bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemical vegetable safety in China: “supermarketisation” and its limits
Authors: Alita Lita , Dries Liesbeth , Oosterveer Peter 
Published: April 2020

PurposeThe purpose of this paper is to analyze the process of supermarketization in the vegetable retail sector in China and its impact on food safety.Design/methodology/approachData from food safety reports by the Chinese Food and Drug Administration (CFDA) are used to investigate the degree of vegetable safety in different value chain types. To assess the predictors of the degree of vegetable safety, a logistic regression model is applied.FindingsSupermarketization has led to the reorganization of the vegetables provision system, through closer coordination along the supply chain and the use of secured production bases. We identify four types of vegetable value chains in China based on their form of coordination. Supermarkets improve vegetable safety even when they rely on external suppliers, but also wet markets perform significantly better than other small-scale retailers in terms of vegetable safety.Originality/valueThe study has expanded the knowledge of the supermarketization in urban China by collecting data from CFDA. Furthermore, the study used the theory of food value chain to understand determinant factors in securing food safety. Moreover, this study reveals that wet markets also have prospects in solving vegetable safety problems in China, especially in underdeveloped areas.
Ambidextrous leadership and employee innovation in public museums
Authors: Kung Ching-Wen , Uen Jin Feng , Lin Shou-Chi 
Published: April 2020

PurposeThe purpose of this paper is to explore the impact of ambidextrous leadership on employees’ innovative behaviors in public museums based on the ambidexterity theory of leadership for innovation. It also examines the mediating mechanism of organizational climate for innovation in public museums.Design/methodology/approachMultisource survey data were obtained from 30 human resource managers, 74 department managers and 237 employees of Taiwanese public museums. Multilevel path analysis was conducted to test the proposed model.FindingsAmbidextrous leadership has the most significant effect on employees’ innovative behaviors. Moreover, organizational climate for innovation has a mediating effect on the relationship between ambidextrous leadership and employees’ innovative behaviors.Practical implicationsThis study provides a new perspective on dynamic and complementary ambidextrous leadership, thereby providing important practical implications for innovation management in public museums. Specifically, leaders should apply ambidextrous leadership behaviors in their daily operations to develop an organizational climate for innovation and facilitate employees’ innovative behaviors.Originality/valueThis study is the first to explore the influence of ambidextrous leadership in a museum. In addition, it examines the mediating effect of organizational climate for innovation to explain the effect of ambidextrous leadership on employees’ innovative behaviors. The findings provide valuable insights for both researchers and managers of public and private entities.
Dynamic transportation planning for prefabricated component supply chain
Authors: Zhang Hong , Yu Lu 
Published: April 2020

PurposePrefabricated construction concerns off-site production, multi-mode transportation and on-site installation of the prefabricated components, which are interdependent and dynamically interactive, so coordination among the multiple stages along the prefabricated component supply chain (PCSC) is indispensable. This study aims to solve the dynamic transportation planning problem for the PCSC by addressing the interdependency, dynamic interaction and coordination among the multiple stages and different objectives of the stakeholders.Design/methodology/approachThe PCSC is analyzed and then the formulation for the dynamic transportation planning problem is developed based on the just-in-time (JIT) strategy. The particle swarm optimization (PSO) algorithm is applied to solve the dynamic optimization problem.FindingsThe proposed dynamic transportation planning method for the PCSC regarding component supplier selection, transportation planning for means, routes and schedule, site layout planning and transportation plan adjustment is able to facilitate coordination among the multiple stages by addressing their interdependencies and dynamic interactions, as well as different economic objectives of the stakeholders such as suppliers or the contractor.Originality/valueThe study helps to achieve the advantages of prefabricated construction by prompting coordination among multiple stages of the PCSC by realizing different benefits of the stakeholders. In addition, it provides the stakeholders with the competitive bidding prices and the evaluation data for the bids quote. Meanwhile, it contributes to the domain knowledge of the PCSC management with regard to the viewpoint of coordination and integration of multiple stages rather than only one stage as well as the dynamic optimization model based on the JIT strategy and the PSO algorithm.
A variety of completely integrable Calogero–Bogoyavlenskii–Schiff equations with time-dependent coefficients
Authors: Wazwaz Abdul-Majid 
Published: April 2020

Purpose
The purpose of this paper is to introduce a variety of new completely integrable Calogero–Bogoyavlenskii–Schiff (CBS) equations with time-dependent coefficients. The author obtains multiple soliton solutions and multiple complex soliton solutions for each of the developed models.

