bluuebunny/crossref_metadata_2025_split huggingface dataset:
A numerical study on the steady flow in molten salt pump under various conditions for improved hydraulic performance
Authors: Cheng Wenjie , Gu Boqin , Shao Chunlei 
Published: July 2017

Purpose
This paper aims to figure out the steady flow status in the molten salt pump under various temperatures and blade number conditions, and give good insight on the structure and temperature-dependent efficiencies of all pump cases. Finally, the main objective of present work is to get best working condition and blade numbers for optimized hydraulic performance.

Design/methodology/approach
The steady flow in the molten salt pump was studied numerically based on the three-dimensional Reynolds-Averaged Navier–Stokes equations and the standard k-ε turbulence model. Under different temperature conditions, the internal flow fields in the pumps with different blade number were systematically simulated. Besides, a quantitative backflow analysis method was proposed for further investigation.

Findings
With the molten salt fluid temperature, sharply increasing from 160°C to 480°C, the static pressure decreases gently in all pump cases, and seven-blades pump has the least backflow under low flow rate condition. The efficiencies of all pump cases increase slowly at low temperature (about 160 to 320°C), but there is almost no variation at high temperature, and obviously seven-blades pump has the best efficiency and head in all pump cases over the wide range of temperatures. The seven-blades pump has the best performance in all selected pump cases.

Originality/value
The steady flow in molten salt pumps was systematically studied under various temperature and blade number conditions for the first time. A quantitative backflow analysis method was proposed first for further investigation on the local flow status in the molten salt pump. A definition about the low velocity region in molten salt pumps was built up to account for whether the studied pump gains most energy. This method can help us to know how to improve the efficiencies of molten salt pumps.
Cultural intelligence and leadership style in the education sector
Authors: Aldhaheri Ali 
Published: July 2017

PurposeSchools in UAE are multicultural in nature. In this context, cultural intelligence (CQ) is a tool, which can increase an individual’s ability to interact with people outside his/her culture. The purpose of this paper is to explore the perceptions of the school leaders regarding the key influences of cultural intelligence on their ability to adapt their leadership style in the Abu Dhabi Education Sector.Design/methodology/approachAn extensive review of the literature was carried out to acknowledge the cultural intelligence and leadership style adaptability concepts. This research has adopted a qualitative method of inquiry. Data for the study have been collected from three focus groups with 14 schools leaders in the Emirate of Abu Dhabi.FindingsThis pilot study reveals that cultural intelligence has some influence on the school leaders’ ability to adapt their leadership style within a diverse work environment. This influence is complex in nature and multiple factors have been identified.Research limitations/implicationsThe main limitations of this study are associated with the small sample size. Regarding the implications, while this study was conducted in a UAE cultural context, it can be extended to other Gulf countries. Future research should prompt educational leaders, administrators, students, and research academics to further consider the impact of cultural intelligence on leadership style.Practical implicationsThis study contributes towards cultural intelligence literature. Schools should provide cultural training to managers before appointing them to leadership positions, which helps in understanding the culture which they are going to operate in, and effectively manage their drives, workforce, students, and the community.Originality/valueThe paper highlights six core factors that influence the ability of school leaders to adapt their leadership style in culturally diverse environments. These preliminary factors need to be examined further to validate the dimensions of leadership adaptability in various contexts.
Graduate attributes and employability skills
Authors: Belwal Rakesh , Priyadarshi Pushpendra , Al Fazari Mariam Humaid 
Published: July 2017

PurposeSupply and demand characteristics, influenced by the pre- and post-oil economy of Oman, have caused unemployment challenges to Omani graduates. The purpose of this paper is to explore the most common graduate attributes as they apply to graduates’ employability in Oman.Design/methodology/approachThe study uses the principles of “hypotheticodeductive logic” and inferential analysis using a combination of focus group and survey approach. Using an online mode of data collection targeting the past three cohorts of graduates from a prominent University in Oman, the study analyses and presents several insights into graduate attributes and employability issues.FindingsThe research finds that the domain of educational institutions in Oman is mainly restricted to the basic generic skills in developing the graduate attributes. Students’ perspectives on employers’ selection criteria reveal that computing skills, the ability to work in teams, English language proficiency, prior training, and the graduate’s personality are the five most significant employability skills in Oman. Currently, there is little interaction among higher educational institutions, alumni, and industry in Oman for boosting the employability of graduates.Practical implicationsThe study is highly relevant from the policy perspective in Oman. All the stakeholders in Oman need to come together to define employability skills prudently by expanding the domain beyond generic skills.Originality/valueThe study is important in the context of Oman due to a shortage of studies that look at the graduate attributes from the lens of employability besides addressing concerns about unemployment.
Antecedent and outcomes of innovation-based growth strategies for exporting SMEs
Authors: Azari Mohammad Javadinia , Madsen Tage Koed , Moen Øystein 
Published: July 2017

