bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance comparison of cloud virtual machines
Authors: Zboril Martin , Svatá Vlasta 
Published: January 2025

Purpose
The performance of virtual machines (VMs) has an important role in the overall effectiveness of deployed IT solutions. Many organizations leverage VMs which run in a cloud environment instead of traditional on-premises machines. It is therefore important to select the most suitable cloud provider according to the performance of the VM. This study aims to compare the performance of VMs running under Microsoft, Amazon and Google, the three largest available cloud service providers who offer Infrastructure-as-a-Service.

Design/methodology/approach
Linux Ubuntu 20.04 LTS distribution was deployed as the reference operating system and comparisons were accomplished with the Phoronix Test Suite, which offers hundreds of benchmarking tests. For the aims of the study, 13 relevant tests covering the major areas of VMs were selected.

Findings
The study’s analysis revealed that the VM running at Amazon Web Services (AWS) exceeded the performance of machines at Microsoft Azure and Google Cloud Platform (GCP). The study’s comparison showed that the AWS platform achieved a final score 87% and Microsoft Azure and GCP both achieved 77%.

Originality/value
The performance of the VM is a factor that organizations might consider when they select a suitable cloud provider. This study provides an insight into high-performance cloud VMs and the methods of comparing their performance. The study delivers a significant contribution in comparing the performance of publicly accessible cloud VMs since no studies to date have been published on this topic.
Embracing AI in libraries: a strategic approach for India’s evolving library landscape
Authors: Malakar Prafull , Manavalan Leeladharan , Jain Palak , M.S. Sarin 
Published: January 2025

Purpose
The information science community, including library science, has been a focus of significant discussions and research due to recent progress in artificial intelligence (AI), especially in large language models. This study identifies possible areas for application of AI in library routines and how it can enhance library operations, such as circulation, acquisitions, reference services, serials, digital resources and technical services.

Design/methodology/approach
This research methodically examines how libraries adjust to swift technological changes, with an emphasis on AI, generative language models like GPT, and the integration of Chatbots.

Findings
This study outlines strategies to increase library engagement amidst a technologically evolving landscape, highlighting the significance of aligning such innovations with the requirements of users and library missions. The findings offer crucial considerations for libraries in India contemplating AI integration, especially in relation to technological infrastructure, librarian expertise in AI and the establishment of leadership roles to oversee AI initiatives.

Social implications
This research provides a foundation for library boards and associations to shape informed policies supporting AI in academic libraries. As such, it plays a vital role in advancing the adoption of AI within the global library community.

Originality/value
The library and information science (LIS) field is increasingly drawing interest from researchers and experts regarding the use of AI. This study covers the incorporation of AI in different library sections and positively impacts the LIS professionals in these advanced endeavours.
Diffusion of innovations: still a relevant theory for studying library technology in the age of AI?
Authors: Lund Brady 
Published: January 2025

Purpose
This paper aims to examine the relevance of Rogers’ diffusion of innovations theory, with a particular focus on the adopter categories concept, for library technology research in light of rapid changes sparked by the emergence of generative artificial intelligence and other emerging technologies at the dawn of the fourth industrial revolution.

Design/methodology/approach
The applicability of the diffusion of innovation model is critically evaluated, highlighting some discrepancies that exist between the traditional framework and observed behaviors in recent studies. In particular, it appears that many people are more eager adopters of innovations than at any point in the past, perhaps due to the ubiquity of information within the modern media ecosystem.

Findings
The traditional diffusion of innovation adopter categories may fail to capture the adoption patterns of specific populations, such as college students and faculty. Revised survey methodologies reveal the potential for more accurate identification of adopter categories by addressing biases in self-reporting and incorporating practical considerations of innovation usefulness.

