Search results

1 – 10 of over 1000
Article
Publication date: 1 July 2014

Martin W. Hess and Peter Benner

The Reduced Basis Method (RBM) generates low-order models of parametrized PDEs to allow for efficient evaluation of parametrized models in many-query and real-time contexts. The…

Abstract

Purpose

The Reduced Basis Method (RBM) generates low-order models of parametrized PDEs to allow for efficient evaluation of parametrized models in many-query and real-time contexts. The purpose of this paper is to investigate the performance of the RBM in microwave semiconductor devices, governed by Maxwell's equations.

Design/methodology/approach

The paper shows the theoretical framework in which the RBM is applied to Maxwell's equations and present numerical results for model reduction under geometry variation.

Findings

The RBM reduces model order by a factor of $1,000 and more with guaranteed error bounds.

Originality/value

Exponential convergence speed can be observed by numerical experiments, which makes the RBM a suitable method for parametric model reduction (PMOR).

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 33 no. 4
Type: Research Article
ISSN: 0332-1649

Keywords

Book part
Publication date: 22 July 2014

David J. Hess

The emergence of climate science denialism in the United States provides a challenge to STS theories of the relationship between scientific expertise and public policy because a…

Abstract

The emergence of climate science denialism in the United States provides a challenge to STS theories of the relationship between scientific expertise and public policy because a situation of epistemic rift occurs: the capacity of scientific consensus to establish the grounds of political debate is broken, and the standard circulation of expertise from the scientists and funding from the state is interrupted. Three mechanisms for the containment of scientific expertise are studied: direct intellectual suppression of climate scientists, industry support of contrarian scientists and policymakers, and cutbacks on government research programs that support climate change. This situation politicizes climate scientists, who are drawn into the public sphere as a counterpublic to the effort to contain the circulation of their knowledge in the political field. Although the strategy of contained expertise has been effective in blocking climate legislation at the federal government level in the United States, it may be losing effectiveness, and an emergent alternative strategy based on adaptation may be coming to replace it. Factors that affect the reduction in the capacity to contain the circulation of scientific expertise are also analyzed.

Details

Fields of Knowledge: Science, Politics and Publics in the Neoliberal Age
Type: Book
ISBN: 978-1-78350-668-2

Article
Publication date: 8 January 2019

Ricardo Martins, Tiago Oliveira, Manoj Thomas and Sara Tomás

Although studies have investigated reasons for software as a service (SaaS) adoption, it is unclear how firm-level SaaS use impacts future SaaS intentions. The purpose of this…

1682

Abstract

Purpose

Although studies have investigated reasons for software as a service (SaaS) adoption, it is unclear how firm-level SaaS use impacts future SaaS intentions. The purpose of this paper is to propose a theoretical model that integrates the technology-organization-environment framework, institutional theory, diffusion-of-innovation theory and the opportunity-risk framework to analyze the drivers of SaaS use and its continuance intention.

Design/methodology/approach

The authors evaluated the direct, moderating and mediating effects of determinants on SaaS continuance intentions using structural equation modeling and data from 301 firms.

Findings

Results found that top management support and normative pressures influenced SaaS use. Cost saving and security concerns were direct predictors of perceived opportunities and perceived risks, respectively. Perceived opportunities and risks and actual SaaS use influenced SaaS continuance. Interestingly, perceived opportunities were found to be a negative moderator on the relationship between SaaS use and SaaS continuance.

Originality/value

The results reveal insightful and controversial findings for SaaS research.

