bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental study on characterization of lubrication deterioration under rolling-sliding contact
Authors: Xu Chan , Tong Yunqi , Wu Tonghai 
Published: February 2025

Purpose
This study aims to characterize the lubrication condition under sliding-rolling contact using three indicators, including the oil film thickness and two perpendicular (vertical and tangential) vibrations. The lubrication deterioration can then be detected when sliding occurs in rolling contact.

Design/methodology/approach
An experimental study is presented to identify the lubrication deterioration under sliding-rolling contact. Sliding-rolling experiments with controlled loads, slip ratios and speeds are carried out on a roller-ring test rig. The deterioration of lubrication condition is analyzed by the transient oil film thickness and two perpendicular vibration signals, respectively.

Findings
The oil film thickness and the vibration signal play different roles in characterizing different lubrication deterioration conditions. Specifically, the degree of lubrication deterioration with slight solid-contact is indicated by the rapid reduction in oil film thickness. The degree of lubrication deterioration with severe solid-contact is reflected by two perpendicular (vertical and tangential) vibrations. Furthermore, the tangential vibration can indicate the occurrence of sliding in rolling contact.

Originality/value
A full characterization of the lubrication deterioration under sliding-rolling contact can be accomplished by integrating both the oil film thickness and two perpendicular vibration monitoring.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-07-2024-0244/
Analysis of the wear performance of with thin flange wheel for high-speed trains
Authors: Wang Daozhong , Yan Xiaoxia , Li Junxin , Liu Yutao 
Published: February 2025

Purpose
The wheel wear of high-speed trains is the main concern in the operation process of the high-speed trains. Wheel reprofile usually adopts the thin flange wheel profiles for the economic wheel reprofile strategy; however, the wheel wear evolution law of the thin flange wheel profile is not clear. The purpose of this paper mainly researches the wheel wear evolution law of thin flange wheel profile and the influence factors of thin flange wheel.

Design/methodology/approach
To solve this problem, this paper analyzed the wheel-rail contact relationship and established a vehicle dynamic model of high-speed train. The Jendel wheel wear model was used to analyze the evolution of thin flange wheel wear and rail deviation affecting wheel wear under thin flange wheel profiles.

Findings
Due to the consistency of the tread area, the distribution of wheel-rail contact points for thin flange wheels in the tread area is close. As the wheel flange increases, wheel wear also increases. Thin flange wheel profiles reduce wheel wear to a certain extent. The maximum wheel wear depths with rail deviations of −0.4 mm, 0 mm and 0.4 mm are 0.9844 mm, 1.077 mm and 1.142 mm, respectively. The negative rail deviation suppresses wheel wear, but the positive rail deviation increases wheel wear.

Originality/value
The evolution of wheel wear for thin flange wheels after reprofiling is not clear. This paper analyzed the wear characteristics of thin flange wheel wear and rail deviation affecting wheel wear under thin flange wheels.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-10-2024-0401/
Experimental study on the lubrication and vibration properties of rubber-plastic double-layer bush water-lubricated bearings
Authors: Zhang Xiuli , Gao Wenkai , Cui Jian , Shen Yuankang , Huang Tao , Gao Gengyuan , Cao Jun 
Published: February 2025

Purpose
Rubber-plastic double-layer bush water-lubricated bearings have demonstrated superior performance, while research on their vibration characteristics remains limited. This paper aims to investigate the lubrication and vibration properties of these bearings by experiments and examine the effect of rubber-to-plastic bush thickness ratio on bearing performance.

Design/methodology/approach
A water-lubricated journal bearing test rig is constructed, and three bearings with different bush thickness ratios are fabricated. Bush deformation under various loads is measured, and the friction coefficient and axis trajectory under different operating conditions are tested. The vibration responses of the bearings under directional harmonic excitation are studied. The influences of rotational speed, load and rubber-to-plastic bush thickness ratio on the bearing’s lubrication and vibration properties are analyzed.

Findings
The friction coefficient of the bearing initially decreases rapidly and subsequently increases gradually as the rotational speed or load increases. The bearing with a thicker rubber bush shows lower displacement amplitudes in its axis trajectory. Under a 45° directed excitation, significant oscillations are observed in the vertical displacement, while the horizontal displacement remains stable. The damping effect of the bearing with a thicker rubber bush is more pronounced.