PurposeThe purpose of this paper is to investigate the antecedent and outcomes of different types of innovation as complementary growth strategies, which may enable exporting small- to medium-sized enterprises (SMEs) to achieve success in export markets.Design/methodology/approachThis study is based upon a quantitative survey on Norwegian exporting SMEs. A total of 380 questionnaires were received representing 16.8 per cent response rate. A structural equation modelling analysis is carried out on the sample.FindingsThe study finds positive and significant associations between the firm’s growth ambition and the pursuance of product and business model innovations. Moreover, the firm’s export degree and scope has a significant and positive association with its product innovation strategy, but the association with its business model innovation is significantly negative.Research limitations/implicationsThe study’s findings indicate that future studies should incorporate different types of innovation strategies since their associations with export performance differ substantially. Treating innovation as a general construct appears to be too simplistic.Practical implicationsThe study’s results indicate that focus on product innovation enhances the export performance of SMEs, but that focus on business model innovation has a negative impact. The latter may be too costly and distract focus from the firm’s core competences, whereas product innovation can be assumed to provide further competitive strength.Originality/valueBy taking a holistic approach towards innovation, this study addresses a gap in the literature on innovation and exporting in SMEs in order to investigate the association between different types of innovation-based growth strategies and the firms’ export prosperity.
The modern Canadian restaurant: food for thought
Authors: Gregorash Bill J. 
Published: July 2017

Purpose
The purpose of this paper is to present the key food experience factors that affect a consumer’s restaurant meal enjoyment. It considers the effects on the dining experience that come from enhancements in today’s restaurants and the advent of the foodie customer. The paper reviews the modern restaurant scene in Canada and how best practices have created non-events despite differentiation attempts among producers of hospitality experiences.

Design/methodology/approach
In this paper, the literature regarding current practices in modern restaurants is reviewed, along with a discussion of the foodie consumer. Analysis draws on the theory that many transactions in hospitality are mundane and few offer meta-hospitality memorable moments.

Findings
With the expanding range of restaurant choice across Canada – serving better-than-ever food options in green environments in unique servicescapes – it would appear that these are the golden years of the food service industry. Yet the reality could be that consumers are walking away feeling that all gastronomic experiences are equally mundane.

Practical implications
An examination of the way we approach food service as entertainment and escape is called for. Examining hospitality trends is part of what makes the industry a source of fascination for consumers and researchers.

Originality/value
The author’s culinary background as a professional chef and his recent academic experience, including his doctoral research in a related topic, enriches the originality of this article.
How should Canadian tourism embrace the disruption caused by the sharing economy?
Authors: Sovani Altaf , Jayawardena Chandana (Chandi) 
Published: July 2017

Purpose
This paper aims to answer two questions: What is the sharing economy? and How is the sharing economy affecting tourism in Canada?

Design/methodology/approach
The foundation of this paper was laid during a major industry event held in Ottawa in 2016 – the Ontario Tourism Summit, an annual industry conference organized by the Tourism Industry Association of Ontario (TIAO), attended by 650 industry participants. This paper is based on presentations made at the summit. The article provides key information on Airbnb and the role of TIAO in the context of shared economy.

Findings
Companies such as Airbnb, Uber and Turo have made the concept of sharing economies an everyday concept. As sharing economy is considered as a phenomenon that is here to stay, Canadian tourism and hospitality industries should embrace the disruption caused by it and ensure that this is done for mutual benefit of all stakeholders. Five key suggestions are made by the authors in their conclusions.

Practical implications
As this paper is mainly based on the authors’ viewpoints, prior to implementing their recommendations, further dialogue with all relevant stakeholders is needed.

Originality/value
This paper draws upon the authors’ experience working with Canadian tourism companies and incorporates their thoughts for practical solutions.
Relationships between forest cover and fish diversity in the Amazon River floodplain
Authors: Arantes Caroline C. , Winemiller Kirk O. , Petrere Miguel , Castello Leandro , Hess Laura L. , Freitas Carlos E. C. 
Published: July 2017

