bluuebunny/crossref_metadata_2025_split huggingface dataset:
An isogeometric analysis approach for solving the Reynolds equation in textured piston ring – cylinder liner contacts
Authors: Liu Wei , Huang Zhengdong , Liu Yunhua 
Published: April 2020

Purpose
The purpose of this study is to propose an isogeometric analysis (IGA) approach for solving the Reynolds equation in textured piston ring cylinder liner (PRCL) contacts.

Design/methodology/approach
The texture region is accurately and conveniently expressed by non-uniform rational B-splines (NURBS) besides hydrodynamic pressure and the oil film density ratio is represented in this mathematical form. A quadratic programming method combined with a Lagrange multiplier method is developed to address the cavitation issue.

Findings
The comparison with the results solved by an analytical method has verified the effectiveness of the proposed approach. In the study of the PRCL contact with two-dimensional circular dimple textures, the solution of the IGA approach shows high smoothness and accuracy, and it well satisfies the complementarity condition in the case of cavitation presence.

Originality/value
This paper proposes an IGA approach for solving the Reynolds equation in textured PRCL contacts. Its novelty is reflected in three aspects. First, NURBS functions are simultaneously used to express the solution domain, texture shape, hydrodynamic pressure and oil density ratio. Second, the streamline upwind/Petrov–Galerkin method is adopted to create a weak form for the Reynolds equation that takes the oil density ratio as a first-order unknown variable. Third, a quadratic programming approach is developed to impose the complementarity conditions between the hydrodynamic pressure and the oil density ratio.
Parametric geometry model design of a wingsuit
Authors: Ansari Nazanin , Krzywinski Sybille 
Published: April 2020

PurposeThis paper aims to introduce a process chain spanning from scanned data to computer-aided engineering and further required simulations up to the subsequent production. This approach has the potential to reduce production costs and accelerate the procedure.Design/methodology/approachA parametric computer-aided design (CAD) model of the flyer wearing a wingsuit is created enabling easy changes in its posture and the wingsuit geometry. The objective is to track the influence of geometry changes in a timely manner for following simulation scenarios.FindingsAt the final stage, the two-dimensional (2D) pattern cuts were derived from the developed three-dimensional (3D) wingsuit, and the results were compared with the conventional ones used in the first stages of the wingsuit development.Originality/valueProposing a virtual development process chain is challenging; apart from the fact that the CAD construction of a wingsuit flyer – in itself posing a complicated task – is required at a very early stage of the procedure.
Resource-aware load balancing model for batch of tasks (BoT) with best fit migration policy on heterogeneous distributed computing systems
Authors: Alam Mahfooz , Haidri Raza Abbas , Shahid Mohammad 
Published: April 2020

Purpose
Load balancing is an important issue for a heterogeneous distributed computing system environment that has been proven to be a nondeterministic polynomial time hard problem. This paper aims to propose a resource-aware load balancing (REAL) model for a batch of independent tasks with a centralized load balancer to make the solution appropriate for a practical heterogeneous distributed environment having a migration cost with the objective of maximizing the level of load balancing considering bandwidth requirements for migration of the tasks.

Design/methodology/approach
To achieve the effective schedule, load balancing issues should be addressed and tackled through efficient workload distribution. In this approach, the migration has been carried out in two phases, namely, initial migration and best-fit migration. Using the best-fit policy in migrations helps in the possible performance improvement by minimizing the remaining idle slots on underloaded nodes that remain unentertained during the initial migration.

Findings
The experimental results reveal that the proposed model exhibits a superior performance among the other strategies on considered parameters such as makespan, average utilization and level of load balancing under study for a heterogeneous distributed environment.