Originality/value
This paper present the influence of rubber-to-plastic bush thickness ratio on bearing lubrication and vibration performance. The results are valuable for the design of this type of bearing.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-12-2024-0469/
Citizens’ acceptance and use of e-government services in Tunisia: a UTAUT2-based approach
Authors: Nasri Wadie 
Published: February 2025

PurposeThe purpose of this study is to explore the influence of key factors of unified theory of acceptance and use of technology model 2 (UTAUT2) on the behavioral intention (BI) to accept and use of e-government services in Tunisia.Design/methodology/approachThe research was conducted out with a sample of 203 participants. Confirmatory factor analysis was employed to evaluate the validity of the model, and Structural equation modeling was utilized to test the research hypotheses.FindingsThe results indicated that performance expectancy was the most significant predictor of the intention to accept and use e-government services. Facilitating conditions, social influence, effort expectancy and habit had a positive influence on BI to accept and use of e-government services. However, hedonic motivation and price value do not have a significant effect on BI to accept and use of e-government services. It was also found that BI to use e-government services had a significant influence on the actual use of e-government sites.Practical implicationsThe proposed model can be used as a guideline for e-government strategy formulation and implementation for the Tunisian Government.Originality/valueThis paper is among the first to investigate e-government services adoption in Tunisia using the UTAUT2 model.
Digital information consumption, democratic context, perceived corruption and political trust: a global examination
Authors: Daoudi Omar , Gainous Jason , Wagner Kevin , Buckles Grant 
Published: February 2025

PurposeThis study explores how digital information consumption and perceptions of corruption affect trust in government, shaped by country-level democratic context. We argue that in less democratic countries, the Internet increases access to political corruption news, impacting trust in government.Design/methodology/approachUsing Varieties of Democracy Institute (V-Dem) principles (liberal, participatory, deliberative, egalitarian), we analyze digital information consumption in 128 countries with Gallup data.FindingsParticipatory democracy strongly moderates the negative relationship between digital consumption and trust, especially in moderate democracies with high perceived corruption.Social implicationsDigital information’s effect on trust depends on government type and existing confidence levels.Originality/valueThis study uses data from 128 countries, enabling broad inferences about digital communication’s consequences. It also provides a novel examination of the relationship between digital information consumption, perceived corruption and attitudes towards government.
Introduction: the development of health tourism in challenging times – a focus on the Visegrád countries
Authors: Dryglas Diana , Smith Melanie Kay 
Published: February 2025

PurposeThis article provides the background to the topic being addressed in this issue: how to manage the development of health tourism in challenging times in the Visegrád countries. This introduction provides an overview of the current situation in the region, as well as summarizes the articles written in response to the main question.Design/methodology/approachThis article provides a context for the research, explaining the historical and geographical background for the four countries in question. The information is based on secondary data derived from academic literature as well as professional research studies.FindingsThe findings shed light on the current trends, opportunities and challenges in the development of health tourism in the Visegrád countries. The information presents new insights into the factors influencing the growth of the industry, the impact of changing consumer preferences and the role of stakeholders in shaping the future of health tourism in the region. The findings highlight best practices and successful strategies for managing the development of health tourism in challenging times.Originality/valueThis theme issue contributes to the existing literature on health tourism by focusing specifically on the Visegrád countries, a region that has received relatively little attention in previous research. By exploring this unique region, researchers will be able to identify key trends and challenges that are specific to these countries, and develop innovative strategies for managing the development of health tourism in this context. The findings of this theme issue have practical implications for policymakers and industry stakeholders looking to navigate the evolving landscape of health tourism in the Visegrád countries.
Moderate milling improved storage stability of quinoa based on the evaluation of lipid oxidation and physicochemical characteristics
Authors: Ni Danfeng , Gao Feng , Cao Hongwei , Song Hongdong , Huang Kai , Zhang Yu , Wang Xiaoxue , Tan Zhigang , Lu Jun , Guan Xiao , Grim Nabil 
Published: February 2025

AbstractThis study investigated the storage stability of quinoa across various milling degrees (MD) concerning lipid oxidation and physicochemical characteristics during different storage durations. The process of milling induced tissue disruption, potentially facilitating contact between internal components and air, thereby impacting the storage stability of quinoa. The findings highlighted that cooking quality and textural properties exhibited a more pronounced improvement from MD 19% to MD 27% over a 6 M storage period. Notably, peak viscosity demonstrated a negative correlation with springiness and a positive correlation with water absorption of milled quinoa throughout storage. Thermal property analysis indicated that the increase of storage time and the decomposition of fatty acids triggered heat release, consequently reducing the enthalpy (ΔH) in milled quinoa. Scanning electron microscopy further exposed the oxidation of lipids in quinoa with varying MD during storage. In contrast to quinoa with higher degrees of milling, quinoa with MD 19% showcased superior textural characteristics and enhanced storage stability.
Sustainable protein concentrate from Cannabis sativa L. seeds: Green chemistry and new functional concentrates for the alternative protein industry
Authors: Presa‐Lombardi Joaquín , Sallé Leonardo , Gutierrez‐Barrutia Maria Belen , Cozzano Sonia 
Published: February 2025

