prevent girls from being married during childhood. Drawing upon empirical evidence exploring the girls' activism experiences, this article explore, young female activists' practical work is an example of what intersectionality as praxis means by connecting social categories to inequalities and highlights that they saw themselves as social actors with the ability to negotiate power, take part in community‐based activism to end child marriage and network with others to seek justice for practices and attitudes they perceived to be abusive.
The transalveolar approach with the small segmentation method for inclined maxillary sinus floor elevation: A retrospective study
Authors: Zhuang Xianxian , Lin Jiating , Dong Hao , Wen Yin , Xian Ruoting , Cheng Lu , Wu Jingyi , Li Shaobing 
Published: September 2023

AbstractObjectiveTo evaluate the clinical outcome of the transalveolar approach with the small segmentation method for inclined maxillary sinus floor elevation.MethodsSixty‐one patients with an inclined maxillary sinus floor (tilt angle ≥ 10°) and insufficient residual bone height in the posterior maxilla were included and grouped according to the tilt angle of the sinus floor, with group A having patients with the tilt angle ≥ 10° and ≤ 30° and group B having patients with the tilt angle > 30°. After completing sinus membrane elevation and bone augmentation using bone substitute materials, the implants were inserted at the same appointment, and the restoration was completed after 5–6 months of osseointegration. The preoperative sinus floor level and sinus floor elevation achieved postoperatively were assessed and recorded. At pre‐ and post‐operative timepoints, the sagittal plane of the cone beam computed tomography was used to evaluate the bone height changes at the peak, middle and valley points in the slope segment intended for implant implantation.ResultsOsseointegration was evident in all 61 patients, and the final restoration was completed with functional loading. After assessing the normality and homogeneity of variance, two‐sample t‐test or nonparametric tests were employed to estimate the differences in the bone height changes. The degrees of freedom (df) for this analysis were 59. The elevation attained at the middle point in groups A and B were 6.71 ± 1.38 and 5.75 ± 1.56 mm, respectively, demonstrating a significant difference (p < 0.05). Furthermore, at the peak and valley points, group A exhibited bone height changes of 5.79 ± 1.74 and 6.06 ± 1.45 mm, respectively, compared to group B with changes measuring 4.63 ± 2.18 and 5.58 ± 2.39 mm, respectively, with no significant difference in the two groups (p ≥ 0.05). The prevalence of intraoperative sinus membrane perforation was assessed using the chi‐square test. It was found that four cases in group A and five cases in group B experienced sinus membrane perforation, with no significant difference in the two groups (p ≥ 0.05, df  = 1).ConclusionThe transalveolar approach using the small segmentation method suggests a promising approach for elevating the inclined maxillary sinus floor.