bluuebunny/crossref_metadata_2025_split huggingface dataset:
Asymmetric impact of shocks on Islamic stock indices: a cross country analysis
Authors: Fatima Anum , Rashid Abdul , Khan Atiq-uz-Zafar 
Published: October 2018

PurposeSeveral studies focus on asymmetric impact of shocks on conventional stocks. However, only few studies explore Islamic stocks, but none has examined the asymmetric impact of shocks on Islamic stocks. This study aims to fill the gap by investigating the asymmetric impact of shocks on Islamic stocks. Specifically, it identifies the effect of good and bad news on Islamic stock market. The study also aims to examine the returns and volatility spillover effects across different Islamic markets.Design/methodology/approachTo carry out the empirical analysis, the authors have applied the exponential generalized autoregressive conditional heteroscedasticity (ARCH) model on daily Islamic stock indices of 18 countries. The study covers the period from July 2009 to July 2016. The authors have started their empirical analysis by examining the time series properties and testing the presence of ARCH effects. Further, the authors have applied several post-estimation tests to ensure the robustness of the results.FindingsThe results indicate that there is significant leverage effect in Islamic stocks traded in the sampled countries. That is, negative shocks or bad news have stronger effects on Islamic stock returns’ volatility as compared to positive shocks or good news. The authors also found that there are significant mean spillover effects for the examined countries. This finding implies that increased Islamic stock returns in country have significant and positive effects in Islamic stocks’ returns in another other. Similarly, the results regarding the volatility spillover effects suggest that there are significant volatility spillover effects across all examined countries. However, the authors found both positive and negative volatility spillover effects. It should also be noted that in some cases, the authors did not find any significant volatility spillover effect.Practical implicationsThe findings of this study have several important policy implications for both investors and policymakers. As the findings suggest that Islamic stock indices are integrated across countries both in terms of returns (mean) and risk (volatility), they are useful for investors to design well-diversified portfolios. The significant volatility spillovers suggest policymakers to design such policy that may help in reducing the adverse effects of increased volatility of Islamic stock of other/foreign countries on the Islamic stocks of the home countries. The significant evidence of the presence of leverage (asymmetric) effects suggest investors to use effective and active hedging instruments to hedge risk, particularly, in bad times.Originality/valueUnlike other studies on Islamic stocks, this study takes into account the asymmetric effects of positive and negative shocks. Further, the study examines the mean and variance spillover effects for a large panel of countries having Islamic stocks. Finally, several pre- and post-estimation tests are applied to ensure the robustness of the results.
Enhancing public mental health and wellbeing through creative arts participation
Authors: Gillam Tony 
Published: October 2018

Purpose
The purpose of this paper is to explore how participation in creative arts activity can enhance public mental health and wellbeing. It is informed by both the author’s clinical practice with service users and carers and by research.

Design/methodology/approach
The approach taken is to draw selectively on research in the field of creativity, creative arts and wellbeing, focusing in particular on the use of music and creative writing, and to incorporate learning from clinical experience to explore what is understood about the health and wellbeing benefits of creative arts activity.

Findings
There is evidence that creative arts activity is beneficial to mental health and wellbeing. Arts activities that involve active participation appear to offer the greatest benefits. Creative arts participation can help people with diagnosed mental health difficulties to recover from mental illness. Moreover, creative arts activities can also promote wellbeing in the general population.

Research limitations/implications
The paper does not provide a comprehensive review of the literature in this field.

Practical implications
The paper suggests that if nurses and other mental health professionals are to play a full role in facilitating flourishing then they will need to learn more about using creative arts in practice and will need to become involved and encourage others to do so.

Social implications
The paper suggests it is important that creative arts activities should be participatory, so they become a vehicle not only for self-expression but also for participation in groups and communities, increasing connectedness and social inclusion.

Originality/value
This paper fulfils a need for a wider understanding of the health and wellbeing benefits of creative arts activity.
Knowledge worker productivity: is it really impossible to measure it?
Authors: Iazzolino Gianpaolo , Laise Domenico 
Published: October 2018

Purpose
The purpose of this paper is to propose and discuss, from both a theoretical and empirical point of view, a methodology for measuring the productivity of knowledge workers, then giving a contribution to the question launched by P. Drucker at the end of last millennium. An application of the method on a real case of a knowledge-based firm is shown.

Design/methodology/approach
The paper is both theoretical and empirical. At first, building also on Pulic’s theory of human capital efficiency (HCE) and on previous works by the same authors of this paper, a deep theoretical analysis is proposed. After, the explicit calculation of the knowledge worker productivity in a real case of a knowledge-based young firm has been carried out.

