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Article
Publication date: 3 August 2012

Andrew Adamatzky and Theresa Schubert

The purpose of this paper is to develop experimental laboratory biological techniques for approximation of principle transport networks, optimizing transport links, and developing…

Abstract

Purpose

The purpose of this paper is to develop experimental laboratory biological techniques for approximation of principle transport networks, optimizing transport links, and developing optimal solutions to current transport problems. It also aims to study how slime mould of Physarum polycephalum approximate autobahn networks in Germany.

Design/methodology/approach

The paper considers the 21 most populous urban areas in Germany. It represents these areas with source of nutrients placed in the positions of slime mould growing substrate corresponding to the areas. At the beginning of each experiment slime mould is inoculated in the Berlin area. Slime mould exhibits foraging behavior and spans sources of nutrients (which represent urban areas) with a network of protoplasmic tubes (which approximate vehicular transport networks). The study analyzes structure of transport networks developed by slime mould and compares it with families of known proximity graphs. It also imitates slime‐mould response to simulated disaster by placing sources of chemo‐repellents in the positions of nuclear power plants.

Findings

It is found that the plasmodium of Physarum polycephalum develops a minimal approximation of a transport network spanning urban areas. Physarum‐developed network matches autobahn network very well. The high degree of similarity is preserved even when we place high‐demand constraints on repeatability of links in the experiments. Physarum approximates almost all major transport links. In response to a sudden disaster, gradually spreading from its epicenter, the Physarum transport networks react by abandoning transport links affected by disaster zone, enhancement of those unaffected directly by the disaster, massive sprouting from the epicenter, and increase of scouting activity in the regions distant to the epicenter of the disaster.

Originality/value

Experimental methods and computer analysis techniques presented in the paper lay a foundation of novel biological laboratory approaches to imitation and prognostication of socio‐economical developments.

Details

Kybernetes, vol. 41 no. 7/8
Type: Research Article
ISSN: 0368-492X

Keywords

Book part
Publication date: 4 December 2003

Darryl V Caterine

This paper addresses the mutual interdependence of ethnic identity politics and conservative religious affiliation. Called “traditionalism” in this paper, conservative religious…

Abstract

This paper addresses the mutual interdependence of ethnic identity politics and conservative religious affiliation. Called “traditionalism” in this paper, conservative religious affiliation is seen to appeal most to ethnically homogenous communities who have arrived in the United States from Spanish Catholic countries and who draw on the ethnic identity conveyed by traditionalism to deliberately define themselves at a critical distance from the dominant resident culture, called “Anglo-Protestantism” in this paper.

Details

Ethnic Entrepreneurship: Structure and Process
Type: Book
ISBN: 978-1-84950-220-7

Book part
Publication date: 12 July 2011

Theresa M. Glomb, Michelle K. Duffy, Joyce E. Bono and Tao Yang

In this chapter, we argue that state and trait mindfulness and mindfulness-based practices in the workplace should enhance employee outcomes. First, we review the existing…

Abstract

In this chapter, we argue that state and trait mindfulness and mindfulness-based practices in the workplace should enhance employee outcomes. First, we review the existing literature on mindfulness, provide a brief history and definition of the construct, and discuss its beneficial effects on physical and psychological health. Second, we delineate a model of the mental and neurobiological processes by which mindfulness and mindfulness-based practices improve self-regulation of thoughts, emotions, and behaviors, linking them to both performance and employee well-being in the workplace. We especially focus on the power of mindfulness, via improved self-regulation, to enhance social relationships in the workplace, make employees more resilient in the face of challenges, and increase task performance. Third, we outline controversies, questions, and challenges that surround the study of mindfulness, paying special attention to the implications of unresolved issues for understanding the effects of mindfulness at work. We conclude with a discussion of the implications of our propositions for organizations and employees and offer some recommendations for future research on mindfulness in the workplace.

Details

Research in Personnel and Human Resources Management
Type: Book
ISBN: 978-0-85724-554-0

Content available
Book part
Publication date: 30 March 2022

Alex McInch

Abstract

Details

Working-Class Schooling in Post-Industrial Britain
Type: Book
ISBN: 978-1-80043-469-1

Article
Publication date: 10 February 2020

Dene Hurley and Amod Choudhary

The purpose of this study is to examine the role of chief financial officers’ (CFOs’) gender in financial risk taking of 58 US companies along with the impact of having women…

1982

Abstract

Purpose

The purpose of this study is to examine the role of chief financial officers’ (CFOs’) gender in financial risk taking of 58 US companies along with the impact of having women board members.

Design/methodology/approach

Using a panel data of 58 selected S&P 500 companies during the period 2012-2016, this paper determines whether the gender of CFOs and having women board members play a role in risk-taking behavior of firms.

Findings

Firms led by female CFOs are smaller in size with lower net income and net revenue. The panel data analysis shows that the impact of female CFOs on firms’ financial risk is mixed, depending on risk measures used, whereas increasing female board members reduces that risk.

Research limitations/implications

The data used is limited to 58 S&P 500 companies, and two of the three risk-taking measures used in the study, specifically investment in property, plant and equipment (PPE) and debt/equity ratio, may not be applicable to some industries.

Practical implications

The findings provide mixed evidence of risk aversion by females in executive and leadership positions, depending on the measures used and the management responsibilities they undertake (CFO versus board member) with support for the glass cliff phenomenon in which females may be leading financially precarious organizations.

Social implications

Female CFOs are found to be leading relatively smaller and financially poor-performing firms compared with the male CFO-led firms, thereby giving support to the glass cliff arguments.

Originality/value

The paper examines the role of CFOs’ gender and board diversity in risk taking as measured by the investment in PPE, debt/equity ratio and stock return volatility.

Details

Corporate Governance: The International Journal of Business in Society, vol. 20 no. 3
Type: Research Article
ISSN: 1472-0701

Keywords

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