bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparing greedy constructive heuristic subtour elimination methods for the traveling salesman problem
Authors: Jackovich Petar , Cox Bruce , Hill Raymond R. 
Published: November 2020

Purpose
This paper aims to define the class of fragment constructive heuristics used to compute feasible solutions for the traveling salesman problem (TSP) into edge-greedy and vertex-greedy subclasses. As these subclasses of heuristics can create subtours, two known methodologies for subtour elimination on symmetric instances are reviewed and are expanded to cover asymmetric problem instances. This paper introduces a third novel subtour elimination methodology, the greedy tracker (GT), and compares it to both known methodologies.

Design/methodology/approach
Computational results for all three subtour elimination methodologies are generated across 17 symmetric instances ranging in size from 29 vertices to 5,934 vertices, as well as 9 asymmetric instances ranging in size from 17 to 443 vertices.

Findings
The results demonstrate the GT is the fastest method for preventing subtours for instances below 400 vertices. Additionally, a distinction between fragment constructive heuristics and the subtour elimination methodology used to ensure the feasibility of resulting solutions enables the introduction of a new vertex-greedy fragment heuristic called ordered greedy.

Originality/value
This research has two main contributions: first, it introduces a novel subtour elimination methodology. Second, the research introduces the concept of ordered lists which remaps the TSP into a new space with promising initial computational results.
Imperatives of functioning of the financial market of Ukraine in the global space of debt loading
Authors: Trusova Natalia V. , Yakusheva Inna Ye. , Zavoloka Yuliia M. , Yefremenko Alina H. , Malashenko Yuliia A. , Sidnenko Maryna V. 
Published: November 2020

PurposeThe article deals with the imperatives of functioning of the financial market of Ukraine in the global space of debt loading.Design/methodology/approachWithin the Laffer debt curve model, the dependence of gross domestic product (GDP) change on the level of debt of the financial system for countries that form the economic core in the global financial space and well control the level of the indicator, as well as new member states that have a different level of secure debt loading and affect the portion of the financial market that forms a portfolio of securities to cover the cost of nonperforming government securities is mentioned.FindingsIt has been shown that stock indices, as constituent indicators of changes in the price environment of a certain group of securities in time space, allow to estimate the general direction of the market movement even when prices within the index basket change in different directions.Originality/valueThe dynamics of changing the debt loading of the financial system of Ukraine in the current, medium-term perspective is analyzed. The amount of the fixed and floating rate debt of the government internal securities is determined to ensure the diversification of interest rate risk. Using the parameters of the model of approximation functions of dimensionless quantities, the corridor of a safe level of general government debt in the country was determined.
Internal audit quality: perceptions of Tunisian internal auditors an explanatory research
Authors: Krichene Aida , Baklouti Emna 
Published: November 2020

PurposeThe purpose of this study is to understand how internal auditors perceive the internal audit quality and to highlight the different profiles of internal auditors based on their perception of internal audit quality determinants.Design/methodology/approachThe authors’ methodological approach is based on the submission of a self-administered questionnaire. The final sample consists of 104 internal auditors. The first stage of the study is in the lead of a certified public accountants (CPA), which highlights seven factors of the internal audit quality. The second step is a confirmatory factor analysis (CFA) that allowed the authors to validate the model proposed by the CPA. Finally, the authors carry out a typological analysis of the auditors according to their way of perceiving the factors extracted by the CPA.FindingsThe authors’ model, validated by the CFA, shows that the knowledge of the internal auditor, the independence of reporting, compliance with professional standards of internal audit, the relationship with the external auditor, the personal relationship of the internal auditor, the access to information and the field of intervention of the internal auditor have a positive association with the internal audit quality but with a different degree of significance. For example, the field of intervention of the internal auditor and the access to information explain better the internal audit quality. However, the knowledge of the internal auditor and the relationship with the external auditor are not significant to explain the internal audit quality. From the hierarchical cluster analysis, four groups of internal auditors emerged: the autonomous, the perfectionists, the rigorous ones and the objectives.Originality/valueIn offering these findings, the paper contributes to the existing internal audit literature by introducing evidence from an emerging country, namely, Tunisia, of the internal audit quality model. In addition, the authors proposed a new measure to the internal audit quality model which is the use of the work of the internal auditor by the external auditor. This study is also interesting to managers and professional internal audit organizations in recognizing the characteristics of the quality of the internal audit and advance reflections on the effectiveness of internal audit practices. The authors’ study proposes a typology of certified internal auditors through their perceptions of the quality of the internal audit while taking into account the specificities of the Tunisian audit market. This provides insights to managers and audit committees on the measures necessary to ensure the relevance of the internal audit work within their companies.
Chefs' competencies: a stakeholder's perspective
Authors: Marinakou Evangelia , Giousmpasoglou Charalampos 
Published: November 2020

