Daniel de Bortoli, Fauzan Adziman, Eduardo A. de Souza Neto and Francisco M. Andrade Pires
The purpose of this work is to apply a recently proposed constitutive model for mechanically induced martensitic transformations to the prediction of transformation loci…
Abstract
Purpose
The purpose of this work is to apply a recently proposed constitutive model for mechanically induced martensitic transformations to the prediction of transformation loci. Additionally, this study aims to elucidate if a stress-assisted criterion can account for transformations in the so-called strain-induced regime.
Design/methodology/approach
The model is derived by generalising the stress-based criterion of Patel and Cohen (1953), relying on lattice information obtained using the Phenomenological Theory of Martensite Crystallography. Transformation multipliers (cf. plastic multipliers) are introduced, from which the martensite volume fraction evolution ensues. The associated transformation functions provide a variant selection mechanism. Austenite plasticity follows a classical single crystal formulation, to account for transformations in the strain-induced regime. The resulting model is incorporated into a fully implicit RVE-based computational homogenisation finite element code.
Findings
Results show good agreement with experimental data for a meta-stable austenitic stainless steel. In particular, the transformation locus is well reproduced, even in a material with considerable slip plasticity at the martensite onset, corroborating the hypothesis that an energy-based criterion can account for transformations in both stress-assisted and strain-induced regimes.
Originality/value
A recently developed constitutive model for mechanically induced martensitic transformations is further assessed and validated. Its formulation is fundamentally based on a physical metallurgical mechanism and derived in a thermodynamically consistent way, inheriting a consistent mechanical dissipation. This model draws on a reduced number of phenomenological elements and is a step towards the fully predictive modelling of materials that exhibit such phenomena.
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Emily Frawley and Larissa McLean Davies
The purpose of this paper is to explore the interface between high-stakes testing, disciplinary knowledge and teachers’ pedagogy in English. The most prevalent standardized…
Abstract
Purpose
The purpose of this paper is to explore the interface between high-stakes testing, disciplinary knowledge and teachers’ pedagogy in English. The most prevalent standardized assessment form in the current Australian context is the National Assessment Program for Literacy and Numeracy (NAPLAN) undertaken each year by students in Years 3, 5, 7 and 9 in all Australian States and Territories. Understood in the context of the Global Educational Reform Movement (GERM) (Sahlberg, 2011, pp. 100-101) – the NAPLAN tests serve as a bi-partisan governmental response to a perceived need to improve the quality of teachers and schools in Australia.
Design/methodology/approach
The authors draw on the key sociological constructs of Pierre Bourdieu (1995) to analyze the ways in which the writing component of the suite of NAPLAN tests serves to legitimize and idealize particular kinds of writing, writers and teachers of writing.
Findings
The authors suggest that in the absence of current literacy policy and curriculum instability, this national test shapes the literacy field, influencing the direction of writing practices and pedagogy, and, therefore, subject English itself, in Australian classrooms.
Originality/value
This assessment intervention is considered in the context of the history of writing, and addresses accordingly fundamental questions concerning the changing nature of the writing/writerly field, the impact of assessment on teachers’ conceptions of disciplinarity and pedagogical content knowledge and students’ experiences of writing and thinking in subject English.
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Jeovan de Carvalho Figueiredo, Luiz Carlos Di Serio, Jislaine de Fátima Guilhermino, Wladimir Augusto César de Morais and Vera Lucia Neto
Most research and development (R&D) activities in Brazil are performed by science and technology institutions (STIs). The purpose of this research was to determine whether…
Abstract
Purpose
Most research and development (R&D) activities in Brazil are performed by science and technology institutions (STIs). The purpose of this research was to determine whether environmentally sound technologies (ESTs) developed by these organizations were transferred to companies, either through cooperation during research or through mechanisms such as licensing agreements or spin-offs.
Design/methodology/approach
In total, 1,939 research groups and 702 patent registers, identified from the same set of words related to ESTs, using semantic search in open-access databases, covering a period from 2005 to 2014, were examined. The two data sets (patents and research groups) were overlaid, and it was possible to associate inventors’ names with researchers’ names.
