bluuebunny/crossref_metadata_2025 huggingface dataset:
Patch antenna design optimization using opposition based grey wolf optimizer and map-reduce framework
Authors: Guttula Ramakrishna , Nandanavanam Venkateswara Rao
Published: January 2020

Purpose

Microstrip patch antenna is generally used for several communication purposes particularly in the military and civilian applications. Even though several techniques have been made numerous achievements in several fields, some systems require additional improvements to meet few challenges. Yet, they require application-specific improvement for optimally designing microstrip patch antenna. The paper aims to discuss these issues.

Design/methodology/approach

This paper intends to adopt an advanced meta-heuristic search algorithm called as grey wolf optimization (GWO), which is said to be inspired by the hunting behaviour of grey wolves, for the design of patch antenna parameters. The searching for the optimal design of the antenna is paced up using the opposition-based solution search. Moreover, the proposed model derives a nonlinear objective model to aid the design of the solution space of antenna parameters. After executing the simulation model, this paper compares the performance of the proposed GWO-based microstrip patch antenna with several conventional models.

Findings

The gain of the proposed model is 27.05 per cent better than WOAD, 2.07 per cent better than AAD, 15.80 per cent better than GAD, 17.49 per cent better than PSAD and 3.77 per cent better than GWAD model. Thus, it has proved that the proposed antenna model has attained high gain, leads to cause superior performance.

Originality/value

This paper presents a technique for designing the microstrip patch antenna, using the proposed GWO algorithm. This is the first work utilizes GWO-based optimization for microstrip patch antenna.
Impact of the perception of performance appraisal practices on individual innovative behavior
Authors: Canet-Giner Teresa , Redondo-Cano Ana , Saorín-Iborra Carmen , Escribá-Carda Naiara
Published: January 2020

Purpose

The purpose of this paper is to analyze the impact of employees’ perception of performance appraisal (PA) practices on innovative behavior (IB). The authors also propose to analyze consistency, a dimension of Human Resource Management (HRM) system strength, as a moderating variable in the aforementioned relationship.

Design/methodology/approach

A quantitative study was conducted, using a sample of 166 employees carrying out highly qualified, intensive knowledge jobs in four industrial companies in the Valencian region of Spain. The hypotheses were tested by applying the Smart-PLS 3.2 software.

Findings

The findings confirmed that in a context of professional and qualified work, PA practices have a direct and positive effect on IB. However, the results obtained did not enable us to affirm that employee perceptions of the consistency of the HR system moderated the relationship between PA and IB.

Originality/value

The paper’s originality lies in including the role of consistency, a dimension of HRM system strength, in the analyzed relationship. When employees believe that PA achieves the goals for which this practice was designed, and that this appraisal follows a clear strategic direction over time, they perceive that the assessment system is not arbitrary, i.e., that this HR practice is being applied consistently. Consequently, the present work shows the relevant role of the perception of consistent PA when the firm wants to encourage IB. This fact opens up the field to study how to define and implement control mechanisms that tell managers whether there is a fit between employees’ perceptions and the intentionality of the HRP these managers have defined.
Effects of spinning process and core yarn contents on yarn shape retention
Authors: Yanhong Wei , Liu Xinjin , Su Xuzhong , Zhimin Zhao
Published: January 2020

Purpose

In order to develop high shape retention yarn and investigate the effects of spinning process and core yarn contents on the shape retention of yarn, in this paper, three kinds of yarns, JC/T400 18.5tex (55.6dtex) core-spun yarn, JC/T400 18.5tex (44.4dtex) core-spun yarn and JC18.5tex pure cotton yarn were spun by using the complete condensing Siro-spinning technology. The paper aims to discuss these issues.

Design/methodology/approach

In this paper, the core-spun yarns were spun by using the complete condensing spinning and Siro-spinning technology. Two key spinning processes, yarn twist factor and core yarn pre-draft ratio, were optimized by using the orthogonal test method first. Then, via the variable control method, the position of the core yarn, the position of the bell mouth and the center distance between two bell mouths were optimized, respectively, and corresponding optimal spinning process of the three yarns was determined. Finally, the yarns were spun under the optimal process, and the performance of the spun yarns was tested and compared.

Findings

Results show that the yarn twist factor affects yarn strength and hairiness, the position of bell mouth affects the evenness and hairiness of the yarn mainly, and the position of the core yarn affects the coverage and hairiness of the yarn. For the Z-twist spinning, the core yarn enters the front roller from the left side of two strands center, which is beneficial to improve the covering effect of core yarn, and reduce the pilling phenomenon of the yarn. The contents of core yarn affect indicators of the yarn shape retention, such as yarn strength, elastic recovery and abrasion resistance.