AbstractThis research focused on developing a hemp protein concentrate through a potential sustainable method, with nutritional and industrial value for the emerging alternative protein industry. By response surface methodology, the optimal processing conditions (100% ethanol, 50°C, and 10% w/v solid‐to‐solvents ratio) resulted in a hemp protein concentrate with 68.61% ± 1.71% protein. The process had a protein yield value of 94.11% ± 4.45%, which aligns with current sustainable food processing trends and is an excellent value compared to traditional methods for hemp seeds. The concentrate met nutritional quality criteria for most examined parameters and showed positive results regarding essential amino acids absorption through in vitro digestion compared to nonessential amino acids. Furthermore, its techno‐functional properties, particularly oil‐holding capacity, emulsification properties, and gelling qualities achieved commercial standards. This research validates the potential for producing new protein concentrates from dehulled hemp seeds through an innovative green chemistry‐based method.Practical ApplicationThe research presents a method based on green chemistry for the obtention of hemp protein concentrate from hemp seeds. Hemp seeds are not considered a “novel food” according to the European Commission. Hemp protein concentrate had 95% protein yield and similar or better functional properties compared to commercial proteins. Thus, hemp protein is an important product for food industry applications.
Chronic binge alcohol dysregulates omental adipose tissue extracellular matrix in simian immunodeficiency virus‐infected macaques
Authors: Poret Jonquil M. , Simon Liz , Molina Patricia E. 
Published: February 2025

AbstractBackgroundIncreased survival, prolonged antiretroviral treatment (ART), and lifestyle choices, including alcohol misuse, increase the risk for comorbid conditions, including cardiometabolic comorbidities among people with HIV (PWH). Published studies indicate that dysregulated adipose tissue phenotype, particularly of the visceral adipose depot, contributes to metabolic dysregulation. Using a nonhuman primate model of simian immunodeficiency virus (SIV) infection, we previously demonstrated that chronic binge alcohol (CBA) administration to ART‐treated rhesus macaques decreases whole‐body glucose‐insulin dynamics, increases omental adipose tissue (OmAT) collagen content, decreases OmAT adipocyte size, and alters pancreatic endocrine function. The objective of this study was to delineate the depot‐specific effects of CBA on visceral (VAT) and subcutaneous adipose tissue (SAT) extracellular matrix (ECM) phenotype, the potential mechanisms involved in AT ECM remodeling, and the implications of increased tissue stiffness on AT metabolic alterations in female SIV‐infected macaques.MethodsOmental and subcutaneous adipose samples were obtained from female SIV‐infected, ART‐treated macaques that received intragastric administration of CBA (12–15 g/kg/week, CBA/SIV) or water (VEH/SIV) for 14.5 months.ResultsCBA preferentially altered the ECM phenotype in OmAT, a VAT depot. The CBA‐associated changes included increased ECM accumulation, increased collagen I–III ratio, a profibrotic milieu, and decreased matrix metalloproteinase 13 activity. These changes were associated with smaller adipocyte size, decreased triglyceride content, decreased gene expression of perilipins, and a potential dysregulation of peroxisome proliferator‐activated receptor gamma signaling.ConclusionsCollectively, these findings suggest that CBA‐mediated ECM remodeling “traps” adipocytes within a stiff environment that we propose disrupts adipocyte metabolic programming and may increase the risk for metabolic comorbidities.
Crash Course in Conservation: Predicting and Mitigating Wildlife–Vehicle Collisions in a Savannah Area
Authors: Mukomberanwa Nobert Tafadzwa , Ngorima Patmore 
Published: February 2025

ABSTRACTTemporal patterns in wildlife–vehicle collisions (WVCs) correspond with animal behaviour and biology, predominantly occurring during breeding and dispersion seasons, as well as daily foraging and resting activities of animals. As a result, diverse taxonomic groups worldwide are affected by vehicle collisions, including reptiles, amphibians, mammals and birds. Ecologically, WVC results in population declines and can differentially affect animal populations. Yet, monitoring biodiversity and examining the factors influencing its alterations enable society to make informed decisions on conservation and enhance the management of human–wildlife conflicts. Effective mitigation techniques necessitate knowledge about the location and timing of traffic casualties involving wildlife. The objectives of this study were as follows: (i) to analyse the trends in WVC and (ii) to forecast future scenarios of WVC in the Hurungwe Safari Area (HSA), located in the Mid Zambezi Valley, Zimbabwe. The study aims to develop evidence‐based strategies tailored to the local context and feasibility for reducing WVC frequency and severity. We used WVC data for 22 different species collected by the Zimbabwe Parks and Wildlife Management Authority (ZPWMA), Marongora Field Station. This study performed a trend analysis and then forecast future WVC using time series methods. We used K‐means to determine clusters in the species data. Time series forecasting was performed using the Autoregressive Integrated Moving Average (ARIMA), a popular statistical method used for time series forecasting. Our results indicated an exponential growth in the number of WVC for some animal species, that is, civet, buffalo, hyena and waterbuck by the year 2030. Modelling trends in WVC is important for protecting wildlife, enhancing road safety and reducing economic costs. It informs conservation efforts, guides effective management strategies like wildlife crossings, and raises public awareness about the impact of driving on ecosystems. This data ultimately promotes coexistence between humans and wildlife.
Close encounters: Interpersonal proximity amplifies social appraisals
Authors: Veranic Kristina , Bayliss Andrew P. , Zhao Mintao , Stephen Ian D. , Ewing Louise 
Published: February 2025

