Arthur Bens, Hermann Seitz, Günter Bermes, Moritz Emons, Andreas Pansky, Barbara Roitzheim, Edda Tobiasch and Carsten Tille
To describe the development of a novel polyether(meth)acrylate‐based resin material class for stereolithography with alterable material characteristics.
Abstract
Purpose
To describe the development of a novel polyether(meth)acrylate‐based resin material class for stereolithography with alterable material characteristics.
Design/methodology/approach
A complete overview of details to composition parameters, the optimization and bandwidth of mechanical and processing parameters is given. Initial biological characterization experiments and future application fields are depicted. Process parameters are studied in a commercial 3D systems Viper stereolithography system, and a new method to determine these parameters is described herein.
Findings
Initial biological characterizations show the non‐toxic behavior in a biological environment, caused mainly by the (meth)acrylate‐based core components. These photolithographic resins combine an adjustable low Young's modulus with the advantages of a non‐toxic (meth)acrylate‐based process material. In contrast to the mostly rigid process materials used today in the rapid prototyping industry, these polymeric formulations are able to fulfill the extended need for a soft engineering material. A short overview of sample applications is given.
Practical implications
These polymeric formulations are able to meet the growing demand for a resin class for rapid manufacturing that covers a bandwidth from softer to stiffer materials.
Originality/value
This paper gives an overview about the novel developed material class for stereolithography and should be therefore of high interest to people with interest in novel rapid manufacturing materials and technology.
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Carola Tröger, Arthur T. Bens, Günter Bermes, Ricarda Klemmer, Johannes Lenz and Stephan Irsen
The purpose of this paper is to describe the ageing behaviour of acrylate‐based resins for stereolithography (SL) technology using different test methods and to investigate these…
Abstract
Purpose
The purpose of this paper is to describe the ageing behaviour of acrylate‐based resins for stereolithography (SL) technology using different test methods and to investigate these effects on polymers.
Design/methodology/approach
Controlling the polymer degradation requires an understanding of many different phenomena, including the different chemical mechanisms underlying structural changes in polymer macromolecules, the influences of polymer morphology, the complexities of oxidation chemistry and the complex reaction pathways of polymer additives. Several ageing characterization experiments are given.
Findings
The paper covers the ageing process analysis of acrylate‐based polymers. An overview of the ageing behaviour is given, along with the bandwidth of material characteristics for a prolonged lifetime of this material class.
Research limitations/implications
For research and development in the field of rapid prototyping (RP) materials data about ageing behaviour and environmental effects are crucial. The authors show possible methods for measuring these effects and discuss the consequences in material research using a recently developed biocompatible SL resin as an example.
Practical implications
The study of the ageing behaviour of polymers is important for understanding their usability, storage, lifetime and recycling. The presented polymeric formulations are able to meet the growing demand for both soft and stiff manufacturing resin materials in the engineering and medical fields.
Originality/value
The analysis of the ageing behaviour of polymer materials is an important issue for engineering applications, recycling of post‐consumer plastic waste, as well as the use of polymers as biological implants and matrices for drug delivery and the lifetime of an article. The paper gives an overview of details involving ageing behaviour and their meaning for applications of acrylate‐based SL resins and is therefore of high importance to people with interest in long‐term behaviour and ageing of RP materials.
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Accountants and the accounting profession have always been users of information technology and the claim for enlarging levels of Information Technology/Information Systems (IT/IS…
Abstract
Accountants and the accounting profession have always been users of information technology and the claim for enlarging levels of Information Technology/Information Systems (IT/IS) skills/knowledge in practitioners and accounting graduates is more powerful than ever. The use of Information Technology in support of business is widespread and becoming more so. Indeed, it is no longer possible to meet the expectations of users of financial and other business performance information without using Information Technology tools. Both academics and practitioners have recognised the value and importance of IT/IS in the achievement of success in the competitive business world and IT/IS skills/knowledge as being essential to longterm success for accountants. The challenges facing organisations now require the skills of a special kind of accountant, this research called the “Hybrid Accountant” (combining IT/IS competencies and mainstream accounting capabilities). A “hybrid” accountant blends different skills and knowledge of business management and information management. It is generally felt that today’s accounting education process fails to develop accountants who are able to serve in this type of demanding accountant.