Originality/value

The shape retention of yarns affects the shape retention of fabrics, and the production of yarn with high shape retention is a key step in achieving shape retention of fabrics. At present, there are little studies on the shape retention of yarns, most researchers shave focused on shape retention of fabrics. Using the complete condensing Siro-spinning method to spin the core-spun yarn can improve the quality of the yarn. Compared with traditional ring-spinning yarns, the addition of the core yarn can improve the shape retention of the yarn.
Impact of product description and involvement on purchase intention in cross-border e-commerce
Authors: Mou Jian , Zhu Wenlong , Benyoucef Morad
Published: January 2020

Purpose

The purpose of this paper is to investigate the impact of product description and involvement on purchase intention in a cross-border e-commerce (CBEC) setting from a psychological perspective.

Design/methodology/approach

This study proposes a research model of purchase intention in CBEC based on the involvement theory and commitment-involvement theory. The research model was tested using the covariance-based structural equation modeling technique. Data were collected from consumers on a popular CBEC platform in China.

Findings

A high-quality product description has no significant positive effect on purchase intention, but it has significant positive effects on product cognitive involvement, product affective involvement, platform enduring involvement and platform situational involvement. In addition, product affective involvement, platform enduring involvement and platform situational involvement all have significant positive effect on purchase intention, but this effect is not significant in the relationship between product cognitive involvement and purchase intention.

Practical implications

This study calls for sellers to optimize product descriptions on CBEC platforms in order to attract more buyers and generate more profits.

Originality/value

This study integrates two theories of involvement into the research model in the CBEC context. Based on this model, the authors analyzed how product description affects purchase intention under the joint influence of two involvement factors.
Two-echelon supply chain operational strategy under portfolio financing and tax shield
Authors: Dong Guoshu , Wei Lihong , Xie Jiaping , Zhang Weisi , Zhang Zhefu
Published: January 2020

Purpose

The development of small- and medium-sized enterprises (SMEs) is vital to the economy, as such the financing of SMEs has become the focus of government and enterprises. The purpose of this paper is to find the operational and financial strategies of the supplier and retailer in supply chain.

Design/methodology/approach

In a Stackelberg game, supplier moves first setting wholesale price, while the retailer follows, setting the ordering quantity. Enterprises maximize their profits by optimization. When measuring profit targets, the capital constraints and income taxes of two companies are considered. In the portfolio financing model, the retailer can obtain products from suppliers through trade credit, and the supplier can use asset-backed securitization (ABS) to solve his/her financing problems.

Findings

The wholesale price is a decreasing function of retailer’s initial cash balance, and the supplier’s financing interest rate is a decreasing function of his/her own capital, the incentive effect of the supplier’s price discount strategy on retailer is more intense in the supply chain with high-priced product or high-capital retailer. And in a capital-constrained supply chain, an increase in tax rate or financing rate does not necessarily motivate the supplier to increase wholesale price. Most importantly, if the supplier’s markup is moderate, portfolio financing has value for both retailer and supplier, while solving the financing problems of both parties.

Research limitations/implications

Future research can consider the explicit and implicit interest when supplier provides trade credit to retailer. It is also possible to consider the portfolio financing when multiple retailers are facing financial constraints.

Practical implications

It provides guidance for supply chain enterprises with financing needs, helping them find optimal decisions. With financial interest, enterprise income tax on the enterprises’ financing factors will produce a tax shield effect; thus, a cost–benefit analysis with the tax shield effect can provide more accurate picture when making corresponding decisions.

Social implications

Government takes feasible adjustments of tax rate for the sake of motivation on financial SMEs tax shield. Furthermore, ABS calls for service from financial institutions, which will, in turn, expedite financial institutions revenue.

Originality/value

The authors provide insights on enterprise financing models, combining ABS with trade credit, expanding enterprise financing channels and enriching the theory of financial supply chain and supply chain management. The authors analyze in detail the influence of tax factors on enterprises by introducing tax factors into traditional process of enterprise operation and financing strategy.
Does manager ability influence the classification of lease arrangements?
Authors: Brooks Marcus , Hairston Stephanie , Harter Charles
Published: January 2020

Purpose

The purpose of this paper is to examine the influence of manager ability on a firm’s choice of lease classification and the decision to capitalize vs lease firm-specific assets.

Design/methodology/approach

The authors use regression analysis to examine the association between manager ability, lease classification and asset specificity.

Findings

Using 31,110 firm-year observations from 1998 to 2013, the authors find a significant positive relationship between manager ability and the decision to classify leases as operating. The authors also find that high-ability managers are more likely to capitalize, rather than lease, specialized firm-specific assets.

