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Publication date: 11 September 2015

Christopher A. Shields, Brent L. Smith and Kelly R. Damphousse

In this chapter, we provide a brief historical framework of the events and policy changes that impacted the prosecution of terrorism over the past 50 years with emphasis…

Abstract

Purpose

In this chapter, we provide a brief historical framework of the events and policy changes that impacted the prosecution of terrorism over the past 50 years with emphasis placed on the changes that resulted from the 9/11 attacks.

Methodology/approach

We provide a review of relevant literature and complete the chapter by providing new data (2015) on case outcomes derived from the American Terrorism Study, a database housed in the Terrorism Research Center in Fulbright College, at the University of Arkansas.

Findings

Investigative and prosecutorial authority in U.S. terrorism cases has experienced ebbs and flows that correspond with terrorism attacks as well as missteps by the FBI, and each has impacted the success of prosecution efforts. Despite dramatic changes, the number of cases prosecuted after 9/11 is unprecedented, and conviction rates continue to climb.

Originality/value

This chapter provides the reader with a synopsis of the policy changes that have occurred in federal terrorism investigations and trials from the late 1960s upto the present. Based on that context, we provide an explanation of how those policy changes have impacted terrorism prosecutions.

Details

Terrorism and Counterterrorism Today
Type: Book
ISBN: 978-1-78560-191-0

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Abstract

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Terrorism and Counterterrorism Today
Type: Book
ISBN: 978-1-78560-191-0

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Book part
Publication date: 11 September 2015

Abstract

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Terrorism and Counterterrorism Today
Type: Book
ISBN: 978-1-78560-191-0

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Article
Publication date: 25 July 2019

Christopher Stroehlein, Hermann Landes, Andreas Krug and Peter Dietz

The purpose of this paper is to investigate magneto-mechanical coupling occurring in magnetic resonance imaging (MRI) systems. The authors study influence of the strength…

Abstract

Purpose

The purpose of this paper is to investigate magneto-mechanical coupling occurring in magnetic resonance imaging (MRI) systems. The authors study influence of the strength of the background field on the coupling of mechanically isolated, conductive cylindrical structures and the so-called shields. This coupling has a strong impact on frequency-dependent thermal losses occurring in the shield structures which are of high importance in MRI systems.

Design/methodology/approach

In the investigations, numerical methods are applied. First, finite element methods taking into account the full magneto-mechanical coupling are used to investigate the coupled physical phenomena. As these calculations may be time-consuming, several approximate predictive methods are derived. Modal expansion factors and participation factors are based on combinations of structural eigenmode calculations and eddy current calculations using Biot–Savart representations of the dynamic gradient field. In addition, a parallelism factor expressed in terms of the shield vibrations is defined to measure the coupling between the distinct cylinders.

Findings

It is found that the strength of the background field strongly influences the coupling of the distinct shields, which strongly increases the parallelism of the shield vibrations. Furthermore, modal expansion and participation factors are significantly influenced, caused by frequency shifts due to magnetic stiffening and increased magnetic coupling.

Research limitations/implications

The current work is limited to the modal expansions of a single shield. This needs to be extended in the future as comparison of modal expansion factors and finite element simulation indicate.

Originality/value

The defined factors estimating parallelism and modal participation in magneto-mechanical coupling are original work and studied for the first time.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 38 no. 5
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 June 2002

James W. Bishop, Michael G. Goldsby and Christopher P. Neck

Traditional employment practices since the Second World War had usually ensured job security for a company’s workforce. However, the increasingly competitive environment…

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Abstract

Traditional employment practices since the Second World War had usually ensured job security for a company’s workforce. However, the increasingly competitive environment and the restructuring of companies in the 1980s and 1990s have made this practice impossible to continue; therefore, layoffs have become a fact of life for employees in an increasing number of industries. The purpose of this study was to examine attitudes in two employment environments, one in which temporary workers were used to shield permanent employees from layoffs and another in which layoff decisions were made without regard to permanent or temporary status. Specifically, examination was made of the relationships among perceived organizational support (POS), organizational commitment, and intention to quit, and the relative levels of these variables across two environments and the two classes of workers. It was found that, as expected, the relationships among the commitment variables and intention to quit were similar within both environments. Also, as expected, levels of commitment in the “shield” environment were higher than in the “layoff” environment; and POS was higher among temporary employees in the “shield” environment than among permanent workers in the “layoff” environment. A particularly interesting finding was that, in the “layoff” environment, POS among temporary workers was higher than among permanent workers.

