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1 – 10 of 160
Article
Publication date: 1 January 2004

Deborah L. Kidder, Melenie J. Lankau, Donna Chrobot‐Mason, Kelly A. Mollica and Raymond A. Friedman

This study used a scenario design to examine whether there are different reactions among whites based on how a diversity program is justified by an organization. A reactive…

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Abstract

This study used a scenario design to examine whether there are different reactions among whites based on how a diversity program is justified by an organization. A reactive justification (affirmative action) was proposed to result in greater backlash than a competitive advantage justification (diversity management). In addition, this study examined the effects of personal and group outcomes on backlash and explored two individual difference variables, gender and orientation toward other ethnic groups, as potential moderators of the proposed relationships. Backlash was operationalized in four ways: an affect‐based measure (negative emotions), two cognitive‐based measures (attitude toward the diversity program, perceptions of unfairness of promotion procedures), and a behavioral‐intentions‐based measure (organizational commitment). Results indicated that the diversity management justification was associated with more favorable support of the diversity initiative, and that unfavorable personal and group outcomes adversely affected backlash reactions. There was no empirical support for the influence of the moderator variables on the proposed relationships, however, a main effect for gender was found. Implications of the study's findings and future research directions are discussed.

Details

International Journal of Conflict Management, vol. 15 no. 1
Type: Research Article
ISSN: 1044-4068

Keywords

Article
Publication date: 1 January 1992

This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/eb007296. When citing the article, please…

Abstract

This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/eb007296. When citing the article, please cite: C. Wrubl, A. Mollica, U. Montini, A. Litigio, (1991), “Corrosion performance of cataphoretically painted specimens: A comparison between salt spray and continuous immersion tests”, Anti-Corrosion Methods and Materials, Vol. 38 Iss: 6, pp. 11 - 15.

Details

Pigment & Resin Technology, vol. 21 no. 1
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 October 2003

C. Wrubl, M. Fassin, A. Buffoli and A. Mollica

In the present work, the protective properties of inhibitive pigments in two epoxy‐primers against corrosion of the aluminium alloy 2024T3 in marine atmosphere were investigated…

Abstract

In the present work, the protective properties of inhibitive pigments in two epoxy‐primers against corrosion of the aluminium alloy 2024T3 in marine atmosphere were investigated, the first containing SrCrO4 and the second Zn3(PO4)2. Potentiostatic polarisation and impedance measurement methods were utilised to evaluate, both the spontaneous onset of defects on coated samples and the propagation of a small artificial defect of known dimension applied since the beginning of the test on each sample, during 24 months of exposure to the marine atmosphere. These techniques enabled a quantitative evaluation of the protective efficiency of the two primers to be made, and for the effects of the surface pre‐treatments of the metallic substrate to be investigated.

Details

Anti-Corrosion Methods and Materials, vol. 50 no. 5
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 1 June 1991

C. Wrubl, A. Mollica, U. Montini and A. Litigio

The salt‐spray test is still today often utilized to control the anticorrosive performance of paints applied on metallic substrates. The time required for this test method is much…

Abstract

The salt‐spray test is still today often utilized to control the anticorrosive performance of paints applied on metallic substrates. The time required for this test method is much shorter than that necessary to carry out the atmospheric exposure test (some weeks instead of many years). Nevertheless the results provided by the salt spray test are only qualitative and their extrapolability to the real behaviour of the paint system's film‐metallic substrate is very difficult. Moreover, in some cases there is a discrepancy between the results of the salt spray test and the reality; for instance, it was observed some time ago that hot‐dip galvanized steel constitutes a better substrate for paints than bare steel, whereas the salt spray test results indicate the contrary. The present work represents only a part of a more conspicuous set of observations devoted to a comparison of laboratory and field results. In this first stage we examined, by means of salt spray and total immersion tests, the behaviour of bare steel and hot‐dip galvanized steel substrates, both phosphatized and coated by the same paint. The aim of this work was to ascertain if the results of the two methods are in accordance and, moreover, to compare the qualitative information given by the salt spray tests with those, quantitative, obtained by the electrode impedance technique on specimens immersed in 3% NaCl solution. By means of this technique it is possible to determine at the same time the values of the paint film resistance, of its capacitance, of the polarisation resistance and of the double layer pseudocapacitance related to the corrosion taking place on the metallic substrate and to ascertain the eventual intervention of diffusive phenomena into the corrosive process. Finally, this electrochemical method, because its non‐destructive nature, permits one to observe the variation of the values of overmentioned parameters as a function of time and therefore to interpret the evolution of the corrosion process.

