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Open Access
Article
Publication date: 12 October 2021

AbdulLateef Olanrewaju, Jack Son Khor and Christopher Nigel Preece

Statistics show that the construction sector has the second-highest number of accident cases in Malaysia. A total of 100, 000 construction workers suffer from work-related bad…

4471

Abstract

Purpose

Statistics show that the construction sector has the second-highest number of accident cases in Malaysia. A total of 100, 000 construction workers suffer from work-related bad health each year. Scaffolding accidents are the second cause of accidents on construction sites. Therefore, this present research provided answers to the following questions: (1) what are the causes of scaffolding accidents and (2) what are the possible measures to reduce scaffolding accidents?

Design/methodology/approach

The research developed a questionnaire instrument that included 24 causes of scaffolding accidents and 21 remedial actions. The research was based on a cross-sectional survey questionnaire administered to 129 members of construction organizations.

Findings

Data revealed that scaffolding-related cases caused a total of 70% of the deaths/injuries on sites. Furthermore, scaffolding accidents were mainly caused by a lack of guard rails on scaffoldings, poor inspections, improper assembly, a poor safety culture, poor attitudes towards safety, poor footing of scaffoldings and unsecured planking. To reduce scaffolding accidents, there must be a lifeline on scaffolding, proper guardrails and proper assembling of scaffoldings, and preventing access to incomplete or defective scaffoldings. The 24 causes are structured into six factors through factor analysis and the 21 remedial actions into six factors.

Originality/value

This research serves as the first attempt to conduct broad research on the causes and remedial actions concerning scaffolding accidents on construction sites in Malaysia. Theoretically, the research has provided fresh insights into the impact of scaffolding accidents.

Details

Frontiers in Engineering and Built Environment, vol. 2 no. 1
Type: Research Article
ISSN: 2634-2499

Keywords

Open Access
Article
Publication date: 12 March 2018

Fengyuan Liu, Srichand Hinduja and Paulo Bártolo

This paper aims to describe the control software of a novel manufacturing system called plasma-assisted bio-extrusion system (PABS), designed to produce complex multi-material and…

1175

Abstract

Purpose

This paper aims to describe the control software of a novel manufacturing system called plasma-assisted bio-extrusion system (PABS), designed to produce complex multi-material and functionally graded scaffolds for tissue engineering applications. This fabrication system combines multiple pressure-assisted and screw-assisted printing heads and plasma jets. Control software allows the users to create single or multi-material constructs with uniform pore size or pore size gradients by changing the operation parameters, such as geometric parameters, lay-down pattern, filament distance, feed rate and layer thickness, and to produce functional graded scaffolds with different layer-by-layer coating/surface modification strategies by using the plasma modification system.

Design/methodology/approach

MATLAB GUI is used to develop the software, including the design of the user interface and the implementation of all mathematical programing for both multi-extrusion and plasma modification systems.

Findings

Based on the user definition, G programing codes are generated, enabling full integration and synchronization with the hardware of PABS. Single, multi-material and functionally graded scaffolds can be obtained by manipulating different materials, scaffold designs and processing parameters. The software is easy to use, allowing the efficient control of the PABS even for the fabrication of complex scaffolds.

Originality/value

This paper introduces a novel additive manufacturing system for tissue engineering applications describing in detail the software developed to control the system. This new fabrication system represents a step forward regarding the current state-of-the-art technology in the field of biomanufacturing, enabling the design and fabrication of more effective scaffolds matching the mechanical and surface characteristics of the surrounding tissue and enabling the incorporation of high number of cells uniformly distributed and the introduction of multiple cell types with positional specificity.

Details

Rapid Prototyping Journal, vol. 24 no. 2
Type: Research Article
ISSN: 1355-2546

Keywords

Open Access
Article
Publication date: 24 November 2022

Md. Meraz Ahmed, Anika Rahman, Md. Kamal Hossain and Fatimah Binti Tambi

This study was intended to ensure learner-centred pedagogy in an open and distance learning environment by applying scaffolding and positive reinforcement techniques.

1939

Abstract

Purpose

This study was intended to ensure learner-centred pedagogy in an open and distance learning environment by applying scaffolding and positive reinforcement techniques.

Design/methodology/approach

This study critically analysed the context and current instructional practice of Bangladesh Open University (BOU) via document analysis and literature review. The conceptual framework of this study was adapted from the ADDIE model, i.e. the analysis, design, development, implementation and evaluation model.

Findings

The study explored that the instructional practice of BOU was dominated by teacher-centred pedagogy. Hence, to ensure learner-centred pedagogy, the researchers developed three model lesson plans. These lesson plans infused the theoretical directives of scaffolding and positive reinforcement as well as several assessment tasks which can assess the learners’ lower-order and higher-order thinking skills. The researchers also presented possible challenges for the sound implementation of these model lesson plans and suggested pragmatic solutions accordingly.

Originality/value

This study recommended that the combined application of scaffolding and positive reinforcement would effectively ensure learner-centred pedagogy.