Research limitations/implications

The results imply that manager ability influences the choice of lease classification, which provides some support for the recent changes to lease accounting in Accounting Standard Update (ASU) 2016-02. The authors also show that asset specificity may serve as a mitigating factor in high-ability managers’ preference for operating leases, which implies that high-ability managers’ concerns with operational efficiency outweigh the benefits of off-balance sheet financing in their purchasing decisions if the asset in question is firm-specific.

Practical implications

The findings may be useful to boards of directors, investors and accounting academics concerned with the role that managerial ability plays in operational decision making and financial reporting.

Originality/value

The results imply that high-ability managers prefer off-balance sheet financing, which is unlikely to limit their access to external capital, but that this relationship is mitigated if the firm requires highly specialized assets.
The ethics of governance and governance of ethics in the King Reports
Authors: Rossouw Gedeon Josua
Published: January 2020

Purpose

The purpose of this paper is to explore the prominence and positioning of ethics in the four editions of the King Report on corporate governance for South Africa that were published since 1994. It tells a tale of how certain ethics aspects remained fairly constant over the four editions of the King Report on corporate governance for South Africa (King I in 1994; King II in 2002; King III in 2009; King IV in 2016), whilst other ethics aspects evolved quite substantially over the four editions.

Design/methodology/approach

In this paper, a conceptual distinction between “Ethics of Governance” and “Governance of Ethics” will be introduced, which will then be used to analyse the ethics dimensions of the four King reports.

Findings

It will be demonstrated that there is continuity across the four editions of the King Report as far as the Ethics of Governance is concerned.

Originality/value

With regards to the Governance of Ethics, there has been a quite drastic evolution in both the prominence and positioning of ethics since the publication of the first King Report in 1994.
The distinctive stance of the King Reports on corporate governance from a global perspective
Authors: Ramalho Anna
Published: January 2020

Purpose

The purpose of this paper is to provide a perspective on the distinctive stance of the King Report on Corporate Governance in South Africa, 2016 (King IV) in relation to a number of other codes of corporate governance issued globally.

Design/methodology/approach

The paper presents a comparative analysis between King IV and the codes of governance that apply in a select number of the jurisdictions, namely, Australia, Brazil, Malaysia, Nigeria and the UK. The selection of jurisdictions was done with the view of having a sample that is representative of the major global regions. Preference was given to codes that were issued or revised recently. Mention is also made of the G20/OECD Principles of Corporate Governance where appropriate.

Findings

The conclusion reached in this paper is that King IV is distinctive from the codes compared to it in this paper in six respects. These include that King IV defines corporate governance as accountable leadership instead of it being a system only and is drafted for positive outcomes instead of compliance; proposes an application regime that is qualitative instead of quantitative; integrates sustainable development into its model for corporate governance instead of treating sustainability as an ad hoc-matter; has applicability across the ecosystem of all organisations instead of limited application to listed or larger companies; and has a has built in a social value system to harness broad public support instead of reliance on bottom-down enforcement.

Originality/value

The implications of the distinct approach to corporate governance in King IV are explained in the paper and should serve as a premise to reconsider whether the more traditional approaches to corporate governance code development are still appropriate in light of the learning as evidenced in King IV.
Technostress in the hospitality workplace: is it an illness requiring accommodation?
Authors: Farrish John , Edwards Chase
Published: January 2020

Purpose

This paper aims to examine technostress and asks whether it is an illness requiring accommodation under the terms of the Americans with Disabilities Act. It further explores the notion that hospitality employers may contribute to employee technostress and examines employers' potential legal liability. Finally, it recommends steps employers can take to avoid legal liability.

Design/methodology/approach

Technostress is defined in terms of job demand and resource theory. It explores how technology overload can contribute to employee technostress.

Findings

As there is currently no legal definition for technostress, courts will be guided by the standard of what a reasonably prudent individual would do to guard against a particular threat.

Research limitations/implications

The courts have yet to rule on whether technostress constitutes an illness requiring accommodation. It is therefore possible that technostress will not be classified as such. Still, operators should not make themselves a target for litigation.

Practical implications

Employers would be wise to craft policies that reduce the risk of technostress in the workplace to mitigate both its causes and effects.

Social implications

Very little research has been conducted examining the impact of technostress in the workplace. The obligation of employers to accommodate employees suffering from the effects of technostress will be litigated soon. This will have a significant impact on the culture surrounding catering and room sales.

Originality/value

No studies have been undertaken as yet to anticipate its effects on employees and what steps employers must take to accommodate employees who suffer from it. This paper fills that gap and, more importantly, does so before the issue is litigated.
The way toward a new entrepreneurial balance in business succession processes
Authors: Poeschl Alexander , Freiling Joerg
Published: January 2020

Purpose

The purpose of this paper is to explore the under-researched family-external business succession process. It makes use of entrepreneurship theory in order to conceptualize this temporal process. This allows for an operationalization of entrepreneurial functions and tracking them during the two main phases of such processes. This study provides a starting point for further endeavors into researching family-external succession processes.

