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1 – 10 of 24Suvranshu Pattanayak, Susanta Kumar Sahoo, Ananda Kumar Sahoo, Raviteja Vinjamuri and Pushpendra Kumar Dwivedi
This study aims to demonstrate a modified wire arc additive manufacturing (AM) named non-transferring arc and wire AM (NTA-WAM). Here, the build plate has no electrical arc…
Abstract
Purpose
This study aims to demonstrate a modified wire arc additive manufacturing (AM) named non-transferring arc and wire AM (NTA-WAM). Here, the build plate has no electrical arc attachment, and the system’s arc is ignited between tungsten electrode and filler wire.
Design/methodology/approach
The effect of various deposition conditions (welding voltage, travel speed and wire feed speed [WFS]) on bead characteristics is studied through response surface methodology (RSM). Under optimum deposition condition, a single-bead and thin-layered part is fabricated and subjected to microstructural, tensile testing and X-ray diffraction study. Moreover, bulk texture analysis has been carried out to illustrate the effect of thermal cycles and tensile-induced deformations on fibre texture evolutions.
Findings
RSM illustrates WFS as a crucial deposition parameter that suitably monitors bead width, height, penetration depth, dilution, contact angle and microhardness. The ferritic (acicular and polygonal) and lath bainitic microstructure is transformed into ferrite and pearlitic micrographs with increasing deposition layers. It is attributed to a reduced cooling rate with increased depositions. Mechanical testing exhibits high tensile strength and ductility, which is primarily due to compressive residual stress and lattice strain development. In deposits, ϒ-fibre evolution is more resilient due to the continuous recrystallisation process after each successive deposition. Tensile-induced deformation mostly favours ζ and ε-fibre development due to high strain accumulations.
Originality/value
This modified electrode arrangement in NTA-WAM suitably reduces spatter and bead height deviation. Low penetration depth and dilution denote a reduction in heat input that enhances the cooling rate.
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Enrique Izquierdo-Cervera and Francisco Sogorb-Mira
The purpose of this study is to analyse the impact of the European Central Bank’s (ECB) Public Sector Purchase Programme (PSPP) on Spanish sovereign debt.
Abstract
Purpose
The purpose of this study is to analyse the impact of the European Central Bank’s (ECB) Public Sector Purchase Programme (PSPP) on Spanish sovereign debt.
Design/methodology/approach
The authors assess the impact of the PSPP on Spanish Government bonds from two different transmission channels (the signalling and the portfolio substitution) with two effects for each of them (the announcement and the expectation effects for the former and the stock and the rebalancing effects for the latter). The empirical study has been undertaken with event study methodology, controlled by macroeconomic variables, panel data and cross-sectional regression analyses.
Findings
The results show that both the ECB’s purchases under the PSPP and the announcements reduced Spanish Government bond yields. Compared to previous literature the Spanish Government bond yields reductions are larger than those for other countries.
Research limitations/implications
The authors’ approach to the impact of investors’ expectations is interesting, although they cannot draw evidence on this issue due to the lack of data.
Practical implications
From an economic perspective, the ECB can change economic agents’ expectations without actually carrying out any programme, only by announcing such a programme.
Originality/value
This paper contributes to the literature examining the PSPP from different transmission channels in Spain, taking into account the announcements, the expectations, the purchases and the variation in debt holdings relating to the PSPP from the beginning of the programme until 2020. Due to the large degree of heterogeneity across euro area countries, the results in this paper should improve our understanding of the relative differences in the impact of the PSPP and, thus, be of interest to academics and policymakers.
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Meba Tadesse Delle, Ethiopia Legesse Segaro and Lucia Naldi
This study aims to investigate the individual factors that directly and indirectly favor (or hinder) employees’ attitudes toward women in management. Two sides of psychological…
Abstract
Purpose
This study aims to investigate the individual factors that directly and indirectly favor (or hinder) employees’ attitudes toward women in management. Two sides of psychological ownership (PO), promotion-focused and prevention-focused PO, are studied as having a direct effect on employees’ attitudes toward women in management. Past and future temporal focuses are examined as possible antecedents to the sides of PO, and as indirectly affecting employees’ attitudes toward women in management.
