bluuebunny/crossref_metadata_2025_split huggingface dataset:
Real-time integrated turboprop take-off model under propeller-wing interaction
Authors: Wang Yiwei , Huang Xianghua , Huang Jiaqin 
Published: July 2019

Purpose
The purpose of the paper is to build a real-time integrated turboprop take-off model which fully takes the interaction between diverse parts of aircraft into consideration. Turboprops have the advantage of short take-off distance derived from propeller-wing interaction. Traditional turboprop take-off model is inappropriate because interactions between diverse parts of aircrafts are not fully considered or longer calculation time is required. To make full use of the advantage of short take-off distance, a real-time integrated take-off model is needed for analysing flight performance and developing an integrated propeller-engine-aircraft control system.

Design/methodology/approach
A new integrated three-degree-of-freedom take-off model is developed, which takes a modified propeller model, a wing model and the predominant propeller-wing interaction into account. The propeller model, based on strip theory, overcomes the shortage that the strip theory does not work if the angle of propeller axis and inflow velocity is non-zero. The wing model uses the lifting line method. The proposed propeller-wing interaction model simplifies the complex propeller-wing flow field. Simulations of ATR42 take-off model are conducted in the following three modes: propeller-wing interaction is ignored; influence of propeller on wing is considered only; and propeller-wing interaction is considered.

Findings
Comparison of take-off distances and flight parameters shows that propeller-wing interaction has a vital impact on take-off distance and flight parameters of turboprops.

Practical implications
The real-time integrated take-off model provides time-history flight parameters, which plays an important role in an integrated propeller-engine-aircraft control system to analyse and improve flight performance.

Originality/value
The real-time integrated take-off model is more precise because propeller-wing interaction is considered. Each calculation step costs less than 20 ms, which meets real-time calculation requirements. The modified propeller model overcomes the shortage of strip theory.
Improvement of students problem-solving skills through project execution planning in civil engineering and construction management education
Authors: Zhang Jingxiao , Xie Haiyan , Li Hui 
Published: July 2019

Purpose
The purpose of this paper is to improve students’ problem-solving skills in civil engineering and construction management education.

Design/methodology/approach
The design includes structured role-playing as a pedagogical method in 21 project teams with a total of 82 undergraduate students at Chang’an University, China, in a nine-week Building Information Modeling (BIM) capstone course. The methodology is a teaching–learning experiment in a civil engineering education program with a detailed description of the empirical case and assessment instruments. The approach is to train project execution planning in a capstone course by role-playing with a real-world project using the procedures of the BIM Project Execution Planning Guide (PEPG) and process mapping.

Findings
The study finds that students can significantly improve their problem-solving skills through planning and role-specific communication during projects.

Research limitations/implications
The research sample needs to be expanded from senior-level undergraduate students to consider the different backgrounds and motivations of students.

Practical implications
This pedagogy is helpful to educators who are interested in group learning with a real-world project; the procedures of BIM PEPG; self-chosen responsibilities within a capstone course time framework; raising the awareness of the importance of planning; information exchange; and team cooperation.

Originality/value
This paper fulfills an identified need to study how role-playing in information and technology rich environments can be structured.
Integrating international student mobility in the belt and road initiative
Authors: Wu Xuan , Chan Wing Kit 
Published: July 2019

Purpose
Before the turn of the century, taking overseas students was more about a diplomatic issue dominated by the state in China, for which reason this section is relatively independent within the higher education system. However, evidence from a series of new policy documents and their impacts suggests that international student mobility (ISM) has been intensively shaped by the central government in the desire to promote its national strategy, namely the belt and road initiative. ISM policy, although with a significant proportion marketized, was introduced for a clear purpose of cultural diplomacy. The paper aims to discuss these issues.

Design/methodology/approach
Looking beyond the debate of market-driven vs state-dominated, this paper attempts to provide a thorough understanding of this changing pattern based on examination of key changes of policy statements along with official data analysis.

Findings
This paper argues that the new pattern must be understood against a context of a hierarchy of higher education institutes in contemporary China: a sector led by a small number of prestigious universities generously funded by the central government with a large number of ordinary universities underfunded and eager to generate income. Prestigious institutes enroll international students to satisfy performance indicators listed by policies like “Double First-rate”; other universities, benefiting from the reputation and momentum generated by the top ones, take self-funded students for profit.

