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Article
Publication date: 6 September 2024

Nour Mani, Nhiem Tran, Alan Jones, Azadeh Mirabedini, Shadi Houshyar and Kate Fox

The purpose of this study is therefore to detail an additive manufacturing process for printing TiD parts for implant applications. Titanium–diamond (TiD) is a new composite that…

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Abstract

Purpose

The purpose of this study is therefore to detail an additive manufacturing process for printing TiD parts for implant applications. Titanium–diamond (TiD) is a new composite that provides biocompatible three-dimensional multimaterial structures. Thus, the authors report a powder-deposition and print optimization strategy to overcome the dual-functionality gap by printing bulk TiD parts. However, despite favorable customization outcomes, relatively few additive manufacturing (AM) feedstock powders offer the biocompatibility required for medical implant and device technologies.

Design/methodology/approach

AM offers a platform to fabricate customized patient-specific parts. Developing feedstock that can be 3D printed into specific 3D structures while providing a favorable interface with the human tissue remains a challenge. Using laser metal deposition, feedstock powder comprising diamond and titanium was co-printed into TiD parts for mechanical testing to determine optimal manufacturing parameters.

Findings

TiD parts were fabricated comprising 30% and 50% diamond. The composite powder had a Hausner ratio of 1.13 and 1.21 for 30% and 50% TiD, respectively. The flow analysis (Carney flow) for TiD 30% and 50% was 7.53 and 5.15 g/s. The authors report that the printing-specific conditions significantly affect the integrity of the printed part and thus provide the optimal manufacturing parameters for structural integrity as determined by micro-computed tomography, nanoindentation and biocompatibility of TiD parts. The hardness, ultimate tensile strength and yield strength for TiD are 4–6 GPa (depending on build position), 426 MPa and 375 MPa, respectively. Furthermore, the authors show that increasing diamond composition to 30% results in higher osteoblast viability and lower bacteria count than titanium.

Originality/value

In this study, the authors provide a clear strategy to manufacture TiD parts with high integrity, performance and biocompatibility, expanding the material feedstock library and paving the way to customized diamond implants. Diamond is showing strong potential as a biomedical material; however, upscale is limited by conventional techniques. By optimizing AM as the avenue to make complex shapes, the authors open up the possibility of patient-specific diamond implant solutions.

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Rapid Prototyping Journal, vol. 30 no. 10
Type: Research Article
ISSN: 1355-2546

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Expert briefing
Publication date: 4 December 2015

Al-Nour Party was the only Islamist political group to participate in the elections. However, the conservative Salafist party has seen its fortunes decline, from being the second…

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DOI: 10.1108/OXAN-DB207116

ISSN: 2633-304X

Keywords

Geographic
Topical
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Article
Publication date: 18 August 2023

Imen Khanchel and Naima Lassoued

This study examines the effects of corporate governance on market returns during the first four waves of the COVID-19 crisis.

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Abstract

Purpose

This study examines the effects of corporate governance on market returns during the first four waves of the COVID-19 crisis.

Design/methodology/approach

Event study and linear regression methods were applied on a sample of 293 US firms.

Findings

The results show that differences in abnormal returns are more significant during the second wave of COVID-19 and the two following waves. Moreover, estimations show that good corporate governance alleviated the effect of COVID-19 during the second wave and the two following waves. However, corporate governance did not affect abnormal returns during the first wave. Furthermore, evidence highlights that the effect of corporate governance is more observed in the industries most affected by COVID-19 than in the least affected industries.

Originality/value

Many studies have attempted to investigate the effect of corporate governance on stock returns during the first wave of the pandemic. However, to the authors' knowledge, this is the first study that focuses on different waves that occurred during 2020 and 2021.

