bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of oil film stiffness on vibration of full ceramic ball bearing under grease lubrication
Authors: Sun Jian , Huang Junran , Tian Zhonghao , Yao Jinmei , Zhang Yang , Wang Lu 
Published: June 2024

Purpose
This paper aims to understand the vibration characteristics of full ceramic ball bearings under grease lubrication, reduce the vibration of the bearings and improve their service life.

Design/methodology/approach
The Hertz contact stiffness formula for full ceramic ball bearings is constructed; the equivalent comprehensive stiffness calculation model and vibration model of full ceramic ball bearings are established. The dynamic characteristic test of full ceramic ball bearing under grease lubrication was carried out by using the bearing life testing machine, and its vibration was measured, and its vibration acceleration root-mean-square was obtained by software calculation and compared with the simulation results.

Findings
At the rotational speed of 12,000 r/min, the root-mean-square value of vibration acceleration is maximum 10.82 m/s2, and the error is also maximum 7.49%. As the rotational speed increases, the oil film stiffness decreases. In the radial load of 600 N, the vibration acceleration root-mean-square is minimum 6.40 m/s2, but its error is maximum 6.56%. As the radial load increases, the vibration of the bearing decreases and then increases, so under certain conditions increasing the radial load can reduce the bearing vibration. With different types of grease, the best preload is also different; low-speed heavy load should be used when the viscosity of the grease is large, and high-speed light load should be used when the choice of smaller viscosity grease is made.

Originality/value
It provides a theoretical basis for the application of full ceramic ball bearings under grease lubrication, which is of great significance for reducing the vibration of bearings as well as enhancing the service life of bearings.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2024-0094/
Transformational leadership and well-being when working from home – the role of ICT demands
Authors: Tautz Dorothee , Felfe Jörg , Klebe Laura , Krick Annika 
Published: June 2024

PurposeThe purpose of this study is to investigate the effectiveness of transformational leadership (TFL) for employee well-being when working from home (WFH) and under the light of stressors coming from the use of information and communication technologies (ICTs).Design/methodology/approachModeration analyses were conducted with a sample of 763 employees who work at least one day a week from home.FindingsThe results suggest that TFL still has a positive effect on employee well-being during WFH, but that its effectiveness decreases when certain ICT demands that inhibit communication occur. Contrary to our expectations, constant availability did not weaken the effects of TFL.Practical implicationsLeaders must be aware of the influence of ICT demands on their leadership effectiveness and take countermeasures to increase effective communication and decrease the occurrence of ICT demands.Originality/valueCurrent literature on TFL was enhanced by examining its effectiveness in a WFH context and providing important insights into the challenges of remote work for leadership and employee well-being.
Improving the maritime supply chain resilience: the role of firms’ dynamic knowledge management and organizational innovation
Authors: Ding Jiangmin , Lee Eon-Seong 
Published: June 2024

PurposeThis study aims to explore the influence of dynamic knowledge management capabilities on organizational innovation and supply chain resilience in maritime shipping companies. Furthermore, this study investigates the moderating role of growth-oriented strategies and the mediating role of organizational innovation.Design/methodology/approachData were collected from 76 maritime shipping companies in South Korea. The research hypotheses were tested using structural equation modeling.FindingsThis study demonstrates that effective dynamic knowledge management capabilities in maritime shipping companies significantly enhance organizational innovation and boost the resilience of their supply chains. Organizational innovation positively mediates the relationship between dynamic knowledge management and supply chain resilience. Moreover, a company’s growth-oriented strategy positively moderates the relationship between dynamic knowledge management and organizational innovation.Originality/valueBased on the existing literature, this study develops the concept of dynamic knowledge management and validates its impact on organizational innovation and the resilience of maritime supply chains. Furthermore, unlike previous studies, this study focuses specifically on maritime supply chains. Through a survey of 76 maritime companies in South Korea, the study validates relevant hypotheses and draws conclusions. This contributes to expanding and enriching existing research while offering meaningful insights for relevant enterprises.
Design a new algorithm (iL-GA) to optimize controller parameters for an automotive suspension system
Authors: Nguyen Tuan Anh , Tran Thi Thu Huong , Hoang Thang Binh 
Published: June 2024

Purpose
This paper aims to design a PD controller for an active suspension system to improve the car’s moving smoothness.