Originality/value
By making good use of both performance indicators and market motives, the country managed to move a state-dominated ISM policy in the twentieth century into the existing state-steering marketization model and made China a major destination for overseas study.
Characteristics of the breather waves, rogue waves and solitary waves in an extended (3 + 1)-dimensional Kadomtsev–Petviashvili equation
Authors: Wang Hui , Tian Shou-Fu , Chen Yi 
Published: July 2019

PurposeThe purpose of this paper is to study the breather waves, rogue waves and solitary waves of an extended (3 + 1)-dimensional Kadomtsev–Petviashvili (KP) equation, which can be used to depict many nonlinear phenomena in fluid dynamics and plasma physics.Design/methodology/approachThe authors apply the Bell’s polynomial approach, the homoclinic test technique and Hirota’s bilinear method to find the breather waves, rogue waves and solitary waves of the extended (3 + 1)-dimensional KP equation.FindingsThe results imply that the extended (3 + 1)-dimensional KP equation has breather wave, rogue wave and solitary wave solutions. Meanwhile, the authors provide the graphical analysis of such solutions to better understand their dynamical behavior.Originality/valueThese results may help us to further study the local structure and the interaction of solutions in KP-type equations. The authors hope that the results provided in this work can help enrich the dynamic behavior of such equations.
The politics of the executive, legislative veto players and foreign debt
Authors: Choi Seung-Whan , Luo Shali 
Published: July 2019

Purpose
The purpose of this paper is to examine a curvilinear effect of legislative constraints on foreign debt.

Design/methodology/approach
A cross-sectional, time-series data analysis of 68 developing countries during the period from 1981 to 1999 was performed.

Findings
Foreign borrowing is most likely to increase at both low and high levels of legislative constraints, while it is most likely to decrease at moderate levels.

Originality/value
The paper is a first-cut empirical analysis of a curvilinear relationship between legislative constraints and foreign debt.
Integrating to one program for re-accreditation
Authors: Michael Boniface 
Published: July 2019

Purpose
The purpose of this paper is to delineate lessons for business schools seeking re-accreditation and that face previous peer-review improvement expectations, strategic and operational imperatives similar to those faced at College of Business Administration (CBA) in University of the State Capital, all pseudonyms to mask their true identity.

Design/methodology/approach
Based on qualitative case study method, CBA’s Assessment Director, Gabriel Mouton, again a pseudonym, serves as the central protagonist whose interactive dialogical and technology-enabled change processes provide instructive practical lessons around the management of assurance of learning (AoL) for re-accreditation.

Findings
This paper offers a tripartite change focus in AoL for re-accreditation: balancing program goal integration with discipline differentiation, adopting an interactive dialogical shared governance process over a top-down or bottom-up process and technology-enabled straddling program depth and breadth.

Research limitations/implications
This paper is unique to CBA’s path-historical institutional change experiences in the USA with rich-shared faculty governance that may need to be first developed before emulation in institutions where such a tradition is absent.

Practical implications
The experiences narrated in this paper offer universal lessons for business schools aspiring to continuously improve their AoL and, in the process, uphold program meaning and quality standards for stakeholder relevance and re-accreditation.

Social implications
The experiences narrated in this paper offers lessons for tying program quality to external stakeholders’ expectations in the community, including for international business schools.

Originality/value
This paper advances an original tripartite change focus specifically relevant for business schools seeking re-accreditation and that are concurrently grappling with multiple strategic and operational imperatives.
A critique of the progress of eTourism technology acceptance research: time for a hike?
Authors: Pourfakhimi Shahab , Duncan Tara , Coetzee Willem 
Published: July 2019

PurposeThe purpose of this study is to evaluate eTourism technology acceptance literature to illustrate current gaps in the field and suggest two alternative perspectives that could be adopted.Design/methodology/approachA review of academic literature in the field of eTourism technology acceptance was undertaken combining a systematic keyword-based search and snowballing techniques leading to the identification of relevant academic journal articles published since the year 2000.FindingsWhile the field of eTourism technology acceptance research has grown substantially over the past few decades, this study highlights that the majority of this research seems to have been conducted within a narrow theoretical scope. The study suggests that this has led to contemporary theoretical and philosophical advancements in understanding the psychological, sociological and neuroscientific aspects of consumer behaviour not yet being mirrored in the eTourism technology acceptance research.Research limitations/implicationsThis study invites researchers to adapt alternative theoretical perspectives to create a more in-depth understanding of aspects of technology acceptance behaviour that have yet to be understood. Two distinct alternative perspectives, NeuroIS and interpretivism, are suggested.Practical implicationsThis study assists researchers in developing alternative research agendas and diversifying the theoretical foundations of eTourism technology acceptance research.Originality/valueeTourism technology acceptance research risks being left behind if it does not begin to think beyond current theoretical conceptions of consumer behaviour research. This study contributes to the wider literature by highlighting how eTourism literature is falling behind and by suggesting two innovative alternatives that allow eTourism research an exciting way forward.
Seismic wavefield modelling in two‐phase media including undulating topography with the modified Biot/squirt model by a curvilinear‐grid finite difference method
Authors: Yang Shang‐bei , Bai Chao‐ying , Greenhalgh Stewart 
Published: July 2019