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Using visual materials to understand a social object requires the researcher to know that object's purpose, and this is true whether the object is an artifact, a restricted event…
Abstract
Using visual materials to understand a social object requires the researcher to know that object's purpose, and this is true whether the object is an artifact, a restricted event, a small social world, or something as massive as the modern city. I argue that the purpose of the city as a settlement is driven by the need to safely sleep in peace at night while satisfying other basic biophysical needs during the day as conveniently as possible. An examination of these needs identifies 10 functional prerequisites for human settlement, entangling its inhabitants in involuntary community with entities and events other than themselves, whether they like it or not. In addition, the rise of the modern city exacerbates the challenge of living in a reluctant community and pressures its inhabitants to come to terms with the consequences for how these relationships affect daily life. I highlight nine challenges posed as questions that have been particularly salient in American urban history since the mid-nineteenth century. How these challenges have been addressed indicates not only what it takes to make a modern city a settlement suitable for satisfying human needs, but also just how deeply invested its residents are in making the city work. Finally, the 10 functional prerequisites and nine moral challenges not only provide a framework for researching the city, but also suggest a coherent outline for imagining a “shooting script” or guide for conducting visual research.
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When, eleven years ago, I retired from the service of the Trustees of the British Museum, I was honoured by two or three invitations to write my memoirs. I declined, on two…
Abstract
When, eleven years ago, I retired from the service of the Trustees of the British Museum, I was honoured by two or three invitations to write my memoirs. I declined, on two grounds: that I had been born in neither of the purples, the princely or the proletariate; and (for at that time young people in their early twenties were publishing their autobiographies) that I did not think I was young enough.
Ashly Pinnington, Hazem Aldabbas, Fatemeh Mirshahi and Tracy Pirie
This study aims to investigate the relationship between different organisational development programmes (360-degree feedback; Coaching; Job assignment; Employee assistance…
Abstract
Purpose
This study aims to investigate the relationship between different organisational development programmes (360-degree feedback; Coaching; Job assignment; Employee assistance programmes; On-the-job training; Web-based career information; Continuous professional development; External education provision) and employees’ career development. The implications of the moderating effects of gender on the relationships between these eight organisational programmes and career development are assessed.
Design/methodology/approach
To examine hypothesised relationships on eight organisational programmes and career development, this paper computed moderated regression analyses using the PROCESS macro (3.5), for a two-way analysis of variance (Hayes, 2018). The data collected are based on a survey sample of employees (n = 322) working in Scotland.
Findings
Two main findings arose from this empirical study. First, there are significant direct relationships between seven out of the eight organisational development programmes and their influences on employees’ career development. Second, gender is a significant moderator for four of the programmes’ relationship with career development, namely, coaching, web-based career information, continuous professional development and external education provision. However, gender failed to moderate the four other programmes’ (i.e. 360-degree feedback, job assignment, employee assistance programmes and on-the-job training) relationship with career development.
Originality/value
This paper concludes that closer attention should be given to the organisational design of these development programmes and consideration of potential gender differences in employees’ perception of their importance for career development in their organisation. To date, the majority of research in the literature has concentrated on the impact of training on career development, so this study contributes to the body of knowledge on a set of organisational development programmes and their effect on career development moderated by gender.
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Mitch Beaumont, Ben Thuriaux-Alemán, Prashanth Prasad and Chandler Hatton
According to the authors research, Agile approaches are increasingly being deployed successfully alongside phase-gate processes in engineering and R&D functions outside software…
Abstract
Purpose
According to the authors research, Agile approaches are increasingly being deployed successfully alongside phase-gate processes in engineering and R&D functions outside software, with a very positive result.
