bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fungal mycelia and bacterial thiamine establish a mutualistic growth mechanism
Authors: Abeysinghe Gayan , Kuchira Momoka , Kudo Gamon , Masuo Shunsuke , Ninomiya Akihiro , Takahashi Kohei , Utada Andrew S. , Hagiwara Daisuke , Nomura Nobuhiko , Takaya Naoki , Obana Nozomu , Takeshita Norio 
Published: July 2020

AbstractPhysical spaces and nutrients are prerequisites to the survival of organisms while few interspecies mutual strategies are documented that satisfies them. Here we discovered a mutualistic mechanism between filamentous fungus and bacterium,Aspergillus nidulansandBacillus subtilis. The bacterial cells co-cultured with the fungus traveled along mycelia depending on their flagella and dispersed farther with the expansion of fungal colony, indicating that the fungal mycelia supply space for bacteria to migrate, disperse and proliferate. Transcriptomic, genetic, molecular mass and imaging analyses demonstrated that the bacteria reach the mycelial edge and supply thiamine to the growing hyphae, resulting in a promotion of hyphal growth. The thiamine transfer from bacteria to the thiamine non-auxotrophic fungus is directly demonstrated by stable isotope labeling. The simultaneous spatial and metabolic interactions demonstrated in this study, reveal a mutualism that facilitates the communicating fungal and bacterial species to obtain environmental niche and nutrient respectively.
Does corporate governance affect the performance of Islamic banks? New insight into Islamic countries
Authors: Aslam Ejaz , Haron Razali 
Published: July 2020

PurposeCorporate governance plays a significant role to overcome agency issues and develop the culture of transparency and openness. In this context, this paper aims to examine how corporate governance mechanisms affect the performance of Islamic banks (IBs).Design/methodology/approachStepwise, two-step system generalize method of moment estimation technique is used in the analysis in which control variables are added into the model sequentially. This study used data on 129 IBs from 29 Islamic countries (Middle East, South Asia and Southeast Asia) during the period of 2008 to 2017.FindingsThe findings suggest that the audit committee (AUDC) andShariahboard (SB) have positive impact on the performance of IBs (return on assets and return on equity). However, board size and risk management committee have negative and significant effect on the performance of IBs. CEO duality and non-executive directors have mixed relationship with the performance of IBs. These results support the argument that IBs need to improve their financial performance through appropriate governance mechanism.Research limitations/implicationsThe findings of the study added a new dimension to the governance research that could be a valuable source of knowledge for policymakers and regulators to improve the existing governance mechanism for better performance of IBs.Originality/valueThe study fills the gap in the literature by addressing the issue of corporate governance on performance of IBs across countries. Agency theory is discussed to explain the relationship between corporate governance mechanism and performance.
Cognitive attunement in the face of organizational plasticity
Authors: Secchi Davide 
Published: July 2020

PurposeThe paper aims to use part of the distributed cognition literature to study how employees cope with organizational plasticity, in an attempt to identify the characteristics of cognitive plasticity.Design/methodology/approachEvidence is collected by designing and implementing an agent-based computational simulation model (the IOP 2.0) where employees have the option to use external resources and the social environment to perform tasks. As plasticity is more effective when change and uncertainty are high, the simulation features an increase in the difficulty and number of tasks to which employees need to cope.FindingsCooperation and sharing of competence and ability are key to cognitive plasticity. Being able to master the use of some resources, together with other employees’ competencies, make some achieve the most efficient task performance.Practical implicationsThe findings suggest that under conditions of change and plasticity, human resource management (HRM) shall attempt to develop measures to support employees' cognitive skills necessary to cope with it, for example, mostly through diagnosis, training and facilitating on-the-job dialogue.Originality/valueThis is the first study that attempts a merger between organizational cognition and plasticity, and it is the first to match its results to HRM policy recommendations.
Correcting for endogeneity in hospitality and tourism research
Authors: Assaf A. George , Tsionas Mike 
Published: July 2020

Purpose
This paper aims to foster a new discussion on endogeneity in hospitality and tourism research.

Design/methodology/approach
This paper elaborates on some of the common sources of endogeneity and the methods available to address them.

Findings
The authors present a variety of methods that can be used to mitigate the endogeneity problem. The authors provide simulation evidence regarding the risk of incorrectly selecting instrumental variables. The authors also provide several important practical recommendations for future research.

Research limitations/implications
There are other issues and methods of correcting for endogeneity, that is not covered in this paper. However, the paper focuses on issues and methods that can be generalized to most contexts.