Originality/value
This paper proposes refinements to the study of innovation diffusion, particularly in the context of library technology. By adapting the model to better align with modern patterns of technological adoption, it aims to provide a deeper understanding of innovation behaviors in today’s rapidly evolving technological environment.
The post-Covid era: digital leadership, organizational performance and employee motivation
Authors: Palmucci Dario Natale , Giovando Guido , Vincurova Zuzana 
Published: January 2025

PurposeThis qualitative study aims to identify key intervention areas for today’s leaders and the leadership skills necessary to enhance employee motivation in this digitized, post-COVID era.Design/methodology/approachAn inductive qualitative approach with a semi-structured interview-based design has been adopted, inspired by previous studies that aimed to explore and shed light on the object of this study.FindingsFirst, findings refer to actual main areas of intervention and challenges for leaders to drive organizations in the new post-Covid digitalized era. Second, the study also identifies new skills needed to lead businesses and drive employees’ motivation. Third, this work proposes a framework to explain the leadership role in the actual complex reality.Originality/valueDespite the extensive body of research on leadership, current theories fall short in the complex, post-COVID environment marked by instability, constant change and pervasive technology. Thus this research strives to develop an integrated framework to better elucidate the challenges and skills essential for leading businesses in today’s complex reality, with a comprehensive perspective.
Evaluating the effectiveness of green bonds and clean cryptocurrencies as hedging tools in volatile financial environments
Authors: Mnif Emna , Zghidi Nahed , Jarboui Anis 
Published: January 2025

PurposeCryptocurrencies have transformed the financial landscape and raised environmental concerns, particularly distinguishing between energy-intensive (dirty) cryptocurrencies and environmentally friendly (green) cryptocurrencies. This study investigates the role of energy-intensive and ecologically friendly cryptocurrencies in sustainable investments, exploring their potential as hedging tools amid market and geopolitical stresses.Design/methodology/approachEmploying a time-varying parameter vector auto-regression (TVP-VAR) connectedness approach, the research analyzes the interactions and spillover effects among clean and dirty cryptocurrencies, green bonds, and traditional financial assets. It also explores portfolio diversification strategies like minimum variance, correlation and connectedness portfolios, evaluating their risk minimization efficacy while incorporating green financial instruments. Empirical data on daily closing prices and financial indices are used to assess financial interconnectedness and evaluate portfolio diversification strategies.FindingsGreen bonds consistently provide strong hedging capabilities, while clean cryptocurrencies exhibit a more nuanced role influenced by market maturity and regulations. The results underscore the significance of promoting green finance to bolster investments in sustainable projects and enhance risk management strategies for investors. This research enriches the green finance literature by detailing the financial interconnectedness within the market and providing strategic insights for embedding sustainability in investment portfolios against a backdrop of global economic and geopolitical uncertainties.Research limitations/implicationsThe research highlights the importance of green finance in promoting sustainability and reducing environmental impact. It advocates for regulatory frameworks that support sustainable financial instruments, encouraging the development of financial products aligned with environmental goals and fostering a more sustainable economy.Practical implicationsThese research findings provide actionable guidance for investors and policymakers to develop diversified investment strategies incorporating green bonds and clean cryptocurrencies capable of balancing risks and returns. The study also urges policymakers to establish clear guidelines and incentives for green investments, improving transparency and effectiveness in green finance markets.Originality/valueThis study uses an innovative TVP-VAR connectedness approach to examine the interactions and spillover effects among clean and dirty cryptocurrencies, green bonds and traditional financial assets. It provides new insights into the roles of green bonds and clean cryptocurrencies as hedging tools in volatile markets, enhancing the understanding of financial interconnectedness and sustainable investment strategies.
Beyond practicing: understanding the influence of ESG perceptions on employee retention
Authors: Alves Izabelli Rocha , Mesquita Eduardo , Caneppele Nairana Radtke , Martins Fellipe Silva 
Published: January 2025

Purpose
This study aims to investigate how perceived environmental, social and governance (ESG) factors influence employee retention, with a focus on the mediating roles of pride and satisfaction and the moderating role of employees’ pro-environmental behavior.