Design/methodology/approach

This paper is based on an explorative, quasi-longitudinal, qualitative and multiple case-study approach. It became possible to create trust with stakeholders in three family firms and to conduct face-to-face interviews with a total of 12 interviewees, generating over 300 transcript pages. The case interviews were validated through two expert interviews.A prioriresearch propositions were tested and modified, if deemed necessary.

Findings

Entrepreneurial functions during the two main phases of the process seem to be carried out and aligned depending on several influencing factors: delegation of responsibilities from owner-managers to qualified employees; incumbent owner-managers being heavily involved in the succession’s facilitation and neglecting some entrepreneurial functions; and as a result new owner-managers being forced to prioritize certain functions in the second phase.

Originality/value

This paper benefits from a rather unique access to three family firms undergoing succession in the DACH-region. Therefore, it became possible to study the family-external succession process by including various stakeholders involved. Such an inclusion of perspectives has been suggested by family business scholars for a long time.
Instruction, equity, and social networks in district-wide improvement
Authors: Hatch Thomas , Hill Kathryn , Roegman Rachel
Published: January 2020

Purpose

The purpose of this paper is to explore the factors and conditions that help to explain what it takes to mount district-wide efforts to improve instruction and address inequities.

Design/methodology/approach

The authors examined the evolution of administrator social networks related to instruction, equity and race in three districts over a three-year period. The authors documented when and how these social networks support district-wide connections and consider the relationship between network evolution and each district’s efforts to improve outcomes for all students.

Findings

The authors found that administrators were most likely to be talking together about instruction, equity and race, and administrator social networks were most conducive to the sharing of information across roles, levels and initiatives when explicit efforts were made to engage administrators in common equity-related initiatives and when discussions of equity and race were part of the public conversation.

Research limitations/implications

Future studies of social networks among teachers and among teachers and administrators would provide a more well-rounded picture of how information and resources related to instruction, equity and race are shared throughout a district.

Practical implications

Results from this study can be used to help administrators reflect on key aspects of their organizational structure and the opportunities for interaction they provide.

Social implications

Strategic connections among those in different roles and initiatives can foster sharing of different perspectives and support the development of community cohesion and a common understanding of joint work.

Originality/value

This study provides an initial step in bringing together work on social networks and instructional leadership with research related to equity and race in studies of school improvement.
Can leader humility enhance employee wellbeing? The mediating role of employee humility
Authors: Zhong Jie , Zhang Li , Li Ping , Zhang Duo Zhen
Published: January 2020

Purpose

The purpose of this paper is to explore the relationship between leader humility and employee well-being. Based on social information processing (SIP) theory and previous literature concerning leader humility, this paper identifies employee humility as the mediator and suggests that perceived leader effectiveness moderates these relationships.

Design/methodology/approach

This study employed a survey involving 228 employees to test the hypothesized moderated-mediation model.

Findings

Leader humility is positively related to employee well-being. Employee humility mediates leader humility and employee well-being, except for emotional exhaustion. Moreover, the effect of leader humility on employee humility and the indirect effect of leader humility on employee job satisfaction and work engagement are stronger under high perceptions of leader effectiveness.

Originality/value

Based on the framework of SIP theory, this paper contributes to the literature on humble leadership and employee well-being by treating employee humility as the mechanism and perceived leader effectiveness as the moderator. Few previous studies have investigated the influence of leader humility on employee well-being.
Effective leadership
Authors: Vilkinas Tricia , Murray Duncan William , Chua Sarah Mei Yi
Published: January 2020

Purpose

The purpose of this paper is to propose a model of effective managerial leadership that incorporates the motivation of leaders to lead, their leadership behaviours and their reflective and learning ability (integrator). This model seeks to provide a more complete picture on the factors that contribute to effective leadership. Drawing on Quinn’s (1984) competing values framework and Vilkinas and Cartan’s (2001) integrated competing values framework, this study addresses the question of what motivates leaders to engage in effective leadership behaviours.

Design/methodology/approach

The current study examines the effects of motivation to lead (MTL), the integrator and behavioural repertoire on leadership effectiveness of 439 managers. Data were gathered in an online questionnaire using the online survey tool “Survey Monkey”.

Findings

Results show that the integrator (Vilkinas and Cartan, 2001) and the behavioural repertoire (Hooijberg, 1996) are significant predictors of leadership effectiveness. Affective identity and social-normative motivations to lead are strong predictors of leadership effectiveness, while non-calculative is a weaker predictor.