Design/methodology/approach
The controller parameters are optimized by an in-loop genetic algorithm (iL-GA). Unlike previous studies that only used conventional GAs to tune coefficients for the controller, the iL-GA designed in this paper provides outstanding efficiency when determining the optimal value range for the system. The optimal value range of parameters is determined by the in-loop algorithm based on criteria related to systematic errors. The optimal values are then calculated by the GA based on this range instead of an uncertain one.

Findings
Simulation results show that vehicle body acceleration and displacement values are significantly reduced when using the active suspension system compared to the conventional passive suspension system. The phase difference phenomenon does not occur in the iL-GA situation. In addition, the frequency domain investigation also shows the system’s stability when using iL-GA instead of conventional GA.

Originality/value
To the best of the authors’ knowledge, this is a new application that provides positive effects to the suspension controller. This algorithm can be applied to tune coefficients for direct controllers in the future.
Novel pathogenic variants in HR underlie atrichia with papular lesions in a cohort of 10 families
Authors: Ullah Kifayat , Ahmed Sohail , Cesarato Nicole , Xiong Xing , Taj Maria , Manan Naushaba , Wehner Maria , Khan Muhammad Javed , Khan Hammal , Mehmood Sabba , Sharif Hasni Muhammad , Michna Dariusz , Waris Rehmana , Hamm Henning , Betz Regina C. , Ahmad Wasim , Ullah Imran 
Published: June 2024

AbstractAtrichia with papular lesions (APL) is a hair abnormality characterized by loss of hair on the scalp and rest of the body. In a few cases, hair loss is accompanied by the appearance of keratotic papules on the body. It is inherited in an autosomal recessive manner. Sequence variants in the HR (hairless) gene are responsible for this hair abnormality. Here, we present nine consanguineous families and one nonconsanguineous family with clinical manifestations of APL. Whole exome followed by Sanger sequencing and/or direct Sanger sequencing was performed to identify pathogenic variants. The study revealed seven novel pathogenic variants c.794del;p.(Pro265Argfs*98), c.2921‐2936del;p.(Tyr974Leufs*16), c.2889C>A;p.(Cys963*), c.2689C>T;p.(Gln897*), c.3186_3187dup;p.(Gln1063Profs*43), c.560dup;p.(Tyr188Ilefs*131), c.2203+5G>C, c.2776+5G>A, and the previously reported variant c.1837C>T;p.(Arg613*) in HR in these families. The study not only expands the mutational spectrum in the HR gene but also highlights the unusual phenotypic findings and will facilitate genetic counseling of families with members showing various types of hair loss disorders in the local population.
CLIMATE‐JUST HOUSING: A Socio‐spatial Perspective on Climate Policy and Housing
Authors: Weißermel Sören , Wehrhahn Rainer 
Published: June 2024

AbstractFocusing on the nexus of climate and housing policy, this article analyzes the socio‐spatial consequences of urban climate mitigation policies and the resultant need to broaden the concept of climate justice. By using the example of energy retrofitting in a low‐income district in Kiel, Germany, the article examines cities’ dependence on real estate companies to reach low‐carbon goals in a privatized housing market and the (potential) need to provide incentives for investment. As the case study shows, this can lead to a highly sensitive confluence of climate policy, private real estate investment and neighborhood development policy, which leads to a higher financial burden as well as the potential displacement and further political marginalization of current tenants. In light of these results, the article argues for the application of a climate justice frame in analyses of urban climate policies that integrates housing justice with spatial justice. Specifically, it calls for the right to climate‐just housing; that is, for the right to affordable housing to be connected with the right to energy‐efficient housing in one's own neighborhood. This implies the right to information and to urban space as political space, which in turn means the politicization of the targets, strategies and, not least, spaces of urban climate policy.
Altering operational conditions during protein fermentation to volatile fatty acids modifies the associated bacterial community
Authors: Vijande Carlota , Bevilacqua Riccardo , Balboa Sabela , Carballa Marta 
Published: June 2024