Design/methodology/approach
Set in Brazil, an emerging market with complex socioeconomic and environmental challenges, this study used survey data from 237 employees. And structural equation modeling was used to analyze the relationships among ESG perceptions, satisfaction, pride and retention.

Findings
The results highlight that ESG perceptions significantly enhance employee retention through increased satisfaction and pride. In addition, employees’ pro-environmental behaviors strengthen the positive relationship between ESG perceptions and retention.

Originality/value
This study provides insights into the intersection of ESG factors and employee behaviors in shaping retention strategies, offering implications for both scholars and practitioners, especially in emerging market contexts like Brazil.
Factors affecting investments in environmental assets by agricultural machinery cooperatives (CUMAs): Evidence from France
Authors: Diakité Daniel , Tamini Lota D. , Cornée Simon , Caillault Sébastien , Rousselière Damien 
Published: January 2025

AbstractAlthough cooperatives are major actors in the transformation of agricultural systems, very little attention has been paid to the conditions that facilitate or hinder their involvement in the sustainable transition. Drawing on theoretical and empirical approaches, we analyze the effect of social capital on the propensity and proportion of investment in environmental assets in the case of agricultural machinery cooperatives (CUMAs) in France. The number of producers within their CUMA is used as a proxy of the bonding social capital and the CUMA's relationships with external organizations as a proxy of the bridging social capital. Our results show a nonmonotonic relationship between the proxies of social capital and investment in environmental assets by CUMAs. However, the effect differs depending on the subdimension of social capital considered. Interestingly, our results show that the effect of social capital within CUMAs remains even when the cooperatives carry out investment renewals that involve less risk for members.
Sulfur dioxide (SO2) donors, a new gasotransmitter, improve erectile dysfunction after castration in a rat model
Authors: Tetik‐Rama Seyma , Yilmaz‐Oral Didem , Turkcan Damla , Oztekin Cetin Volkan , Kirlangic Omer Faruk , Kirlangic Fatma Zeynep , Gur Serap 
Published: January 2025

AbstractBackgroundAndrogen deprivation is associated with erectile dysfunction (ED). In different animal models, sulfur dioxide (SO2) donors Na2SO3 and NaHSO3 reduced oxidative stress, fibrosis, and inflammation which contribute to the pathogenesis of androgen deprivation‐induced ED, however the effect of SO2 donors on ED in castrated rats were not known.ObjectiveTo investigate the therapeutic effect of SO2 donors, Na2SO3/NaHSO3, on ED in castrated rat model.Materials and methodsSprague–Dawley male rats (n = 30) were divided into four groups; control, control‐treated with Na2SO3/NaHSO3, castrated, and castrated‐treated with Na2SO3/NaHSO3. Castration was induced by bilateral scrotal incisions. Four weeks after castration, rats were treated with Na2SO3/NaHSO3 (0.54/0.18 mmol/kg) intraperitoneally (i.p.) for 4 weeks. Intracavernosal pressure/mean arterial pressure ratio (ICP/MAP) and total ICP were measured to evaluate in vivo erectile responses in cavernosal tissue. In vitro relaxant and contractile responses were measured in all groups. Endothelial nitric oxide synthase (eNOS), neuronal NOS (nNOS), PI3 kinase p85 alpha + gamma (PI3K), protein kinase B (AKT 1/2/3), cysteine dioxygenase‐1 (CDO), and aspartate aminotransferase (AAT) expressions and localizations were evaluated by Western blotting and immunohistochemical staining. The smooth muscle/collagen ratio was evaluated by Masson's trichrome staining.ResultsProstate (p < 0.001) and penis weight (p < 0.001), total serum testosterone (T) level (p < 0.001), and in vivo erectile responses (p < 0.001 at 7.5 and 5 V, p < 0.05 at 2.5 V for ICP/MAP and total ICP) of castrated rats were decreased compared with control. SO2 donors improved reduced ICP/MAP ratio and total ICP (p < 0.01 at 7.5, 5, and 2.5 V for ICP/MAP and total ICP) nitrergic (p < 0.05 at 20 Hz), and endothelium‐independent relaxation (p < 0.05 at 1 nM, p < 0.01 at 10 µM and 100 µM) in the castrated group. Decreased eNOS (p < 0.01) and AKT (p < 0.001) protein expressions in the castrated group were normalized by SO2. SO2 donors partially restored the reduced smooth muscle/collagen ratio in the castrated group (p < 0.001). The expressions and locations of nNOS, PI3K, CDO, and AAT proteins in penile tissue did not alter among all groups (p > 0.05).Discussion and conclusionSO2 donors significantly improve erectile functions and relaxation responses in a castrated rats via ameliorating endothelial damage and fibrosis. Androgen deprivation inhibits the AKT/eNOS signaling while SO2 activates this pathway. SO2 donors may be promising for the treatment of ED in hypoandrogenic men.
Safety and efficacy of endovascular embolization combined with external drainage for poor‐grade ruptured cerebral aneurysms
Authors: Chen Shi‐Dun , Yang Cheng‐Bao , Wang Yong‐Xiang , Yin Yue‐Han , Gao Bulang , Chen Chun‐Guang 
Published: January 2025