Details

Journal of Managerial Psychology, vol. 17 no. 4
Type: Research Article
ISSN: 0268-3946

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Article
Publication date: 1 April 1991

Allan Metz

This is a selective annotated bibliography of the literature on Christopher Columbus from 1970 to 1989. The subject is particularly relevant considering the approach of…

Abstract

This is a selective annotated bibliography of the literature on Christopher Columbus from 1970 to 1989. The subject is particularly relevant considering the approach of the Quincentenary of the “discovery” of America in 1992. For that same reason, there has been an outpouring of literature on the subject since 1990, a significant subset of which contributes to are interpretation of Columbus the man, his voyages, and their impact on the new world. It is hoped that this more recent literature will be part of a subsequent annotated bibliography.

Details

Reference Services Review, vol. 19 no. 4
Type: Research Article
ISSN: 0090-7324

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Article
Publication date: 15 March 2011

Martin Christopher, Carlos Mena, Omera Khan and Oznur Yurt

Global sourcing can bring many benefits to organisations, but it can also expose them to a number of risks. The purpose of this study is to understand how managers assess…

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23179

Abstract

Purpose

Global sourcing can bring many benefits to organisations, but it can also expose them to a number of risks. The purpose of this study is to understand how managers assess global sourcing risks across the entire supply chain and what actions they take to mitigate those risks.

Design/methodology/approach

A multiple case study approach was used, involving 15 cases in seven different industries. Each case consisted of interviews with managers directly involved in the global sourcing decision, supported by documentary evidence. A cross‐case analysis was conducted to analyse patterns across different industries.

Findings

The study revealed that most companies do not have a structured supply chain risk management and mitigation system. Nevertheless they do use a number of informal approaches to cope with risk. The paper proposes that a multidisciplinary approach is required when dealing with global sourcing risks. It presents a classification of risks covering four categories: supply risk, process and control risks, environmental and sustainability risks, and demand risks.

Originality/value

The paper addresses a research gap concerning managers' approaches to assessing and mitigating supply chain risk in a global context. In this context, this study proposes a new categorisation for global sourcing risks and offers a characterisation of global sourcing risk mitigation strategies applicable to different industries.

Details

Supply Chain Management: An International Journal, vol. 16 no. 2
Type: Research Article
ISSN: 1359-8546

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Article
Publication date: 2 December 2020

Christopher Amoah and Fredrick Simpeh

The COVID-19 pandemic drastically changed safety measures in every industry, including the construction industry. Thus, the construction companies have instituted safety…

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1217

Abstract

Purpose

The COVID-19 pandemic drastically changed safety measures in every industry, including the construction industry. Thus, the construction companies have instituted safety measures at the construction sites to curve the disease’s spread among the workforce. This paper aims to examine the challenges encountered by construction firms in implementing COVID-19 safety measures at construction sites.

Design/methodology/approach

A qualitative research approach was adopted for this study using open-ended interview questions to solicit data from 19 construction professionals currently working on a construction project in South Africa. Content analysis with the assistance of an Excel spreadsheet was used to analyse the data collected.

Findings

The findings indicate that there are numerous challenges such as ignorance of COVID-19, the supply of poor personal protective equipment (PPEs) by contractors, lack of compliance, sanitising construction materials, difficulty in sharing tools and equipment, public transport usage by workers, superstition (COVID-19 is for a particular group of people), complying with social distancing rules, among others in the implementation of the COVID-19 safety measure at the construction site to curb the spread of the disease among the workers. These challenges have, therefore, hampered their effort to strictly adhere to the safety measures in accordance with the COVID-19 safety protocol at the project sites currently under construction.

Research limitations/implications

The interviewees were construction professionals working in the South African construction industry during the COVID-19 period.