Details

Review of Behavioral Finance, vol. 16 no. 2
Type: Research Article
ISSN: 1940-5979

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Article
Publication date: 1 June 2005

Li‐teh Sun

Man has been seeking an ideal existence for a very long time. In this existence, justice, love, and peace are no longer words, but actual experiences. How ever, with the American…

831

Abstract

Man has been seeking an ideal existence for a very long time. In this existence, justice, love, and peace are no longer words, but actual experiences. How ever, with the American preemptive invasion and occupation of Afghanistan and Iraq and the subsequent prisoner abuse, such an existence seems to be farther and farther away from reality. The purpose of this work is to stop this dangerous trend by promoting justice, love, and peace through a change of the paradigm that is inconsistent with justice, love, and peace. The strong paradigm that created the strong nation like the U.S. and the strong man like George W. Bush have been the culprit, rather than the contributor, of the above three universal ideals. Thus, rather than justice, love, and peace, the strong paradigm resulted in in justice, hatred, and violence. In order to remove these three and related evils, what the world needs in the beginning of the third millenium is the weak paradigm. Through the acceptance of the latter paradigm, the golden mean or middle paradigm can be formulated, which is a synergy of the weak and the strong paradigm. In order to understand properly the meaning of these paradigms, however, some digression appears necessary.

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International Journal of Sociology and Social Policy, vol. 25 no. 6/7
Type: Research Article
ISSN: 0144-333X

Keywords

Available. Open Access. Open Access
Article
Publication date: 28 June 2019

Sabina Abou Malham, Mélanie-Ann Smithman, Nassera Touati, Astrid Brousselle, Christine Loignon, Carl-Ardy Dubois, Kareen Nour, Antoine Boivin and Mylaine Breton

Centralized waiting lists (CWLs) for patient attachment to a primary care provider have been implemented across Canada, including Quebec. Little is known about the implementation…

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Abstract

Purpose

Centralized waiting lists (CWLs) for patient attachment to a primary care provider have been implemented across Canada, including Quebec. Little is known about the implementation of CWLs and the factors that influence implementation outcomes of such primary care innovations. The purpose of this paper is to explain variations in the outcomes of implementation by analyzing the characteristics of CWLs and contextual factors that influence their implementation.

Design/methodology/approach

A multiple qualitative case study was conducted. Four contrasting CWLs were purposefully selected: two relatively high-performing and two relatively low-performing cases with regard to process indicators. Data collected between 2015 and 2016 drew on three sources: 26 semi-structured interviews with key stakeholders, 22 documents and field notes. The Consolidated Framework for Implementation Research was used to identify, through a cross-case comparison of ratings, constructs that distinguish high from low-performing cases.

Findings

Five constructs distinguished high from low-performing cases: three related to the inner setting: network and communications; leadership engagement; available resources; one from innovation characteristics: adaptability with regard to registration, evaluation of priority and attachment to a family physician; and, one associated with process domain: engaging. Other constructs exerted influence on implementation (e.g. outer setting, individual characteristics), but did not distinguish high and low-performing cases.

Originality/value

This is the first in-depth analysis of CWL implementation. Results suggest important factors that might be useful in efforts to continuously improve implementation performance of CWLs and similar innovations.

Details

Journal of Health Organization and Management, vol. 33 no. 5
Type: Research Article
ISSN: 1477-7266

Keywords

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Abstract

Subject area

Organizational behavior.

Study level/applicability

Upper-level undergraduate courses, introductory MBA courses.

Case overview

This case study unveils the story of Al Qatef Holding, a Gulf-based real estate company that was created on the vision of one ambitious businessman. The case begins in 1999 when Faisal Al Qatef decided to pursue his dream of establishing a full-fledged corporation to serve the mounting real estate needs in the Gulf region. Faisal started his company by launching a number of residential and commercial property developments in his home country, Kuwait. During its early years of operation, Al Qatef Holding witnessed an impressive success and an increasing appetite for growth. A couple of years down the road, the founder made the strategic decision to open a new branch in Doha to seize the opportunity that the Qatari real estate market presented at that time. Yet, along with the rapid expansion came the company’s incapacity to deliver on its promises, generating many customer complaints and a damaged reputation owing to poor construction quality and significant delays in project delivery. The case describes the multiple challenges experienced by Al Qatef Holding throughout its evolution and portrays the external and internal dynamics that led to its initial success and subsequent decline.