Findings
From a theoretical point of view, an inter-theory relationship between Drucker’s approach of sustainable strategies based on knowledge and the theory of HCE, mostly attributable to Pulic, has been constructed. From results of the application on the case study, it emerges that the calculation of the productivity of knowledge workers can be achieved and furthermore the result of the calculation can be the basis for the policy of rewarding within the firm.

Practical implications
The proposed methodology can support the s.c. knowledge-based firms to calculate the productivity of employees, a very practical problem for such kind of firms. Furthermore, the calculation of knowledge worker productivity is the basis for implementing a policy of rewarding employees.

Originality/value
The originality of the paper is to provide a practical methodology useful to calculate knowledge worker productivity. To do so, the link between Drucker’s and Pulic’s theories has been deeply analyzed and an inter-theory relationship has been constructed. The existence of such a relation, in the authors’ opinion, is necessary to provide a theoretical foundation for the methodology proposed.
Non-linear effects of environmental regulations on economic outcomes
Authors: Li Jiangtao , Ji Jianyue , Zhang Yi 
Published: October 2018

Purpose
There is no conclusive whether environmental regulation is a constraint or an incentive to the production development. The purpose of this paper is to analyze the non-linear effects of environmental regulations on economic outcomes from the combined perspective of labor productivity and environmental regulation costs.

Design/methodology/approach
Under the assumption of maximizing the utility of residents and maximizing the profit of firms, this research introduces a mathematical model that incorporates the promotion effect of environmental regulations on labor productivity and the costs of environmental regulations. On this basis, the authors analyze the non-linear relationship between environmental regulations and economic outcomes theoretically. This paper also conducts an empirical test using the panel data of 28 provinces in China from 1998 to 2015 through threshold regression.

Findings
Theoretical analysis shows that environmental regulations impose both the environmental regulation cost effect and the compensation effect on the labor productivity enhancement. The ultimate impact of environmental regulation on economic outcomes depends on the comparison of these two effects. Under the different intensities of environmental regulation, the magnitude of these two effects may not be equal. The empirical results further confirm the nonlinear relationship between environmental regulations and economic outcomes.

Originality/value
Previous studies have neglected the role of environmental regulations in improving labor productivity. This work’s main contribution is to propose a novel framework to study the non-linear relationship between environmental regulation and the growth of economic outcomes from perspective of labor productivity and the costs of environmental regulations.
Generating mutual recovery in creative spaces
Authors: Stewart Victoria , Roennfeldt Helena , Slattery Maddy , Wheeler Amanda J. 
Published: October 2018

PurposeParticipation in creative activities have been linked with increased personal agency. The purpose of this paper is to address critical considerations in the development of community-based creative workshops for people experiencing severe and persistent mental illness and explores participant experiences of these workshops.Design/methodology/approachThe workshops aimed to build the skills and capacities of participants and provide alternative ways to communicate identity and recovery stories. They were designed to provide a range of creative opportunities for participants (visual arts, writing, dance and music) and were facilitated by practising artists. In total, 11 participants attended ten creative workshops over three months. On completion, a focus group was conducted to gather participant views, experiences and outcomes of the workshops.FindingsThe creative workshops supported the recovery of participants. The inclusion of peer mentors in the workshops was an important in facilitating connectedness.Originality/valueThis study advances the evidence that creative arts can support the psychological and social aspects of participants’ recovery journeys. Creative activities can promote positive self-identity and reduce self-stigma for people experiencing mental illness. It highlights the importance of using evidence in the design of creative workshops and supports the use of peer mentoring in group creative processes.
Reassessing and refining theory in qualitative accounting research
Authors: Taylor Lynda C. 
Published: October 2018