Practical implications

The implication is that, due to the challenges faced in implementing the COVID-19 safety measures, workers on the construction site are not adequately protected from contracting COVID-19. The workers may thus contract the disease at the project sites and transmit it to their families and vice versa, which may have further implications on the spread of the disease within the communities and society.

Originality/value

The study has identified implementation challenges of the COVID-19 safety measures at construction sites of which the construction stakeholders must institute measures to overcome since COVID-19 has become part of our daily life. The study also recommends some preventive measures to the owners of construction companies to help overcome or minimise these COVID-19 safety implementation hurdles to minimise the spread of the disease among the construction site workers.

Details

Journal of Facilities Management , vol. 19 no. 1
Type: Research Article
ISSN: 1472-5967

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Abstract

Purpose

The purpose of this chapter is to determine whether graduate classes in deep democracy and social justice can actually effect change in educators’ leadership practice.

Methodology/approach

This chapter draws on a survey of all doctoral students in educational leadership from a major research university who were concurrently school principals. From those willing to engage in follow-up, surveys were conducted of their teachers, and follow-up interviews and observations were conducted with the principals themselves.

Findings

We identified six main themes; courses related to deep democracy and social justice brought about deeper understanding of the topics, helped leaders acquire language and “new paradigms,” sometimes caused confusion and a sense of being overwhelmed by the challenges, assisted leaders to engage staff in dialogue, and prompted action related to social justice. Leaders also sometimes experienced a sense of being alone as they engaged in a difficult struggle.

Practical implications

The findings highlighted the need for instructors to walk “alongside” their students as they tried to change their practices, to become critical friends and to offer on-site support.

Research implications

Findings also highlight the importance of teaching both theory and practical applications together. Further research about the pedagogies that make this possible is needed.

Social implications

If graduate coursework can impact leaders’ practice, it can effect changes in schools so they become more welcoming and inclusive of all students so that those who come from minoritized or disadvantaged backgrounds may experience greater school success.

Originality/value of chapter

Demonstrating a link between graduate coursework and the ability of school leaders to emphasize social justice, equity and deep democracy in their practice is not only original but extremely important.

Details

Investing in our Education: Leading, Learning, Researching and the Doctorate
Type: Book
ISBN: 978-1-78441-131-2

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Article
Publication date: 14 January 2020

Dao Le Trang Anh and Christopher Gan

The purpose of this paper is to measure profitability and marketability efficiencies as well as examine the efficiencies’ determinants of listed manufacturing firms in Vietnam.

Abstract

Purpose

The purpose of this paper is to measure profitability and marketability efficiencies as well as examine the efficiencies’ determinants of listed manufacturing firms in Vietnam.

Design/methodology/approach

This study employs a bootstrap two-stage data envelopment analysis (DEA) approach to investigate the profitability and marketability efficiencies of 102 listed manufacturing firms on Vietnam stock market from 2007 to 2018. The study also applies fractional regression models (FRM) to identify the determinants of Vietnam manufacturing firms’ efficiencies.

Findings

The results reveal that Vietnam manufacturing firms obtain higher average profitability efficiency scores (0.888) than marketability efficiency scores (0.527) from 2007 to 2018. The high-tech firms achieve better profitability and marketability efficiencies than the traditional (resource-intensive and labour-intensive) Vietnam manufacturing firms in recent years (2016–2018). Further, the financial and non-financial factors have heterogeneous impacts on Vietnam manufacturing enterprises’ profit and market valuation efficiencies.

Research limitations/implications

Due to the nature of DEA technique that requires every decision-making unit to have available data of all inputs and outputs, the listed Vietnam manufacturing firms that have incomplete data or go public after 2007 are not included in the data set.

Practical implications

This study provides a reference for Vietnam manufacturing managers to position their firms competitively in the market as well as make wise operating, financing and management decisions.

Originality/value

This is the first study that attempts to combine bootstrap two-stage DEA and FRM, which are considered advantageous methods for DEA scores’ measurements and determinant evaluations in the current literature.

Details

International Journal of Social Economics, vol. 47 no. 1
Type: Research Article
ISSN: 0306-8293

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