bluuebunny/crossref_metadata_2025_split huggingface dataset:
A global sensitivity analysis method based on IBWO-SVR-SS
Authors: Cui Yuxin , Li Yong-Hua , Zhang Dongxu , Wang Yufeng , Zhang Zhiyang 
Published: June 2024

PurposeAiming at the inefficiency of solving the Sobol index using the traditional mathematical analytical method, a Sobol global sensitivity analysis method is proposed.Design/methodology/approachIn this paper, a support vector regression (SVR) surrogate model is constructed to solve the Sobol index. The optimal combination of SVR hyperparameters is obtained by using the improved beluga whale optimization (IBWO). Meanwhile, in order to solve the problem that Sobol sequences will form correlation regions in high-dimensional space leading to the uneven distribution of sampling points, a scrambled strategy is introduced in the Sobol sensitivity analysis using IBWO-SVR. Thus, the IBWO-SVR-SS sensitivity analysis model is established.FindingsThe results of two test functions show that the method further improves the accuracy of the sensitivity analysis. Finally, the first-order Sobol index and second-order Sobol index are solved by the IBWO-SVR-SS method using the metro bogie frame as an engineering example. Through the analysis results, the key design parameters of the frame and the design parameter combinations with more obvious coupling relationships are identified, providing a strong reference for the subsequent analysis and structural optimization.Originality/valueSobol sensitivity analysis using the surrogate model method can effectively improve the efficiency of the solution. In addition, IBWO is used for the optimization of the SVR hyperparameters to improve the accuracy and efficiency of the optimization, and finally, the correction of the Sobol sequence through the introduction of the disruption strategy also further improves the accuracy of the sensitivity analysis of Sobol.
Sport spectatorship in a virtual environment: how sensory experiences impact consumption intentions
Authors: Chung Kyu-soo , Goebert Chad , Johnson John David 
Published: June 2024

PurposeWith the advance of Web 3.0 and the range of sensory experiences offered by virtual reality (VR) to sport fans, this study examines how VR spectators’ sensory experiences affect their intentions to consume VR products and services. For this purpose, the study puts forth an expanded stimulus-organism-response (S-O-R) model. In this framework, the stimuli are the sensory imagery and stimuli, the organism factors are presence and arousal and the response is the consumption intention. This model adeptly encapsulates the comprehensive process of stimuli while spectating a sporting event in a virtual environment.Design/methodology/approachFor a VR stimulus, researchers developed a 3-min collegiate women’s volleyball game. Watching the game in VR were 131 collegiate students, who were then questioned about their visual and aural imagination of the game stimuli, perceived visual and aural stimuli, sense of presence, arousal and VR consumption intentions. To ensure the validity and reliability of the measurement model, confirmatory factor analysis was first conducted. Subsequently, the model was subjected to path analysis.FindingsThe measurement model demonstrated both validity and reliability. The subsequent path analysis yielded the model’s satisfactory fit. In particular, the mental visualization of VR spectators significantly influenced their perception of visual stimuli, while their imaginative engagement with auditory aspects impacted their perception of aural stimuli. The observed visual stimuli positively impacted the degree of presence experienced and the level of arousal induced. Similarly, the auditory stimuli exerted comparable effects on presence and arousal. The sense of arousal exhibited a considerable influence on the sense of presence. Furthermore, arousal emerged as a substantial determinant of individuals' VR consumption intentions.Originality/valueThe study highlights that the affective status of VR sport spectators is dominant in determining their consumption intentions. Also, the study finds the decisive role of presence in processing sensory stimuli in virtual sport spectating. It also provides managerial insight into designing and customizing VR sport experiences to be more enjoyable and impactful.
Improving frictional and insulation performance with silica-coated titanium dioxide additives in grease
Authors: Yang Kuo , Xia Yanqiu , Chen Wenhao , Zhang Yi 
Published: June 2024

Purpose
The purpose of this study was to synthesize composite nanoparticles (TiO2@SiO2) via the chemical deposition method and investigate their efficacy as additives in polytetrafluoroethylene (PTFE) lubricating grease. The focus was on examining the frictional and conductive properties of the TiO2@SiO2 grease using a friction tester.

Design/methodology/approach
Composite nanoparticles (TiO2@SiO2) were synthesized using the chemical deposition method and incorporated into PTFE grease. Frictional and conductive properties were evaluated using a friction tester. Surface morphology and chemical composition of wear tracks were analyzed using scanning electron microscope and X-ray photoelectron spectroscopy, respectively.

