bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fractal contact resistance model of wind pitch slip ring considering wear and self-excited vibration
Authors: Zhang Minglang , Zuo Xue , Zhou Yuankai 
Published: January 2024

Purpose
The purpose of this paper is to reveal the dynamic contact characteristics of the slip ring. Dynamic contact resistance models considering wear and self-excited were established based on fractal theory.

Design/methodology/approach
The effects of tangential velocity, stiffness and damping coefficient on dynamic contact resistance are studied. The relationships between fractal parameters, wear time and contact parameters are revealed.

Findings
The results show that the total contact area decreases with the friction coefficient and fractal roughness under the same load. Self-excited vibration occurs at a low speed (less than 0.6 m/s). It transforms from stick-slip motion at 0.4 m/s to pure sliding at 0.5 m/s. A high stiffness makes contact resistance fluctuate violently, while increasing the damping coefficient can suppress the self-excited vibration and reduce the dynamic contact resistance. The fractal contact resistance model considering wear is established based on the fractal parameters models. The validity of the model is verified by the wear tests.

Originality/value
The results have a great significance to study the electrical contact behavior of conductive slip ring.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-09-2023-0300/
Unveiling the path to university students' advocacy intention: exploring the intriguing gender moderation
Authors: Abdelmaaboud Abdelhamid K. , Polo Peña Ana Isabel , Mahrous Abeer A. 
Published: January 2024

PurposeThis study introduces three variables related to brands that have the potential to enhance university students' advocacy intentions. The research explores how university brand identification, the perceived prestige of the university brand and the social benefits associated with the university brand impact students' advocacy intentions. Additionally, the study examines the moderating role of gender in these relationships.Design/methodology/approachCross-sectional surveys of 326 undergraduate students enrolled in a Spanish university, and structural equation modeling was used to test and validate the conceptual model.FindingsThe findings from the structural equation modeling indicate that university brand identification, perceived university brand prestige and university brand social benefits significantly influence students' advocacy intentions. Furthermore, the multigroup analysis reveals a gender difference in the factors influencing advocacy intentions. Female students demonstrate significance in all three antecedents, whereas male students only show significance in university brand identification and perceived university brand prestige.Practical implicationsThe current study's findings provide several insights for higher education institutions in developing enduring and committed relationships with their students.Originality/valueThis study offers relevant insights into the body of research on university branding, explaining the students' advocacy intentions through the variables of university brand identification, perceived university brand prestige and university brand social benefits. Also, this study is a novelty in introducing empirical evidence for the importance of the moderating role of students' gender.
How to manage sustainability in healthcare organizations? A processing map to include the ESG strategy
Authors: Bosco Federica , Di Gerio Chiara , Fiorani Gloria , Stola Giulia 
Published: January 2024

Purpose This paper aims to identify the key issues that healthcare knowledge-intensive organizations (KIPOs) should focus on to define themselves as socioenvironmentally and governance responsible for integrating environmental, social, and governance (ESG) logic into their business strategy. At the same time, this provides an understanding of how healthcare KIPOs contribute to achieving the Sustainable Development Goals of the 2030 Agenda.Design/methodology/approach Taking a cue from the model developed by the World Economic Forum, an “ESG Processing Map” was constructed to identify qualitative disclosures that a healthcare company should consider when implementing sustainability logic. The aspects investigated were processed, considering national and international standards, frameworks and disclosures. The social network analysis technique was used to systemize and combine the outcomes of these processes and analyze their consistency with sustainable development.Findings Through the “ESG Processing Map,” 13 areas of action and 27 topics specific to the health sector were defined on which to intervene in sustainability in order to concretely help HCOs to place specific corrective and improvement actions over time concerning socioenvironmental and governance aspects.Originality/value The paper provides contribute, on the one hand, to enriching and updating the academic literature on ESG logic in a still underexplored field and, on the other hand, to provide these types of organizations with a “compass” to guide and orient their business strategies towards sustainability.
Stakeholder value creation system: understanding the process
Authors: De Tommaso Silvia Ferraz Nogueira , Borini Felipe Mendes 
Published: January 2024

Purpose
Understanding how firms manage multiple stakeholders is an academic and business call. This paper aims to describe a firm’s processes to implement a stakeholder value creation system, defined as the firm’s processes to create appropriate value with multiple stakeholders.