Details

Information Technology & People, vol. 32 no. 1
Type: Research Article
ISSN: 0959-3845

Keywords

Book part
Publication date: 22 July 2014

Kelly Moore and Matthew C. Hoffmann

Field theory is waxing in the sociology of science, and Pierre Bourdieu’s work is especially influential. His characterization of field structure and dynamics has been especially…

Abstract

Field theory is waxing in the sociology of science, and Pierre Bourdieu’s work is especially influential. His characterization of field structure and dynamics has been especially valuable in drawing attention to hierarchical and center-periphery relations in science and technology, and to the stability and reproduction of science and technology practices. What field theory does less well, however, is to capture the existence of multiple (including marginal) logics around a given sociotechnical object. Nor does it capture the dynamics of a specific logic of neoliberal capitalism in the US: the cultural and economic value of entrepreneurship that emphasizes the continual reconfiguration of social relations, which has its roots in a longer US history of progress-through-reinvention, and is abetted by new technologies designed to continually “update” and remix. Much better at capturing these qualities, we argue, is an institutionalist theory in which dynamism, not stasis, is foregrounded, and there is room for multiple, contradictory, and non-cognitive logics to co-exist. Using the expansion of “alternative nutrition” in the US, we show that its formation took place via the conjunction of parallel streams of social action that encompassed diverse logics and encouraged creativity and hybridity. More generally, variability in field stability and qualities, not static fields, deserve analytic attention.

Details

Fields of Knowledge: Science, Politics and Publics in the Neoliberal Age
Type: Book
ISBN: 978-1-78350-668-2

Book part
Publication date: 8 August 2022

Diana Adela Martin, Christian Herzog, Kyriaki Papageorgiou and Gunter Bombaerts

The chapter presents the implementation of ethics education via challenge-based learning (CBL) in three European settings. At TU Eindhoven (the Netherlands), a mandatory…

Abstract

The chapter presents the implementation of ethics education via challenge-based learning (CBL) in three European settings. At TU Eindhoven (the Netherlands), a mandatory first-year User, Society, and Enterprise course on the ethics and history of technology offers a CBL alternative on ethics and data analytics in collaboration with internal student and research teams. The University of Lübeck (Germany) initiated the project CREATE – Challenge-based Learning for Robotics Students by Engaging Start-Ups in Technology Ethics, which enables 60 students in Robotics and Autonomous Systems to integrate ethical and societal considerations into technological development processes, in cooperation with start-ups from a local accelerator. In Spain, CBI-Fusion Point brings together 40 students from business and law (ESADE), engineering and technology (Polytechnic University of Catalonia), and design (IED Barcelona Design University) for an innovation course focused on the application of CERN-developed technologies to real-world problems. The chapter documents the process of setting up three CBL courses that engage students with grand societal topics which require the integration of ethical concerns from the design stage of technological development. The authors also reflect on the challenges of teaching ethics via CBL and the lessons they learned by delivering experiential learning activities rooted in real-life challenges and contexts marked by high epistemic uncertainty. The contribution reflects the transition to remote teaching and presents strategies employed to enhance online communication and collaboration. The chapter thus provides guidance for instructors interested in teaching ethics via CBL and recommends further lines for action and research.

Content available
Book part
Publication date: 5 July 2017

Abstract

Details

Insights and Research on the Study of Gender and Intersectionality in International Airline Cultures
Type: Book
ISBN: 978-1-78714-546-7

Book part
Publication date: 2 November 2009

H. J. P. Timmermans and E. Hato

In this chapter, we address the question if and how modern technology can be used to design questionnaires, diaries, web sites, and experiments to improve the validity of…

Abstract

In this chapter, we address the question if and how modern technology can be used to design questionnaires, diaries, web sites, and experiments to improve the validity of reliability of active data collection instruments. In particular, it discusses the history of computer-assisted activity diary data, reenactment sessions, stated preference methods, and interactive computer experiments with a special focus on the design of these instruments in terms of respondent support and user interfaces. Empirical evidence and experience suggests that although fascinating instruments may increase respondent motivation and involvement and therefore improve the reliability of the measurements, there is also the danger that respondents' answers are influenced by features of the electronic instrument that are not essential, reducing validity and reliability.

