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Article
Publication date: 9 March 2015

Sarbjeet Singh, Rupesh Kumar and Uday Kumar

The purpose of this paper is to demonstrate three techniques to extract human factor information from specific railway maintenance tasks. It describes the techniques and shows how…

Abstract

Purpose

The purpose of this paper is to demonstrate three techniques to extract human factor information from specific railway maintenance tasks. It describes the techniques and shows how these tools can be applied to identify improvements in maintenance practices and workflow.

Design/methodology/approach

Three case studies were conducted on single group of technicians (n=19) at a railway maintenance workshop in Luleå, Sweden. Case study I examined the posture of the technicians while they were changing the brake shoes of freight wagons; the study employed the Standard Nordic Questionnaire and a videotape using the Ovako Working Posture Analysis System (OWAS). Case study II looked at maintenance repair times required to change the wheel axle on freight wagons at the workshop. A video filming method suggested by the European Agency for Safety and Health at Work was used to measure actual maintenance time. Finally, case study III considered the technicians’ (n=19) perception of work demands, their control over the work and their social support while performing maintenance tasks (brake shoe and wheel axle maintenance); to this end, the case study used a demand control support questionnaire.

Findings

In the first case study, the Standard Nordic Questionnaire confirmed that technicians at this particular railway vehicle maintenance workshop suffer from back and shoulder pain. The Ovako Working Posture Analysis showed that 21 percent of the working time required to fit the brake wedge and cotter pin fits into two OWAS categories: category 3, where “change is required as soon as possible,” and category 4, where “change is required immediately”. Problems stem from poor workplace layout, incorrect posture and inaccessibility of tools and components. In the second study, the video analysis indicated that the working time to change the wheel axle of a freight wagon is greatly affected by poor workplace layout. The third case study showed that the technicians have lower “psychological demands” (mean=13), “higher control over work” (mean=16) and “high social support” (mean=22).

Practical implications

The objective of this study was to apply knowledge about human factors to the functional relationships between maintenance personnel, tasks and the working environment to improve safety. If the workplace layout, working posture, maintenance manuals and accessibility of tools are poorly planned, maintenance performance can be adversely affected. The results of this study should assist maintenance management to design new policies and guidelines for improving the work environment.

Originality/value

Three case studies were conducted at a railway maintenance workshop in Luleå, Sweden, to collect data on how human factors affect various railway maintenance tasks.

Details

Journal of Quality in Maintenance Engineering, vol. 21 no. 1
Type: Research Article
ISSN: 1355-2511

Keywords

Article
Publication date: 15 June 2020

Lawrence Olusegun Ajala, John O. Igidi, Temitope Omolayo Fasuan and Chidinma Emmanuel Ominyi

Leafy vegetables are known to be highly perishable because of high moisture content, which had resulted in applications of different preservative methods. However, these methods…

Abstract

Purpose

Leafy vegetables are known to be highly perishable because of high moisture content, which had resulted in applications of different preservative methods. However, these methods were not without certain limitations during storage. Osmotic pre-dehydration had been proved to be a better alternative because of high retention and improvement in nutritional qualities and stability during storage. This study aims to investigate the osmotic pre-dehydration of fluted pumpkin (Telfairia occidentalis) leaves.

Design/methodology/approach

Fluted pumpkin (T. occidentalis) leaves were pre-dried using sucrose, corn syrup and sodium chloride solutions as osmotic agents, while unosmo-predried leaves were used as the control. Both osmo-predehydrated and unosmo-predried leaves were dried in a hot air oven, whereas the effect of the osmotic agents on the nutritional qualities was investigated using standard protocols.

Findings

There were significant differences (p-values ranged from 0.001 to 0.030) in the proximate compositions of samples. Osmo-predried leaves recorded higher mineral contents in Ca, Cu, Fe, K, Mg, Mn and Na. Osmotic pre-dehydration by NaCl had a significant effect (p = 0.02) on ascorbic acid. The amino acid profile of the oven-dried leaves (unosmo-predried) showed that histidine and cysteine recorded high amino acid scores of 120.42% and 135%, respectively. Threonine (43.73%) recorded the highest essential amino acid score (without histidine). The economic evaluation indicated the percentage cost index difference of leaves treated with NaCl as 2.08%, sucrose (11.19%) and corn syrup (16.43%).