Design/methodology/approach
The authors based their investigation on a conceptual framework extracted from a previous literature review. From there, the authors conducted qualitative empirical research designed as a multiple-case study. In-depth interviews with 47 people from 11 different firms are the key source of this study.

Findings
This paper proposes a framework demonstrating how a firm can implement a stakeholder value creation system. Results pointed to three processes: value creation, distribution and capture. Value distribution mechanisms are drivers for both value creation and capture processes. The system is a set of multiple flow relationships between the firm and its stakeholders.

Research limitations/implications
This research is limited to the Brazilian context.

Practical implications
The stakeholder value creation system is composed of seven elements: walk-the-talk organizational behavior, stakeholder business model, societal non-attended need, stakeholder preference matrix, stakeholder bargaining power, retention of rents and governance mechanism. Managers may design their firm’s unique processes using these elements as drivers.

Social implications
The present investigation demonstrates that societal issues matter for firms to formulate strategies that positively impact their economic, social and environmental results.

Originality/value
The authors investigated competitive strategy concepts of value creation and appropriation from a combination of resource-based and stakeholder theories and a system perspective. The framework of this study consolidated both theories’ ideas from a complementary perspective. The authors suggest managers and academics should adopt the power of the “AND” position instead of the “OR” trade-off position.
Exploring the influence of ChatGPT on tourism behavior using the technology acceptance model
Authors: Solomovich Lior , Abraham Villy 
Published: January 2024

Purpose
The present study’s aims are twofold: 1) to contribute to theory development by accounting for both personality and trust in the conceptualization of technology acceptance using the technology acceptance model (TAM) as the theoretical framework; and 2) to explore the influence of ChatGPT-integrated chatbots on tourism behavior.

Design/methodology/approach
The target population for this study was travelers who previously used technology (website/ app) to plan their holiday abroad. An online survey questionnaire created with Google Forms was distributed via a panel company (iPanel). A screening question was included to filter out respondents who have not previously used technological means to plan their holiday abroad. A panel company (iPanel) was hired to collect data from a convenience sample of 305 Israeli tourists who met the above criterion between August 22 and 27, 2023, and were at least 18.

Findings
A significant and positive relationship was observed between trust in ChaptGPT and perceived usefulness. Furthermore, a significant and positive association was observed between perceived ease of use and intentions to use ChatGPT-integrated chatbots to plan future holidays. Post hoc analyses suggest that perceived ease of use mediates the relationship between extraversion and trust, trust mediates the relationship between perceived ease of use and perceived usefulness and age moderates the relationship between perceived ease of use and behavioral intentions.

Research limitations/implications
Data was collected from a convenience sample of Israeli travelers. Hence, generalizations to other countries, nationalities and cultures should be treated carefully; the study is cross-sectional and thus represents respondents’ beliefs and behavioral intentions at a particular time; and the study is based on one of several theoretical frameworks that can be used to conceptualize behaviors associated with using AI by tourists.

Practical implications
The findings of the present study point to the importance of accounting for tourists’ personal factors, such as personality and age, in developing AI products in the tourism industry. chief executive officers and relevant shareholders would benefit from conducting market research to obtain insights into the factors that may enhance or hamper tourists’ adoption of AI-based technology for planning their holidays abroad.