AbstractIn recent years, the production of volatile fatty acids (VFA) through mixed culture fermentation (MCF) has been gaining attention. Most authors have focused on the fermentation of carbohydrates, while other possible substrates, such as proteins, have not been considered. Moreover, there is little information about how operational parameters affect the microbial communities involved in these processes, even though they are strongly related to reactor performance and VFA selectivity. Hence, this study aims to evaluate how microbial composition changes according to three different parameters (pH, type of protein and micronutrient addition) during anaerobic fermentation of protein‐rich side streams. For this, two continuous stirred tank reactors (CSTR) were fed with two different proteins (casein and gelatine) and operated at different conditions: three pH values (5.0, 7.0 and 9.0) with only macronutrients supplementation and two pH values (5.0 and 7.0) with micronutrients' supplementation as well. Firmicutes, Proteobacteria and Bacteroidetes were the dominant phyla in the two reactors at all operational conditions, but their relative abundance varied with the parameters studied. At pH 7.0 and 9.0, the microbial composition was mainly affected by protein type, while at acidic conditions the driving force was the pH. The influence of micronutrients was dependent on the pH and the protein type, with a special effect on Clostridiales and Bacteroidales populations. Overall, this study shows that the acidogenic microbial community is affected by the three parameters studied and the changes in the microbial community can partially explain the macroscopic results, especially the process selectivity.
Streamflow response to drought in a managed coast redwood catchment
Authors: Keppeler Elizabeth , Wagenbrenner Joseph , Dymond Salli , Dralle David 
Published: June 2024

AbstractA 60‐year precipitation and streamflow record from the Caspar Creek Experimental Watersheds in northern California was used to explore the propagation of meteorological drought to hydrological drought. Standardized precipitation and runoff indices were calculated for the two forested catchments using integration periods of 12, 24, and 36 months. The resulting time series were used to define three severe drought events (1976–1977, 2013–2014, and 2020–2022). The earliest drought followed the 1971–1973 harvest of the 417 ha South Fork (SF) watershed, a second followed the 1989–1992 harvest of the 479 ha North Fork watershed, and a third followed the 2017–2019 reentry harvest of the SF. From these time series, we calculated drought metrics and anomalies to model differences in catchment responses in the context of climate and management. The meteorological drought in the 1977 event was more severe and extreme than the streamflow response. Both of the 21st Century droughts were hydrologically more severe than the 1977 drought. Timber harvest initially shortened and reduced streamflow drought (1977 and 2021) but prolonged and intensified the 2014 streamflow drought. Declining fall precipitation has reduced streamflows, thereby impeding salmonid migration and exacerbating impacts on native fish. Our results provide new insights into the role of climate variation, particularly long‐term and seasonal drought dynamics, in managed forests along the North American Pacific coast.
Post‐capture recovery is mediated by shifts in allostatic and metabolic dynamics in a threatened and endemic rhino ray
Authors: Wosnick N. , Giareta E. P. , de Rios L. Paula , Leite R. D. 
Published: June 2024

