bluuebunny/crossref_metadata_2025_split huggingface dataset:
An instrument for measuring the influence of consumers' cultural values on functional food perception
Authors: Neupane Saugat , Chimhundu Ranga , Chan K.C. 
Published: March 2021

PurposeThe purpose of the article is to develop an instrument for measuring the influence of consumers' cultural values on functional food perception.Design/methodology/approachThe study is quantitative in nature and builds on an earlier qualitative study that employed in-depth interviews, thematic analysis and constant comparative analysis to construct a survey instrument which initially had 53 items. The quantitative study involved an online survey that was conducted using this instrument, which resulted in 365 complete cases that included 173 Anglo-Australian, 102 Chinese and 90 Indian respondents living in Australia. The survey data were subjected to exploratory factor analysis using Principal axis factoring, with Promax rotation.FindingsThe research has validated that functional food perception is dependent upon consumers' cultural values. The results of the exploratory factor analysis provided a six-factor instrument with 32 items.Research limitations/implicationsOnly three ethnic groups were involved in this study and that is not entirely representative of Australia or other countries. The instrument, however, will allow researchers in the field of functional food to extend the research to other diverse communities.Practical implicationsThe instrument will further enable functional food producers and marketers to develop effective marketing strategies based on their knowledge of the influence of cultural values on functional food perception.Originality/valueThe instrument developed from this study, for measuring consumers' functional food perception based on cultural values, is the first of its kind.
The strategic alignment between supply chain process management maturity model and competitive strategy
Authors: Santos Inêz Manuele dos , Mota Caroline Maria de Miranda , Alencar Luciana Hazin 
Published: March 2021

PurposeThis paper aims to propose a conceptual framework to integrate a maturity model to the supply chain (SC) strategy, in order to understand how a maturity model can be useful in diagnosing and developing the capabilities of SC business processes (BPs) to meet SC's strategy.Design/methodology/approachThe proposed framework was based on an SC strategy framework, in which a maturity model was added in order to diagnose and identify SC process capabilities that need to be developed, per maturity level, according to the type of SC strategy and the competitive strategy. A grid was proposed to analyze the relationship between them. An exploratory case study (multiple cases) was applied to verify the applicability of the model.FindingsFindings indicate that a maturity model can delimit and align, as far as the company needs to reach, the SC strategic interests with the company's competitive objectives. However, some barriers and facilitating factors implicit can impact on this alignment. It is also noted that the maximum level of SC management (SCM) maturity may not be in the strategic interest of the company.Originality/valueDue to the few empirical studies on the value of maturity models, this research contributes to the understanding of the usefulness of an SC process maturity model for the SC strategy. Moreover, the framework can show how a maturity model can serve as a parameter and guide to develop the capabilities of processes, resources and activities to meet the SC strategy and the reach of the competitive strategy.
Data envelopment analysis using the binary-data
Authors: Pourmahmoud Jafar , Gholam Azad Maedeh 
Published: March 2021

Purpose
The purpose of this paper is to propose the data envelopment analysis (DEA) model that can be used as binary-valued data. Often the basic DEA models were developed by assuming that all of the data are non-negative. However, there are situations where all data are binary. As an example, the information on many diseases in health care is binary data. The existence of binary data in traditional DEA models may change the behavior of the production possibility set (PPS). This study defines a binary summation operator, expresses the modified principles and introduces the extracted PPS of axioms. Furthermore, this study proposes a binary integer programming of DEA (BIP-DEA) for assessing the efficiency scores to use as an alternate tool in prediction.

Design/methodology/approach
In this study, the extracted PPS of modified axioms and the BIP-DEA model for assessing the efficiency score is proposed.

Findings
The binary integer model was proposed to eliminate the challenges of the binary-value data in DEA.