AbstractHabitat degradation leads to biodiversity loss and concomitant changes in ecosystem processes. Tropical river floodplains are highly threatened by land cover changes and support high biodiversity and important ecosystem services, but the extent to which changes in floodplain land cover affect fish biodiversity remains unknown.We combined fish and environmental data collected in situ and satellite‐mapped landscape features to evaluate how fish species with different ecological strategies and assemblage structures respond to deforestation in floodplains of the Amazon River. We surveyed 462 floodplain habitats distributed along a gradient of land cover, from largely forested to severely deforested. Rather than analyse only taxonomic metrics, we employed an integrative approach that simultaneously considers different aspects of fish biodiversity (i.e. β diversity and taxonomic and functional assemblage structure) to facilitate mechanistic interpretations of the influence of land cover.Spatial patterns of fish biodiversity in the Amazon River floodplain were strongly associated with forest cover as well as local environmental conditions linked to landscape gradients. Several species and functional groups defined by life‐history, feeding, swimming/microhabitat‐use strategies were positively associated with forest cover. Other species, including some that would usually be considered habitat generalists and species directly dependent on autochthonous resources (e.g. planktivores), were most common in areas dominated by herbaceous vegetation or open water habitats associated with the opposite extreme of the forest cover gradient. β diversity and the degree of uniqueness of species combinations within habitats were also positively associated with forest cover.Synthesis and applications. Our results demonstrating that spatial patterns of fish biodiversity are associated with forest cover, indicate that deforestation of floodplains of the Amazon River results in spatial homogenization of fish assemblages and reduced functional diversity at both local and regional scales. Floodplains world‐wide have undergone major land cover changes, with forest loss projected to increase during the next decades. Conserving fish diversity in these ecosystems requires protecting mosaics of both aquatic habitats and floodplain vegetation, with sufficient forest cover being critically important.
Generalization of the QST framework in hierarchically structured populations: Impacts of inbreeding and dominance
Authors: Cubry Philippe , Scotti Ivan , Oddou‐Muratorio Sylvie , Lefèvre François 
Published: July 2017

AbstractQST is a differentiation parameter based on the decomposition of the genetic variance of a trait. In the case of additive inheritance and absence of selection, it is analogous to the genic differentiation measured on individual loci, FST. Thus, QST−FST comparison is used to infer selection: selective divergence when QST > FST, or convergence when QST < FST. The definition of Q‐statistics was extended to two‐level hierarchical population structures with Hardy–Weinberg equilibrium. Here, we generalize the Q‐statistics framework to any hierarchical population structure. First, we developed the analytical definition of hierarchical Q‐statistics for populations not at Hardy–Weinberg equilibrium. We show that the Q‐statistics values obtained with the Hardy–Weinberg definition are lower than their corresponding F‐statistics when FIS > 0 (higher when FIS < 0). Then, we used an island model simulation approach to investigate the impact of inbreeding and dominance on the QST−FST framework in a hierarchical population structure. We show that, while differentiation at the lower hierarchical level (QSR) is a monotonic function of migration, differentiation at the upper level (QRT) is not. In the case of additive inheritance, we show that inbreeding inflates the variance of QRT, which can increase the frequency of QRT > FRT cases. We also show that dominance drastically reduces Q‐statistics below F‐statistics for any level of the hierarchy. Therefore, high values of Q‐statistics are good indicators of selection, but low values are not in the case of dominance.
Relationships in consumer‐directed care: An integrative literature review
Authors: Cash Tracee , Moyle Wendy , O'Dwyer Siobhan 
Published: July 2017

ObjectiveTo undertake an integrative review of the literature on relationships between community aged care recipients, family carers and care providers under consumer‐directed care (CDC).MethodsSeven databases were systematically searched. Peer‐reviewed and grey literature on CDC between 1998 and 2014 were assessed using an integrative literature review (ILR) framework. Search terms included CDC, self‐directed care, direct payments, community aged care, community dwelling and older adults. Full‐text copies were assessed against the inclusion criteria.ResultsFifteen studies met the inclusion criteria. This ILR found no research with a specific focus on caregiving relationships for older adults. The literature did however identify relational issues such as support, planning and provider attitude as fundamental to the success of CDC.ConclusionRelationships within the caregiving triad have important implications for the way CDC is enacted, particularly when the care recipient has dementia, suggesting this population as a priority for future research.
Predictive factors for lymph node metastasis in early gastric cancer with signet ring cell histology: a meta‐analysis
Authors: Zhao Xudong , Cai Aizhen , Xi Hongqing , Song Yanjing , Wang Yi , Li Hua , Li Peiyu , Chen Lin 
Published: July 2017

AbstractBackgroundLess invasive surgery is widely used in the treatment of early gastric cancer; however, no definite guidelines exist regarding indications for less invasive surgery to treat early gastric cancer with signet ring cell histology. The aim of this study was to identify risk factors for lymph node metastasis (LNM) in early signet ring cell carcinoma (SRC). An extensive search of PubMed, Embase and the Cochrane library was performed for pertinent articles involving early SRC and LNM.MethodsEligible data (gender, depth of invasion, lymphovascular invasion, size, ulceration, macroscopic type and location) were extracted from the included studies and systematically reviewed via a meta‐analysis. Review Manager version 5.3 was used to perform the data processing. The Newcastle–Ottawa Scale was utilized to evaluate the quality of the included articles.ResultsFourteen studies were included in the final analysis. After meta‐analysis, female gender, submucosal invasion, lymphovascular invasion and size >20 mm were associated with LNM in early SRC.ConclusionFour variables were identified as risk factors for LNM in early SRC. The significance of the results of the present study should be further confirmed in more early SRC patients for future clinical use.
Impact of an acute surgical unit on patient outcomes in South Australia
Authors: Kinnear Ned , Britten‐Jones Philip , Hennessey Derek , Lin Diwei , Lituri Darren , Prasannan Subhita , Otto Greg 
Published: July 2017