Details

Anti-Corrosion Methods and Materials, vol. 38 no. 6
Type: Research Article
ISSN: 0003-5599

Book part
Publication date: 18 April 2012

Susan C. Schneider, Patricia Garcia-Prieto Chevalier and Veronique Tran

Although there is growing acknowledgment of the business case for diversity, efforts to recognize diversity as a strategic issue and to implement diversity initiatives have often…

Abstract

Although there is growing acknowledgment of the business case for diversity, efforts to recognize diversity as a strategic issue and to implement diversity initiatives have often been thwarted. We note that diversity is a “hot” issue not only because of the increasing attention being paid by both academics and practitioners, but also because of its potential to evoke strong emotions. We argue that “diversity” makes salient different identities (organizational, group, and individual) leading to different interpretations that can evoke specific emotional and behavioral reactions. This may help to explain whether top management teams identify and invest in diversity as a strategic issue, and whether diversity initiatives are supported or resisted by different groups and individuals throughout the organization. Thus it is important for global leaders to understand the role of identities in how diversity as a strategic issue may be interpreted and responded to by key decision-makers as well as those concerned with the implementation of diversity initiatives.

Details

Advances in Global Leadership
Type: Book
ISBN: 978-1-78052-002-5

Article
Publication date: 17 May 2022

Lorenzo Malagutti, Valentina Mazzanti and Francesco Mollica

The architecture of 3D-printed parts made through fused deposition modelling (FDM) with raster infill resembles that of composite laminates. Classical lamination theory (CLT), the…

Abstract

Purpose

The architecture of 3D-printed parts made through fused deposition modelling (FDM) with raster infill resembles that of composite laminates. Classical lamination theory (CLT), the simplest model for composite laminates, has been proved successful for describing the stiffness properties of FDM parts, while strength modeling so far has been limited to unidirectional lay-ups. The aim of this paper is to show that CLT can be used to predict also FDM part failure.

Design/methodology/approach

Wood flour-filled polyester has been chosen as a model material. Unidirectional specimens oriented at 0°, 90° and ± 45° have been first characterized in simple tension to obtain the properties of the single layer. Next, two quasi-isotropic lay-ups, possessing different layer sequences, have been tested again in simple tension for CLT validation.

Findings

The measured properties are in good agreement with theoretical predictions, both for stiffness and strength, and an even better agreement can be achieved if a correction for taking the contour lines into account is implemented.

Originality/value

The paper shows that also the tensile strength of FDM parts can be predicted by using a mathematical model based on CLT. This opens up the possibility of using CLT for studying optimization of raster filled lay-ups, for example in terms of the best raster angles sequence, to better resist applied external loads.

Details

Rapid Prototyping Journal, vol. 28 no. 9
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 14 March 2022

José Luis Dávila, Bruna Maria Manzini, Marcos Akira d'Ávila and Jorge Vicente Lopes da Silva

This study aims to report the development of an open-source syringe extrusion head for shear-thinning materials. The target is to adapt open-source 3D printers to be helpful in…

451

Abstract

Purpose

This study aims to report the development of an open-source syringe extrusion head for shear-thinning materials. The target is to adapt open-source 3D printers to be helpful in research lines that use gels, hydrogels, pastes, inks, and bio-inks.

Design/methodology/approach

This hardware was designed to be compatible with a Graber i3-based 3D printer; nevertheless, it can be easily adapted to other open-source 3D printers.

Findings

The extrusion head successfully deposits the material during the 3D printing process. It was validated fabricating geometries that include scaffold structures, which are a possible application of bioprinting for tissue engineering. As reported, the extruded filaments allowed the porous samples' structuration.

Practical implications

This system expands the applications of open-source 3D printers used at the laboratory scale. It enables low-cost access to research areas such as tissue engineering and biofabrication, energy storage devices and food 3D printing.

Originality/value

The open-source hardware here reported is of simple fabrication, assembly and installation. It uses a Cardan coupling and a three guides system to transfer the stepper motor motion. This approach allows continuous movement transfer to the syringe piston, producing an adequate deposition or retraction. Thus, the effect of misalignments is avoided, considering that these latter can cause skipping steps in the motor, directly affecting the deposition.

Details

Rapid Prototyping Journal, vol. 28 no. 8
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 11 October 2018

Reena Sachan and Ajay Kumar Singh

The purpose of this study is to investigate microbial influenced corrosion of steel because of iron oxidizing bacteria (IOB).

Abstract

Purpose

The purpose of this study is to investigate microbial influenced corrosion of steel because of iron oxidizing bacteria (IOB).