Originality/value
The importance of the proposed model for many fields including the health-care industry is that it can predict the occurrence or non-occurrence of the events, using binary data. This model has been applied to evaluate the most important risk factors for stroke disease and mechanical disorders. The targets set by this model can help to diagnose earlier the disease and increase the patients’ chances of recovery.
Economic growth, carbon dioxide emissions and energy consumption in Algeria: a wavelet coherence approach
Authors: Chekouri Sidi Mohammed , Chibi Abderrahim , Benbouziane Mohamed 
Published: March 2021

PurposeThe world is nowadays facing major environmental damage and climate change everywhere. Carbon dioxide emissions are major causes of such change. It is in this respect that the current study provides a fresh insight into the dynamic nexus between energy consumption (EC), economic growth (EG) and CO2 emissions in Algeria, as it is considered as one of the top CO2 emitters in Africa.Design/methodology/approachThe authors use the wavelet approaches and Breitung and Candelon (2006) causality test to gauge the association between EC, EG and CO2 emissions over the period 1971–2018. Specifically, this study implements the wavelet power spectrum (WPS) to identify the power and variability of each variable at different time scales. The wavelet coherence, phase differences and partial wavelet coherence are also used to assess the co-movement and lead lag relationship between economic growth, energy consumption and CO2 emissions over different time scale. Finally, Breitung and Candelon (2006) causality test is used to find the causality among variables.FindingsThe wavelet power spectrum results indicate that economic growth, energy consumption and CO2 emissions share common strong variance in the medium and long run. Furthermore, the wavelet coherence results suggest that there is a significant co-movement between EG and CO2 emissions, and EG is the leading variable for CO2 emissions and EC. The results also unveil that both EG and EC cause CO2 emissions both in short and long run. The results suggest that Algeria should take suitable measures towards the promotion of renewable energy sources.Originality/valueThe present empirical study filled the literature gap of applying the wavelet approach and frequency domain spectral causality test to examine this relevant issue for Algeria.
Shadow economy, institutions and environmental pollution: insights from Africa
Authors: Dada James Temitope , Ajide Folorunsho Monsur , Sharimakin Akinwumi 
Published: March 2021

PurposeThis study investigates the effect of shadow economy on environmental pollution and the role of institutional quality in moderating the impact in African countries between 1991 and 2015.Design/methodology/approachThe study employs three pollutant variables namely: carbon dioxide emissions per capita, methane emission and nitrous oxide emission as robustness check. Also, battery of methodologies; ordinary least squares, fixed effects and system generalised method of moments are used to drive out the conclusions of this study.FindingsThe findings reveal that shadow economy and institutional quality contribute significantly to environmental pollution in Africa. Further, the interactive effect of shadow economy and institutional quality worsens environmental quality in the region. This reveals that weak institutional quality recorded in the region increases the level of shadow economy, thereby intensifying environmental pollution.Practical implicationsThe study concludes that weak institutional framework in the region reinforces shadow economy and environmental pollution. Hence, findings from this study can help policymakers in the region to better understand the role of institutional quality in reducing shadow economy and environmental pollution.Originality/valueThis study enriches one’s understanding on the role of institutional quality in the relationship between environmental quality and shadow economy in African context. It investigates the direct and indirect impact of institutions and shadow economy on environmental quality. The study also uses three different robust variables to measure environmental pollution (carbon dioxide (CO2) emissions per capita, methane emission and nitrous oxide emission) for sensitivity analysis.
Mesenchymal plasticity of devil facial tumour cells during in vivo vaccine and immunotherapy trials
Authors: Patchett Amanda L , Tovar Cesar , Blackburn Nicholas B , Woods Gregory M , Lyons A Bruce 
Published: March 2021