Originality/value

The high proportion of beneficial elements such as calcium, magnesium, phosphorus, potassium and appreciable chemical compositions of the osmo-predried leaves compared to unpre-dried leaves proved osmotic pre-dehydration as a value-added technique for preservation of leafy vegetables. The best osmotic agent was sodium chloride. This process could be applied on a small scale for the development of self-entrepreneurs and home-scale industries.

Details

Nutrition & Food Science , vol. 51 no. 2
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 17 November 2021

Raquel Alves Evaristo, Gilmar Freire da Costa, Cristiani Viegas Brandão Grisi and Solange de Sousa

The aim of the study was to evaluate the effect of osmo-convective dehydration using two drying temperatures (50 and 60°C) on the physico-chemical properties, shelf life and…

85

Abstract

Purpose

The aim of the study was to evaluate the effect of osmo-convective dehydration using two drying temperatures (50 and 60°C) on the physico-chemical properties, shelf life and sensory acceptability of jackfruit berries.

Design/methodology/approach

Four treatments were used as follows: T1 – Jackfruit berries dried in an oven at 50°C; T2 – Jackfruit berries dried in an oven at 60°C; T3 – Jackfruit berries pre-treated with an osmotic-sucrose solution (60 Brix concentration) and oven-dried at 50°C and T4 – Jackfruit berries pretreated with osmotic solution (60 Brix concentration) and oven-dried at 60°C. Berries' shelf life was monitored by moisture analysis, water activity (Wa) and microbiological analysis. The influence of treatments on physico-chemical properties and sensory quality was also investigated.

Findings

Osmo-convective dehydration at 50 and 60 C significantly (p = 0.001) reduced moisture content and Wa. All treatments increased the shelf life of jackfruit berries within 30 days of storage. Regarding sensory analysis, the T3 treatment was significantly (p = 0.001) the most preferred by the tasters.

Originality/value

In general, the results indicated that osmo-convective dehydration at 50 C has great potential to be a maid in the processing of minimally processed jackfruit berries, as, in addition to providing the product with high stability, it was the one with the greatest acceptability by the tasters.

Details

British Food Journal, vol. 124 no. 10
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 1 July 2004

Maria Vakola and Ian E. Wilson

The shift towards virtual organisation is related with a fundamental change in organising and managing daily operations. The success of collaborative work therefore relies not…

8237

Abstract

The shift towards virtual organisation is related with a fundamental change in organising and managing daily operations. The success of collaborative work therefore relies not merely on the introduction of different technologies, but also on critically analysing the “human” aspects of organisation. Virtual teams bring people together across disciplines, departments, functions, and geographical locations. This paper draws on the literature with respect to organisational change, and particularly results from human and organisational research carried out in the OSMOS (IST‐1999‐10491) project. Within the context of the OSMOS project, interviews with senior managers of each of the participating industrial organisations were conducted. From the analysis of these interviews four major organisational issues emerged, which virtual teams or e‐businesses need to address before moving forward. These are: information sharing, organisational culture and teamworking, acceptance of change and training. The paper investigates the above issues and explores potential solutions in order to support virtual organisations and e‐businesses in dealing with continuous change. From this investigation the paper proposes critical success factors that the authors believe to be necessary in dealing with such change.

Details

Team Performance Management: An International Journal, vol. 10 no. 5/6
Type: Research Article
ISSN: 1352-7592

Keywords

Article
Publication date: 16 August 2019

Jody Clarke-Midura, Victor R. Lee, Jessica F. Shumway and Megan M. Hamilton

This paper aims to be a think piece that promotes discussion around the design of coding toys for children. In particular, the authors examine three different toys that have some…

Abstract

Purpose

This paper aims to be a think piece that promotes discussion around the design of coding toys for children. In particular, the authors examine three different toys that have some sort of block-based coding interface. The authors juxtapose three different design features and the demands they place on young children learning to code. To examine the toys, the authors apply a framework developed based on Gibson’s theory of affordances and Palmer’s external representations. The authors look specifically at the toys: interface design, intended play scenario and representational conventions for computational ideas.