Originality/value
Design of the REAL model and a comparative performance evaluation with LBSM and ITSLB have been conducted by using MATLAB 8.5.0.
Information technology and risk management in supply chains
Authors: Fischer-Preßler Diana , Eismann Kathrin , Pietrowski Rafael , Fischbach Kai , Schoder Detlef 
Published: April 2020

PurposeThis paper reviews and classifies research connecting supply chain risk management (SCRM) and information technology (IT) and derives a structured proposal for fruitful research directions.Design/methodology/approachThe authors conducted a systematic literature review of the interplay of SCRM and IT, drawing from major journals in the relevant fields. These findings are enriched by experiences from a three-year international research project.FindingsCurrent research focuses on the role of IT for risk reduction, rather than for risk identification, analysis and monitoring. While much research has investigated operational supply chain risk, fewer insights into disruption risk are available. There is little research on the role of IT in SCRM beyond its potential to enhance information sharing among supply chain partners. To address these gaps, the paper proposes a two-dimensional framework to categorize IT potential for SCRM according to the source and impact of disruption risk on physical supply chain flows, which suggests promising directions for future research.Originality/valueThe paper offers a systematic review to further our understanding of the relationship of SCRM and IT. In addition, it presents and discusses nine areas for further research aimed at mitigating the gaps identified at the intersection of SCRM and IT.
Manifestations of expert power in gatekeeping: a conceptual study
Authors: Savolainen Reijo 
Published: April 2020

PurposeThis study aims to elaborate the picture of the relationships between information and power by examining how expert power appears in the characterizations of gatekeeping presented in the research literature.Design/methodology/approachThis study uses conceptual analysis for examining how expert power is constitutive of the construct of gatekeeper and how people subject to the influence of gatekeeping trust or challenge the expert power attributed to gatekeepers. The study draws on the analysis of 40 key studies on the above issues.FindingsResearchers have mainly constructed the gatekeepers' expert power in terms of superior knowledge and skills applicable to a specific domain, coupled with an ability to control or facilitate access to information. The gatekeeper's expert power has been approached as a contextual factor that facilitates rather than controls access to information. The power relationships between the gatekeepers and those subject to gatekeeping vary contextually, depending on the extent to which the latter have access to alternative sources of information. The findings highlight the need to elaborate the construct of gatekeeping by rethinking its relevance in the networked information environments where the traditional picture of gatekeepers controlling access to information sources is eroding.Research limitations/implicationsAs the study focuses on how expert power figures in gatekeeping, no attention is devoted to the role of social power of other types, for example, reward power and referent power.Originality/valueThe study pioneers by providing an in-depth analysis of the nature of expert power as a constituent of gatekeeping.
Surviving the reform: management usage of the garbage can model during implementation of reform
Authors: Tamir Emanuel , Grabarski Mirit K. 
Published: April 2020

PurposeThis paper aims to apply the garbage can model to identify factors that affect managerial decision-making processes in educational systems undergoing reforms.Design/methodology/approachThis paper used a qualitative approach using semi-structured interviews with 39 teachers and managers in schools undergoing a system-wide reform.FindingsThe paper presents examples for a typology of decision outcomes found in the model and provides explanations for their emergence. It shows that there are many challenges that are associated with reform implementation and suggests factors that need to be taken into account when planning and implementing a reform.Originality/valueSchool management and policy makers can learn about the risks that are associated with garbage can decision-making and the various risk factors. Practical suggestions are given to reduce the probability of suboptimal decision-making.
Entrepreneurship education programme, passion and attitude towards self-employment
Authors: Iyortsuun Akuraun Shadrach , Goyit Meshach G. , Dakung Reuel J. 
Published: April 2020

Purpose
Drawing on the human capital theory and the dual model of passion, this study aims to explore the mediating role of passion on the relationship between entrepreneurship education programme and students’ attitude towards self-employment (SE).

Design/methodology/approach
The proposed research framework was tested on a sample of 445 higher education students in four universities in North-Central Nigeria.

Findings
The results indicated that learning and inspiration account for the variation in students’ attitude towards SE. Furthermore, the study revealed that harmonious and obsessive passion largely mediate the relationship between entrepreneurship education programme and attitude towards SE.