AbstractImmune evasion is critical to the growth and survival of cancer cells. This is especially pertinent to transmissible cancers, which evade immune detection across genetically diverse hosts. The Tasmanian devil (Sarcophilus harrisii) is threatened by the emergence of Devil Facial Tumour Disease (DFTD), comprising two transmissible cancers (DFT1 and DFT2). The development of effective prophylactic vaccines and therapies against DFTD has been restricted by an incomplete understanding of how allogeneic DFT1 and DFT2 cells maintain immune evasion upon activation of tumour‐specific immune responses. In this study, we used RNA sequencing to examine tumours from three experimental DFT1 cases. Two devils received a vaccine prior to inoculation with live DFT1 cells, providing an opportunity to explore changes to DFT1 cancers under immune pressure. Analysis of DFT1 in the non‐immunised devil revealed a ‘myelinating Schwann cell’ phenotype, reflecting both natural DFT1 cancers and the DFT1 cell line used for the experimental challenge. Comparatively, immunised devils exhibited a ‘dedifferentiated mesenchymal’ DFT1 phenotype. A third ‘immune‐enriched’ phenotype, characterised by increased PDL1 and CTLA‐4 expression, was detected in a DFT1 tumour that arose after immunotherapy. In response to immune pressure, mesenchymal plasticity and upregulation of immune checkpoint molecules are used by human cancers to evade immune responses. Similar mechanisms are associated with immune evasion by DFTD cancers, providing novel insights that will inform modification of DFTD vaccines. As DFT1 and DFT2 are clonal cancers transmitted across genetically distinct hosts, the Tasmanian devil provides a ‘natural’ disease model for more broadly exploring these immune evasion mechanisms in cancer.
WeChat‐assisted health education improves care ability, reduces care burden and improves quality of life of parents of infants after enterostomy
Authors: Gao Xiao‐Tan , Huang Ke‐Chu , Cui Xu , Zhou Chao‐Ming 
Published: March 2021

AimThe purpose of this study was to explore the effect of implementing WeChat‐assisted health education for parents of infants after enterostomy.MethodsThis study retrospectively analysed the clinical data of 106 infants after enterostomy whose parents received WeChat‐assisted health education in our hospital from June 2017 to June 2019. The clinical data of 92 infants after enterostomy whose parents received traditional health education in our hospital from May 2015 to May 2017 were selected as the control group.ResultsThe care ability of the WeChat health education group was significantly better than that of the traditional health education group (P < 0.05). The care burden of the WeChat health education group was significantly lower than that of the traditional health education group (P < 0.05). The results of the WHOQOL‐BREF showed that the quality of life for WeChat health education group was significantly higher than that for the traditional health education group (P < 0.05). The incidence of complications, including mucosal oedema, allergic dermatitis, faecal dermatitis and avulsion injury, in the WeChat health education group was significantly lower than that in the traditional health education group.ConclusionThe implementation of WeChat‐assisted health education for parents of infants after enterostomy can effectively improve parents' care ability, reduce parents' care burden, improve parents' quality of life and reduce the incidence of complications in patients.
Storifying routines and routinising stories: A dualistic subject positioning analysis of controversies about constraints on patient autonomy
Authors: Smith Simon 
Published: March 2021

AbstractThis paper uses subject positioning theory to explore how conflicts between autonomy and protection are managed in the justification of controversial care arrangements for patients with mental/neurological illness. Its basic argument is twofold: firstly, to justify or propose care arrangements at strategic or contentious moments, actors position illness as an actant and make it present in talk‐in‐interaction, exploiting alignments and misalignments between the there and then of reported events and the above and beyond of shared societal discourses to say what matters and what's to be done here and now; secondly, the introduction of authoritative voices from elsewhere involves imbricating narrative and routine sequences in order to prioritise different subjectivities. Dilemmas opposing autonomy and protection may seem less intractable if we adopt a corresponding perspective interplay between narrative and routine situational readings.
Arabidopsis JMJ17 promotes cotyledon greening during de‐etiolation by repressing genes involved in tetrapyrrole biosynthesis in etiolated seedlings
Authors: Islam Md. Torikul , Wang Long‐Chi , Chen I‐Ju , Lo Kuan‐Lin , Lo Wan‐Sheng 
Published: March 2021

Summary

Arabidopsis histone H3 lysine 4 (H3K4) demethylases play crucial roles in several developmental processes, but their involvement in seedling establishment remain unexplored.