Originality/value
Previous work falls short of accounting for personality traits and trust in a single model using the TAM framework. To the best of the authors’ knowledge, this is the first study empirically investigating tourism behavior related to ChatGPT based chatbots as a tool to plan future holidays abroad. Furthermore, the possible role of age as a moderating variable was overlooked in past research.
Correlates of life course physical activity in participants of the Baltimore longitudinal study of aging
Authors: Moore Ann Zenobia , Simonsick Eleanor M. , Landman Bennett , Schrack Jennifer , Wanigatunga Amal A. , Ferrucci Luigi 
Published: January 2024

AbstractPhysical activity is consistently associated with better health and longer life spans. However, the extent to which length and intensity of exercise across the life course impact health outcomes relative to current activity is undefined. Participants of the Baltimore Longitudinal Study of Aging were asked to categorize their level of physical activity in each decade of life from adolescence to the current decade. In linear mixed effects models, self‐reported past levels of physical activity were significantly associated with activity assessed at study visits in the corresponding decade of life either by questionnaire or accelerometry. A pattern of life course physical activity (LCPA) derived by ranking participants on reported activity intensity across multiple decades was consistent with the trajectories of activity estimated from standard physical activity questionnaires assessed at prior study visits. In multivariable linear regression models LCPA was associated with clinical characteristics, measures of body composition and indicators of physical performance independent of current physical activity. After adjustment for minutes of high intensity exercise, LCPA remained significantly associated with peak VO2, fasting glucose, thigh muscle area and density, abdominal subcutaneous fat, usual gait speed, lower extremity performance, and multimorbidity (all p < 0.01) at the index visit. The observed associations suggest that an estimate of physical activity across decades provides complementary information to information on current activity and reemphasizes the importance of consistently engaging in physical activity over the life course.
Distinct clinical parameters were associated with shorter spontaneous resolution in children with non‐tuberculous mycobacterial lymphadenitis
Authors: Jensen Frederikke Nonboe , Nielsen Allan Bybeck , Dungu Kia Hee Schultz , Poulsen Anja , Schmidt Grethe , Hjuler Thomas , Zhang He , Vissing Nadja Hawwa , Nygaard Ulrikka 
Published: January 2024

AbstractAimNon‐tuberculous mycobacteria (NTM) lymphadenitis typically resolves spontaneously, yet factors influencing the duration remain explored. We aimed to identify clinical parameters associated with shorter spontaneous resolution.MethodsThis cohort study included children with NTM lymphadenitis from 1 January 2015 to 1 March 2021 at Copenhagen University Hospital. Time‐to‐event analysis assessed clinical parameters associated with the duration of NTM lymphadenitis.ResultsSixty children (57% boys) with a median age of 24 months (range 11–84) were included; 13 (22%) received primary surgery, 13 (22%) underwent surgery after a wait‐and‐see period and 34 (57%) received no intervention. In children without intervention, the median duration was 10 months (range 2–25). Faster resolution was associated with parental‐reported lymph node enlargement within 2 weeks (HR 2.3, 95% CI 1.0–5.0; p = 0.044), abscess on ultrasound examination (HR 3.3, 95% CI 1.5–7.3; p = 0.003) and skin discoloration and/or perforation within 3 months of onset (HR 4.3, 95% CI 1.3–14.4; p = 0.017 and HR 3.7, 95% CI 1.5–9.1; p = 0.005).ConclusionKnowledge of predictors for shorter spontaneous resolution of NTM lymphadenitis, such as rapid initial lymph node enlargement, abscess on ultrasound examination, and skin discoloration and/or perforation within 3 months of disease onset, may guide clinical management decisions concerning surgery versus a conservative approach.
Gas chromatography–mass spectrometry‐based quantitative method using tert‐butyldimethylsilyl derivatization for plasma levels of free amino acids and related metabolites in Japanese Black cattle
Authors: Do Hanwool , Yoshida Emi , Masaki Tatsunori , Oosaki Shigeru , Sakase Mitsuhiro , Iwamoto Eiji , Tomonaga Shozo 
Published: January 2024