Research limitations/implications

The study is limited by the use of self-perceptions. Future research could broaden the current results by including perceptions of work colleagues.

Practical implications

The results have implications for human resource managers as regards selecting and developing leaders.

Originality/value

This study is the first to examine the ways in which the integrator, behavioural repertoire and MTL predict leadership effectiveness.
Using quotations from non-English interviews in accounting research
Authors: Feldermann Sina K. , Hiebl Martin R.W.
Published: January 2020

Purpose

This paper aims to examine the current practice of reporting on translation issues in qualitative, interdisciplinary accounting research. Based on an analysis of the methodological consideration of the translation of quotations from non-English interviews and additional interviews with experienced researchers, the authors aim to develop recommendations for the reporting on such translation procedures in future accounting research relying on interviews not conducted in English.

Design/methodology/approach

The analysis is based on papers published in four highly ranked interdisciplinary accounting journals:Accounting, Auditing and Accountability Journal(AAAJ),Accounting, Organizations and Society(AOS),Critical Perspectives on Accounting(CPA) andQualitative Research in Accounting and Management(QRAM). The subjects of the analysis are publications of non-English-speaking researchers who conducted non-English interviews and therefore were confronted with translation issues when attempting to get published in these English-language journals. Additionally, to gain deeper insights into reporting decisions on language and translation issues, the authors conducted interviews with experienced researchers in the field of qualitative, interdisciplinary accounting research whose mother tongue is not English. The authors combine these empirical insights with current developments in translation studies.

Findings

As suggested by translation studies, translation is an act of sense making and reconstruction of meaning, and therefore is a complex task that needs to be carried out with caution. However, the findings suggest that in current interdisciplinary, qualitative accounting research, the reporting of language and translation issues, especially with regards to the translation of quotations from interview data, have so far received only limited attention. The authors therefore call for more awareness of and sensibility toward dealing with language and translation issues, which should be reflected in more transparent reporting on translation processes to support the credibility and authenticity of qualitative accounting studies based on non-English interviews.

Research limitations/implications

This paper is limited to the reporting on the methodological consideration of translating quotations from non-English interviews in papers published inAAAJ,AOS,CPAandQRAMbetween 2004 and 2015. For future accounting research that relies on such interviews, the authors call for more transparency and provide specific recommendations. This in turn should strengthen the awareness that language and translation are factors to be considered and reported.

Originality/value

This paper is the first to develop recommendations for the reporting of translation processes in accounting research studies, which are based on interviews not led in the English language.
Measuring the Arab Parliament’s institutional development
Authors: Abdulhameed Mudher Abullraheem
Published: January 2020

Purpose

This study aims to deal with the evaluation of institutional development and effectiveness of regional parliaments; it provides a scientific contribution to the development of the field of parliamentary studies by developing a set of indicators to present a parameter for evaluating regional parliaments with application to the Arab Parliament. The study concluded with the development of a parameter of 35 indicators to measure institutionally, efficiency and effectiveness of the institution, with application to the Arab Parliament, as well as developing an integrated assessment of the strengths and weaknesses in the institutional aspects and organizational efficiency.

Design/methodology/approach

The study is predicated on the principle of institutional approach and the systems analysis. The curriculum is applied to the Arab Parliament as an institution to quantify efficiency and efficacy according to the implementation of a set of proposed practical indicators. The study additionally applies both Huntington’s institutional standards such as Adaptability, Involution, Autonomy and Coherence, as well as the indicators of institutions efficiency according to PrePanti such as Openness, Reception (R), Autonomy (A), Balance (B), Congruence (C), Internal Efficacy (I), Reformulation (R) and Roles (R), which refer to the first seven Latin letters “First RABCIRR”.

Findings

The researcher endeavored to answer the main questions; How to quantify the degree of institutionalization, its impact on the efficiency and efficacy of regional parliaments. The researcher’s approaches and the standards of efficiency and efficacy figured a comprehensive set of indicators that composed an integrated parliamentary standard to assess the degree of institutionalization, efficacy and efficiency of regional parliaments as a scientific contribution based on the Arab Parliament that can be applied to all regional parliaments.

Originality/value

This research is an attempt to create a Parliamentary Index to complement the previous scientific initiatives and efforts in developing such an index, which consists of 35 indicators and its application to the Arab Parliament. This research uses the principles of institutional approach, system analysis methodology and efficiency. The approach is applied to the Arab Parliament as a regional parliament to measure efficiency and effectiveness by applying a set of the proposed indicators.
Dissecting the empirical-normative divide in business ethics
Authors: Roth Steffen , Valentinov Vladislav , Clausen Lars
Published: January 2020

Purpose

This paper aims to probe the limits of the empirical-normative divide as a conceptual framework in business ethics.