PurposeThis paper focuses on the role of theory in the process of doing qualitative accounting research. It discusses the role of theory in qualitative accounting studies, and provides and example of how theory can be reflected upon, reassessed and refined during a research process.Design/methodology/approachThis paper provides an illustrative account of theorizing during the process of qualitative accounting research. The paper places specific emphasis on an abductive approach to theorizing. An abductive theoretical framework is used to reflect on the theorizing process.FindingsThe “findings” reflect on the use of theory and the process of theorizing during a research process. The paper finds that abduction may be a useful way of theorizing in qualitative accounting research because it encourages the researcher to remain open to alternative explanations of data, which may promote theoretical development. This paper does not report the accounting practices of an organization in the traditional sense, but illustrates how the empirical findings led to an initial theoretical framework being developed.Practical implicationsThe paper is intended to be informative in showing how theory can be used and developed during research. It may be of value and interest to new and emerging researchers. It may also interest established researchers seeking to reflect on their use of theory in research.Originality/valueThere are few contributions that focus exclusively and explicitly on how theory is used and developed during the process of qualitative accounting research. Moreover, the abductive approach has received limited attention in accounting. This paper aims to address these gaps.
Fabrication of nanocellulose/PEGDA hydrogel by 3D printing
Authors: Tang Aimin , Wang Qinwen , Zhao Shan , Liu Wangyu 
Published: October 2018

Purpose
Nanocellulose is characterised by favourable biocompatibility, degradability, nanostructure effect, high modulus and high tensile strength and has been widely applied in various fields. The current research in the field of new nanocellulose materials mainly focuses on the hydrogel, aerogel and the tissue engineering scaffold. All of these are three-dimensional (3D) porous materials, but conventional manufacturing technology fails to realise precise control. Therefore, the method of preparing structural materials using 3D printing and adopting the nanocellulose as the 3D printing material has been proposed. Then, how to realise 3D printing of nanocellulose is the problem that should be solved.

Design/methodology/approach
By adding the photosensitive component polyethyleneglycol diacrylate (PEGDA) in the aqueous dispersion system of nanocellulose, the nanocellulose was endowed with photosensitivity. Then, nanocellulose/PEGDA hydrogels were prepared by the additive manufacturing of nanocellulose through light curing.

Findings
The results showed that the nanocellulose/PEGDA hydrogels had a uniform shape and a controllable structure. The nanocellulose supported the scaffold structure in the hydrogels. Prepared with 1.8 per cent nanocellulose through 40 s of light curing, the nanocellulose/PEGDA hydrogels had a maximum compression modulus of 0.91 MPa. The equilibrium swelling ratio of the nanocellulose/PEGDA hydrogel prepared with 1.8 per cent nanocellulose was 13.56, which increased by 44 per cent compared with that of the PEGDA hydrogel without nanocellulose.

Originality/value
The paper proposed a method for rapidly prototyping the nanocellulose with expected properties, which provided a theoretical basis and technological reference for the 3D additive manufacturing of nanocellulose 3D structure materials with a controlled accurate architecture.
A novel approach of reliability-based topology optimization for continuum structures under interval uncertainties
Authors: Wang Lei , Xia Haijun , Yang Yaowen , Cai Yiru , Qiu Zhiping 
Published: October 2018

Purpose
The purpose of this paper is to propose a novel non-probabilistic reliability-based topology optimization (NRBTO) method for continuum structural design under interval uncertainties of load and material parameters based on the technology of 3D printing or additive manufacturing.

Design/methodology/approach
First, the uncertainty quantification analysis is accomplished by interval Taylor extension to determine boundary rules of concerned displacement responses. Based on the interval interference theory, a novel reliability index, named as the optimization feature distance, is then introduced to construct non-probabilistic reliability constraints. To circumvent convergence difficulties in solving large-scale variable optimization problems, the gradient-based method of moving asymptotes is also used, in which the sensitivity expressions of the present reliability measurements with respect to design variables are deduced by combination of the adjoint vector scheme and interval mathematics.

Findings
The main findings of this paper should lie in that new non-probabilistic reliability index, i.e. the optimization feature distance which is defined and further incorporated in continuum topology optimization issues. Besides, a novel concurrent design strategy under consideration of macro-micro integration is presented by using the developed RBTO methodology.

Originality/value
Uncertainty propagation analysis based on the interval Taylor extension method is conducted. Novel reliability index of the optimization feature distance is defined. Expressions of the adjoint vectors between interval bounds of displacement responses and the relative density are deduced. New NRBTO method subjected to continuum structures is developed and further solved by MMA algorithms.
What we have achieved in the design of 3D printed metal implants for application in orthopedics? Personal experience and review
Authors: Li Zuhao , Wang Chenyu , Li Chen , Wang Zhonghan , Yang Fan , Liu He , Qin Yanguo , Wang Jincheng 
Published: October 2018