AbstractThe quantification of amino acid and related metabolite levels is important for evaluating amino acid metabolism and function in animals. However, a useful quantitative method is not enough. In this study, we developed and validated tert‐butyldimethylsilyl derivatization method using gas chromatography–mass spectrometry to quantify plasma levels of free amino acids and related metabolites in Japanese Black cattle. Of the 51 metabolites examined, 24, including 20 amino acids, one amine, and three keto acids, could be quantified. Compared with the trimethylsilyl derivatization method using gas chromatography–mass spectrometry, which has been used for untargeted metabolomic analysis, the present method had higher analytical reliability. This method is advantageous for assessing branched‐chain amino acid (BCAA) metabolism because it enables the quantification of not only BCAA levels (valine, leucine, and isoleucine) but also their bioactive metabolite keto acid levels (2‐ketoisovaleric acid, 2‐ketoisocaproic acid, and 2‐keto‐3‐methylvaleric acid) in the plasma. In addition, this method can quantify the plasma levels of not only tryptophan but also its bioactive metabolites kynurenine and serotonin. These results suggest that this quantitative method has the potential to further our understanding of amino acid metabolic processes and their functions in Japanese Black cattle.
Preserving the placebo effect after disclosure: A new perspective on non‐deceptive placebos
Authors: Emadi Andani Mehran , Barbiani Diletta , Bonetto Marco , Menegaldo Rudy , Villa‐Sánchez Bernardo , Fiorio Mirta 
Published: January 2024

AbstractThe present study explores whether a particular style of placebo disclosure could serve as a tool to foster a renewed trust in one's own inherent resources and elicit a meaningful placebo effect. In a motor performance task, two placebo groups received inert transcutaneous electrical nerve stimulation (TENS) in each of four sessions along with information on its force‐enhancing properties. Before the final session, one of the placebo groups was informed about the placebo, which was portrayed as a means to unleash an inherent potential. Along with force, we systematically monitored task‐specific self‐efficacy to test whether this variable would be differentially modulated in the two placebo groups. Compared to two control groups, placebo groups showed higher force and self‐efficacy in the last session. No differences in self‐efficacy were observed in the placebo groups even after revealing the placebo procedure, suggesting that the disclosure was effective in ‘safeguarding’ individuals' self‐efficacy. These findings may have important implications, paving the way for the use of placebos that not only are ethically permissible but also support individuals' self‐efficacy.
Altered tumor signature and T‐cell profile after chemotherapy reveal new therapeutic opportunities in high‐grade serous ovarian carcinoma
Authors: Kang Huiram , Hwang Sohyun , Kang Haeyoun , Jo Areum , Lee Ji Min , Choi Jung Kyoon , An Hee Jung , Lee Hae‐Ock 
Published: January 2024

AbstractChemotherapy combined with debulking surgery is the standard treatment protocol for high‐grade serous ovarian carcinoma (HGSOC). Nonetheless, a significant number of patients encounter relapse due to the development of chemotherapy resistance. To better understand and address this resistance, we conducted a comprehensive study investigating the transcriptional alterations at the single‐cell resolution in tissue samples from patients with HGSOC, using single‐cell RNA sequencing and T‐cell receptor sequencing techniques. Our analyses unveiled notable changes in the tumor signatures after chemotherapy, including those associated with epithelial–mesenchymal transition and cell cycle arrest. Within the immune compartment, we observed alterations in the T‐cell profiles, characterized by naïve or pre‐exhausted populations following chemotherapy. This phenotypic change was further supported by the examination of adjoining T‐cell receptor clonotypes in paired longitudinal samples. These findings underscore the profound impact of chemotherapy on reshaping the tumor landscape and the immune microenvironment. This knowledge may provide clues for the development of future therapeutic strategies to combat treatment resistance in HGSOC.
Three hundred years of past and future changes for native fish species in the upper Danube River Basin—Historical flow alterations versus future climate change
Authors: Friedrichs‐Manthey Martin , Langhans Simone D. , Borgwardt Florian , Hein Thomas , Kling Harald , Stanzel Philipp , Jähnig Sonja C. , Domisch Sami 
Published: January 2024