PurposeIn view to the skills gap challenge in the chefs' occupation, the purpose of this study was to identify the required chefs' skills and competencies for successful careers in culinary arts management in the UK context.Design/methodology/approachA quantitative approach was employed with a survey questionnaire on competencies. Data were collected from different stakeholders with 407 valid responses presenting views on necessary competencies and skills to pursue a career in culinary arts.FindingsThis study suggests that professionals in commercial kitchens should demonstrate strong managerial and leadership skills, as well as operational and administrative. Professionalism and democratic management should be exhibited by chefs, who should further develop their emotional intelligence (EI) competency.Practical implicationsOrganizations and academic institutions should provide such training to develop managerial and leadership skills that chefs need. Organizations should recruit based on these competencies model. Attention to diversity, equality and different cultures are important. Academic institutions should redesign their curriculum to address the industry's need on chefs' skills and competencies.Originality/valueThis is the first study to investigate chefs' competencies with empirical evidence from professionals, academics and students in the UK context. This study proposes a model with four sets of competencies, namely management, technical, strategic and operational.
Mediating distance: new interfaces and interaction design techniques to follow and take part in remote museum visits
Authors: Pisoni Galena 
Published: November 2020

PurposeThis paper presents a study of a system that allows remote and onsite visitors to share a museum visit together in real time. The remote visitors are older adults at a care home and their relatives and/or friends who are at the museum. The museum visits are interactive. Meaningful stories accompany the museum exhibits, and there’s an audio channel between onsite and remote visitors. The aim of the study is to determine whether the remote visitors, i.e. older adults are able to use such technology and to study the mediated sense of spatial presence, social closeness, engagement and enjoyment in the visit. This study discusses the relationship between these aspects and factors leading to a better remote experience for older adults.Design/methodology/approachThis study has 14 onsite and 12 remote older adult participants. Standardized questionnaires measured the mediated sense of spatial presence, the experienced social closeness and the level of participants' engagement and enjoyment in the visit of the older adult participants and traced onsite visitors in their position during the visit. The audio logs were subjected to thematic content analysis.FindingsThe results show that older adults enjoy and engage in remote visits, and that there is a positive correlation between enjoyment, engagement and social closeness. The findings argue that both the audio channel and the interactive story are important for creating an affective virtual experience: the audio channel increases the sense of closeness, whereas the interactive story makes the visit more engaging, providing structure, direction and purpose to the visit.Originality/valueThis work advances the state of art in the domain of technologies for older adults and addresses the needs of this population to stay in contact with both people and places.
Audit committee expertise in large European firms
Authors: Zarza Herranz César , Lopez-Iturriaga Felix , Reguera-Alvarado Nuria 
Published: November 2020

PurposeThis paper aims to study how audit committee member expertise is related to certain features of the committee and to the audit process.Design/methodology/approachBased on information from 2,477 directors from 296 firms in eight European countries between 2005 and 2014, this study measures average audit committee expertise using a continuous variable, which combines education-based and experience-based expertise. Different measures of the audit process are then regressed against this and other control variables.FindingsAverage committee expertise has increased in recent years. Education-based and experience-based expertise seem to be complementary. Results also show that committees with greater expertise meet more frequently, have fewer directors with full-time dedication and pay lower audit fees. There is no link to changes in the external firm audit, which may be due to mandatory auditor rotation.Originality/valueThe paper provides a comprehensive metric of audit committee expertise that includes directors’ academic background, professional experience and qualifications. In addition, this study expands current knowledge concerning whether and how committee expertise affects the audit process.
Gamification and service quality in bike sharing: an empirical study in Italy
Authors: Pasca Maria Giovina , Guglielmetti Mugion Roberta , Toni Martina , Di Pietro Laura , Renzi Maria Francesca 
Published: November 2020