Design/methodology/approach

As a research team, the authors have been playing with toys, observing their own children play with the toys and using them in kindergarten classrooms. In this paper, the authors reflect specifically on the design of the toys and the demands they place on children.

Findings

The authors make no claims about whether one toy/design approach is superior to another. However, the differences that the authors articulate should serve as a provocation for researchers and designers to be mindful about what demands and expectations they place on young children as they learn to code and use code to learn in any given system.

Research limitations/implications

As mentioned above, the authors want to start a discussion about design of these toys and how they shape children's experience with coding.

Originality/value

There is a push to get coding and computational thinking into K-12, but there is not enough research on what this looks like in early childhood. Further, while research is starting to emerge on block-based programming vs text-based for older children and adults, little research has been done on the representational form of code for young children. The authors hope to start a discussion on design of coding toys for children.

Details

Information and Learning Sciences, vol. 120 no. 7/8
Type: Research Article
ISSN: 2398-5348

Keywords

Book part
Publication date: 8 December 2016

Khalid Arar

Following Starratt’s (1991) proposed conceptual framework for ethical leadership that is no longer defined as a style or an attitude, but as the basis for moral dimensions and…

Abstract

Following Starratt’s (1991) proposed conceptual framework for ethical leadership that is no longer defined as a style or an attitude, but as the basis for moral dimensions and actions that can be developed and based on the ethics of care, critique, and justice, this chapter traces the following questions: (a) How does cultural and social context influence the meaning and practices of unethical leadership in the school? (b) How do principals and vice-principals preserve and interpret their unethical practices? Using Langlois’s interview guide on ethical dilemmas (1997), 10 interviews were conducted with school principals and vice-principals in the Arab education system in Israel. The chapter presents unethical behaviors emerging from content analysis of the interviews such as personal development versus loyalty to others (unethical behaviors that are related to managing staff underperformance or appointing candidate teachers); or loyalty to my minority-society or to the government. The chapter fosters better understanding of both national specificities and universal commonalities associated with unethical leadership, as well as of the cultural and social characteristics that facilitate or hinder the development of ethical leadership, and finally explains some approaches to leadership that would improve the practice.

Details

The Dark Side of Leadership: Identifying and Overcoming Unethical Practice in Organizations
Type: Book
ISBN: 978-1-78635-499-0

Keywords

Article
Publication date: 1 January 2005

Charles J. Fornaciari, John J. Sherlock, William J. Ritchie and Kathy Lund Dean

This study identified and analyzed the 29 empirical articles which created 65 new scales that were published from 1996–2004 within the Spirituality, Religion, and Work (SRW…

Abstract

This study identified and analyzed the 29 empirical articles which created 65 new scales that were published from 1996–2004 within the Spirituality, Religion, and Work (SRW) domain. Utilizing Hinkin's (1995) methodology for evaluating questionnaire scale development as a model, this study reviewed: (1) item generation issues such as inductive vs. deductive approaches; (2) scale development issues such as sampling and validity/reliability assessment; and (3) scale evaluation issues such as convergent validity testing. The study found that the vast majority of studies (86%) reported detail on the item development process for the new scales used; the primary method for item development was deductive, based on existing theory. In the area of scale development, only 45% of the studies reported using factor analysis for evaluation of constructs; of those that did, less than 25% of those reported information regarding factor retention criteria, such as eigenvalues. With regard to the internal consistency, the coefficient alpha was reported in only 45% of the studies. However, in those cases where scale development practices were described, the information was generally quite detailed and reflected statistical rigor. Few studies (38%) reported any information related to scale evaluation. Similar to Hinkin's (1995) conclusions from his review of scales in the management field, this study found scale development practices within the SRW domain to be inconsistent. The article reports detailed findings using Hinkin ‘s (1995) detailed methods and discusses practical implications for editors, reviewers and SRW researchers.