Practical implications
The policy implication is the scaling of policies targeted at encouraging the development of passion given its significant role in the entrepreneurship education programme and attitude towards SE link.

Originality/value
The study has established the importance of human capital theory in explaining the attitude towards SE phenomenon using a multi-theoretical approach and has advanced the theoretical field of affect and its relevance in the field of entrepreneurship.
Sustainable knowledge from consumer perspective addressing microfibre pollution
Authors: Yan Songyi , Henninger Claudia Elisabeth , Jones Celina , McCormick Helen 
Published: April 2020

PurposeThis research investigates sustainable knowledge from a consumer perspective, thereby focussing on the issue of microfibre pollution (MFP) within the context of the athleisure wear industry.Design/methodology/approachThis research is exploratory in nature and supports its findings with 15 in-depth semi-structured interviews with consumers who have an invested interest in athleisure wear and have either a fashion or a textile science background.FindingsThe results provide an insight into how different types of knowledge influence one another and which ones can act as barriers to acting more sustainably and more specifically in reducing MFP.Research limitations/implicationsAlthough the sample size is relatively small, participants were selected carefully to have different backgrounds and lifestyles, thus, providing valuable insights that can be explored further in the future.Practical implicationsCommunication is a key issue that has been identified and which needs to be carefully addressed by providing both quantity and quality.Originality/valueThis research identifies interlinks between different knowledge types and potential barriers that need to be overcome in order to act more sustainably.
Peer and informal learning among hospital doctors
Authors: Riera Claret Carlota , Sahagún Miguel Ángel , Selva Clara 
Published: April 2020

PurposeThe purpose of this paper is to analyse everyday interactions in a workplace from the point of view of organisational learning, informal learning and peer learning, as well as the possible relationships that can be established between all three.Design/methodology/approachInsights from nine months of ethnographic study provided an operational definition of equality in an organisation, a better understanding of interactions and informal learning between peers, and about psycho-social determining factors or contexts that favour the exchange of knowledge in an organisation.FindingsThe findings demonstrate the importance of articulating the three elements (organisational learning, informal learning and peer learning) in a joint interpretative framework. With the results generated, it is proposed to move away from the traditional organisational learning based on knowledge and know-how, to a new perspective focused on sharing and participatory opportunities. In other words, without opportunities to participate, without the support and equal access, the fostering of informal learning can be debatable in terms of democracy.Originality/valueThe results bring the authors closer to being able to design workplace learning strategies that carefully includes the value of participation opportunities and the influence of a dynamic concept of equality. The ethnography in a hospital setting has allowed the authors to gain a better understanding of the contribution of informal learning to the organisation. The focus on the social context and the roles of relationships in informal learning offers new insights into a complex phenomenon.
The impact of ownership structure on the cost of equity in emerging markets
Authors: Faysal Saad , Salehi Mahdi , Moradi Mahdi 
Published: April 2020

Purpose
The purpose of this study is to cover the ownership structure as (institutional ownership and managerial ownership) influencing the cost of equity in emerging markets.

Design/methodology/approach
The authors applied the regression model with the fixed-effect model in the data. Data collected from listed companies in the Iraq-Iran Stock Exchange during 2012-2017.

Findings
The authors found a significant positive associated between institutional ownership and the cost of equity in the Iranian and Iraqi contexts. The results also reveal a significant negative associated between managerial ownership with the cost of equity in the Iranian and Iraqi contexts. This means that when managerial ownership is increased, the cost of equity will be reduced. These results support the role of inside ownership to enhance fixed performance by reducing the cost of equity. So, managerial ownership can be a substitute for all shareholders. Moreover, the results indicate a similarity in the impact of the ownership structure on the cost of equity in the Iraqi and Iranian context, this means the similar elements among west Asian countries.

Research limitations/implications
Financial companies such as banks and investment companies were not listed due to the difference in the nature of their work with the other sectors in the Iranian and Iraqi stock exchanges. Moreover, the authors are heavily constrained as listed companies must continue during the study period to calculate the cost of equity. Therefore, the results are difficult to generalize widely.