AbstractSocial appraisals reflect the rapid integration of available perceptual information with broader contextual factors (e.g., intentions). While interpersonal distance affects both information availability and social context, how it changes trait impressions remains unknown. Over four experiments, we used a novel paradigm to address this question. In Experiment 1, we assessed participants' attributions of attractiveness, competence, dominance and trustworthiness of life size full body images of people when they appeared at near (1 m) and far (4 m) distances. Proximity amplified the relative magnitude of both positive and negative socio‐evaluative impressions. However, this effect of proximity leading to more extreme positive or negative ratings was selectively weaker for aesthetic (attractiveness) judgements. In Experiment 2 (size) and Experiment 3 (spatial frequency), we held distance constant while manipulating visual cues relating to implied distance, revealing broadly similar results to Experiment 1. In Experiment 4, we used the interpersonal comfort distance paradigm to confirm that our life‐sized projected images elicited similar comfort distance to interacting with a real person, helping to validate our general approach. These findings demonstrate the crucial role of interpersonal distance in impression judgements.
Impact of income position information on perceived tax burden and preference for redistribution: An online survey
Authors: Yamamura Eiji 
Published: February 2025

AbstractMany experimental studies have assessed the relationship between the provision of information on relative income and redistribution preferences. However, the influence of information on perceived tax burden, which is considered a subjective cost of redistribution, has not been examined. This study investigates how individuals' relative income positions influence their income redistribution preferences and individual perceptions of the income tax burden. This study was conducted using a customized online survey. First, I asked respondents about their perceived income position in their country, redistribution preference and perceived tax burden. In the follow‐up survey, I provided the treatment group with information on their true income positions based on the same questions as in the first survey. However, for the control group, I did not disclose their true income positions but asked them the same questions. The key findings suggest that, after learning their real income positions: (i) individuals who overestimated their income positions perceived their tax burden as higher, (ii) individuals' redistribution preferences had hardly changed and (iii) reciprocal individuals (who accounted for the largest proportion) perceived their tax burden as lower and were less likely to prefer redistribution.
Melatonin Regulates Glymphatic Function to Affect Cognitive Deficits, Behavioral Issues, and Blood–Brain Barrier Damage in Mice After Intracerebral Hemorrhage: Potential Links to Circadian Rhythms
Authors: Chen Yunzhao , Guo Hexi , Sun Xinguo , Wang Shanjun , Zhao Mingyu , Gong Junjie , He Anqi , Li Jing , Liu Yuheng , Wang Zengguang 
Published: February 2025

ABSTRACTBackgroundIntracerebral hemorrhage (ICH) is a life‐threatening cerebrovascular disorder with no specific pharmacological treatment. ICH causes significant behavioral deficits and cognitive impairments. Recent research suggests that circadian rhythm regulation could be a promising therapeutic strategy for ICH. Melatonin has been shown to alleviate glymphatic system (GS) dysfunction by regulating circadian rhythms, thereby improving depressive‐like behaviors and postoperative sleep disorders in mice. However, its application in ICH treatment and specific mechanisms are not well understood.MethodsICH models were created in 8‐to‐10‐week‐old mice using collagenase injection. Circadian rhythm modulation was tested with melatonin and luzindole. Behavioral and cognitive impairments were assessed with the modified neurological severity score, corner test, and novel object recognition test. Brain water content was measured by the dry/wet weight method, and cerebral perfusion was assessed by cerebral blood flow measurements. GS function was evaluated using RITC‐dextran and Evans blue assays. Immunofluorescence and western blotting were used to analyze GS function and BBB permeability.ResultsMelatonin restored GS transport after ICH, promoting hematoma and edema absorption, reducing BBB damage, and improving cognitive and behavioral outcomes. However, luzindole partially blocked these benefits and reversed the neuroprotective effects.ConclusionMelatonin and luzindole treatment affect GS function, BBB permeability, and cognitive‐behavioral outcomes in mice with ICH. The underlying mechanism may involve the regulation of circadian rhythms.