ABSTRACTIn this paper, we deduced the corresponding first‐order velocity–stress equation for curvilinear coordinates from the first‐order velocity–stress equation based on the modified Biot/squirt model for a two‐dimensional two‐phase medium. The equations are then numerically solved by an optimized high‐order non‐staggered finite difference scheme, that is, the dispersion relation preserving/optimization MacCormack scheme. To implement undulating free‐surface topography, we derive an analytical relationship between the derivatives of the particle velocity components and use the compact finite‐difference scheme plus a traction‐image method. In the undulating free surface and the undulating subsurface interface of two‐phase medium, the complex reflected wave and transmitted wave can be clearly recognized in the numerical simulation results. The simulation results show that the curvilinear‐grid finite‐difference method, which uses a body‐conforming grid to describe the undulating surface, can accurately reduce the numerical scattering effect of seismic wave propagation caused by the use of ladder‐shaped grid to fit the surfaces when undulating topography is present in a two‐phase isotropic medium.
Lead soaps formation and biodiversity in a XVIII Century wax seal coloured with minium
Authors: Šoltys Katarína , Planý Matej , Biocca Paola , Vianello Valentina , Bučková Mária , Puškárová Andrea , Sclocchi Maria Carla , Colaizzi Piero , Bicchieri Marina , Pangallo Domenico , Pinzari Flavia 
Published: July 2019

SummaryA multidisciplinary approach was carried out in order to study the biodeterioration and the associated microbiome of a XVIII Century wax seal coloured with minium. A small wax seal fragment was observed by scanning electron microscopy combined with energy dispersive spectroscopy in non‐destructive mode. The same object was analysed by Raman and Fourier‐transform infrared spectroscopy. The identification of the microbiota growing on the seal was performed with both a culture‐dependent strategy, combined with hydrolytic assays, and high‐throughput sequencing using the MinION platform. The whole bacterial 16S rRNA gene and the fungal markers ITS and 28S rRNA were targeted. It was observed that the carnauba wax coloured with lead tetroxide (minium) was covered by a biofilm consisting of a network of filaments and other structures of microbial origin. The culture‐dependent and culture‐independent investigations showed the presence of a complex microbiota composed mainly by fungal members, which demonstrated interesting properties related to lipids and lead processing. The formation of lead soaps and secondary biogenic minerals was also described.
Aspiration, austerity and ableism: to what extent are the 2014 SEND reforms supporting young people with a life‐limiting impairment and their families to get the lives they want?
Authors: Hoskin Janet 
Published: July 2019

In England, legislation introduced in 2014 to reform support for children and young people with special educational needs and disability (SEND) from birth to 25 years of age has been described as the biggest change in SEND for 30 years. Support now focuses on improved outcomes for young people with SEND, and aims to be more aspirational and person‐centred, with the child and family ‘at the heart of the process’. This could be viewed as timely for young people with Duchenne muscular dystrophy (DMD), a genetic life‐limiting impairment, who, due to improved care and interventions, are now living longer. The aim of this small‐scale qualitative study is to explore whether young people with DMD, their parents and schools feel that these reforms are able to support young people with life‐limiting impairments to get the lives they want. Findings suggest that parents and children with DMD welcome the new person‐centred philosophy, but are still forced to fight for funding and support in a system of reduced resources. Austerity and its role in the narrative of neo‐liberalism is also explored.
Dietary preferences and diabetic risk in China: A large‐scale nationwide Internet data‐based study
Authors: Zhao Zhiyun , Li Mian , Li Chao , Wang Tiange , Xu Yu , Zhan Zhizheng , Dong Weishan , Shen Zhiyong , Xu Min , Lu Jieli , Chen Yuhong , Lai Shenghan , Fan Wei , Bi Yufang , Wang Weiqing , Ning Guang 
Published: July 2019