Practical implications
This international study will enable investors in, as well as local and international investors to take the appropriate investment decision-making in the capital markets in these countries (Iraq and Iran). Moreover, it contributes significantly to helping corporate governance bloggers in Iraq and Iran understand the role of the ownership structure in corporate governance.

Originality/value
This is the first study of the interaction between institutional ownership, managerial ownership with the cost of equity in Iraq, the study will help complete the knowledge gap with developed markets. The results are important in future research because the authors believe that it is very important for the future to look at better for percentage levels of institutional and managerial ownership in the company ownership. Although the contribution is limited, it will provide a useful guide for more papers in other west Asian countries.
Unique nature of appraisal politics as a work stress: test of stress–strain model from appraisee's perspective
Authors: Dhiman Amit 
Published: April 2020

PurposeThis paper delineates the distinctive nature of appraisal politics perceptions (referenced to organizational politics) experienced by appraisees (APAP) as a form of hindrance work stressor that is more episodic than chronic, salient during the PA rating and reward decisions. The study argues and attempts to establish empirically that due to its distinct nature, it causes both short-term episodic strain and long-term chronic strain. Further, the study investigates the distinctive role played by appraisee's hard and soft influence behaviour as a coping mechanism moderating the influence of APAP as a stressor on strain variables in Indian organizational context that ferments politics.Design/methodology/approachThe data was collected using self-reports from 407 employees in Indian organizations using survey method. Multivariate analyses including moderating tests were used for testing the hypotheses.FindingsOnly the episodic components of the APAP-appraiser's rating politics and pay and promotion politics were significantly related to anxiety felt by appraisees during PA – an episodic measure of strain. All three APAP components were significantly related to the chronic strain measure of dissatisfaction. There was modest support for the role of influence tactics (IT) as a coping mechanism attenuating the negative relation of APAP with the dissatisfaction variables as chronic strain measures. Contrary to the hypothesis, softer tactics exacerbated the APAP–PA anxiety relation, indicating the episodic nature of stressor and strain.Originality/valueThe study contributes significantly to enhance the understanding about the nature of Appraisal politics.
An investigation of policy incentives for delaying public pension benefit claims
Authors: Kitamura Tomoki , Nakashima Kunio 
Published: April 2020

PurposeThe purpose of this study is to examine the potential and cost of policy incentives for individuals to defer public pension (social security) claims.Design/methodology/approachUsing Internet survey experiments, the impacts of introducing three potential policies to defer public pension claims are examined: (1) a tax incentive for private term pension premiums, (2) a tax incentive for private term pension benefits and (3) a tax disincentive for financial asset holdings. Effectiveness of information provision regarding projection of future financial assets is also examined.FindingsTax incentives have a certain impact on deferment of public pension claims. Among incentives, increase of benefits is the most effective one. Providing information regarding future financial assets reduces incentives.Originality/valueThis study is original in measuring cost for delaying public pension claims according to incentives and information provision.
Translocation domain of botulinum neurotoxin A subtype 2 potently induces entry into neuronal cells
Authors: Kohda Tomoko , Tsukamoto Kentaro , Torii Yasushi , Kozaki Shunji , Mukamoto Masafumi 
Published: April 2020