Design/methodology/approach
Survey questionnaires were collected from 230 MBA and related program students who were currently working and enrolled in one of six different universities in Ethiopia. Confirmatory factor analysis was applied to validate all measurement scales, and structural equation modeling was used to test the study hypotheses using Mplus software.
Findings
Employees with promotion-focused PO and employees with prevention-focused PO had a favorable and unfavorable attitude, respectively, toward women in management. In addition, a future temporal focus had a significant positive effect on promotion-focused PO, and a past temporal focus had a significant positive effect on prevention-focused PO. Overall, this mediation model showed that promotion-focused PO partially mediates the relationship between future temporal focus and attitudes toward equal opportunity for women managers, whereas prevention-focused PO fully mediates the negative relationship between past temporal focus and attitudes toward women in management.
Practical implications
This study provides new insight for organizations by showing how employees’ temporal focus explains their side of PO and how that affects their reaction toward women in management.
Originality/value
A new mechanism for revealing gender inequality in organizations is introduced. Moreover, the relationship between temporal focus and PO is discovered. This study is novel in providing an understanding of the antecedent to and effect of prevention-focused PO, which are largely overlooked in extant research.
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Jakov Jandrić, Rick Delbridge and Paolo Quattrone
The increasing push towards centralisation and bureaucratisation in higher education, further exacerbated by the disruption caused by the COVID-19 pandemic, calls for a better…
Abstract
The increasing push towards centralisation and bureaucratisation in higher education, further exacerbated by the disruption caused by the COVID-19 pandemic, calls for a better understanding of the nature of collegiality in contemporary universities. We address this issue by looking into the necessary conditions and barriers to sustaining a collegiate environment. The empirical focus is on academics, academic leaders and professional support staff at Anonymous Business School (ABS), a department in a large civic UK university. We interviewed 32 participants across the school, ranging from early-career academics to experienced professors and members of department leadership teams. The findings suggest multiple emerging perspectives on collegiality, with features of horizontal collegiality perceived as key to successful academic responses to the crisis. The findings also indicate how sustaining a collegiate environment within the department requires both choice and effort from leadership and from staff, particularly when decision-making is primarily located at the centre of the university. The choice and effort made across different collegiate pockets contribute to the department becoming an ‘island of collegiality’ within the increasingly centralised and bureaucratised university hierarchy. In this sense, the actions of the department leadership to establish supporting mechanisms, and the actions of the staff to, in turn, embrace and build interpersonal relationships and professional identities, are key to sustaining a collegiate environment.
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UNITED ARAB EMIRATES: Investment flows are threatened
Details
DOI: 10.1108/OXAN-ES281816
ISSN: 2633-304X
Keywords
Geographic
Topical
UNITED ARAB EMIRATES: FATF compliance will improve
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DOI: 10.1108/OXAN-ES280911
ISSN: 2633-304X
Keywords
Geographic
Topical
UNITED ARAB EMIRATES: New regulations will help image
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DOI: 10.1108/OXAN-ES279651
ISSN: 2633-304X
Keywords
Geographic
Topical
Gamal Elsamanoudy, Naglaa Sami Abdelaziz Mahmoud and Platon Alexiou
This paper argues that cultures with the same climate have similar handicrafts as they have similar cultivation and identical raw materials. This study focuses on how mountainous…
Abstract
Purpose
This paper argues that cultures with the same climate have similar handicrafts as they have similar cultivation and identical raw materials. This study focuses on how mountainous, coastal and hot regions partaking in similar crafts and cultural heritage use palm leaves and analyses the resulting handicrafts' similarities.
Design/methodology/approach
A review of mapping these samples establishes this similarity in the traditional industries of some civilizations' cultural heritage from countries sharing similar climates.