Findings
Incorporating TiO2@SiO2 at a mass fraction of 1 Wt.% led to a significant reduction in friction coefficient and wear width. The wear depth exhibited a remarkable decrease of 260%, while the contact resistance reached its peak value. This improvement in tribological properties could be attributed to the presence of TiO2@SiO2, where TiO2 served as the core and SiO2 as the shell during the friction process. The high hardness of the SiO2 shell contributed to enhanced load-bearing capacity. In addition, the exceptional insulation properties of SiO2 demonstrated excellent electron-capturing capabilities, resulting in improved friction and insulation performance of the TiO2@SiO2 lubricating grease.

Originality/value
This study demonstrates the potential of TiO2@SiO2 composite nanoparticles as additives in lubricating greases, offering improved friction and insulation performance. The findings provide insights into the design of advanced lubricating materials with enhanced tribological properties and insulation capacity, contributing to the development of more efficient and durable lubrication systems.
International taxation and the frustrations of formulary apportionment estimation
Authors: Sadiq Kerrie , Krever Richard , Bhatia Devika 
Published: June 2024

PurposeThe purpose of this paper is to investigate the challenges faced by empirical researchers investigating a shift from taxing multinational entities using the arm’s length system to a formulary apportionment system. Theoretically, a shift should increase global tax collections as profits currently attributed to low or no tax jurisdictions are allocated to jurisdictions with true input or output factors and shift the allocation between these countries. Before any jurisdiction seriously contemplated a shift from an arm’s length allocation system to a formulary apportionment regime, however, it would want to estimate the revenue impact of such a change.Design/methodology/approachThe paper systematically analyzes empirical papers that attempt to estimate the effects of formulary apportionment on country and global income revenue collected to determine the challenges faced by researchers.FindingsThe paper determines that there are both data and geo-political constraints that relate to (1) the method used to calculate the global profits of a multinational enterprise, (2) whether jurisdictions wish to adopt a global or regional formulary apportionment, (3) the weightings to be given to the factors used in the formulary apportionment, (4) the challenges of measuring sales at destination and the viability of surrogate measurements, (5) whether natural resources should be included in the measurement of the capital input factor, and (6) whether a redistribution objective should be included in the profit allocation formula.Originality/valueEstimating the changes is challenging both in terms collecting the data needed for the calculations and the choice of design options to be tested. The paper provides synthesized knowledge in relation to the difficulties in estimating the effects of moving to a formulary apportionment model for taxing multinational entities.
An artist’s journey to self-acceptance
Authors: Claire Victoria 
Published: June 2024

Purpose
This paper provides an insight into the left and career of the sculptress Victoria Claire, told in her own words.

Design/methodology/approach
This is a lived experience narrative.

Findings
Diagnosed with retinitis pigmentosa at the age of 19, Victoria’s life was turned upside down. Plunged into the depths of despair, it was her love for and practice of sculpture and music which saved her and gave her purpose. Years of therapy have helped her to understand and love herself as beautiful imperfection.

Practical implications
The vast majority of us inhabit a “sighted world”. Victoria helps us to understand how many of the things we take for granted are so much harder for the visually impaired.

Social implications
We all need to be sensitive to helping those with sensory difficulties navigate our social world.

Originality/value
When you look at the amazing sculptures that Victoria creates, you cannot help but be impressed that she can create such works of art using her hands, her sculpting tools and her imagination. We can gaze at the beauty of her creations. She cannot.
Exploring the efficacy of writing comics as a tool for enhancing EFL writing skills of undergraduate Ecuadorian polytechnic students
Authors: Estrella Felix 
Published: June 2024

Purpose
This paper aims to identify the effectiveness, student perceptions and impacts of integrating comics into the English as a foreign language (EFL) writing curriculum for undergraduate Ecuadorian polytechnic students.

Design/methodology/approach
This research followed a mixed method design to obtain quantitative information through a researcher-made survey and paired T-test, which would be corroborated by the qualitative data obtained from semistructured interviews.

Findings
From the descriptive and T-test results and the interview answers, it is concluded that students have a favorable view of the effectiveness of using comics to improve their writing skills. They also expressed their engagement and motivation to work with comics.

Research limitations/implications
First, the research sample, comprised of 109 students, may restrict the generalizability of the findings beyond the specific context of this study. This constraint suggests caution in extrapolating these findings to broader student cohorts, emphasizing the need for larger-scale studies to validate the robustness and applicability of the outcomes. Second, the study’s focus solely on students from a polytechnic state university introduces a potential limitation concerning the diversity and representativeness of the participant pool. Consequently, the findings might be limited in their applicability and may not fully encompass students’ varied responses and attitudes from other educational backgrounds.

