Search results

1 – 10 of 46
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 12 November 2020

James Robert Wingham, Maha Omran, Joanna Shepherd and Candice Majewski

The use of laser sintering (LS) in the medical sector has increased dramatically in recent years. With the move towards direct use of these parts in clinical applications, there…

167

Abstract

Purpose

The use of laser sintering (LS) in the medical sector has increased dramatically in recent years. With the move towards direct use of these parts in clinical applications, there is a greater need to understand the effects of standard processes on the part properties. The purpose of this study is to determine the effect that steam sterilisation has on the mechanical properties of LS polyamide 12 parts.

Design/methodology/approach

The research presented here focusses on the effect of a single steam sterilisation cycle on the mechanical properties of polyamide 12 parts manufactured using LS. The influence of water content on the properties was investigated, with additional drying steps trialled to establish the potential to reverse any changes observed and to determine their root cause.

Findings

The results show that steam sterilisation has a significant effect on the mechanical properties of LS polyamide 12 parts, with a 39% reduction in elastic modulus, a 13% decrease in ultimate tensile strength and a 64% increase in the elongation at break. These properties were also all found to correlate with the water content, suggesting that this was the cause of the difference. The original properties of the parts were able to be recovered after oven drying.

Practical implications

These results show that with an additional drying step, LS polyamide 12 parts can be steam sterilised with no effect on the mechanical properties.

Originality/value

This is believed to be the first investigation into the effects of steam sterilisation in isolation on LS polyamide 12 parts, the first instance of drying parts to recover mechanical properties and the first instance of multiple water content measurements being directly linked to the mechanical properties.

Details

Rapid Prototyping Journal, vol. 27 no. 1
Type: Research Article
ISSN: 1355-2546

Keywords

Access Restricted. View access options
Article
Publication date: 28 January 2020

James Robert Wingham, Robert Turner, Joanna Shepherd and Candice Majewski

X-Ray-computed micro-tomography (micro-CT) is relatively well established in additive manufacturing as a method to determine the porosity and geometry of printed parts and, in…

311

Abstract

Purpose

X-Ray-computed micro-tomography (micro-CT) is relatively well established in additive manufacturing as a method to determine the porosity and geometry of printed parts and, in some cases, the presence of inclusions or contamination. This paper aims to demonstrate that micro-CT can also be used to quantitatively analyse the homogeneity of micro-composite parts, in this case created using laser sintering (LS).

Design/methodology/approach

LS specimens were manufactured in polyamide 12 with and without incorporation of a silver phosphate glass additive in different sizes. The specimens were scanned using micro-CT to characterise both their porosity and the homogeneity of dispersion of the additive throughout the volume.

Findings

This work showed that it was possible to use micro-CT to determine information related to both porosity and additive dispersion from the same scan. Analysis of the pores revealed the overall porosity of the printed parts, with linear elastic fracture mechanics used to identify any pores likely to lead to premature failure of the parts. Analysis of the additive was found to be possible above a certain size of particle, with the size distribution used to identify any agglomeration of the silver phosphate glass. The particle positions were also used to determine the complete spatial randomness of the additive as a quantitative measure of the dispersion.

Practical implications

This shows that micro-CT is an effective method of identifying both porosity and additive agglomeration within printed parts, meaning it can be used for quality control of micro-composites and to validate the homogeneity of the polymer/additive mixture prior to printing.

Originality/value

This is believed to be the first instance of micro-CT being used to identify and analyse the distribution of an additive within a laser sintered part.

Details

Rapid Prototyping Journal, vol. 26 no. 4
Type: Research Article
ISSN: 1355-2546

Keywords

Available. Open Access. Open Access
Article
Publication date: 19 October 2020

Joanna Radomska, Przemysław Wołczek and Aleksandra Szpulak

This study aims to examine the mediating effect of four antecedents of competitive advantage on the linkage of risky strategy to firm performance, measured by revenue dynamics. It…

6317

Abstract

Purpose

This study aims to examine the mediating effect of four antecedents of competitive advantage on the linkage of risky strategy to firm performance, measured by revenue dynamics. It considers the roots of competitive advantage to highlight different patterns and foundations of achieving superior performance. It investigates whether pursuing a risky strategy fosters revenue dynamics growth and whether different mediators are included in that relationship.