BackgroundCompared with traditional (Trad) systems of managing emergency surgical presentations, the acute surgical unit (ASU) model provides an on‐site registrar, on‐call surgeon and dedicated emergency theatre, 24 h/day. To date, there have been no Australasian ASU studies of >3000 patients, nor from South Australia.MethodsA retrospective historical control study compared the outcomes of adults admitted to the Lyell McEwin Hospital in the Trad (1 February 2010 to 31 July 2012) and ASU periods (1 August 2012 to 31 January 2015), who underwent an emergency general surgical procedure.ResultsA total of 4074 patients met inclusion criteria; 1688 and 2386 patients during the Trad and ASU periods, respectively. The cohorts were not significantly different in median age, gender or American Society of Anesthesiologists scores. Compared with the Trad period, improved median time from emergency department referral to theatre start (19.4 h versus 17.9 h, P < 0.0001) and median length of stay (2.32 days versus 2.06 days, P < 0.0001) were observed during the ASU period. The proportion of procedures performed in‐hours was similar (77.9% versus 79.6%, P = 0.18). Secondary outcomes of rates of intensive care unit admission, emergency department representation within 30 days, in‐hospital mortality and 1‐year all‐cause mortality were unchanged.ConclusionInstitution of an ASU was associated with decreased time from referral to theatre and reduced length of stay. The proportion of cases performed in‐hours did not change. This may be related to the high Trad period rate and increased workload. These findings represent the largest Australasian study of an ASU and support the current model of care.
Laparoscopic low anterior resection for rectal cancer after Whitehead's hemorrhoidectomy: A case report
Authors: Takemoto Yoshihiro , Harada Eijiro , Takeuchi Yuriko , Kawamura Daichi , Suehiro Yuuki , Kugimiya Naruji , Hamano Kimikazu 
Published: July 2017

AbstractA 65‐year‐old man presented with bloody stool. Colonoscopy revealed a raised tumor in the rectum, above the peritoneal reflection. He underwent endoscopic mucosal resection, but the pathological findings suggested the possibility of residual cancer. We performed laparoscopic low anterior resection using a circular stapling instrument for additional curative surgery. However, we could not insert the shaft of the endoscopic circular stapler from the anus because of anal stenosis due to Whitehead's hemorrhoidectomy the patient had undergone 20 years earlier. Therefore, we planned to use a linear stapler to insert an anvil into the rectum. The cartridge‐carrying instrument was inserted from the sigmoidal side, and we performed a side‐to‐end anastomosis. The patient was discharged without anastomotic leakage or defecation disorder. We present this case because laparoscopic low anterior resection for rectal cancer with anal stenosis has not been previously reported.
Aligning responsible business practices: A case study
Authors: Weller Angeli E. 
Published: July 2017

AbstractThis article offers an in‐depth case study of a global high tech manufacturer that aligned its ethics and compliance, corporate social responsibility, and sustainability practices. Few large companies organize their responsible business practices this way, despite conceptual relevance and calls to manage them comprehensively. A communities of practice theoretical lens suggests that intentional effort would be needed to bridge meaning between the relevant managers and practices in order to achieve alignment. The findings call attention to the important role played by employees who broker understanding between managers and practices, and the boundary objects used to create shared meaning and engagement. They also highlight that an organizing logic is necessary but not sufficient to align practices. This study describes the dynamics of alignment and provides a practical road map for scholars and managers interested in understanding how responsible business practices may be collectively organized.
Cox Regression with Dependent Error in Covariates
Authors: Huang Yijian , Wang Ching-Yun 
Published: July 2017

SummaryMany survival studies have error-contaminated covariates due to the lack of a gold standard of measurement. Furthermore, the error distribution can depend on the true covariates but the structure may be difficult to characterize; heteroscedasticity is a common manifestation. We suggest a novel dependent measurement error model with minimal assumptions on the dependence structure, and propose a new functional modeling method for Cox regression when an instrumental variable is available. This proposal accommodates much more general error contamination than existing approaches including nonparametric correction methods of Huang and Wang (2000, Journal of the American Statistical Association95, 1209–1219; 2006, Statistica Sinica16, 861–881). The estimated regression coefficients are consistent and asymptotically normal, and a consistent variance estimate is provided for inference. Simulations demonstrate that the procedure performs well even under substantial error contamination. Illustration with a clinical study is provided.