Design/methodology/approach
An Agile approach to product development has been a mainstay of the software industry since the turn of the century. In recent years, some non-software product-based companies have successfully combined both Agile and non-Agile methods in a complementary way to pursue breakthrough innovation. The article reports on how to make this combination work.
Findings
The study found companies adopting two general approaches when trying to introduce Agile into an existing phase-gate process: integrating Agile into a single innovation process or adding a partly parallel Agile path.
Practical implications
As a measure of Agile’s potential, the software industry has consistently produced patents at three times the level of the next-most prolific sectors.
Originality/value
Arthur D. Little’s research reveals that companies that have successfully added Agile methods to their toolboxes and tailor their innovation approaches by the type of innovation – incremental or breakthrough–perform significantly better than those that stick to single phase-gate approach.
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Critics maintain that for profit, business corporations should be more “responsible,” that they should take account of all constituencies affected by their operations and should…
Abstract
Critics maintain that for profit, business corporations should be more “responsible,” that they should take account of all constituencies affected by their operations and should even assume responsibility for broader societal problems which they may only impact tangentially. Defenders of a narrower set corporate goals and constituent interests argue that corporations should be concerned exclusively with maximizing the profits they can earn for shareholders within the law. This controversy regarding corporate goals and stakeholder interests has spanned most of the twentieth century.
There are signs that leisure is becoming increasingly important in contemporary working lives. This paper seeks to contribute to the career literature by examining how work and…
Abstract
Purpose
There are signs that leisure is becoming increasingly important in contemporary working lives. This paper seeks to contribute to the career literature by examining how work and leisure can operate as allies.
Design/methodology/approach
Qualitative data from fieldwork engaging with hotel employees located within the tourist resort of Queenstown, New Zealand are used to explore the positive interdependencies between work and leisure for both the leisure‐orientated employee and the hotels.
Findings
The results suggest that skiing‐orientated employees are able to engage in skiing due to the money and time resources they receive from their hotel employment. At the same time, hotels have access to a seasonal, non‐standard work‐time and leisure competent labour pool as a result of the employees' orientation and participation in skiing.
Originality/value
The results support the existence of a leisure‐orientated career identity that conforms to the contemporary individualistic revision of career. In addition, the results emphasise the significant impact that the employment relationship, industry setting and geographic location have on the leisure‐work relationship.
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Daniel Schiffman and Eli Goldstein
The American agricultural economist Marion Clawson advised the Israeli government during 1953–1955. Clawson, a protégé of John D. Black and Mordecai Ezekiel, criticized the…
Abstract
The American agricultural economist Marion Clawson advised the Israeli government during 1953–1955. Clawson, a protégé of John D. Black and Mordecai Ezekiel, criticized the government for ignoring economic considerations, and stated that Israel’s national goals – defense, Negev Desert irrigation, immigrant absorption via new agricultural settlements, and economic independence – were mutually contradictory. His major recommendations were to improve the realism of Israel’s agricultural plan; end expensive Negev irrigation; enlarge irrigated farms eightfold; freeze new settlements until the number of semi-developed settlements falls from 300 to 100; and limit new Negev settlements to 10 over 5–7 years. Thus, Clawson ignored political feasibility and made value judgments. Minister of Finance Levi Eshkol and Minister of Agriculture Peretz Naphtali rejected Clawson’s recommendations because they ignored Israel’s national goals. By September 1954, Clawson shifted towards greater pragmatism: He acknowledged that foreign advisors should not question the national goals or make value judgments, and sought common ground with the Ministry of Agriculture. At his initiative, he wrote Israel Agriculture 1953/54 in collaboration with the Ministry of Agriculture. Israel Agriculture was a consensus document: Clawson eschewed recommendations and accepted that the government might prioritize non-economic goals. In proposing Israel Agriculture, Clawson made a pragmatic decision to relinquish some independence for (potentially) greater influence. Ultimately, Clawson was largely unsuccessful as an advisor. Clawson’s failure was part of a general pattern: Over 1950–1985, the Israeli government always rejected foreign advisors’ recommendations unless it was facing a severe crisis.