PurposeBike sharing (BS) is a phenomenon of growing interest in the sustainable mobility field. In recent years, many governments have implemented concrete actions to diffuse the services in cities, trying to encourage citizens' sustainable behavior. Several mobile applications (apps) related to the mobility sector have embedded gamification mechanics applied in non-gaming contexts, able to create and increase user engagement and to manage users' behavior (Deterding et al., 2011). The main purpose of this study is to understand whether app perception influences gamification, and how gamification improves service quality and user loyalty in BS systems.Design/methodology/approachTo examine the impact of gamification on service quality and loyalty, the study performed secondary data collection and qualitative analysis with in-depth interviews. Thereafter, a quantitative analysis was conducted, and the theoretical model was analyzed through structural equation modeling (SEM).Findingsfindings showed that the use of gamification mechanics in BS services improves users' loyalty and directly influences service quality. The gamification tool improves users' engagement, transferring rules, facilitating the achievement of goals and quality standards and enhancing the BS usage.Originality/valueThis study uniquely contributes an understanding of the effect of gamification on service quality and loyalty in BS usage. It also provides some insight for companies and policymakers into implementing gamification mechanics in order to address new challenges for quality management.
Cruising down millennials’ fashion runway: a cross-functional study beyond Pacific borders
Authors: Cham Tat-Huei , Cheng Boon Liat , Ng Caryn Kar Yan 
Published: November 2020

PurposeThe clothing industry is one of the earmarked industries in many countries following the rising demand and consumption of clothing products among millennials. Malaysia and Thailand are known to be promising markets for this industry in the South East Asia region. The purpose of this study is to investigate the influence of psychological and marketing factors on clothing interest among Generation Y consumers, as well as the interrelationships between self-confidence, product attitude and purchase intention. The impact of nationality was also examined as a moderator on the investigated relationships.Design/methodology/approachThe data was collected among Generation Y consumers using a survey questionnaire, which had successfully gathered a total of 388 usable cases from the capital cities of Malaysia (Kuala Lumpur) and Thailand (Bangkok). These cities were selected for being the largest cities in its country which contain the highest number of shopping malls, offices and Generation Y population. Data analysis was then performed using both the SPSS and AMOS software.FindingsFindings obtained acknowledged the importance of both psychological (i.e. fashion innovativeness, self-concept, fashion consciousness and need for uniqueness) and marketing (i.e. social media marketing and fashion advertisement) factors towards the clothing interest among Generation Y consumers. Consequently, clothing interest would influence their product attitude, self-confidence and purchase intention, with product attitude and self-confidence as the mediators between clothing interest and purchase intention. Multigroup analysis confirmed that there are differences between Generation Y consumers in both Malaysia and Thailand, where Thai consumers hold a stricter emphasis concerning the influence of social media marketing on clothing interest and self-confidence on purchase intention.Originality/valueThis study is one of the very few studies that explored the minimally investigated territory on the consequential importance of clothing interest within the clothing industry, specifically, through extending the literature on the influence of psychological and marketing factors towards the individuals’ clothing interest. Moreover, this study also successfully highlighted the mediation role of product attitude and self-confidence in the relationship between clothing interest and purchase intention.
Buying reputation as a signal of quality: Evidence from an online marketplace
Authors: Li Lingfang (Ivy) , Tadelis Steven , Zhou Xiaolan 
Published: November 2020

AbstractSeller reputation, generated by buyer feedback, is critical to fostering trust in online marketplaces. Marketplaces or sellers may choose to compensate buyers for providing feedback. Signaling theory predicts that only sellers of high‐quality products will reward buyers for truthful feedback, especially when a product lacks any feedback and when the seller is not established. We confirm these hypotheses using Taobao's reward‐for‐feedback mechanism. High‐quality products, especially without established feedback, are chosen for feedback rewards, which cause sales to increase by 36%. Marketplaces and consumers can therefore benefit from allowing sellers to buy feedback and signal their high‐quality products in the process.
Induced pluripotent stem cells established from a female patient with Xq22 deletion confirm that BEX2 escapes from X‐chromosome inactivation
Authors: Yamamoto‐Shimojima Keiko , Osawa Mitsujiro , Saito Megumu K. , Yamamoto Toshiyuki 
Published: November 2020

AbstractLarge deletions in Xq22 are responsible for neurodevelopmental disorders, including severe intellectual disability and behavioral abnormalities. Although the deletion regions contain PLP1, the gene related to Pelizaeus‐Merzbacher disease (PMD), patients with Xq22 deletions show no clinical features of PMD such as paraplegia and white matter abnormalities. This could be due to skewed X‐chromosome inactivation (XCI) occurring predominantly in the affected allele. Isogenic pairs of wild type and mutant induced pluripotent stem cells (iPSCs) were established from the patient. In the iPSC line in which the wild type allele was inactivated, PLP1 was not expressed, but biallelic expression of BEX2 was identified. This suggests that BEX2 escaped from XCI and haploinsufficiency of BEX2 may be related to the phenotype of Xq22 deletions.
Children changing spaces, changing schools
Authors: Crook Deborah J. 
Published: November 2020