Findings
The results showed that only six patents could be related to the 1,939 identified research groups. Of the six patents, only one was the object of a licensing agreement, and no spin-off was identified.
Practical implications
This study evidenced that it is necessary to expand the mechanisms of knowledge transfer, directed not only from STIs to companies but also in the opposite direction, given that companies recognize potential market opportunities.
Originality/value
This study shows that improvements in the Brazilian National Innovation System are necessary, as ESTs research groups demonstrated a weak association with technologies transferred to companies, with only one case of technology transfer in the form of a licensing agreement.
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Edward Rock Davis and Rachel Wilson
This paper aims to analyse contrasting discourses on education and competitiveness from four countries to show the different national values that are a key driver in economic…
Abstract
Purpose
This paper aims to analyse contrasting discourses on education and competitiveness from four countries to show the different national values that are a key driver in economic development.
Design/methodology/approach
The paper uses content analysis to compare and contrast the newspaper discourse surrounding the OECD Program for International Student Assessment (PISA) in four countries with above OECD average performance: Japan and South Korea (improving performance) and Australia and Finland (declining performance). PISA has attracted much government and public attention because it reflects education and the economic value of that education.
Findings
There are key contrasts in the discourses of the four countries. Despite shifts to globalised perspectives on education, strong national and cultural differences remain. Educational competitiveness and economic competitiveness are strong discourses in Japan and South Korea, while in Australia and Finland, the focus is on educational competitiveness. The media in Finland has few references to economic competitiveness and it does not feature in Australia. The discourse themes on PISA from 2001 to 2015 are presented with trends in educational attainment and shifting national perspectives on education.
Research limitations/implications
Analysis is limited to the top two circulation newspapers in English language in each country over 2001 to 2015. These newspapers in Finland, Japan and South Korea include translated content from local language papers.
Originality/value
The paper provides longitudinal perspectives to understand the contrasting societal values placed on education and how these relate to perspectives on competitiveness. This media evidence on national discourses can inform education policy orientations in the four countries examined.
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Engy ElHawary and Rasha Elbolok
This examine the impact of environmental, social and governance (ESG) performance on financial reporting quality (FRQ) before and during COVID-19 in the Egyptian market.
Abstract
Purpose
This examine the impact of environmental, social and governance (ESG) performance on financial reporting quality (FRQ) before and during COVID-19 in the Egyptian market.
Design/methodology/approach
This study uses quarterly data from 2017 to 2021 to draw conclusions, with a sample consisting of 486 firm-year observations for 27 Egyptian companies listed on the Standard and Poor’s/Egyptian Stock Exchange ESG index. This study uses both firms’ ESG scores and the Beneish Model, an earnings detection model, as proxies for FRQ. COVID-19 effects on ESG performance and FRQ were examined by using Pearson’s correlation coefficient and two-stage least squares.
Findings
COVID-19 has a significant impact on the link between ESG and FRQ. This implies that corporations with high ESG performance are less likely to manipulate earnings (having a low M-score) and thus provide high FRQ during the COVID-19 pandemic. Moreover, there is a significant positive relationship between firm size, leverage and M-Score, indicating that large firms typically present a high FRQ.
Research limitations/implications
The sample size and data availability are the main research limitations. Additionally, this study only considers the effects of firms’ ESG performance on FRQ during the COVID-19 pandemic. Thus, future research should consider other factors associated with investors’ corporate social responsibility (CSR).
Practical implications
This research has practical implications for market regulators seeking to establish a legislative framework and enhance guidance to mandate managers to provide ESG data and CSR reports appropriate for Egypt and other developing economies in times of crisis.
Social implications
Promoting the adoption of ESG practices in business, particularly during crises, has the potential to effectively provide high-quality and reliable financial reporting required for investment.
Originality/value
This study aspires to address notable deficiencies in the pertinent literature concerning the relationship between ESG performance and FRQ during COVID-19. To the best of the authors’ knowledge, little is known about how ESG performance changes in response to pandemics in emerging markets. To address this gap, this study examines the effects of COVID-19 on the relationship between ESG performance and FRQ in Egyptian-listed firms from 2017 to 2021.