Design/methodology/approach
The newly developed models with time-dependent coefficients have been handled by using the simplified Hirota’s method. Moreover, multiple complex soliton solutions are derived by using complex Hirota’s criteria.

Findings
The developed models exhibit complete integrability, for specific determined functions, by investigating the compatibility conditions for each model.

Research limitations/implications
The paper presents an efficient algorithm for handling integrable equations with analytic time-dependent coefficients.

Practical implications
The work presents new integrable equations with a variety of time-dependent coefficients. The author showed that integrable equations with time-dependent coefficients give real and complex soliton solutions.

Social implications
This study presents useful algorithms for finding and studying integrable equations with time-dependent coefficients.

Originality/value
The paper gives new integrable CBS equations which appear in propagation of waves and provide a variety of multiple real and complex soliton solutions.
Reconstruction of the thermal properties in a wave-type model of bio-heat transfer
Authors: Alosaimi Moataz , Lesnic Daniel , Niesen Jitse 
Published: April 2020

Purpose
This study aims to at numerically retrieve five constant dimensional thermo-physical properties of a biological tissue from dimensionless boundary temperature measurements.

Design/methodology/approach
The thermal-wave model of bio-heat transfer is used as an appropriate model because of its realism in situations in which the heat flux is extremely high or low and imposed over a short duration of time. For the numerical discretization, an unconditionally stable finite difference scheme used as a direct solver is developed. The sensitivity coefficients of the dimensionless boundary temperature measurements with respect to five constant dimensionless parameters appearing in a non-dimensionalised version of the governing hyperbolic model are computed. The retrieval of those dimensionless parameters, from both exact and noisy measurements, is successfully achieved by using a minimization procedure based on the MATLAB optimization toolbox routine lsqnonlin. The values of the five-dimensional parameters are recovered by inverting a nonlinear system of algebraic equations connecting those parameters to the dimensionless parameters whose values have already been recovered.

Findings
Accurate and stable numerical solutions for the unknown thermo-physical properties of a biological tissue from dimensionless boundary temperature measurements are obtained using the proposed numerical procedure.

Research limitations/implications
The current investigation is limited to the retrieval of constant physical properties, but future work will investigate the reconstruction of the space-dependent blood perfusion coefficient.

Practical implications
As noise inherently present in practical measurements is inverted, the paper is of practical significance and models a real-world situation.

Social implications
The findings of the present paper are of considerable significance and interest to practitioners in the biomedical engineering and medical physics sectors.

Originality/value
In comparison to Alkhwaji et al. (2012), the novelty and contribution of this work are as follows: considering the more general and realistic thermal-wave model of bio-heat transfer, accounting for a relaxation time; allowing for the tissue to have a finite size; and reconstructing five thermally significant dimensional parameters.
Thermal investigation of fully wet longitudinal porous fin of functionally graded material
Authors: Sowmya G. , B.J. Gireesha , Khan Muhammad Ijaz , Momani Shaher , Hayat Tasawar 
Published: April 2020

Purpose
The purpose of this study is to conduct a numerical computation to analyse the thermal attribute and heat transfer phenomenon of a fully wetted porous fin of a longitudinal profile. The fin considered is that of a functionally graded material (FGM). Based on the spatial dependency of thermal conductivity, three cases such as linear, quadratic and exponential FGMs are analysed.

Design/methodology/approach
The governing equations are nondimensionalised and solved by applying Runge-Kutta-Fehlberg fourth-fifth order technique.

Findings
The parametric investigation is executed to access the significance of the pertinent parameters on the thermal feature of the fin and heat transmit rate. The outcomes are portrayed in a graphical form.

Originality/value
No such study has yet been published in the literature.
IFRS adoption/reporting and auditor fees: the conditional effect of audit firm size and tenure
Authors: El Guindy Medhat N. , Trabelsi Nadia Sbei 
Published: April 2020