AbstractBackgroundUnhealthy diet is one of the important risk factors of diabetes, which is one of the major public health problems in China. The Internet tools provide large‐scale passively collected data that show people's dietary preferences and their relationship with diabetes risk.Methods212 341 708 individuals' dietary preference labels were created based on Internet data from online search and shopping software. Metabolic data obtained from the 2010 China Noncommunicable Disease Surveillance, which had 98 658 participants, was used to estimate the relation between dietary preferences geographical distribution and diabetes risk.ResultsChinese dietary preferences had different geographical distribution, which is related to the local climate and consumption level. Fried food preference proportion distribution was significantly positively correlated with diabetes prevalence, hypertension prevalence and body mass index (BMI). Similarly, grilled food preference proportion distribution had significantly positive correlation with the prevalence of diabetes and hypertension. In contrast, spicy food preference proportion distribution was negatively correlated with diabetes prevalence. Sweet food preference proportion distribution was positively related to diabetes prevalence. Using dietary preferences data to predict regional prevalence of diabetes, hypertension and BMI, the average values of error (95% CI) between the three paired predicted and observed values were 9.8% (6.9%‐12.7%), 7.5% (5.0%‐10.0%) and 1.6% (1.2%‐2.0%), respectively.ConclusionsFried food, grilled food, and sweet food preferences were positively related to diabetes risk whereas spicy food preference was negatively correlated with diabetes risk. Dietary preferences based on passively collected Internet data could be used to predict regional prevalence of diabetes, hypertension, and BMI and showed good value for public health monitoring.
Early‐onset aging and mitochondrial defects associated with loss of histone acetyltransferase 1 (Hat1)
Authors: Nagarajan Prabakaran , Agudelo Garcia Paula A. , Iyer Chitra C. , Popova Liudmila V. , Arnold William D. , Parthun Mark R. 
Published: July 2019

AbstractHistone acetyltransferase 1 (Hat1) is responsible for the acetylation of newly synthesized histone H4 on lysines 5 and 12 during the process of chromatin assembly. To understand the broader biological role of Hat1, we have generated a conditional mouse knockout model of this enzyme. We previously reported that Hat1 is required for viability and important for mammalian development and genome stability. In this study, we show that haploinsufficiency of Hat1 results in a significant decrease in lifespan. Defects observed in Hat1+/− mice are consistent with an early‐onset aging phenotype. These include lordokyphosis (hunchback), muscle atrophy, minor growth retardation, reduced subcutaneous fat, cancer, and paralysis. In addition, the expression of Hat1 is linked to the normal aging process as Hat1 mRNA and protein becomes undetectable in many tissues in old mice. At the cellular level, fibroblasts from Hat1 haploinsufficient embryos undergo early senescence and accumulate high levels of p21. Hat1+/− mouse embryonic fibroblasts (MEFs) display modest increases in endogenous DNA damage but have significantly higher levels of reactive oxygen species (ROS). Consistently, further studies show that Hat1−/− MEFs exhibit mitochondrial defects suggesting a critical role for Hat1 in mitochondrial function. Taken together, these data show that loss of Hat1 induces multiple hallmarks of early‐onset aging.
Exit as governance: do blockholders affect corporate innovation in large US firms?
Authors: Helling Axel R. , Maury Benjamin , Liljeblom Eva 
Published: July 2019

AbstractUsing a sample of large US firms, this study shows that blockholders in combination with liquidity can contribute positively to innovation (R&D investments). We contribute to the literature on managerial myopia that has focused mainly on large owners and their type (short‐term/long‐term). Our results are in line with recent theoretical studies arguing that blockholders in combination with market liquidity can mitigate managerial myopia, as suggested by the exit model of governance. The results indicate that blockholders can be efficient in resolving agency problems and that they can enhance long‐term prosperity, even when the individual blockholder investment horizon may not be long.
A diagnostic solution for haemostasis laboratories for patients taking direct oral anticoagulants using DOAC‐Remove
Authors: Cox‐Morton Sally , MacDonald Stephen , Thomas Will 
Published: July 2019

SummaryThis study describes the use of a simple charcoal product (DOAC‐RemoveTM) to allow haemostasis assays on patients taking direct oral anticoagulants (DOAC). In the proposed algorithm, patients taking DOAC are screened using the dilute thrombin time (dTT) and anti‐Xa assay. If either are positive then DOAC‐Remove is utilised. In a validation, DOAC‐Remove did not interfere with coagulation testing in normal plasma or in patients on DOAC with a known lupus anticoagulant (LA). Of 1566 routine patient samples tested, 125 (8%) had evidence of anti‐Xa activity (>0·1 iu/ml) or prolonged dTT suggestive of either a direct/indirect Xa inhibitor or direct thrombin inhibitor. All of these 125 patients had a prolonged dilute Russell viper venom time (dRVVT) screening test and 106 had a LA detected by dRVVT after phospholipid correction. After DOAC‐Remove, 91 patients (73%) had a negative dRVVT screen. After further investigation only 9 (7%) had a positive LA. DOAC‐Remove prevented 5% of patients having a LA inappropriately detected. DOAC did not significantly affect the LA activated partial thromboplastin time (aPTT) ratio, protein S antigen or protein C activity. DOAC cause low intrinsic factor assays, high prothrombin time/aPTT and high activated protein C sensitivity ratio, which DOAC‐Remove reversed (P < 0·05). Despite recommendations, haemostasis testing for patients on DOAC continues; this algorithm aids diagnostic accuracy. Further validation and research are warranted.