Design/methodology/approach

Path analysis (structural equation modeling) method is used to analyze data from 122 companies of various sizes and industries. All respondents were responsible for executing strategic management processes. The paper used the subjective perspective, which is based on the individual opinion of senior company managers and owners.

Findings

The authors find a positive relationship between risky strategy and firm performance, but no evidence of a mediating role of competitive advantage and dynamic growth in this relationship. Competitive advantage should be perceived as a set of integrated factors that can be analyzed from an aggregated perspective. Integrating all antecedents requires a holistic and systematic approach and the development of a particular mindset. Aggregated competitive advantage is related to setting dynamic growth as a priority. However, no relationship between risky strategy and achieving competitive advantage, or between implementing a risky strategy and setting dynamic growth as a priority, is observed, which was assumed to explain the revenue dynamics growth.

Research limitations/implications

Secondary data should be analyzed to explore how risky strategies are manifested, and which managerial decisions are reflected in high-level risk. A multidimensional scale could be developed to check how risk shapes the constructs’ interdependence. Therefore, the dynamic capabilities approach could be further expanded.

Practical implications

This research offers insights into the short-term relationship between risky strategy and revenue dynamics, although competitive advantage does not mediate that relationship. Special attention should be paid to the selected antecedents of competitive advantage, as they influence dynamic growth.

Originality/value

This work provides insights into different antecedents of competitive advantage, which is not necessarily based on making risky decisions, and into factors that facilitate firm performance measured by revenue dynamics.

Details

European Business Review, vol. 33 no. 3
Type: Research Article
ISSN: 0955-534X

Keywords

Available. Open Access. Open Access
Article
Publication date: 19 December 2023

Rafal Kusa, Marcin Suder, Joanna Duda, Wojciech Czakon and David Juárez-Varón

This study investigates the impact of entrepreneurial orientation (EO) and knowledge management (KM) on firm performance (PERF), as well as the mediating role of KM in the EO–PERF…

3105

Abstract

Purpose

This study investigates the impact of entrepreneurial orientation (EO) and knowledge management (KM) on firm performance (PERF), as well as the mediating role of KM in the EO–PERF (EO-PERF relationship). In particular, this study aims to explain the impact of KM on the relationship between the EO dimensions and PERF; dimensions are risk-taking (RT), innovativeness (IN) and proactiveness (PR).

Design/methodology/approach

This study uses structural equation modelling and fuzzy-set qualitative comparative analysis (fsQCA) methodologies to explore target relationships. The sample consists of 150 small furniture manufacturers operating in Poland (out of 1,480 in the population).

Findings

The study findings show that KM partially mediates the IN–PERF relationship. Furthermore, fsQCA reveals that KM accompanied by IN is a core condition that leads to PERF. Moreover, the absence of KM (accompanied by the absence of RT and IN) leads to the absence of PERF. In addition, the results show that all the variables examined (RT, IN, PR and KM) positively impact PERF.

Originality/value

This study explores the role of KM in the context of EO and its impact on PERF in the low-tech industry. The study uses simultaneously two methodologies that represent different approaches in the search for the expected relationships. The findings reveal that KM mediates the EO-PERF relationship.

Details

Journal of Knowledge Management, vol. 28 no. 11
Type: Research Article
ISSN: 1367-3270

Keywords

Access Restricted. View access options
Book part
Publication date: 22 July 2024

Paul Spee, Joanna Kho, Anna Jenkins and Paula Jarzabkowski

This study addresses an important yet underdeveloped topic in routine dynamics research: how do routines form? Given the salience of routine formation in new ventures, this study…

Abstract

This study addresses an important yet underdeveloped topic in routine dynamics research: how do routines form? Given the salience of routine formation in new ventures, this study is based on a single, longitudinal case study, following MatchMe, a technology-enabled startup. Building on findings from MatchMe, this study posits routine formation as a layered process. Rather than replacing established routines, routine formation was sequential. New routines were formed in addition to routines that continued to run in parallel. Routine formation was guided by organizational goals and monitoring their attainment. Multiple routines are formed to explore and create possibilities by shifting espoused ideals to attain organizational goals. This study advances routine dynamics in three distinct ways. First, it elaborates on a predominantly binary view of routine formation. Second, it extends work focused on the active creation of patterns. Third, it extends the response and outcomes of routine change, providing avenues for future research to explore strategic consequences of routines for outcomes typically associated with firm performance.