AbstractPurposeTo investigate the safety and efficacy of endovascular embolization combined with external drainage for poor‐grade ruptured cerebral aneurysms and risk factors.Materials and methodsForty‐six patients with poor‐grade ruptured cerebral aneurysms treated with endovascular embolization combined with decompressive craniectomy and drainage were retrospectively enrolled.ResultsCoil embolization alone was performed in 29 (63.0%) patients, stent‐assisted coiling in 14 (30.4%), and coiling with the assistance of two microcatheters in three (6.5%). Immediately after embolization, aneurysm occlusion degree was Raymond‐Roy grade I in 88% (44/50), II in 8% (4/50), and III in 4% (2/50). Periprocedural complications occurred in four (8.7%) patients. Forty‐two (91.3%) patients had lumbar cistern drainage (n = 29 or 63.0%), extraventricular drainage (n = 11 or 23.9%), or decompressive craniectomy (n = 2 or 4.3%). At discharge, six (13.0%) patients died, and hydrocephalus took place in 16 (34.8%) patients. Better outcomes (mRS 0–2) were achieved in 31 (67.4%), including 23 (50.0%) patients below 60 years and eight (17.4%) over 60 years. Better clinical outcomes were achieved in patients below 60 years and with lumbar cistern drainage, and age was the only significant independent risk factor for better clinical outcomes. Receiver characteristics curve analysis of age for better clinical outcomes revealed that the cutoff value was 61 years, with the AUC 0.73, sensitivity 0.69, and specificity 0.73.ConclusionEndovascular embolization combined with decompressive craniectomy and drainage may be safe and efficient for poor‐grade ruptured cerebral aneurysms, and older age and drainage modality may significantly affect the clinical outcomes.
Nichtinvasive Infrarot‐Thermografie für Screening, Diagnose und Monitoring von Hautkrebs
Authors: Kesztyüs Dorothea , Bae Horim , Wilson Carolyn , Schön Michael P. , Kesztyüs Tibor 
Published: January 2025