Here, we show that Arabidopsis JUMONJI DOMAIN‐CONTAINING PROTEIN17 (JMJ17), an H3K4me3 demethylase, is involved in cotyledon greening during seedling establishment. Dark‐grown seedlings of jmj17 accumulated a high concentration of protochlorophyllide, an intermediate metabolite in the tetrapyrrole biosynthesis (TPB) pathway that generates chlorophyll (Chl) during photomorphogenesis. Upon light irradiation, jmj17 mutants displayed decreased cotyledon greening and reduced Chl level compared with the wild‐type; overexpression of JMJ17 completely rescued the jmj17‐5 phenotype.

Transcriptomics analysis uncovered that several genes encoding key enzymes involved in TPB were upregulated in etiolated jmj17 seedlings. Consistently, chromatin immunoprecipitation‐quantitative PCR revealed elevated H3K4me3 level at the promoters of target genes. Chromatin association of JMJ17 was diminished upon light exposure. Furthermore, JMJ17 interacted with PHYTOCHROME INTERACTING FACTOR1 in the yeast two‐hybrid assay.

JMJ17 binds directly to gene promoters to demethylate H3K4me3 to suppress PROTOCHLOROPHYLLIDE OXIDOREDUCTASE C expression and TPB in the dark. Light results in de‐repression of gene expression to modulate seedling greening during de‐etiolation. Our study reveals a new role for histone demethylase JMJ17 in controlling cotyledon greening in etiolated seedlings during the dark‐to‐light transition.
Four-Bar Linkage Synthesis Methods for Two Precision Positions Combined With N Quasi-Positions
Authors: Mirth John A. 
Published: March 2021

Abstract
Mechanisms seldom need to pass through more than one or two exact positions. The method of quasi-position synthesis combines a number of approximate or “quasi” positions with two exact positions to design four-bar linkages that will produce a specified, bounded motion. Quasi-position synthesis allows for the optimization of some linkage characteristic (such as link lengths or transmission angles) by using the three variables that describe a single quasi-position. Procedures for circuit and transmission angle rectification are also easily incorporated into the quasi-position synthesis method.
Numerical Solution of Some Three-State Random Vibration Problems
Authors: Wojtkiewicz S. F. , Bergman L. A. , Spencer B. F. 
Published: March 2021

Abstract
This paper reports some of the recent efforts by the authors to examine the random vibration of mechanical systems of large dimension. A finite element solution method for the stationary three-dimensional Fokker-Planck equation, employing sparse storage and iterative solution strategies, is outlined and then applied to several representative systems. The first of these is a linear oscillator subjected to a first order linearly filtered Gaussian white noise process. This problem is used to verify and assess the accuracy of the method. After verification, two Duffing systems are analyzed, one exhibiting unimodal and the other bimodal response characteristics. Finally, some comparisons of the finite element results with those from Monte Carlo simulation are made for the two nonlinear systems.
Updating the Damping Matrix Using Frequency Response Data
Authors: Reix Cécile , Gerard Alain , Tombini Christian 
Published: March 2021

Abstract
This paper presents a method for the updating of the damping matrix of a linear dynamic system.
For this dynamic study, it is presumed that the characteristic mass and stiffness matrices are perfectly known thanks to the updating of the experimental and calculed frequencies and mode shapes as from a finit element model. Furthermore, it is accepted that damping has only a minor effect on the frequencies and mode shapes of a structure (a hypothesis that has been verified for structures with low damping). It is proposed to adjuste the coefficients of the [D] hysteretic damping matrix as from the superposition of the experimental and analytical Frequency Response Functions (FRF). The frequencies and mode shapes are extracted from the solutions of the caracteristic equation (3) resulting from the classic dynamic equation. An analytical FRF is calculed and then used to establish the sensitivity matrix, translating the influence of the updating parameters on the FRF. To update the [D] matrix, we use a non-linear weighted least squares estimation.
Dynamic Analysis of Geared Rotor-Bearing Systems by the Transfer Matrix Method
Authors: Choi Siu-Tong , Mau Sheng-Yang 
Published: March 2021