Details

Routine Dynamics: Organizing in a World in Flux
Type: Book
ISBN: 978-1-83549-553-7

Keywords

Access Restricted. View access options
Book part
Publication date: 17 February 2025

Mehmet Barca

This chapter responds to recent calls for a more in-depth examination of the crucial role played by non-managerial employees, including those in various strata such as blue and…

Abstract

This chapter responds to recent calls for a more in-depth examination of the crucial role played by non-managerial employees, including those in various strata such as blue and gray collars, from an alternative neo-human relations perspective. By exploring recent initiatives aimed at developing a new theory of management or extending existing ones, the goal is to broaden the conceptualization of management to include non-managerial perspectives, thereby contributing to the advancement of management theory. From this, the recent efforts in management theory—universalistic, strategic/contingent, and value-based—are evaluated for their potential. Utilizing the method of synthesizing, the aim is to introduce a significantly reconceptualizing of existing efforts toward a candidate explanation that leads to default theory enabling to generate and solve problems concerning the phenomenon of non-managerial employees in management processes. Toward this end, two arguments are put forward. First, the constrictions inherent in current management theories devalue and underestimate the significance of blue- and gray-collar employees in the overarching management processes. Second, the future trajectory of management will involve three integral dimensions: the universal dimension of cooperation and coordination inherent in management, the strategic responses to continuously evolving environmental changes as the management of contingencies, and the normative dimension of value-creation to address the specific needs of blue- and gray-collar employees. By synthesizing these three dimensions, we provide insightful signposts for the prospective evolution of management theories.

Access Restricted. View access options
Article
Publication date: 13 November 2023

Emma Fleck, Joanna Pishko and Betsy Verhoeven

Prior research has drawn from entrepreneurial practice to conceptualize a variety of discreet narrative types. Research has also demonstrated that narratives are a practical and…

298

Abstract

Purpose

Prior research has drawn from entrepreneurial practice to conceptualize a variety of discreet narrative types. Research has also demonstrated that narratives are a practical and useful tool for entrepreneurs in many stages of the entrepreneurial process. This paper proposes a new narrative, shared narrative, and a conceptual model for how entrepreneurs might build such a narrative that is strategic in nature.

Design/methodology/approach

First, the authors review the types of narrative and introduce shared narrative as an account that narrativizes both the entrepreneur and relevant stakeholders. Then, integrating theoretical concepts from constitutive rhetoric and value co-creation, the authors introduce a conceptual framework as a three-stage process guide for entrepreneurs to build shared narratives for strategic stakeholder engagement. Leveraging the power of shared roles and salient values as the key to pre-story building process, the intended audience of the story (i.e. consumer, investor) is present from the inception of the story and integral to its success.

Findings

The authors assert that entrepreneurs need to adopt a shared narrative approach for strategic purposes. Further, the development of a shared narrative begins at the pre-story process of co-creation, focused on identifying the roles and values entrepreneurs share with their various stakeholders. Incorporating these shared roles and salient values into the entrepreneurial narrative will result in a narrative that is compelling, authentic and adaptable to different stages of the entrepreneurial process and for multiple stakeholder audiences. Post-story, this authentic narrative will result in higher levels of engagement from both the audience and the entrepreneur in the form of reciprocal action.

Originality/value

This paper proposes a new narrative and provides a structured process to support entrepreneurs in building shared narratives for strategic engagement with a wide range of stakeholders.