Originality/value
The paper provides practical recommendations for more rigorous regression estimation.
The cost-effectiveness of insulin analogs and regular insulin for diabetes control: a case study in Iran
Authors: pakdaman Mohsen , akbari Raheleh , Dehghan Hamid reza , Asgharzadeh Asra , Namayandeh Mahdieh 
Published: July 2020

PurposeFor years, traditional techniques have been used for diabetes treatment. There are two major types of insulin: insulin analogs and regular insulin. Insulin analogs are similar to regular insulin and lead to changes in pharmacokinetic and pharmacodynamic properties. The purpose of the present research was to determine the cost-effectiveness of insulin analogs versus regular insulin for diabetes control in Yazd Diabetes Center in 2017.Design/methodology/approachIn this descriptive–analytical research, the cost-effectiveness index was used to compare insulin analogs and regular insulin (pen/vial) for treatment of diabetes. Data were analyzed in the TreeAge Software and a decision tree was constructed. A 10% discount rate was used for ICER sensitivity analysis. Cost-effectiveness was examined from a provider's perspective.FindingsQALY was calculated to be 0.2 for diabetic patients using insulin analogs and 0.05 for those using regular insulin. The average cost was $3.228 for analog users and $1.826 for regular insulin users. An ICER of $0.093506/QALY was obtained. The present findings suggest that insulin analogs are more cost-effective than regular insulin.Originality/valueThis study was conducted using a cost-effectiveness analysis to evaluate insulin analogs versus regular insulin in controlling diabetes. The results of study are helpful to the government to allocate more resources to apply the cost-effective method of the treatment and to protect patients with diabetes from the high cost of treatment.
An investigation of impact-sliding behavior and fretting wear of tubes against different supports in steam generators
Authors: Guo Kai , Han Zhongli , Wang Yipeng , Wang Yang , Tan Wei 
Published: July 2020

Purpose
The purpose of this study is to reveal the interaction behavior between tubes and supports in steam generators and study the fretting wear of tubes in different load conditions.

Design/methodology/approach
The fretting wear tests were conducted to investigate the fretting wear behavior of the tubes against three kinds of supports: the drilled circular holes (DCH), anti-vibration bars (AVBs) and trefoil orifice holes (TOH), which are widely used supports in nuclear steam generators. In this paper, the comparison of the interaction characteristic with different impact factors was established such as clearances and loads in the three kinds of supports. The fretting wear volume and scars were analyzed by a scanning electron microscope and 3D profiler.

Findings
The results show that impact can play a more important role in the DCH and TOH supports than that in AVBs. The normal work rate can be underestimated in the DCH and TOH supports.

Originality/value
The results of this study can be reference of fretting wear calculation in the design of steam generators with different kinds of supports and can be guidance in the maintenance of steam generators.

Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-12-2019-0513/
Mandatory audit firm rotation: a critical composition of practitioner views from an emerging economy
Authors: Harber Michael , Maroun Warren 
Published: July 2020

Purpose
This study aims to address an acknowledged gap in the literature for the analysis of experienced practitioner views on the effects and implications of mandatory audit firm rotation (MAFR).

Design/methodology/approach
Using an exploratory and sequential design, data was collected from South African regulatory policy documents, organisational comment letters and semi-structured interviews of practitioners. These findings informed a field survey, administered to auditors, investors, chief financial officers (CFOs) and audit committee members of Johannesburg Stock Exchange (JSE) listed companies.

Findings
Practitioners expressed considerable pushback against the potential efficacy of MAFR to improve audit quality due to various “switching costs”, notably the loss of client-specific knowledge and expertise upon rotation. In addition, the cost and disruption to both the client and audit firm are considered significant and unnecessary, compared to audit partner rotation. The audit industry may suffer reduced profitability and increased strain on partners, leading to a decline in the appeal of the profession as a career of choice. This is likely to have negative implications for audit industry diversity objectives. Furthermore, the industry may become more supplier-concentrated amongst the Big 4 firms.

Practical implications
The findings have policy implications for regulators deciding whether to adopt the regulation, as well as guiding the design of policies and procedures to mitigate the negative effects of adoption.

