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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…

102

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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Article
Publication date: 31 January 2023

Leonard Walletzký, Luca Carrubbo, Nabil Georges Badr, Monica Dragoicea, Angeliki Maria Toli and Salem Badawi

The COVID-19 pandemic started a new era in understanding the topic of resilience and adaptability. The human society has not faced such a widespread global challenge until now…

235

Abstract

Purpose

The COVID-19 pandemic started a new era in understanding the topic of resilience and adaptability. The human society has not faced such a widespread global challenge until now. This paper aims to address a context change influenced by the COVID-19 pandemic, using a case study in high education. While the character of the issues emerging is the same as in any other domain, in high education, the principles and consequences can be more directly studied and analyzed.

Design/methodology/approach

This paper describes a framework to evaluate how the context of the tertiary education service has been disrupted and the influence on the adherence of the students to the educational process, via primary quantitative data collection. This paper tackles the problem of distinguishing the change in context and context change and the possibility of system reconfiguration.

Findings

To properly face the evolving conditions induced by the pandemic, the education service system must be aligned to the imposed emergency situations, trying to “find” where the changes have emerged, i.e. what kind of reconfiguration is, whether it appears in the goals or in the service system itself. Furthermore, this study discusses how the findings can be valuable and applied to situations beyond the pandemic, in other cases of context disruption to highlight how general the service activities are within our reconfiguration approach.

Originality/value

From a theoretical point of view, this work is in line with main assumptions of system thinking, by confirming several insights of service systems’ behavior, even in a logic of B2B interactions (from the offer side); first in terms of openness and adaptation, in addition to readiness to change and – when and how – this change can occur. From a practical point of view, this paper’s contribution is directed toward achieving the more successful change management process, as reached together by motivated partners working hard for a common final goal. Realizing that the pandemic has brought a completely new context of education, managers should focus now on monitoring all aspects of the education business, not only directly affected projects and processes.

Details

Journal of Business & Industrial Marketing, vol. 39 no. 6
Type: Research Article
ISSN: 0885-8624

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Article
Publication date: 8 August 2016

William D. Diamond

This paper aims to examine preferences for different smoking cessation tools, investigates smokers’ perceptions of these tools by examining their brand personalities and…

1095

Abstract

Purpose

This paper aims to examine preferences for different smoking cessation tools, investigates smokers’ perceptions of these tools by examining their brand personalities and determines whether these perceptions predict intentions to use particular cessation tools.

Design/methodology/approach

Two surveys of smokers evaluated cessation tools from electronic cigarettes to hypnosis.

Findings

Smokers showed a strong preference for electronic cigarettes over other cessation tools. Different aspects of brand personality predicted intention to use different cessation tools.

Research limitations/implications

The research used online surveys rather than real purchasing behavior. The results indicate that advertisements emphasizing the personality attributes of different cessation tools could be effective in encouraging the use of appropriate cessation tools.

Social implications

If research validates e-cigarettes as a valuable cigarette smoking cessation tool, then public service advertisements encouraging their use should emphasize their sincerity and excitement. If e-cigarettes have a net negative effect on public health, public service advertising should stress that the marketing of e-cigarettes is not sincere.

Originality/value

This research extends the idea of brand personality, showing how it can encourage behavior that promotes public health goals.

Details

Journal of Consumer Marketing, vol. 33 no. 5
Type: Research Article
ISSN: 0736-3761

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Book part
Publication date: 7 November 2022

Nicole Loring

Political corruption takes many forms across different countries and regions. The types of corruption that occur in American politics are drastically different from the…

Abstract

Political corruption takes many forms across different countries and regions. The types of corruption that occur in American politics are drastically different from the clientelism, nepotism, and corrupt electoral practices that are seen in the developing world. This chapter will analyze three distinct cases of political corruption in Southeast Asian politics: clientelism in Cambodia, nepotism in Thailand, and the 2021 coup d'état in Myanmar. All three cases highlight the unique challenges facing developing democracies and reveal that, while political corruption affects all countries to a degree, distinct regional and cultural differences produce different forms of corruption in Southeast Asia than in the United States.

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Scandal and Corruption in Congress
Type: Book
ISBN: 978-1-80117-120-5

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Article
Publication date: 1 April 1990

Leland Campbell and William D. Diamond

Considers the differences between consumer perceptions ofnonmonetary promotions such as free extra product and monetarypromotions such as discounts and rebates. Reports on an…

2973

Abstract

Considers the differences between consumer perceptions of nonmonetary promotions such as free extra product and monetary promotions such as discounts and rebates. Reports on an experiment which found that monetary promotions did not have to be as large as nonmonetary promotions to be noticed by the consumer, and that large incentives make consumers sceptical. Concludes that the decision about which type of promotion to use depends on whether a price‐conscious or a premium product market segment is being sought.