AbstractUnderstanding how animals respond to stressors is critical for effective conservation. The present study aimed to evaluate the physiological recovery of the Shortnose Guitarfish, Zapteryx brevirostris after being incidentally captured by artisanal fleets and compared it to guitarfish with delayed mortality. Moreover, the study aimed to test the efficiency of a rehabilitation protocol for the species. To this end, individuals landed alive were transported to the rehabilitation facilities and kept in tanks under monitoring for 3 days. Physiological markers indicative of allostatic overload (i.e., lactate and phosphorus) and energy metabolism (i.e., glucose and β‐hydroxybutyrate) were assessed in the serum of the studied guitarfish: right after gillnet capture (i.e., post‐capture) and on rehabilitation (i.e., pre‐monitoring, post‐monitoring, as well as guitarfish that deceased during monitoring – post‐mortem). Results showed that the transportation and additional handling employed in the rehabilitation protocol did not increase the stress response, pointing to its potential efficacy in recovering debilitated, incidentally caught guitarfish before release. As for recovery success of monitored guitarfish, lactic acidosis was fully reverted after a 3‐day rest period, as was allostatic overload. The same was not observed in recovery failure. Correlation tests revealed key relationships between physiological markers, shedding light on how physiological pathways help guitarfish cope with capture and handling stress. This study highlights the valuable application of conservation physiology principles to fisheries management of this endemic and threatened guitarfish species.
Young adults' visual attention to features of social media marketing for disposable e‐cigarettes and associated perceptions
Authors: Chen‐Sankey Julia , Weiger Caitlin , La Capria Kathryn , Vassey Julia , Jeong Michelle , Phan Lilianna , Unger Jennifer B. , Allem Jon‐Patrick , Berg Carla J. , Choi Kelvin 
Published: June 2024

AbstractBackground and aimsE‐cigarette marketing exposure on social media influences perceptions; however, limited knowledge exists regarding marketing features attracting the most visual attention. This study examined visual attention to features of social media marketing for disposable e‐cigarettes and related product perceptions.Design, setting and participantsParticipants viewed 32 disposable marketing post images from social media (Instagram) using computer‐based eye‐tracking technology to assess standardized attention metrics of marketing features. They then completed a survey assessing positive product perceptions. The study took place in New Jersey, USA, June–September 2022, comprising young adults (aged 18–29) who do not use tobacco (n = 72) or who smoke cigarettes (n = 42).MeasurementsWe examined associations between 14 marketing features (e.g. product package, personal item, fruit/candy descriptor, social media account) and standardized attention metrics of dwell time (fixation duration) and entry time (time to first fixation). Then, we assessed attention metrics for each feature in relation to positive product perceptions (appeal and positive use expectancy).FindingsAmong all participants, dwell time was the longest for the product descriptor [marginal means (MM) = 1.77; 95% confidence interval (CI) = 1.69, 1.86], social media account (MM = 1.76; 95% CI = 1.67, 1.85) and fruit/candy descriptor features (MM = 1.56; 95% CI = 1.41, 1.70); entry time was the shortest for the social media account (MM = 0.35; 95% CI = 0.26, 0.46), personal item (MM = 0.36; 95% CI = 0.17, 0.56) and human model features (MM = 0.40; 95% CI = 0.08, 0.72). Two use status groups had comparable dwell and entry times, except for the product descriptor feature. Longer dwell time for the product package feature increased positive product perceptions among both use status groups [regression coefficient (β) = 0.44 and 2.61]. Longer dwell time for fruit/candy descriptor (β = 1.80) and price promotion features (β = 4.04) increased positive product perceptions among those who smoke.ConclusionsUS young adults appear to be particularly visually engaged by disposable e‐cigarette marketing that uses social media account features (account profile pictures, information about the products marketed and relevant hashtags) and features enhancing the products' personal relatability. Disposable product packages, fruit/candy descriptors and price promotions may increase the influence of social media marketing among various use status groups.
A heutagogical approach to building the residential aged care workforce capability and capacity
Authors: Mahoney Anne‐Marie , Fetherstonhaugh Deirdre , Rayner Jo‐Anne 
Published: June 2024