Details

International Journal of Entrepreneurial Behavior & Research, vol. 30 no. 1
Type: Research Article
ISSN: 1355-2554

Keywords

Access Restricted. View access options
Article
Publication date: 11 October 2020

Tessa Withorn, Joanna Messer Kimmitt, Carolyn Caffrey, Anthony Andora, Cristina Springfield, Dana Ospina, Maggie Clarke, George Martinez, Amalia Castañeda, Aric Haas and Wendolyn Vermeer

This paper aims to present recently published resources on library instruction and information literacy, providing an introductory overview and a selected annotated bibliography…

8931

Abstract

Purpose

This paper aims to present recently published resources on library instruction and information literacy, providing an introductory overview and a selected annotated bibliography of publications covering various library types, study populations and research contexts.

Design/methodology/approach

This paper introduces and annotates English-language periodical articles, monographs, dissertations, reports and other materials on library instruction and information literacy published in 2019.

Findings

The paper provides a brief description of all 370 sources and highlights sources that contain unique or significant scholarly contributions.

Originality/value

The information may be used by librarians, researchers and anyone interested as a quick and comprehensive reference to literature on library instruction and information literacy.

Details

Reference Services Review, vol. 48 no. 4
Type: Research Article
ISSN: 0090-7324

Keywords

Access Restricted. View access options
Article
Publication date: 2 April 2020

Julian Himmerich

Psychodynamic psychotherapy is increasingly adapted and used with individuals with intellectual disability (ID) and mental health difficulties. However, the evidence base is still…

412

Abstract

Purpose

Psychodynamic psychotherapy is increasingly adapted and used with individuals with intellectual disability (ID) and mental health difficulties. However, the evidence base is still small and largely based on case studies and small trials whose participants mainly have mild to moderate ID. This paper aims to review and critique the literature in regards to the adaptations; and the effectiveness of psychodynamic psychotherapy for those with severe and profound ID.

Design/methodology/approach

A systematic literature search of PsycINFO, Social Policy and Practice, Medline, Cumulative Index to nursing and allied health literature and applied social sciences index and abstracts was conducted. Six studies met inclusion criteria and underwent a quality evaluation and critical review.

Findings

Six papers (all case studies) met inclusion criteria and underwent a quality evaluation and critical review. Some adaptations to therapy were reported, such as a more flexible therapeutic frame and increased use of the physical environment as a therapeutic tool. Due to significant methodological weaknesses of the included studies, it is yet unclear whether psychodynamic psychotherapy is an effective intervention for individuals with severe and profound ID.

Research limitations/implications

Only a small number of case studies met the inclusion criteria. Further research should use more robust outcome measures, larger samples and compare psychodynamic psychotherapy to alternative interventions.

Originality/value

This paper is the first to review the psychodynamic psychotherapy literature with regard to its effectiveness as a treatment specifically for individuals with severe and profound ID and mental health difficulties.

Details

Advances in Mental Health and Intellectual Disabilities, vol. 14 no. 3
Type: Research Article
ISSN: 2044-1282

Keywords

Available. Open Access. Open Access
Article
Publication date: 30 April 2021

Lakshmi Balachandran Nair

Many management scholars view templates as rigid rulebooks suffocating qualitative research. This viewpoint article recommends that, instead, templates should be viewed through…

2725

Abstract

Purpose

Many management scholars view templates as rigid rulebooks suffocating qualitative research. This viewpoint article recommends that, instead, templates should be viewed through the lens of organizational routines.

Design/methodology/approach

To facilitate this viewpoint, this article first clarifies the confusions surrounding templates. It points out that how using templates, like following routines in an organization, constitutes three parts - the artifact, the ostensive and the performative; the latter two being often neglected by template critics. The use of templates is encouraged by discussing the learning advantages for novice researchers, through an autoethnographic note narrating the author’s own research and teaching experiences.

Findings

This article deliberates upon the criticisms against templates. It then discusses templates using a perspective offered by organizational routines. Thereafter, the use of templates in qualitative management research is discussed, with the help of examples from published reports. Finally, the article explains a way of reflexively using templates through an autoethnographic note detailing the author’s own research and teaching experiences.

Originality/value

In its entirety, the article submits that the artifacts offered by the templates and the ostensive and performative engagements of the template-users must co-exist for co-creating excellent qualitative research.

Details

Qualitative Research in Organizations and Management: An International Journal, vol. 16 no. 2
Type: Research Article
ISSN: 1746-5648

Keywords

1 – 10 of 46
Per page
102050