Originality/value
The participants are experienced with diverse roles concerning the use, preparation and audit of financial statements of large exchange-listed multinational companies, as well as engagement in the auditor appointment process. The extant literature presents mixed results on the link between MAFR and audit quality, with most studies relying on archival and experimental designs. These have a limited ability to identify and critique the potential’s witching costs and unintended consequences of the regulation. Experienced participants responsible for decision-making within the audit, audit oversight and auditor appointment process, are best suited to provide perspective on these effects, contrasted against the audit regulator’s position.
Role of conspicuous value in luxury purchase intention
Authors: Jain Sheetal 
Published: July 2020

Purpose
Generation Y consumers are the key drivers for luxury market growth in the future. Yet, very few studies have been performed to understand Gen Y consumers' luxury consumption behavior, mainly in context of emerging markets like India. The main objectives of this study are first, to develop a conceptual framework which integrates the role of key variables that influence Gen Y consumers' purchase intention for luxury goods. Second, to analyze the mediating effect of attitude and subjective norm on the relationship between conspicuous value and luxury purchase intention.

Design/methodology/approach
Data were collected through structured questionnaires from a sample of 215 Gen Y luxury fashion consumers in India. Collected data were analyzed through confirmatory factor analysis (CFA) and Hayes Process macro in SPSS.

Findings
The findings revealed that attitude and subjective norm partially mediated the relationship between conspicuous value and luxury purchase intention. The findings also demonstrated that mediation effect significantly differs between consumers with low and high need for status as well as consumers with low and high need for uniqueness.

Originality/value
This is the first study performed to understand the mediating and moderating effect of various contextual variables (namely, attitude, subjective norm, uniqueness value and status value) on the association between conspicuous value and luxury purchase intention. This study will have important implications for both academicians and practitioners.
Emotional intelligence as an antidote to the negative implications of perceived managerial supplication: a sectorial comparison
Authors: Meisler Galit 
Published: July 2020

PurposeThis study investigated whether managers' nonaggressive political behavior can result in negative emotional and attitudinal outcomes such as aggressive behavior and the role of emotional intelligence (EI) in this context. The authors explored a moderated mediation model in which perceived managerial supplication elicited hostility that increased turnover intentions and the emotional abilities included in EI acted as antidotes to these outcomes.Design/methodology/approachThe authors tested the moderated mediation model using two large samples, one from the public sector and the other from the private sector, providing a cross-sectorial comparison. The authors collected the data for this study in three waves.FindingsThe authors’ findings revealed that the model fit the public sector alone. Moreover, others' emotion appraisal was the only aspect of EI that moderated the hostility and turnover intentions of public servants.Practical implicationsInterventions aimed at increasing the EI level of public servants can be a powerful tool for reducing their hostility and turnover intentions. However, these interventions must focus on all four aspects of EI , particularly others' emotion appraisal.Originality/valueManagers' nonaggressive political behavior can result in negative emotional and attitudinal outcomes such as aggressive behavior. However, EI reduces these negative outcomes among public servants.
Blockchain technology-enabled supply chain systems and supply chain performance: a resource-based view
Authors: Nandi Madhavi Latha , Nandi Santosh , Moya Hiram , Kaynak Hale 
Published: July 2020

Purpose
Using the resource-based theoretical view of the firm, this paper aims to explore how firms’ efforts to integrate blockchain technology (BCT) into their supply chain systems and activities enable certain supply chain capabilities and, consequently, improve their supply chain performance.

Design/methodology/approach
Using an abductive research approach, a qualitative content analysis was conducted on 126 cases of firms attempting to implement a blockchain technology-enabled supply chain system (BCTeSCS). These firms spanning across multiple industries were identified using the Nexis Uni database.

Findings
Findings reveal that present BCTeSCS efforts are more-oriented toward improving operational-level capabilities (information sharing and coordination capabilities) than strategic-level capabilities (integration and collaboration capabilities). These operational and strategic-level capabilities alongside BCTeSCS deliver several supply chains performance outcomes such as quality compliance and improvement, process improvement, flexibility, reduced cost and reduced process time. However, outcomes may vary by industry type based on their uncertainties.

Research limitations/implications
Given the nascent state of BCT, accessibility to primary data about ongoing BCTeSCS efforts is limited. The presented framework is based on 126 cases of secondary information. Within this constraint, the paper finds scope to future empirical research by proposing a resource-based framework of BCTeSCS and related propositions.

Practical implications
The results and discussion of this study serve as useful guidance for practitioners involved in BCTeSCS integrations.

Social implications
The paper creates a BCTeSCS scenario for stakeholders to assume its potential socio-economic and socio-environmental pressures.