Design/methodology/approach

A systems theory perspective debunks this divide as a false distinction that cannot do justice to the conceptual complexity of the field of corporate social responsibility (CSR) scholarship.

Findings

Drawing on the systems-theoretic ideas of Niklas Luhmann and the “Laws of Form” by George Spencer Brown, the paper shows that the divide may be dissected into a four-cell matrix constituted by two other distinctions-descriptive vs prescriptive and categorical vs hypothetical-the latter of which was seminally suggested by Donaldson and Preston (1995).

Practical implications

The emerging four-cell matrix is shown to centrally embrace the multiplicity of normative, empirical and instrumental approaches to CSR. This multiplicity is exemplified by the application of these approaches to the phenomenon of CSR communication.

Social implications

A more general implication of the proposed argument for the field of business ethics is in tracing the phenomena of moral diversity and moral ambivalence back to the regime of functional differentiation as the distinguishing feature of the modern society. This argument drives home the point that economic operations are as ethical or unethical as political operations, and that both economic and political perspectives on ethical issues are as important or unimportant as are religious, artistic, educational or scientific perspectives.

Originality/value

In contrast to the empirical-normative divide, the perspective is shown to centrally embrace the multiplicity of normative, empirical and instrumental approaches to CSR.
Graduate students’ agency and resistance after oppressive experiences
Authors: Perez Rosemary J. , Harris, Jr L. Wesley , Robbins Claire K. , Montgomery Cheryl
Published: January 2020

Purpose

The purpose of this study was to explore how graduate students demonstrated agency after having oppressive or invalidating experiences based on their socially constructed identities during graduate school and the effects of leveraging agency.

Design/methodology/approach

This study used critical constructivist qualitative methods (i.e. interviews and visual methods) to explore how 44 graduate students across an array of disciplines and fields at two public research institutions in the USA demonstrated agency after having oppressive or invalidating experiences targeting one or more of their socially constructed identities.

Findings

In response to oppressive or invalidating experiences related to their socially constructed identity, participants engaged in self-advocacy, sought/created support via community, conserved their psychological and emotional energy and constructed space for identity-conscious scholarship and practice. Although participants leveraged their agency, the strategies they used were often geared toward surviving environments that were not designed to affirm their identities or support their success.

Research limitations/implications

This study highlights the need for additional research to complicate educators’ understandings of how graduate students respond to oppressive or invalidating experiences and the nature of bi-directional socialization processes.

Practical implications

The findings of this study reinforce the need to foster equitable and inclusive graduate education experiences where students may use their agency to thrive rather than to survive.

Originality/value

Few studies examine graduate students’ agency during their socialization to their disciplines and fields. This study adds complexity to researchers’ understandings of bi-directional socialization processes in the context of graduate education.
Learning organization – organization emerging from presence
Authors: Rupčić Nataša
Published: January 2020

Purpose

The purpose of this paper is to discuss the possibilities of transcending individual, organizational and social problems through the prism of presence as suggested by Senge et al. (2012).

Design/methodology/approach

The paper is based on the critical review of previous contributions.

Findings

The idea of a learning organization seems romantic and elusive, as well as difficult to implement, especially when the definition by Senge (1990) is considered. At the same time, organizational and social complexity is increasing and resulting in numerous difficult or wicked problems. To reach integrative and transcending solutions, a change in perception and surrender to presence is key.

Research limitations/implications

Conclusions provided in the paper could benefit from further practice to corroborate the findings.

Practical implications

Suggestions for practitioners have been provided on how to solve personal, organizational and social problems on the basis of the paradigm shift and the shift in perception.

Originality/value

In this paper, the individual, organizational and social dimensions in terms of their intricacies are considered and solutions are offered that could simultaneously solve wicked problems on all three levels.
The learning organization as a context for value co-creation
Authors: Mastio Emmanuel , Chew Eng , Dovey Kenneth Anthony
Published: January 2020

Purpose

This paper aims to explore the relationship between the concept of the learning organization and that of the co-creation of value.

Design/methodology/approach

The paper is conceptual in nature and draws on data from a case study of a small highly innovative Australian company.

Findings

The authors show that, from a value co-creation perspective, the learning organization can be viewed as an open, collaborative, social/economic actor engaged in social/economic activities with other interdependent actors (organizations or stakeholders) in a network or ecosystem of actors to serve its mission/purpose and the well-being of the ecosystem.

Research limitations/implications

As a conceptual paper, the authors rely primarily on previous research as the basis for the argument. The implications of the findings are that, as value co-creation practices are founded upon the generation and leveraging of specific intangible capital resources, more research located in alternative research paradigms is required.