Practical implications
The scaffolding afforded by comics aligns with genre-based literacy perspectives, valuing instruction in textual genres and social purposes. From a practical pedagogical point of view, this paper’s results suggest the potential of comic narratives and storyboarding. Comics writing could be added to classroom activities to vibrantly aboard brainstorming, drafting and peer reviewing before dealing with higher-stakes assignments. Legitimizing alternative mediums like comics for academic writing tasks has social implications for promoting literacies in a multimedia world.

Social implications
Writing comics nurtures multiliteracies aligned with participatory digital cultures by expanding traditional linguistic-centric norms. This multimodal composing can potentially increase access and representation and amplify voices across identities and cultures.

Originality/value
Although the paper addresses a topic that is not entirely novel in research, its originality lies in its focus on data originating from Ecuador, where specific cultural nuances and educational contexts may influence the effectiveness of using comics to enhance EFL writing skills. Thus, it fills a gap in the existing literature on this subject.
Shallow water multiple attenuation through the reconstruction of Green's impulse response
Authors: Liu Yike , Zhou Xiaopeng , Li Peng 
Published: June 2024

AbstractRemoval of water‐layer‐related multiples in shallow water remains a challenge due to a lack of near‐offset data. We have developed a shallow water multiple attenuation approach by constructing the impulse response of the water bottom for the removal of water‐layer‐related multiples. The impulse response of the seafloor is formed by the convolution of its traveltime response and amplitude response. It uses the superposition of the original shallow water demultiple operator to obtain traveltime information and uses the deconvolution method to estimate its dynamic components from the original shallow water demultiple operator to build new operators. The impulse response can be correctly constructed not only for near offsets but for moderate and far offsets as well. A three‐term subtraction strategy by predicting source‐side, receiver‐side and both source‐side and receiver‐side multiples is adopted in our approach for attenuating shallow multiples without over‐prediction. Numerical examples with two synthetic datasets and 2D and 3D field datasets demonstrate that our approach gives a desirable performance.
What do ministers and their advisers say to the critics of Public–Private Partnerships? Results from a mixed‐methods study
Authors: Zwalf Sebastian 
Published: June 2024

AbstractPublic–private partnerships (PPPs) have become an increasingly common model for government infrastructure delivery around the world. However, despite their widespread use, scholarship has been generally sceptical. This study identified 14 common policy and governance criticisms and observations of PPPs as they relate to the interests of citizens. Through interviews and surveys with 23 former government ministers—including 15 former premiers—and 87 political advisers, it tested levels of agreement with each criticism and observation. Its quantitative results find that politicians and their advisers agree with six of those criticisms/observations, reject three, and are neutral towards five. However, qualitatively, respondents were generally supportive of the PPP model, defending it against many of the criticisms and observations tested, particularly against apparent transparency shortcomings and the notion that the uptake of PPPs is motivated by direct electoral benefits. They also believed many criticisms of PPPs are overstated or could apply equally to the so‐called traditional procurement models. However, respondents cited significant human capital concerns about the ability of governments to achieve superior financial outcomes through effectively negotiated and monitored PPP contracts. The paper then notes that elected decision makers can identify apparent shortcomings in the PPP model, yet still accept its usage and considers why this might be the case.Points for practitioners
Politicians and their advisers accept some of the criticisms and observations made by scholars in relation to PPPs and citizen interests. Notwithstanding that, politicians and their advisers generally believe that PPPs are a technically superior delivery model when compared against its alternatives.
Politicians and their advisers do not accept a number of assertions made by scholars, including that PPPs have undermined government‐to‐citizen accountability; that PPPs have been associated with a de‐skilling of the public‐sector and that the Public Sector Comparator has been set‐aside when governments have chosen to do so. They also rejected assertions that PPPs had required governments to obscure more information from citizens.
Politicians and their advisers strongly believed that effective PPP contracts were critical to government achieving financial value through the PPP model. They believed the ability of government to achieve this was heavily depending on having capable public servants who could plan, negotiate and monitor PPP contracts. They believe governments can not easily find and retain said capable staff.
The reflexive imperative in the digital age: Using Archer’s ‘fractured reflexivity’ to theorise widening inequities in UK general practice
Authors: Rybczynska‐Bunt Sarah , Byng Richard , Spitters Sophie , Shaw Sara E. , Jameson Ben , Greenhalgh Trisha 
Published: June 2024

