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Article
Publication date: 6 August 2019

Javier Navarro, Matthew Din, Morgan Elizabeth Janes, Jay Swayambunathan, John P. Fisher and Maureen L. Dreher

This paper aims to study the effects of part orientation during the 3D printing process, particularly to the case of using continuous digital light processing (cDLP) technology.

Abstract

Purpose

This paper aims to study the effects of part orientation during the 3D printing process, particularly to the case of using continuous digital light processing (cDLP) technology.

Design/methodology/approach

The effects of print orientation on the print accuracy of microstructural features were assessed using microCT imaging and mechanical properties of cDLP microporous scaffolds were characterized under simple compression and complex biaxial loading. Resin viscosity was also quantified to incorporate this factor in the printing discussion.

Findings

The combined effect of print resin viscosity and the orientation and spacing of pores within the structure alters how uncrosslinked resin flows within the construct during cDLP printing. Microstructural features in horizontally printed structures exhibited greater agreement to the design dimensions than vertically printed constructs. While cDLP technologies have the potential to produce mechanically isotropic solid constructs because of bond homogeneity, the effect of print orientation on microstructural feature sizes can result in structurally anisotropic porous constructs.

Originality/value

This work is useful to elucidate on the specific capabilities of 3D printing cDLP technology. The orientation of the part can be used to optimize the printing process, directly altering parameters such as the supporting structures required, print time, layering, shrinkage or surface roughness. This study further detailed the effects on the mechanical properties and the print accuracy of the printed scaffolds.

Details

Rapid Prototyping Journal, vol. 25 no. 6
Type: Research Article
ISSN: 1355-2546

Keywords

Book part
Publication date: 11 February 2003

Abstract

Details

Research in Organizational Change and Development
Type: Book
ISBN: 978-1-84950-195-8

Book part
Publication date: 30 September 2016

Carlo Cristiano

Marshall, Pigou, and Keynes on one side of the Atlantic, and Fisher on the other, had different approaches to the quantity theory of money. But they shared its basic framework…

Abstract

Marshall, Pigou, and Keynes on one side of the Atlantic, and Fisher on the other, had different approaches to the quantity theory of money. But they shared its basic framework, with the result that theoretical discussions did not prevent some degree of mutual support on policy proposals. If a divergence there was, at this stage, this pertained the feasibility of Fisher’s proposals, because Fisher’s enthusiasm for reform could find no match at Cambridge. This notwithstanding, and although in varying degrees, Marshall, Pigou, and Keynes were sympathetic with Fisher’s battle for “stable money.” Indeed, a fragment from the Keynes Papers shows that, at a very early stage of his career, Keynes paid great attention to Fisher’s empirical research on the relationship between “Appreciation and interest,” taking the relation between nominal and real rates of interest as a possible explanation of the trade cycle. For some time at least, this widened the common ground upon which Fisher’s proposals for “stable money” could find some support at Cambridge.

Details

Research in the History of Economic Thought and Methodology
Type: Book
ISBN: 978-1-78560-962-6

Keywords

Book part
Publication date: 16 December 2017

Masazumi Wakatabe

This chapter investigates the nature of the transformation of macroeconomics by focusing on the impact of the Great Depression on economic doctrines. There is no doubt that the…

Abstract

This chapter investigates the nature of the transformation of macroeconomics by focusing on the impact of the Great Depression on economic doctrines. There is no doubt that the Great Depression exerted an enormous influence on economic thought, but the exact nature of its impact should be examined more carefully. In this chapter, I examine the transformation from a perspective which emphasizes the interaction between economic ideas and economic events, and the interaction between theory and policy rather than the development of economic theory. More specifically, I examine the evolution of what became known as macroeconomics after the Depression in terms of an ongoing debate among the “stabilizers” and their critics. I further suggest using four perspectives, or schools of thought, as measures to locate the evolution and transformation; the gold standard mentality, liquidationism, the Treasury view, and the real-bills doctrine. By highlighting these four economic ideas, I argue that what happened during the Great Depression was the retreat of the gold standard mentality, the complete demise of liquidationism and the Treasury view, and the strange survival of the real-bills doctrine. Each of those transformations happened not in response to internal debates in the discipline, but in response to government policies and real-world events.

Details

Including a Symposium on New Directions in Sraffa Scholarship
Type: Book
ISBN: 978-1-78714-539-9

Keywords

Article
Publication date: 1 February 1983

STEPHEN S. SMITH

The past two decades of economic activity in the U.S. have been characterized by both high inflation and interest rates in comparison to previous periods of stability. The…

Abstract

The past two decades of economic activity in the U.S. have been characterized by both high inflation and interest rates in comparison to previous periods of stability. The importance of these two variables to our economic welfare and to the effectiveness of economic policy have led to renewed interest in the Fisher Effect. This is the hypothesis put forth by Irving Fisher describing the relationship between these two variables. It usually takes the form R = re + pe + repe (1) in which R is the nominal rate of interest, re is the expected real rate of interest, and pe is the expected rate of change of prices. The term repe is usually considered insignificant and is dropped, giving R = re + pe. (2) Although this equation can be readily quantified on an ex post basis using actual rather than expected values, the fact that expectation of r and p are not directly observable have always made it difficult to derive an ex ante measure of the real rate.