AbstractChildren's participation remains controversial in United Kingdom schools where children and their communities rarely have opportunity to change what happens. This paper considers an original approach that developed cooperative intergenerational inquiry with a class of 10–11‐year‐olds in the north of England as part of complexity‐informed participatory action research to consider children's participation in schools. Children and adults considered together, what schools are for, at the same time enabling children to shape spaces for participation in lesson time. The importance of recognising these spaces as dynamic intra‐subjective meeting points and of intergenerational relationships for change in schools is revealed.
Promoting meaningful and positive nature interactions for visitors to green spaces
Authors: Colléony Agathe , Levontin Liat , Shwartz Assaf 
Published: November 2020

AbstractThe increasing alienation of people from nature is profoundly concerning because people's interactions with nature affect well‐being, affinity for nature, and support of biodiversity conservation. Efforts to restore or enhance people's interactions with nature are, therefore, important to ensure sustainable human and wildlife communities, but little is known about how this can be achieved. A key factor that shapes the way people interact with nature is their affinity for nature (often measured as nature relatedness [NR]). We explored how using cues to experience nature as a means to induce NR situationally can influence the quality of people's nature interactions on visits to green spaces and their positive affect after the visit. Cues to experience are cues that guide individuals on how to interact with nature. We surveyed 1023 visitors to a nature reserve to examine the relationships between trait (i.e., stable and long‐lasting) and state (i.e., temporary, brief) NR, the quality of nature interactions, and positive affect. We also conducted a controlled experiment in which 303 participants spent 30 min outdoors on campus and reported the quality of their nature interactions and positive affect. Participants were randomly assigned to 1 of 9 cues‐to‐experience experimental groups (e.g., smell flowers, observe wildlife, turn off your phone) that differed in the psychological distance from nature that they prompted. Participants who received cues of close psychological distance from nature (e.g., smell and touch natural elements) interacted 3 to 4 times more with nature and reported 0.2 more positive affect than other participants. Our results demonstrate that providing cues to experience nature, which bring people closer to nature and potentially induce state NR, can enhance the quality of people's nature interactions and their positive affect. These results highlight the role of NR in high‐quality nature interactions and suggest the use of cues to experience as a promising avenue for inducing state NR and promoting meaningful interactions with biodiversity, thus, reconciling conservation and well‐being objectives.
Management of inflammatory bowel disease associated colonic dysplasia: factors predictive of patient choice and satisfaction
Authors: Kabir Misha , Thomas‐Gibson Siwan , Hart Ailsa L. , Tozer Phil J. , Faiz Omar , Warusavitarne Janindra , Wilson Ana 
Published: November 2020

AbstractAimIn cases of prognostic uncertainty and equipoise as to the best management (prophylactic colectomy vs. surveillance) for dysplasia in inflammatory bowel disease (IBD), individualized discussion with the patient is required. Further understanding of patients' preferences is needed.MethodsA nationwide cross‐sectional survey was distributed to adult IBD patients who had never been diagnosed with dysplasia (dysplasia‐naïve) and those who had (dysplasia‐experienced). Risk perceptions and factors that influence management choices were explored.ResultsThere were 123 respondents. A substantial proportion (29%) of the dysplasia‐experienced respondents did not feel well informed about the associated cancer risk and/or its management by their clinical team. Contributing themes included contradictory advice and lack of personalized information regarding their cancer risk, alternative management options and impact on long‐term quality of life. Decisional regret and health‐related quality of life amongst those who chose either surveillance or surgery were comparable, but cancer‐related worry scores were elevated in the surveillance group. The dysplasia‐naïve respondents reported that they would only consider having a prophylactic colectomy if they had on average a 50% or even higher risk of developing cancer. On multivariable logistic regression analyses, predictors of colectomy or surveillance preference included ethnicity, personality traits such as health locus of control (whether health status is influenced by luck) and differences in perception of what a low risk of cancer is.ConclusionsThis study identifies predictive factors that can influence decision‐making and satisfaction with the counselling process when IBD dysplasia is diagnosed. Further qualitative exploration of cultural themes would be informative.