Expected learning outcomes

Assess the internal dynamics and challenges that are associated with the management of small firms; discuss how leadership styles and characteristics affect the organizational climate and employee performance; demonstrate understanding of how corporate culture drives human behavior in the workplace; perform an analysis of firm structure to estimate its impact on individual and organizational outcomes; apply different techniques for enhancing employee motivation in organizations; and evaluate the effectiveness of managerial decisions and provide recommendations for securing corporate survival.

Supplementary Materials

Teaching Notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes.

Subject code

CSS 6: Human Resource Management.

Details

Emerald Emerging Markets Case Studies, vol. 7 no. 3
Type: Case Study
ISSN: 2045-0621

Keywords

Available. Open Access. Open Access
Article
Publication date: 18 November 2019

Ebtisam Hussein

Years after the 2011 uprising Egypt, it seems that the country’s non-Islamist parties are still included in the political game. After significant alterations in their political…

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Abstract

Purpose

Years after the 2011 uprising Egypt, it seems that the country’s non-Islamist parties are still included in the political game. After significant alterations in their political sphere by mid-2013 at the advent of the Muslim Brother exclusion and the subsequent discrediting of Salafi al-Nour party, non-Islamist parties took clear part in the mobilization for presidential elections (2014, 2018) and competed for legislative seats in 2015. Nonetheless, it is difficult to expect them to turn into long-term key political players with clear-cut ideological postures, unique platforms and strong grass root mobilization. With the exception of the electoral gains scored by numbered parties like Free Egyptians’ party and Nation’s Future in 2015 legislative elections, these parties seem to be lagging behind esp. in terms of their popular base; who became winners at the advent of the radical exclusion of the MB from July 2013 onwards.

Design/methodology/approach

This paper is based on archival research and guided by basic assumptions of rational choice institutionalism, mainly game-theoretic versions of the approach. It is divided into four sections, three of them are chronological and the last one is thematic.

Findings

Egypt’s non-Islamists engaged in the post-2011 political sphere, with strong Islamist rivals crippling their political chances in the first two years following the 2011 uprising. They surely capitalized on the exclusion and discrediting of the latter, but they suffered lack of ideological clarity and fragmentation from 2011 onwards with no enough evidence these weaknesses were surpassed after Islamists were “out of their way”. The only strand of non-Islamist parties which came out as “game winners” were those possessing the resources and enjoying overt “friendly” relations with al-Sisi regime. Nonetheless, internal conflicts inside key secularist parties shed light on their capacity to turn into long-term players in Egypt’s political sphere.

Originality/value

Very few papers were published on Egypt’s secularists parties after the 2011 uprising from the perspective of the alteration that occurred in their political environment affecting their political weight and gains. More generally, literature on non-ruling parties in authoritarian contexts mostly reduce these parties to secondary roles allocated by ruling regimes. The paper seeks to overcome both shortages.

Details

Review of Economics and Political Science, vol. 6 no. 2
Type: Research Article
ISSN: 2356-9980

Keywords

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Article
Publication date: 12 May 2022

Anna Lathrop, Julia W. Szagdaj and Nour Abou Jaoude

Faraoyść is a translinguistic portmanteau neologism that describes the moment when oppressive systems are shaken and appear to be coming to an end, and joyful, liberated worlds…

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Abstract

Purpose

Faraoyść is a translinguistic portmanteau neologism that describes the moment when oppressive systems are shaken and appear to be coming to an end, and joyful, liberated worlds feel within reach. The purpose of this research is to demonstrate that faraoyść helped participants helped participants to expand their situated imaginings, which increased their capacity to imagine decolonized worlds.