Details

International Journal of Organizational Analysis, vol. 13 no. 1
Type: Research Article
ISSN: 1934-8835

Keywords

Article
Publication date: 1 May 1996

Ilkka Arminen

This is a study of how members of Alcoholics Anonymous (AA) produce their talk, using the principles of ethnomethodological conversation analysis. The focus is on two interralated…

Abstract

This is a study of how members of Alcoholics Anonymous (AA) produce their talk, using the principles of ethnomethodological conversation analysis. The focus is on two interralated phenomena of the openings of turns. Recurrently, the first words of the turns, i.e., greetings and self‐identification, are followed with a resonse space during which members display their orientation to coparticipants through allusions to prior speakers. Positive references to prior speakers are stated directly and addressed explicitly, typically through a phrase such as: “I identified with X and what X said,” wheras critical remarks are stated implicitly and without any address. Through this procedure, members establish their individual position in each meeting without posing challenges to other members. The allusions occasions initiation of a subsequent topic of the turn that characteristically is biographically relevant for the speaker. This procedure of organization of talk permits AA meetings to handle delicate issues in a sociable, nonconfrontive way.

Details

International Journal of Sociology and Social Policy, vol. 16 no. 5/6
Type: Research Article
ISSN: 0144-333X

Article
Publication date: 22 February 2008

Pia Suvivuo, Kerttu Tossavainen and Osmo Kontula

The purpose of this paper is to study in detail what kind of role alcohol has among a selected group of sexually active teenage girls, with special emphasis on their locus of…

1301

Abstract

Purpose

The purpose of this paper is to study in detail what kind of role alcohol has among a selected group of sexually active teenage girls, with special emphasis on their locus of control and risky sexual behaviour.

Design/methodology/approach

The data comprise the narratives of 87 girls regarding their experience with sexually motivating situations that involved alcohol. The narratives were analysed with a categorical‐content mode of reading.

Findings

Narratives belonging to the category ”Everything under control” involved self‐directed girls with strong self‐control who remained in control of the sexually motivated situation despite their drunkenness. “Let it go” narratives were characterised by outwardly directed girls with weak self‐control, irrespective of alcohol use. The effect of alcohol was most noticeable in “I both wanted and didn't want” narratives by girls who had shaky and situation‐dependent self‐control. Their ability to control a sexually motivated situation was unstable and considerably affected by alcohol use.

Practical implications

Alcohol use should be taken into account in sex education and vice versa. Sexual issues should be brought up in education concerning substance use. Young girls should be taught to recognise their own feelings and to consider beforehand what they want from their dating relationships. Role playing can be a useful tool in learning how to better handle sexually motivated situations. A feeling of regret can be utilised in health education both in providing knowledge and as a motivation for behavioural reform.

Originality/value

This study provides sophisticated information for comprehension of the conflicting results of earlier surveys, and it suggests that the association between alcohol use and sexual behaviour is affected by the type of self‐control tendency that girls possess.

Details

Health Education, vol. 108 no. 2
Type: Research Article
ISSN: 0965-4283

Keywords

Article
Publication date: 17 April 2009

Anna‐Liisa Kosonen, Irja Haapala, Säde Kuurala, Salla Mielonen, Osmo Hänninen and Graca S. Carvalho

The purpose of this paper is to compare the construction of health knowledge in the Finnish national curriculum and recent Finnish health education textbooks, at primary and…

855

Abstract

Purpose

The purpose of this paper is to compare the construction of health knowledge in the Finnish national curriculum and recent Finnish health education textbooks, at primary and secondary levels of education. The authors examine the visual and textual content of the textbooks in an attempt to identify their pedagogical style and approach to health education.

Design/methodology/approach

The study is part of an international, European Union funded, FP6 STREP Project, Biohead‐Citizen. Conceptual health knowledge construction is analysed evaluating the emphasis placed on a biomedical model or on a health promotion ( HP) approach. Pedagogical style of the text and illustration is classified as either neutral, persuasive, participative or injunctive, out of which especially persuasive and participative reflect the constructionist approach.

Findings

The textbooks cover a wide range of health topics and meet the core contents of the national curriculum. The approach used was primarily that of HP and used a persuasive and participative approach. The pedagogical style of text, tasks and illustrations reflected current pedagogical thinking.

Research limitations/implications

The study encourages future research to explore the effects of pedagogical construction on materials and learning in health education.

Originality/value

The paper usefully analyzes the pedagogical properties of recent Finnish health knowledge textbooks.

Details

Health Education, vol. 109 no. 3
Type: Research Article
ISSN: 0965-4283

Keywords

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