ZusammenfassungDie Inzidenzen für Hautkrebs steigen kontinuierlich. Der Zeitpunkt der Diagnose ist entscheidend für das Morbiditäts‐ und Mortalitätsrisiko der Patienten. Ein optimales Screening‐Verfahren muss noch etabliert werden. Berührungslose bildgebende Verfahren sind von höchstem Interesse, jedoch für den großflächigen Einsatz noch nicht ausreichend entwickelt und untersucht. Infrarot‐Thermografie bietet gegenüber digitaler Fotografie die zusätzliche Information der Wärmeabstrahlung der Hautoberfläche, diese korreliert stark mit malignen Veränderungen. Literatur zum aktuellen wissenschaftlichen Stand von Screening, Diagnose und Monitoring von Hautkrebs mittels thermografischer Verfahren wurde in PubMed, Embase und Google Scholar identifiziert. Vom technischen und informationstechnologischen Standpunkt gesehen bietet Infrarot‐Thermografie sehr gute Voraussetzungen für den Einsatz als nichtinvasives, kostengünstiges, zeitsparendes und einfach zu handhabendes Screening‐Instrument. Allerdings fehlt noch belastbare Evidenz und die praktische Umsetzung in massentaugliche 3D‐Systeme. Die dahingehende Forschung sollte intensiviert werden, um anwendbare Systeme zu entwickeln, im großen Stil zu testen und zu etablieren.
Emotions in Constructing Teaching Self‐Image: Mediation Models of Chinese University EFL Teachers’ Anxiety and Self‐Efficacy
Authors: Gong Kaixuan , Liu Meihua , Hu Wenting 
Published: January 2025

ABSTRACTIn the field of foreign language education, teacher psychology was much less researched than students, and university teachers especially received minimal attention as recognized competent language users and instructors. However, they could also experience complex emotions deriving from their demands in advanced‐level language teaching and diverse faculty responsibilities. Meanwhile, the control‐value theory sheds light on the potential mediation of teachers’ self‐efficacy beliefs for different anxiety types. Through a survey investigation among 212 university EFL (English as a foreign language) teachers in China, this study profiled their teaching anxiety, foreign language anxiety, and teaching self‐efficacy after exploratory factor analysis and confirmative factor analysis on these measures. Structural equation modeling was then performed to estimate the mediating effects of teaching self‐efficacy on various anxiety facets. The findings were twofold. Firstly, the teachers reported an overall low anxiety level in teaching and English language use. Secondly, the teachers’ teaching anxiety was positively intercorrelated with their foreign language anxiety and negatively with teaching self‐efficacy. The mediation models showed that teachers’ low self‐efficacy would aggravate their teaching anxiety related to uncertain self‐perceptions of teaching competence and professional identity. Based on these major findings, this paper finally proposed implications for university EFL teachers’ emotional support regarding the construction of a positive teaching self‐image.
A retrospective analysis of cardiovascular outcomes of clozapine treated individuals within Hunter New England
Authors: Sritharan Shanathan , Murray Kindelan , Lam Dominic , Wittaker Daniel , Sverdlov Aaron , Boyle Andrew , Davies Allan , Williams Trent , Collins Nicholas 
Published: January 2025

AbstractBackgroundClozapine has demonstrated superiority in improving both positive and negative symptoms of treatment‐resistant schizophrenia; however, there are associated treatment‐limiting side effects, including myocarditis, cardiomyopathy and agranulocytosis.AimThis retrospective cohort study describes the prevalence of myocarditis, left ventricular (LV) dysfunction, cardiovascular risk factors and outcomes in a cohort of patients maintained on clozapine therapy.MethodsData were retrospectively collated from patients who had a diagnosis of schizophrenia, had been managed with clozapine at any stage during their care and undergone at least one echocardiogram.ResultsBetween March 2020 and September 2021 674 patients were identified, 71% were male, with a mean age of 47 years old (interquartile range (IQR) 40–57). The mean duration of clozapine use was 7 years (IQR 4–13). The overall mortality was 5.54% during the follow‐up period. Myocarditis was identified in one patient (0.15%) within the first 30 days, and an additional five cases were identified over the follow‐up period (0.89%). The combined incidence of heart failure (HF) and myocarditis was 1.6% during the follow‐up period. There was no association between LV size and function at baseline or during follow‐up and adverse cardiac outcomes (comprising death, myocarditis, HF). Older age at initiation of therapy and baseline E/e' ratio were associated with risk of HF and myocarditis.ConclusionThe overall incidence of myocarditis and HF during follow‐up was low, with surveillance echocardiography offering limited predictive value. Patients maintained on clozapine are at risk of significant cardiovascular sequelae, likely reflecting an adverse risk factor profile.