Design/methodology/approach

This research was guided by faraoyść as a conceptual framework that explores the empirical experience of joy through collaborative world-building activities. These praxis-based exercises were tested in a series of workshops both at the 2020 UNESCO Futures Literacy Summit and in collaboration with Negligence Refugees from Lebanon.

Findings

When activated by collaboratively designed speculative objects and stories generated through the lens of faraoyść, participants created spaces of rhizomatic world-building that allowed them to imagine beyond the boundaries of their situated imaginings. Once participants had mapped the ways their imaginations were limited by current colonial systems of power, they were able to reorient their roles and develop new means to act within decolonized systems.

Originality/value

Faraoyść is a novel conceptual framework that contributes to current movements to decolonize futuring and foresight. This paper also introduces the concepts of rhizomatic world-building – an emergent approach to co-imagination, and situated imaginings, which are the systemic frameworks within which one imagines the ways the world has, is, will and must work. In practice, faraoyść is grounded in abundance and the power of liberatory joy to strengthen and celebrate local traditions, storytelling, world-building and community power.

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Article
Publication date: 27 September 2024

Nadjet Khatir and Hassiba Madani

The present study aims to analyze the impact of digital transformation on achieving outstanding performance in educational administration, improving and developing electronic…

117

Abstract

Purpose

The present study aims to analyze the impact of digital transformation on achieving outstanding performance in educational administration, improving and developing electronic services and facilitating beneficiaries’ access to services.

Design/methodology/approach

This study applied descriptive/analytical quantitative and qualitative methodologies to a sample of 206 employees from an educational administration. Confirmatory inferential analysis was conducted to investigate the relationship and mutual impact between the variables under examination by Structural Equation Modeling requirements.

Findings

The study found that the model effectively explained the phenomenon being studied with digital transformation efforts in infrastructure, human resources and culture, as hypothesized. However, an unexpected negative relationship was found between the transformation strategy and outstanding performance. Interviews with the participants confirmed gradual improvements in various aspects of the digital transformation.

Practical implications

This study underscores the immediate and tangible benefits of transitioning from traditional to advanced electronic governments. This transformation is necessary and highly advantageous, as it bolsters the administration’s ability to meet technical, professional and human requirements, elevating the educational system’s overall performance.

Originality/value

This study stands out for its unique focus on digital transformation as an independent variable, a perspective evaluated using four indicators. The study’s exploration of how these factors influence the performance of the directorate of education is a significant contribution to the field. The study’s approach saves time, effort and money and enhances employee performance and task completion speed with good quality and efficiency, thereby improving services for the educational system’s beneficiaries.

Details

International Journal of Educational Management, vol. 38 no. 7
Type: Research Article
ISSN: 0951-354X

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Article
Publication date: 8 May 2017

Kamal Al Yammahi and Mohan Guruswamy

This paper aims to consolidate the constructs of national responsibility (NR) and corporate social responsibility (CSR) in the context of corporate responsibilities. The paper…

499

Abstract

Purpose

This paper aims to consolidate the constructs of national responsibility (NR) and corporate social responsibility (CSR) in the context of corporate responsibilities. The paper traces the historical evolution of the concepts of NR and CSR with a discussion on bridging CSR with NR. The aim of this paper is to develop an understanding of the potential of CSR to support NR.

Design/methodology/approach

This paper reviews the historical evolution of the CSR and NR concepts to identify how CSR can be integrated and focused towards supporting NR.

Findings

NR needs partnership and support from the corporate and commercial world to direct its efforts towards effective implementation of CSR to ensure NR.

Practical implications

The paper offers the implications for the development of a powerful CSR, its relation with NR and how the linkage should be developed at an organizational level.

Originality/value

This research paper fulfils the need to study the role of CSR in supporting the NR at a corporate level.

Details

Journal of Global Responsibility, vol. 8 no. 1
Type: Research Article
ISSN: 2041-2568

Keywords

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