Abstract‘Reflexivity’, as used by Margaret Archer, means creative self‐mastery that enables individuals to evaluate their social situation and act purposively within it. People with complex health and social needs may be less able to reflect on their predicament and act to address it. Reflexivity is imperative in complex and changing social situations. The substantial widening of health inequities since the introduction of remote and digital modalities in health care has been well‐documented but inadequately theorised. In this article, we use Archer’s theory of fractured reflexivity to understand digital disparities in data from a 28‐month longitudinal ethnographic study of 12 UK general practices and a sample of in‐depth clinical cases from ‘Deep End’ practices serving highly deprived populations. Through four composite patient cases crafted to illustrate different dimensions of disadvantage, we show how adverse past experiences and structural inequities intersect with patients’ reflexive capacity to self‐advocate and act strategically. In some cases, staff were able to use creative workarounds to compensate for patients’ fractured reflexivity, but such actions were limited by workforce capacity and staff awareness. Unless a more systematic safety net is introduced and resourced, people with complex needs are likely to remain multiply disadvantaged by remote and digital health care.
Vocabulary exposure to children is enhanced by using both informational and narrative picture books for read‐alouds: A comparative modelling study using data science methods
Authors: Green Clarence , Keogh Kathleen 
Published: June 2024

BackgroundThe language that children are exposed to in their early years is enhanced by children's picture books. It is important to better characterise this input, and recent research has begun to explore corpora of narrative picture books. However, previous research has been restricted by methodological limitations that make it difficult to develop large datasets. Further, information texts become increasingly important as children progress through school, but little is known about the language of their earliest form, namely, informational picture books. The current study investigates how informational and narrative picture book exposure might change the language environment of children in a way that supports reading development.MethodsThe study applies data science methods to build a larger language model than previously possible and investigates the lexical profile of over 2000 narrative and information picture books. Picture book vocabulary is innovatively derived from digital sources of books read‐aloud online, which pushes the field forward by providing researchers access to larger pools of data than previously possible. Detailed comparisons of informational and narrative picture books are reported regarding their lexical diversity, density, morphology, academic vocabulary and semantic clusters. Models are developed to estimate the additional word‐type exposure a child may encounter in their language environment from narrative and informational picture books.ResultsThe study demonstrates that information and narrative picture books expose children to substantially different semantic environments. It is demonstrated that information picture books provide extensive exposure to academic vocabulary, providing important input aligned with later reading needs. Further, computational models indicate that book reading once every day or second day over a year might boost unique‐word exposure by approximately 10% for some language environments.ConclusionsCombining informational and narrative picture books enhance the language environment of children more than narratives alone, providing more lexical diversity, density and complex morphology.
Using movers to identify close election effects
Authors: YEANDLE ALEX 
Published: June 2024

AbstractMany theories of political participation imply that close elections increase voter turnout, but empirical support for this is mixed. One challenge is that close elections occur in unrepresentative places, making it difficult to extend counterfactual inferences across the wider electorate. In this note, I study closeness in an alternative way by leveraging those who move home between elections. With a large‐scale longitudinal survey in Great Britain, comparing individuals who move between safe and competitive parliamentary constituencies, I provide evidence that closeness increases campaign contact but generally fails to affect turnout. British movers are politically comparable to the wider electorate, so the results can be cautiously generalised. This contributes to substantive literature on voter and party‐led theories of participation, while adopting an empirical strategy seldom used in the study of political behaviour.
The effects of loose, firm, fine, and coarse substrates on the movement of the red flour beetle
Authors: Hanna Kimberley , Scharf Inon 
Published: June 2024

AbstractMovement plays a crucial role in animal behavior. However, despite the prevalence of uneven terrains in nature, many movement studies are conducted in arenas with smooth substrates. This discrepancy raises questions about the ecological validity of such experiments. To address this gap, we investigated the effect of rough substrates on movement properties using the red flour beetle (Tribolium castaneum) as a model organism. Our findings revealed significant variations in movement behavior between rough and smooth substrates. Notably, beetles traveled longer distances on smooth surfaces compared to sandpaper and loose sand. Moreover, variations in step size were influenced by substrate treatment, with the highest values observed on sand and sandpaper treatments. The proportion of time spent standing still also showed sensitivity to substrate conditions. The interaction between substrate properties and beetle sex further influenced several movement properties. Even the spatial configuration of rough and smooth areas in the arena had an impact on beetle movement, with areas along the arena perimeter exhibiting a stronger effect. These results highlight the impact of uneven terrain on beetle movement, underscoring the importance of considering environmental conditions when designing experimental setups. Here, this refers to the substrate on which animals move, but it may refer to other conditions, such as the test arena size and shape, temperature, humidity, and illumination. Failure to account for these background environmental conditions may result in inadvertently examining the interaction of the tested animals with these conditions, rather than focusing on the effect of the treatments applied in the experiment.