Originality/value
This paper is one of the initial attempts to examine BCTeSCS efforts across multiple industries, and thus, promises a broad future research scope.
Scale‐dependent changes in tree diversity over more than a century in eastern Canada: Landscape diversification and regional homogenization
Authors: Danneyrolles Victor , Vellend Mark , Dupuis Sébastien , Boucher Yan , Laflamme Jason , Bergeron Yves , Fortin Gabriel , Leroyer Marie , de Römer André , Terrail Raphaële , Arseneault Dominique 
Published: July 2020

Abstract

A better understanding of how disturbance impacts tree diversity at different scales is essential for our ability to conserve and manage forest ecosystems in the context of global changes. Here we test the impacts of land use‐related disturbances on tree diversity since the 19th century across a broad region (>150,000 km2) of northern temperate forests in eastern Canada.

We used a large and unique dataset of early land surveys conducted during the 19th century (>130,000 species lists), along with modern forest inventories (>80,000 plots), to analyse long‐term changes in taxonomic and functional tree diversity at several scales (grid cell resolutions ranging from 12.5 to 1,600 km2; we refer to one grid cell as a ‘landscape’).

Our results show that land use‐related disturbances have led simultaneously to (a) increased diversity within landscapes and a (b) homogenization at the regional scale (i.e. decreased composition dissimilarity among landscapes). These trends were found for both taxonomic diversity and functional diversity, with temporal changes more pronounced for taxonomic than functional diversity. We also found an increase over time in the strength of correlations between environmental variables and diversity both within and among landscapes.

Synthesis. Our results support the idea that human‐induced impacts on biodiversity are strongly scale‐dependent and not necessarily associated with biodiversity loss. This highlights possible ways that human‐driven changes in tree diversity might impact forest resistance and resilience to future global changes.
High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi‐dominated phytoplankton community
Authors: Mausz Michaela A. , Segovia María , Larsen Aud , Berger Stella A. , Egge Jorun K. , Pohnert Georg 
Published: July 2020

SummaryOcean acidification (OA), a consequence of anthropogenic carbon dioxide (CO2) emissions, strongly impacts marine ecosystems. OA also influences iron (Fe) solubility, affecting biogeochemical and ecological processes. We investigated the interactive effects of CO2 and Fe availability on the metabolome response of a natural phytoplankton community. Using mesocosms we exposed phytoplankton to ambient (390 μatm) or future CO2 levels predicted for the year 2100 (900 μatm), combined with ambient (4.5 nM) or high (12 nM) dissolved iron (dFe). By integrating over the whole phytoplankton community, we assigned functional changes based on altered metabolite concentrations. Our study revealed the complexity of phytoplankton metabolism. Metabolic profiles showed three stages in response to treatments and phytoplankton dynamics. Metabolome changes were related to the plankton group contributing respective metabolites, explaining bloom decline and community succession. CO2 and Fe affected metabolic profiles. Most saccharides, fatty acids, amino acids and many sterols significantly correlated with the high dFe treatment at ambient pCO2. High CO2 lowered the abundance of many metabolites irrespective of Fe. However, sugar alcohols accumulated, indicating potential stress. We demonstrate that not only altered species composition but also changes in the metabolic landscape affecting the plankton community may change as a consequence of future high‐CO2 oceans.
Assessing anaerobic gut fungal diversity in herbivores using D1/D2 large ribosomal subunit sequencing and multi‐year isolation
Authors: Hanafy Radwa A. , Johnson Britny , Youssef Noha H. , Elshahed Mostafa S. 
Published: July 2020

SummaryThe anaerobic gut fungi (AGF, Neocallimastigomycota) reside in the alimentary tracts of herbivores where they play a central role in the breakdown of plant material. Here, we report on the development of the hypervariable domains D1/D2 of the large ribosomal subunit (D1/D2 LSU) as a barcoding marker for the AGF. We generated a reference D1/D2 LSU database for all cultured AGF genera, as well as the majority of candidate genera encountered in prior internal transcribed spacer 1 (ITS1)‐based surveys. Subsequently, a D1/D2 LSU‐based diversity survey using long read PacBio SMRT sequencing was conducted on faecal samples from 21 wild and domesticated herbivores. Twenty‐eight genera and candidate genera were identified, including multiple novel lineages that were predominantly, but not exclusively, identified in wild herbivores. Association between certain AGF genera and animal lifestyles, or animal host family was observed. Finally, to address the current paucity of AGF isolates, concurrent isolation efforts utilizing multiple approaches to maximize recovery yielded 216 isolates belonging to 12 different genera, several of which have no prior cultured‐representatives. Our results establish the utility of D1/D2 LSU and PacBio sequencing for AGF diversity surveys, the culturability of multiple AGF taxa, and demonstrate that wild herbivores represent a yet‐untapped reservoir of AGF diversity.