Details

Studies in Economics and Finance, vol. 7 no. 2
Type: Research Article
ISSN: 1086-7376

Book part
Publication date: 29 August 2018

Paul A. Pautler

The Bureau of Economics in the Federal Trade Commission has a three-part role in the Agency and the strength of its functions changed over time depending on the preferences and…

Abstract

The Bureau of Economics in the Federal Trade Commission has a three-part role in the Agency and the strength of its functions changed over time depending on the preferences and ideology of the FTC’s leaders, developments in the field of economics, and the tenor of the times. The over-riding current role is to provide well considered, unbiased economic advice regarding antitrust and consumer protection law enforcement cases to the legal staff and the Commission. The second role, which long ago was primary, is to provide reports on investigations of various industries to the public and public officials. This role was more recently called research or “policy R&D”. A third role is to advocate for competition and markets both domestically and internationally. As a practical matter, the provision of economic advice to the FTC and to the legal staff has required that the economists wear “two hats,” helping the legal staff investigate cases and provide evidence to support law enforcement cases while also providing advice to the legal bureaus and to the Commission on which cases to pursue (thus providing “a second set of eyes” to evaluate cases). There is sometimes a tension in those functions because building a case is not the same as evaluating a case. Economists and the Bureau of Economics have provided such services to the FTC for over 100 years proving that a sub-organization can survive while playing roles that sometimes conflict. Such a life is not, however, always easy or fun.

Details

Healthcare Antitrust, Settlements, and the Federal Trade Commission
Type: Book
ISBN: 978-1-78756-599-9

Keywords

Book part
Publication date: 19 February 2020

Samuel Demeulemeester

This chapter discusses the “seigniorage argument” in favor of public money issuance, according to which public finances could be improved if the state more fully exercised the…

Abstract

This chapter discusses the “seigniorage argument” in favor of public money issuance, according to which public finances could be improved if the state more fully exercised the privilege of money creation, which is, today, largely shared with private banks. This point was made in the 1930s by several proponents of the “100% money” reform scheme, such as Henry Simons of the University of Chicago, Lauchlin Currie of Harvard and Irving Fisher of Yale, who called for a full-reserve requirement in lawful money behind checking deposits. One of their claims was that, by returning all seigniorage profit to the state, such reform would allow a significant reduction of the national debt. In academic debates, however, following a criticism first made by Albert G. Hart of the University of Chicago in 1935, this argument has generally been discarded as wholly illusory. Hart argued that, because the state, under a 100% system, would be likely to pay the banks a subsidy for managing checking accounts, no substantial debt reduction could possibly be expected to follow. The 100% money proponents never answered Hart’s criticism, whose conclusion has often been considered as definitive in the literature. However, a detailed study of the subject reveals that Hart’s analysis itself appears to be questionable on at least two grounds: the first pertains to the sources of the seigniorage benefit, the other to its distribution. This chapter concludes that the “seigniorage argument” of the 100% money authors may not have been entirely unfounded.

Details

Research in the History of Economic Thought and Methodology: Including a Symposium on Public Finance in the History of Economic Thought
Type: Book
ISBN: 978-1-83867-699-5

Keywords

Article
Publication date: 7 June 2013

Micquel Little and Michelle Price

The purpose of this paper is to share St John Fisher College Library's marketing approach to recruiting and retention of parents within the higher education community.

970

Abstract

Purpose

The purpose of this paper is to share St John Fisher College Library's marketing approach to recruiting and retention of parents within the higher education community.

Design/methodology/approach

The objectives of this paper are achieved by connecting local experiences with other parent initiatives on university campuses throughout the country. The paper takes the approach of addressing marketing strategies for recruitment and retention of parents, while also including opportunities for these strategies to be applied.

Findings

The findings display the library's ability to contribute to their campus recruitment and retention goals while assisting parents in connecting to the library in an informational and emotional capacity.

Originality/value

This paper presents the academic library's perspective on a higher education initiative focused on targeting parents during the recruitment and retention processes. Academic librarians will find the most value in this paper by finding step‐by‐step guidelines for implementing the experiences shared by St John Fisher College's library.

Details

Reference Services Review, vol. 41 no. 2
Type: Research Article
ISSN: 0090-7324

Keywords

Book part
Publication date: 27 October 2016

Alexandra L. Ferrentino, Meghan L. Maliga, Richard A. Bernardi and Susan M. Bosco

This research provides accounting-ethics authors and administrators with a benchmark for accounting-ethics research. While Bernardi and Bean (2010) considered publications in…

Abstract

This research provides accounting-ethics authors and administrators with a benchmark for accounting-ethics research. While Bernardi and Bean (2010) considered publications in business-ethics and accounting’s top-40 journals this study considers research in eight accounting-ethics and public-interest journals, as well as, 34 business-ethics journals. We analyzed the contents of our 42 journals for the 25-year period between 1991 through 2015. This research documents the continued growth (Bernardi & Bean, 2007) of accounting-ethics research in both accounting-ethics and business-ethics journals. We provide data on the top-10 ethics authors in each doctoral year group, the top-50 ethics authors over the most recent 10, 20, and 25 years, and a distribution among ethics scholars for these periods. For the 25-year timeframe, our data indicate that only 665 (274) of the 5,125 accounting PhDs/DBAs (13.0% and 5.4% respectively) in Canada and the United States had authored or co-authored one (more than one) ethics article.

Details

Research on Professional Responsibility and Ethics in Accounting
Type: Book
ISBN: 978-1-78560-973-2

Keywords

Article
Publication date: 3 October 2016

Geoffrey Sherington

The purpose of this paper is to examine the impact of the War on two prominent academic liberal historians.

Abstract

Purpose

The purpose of this paper is to examine the impact of the War on two prominent academic liberal historians.

Design/methodology/approach

The research is based on a narrative of their lives and careers before and during the War.

Findings

The findings include an analysis of how the War engaged these academic liberals in the pursuit of the War effort.

Originality/value

By the end of the War, both sought to reaffirm much of their earlier academic liberalism despite the political and social changes in the post-war world.

Details

History of Education Review, vol. 45 no. 2
Type: Research Article
ISSN: 0819-8691

Keywords

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