Design/methodology/approach

Carbon steel was selected for this study. Winogradsky media was used for isolation of IOB and as test solution for corrosion measurements. Electrochemical tests and immersion test were conducted to estimate the corrosion rate and extent of pitting. The corroded surface was analysed by SEM and corrosion products formed over the metal surface were identified by XRD and Fourier transformed infrared. Biofilm formed over the corroded metal was analysed by UV-visible spectroscopy for its extracellular polymeric substances (EPS) constituents.

Findings

Presence of IOB in Winogradsky medium enhances corrosion. Uniform and localized corrosion increases with increased bacterial concentration and EPS constituents of the biofilm. Iron sulphite formation as one of the corrosion products has been suggested to be responsible for increased corrosion attack in the inoculated media in comparison to control media where corrosion product observed is iron hydrogen phosphate which is protective in nature.

Originality/value

This work correlates increased corrosion of steel in the presence of bacteria with the nature of corrosion products formed over it in case of IOB. Formation of corrosion products is governed by various electrochemical reactions; hence, inhibition of such reactions may lead to reduce or stop the formation of such products which enhances corrosion and thereby may reduce the extent of microbial induced corrosion.

Details

Anti-Corrosion Methods and Materials, vol. 66 no. 1
Type: Research Article
ISSN: 0003-5599

Keywords

Book part
Publication date: 4 October 2018

Korbkul Jantarakolica and Tatre Jantarakolica

The rapid change of technology has significantly affected the financial markets in Thailand. In order to enhance the market efficiency and liquidity, the Stock Exchange of…

Abstract

The rapid change of technology has significantly affected the financial markets in Thailand. In order to enhance the market efficiency and liquidity, the Stock Exchange of Thailand (SET) has granted Thai stock brokers permission to develop and offer their customers algorithm and automatic stock trading. However, algorithm trading on SET was not widely adopted. This chapter intends to design and empirically estimate a model in explaining Thai investors’ acceptance of algorithm trading. The theoretical framework is based on the theory of reasoned action and technology acceptance model (TAM). A sample of 400 investors who have used online stock trading and 300 investors who have used algorithm stock trading were observed and analyzed using structural equations model (SEM) and generalized linear regression model (GLM) with a Logit specification. The results confirm that attitudes, subjective norm, perceived risks, and trust toward algorithm stock trading are factors determining investors’ behavior and acceptance of using algorithm stock trading. Investor’s perception and trust on algorithm stock trading as a trading strategy is a major factor in determining their perceived behavior and control, which affect their decision on whether to invest using algorithm trading. Accordingly, it can be concluded that Thai investors is willing to accept algorithm trading as a new financial technology, but still has concern about the reliability and profitable of this new stock trading strategy. Therefore, algorithm trading can be promoted by building investors’ trust on algorithm trading as a reliable and profitable trading strategy.

Details

Banking and Finance Issues in Emerging Markets
Type: Book
ISBN: 978-1-78756-453-4

Keywords

Article
Publication date: 20 March 2015

Amy Klemm Verbos, Deanna M. Kennedy, Joseph S. Gladstone and Carolyn Birmingham

The purpose of this paper is to develop two new constructs (career self-schemas and career locus) and present a conceptual model of the influence of Native American culture on MBA…

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Abstract

Purpose

The purpose of this paper is to develop two new constructs (career self-schemas and career locus) and present a conceptual model of the influence of Native American culture on MBA fit.

Design/methodology/approach

Using a social cognitive lens on career theory, the authors examine the possible effects of cultural influences on the fit between Native Americans’ career goals and an MBA. Specifically, the authors propose that cultural factors contribute to career self-schemas inconsistent with Native American perceptions of business graduate education. Career self-schemas are an individual’s cognitive map of the self in his or her career.

Findings

The conceptual model proposes that aspects of career self-schemas may explain lagging Native Americans’ MBA fit: the MBA is culturally inconsistent, and a community career locus.

Research limitations/implications

The model needs to be tested empirically. This research has implications that extend beyond Native Americans to help explain the career aspirations of other diverse groups.

Social implications

Native Americans are, in recent years, engaging in economic development that would benefit from Native Americans with MBAs. The authors make recommendations for increasing Native American interest in MBA programs.

Originality/value

This paper introduces the constructs of career self-schemas and career locus to explain lagging MBA fit for Native Americans. The constructs may also be applied in other cultures and with other ethnic groups to explain differences in career choice. It may be particularly helpful in an international context.

Details

Equality, Diversity and Inclusion: An International Journal, vol. 34 no. 3
Type: Research Article
ISSN: 2040-7149

Keywords

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