Details

Journal of Consumer Marketing, vol. 7 no. 4
Type: Research Article
ISSN: 0736-3761

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Book part
Publication date: 18 July 2007

Sergio Jara-Díaz

Abstract

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Transport Economic Theory
Type: Book
ISBN: 978-0-08-045028-5

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Book part
Publication date: 1 October 2015

James E. McNulty and Aigbe Akhigbe

Directors help determine the strategic direction of a corporation and are responsible for ensuring the institution has a good system of internal control. Banking institutions…

Abstract

Directors help determine the strategic direction of a corporation and are responsible for ensuring the institution has a good system of internal control. Banking institutions without a strategic direction emphasizing sound lending practices that promote the long-run financial health and viability of the institution will be sued more frequently than peer institutions. Institutions that do not have a good system of internal control will also be sued more frequently. Hence, legal expense is a bank corporate governance measure. We compare the performance of bank legal expense and a widely cited corporate governance index in a regression framework to determine which better predicts bank performance. The regressions indicate legal expense is a much better predictor, hence a better measure of bank corporate governance. Regulators should require legal expense reporting and rank institutions by the ratio of legal expense to assets to help identify institutions with weak governance. Seven case studies illustrate the role of legal expense in corporate governance.

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International Corporate Governance
Type: Book
ISBN: 978-1-78560-355-6

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Book part
Publication date: 23 December 2005

Mukund Narayanamurti and Jonathan A. Batten

Post-crisis policy measures in Asia have focussed on banking sector and market reform. The paper argues that in order to propel growth, banking and market reform in Asia must be…

Abstract

Post-crisis policy measures in Asia have focussed on banking sector and market reform. The paper argues that in order to propel growth, banking and market reform in Asia must be undertaken with the view that they are not mutually exclusive competitive tradeoffs. Rather banks and markets must be viewed as complementary supportive pillars in a financial system. Additionally, legal and functional reform must be undertaken simultaneously. The paper proposes that a likely consequence of doing so will enable creating a four-pillared multi-dimensional growth paradigm in the region to help restore and promote growth.

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Asia Pacific Financial Markets in Comparative Perspective: Issues and Implications for the 21st Century
Type: Book
ISBN: 978-0-76231-258-0

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Book part
Publication date: 4 April 2005

Franco Parisi, Carlos Maquieira and Antonino Parisi

This chapter develops a Probit model that identifies the financial variables explaining the bankruptcy of banking institutions in Ecuador as a function of efficiency, assets…

Abstract

This chapter develops a Probit model that identifies the financial variables explaining the bankruptcy of banking institutions in Ecuador as a function of efficiency, assets, capital, risk and operating income. The implications of this study verify the validity of the solvency theory over the self-fulfilled panic speculations. The criteria used was a high Pseudo R2 and an as high as possible Efficiency Index. The model yielded a Pseudo R2 of 89.14% and an Efficiency Index of 96.7%. The model is useful in preventing bankruptcy of a bank one year in advance.

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Latin American Financial Markets: Developments in Financial Innovations
Type: Book
ISBN: 978-1-84950-315-0

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Article
Publication date: 4 October 2018

Danielle M. Fenimore and Wesley G. Jennings

The purpose of this paper is to use data from the Longitudinal Study of Violent Criminal Behavior in the USA to examine case configurations of violent behavior using a…

626

Abstract

Purpose

The purpose of this paper is to use data from the Longitudinal Study of Violent Criminal Behavior in the USA to examine case configurations of violent behavior using a biopsychosocial framework. Specifically, the theory posits that arguably all behavior is the result of specific combinations of biopsychological (individual) and sociocultural (environmental) characteristics that are interacting within the individual. With regard to criminal and violent behavior, the theoretical assumption is that this maladaptive behavior is the result of a negative interaction between the biopsychological and sociocultural factors.

Design/methodology/approach

The study design consists of secondary data analysis. A conjunctive analysis of case configurations was performed using data from the Longitudinal Survey of Violent Criminal Behavior to formally explore the tenets of Cortés and Gatti’s (1972) biopsychosocial theory.

Findings

The results suggest that there are main effects for ego strength, family problems, family incohesiveness and underachievement as they relate to offending. A possible six-way interaction was also identified within the case configurations that provides empirical support for Cortés and Gatti’s (1972) biopsychosocial theory of deviance.

Originality/value

The present study contributes to the existing biopsychosocial literature by providing insight on the contextual variability in pathways to violent offending. Specifically, the evidence provided indicates that Cortés and Gatti’s (1972) biopsychosocial theory of deviance can be extended to comparing violent and non-violent offenders. Implications for policy and practice are also discussed.

Details

Journal of Criminal Psychology, vol. 8 no. 4
Type: Research Article
ISSN: 2009-3829

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