Practical implications

There are important implications for organizational leadership in that the practices that underpin value co-creation require the leadership to be able to work constructively with multiple forms of systemic and agentic power.

Social implications

In increasingly turbulent and hyper-competitive global operational contexts, sustainable value creation is becoming recognized as a collective achievement within a broad eco-system of collaborators. This has implications for the relational capabilities of all collaborators.

Originality/value

The authors introduce a new perspective on the role of power management in the facilitation of the co-creation of value. Arguing that value creation is becoming recognized as a “collective achievement”, they focus on the collaborative practices that enable such an achievement.
Social network analysis as a tool for marine spatial planning: Impacts of decommissioning on connectivity in the North Sea
Authors: Tidbury Hannah , Taylor Nick , van der Molen Johan , Garcia Luz , Posen Paulette , Gill Andrew , Lincoln Susana , Judd Adrian , Hyder Kieran
Published: January 2020

Connectivity of marine populations and ecosystems is crucial to maintaining and enhancing their structure, distribution, persistence, resilience and productivity. Artificial hard substrate, such as that associated with oil and gas platforms, provides settlement opportunities for species adapted to hard substrates in areas of soft sediment. The contribution of artificial hard substrate and the consequences of its removal (e.g. through decommissioning) to marine connectivity is not clear, yet such information is vital to inform marine spatial planning and future policy decisions on the use and protection of marine resources.

This study demonstrates the application of a social network analysis approach to quantify and describe the ecological connectivity, informed by particle tracking model outputs, of hard substrate marine communities in the North Sea. Through comparison of networks with and without artificial hard substrate, and based on hypothetical decommissioning scenarios, this study provides insight into the contribution of artificial hard substrate, and the consequence of decommissioning, to the structure and function of marine community connectivity.

This study highlights that artificial hard substrate, despite providing only a small proportion of the total area of hard substrate, increases the geographic extent and connectivity of the hard substrate network, bridging gaps, thereby providing ‘stepping stones’ between otherwise disconnected areas of natural hard substrate. Compared to the baseline scenario, a decommissioning scenario with full removal of oil and gas platforms results in a nearly 60% reduction in connectivity. Such reduction in connectivity may have negative implications for species’ distribution, gene flow and resilience following disturbance or exploitation of marine hard substrate communities.

Synthesis and applications. Social network analysis can provide valuable insight into connectivity between marine communities and enable the evaluation of impacts associated with changes to the marine environment. Providing standardized, transparent and robust outputs, such a tool is useful to facilitate understanding across different disciplines, including marine science, marine spatial planning and marine policy. Social network analysis therefore has great potential to address current knowledge gaps with respect to marine connectivity and crucially facilitate assessment of the impacts of changes in offshore substrate as part of the marine spatial planning process, thereby informing policy and marine management decisions.
Disclosure Regulation and Corporate Acquisitions
Authors: BONETTI PIETRO , DURO MIGUEL , ORMAZABAL GAIZKA
Published: January 2020

This paper examines the effect of disclosure regulation on the takeover market. We study the implementation of a recent European regulation that imposes tighter disclosure requirements regarding the financial and ownership information on public firms. We find a substantial drop in the number of control acquisitions after the implementation of the regulation, a decrease that is concentrated in countries with more dynamic takeover markets. Consistent with the idea that the disclosure requirements increased acquisition costs, we also observe that, under the new disclosure regime, target (acquirer) stock returns around the acquisition announcement are higher (lower), and toeholds are substantially smaller. Overall, our evidence suggests that tighter disclosure requirements can impose significant acquisition costs on bidders and thus slow down takeover activity.
Abivertinib in patients with T790M‐positive advanced NSCLC and its subsequent treatment with osimertinib
Authors: Wang Hanping , Pan Ruili , Zhang Xiaotong , Si Xiaoyan , Wang Mengzhao , Zhang Li
Published: January 2020

Background

Abivertinib is a novel oral, third generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) that overcomes T790M‐induced resistance in non‐small cell lung cancer (NSCLC) patients. Here, we report the results of a complete and detailed clinical data of patients treated with abivertinib at our hospital in a phase I dose escalation/expansion study of abivertinib.

Methods

NSCLC patients with the EGFR T790M mutation were orally administered abivertinib (150–300 mg) twice daily for cycles of 28 continuous days and tumor response was assessed. Further data regarding subsequent treatment protocols and survival were collected.