PurposeThis paper aims to investigate the impact of International Financial Reporting Standards (IFRS) adoption on audit and non-audit fees in the UK setting. The study investigates whether UK firms adopting IFRS for the first time or reporting under IFRS, in general, are being charged higher audit and non-audit fees and whether this impact is conditional on audit firm size and tenure.Design/methodology/approachUsing empirical data for UK listed firms from 2003-2007, the paper uses a regression model that explains audit and non-audit fees by independent variables measuring auditors’ and auditees’ characteristics including IFRS adoption and reporting. Additional regressions with interaction terms were performed to test the hypothetical conditional impact of auditor size and audit firm tenure on the above-mentioned association.FindingsAudit and non-audit fees increase significantly for companies adopting IFRS for the first time and this increase is persistent during later years. In addition, results suggest that both Big four and non-Big four auditors charge higher audit and non-audit fees to their clients adopting or reporting under IFRS in a similar manner. Furthermore, findings indicate that audit firms increase audit and non-audit fees for old and new clients using IFRS which suggests no low-balling effect is detected.Research limitations/implicationsResults reported in this study provide insights to regulators in jurisdictions similar to the UK regarding the cost of IFRS adoption which includes higher audit and non-audit fees imposed by both Big four and non-Big four audit firms. In addition, this study argues, to some extent, against the notion that auditors may charge lower fees in the early years of the audit engagement to win new audit clients.Originality/valueTo the best of the knowledge, the findings are unique at two levels. First, the paper provides evidence on the cost of using IFRS in the UK jurisdiction which was not explored by previous research. Second, the paper investigates the potential conditional effect of auditor size and audit tenure on the association between IFRS adoption and auditors’ fees.
Study on the influence of atmospheric environment on the morphology and conductivity of nanoscale copper films sputtered on polyester substrates
Authors: Meng Lingling , Huang Xinmin , Wei Qufu , Ji Dandan , Wang Qianwen 
Published: April 2020

PurposeThe paper aims to evaluate the influence of atmospheric environment on the conductivity of nanoscale copper films sputtered on polyester substrates; process parameters of optimal conductivity were firstly analyzed by orthogonal test scheme design, and then the surface morphology, crystal structures and conductivity of samples were performed after samples were placed in the atmospheric conditions for some time according to the optimization of process parameters.Design/methodology/approachNanoscale copper films was prepared by RF (radio frequency) magnetron sputtering and low-temperature plasma technology with polyester fabrics as substrates and metal copper as targets under the conditions of low temperature and high vacuum.FindingsThe experimental results showed that copper films were broken and the continuity of samples was destroyed after 60 days, while exposed in atmospheric environment for 90 days, cracks of copper films gradually expanded, there was no change in the atomic species for samples placed in the atmospheric conditions. However, the conductivity of the samples hardly had changed with the ambient temperature, humidity and degree of water washing, which is mainly decided by the internal structures of substrates.Originality/valueThis paper has some theoretical and applicable value to the functional textile.
Integration between real estate and stock markets: new evidence from Pakistan
Authors: Yousaf Imran , Ali Shoaib 
Published: April 2020

PurposeThis study aims to empirically examine the relationship between real estate and stock market of Pakistan.Design/methodology/approachThe data of two real estate indices (house price index and plot price index) are taken for the Pakistan and its four big cities, i.e. Lahore, Karachi, Rawalpindi and Islamabad. It estimates the integration between series by applying the Johansen cointegration test. Moreover, the vector error correction model is applied to examine the short and long-run causal relationships between series.FindingsThe findings show that the real estate markets are cointegrated with the stock market. They imply that the real estate and stock markets are good substitutes in investment allocation, but investors cannot get the benefit of diversification by making a portfolio of real estate and stock markets in Pakistan. Moreover, the long-run causality is observed from majority house markets to the stock market, whereas short-run causality is evident from majority plot markets to the stock market. Hence, the real estate market leads the stock market in the short run and long run, suggesting the credit-price effect in the majority of real estate markets in Pakistan. These causality results are helpful for investors in the forecasting of real estate and stock markets in Pakistan.Research limitations/implicationsThe limitation of the study is the lower number of observations (107), because house and land prices are only available in monthly frequency from January 2011 in Pakistan.Originality/valueTo the best of the authors’ knowledge, no researcher has investigated the real estate and stock market nexus in Pakistan. Therefore, this study focuses on examining the relationship between the real estate and stock market of Pakistan. The link between real estate and stock markets will provide useful insights to the portfolio managers, real estate companies, property agents, stockbrokers and investors.
Offline programming method and implementation of industrial robot grinding based on VTK
Authors: Hong Lei , Wang Baosheng , Yang XiaoLan , Wang Yuguo , Lin Zhong 
Published: April 2020

Purpose
The purpose of this paper is to present a robotic off-line programming method for freeform surface grinding based on visualization toolkit (VTK). Nowadays, manual grinding and traditional robot on-line programming are difficult to ensure the surface grinding accuracy, thus off-line programming is gradually used in grinding, however, several problems are needed to be resolved which include: off-programming environment depends on the third-party CAD software, leads to insufficient self-development flexibility; single support for robot type or workpiece model format contributes to lack of versatility; grinding point data depends on external data calculation and import process, causes human-computer interaction deterioration.