AbstractAimRivers belong to the most threatened ecosystems on Earth. Historical anthropogenic alterations have, and future climate change will further affect rivers and the species therein. While many studies have projected climate change effects on species, little is known about the severity of these changes compared to historical alterations. Here, we used a unique 300‐year time series of hydrological and climate data to explore the vulnerability of 48 native fish species in the upper Danube River Basin to past and potential future environmental changes.LocationUpper Danube River Basins (Germany and Austria).MethodsWe applied a climate niche factor analysis and calculated species‐specific vulnerability estimates based on modelled and observed hydrological and climate data from 1800 to 2100. We compared the estimated species vulnerabilities between two historical time intervals (1800–1830 and 1900–1930) and a future time interval (2070–2100, including the two representative concentration pathways 4.5 and 8.5) to an observed reference time interval (1970–2000). In addition, we identified the main environmental drivers of species vulnerability and their change over the past 200 years and for the predicted 100 years in the future.ResultsOur results showed that (i) in the past, species vulnerability was mainly driven by changes in discharge, while (ii) future potential vulnerabilities would be due to temperature. Moreover, we found that (iii) future environmental conditions for riverine fish species driven by temperature would change at a similar magnitude as past hydrological changes, driven by anthropogenic river alterations. Future changes, projected for the RCP 4.5, would result in moderate species vulnerability, whereas for the RCP 8.5, the vulnerability for all species would substantially increase compared to the historical conditions.Main ConclusionAccounting for an extended timeline uncovers the extent of historical pressures and provides unprecedented opportunities to proactively plan conservation strategies that are necessary to address future challenges.
The sodium–chloride difference: A marker of prognosis in patients with acute myocardial infarction
Authors: Terlecki Michał , Kocowska‐Trytko Maryla , Kurzyca Aleksandra , Pavlinec Christopher , Zając Maciej , Rusinek Jakub , Lis Paweł , Bednarski Adam , Wojciechowska Wiktoria , Stolarz‐Skrzypek Katarzyna , Rajzer Marek 
Published: January 2024

AbstractBackgroundThe difference between serum sodium and chloride ion concentrations (SCD) may be considered as a surrogate of a strong ion difference and may help to identify patients with a worse prognosis. We aimed to assess SCD as an early prognostic marker among patients with myocardial infarction.MethodsData of 594 consecutive patients with acute myocardial infarction treated with PCI (44.9% STEMI patients; 70.7% males) was analysed for SCD in relation to their 30‐day mortality. A restricted cubic spline regression model was used to study the relationship between mortality and SCD. Cox regression models were used to assess the association between SCD and the mortality risk.ResultsPatients with Killip class ≥3 had lower SCD values in comparison to patients with Killip class ≤2: (32.0 [30.0–34.0] vs. 33.0 [31.0–36.0], p = .006). The overall 30‐day mortality was 7.7% (n = 46). There was a significant difference in SCD values between survivors and non‐survivors groups of patients (median (IQR): (33.0 [31.0–36.0] vs. 31.5 [28.0–34.0] (mmol/L), p = .002). The restricted cubic splines model confirmed a non‐linear association between SCD and mortality. Patients with SCD <30 mmol/L (in comparison to SCD ≥30 mmol/L) had an increased mortality risk (unadjusted HR 2.92, 95% CI 1.59–5.36, p = .001; and an adjusted HR 2.30, 95% CI 1.02–5.19, p = .04).ConclusionsLow SCD on admission is associated with an increased risk of 30‐day mortality in patients with acute myocardial infarction treated with PCI and may serve as a useful prognostic marker for these patients.
First report of Cryphonectria carpinicola in Hungary and Slovakia (Central Europe)
Authors: Papp Viktor , Palla Balázs , Papp Dávid , Németh Csaba 
Published: January 2024

AbstractHornbeam (Carpinus betulus) is an economically significant tree species, serving as a valuable resource for timber and ornamental wood products. It plays a crucial ecological role within forest communities and exhibits wide distribution across Central Europe. During October 2022 and March 2023, we encountered instances of declining hornbeam trees in Hungary and Slovakia. In both cases, characteristic symptoms associated with Cryphonectria canker were observed. Subsequent morphological and molecular‐genetic analyses of fungal samples and isolates confirmed their identification as the recently described species Cryphonectria carpinicola. This study represents the first documented report of this pathogen in Hungary and Slovakia, contributing to our understanding of its presence and impact in Central Europe.