Results

A total of 28 NSCLC patients were included. Of the 24 assessable patients, 12 (50%) achieved a partial response (PR), and six (25%) achieved stable disease (SD). Median progression‐free survival (PFS) was 5.9 months (95% confidence interval (CI): 3.259–8.541) and median overall survival (OS) was 17.9 months (95% CI: 11.36–24.5). For salvage therapy in 15 (53.6%) patients after abivertinib, the median PFS following osimertinib treatment was 12 months. The median total treatment duration for the two third‐generation EGFR TKIs was 15.9 months (95% CI: 12.5–19.3). The most frequent abivertinib‐associated adverse effects were elevated hepatic transaminases (10/28, 35.7%) and diarrhea (10/28, 35.7%).

Conclusions

Abivertinib is a unique novel third‐generation EGFR TKI with good tolerance and efficacy in EGFR T790M(+) NSCLC patients. For patients with progressive disease after treatment with abivertinib, osimertinib could be an option for subsequent therapy but further studies are required.

Key points

Abivertinib is a novel third‐generation EGFR TKI targeting the EGFR T790M mutation

Abivertinib is well tolerated and efficacious in T790M‐positive patients

Abivertinib has a unique structure, efficacy, and resistance mechanism compared with osimertinib

Osimertinib treatment after AC0010 showed a good response
The PalaeoEnvironments and ARchaeological Landscapes (PEARL) project: Recent findings from Neolithic sites in Northern Oman
Authors: Parton Ash , Bretzke Knut
Published: January 2020

The PalaeoEnvironments and ARchaeological Landscapes (PEARL) research project is a joint German–British project with the principal objective of developing a framework of past human occupation and landscape change in south‐eastern Arabia. Fieldwork during 2018 and 2019 involved the systematic survey and excavation of sites in the Rustaq and Ibri regions of Northern Oman, with the aim of establishing the nature and timing of human occupation and landscape change during the Early Holocene period (c. 10,000–7,000 years BP). Further to the findings previously reported, results from recent excavations of the site Hayy al‐Sarh in Rustaq revealed the presence of animal remains, stone and shell beads and stone structures, indicating a large Neolithic settlement with burial areas. In addition, preliminary excavations at a rock shelter site near Ibri have revealed stratified archaeological remains, including a Fasad‐type assemblage. Future fieldwork will further develop archaeological and palaeoenvironmental records to help build a framework for studying cultural and natural developments in Northern Oman.
Development of a computerized adaptive substance use disorder scale for screening and measurement: the CAT‐SUD
Authors: Gibbons Robert D. , Alegria Margarita , Markle Sheri , Fuentes Larimar , Zhang Liting , Carmona Rodrigo , Collazos Francisco , Wang Ye , Baca‐García Enrique
Published: January 2020

Background and aims

The focus of this paper is on the improvement of substance use disorder (SUD) screening and measurement. Using a multi‐dimensional item response theory model, the bifactor model, we provide a psychometric harmonization between SUD, depression, anxiety, trauma, social isolation, functional impairment and risk‐taking behavior symptom domains, providing a more balanced view of SUD. The aims are to (1) develop the item‐bank, (2) calibrate the item‐bank using a bifactor model that includes a primary dimension and symptom‐specific subdomains, (3) administer using computerized adaptive testing (CAT) and (4) validate the CAT‐SUD in Spanish and English in the United States and Spain.

Design

Item bank construction, item calibration phase, CAT‐SUD validation phase.

Setting

Primary care, community clinics, emergency departments and patient‐to‐patient referrals in Spain (Barcelona and Madrid) and the United States (Boston and Los Angeles).

Participants/cases

Calibration phase: the CAT‐SUD was developed via simulation from complete item responses in 513 participants. Validation phase: 297 participants received the Composite International Diagnostic Interview (CIDI) and the CAT‐SUD.

Measurements

A total of 252 items from five subdomains: (1) SUD, (2) psychological disorders, (3) risky behavior, (4) functional impairment and (5) social support. CAT‐SUD scale scores and CIDI SUD diagnosis.

Findings

Calibration: the bifactor model provided excellent fit to the multi‐dimensional item bank; 168 items had high loadings (> 0.4 with the majority > 0.6) on the primary SUD dimension. Using an average of 11 items (four to 26), which represents a 94% reduction in respondent burden (average administration time of approximately 2 minutes), we found a correlation of 0.91 with the 168‐item scale (precision of 5 points on a 100‐point scale). Validation: strong agreement was found between the primary CAT‐SUD dimension estimate and the results of a structured clinical interview. There was a 20‐fold increase in the likelihood of a CIDI SUD diagnosis across the range of the CAT‐SUD (AUC = 0.85).

Conclusions

We have developed a new approach for the screening and measurement of SUD and related severity based on multi‐dimensional item response theory. The bifactor model harmonized information from mental health, trauma, social support and traditional SUD items to provide a more complete characterization of SUD. The CAT‐SUD is highly predictive of a current SUD diagnosis based on a structured clinical interview, and may be predictive of the development of SUD in the future.