AbstractBotulinum neurotoxin (BoNT) is the causative agent of botulism in humans and animals. Only BoNT serotype A subtype 1 (BoNT/A1) is used clinically because of its high potency and long duration of action. BoNT/A1 and BoNT/A subtype 2 (BoNT/A2) have a high degree of amino acid sequence similarity in the light chain (LC) (96%), whereas their N‐and C‐terminal heavy chain (HN and HC) differ by 13%. The LC acts as a zinc‐dependent endopeptidase, HN as the translocation domain, and HC as the receptor‐binding domain. BoNT/A2 and BoNT/A1 had similar potency in the mouse bioassay, but BoNT/A2 entered faster and more efficiently into neuronal cells. To identify the domains responsible for these characteristics, HN of BoNT/A1 and BoNT/A2 was exchanged to construct chimeric BoNT/A121 and BoNT/A212. After expression in Escherichia coli, chimeric and wild‐type BoNT/As were purified as single‐chain proteins and activated by conversion to disulfide‐linked dichains. The toxicities of recombinant wild‐type and chimeric BoNT/As were similar, but dropped to 60% compared with the values of native BoNT/As. The relative orders of SNAP‐25 cleavage activity in neuronal cells and toxicity differed. BoNT/A121 and recombinant BoNT/A2 have similar SNAP‐25 cleavage activity. BoNT/A2 HN is possibly responsible for the higher potency of BoNT/A2 than BoNT/A1.
Effects of crossing distance on fitness components in the carnivorous plant Pinguicula moranensis (Lentibulariaceae)
Authors: Villegas Sara Gabriela , Ospina‐Garcés Sandra Milena , Fornoni Juan , Domínguez César Augusto , Alcalá Raúl Ernesto 
Published: April 2020

AbstractPlant species vary in the pollination distance at which negative fitness effects are expressed, and it has been proposed that optimal mating should occur at a distance large enough to diminish the risks of inbreeding, but short enough to prevent outbreeding depression. In a natural population of Pinguicula moranensis we assessed the fitness of plants (seeds per fruit) and their progeny (germination and seedling survival) as a function of pollination distance by hand‐pollinating with donors from five distances: 0 m (self‐fertilization), 1, 4 and 460 m (within‐population) and 9,900 m (between‐population) under in situ and ex situ conditions. We found that average values for fitness components were consistently lower in the in situ experiment than in the ex situ experiment. Under both conditions, the self‐fertilization treatment had the lowest values. Inbreeding depression values were high (0.94 to 0.98), corresponding with the values expected for an outcrossing species subjected to self‐fertilization. Overall, no evidence of outbreeding depression was detected. Considering that our experiment was restricted to one single donor population and one recipient population, our results indicate that despite the within‐population patchy distribution of individuals, biparental inbreeding could occur at low rates, due in part to short seed dispersal distance. However, pollen movement of at least 1 m is apparently sufficient to reverse negative effects.
miR‐874 directly targets AQP3 to inhibit cell proliferation, mobility and EMT in non‐small cell lung cancer
Authors: Wang Shuhua , Wu Yuanyuan , Yang Shenghua , Liu Xunchao , Lu Yong , Liu Fengxia , Li Guixia , Tian Guirong 
Published: April 2020

BackgroundNon‐small cell lung cancer (NSCLC) is a major type of lung cancer with high morbidity and high mortality. miR‐874 has been determined to play a role in tumor suppression in several cancers. The purpose of our study was to detect the biological mechanisms of miR‐874 and AQP3 in NSCLC.Methods: CCK‐8 and Transwell assays were utilized to perform cell invasion.Western blot was employed to evaluate the protein expression.Results: The expression of miR‐874 was lower in NSCLC tissues than that of corresponding adjacent nontumor tissues. Downregulation of miR‐874 predicted a poor prognosis in NSCLC. The cell proliferation and mobility were suppressed by overexpression of miR‐874, which were promoted by knockdown of miR‐874 in A549 and H1299 cells. miR‐874 mediated the expression of AQP3 by directly binding to the 3′‐untranslated regions (UTR) of AQP3 mRNA in NSCLC cells. Moreover, miR‐874 inhibited the proliferation and mobility by targeting AQP3 and inhibited the PI3K/AKT signaling pathway in A549 cells. miR‐874 inhibited the growth of NSCLC in vivo.Conclusions: In conclusion, miR‐874 inhibited proliferation and mobility by regulating AQP3 in NSCLC. The newly identified miR‐874/AQP3 axis provides novel insight into the pathogenesis of NSCLC.