Details

Asian Association of Open Universities Journal, vol. 17 no. 3
Type: Research Article
ISSN: 1858-3431

Keywords

Open Access
Article
Publication date: 1 December 2015

Jason Hickey

The undergraduate research experience program is a funding program offered by the Qatar National Research Fund. The purpose of the program is to provide hands-on research…

Abstract

The undergraduate research experience program is a funding program offered by the Qatar National Research Fund. The purpose of the program is to provide hands-on research experience for undergraduate students in order to increase their capacity for future research activities. However, leading a team of unexperienced researchers can be challenging. Minimal literature exists of how to overcome these challenges and provide a positive learning experience for novice researchers. The purpose of this paper is to: 1) describe a ‘situated learning’ framework, and teaching methods and approaches that may be helpful for future researchers to actively engage students in the research learning process; 2) describe our own experiences with creating a professional community of research using a team approach; and, 3) offer some practical strategies for scaffolding students to gain research skills through working in close proximity to more experienced colleagues. Helpful situated learning strategies included active engagement of students throughout the project, setting meaningful activities, meeting regularly as a team, scaffolding student learning, setting both individual and group work, assigning specific roles, engaging students in dissemination activities, sharing responsibility, and fading control of project activities to the students as their competency increased. Using a structured mentoring strategy resulted in students being actively engaged in all stages of the project. This approach helped to overcome many challenges of working with novice researchers. It was also rewarding to observe the growth of young researchers through the experiences that they gained in working as members of a research community of practice.

Details

Learning and Teaching in Higher Education: Gulf Perspectives, vol. 12 no. 2
Type: Research Article
ISSN: 2077-5504

Open Access
Book part
Publication date: 29 March 2022

Joel Gehman, Dror Etzion and Fabrizio Ferraro

Although management scholars have embraced grand challenges research, in many cases, grand challenges have been treated as merely a context for exploring extant theoretical

Abstract

Although management scholars have embraced grand challenges research, in many cases, grand challenges have been treated as merely a context for exploring extant theoretical perspectives. By comparison, our approach – robust action – provides a novel theoretical framework for tackling grand challenges. In this invited article, we revisit our 2015 model, clarifying and elaborating its key elements and taking stock of subsequent developments. We then identify three promising directions for future research: scaffolding, future imaginaries, and distributed actorhood. Ultimately, our core message is remarkably simple: robust action strategies – participatory architecture, multivocal inscription and distributed experimentation – jointly provide a means for tackling grand challenges that is well matched to their complexities, uncertainties, and evaluativities.

Details

Organizing for Societal Grand Challenges
Type: Book
ISBN: 978-1-83909-829-1

Keywords

Content available
Article
Publication date: 1 October 2000

101

Abstract

Details

Structural Survey, vol. 18 no. 4
Type: Research Article
ISSN: 0263-080X

Keywords

Content available
Article
Publication date: 1 June 2005

171

Abstract

Details

Aircraft Engineering and Aerospace Technology, vol. 77 no. 3
Type: Research Article
ISSN: 0002-2667

Keywords

Open Access
Book part
Publication date: 2 August 2022

Christopher Ansell, Eva Sørensen and Jacob Torfing

This chapter explains how cocreation can be supported by establishing platforms, which provide knowledge, resources, and opportunities for local actors to come together in…

Abstract

This chapter explains how cocreation can be supported by establishing platforms, which provide knowledge, resources, and opportunities for local actors to come together in cocreation arenas. Platforms make it easy for local actors to connect, interact, and engage in productive joint activity. The chapter provides an overview of different types of platforms and describes their distinctive organizing logic, which includes mediating the relationship between different stakeholders, scaffolding their joint action, and leveraging their capacity for change. The chapter identifies important platform dynamics, such as attractor and amplifier effects, synergy, scaling, and social learning, that enable them to successfully support cocreation. Finally, the chapter discusses how platforms themselves can be designed to enhance these dynamics.

Details

Co-Creation for Sustainability
Type: Book
ISBN: 978-1-80043-798-2

Keywords

Open Access
Article
Publication date: 1 June 2006

Nikki Ashcraft

As new English-medium universities open their doors in the Arabian Gulf andsome Arabic-medium universities switch to using English as the language ofinstruction, instructors in…

Abstract

As new English-medium universities open their doors in the Arabian Gulf andsome Arabic-medium universities switch to using English as the language ofinstruction, instructors in all disciplines face the challenge of teaching theircourses in English to students who have learned (and who are continuing tolearn) English as a foreign language. This article reviews theories and practicesfrom the field of Applied Linguistics and Teaching English as a SecondLanguage (TESOL) which can help content-area instructors understand andreach these learners.

Second language acquisition research has produced several concepts ofinterest to content-area instructors. Krashen’s theory of comprehensible inputfocuses on the language used by the instructor, while Swain’s of comprehensibleoutput emphasizes providing opportunities for students to produce language. Cummins differentiates between two types of language proficiency: BasicInterpersonal Communication Skills (BICS), which are needed for dailyinteractions, and Cognitive Academic Language Proficiency (CALP), which isrequired for academic tasks. Interlanguage and first language interference mayalso influence students’ second language production in classroom settings.

Specific classroom practices for improving students’ language comprehensionand facilitating content learning are recommended. These include modifyingspeech, using visual aids, utilizing a variety of questioning techniques, andextending the time instructors wait for students to respond. Instructors canemploy strategies, such as mind-mapping and quickwriting, to activate students’linguistic and conceptual schemata at the beginning of a lesson. Scaffoldingprovides structure and support for students to complete tasks until they are ableto realize them on their own. Collaborative/cooperative learning lowers students’affective filters and offers opportunities for participation and language practice. Graphics illustrate some of the suggested practices.

Details

Learning and Teaching in Higher Education: Gulf Perspectives, vol. 3 no. 1
Type: Research Article
ISSN: 2077-5504

Content available
Article
Publication date: 1 March 2001

177

Abstract

Details

Facilities, vol. 19 no. 3/4
Type: Research Article
ISSN: 0263-2772

Keywords

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