Abstract
In this paper, an analytical study of the dynamic characteristics of geared rotor-bearing systems by the transfer matrix method is presented. Rotating shafts are modeled as Timoshenko beam with shear deformation and gyroscopic effects taken into account. The gear mesh is modeled as a pair of rigid disks connected by a spring-damper set and a transmission-error exciter. The transfer matrix of a gear mesh is developed. The coupling motions of the lateral and torsional vibration are studied. In free vibration analysis of geared rotor systems, natural frequencies and corresponding mode shapes, and the whirl frequencies under different spin speeds are determined. Effects of bearing stiffness, isotropic and orthotropic bearings, pressure angle of the gear mesh are studied. In steady-state vibration analysis, responses due to the excitation of mass unbalance and the transmission error are studied. Parametric characteristics of geared rotor systems are discussed.
Fracture Mechanics Analysis of a Last Stage Steam Turbine Blade Failure
Authors: Rao J. S. 
Published: March 2021

Abstract
In the early morning hours on March 31, 1993, a major accident took place in a nuclear power plant located at Narora in Northern India. Blade # 52 of the last stage has shown a clear fatigue fracture at the first landing of its root The fracture surface clearly indicated three zones, the first zone with a crack initiating at the strain raiser point and propagating over a period of time, a second zone where the blade was subjected to a multiple impact type of loading and fresh crack initiation and propagation and the third zone consisting of unstable fracture. This paper describes the analysis of these cracks based on Stress Intensity Factor approach.
Friction Dampers: Measurement, Modelling and Application to Blade Vibration Control
Authors: Sanliturk Kenan Y. , Stanbridge Anthony B. , Ewins David J. 
Published: March 2021

Abstract
This paper describes a procedure that combines the measurement of dry-friction contact behaviour, its theoretical modelling and the analysis of structures with friction joints. The experimental part describes a friction damper test rig which is specifically designed for measuring the dynamic force-response characteristics of a joint. A hybrid mathematical model, which is a combination of the traditional macro- and micro-slip models, is proposed to represent the joint characteristics and it is shown that such a model represents the measured behaviour better than any of the traditional ones. The final part of the paper demonstrates the procedure applied to a blade-damper test structure and which includes testing, analysis and correlation of both sets of results. The non-linear response levels are predicted using a dedicated program based on the Harmonic Balance Method and it is found that the proposed analysis procedure can predict the amount of response reduction, the optimum friction damper load and the locked natural frequency quite accurately.
The Method of Successive Decrease and the Concept of Harmonic Wave Filter in Structural Wave Control
Authors: Wang Dajun , Wang Quan , Leung A. Y. T. 
Published: March 2021

Abstract
Most of the available vibration control methods for flexible structures are based on the modal control method, which, however, sometimes meets with problems. For examples, the problem of spillover has not been solved adequately. And, for flexible large space structures with closely spaced natural frequencies, it is very difficult to use modal method to treat vibration control problems because the modes corresponding to closely spaced and repeated frequencies can not be computed accurately.
In recent years, the method of structural wave control has been developed, but it has not been studied sufficiently. The object of this paper is an attempt to solve some of the existing problems raised due to the application of the modal control method. A wave control method — the method of successive decrease is set up at first, which is aimed at one harmonic wave. Then, a new design method in wave control is proposed, based on the above method. The problem of control spillover is analyzed and the concept of harmonic wave filter is introduced.
As an example, the problem of the control of structures with closely spaced natural frequencies is treated by both the method of modal control and the method of successive decrease. The numerical results show that the method of successive decrease is more effective than the method of modal control. It proves that the method of successive decrease and the concept of harmonic wave filter is promising in solving the problems of structural control.