Design/methodology/approach
In this method, the visualization pipeline and observer/command mode of VTK are used to display the 3D model of the robot grinding system and pick up the workpiece surfaces to be grinded respectively. Two groups of cutter planes with equidistant spacing are created to form the grinding nodes on the surface, and the extraction method for the position and posture of the nodes is proposed. Furthermore, the position and posture of discretized points along the grinding curve are obtained by B-spline curve interpolation and quaternion spherical linear interpolation respectively. Finally, the motion simulation is realized by robot inverse kinematics.

Findings
Through a watch case grinding experiment, the results show that the proposed method based on VTK can achieving high precision grinding effect, which is obviously better than traditional method.

Originality/value
The proposed method is universal which does not depend on the specific forms of surface, and all calculations in simulation are completed within the system, avoiding tedious external data calculation and import process. The grinding trajectory can be generated only by the mouse picking operation without relying on the other third-party CAD software.
Boardroom female participation, intellectual capital efficiency and firm performance in developing countries
Authors: Isola Wakeel Atanda , Adeleye Bosede Ngozi , Olohunlana Aminat Olayinka 
Published: April 2020

Purpose
This paper aims to focus on the implications of female participation in the board on the management of intellectual capital for improved firm performance, particularly in the Nigerian-banking sector. It uses the resource dependency theory to ascertain the link between female board participation, intellectual capital and performances.

Design/methodology/approach
The paper adopted longitudinal panel analysis to analyze data obtained from the annual reports of selected listed commercial banks in Nigeria. The random effect regression was adopted as the method of analysis. The decision was informed by conducting the Hausman test.

Findings
The results revealed that female board participation has insignificant influence on bank performances, whereas intellectual capital efficiencies positively contribute to bank performances. However, significant influences were exhibited upon the interactions of female board participation and components of intellectual capital efficiency on bank performances.

Research limitations/implications
Because of the focus of the research work, which is centered on the banking sector of the Nigerian economy, the findings of the research may not be sufficiently suitable for other sectors of the country. This, however, leaves the coast for other researchers to extend research on intellectual capital and gender participation to other non-financial sectors and other countries.

Practical implications
The outcome implies that there is a need for increased female participation in the boardroom to harness optimal intellectual capital efficiencies for firm performance. It further confirmed that intellectual capital unlocks the hidden treasure of firms.

Originality/value
The paper identifies and fulfills a niche on the need to extend the frontier of knowledge on intellectual capital and gender equity.
ICT ethics-related cognition among undergraduate students
Authors: Al-Nuaimi Maryam Nasser , Bouazza AbdelMajid , Abu-Hilal Maher M. 
Published: April 2020

Purpose
Moor (1985) designated two major problem sources typifying the social and ethical implications of computer technologies, namely, “policy vacuum” and “conceptual muddles.” Motivated by Moor’s seminal definition and Floridi’s (2013) conceptualization of information and communication technologies (ICTs) as re-ontologizing technologies, this study aims to explore Omani undergraduates’ cognition regarding ICT ethics.

Design/methodology/approach
Adopting a grounded theory approach for the constant comparative thematic analysis, the constituents of ICT ethics-related cognition among undergraduates and influencing factors were scrutinized. Qualitative data were gathered via focus group discussions with undergraduates and interviews with academics and information systems professionals at Sultan Qaboos University.

Findings
In total, 10 thematic categories revolving around a core category, constructing conceptual perceptions of and attitudes toward the realms constituting ICT ethics using an ontological, object-oriented approach, emerged from the comparative analysis. Undergraduates were found to adopt an applied approach when defining professional ICT ethics codes and policies, with a particular focus on information privacy and integrity.

Research limitations/implications
This qualitative study was conducted at a single research site. This may restrict the generalizability of the findings. Postgraduates were not considered when designing this qualitative inquiry.

Originality/value
The findings of the study hold theoretical and methodological significance with regard to ICT ethics-related cognition in the era following the fourth industrial revolution by sustaining feminist ethics in this research. Ultimately, the study developed a substantive theory scrutinizing the constitutive elements of ICT ethics-related cognition among Generation Z.