Findings
The handwoven crafts using palm leaves were significant patrimonial artifacts in different societies' and communities' cultural heritage. Our studies revealed that climate plays an active role in influencing all aspects of humanity’s life. It affects the construction methods and style, agriculture and lifestyles.
Research limitations/implications
Traditional handwoven palm leaf product models, especially plates and baskets, are studied from South America, Africa, Gulf Countries and Asia.
Practical implications
Additionally, this paper focuses on preserving these treasures as an essential part of interior elements as accessories for most inhabitants of these areas.
Social implications
Cultural heritage also embraces intangible aspects such as skills passed down through generations within a particular society. The tangible and intangible elements complement each other and contribute to an overall legacy.
Originality/value
Cultural heritage reflects a society’s way of life carried down through the years across lands, items, customs and aesthetic concepts. People are the gatekeepers of society, as they preserve their way of life for future generations to emulate. Tangible artistic and cultural heritage comprises artifacts. It comprises all human evidence and expressions, such as traditional handicrafts, pictures, documents, books and manuscripts.
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Rachael Hains-Wesson and Kaiying Ji
In this study, the authors explore students' and industry’s perceptions about the challenges and opportunities of participating in a large-scale, non-compulsory, individual…
Abstract
Purpose
In this study, the authors explore students' and industry’s perceptions about the challenges and opportunities of participating in a large-scale, non-compulsory, individual, in-person and unpaid business placement programme at an Australian university. The placement programme aims to support students' workplace transition by emphasising the development of key employability skills through reflective learning and linking theory to practice.
Design/methodology/approach
Utilising a case study methodology and integrating survey questionnaires, the authors collected both quantitative and qualitative data with large sample sizes.
Findings
The results highlight curriculum areas for improvement, emphasising tailored feedback to manage placement expectations and addressing employability skill strengths and weaknesses.
Practical implications
Recommendations include co-partnering with students to develop short, tailored and hot tip videos along with online learning modules, including the presentation of evidence-based statistics to inform students about post-programme employment prospects.
Originality/value
The study contributes to benchmarking good practices in non-compulsory, individual, in-person and unpaid placement pedagogy within the business education context.
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Chinedu Onyeme and Kapila Liyanage
This study investigates the integration of Industry 4.0 (I4.0) technologies with condition-based maintenance (CBM) in upstream oil and gas (O&G) operations, focussing on…
Abstract
Purpose
This study investigates the integration of Industry 4.0 (I4.0) technologies with condition-based maintenance (CBM) in upstream oil and gas (O&G) operations, focussing on developing countries like Nigeria. The research identifies barriers to this integration and suggests solutions, intending to provide practical insights for improving operational efficiency in the O&G sector.
Design/methodology/approach
The study commenced with an exhaustive review of extant literature to identify existing barriers to I4.0 implementation and contextualise the study. Subsequent to this foundational step, primary data are gathered through the administration of carefully constructed questionnaires targeted at professionals specialised in maintenance within the upstream O&G sector. A semi-structured interview was also conducted to elicit more nuanced, contextual insights from these professionals. Analytically, the collected data were subjected to descriptive statistical methods for summarisation and interpretation with a measurement model to define the relationships between observed variables and latent construct. Moreover, the Relative Importance Index was utilised to systematically prioritise and rank the key barriers to I4.0 integration to CBM within the upstream O&G upstream sector.
Findings
The most ranked obstacles in integrating I4.0 technologies to the CBM strategy in the O&G industry are lack of budget and finance, limited engineering and technological resources, lack of support from executives and leaders of the organisations and lack of competence. Even though the journey of digitalisation has commenced in the O&G industry, there are limited studies in this area.
Originality/value
The study serves as both an academic cornerstone and a practical guide for the operational integration of I4.0 technologies within Nigeria's O&G upstream sector. Specifically, it provides an exhaustive analysis of the obstacles impeding effective incorporation into CBM practices. Additionally, the study contributes actionable insights for industry stakeholders to enhance overall performance and achieve key performance indices (KPIs).
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