PurposeThis paper aims to review the latest applications in terms of three-dimensional printed (3DP) metal implants in orthopedics, and, importantly, the design of 3DP metal implants through a series of cases operated at The Second Hospital of Jilin University were presented.Design/methodology/approachThis paper is available to practitioners who are use 3DP implants in orthopedics. This review began with the deficiency of traditional prostheses and basic concepts of 3DP implants. Then, representative 3DP clinical cases were summarized and compared, and the experiences using customized prostheses and directions for future potential development are also shown.FindingsThe results obtained from the follow-up of clinical applications of 3DP implants show that the 3D designed and printed metal implants could exhibit good bone defect matching, quick and safe joint functional rehabilitation as well as saving time in surgery, which achieved high patient satisfaction collectively.Originality/valueSingle center experiences of 3DP metal implants design were shared and the detailed technical points between various regions were compared and analyzed. In conclusion, the 3DP technology is infusive and will present huge potential to reform future orthopedic practice.
Mechanical properties of composite parts manufactured in FDM technology
Authors: Górski Filip , Kuczko Wiesław , Wichniarek Radosław , Hamrol Adam 
Published: October 2018

Purpose
This paper aims to study strength properties and accuracy of a new type of composites, in which matrix is manufactured additively, whereas infill is a polyurethane resin. The process of manufacturing these composites is invented and patented by authors.

Design/methodology/approach
The authors developed a method of manufacturing composites, which was then used to build samples for tensile and bending tests (according to ISO 572 and ISO 178 standards), as well as measurements of accuracy.

Findings
It was found that the method of composite manufacturing designed by the authors allows obtaining both stronger and cheaper parts in comparison with the traditional acrylonitrile butadiene styrene FDM parts.

Research limitations/implications
The research was limited to static tests only, and no dynamic tests were performed on the manufactured samples. The accuracy analysis is only a basic one.

Practical implications
Developed method allows to shorten the FDM process with simultaneous decrease of costs (in professional processes) and increase of strength of obtained products.

Originality/value
Application of composite materials presented in the paper will significantly expand possibilities of using FDM method to manufacture functional, strong parts able to carry higher loads. Application of different combinations of thermoplastic matrix materials with different resin infills will allow to control properties of obtained composites. The solution is currently subject of a patent.
Clear as a bell
Authors: Graff Daniel , Clark Mark A. 
Published: October 2018

PurposeThis study reviews the construct of analogy as an individual communication mode, examining its relationship with cross-understanding in knowledge-diverse teams. The authors theorize that analogy use enhances team information processing beyond mere communication frequency through bridging knowledge differences across team members. The authors propose that analogies will have a direct relationship to knowledge application, and an indirect effect via cross-understanding. However, communication frequency will have only an indirect effect on knowledge application through cross-understanding.Design/methodology/approachThe authors sampled a 49-member team with 14 subteams, yielding 146 usable dyadic relationships. Two mediation models were estimated while using linear mixed-effect models in SPSS.FindingsThe results confirm the importance of analogies and cross-understanding in teams, generally supporting the hypotheses. Mere communication frequency was not related to knowledge application, indicating that “how you say it” may be more important than how often a team member speaks.Research limitations/implicationsThis research explored these constructs through a three-week project in a sample of graduate students working with a real-world client. Future research could explore the validity of this model in other organizational settings and test the analogy construct on the team level.Practical implicationsThe effectiveness of team member communication should be measured not only as frequency but also in terms of analogies to transmit meaning.Originality/valueThis paper contributes to an understanding of teams as information processors by building empirical support for the utility of analogical communication in design teams, establishing the relationship of analogies to cross-understanding and knowledge application.
Tagatose as a Potential Nutraceutical: Production, Properties, Biological Roles, and Applications
Authors: Roy Sohini , Chikkerur Jayaram , Roy Sudhir Chandra , Dhali Arindam , Kolte Atul Puroshtam , Sridhar Manpal , Samanta Ashis Kumar 
Published: October 2018

AbstractNutraceuticals are gaining importance owing to their potential applications in numerous sectors including food and feed industries. Among the emerging nutraceuticals, d‐tagatose occupies a significant niche because of its low calorific value, antidiabetic property and growth promoting effects on beneficial gut bacteria. As d‐tagatose is present in minute quantities in naturally occurring food substances, it is produced mainly by chemical or biological means. Recently, attempts were made for bio‐production of d‐tagatose using l‐arabinose isomerase enzyme to overcome the challenges of chemical process of production. Applications of d‐tagatose for maintaining health and wellbeing are increasing due to growing consumer awareness and apprehension against modern therapeutic agents. This review outlines the current status on d‐tagatose, particularly its production, properties, biological role, applications, and the future perspectives.