AbstractObjectiveThis paper reports on the design and implementation of an interactive online education package for the diverse Australian residential aged care workforce, in response to the findings of the Royal Commission into Aged Care Quality and Safety. A decade of reports has consistently highlighted the need for an educated workforce to care for the increasingly frail older people with complex care needs living in residential aged care. Cost, availability and timing of education have been identified as barriers to uptake of education for this workforce.MethodsA heutagogical approach was used to design an evidence‐based, modular, online education package for nurses, care workers and allied health practitioners working in the residential aged care sector. The subject matter was developed by experts and the education divided into modules. A key challenge was to design a package that was inclusive of the diversity of educational needs in this workforce. The package does not provide assessments on completion of the modules, relying solely on the motivation of the individual learner.ResultsThis online education package provides choice and self‐determination for users in their learning journey. Collaborating with experts to develop an online education program that is learner‐driven, challenges the conventions of education. Users can navigate the package at their pace; choose the modules they have identified as knowledge gaps or are of interest; and complete the education in their own time.ConclusionAs expected, most users are care workers and nurses and the five modules of the Dementia program are the most popular.
‘We know the lack of services': Service lead’s perspective of enablers and barriers to hearing assessment for children in metropolitan, regional and rural Australia: A qualitative study
Authors: Zussino Jenna , Zupan Barbra , Preston Robyn 
Published: June 2024

AbstractObjectiveTo explore potential enablers and barriers to accessing paediatric hearing assessment from the perspective of Australian service leads, extending previous studies on this topic from the perspectives of two other stakeholder groups – parents and speech pathologists.DesignThis qualitative study, expanding upon previous mixed‐methods studies, applied a pragmatism paradigm.SettingThe study was undertaken online via Zoom and included participants who were service leads of organisations that offer hearing assessment in metropolitan, regional, rural and remote parts of Australia.ParticipantsEight Australian service leads participated in semi‐structured interviews.ResultsBarriers identified were similar to barriers in previous studies. Three main themes were identified. First, children with hearing loss in Australia are well identified at birth. The second theme focused on the reduced and inconsistent hearing assessment services available after this age. Finally, service leads discussed the importance of embracing technology to solve service access difficulties.ConclusionConsultation with key stakeholders, to consider the needs of different communities within Australia, will be crucial when identifying new service delivery options.
Blood‐based inflammatory protein biomarker panel for the prediction of relapse and severity in patients with neuromyelitis optica spectrum disorder: A prospective cohort study
Authors: Wei Quanfeng , Li Jiahong , Zhao Chenyang , Meng Su , Liu Na , Wu Zhe , Liu Fang , Cui Lingling , Hu Wenyu , Zhao Yinan 
Published: June 2024

AbstractBackgroundTo date, most existing models for predicting neuromyelitis optica spectrum disorder (NMOSD) are based primarily on clinical characteristics. Blood‐based NMOSD severity and prognostic predictive immune‐ and inflammation‐related biomarkers are needed. We aimed to investigate the associations between plasma inflammatory biomarkers and relapse and attack severity in NMOSD.MethodsThis two‐step, single‐center prospective cohort study included discovery and validation cohorts. We quantified 92 plasma inflammatory proteins by using Olink's proximity extension assay and identified differentially expressed proteins in the relapse group (relapse within 1 year of follow‐up) and severe attack group. To define a new molecular prognostic model, we calculated the risk score of each patient based on the key protein signatures and validated the results in the validation cohort.ResultsThe relapse prediction model, including FGF‐23, DNER, GDNF, and SLAMF1, predicted the 1‐year relapse risk. The severe attack prediction model, including PD‐L1 and MCP‐2, predicted the severe clinical attack risk. Both the relapse and severe attack prediction models demonstrated good discriminative ability and high accuracy in the validation cohort.ConclusionsOur discovered biomarker signature and prediction models may complement current clinical risk stratification approaches. These inflammatory biomarkers could contribute to the discovery of therapeutic interventions and prevent NMOSD progression.