Details

Transport Survey Methods
Type: Book
ISBN: 978-1-84-855844-1

Book part
Publication date: 1 January 2014

Alexander W. Wiseman

Evidence suggests that international comparison has become a ubiquitous component of educational innovation and entrepreneurship in spite of significant variation among…

Abstract

Evidence suggests that international comparison has become a ubiquitous component of educational innovation and entrepreneurship in spite of significant variation among educational contexts worldwide. This chapter provides an overview of educational innovation and public sector entrepreneurship from an internationally comparative perspective. The influence that the global shift from natural resource and industry-based economies to knowledge-based economies has had on the development of educational innovation and entrepreneurship is explained. Several examples of educational innovation and education-oriented public sector entrepreneurship highlight the discussion, which concludes with an examination of specific knowledge society issues related to educational entrepreneurship and its reciprocal effect on innovation.

Details

International Educational Innovation and Public Sector Entrepreneurship
Type: Book
ISBN: 978-1-78190-708-5

Keywords

Article
Publication date: 2 November 2020

Matthias Dörries

This paper uses a historical case study, the controversy over the possibility of climatic extremes caused by hydrogen bomb tests on Pacific Ocean atolls during the 1950s, to show…

Abstract

Purpose

This paper uses a historical case study, the controversy over the possibility of climatic extremes caused by hydrogen bomb tests on Pacific Ocean atolls during the 1950s, to show how, in a context of few scientific data and high uncertainty, political affiliations and public concerns shaped two types of argumentation, the “energy” and the “precautionary” arguments.

Design/methodology/approach

Systematic analysis of publications 1954–1956: scientific and semiscientific articles, publications of C.-N. Martin and contemporary newspaper articles, especially from the Asia–Pacific region.

Findings

First, epistemological and scientific reasoning about the likelihood of extreme natural events aligned to political convictions and pressure. Second, a geographical and social distribution of arguments: the relativizing “energy argument” prevailed in English-language scientific journals, while the “precautionary argument” dominated in popular journals and newspapers published worldwide. Third, while the “energy argument” attained general scientific consensus within two years, it lost out in the long run. The proponents of the “precautionary argument” raised relevant research questions that, though first rejected in the 1950s, later exposed the fallacies of the “energy argument” (shown for the case of the climatologist William W. Kellogg).

Originality/value

In contrast to the existing secondary literature, this paper presents a balanced view of the weaknesses and strengths of two lines of arguments in the 1950s. Further, this historical study sheds light on how once-discarded scientific theories may ultimately be reconsidered in a completely different political and scientific context, thus justifying the original precautionary argument.

Details

Disaster Prevention and Management: An International Journal, vol. 30 no. 1
Type: Research Article
ISSN: 0965-3562

Keywords

Book part
Publication date: 12 March 2020

Giorgio Mion and Cristian R. Loza Adaui

Public-interest entities – among which are listed companies – are obliged to publish nonfinancial disclosure in some countries and regions. The European Commission established…

Abstract

Public-interest entities – among which are listed companies – are obliged to publish nonfinancial disclosure in some countries and regions. The European Commission established mandatory nonfinancial disclosure by Directive 2014/95/EU. While a large body of literature was developed on sustainability reporting quality (SRQ) in voluntary context, evidence about the effect of mandatory nonfinancial disclosure on SRQ is controversial and previous experiences worldwide did not make clear if obligatoriness improves SRQ. This chapter aims to bridge the gap of empirical evidence about this phenomenon in European countries, focusing on first implementation of new legislation by Italian and German companies. The research has an explorative character and it adopts content analysis methods performed on sustainability reporting practices of companies listed in FTSE-MIB and DAX 30. The analysis aims to understand if obligatoriness affects SRQ, causes some changes in reporting practices such as harmonizing Italian and German ones by performing a cross-country comparison. The findings suggest that obligatoriness improves reporting quality and, above all, it fills the gap between different countries by fostering the adoption of international guidelines and the consequent introduction of some content, such as materiality analysis and quantitative measures of social and environmental performance.

Details

Non-Financial Disclosure and Integrated Reporting: Practices and Critical Issues
Type: Book
ISBN: 978-1-83867-964-4

Keywords

1 – 10 of over 1000