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Integrative Systems Methodology: Heuristic for Requisite Variety

The author introduces a new methodological framework for dealing with complex issues, named Integrative Systems Methodology (ISM). ISM is a general heuristic to help actors in organizations and society achieve requisite variety. For this purpose, numerous "problem solving" approaches have been developed. ISM is aimed at overcoming the drawbacks of many established...

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English / 01/01/1997

The Swiss decision support system: State of the art and experiences

Development of the Decision Support System (DSS) used by the National Emergency Operations Centre in Switzerland began immediately after the accident at Chernobyl. The system will evaluate acceptable countermeasures following the accidental release of radioactivity in order to reduce ingestion dose. The DSS - not designed for the very early phase following the accidental release of...

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English / 11/10/1996

ECOSYS-87: Model Calculations of the activity in cow meat related to deposition time and feeding regimes after a nuclear fallout

The radioecological model ECOSYS-87 was used to evaluate the effect of countermeasures for reducing the ingestion dose by eating cattle meat after an accidental release of radioactive material. Calculations were performed using a database adapted to Swiss conditions for the case that (1) contaminated grass or hay is replaced by clean fodder; (2) the last 100 days before slaughter,...

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English / 01/01/1996

A look at the Nd as a special case of CNV

Tone onset and normal tone offset in Nd tasks are formally similar to the S1 and S2 events in a CNV task requiring perceptual discrimination (tone duration) for designated tones. If the Nd thus reflects more than mere stimulus selection, increasing the duration of all tones should lengthen the Nd wave. Eight subjects participated to three Nd tasks, with short tones of 50, 150, and...

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English / 01/01/1996

Embodiments of Organizational Fitness. The Viable System Model (VSM) as a Guide

Managers are facing new problems in their quest for organizational fitness. With environments of growing complexity, foresight, adaptability, and learning become critical features for a social system to survive and develop. Established models of organizational control are insufficient to cope with this proliferating complexity. The science of cybernetics provides powerful models to...

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English / 01/01/1990

Strategic Management in Tourism

This contribution applies the latest theory of business strategy to
the specific requirements of the tourist sector. The article an
alyzes the principal purpose of strategic management -
the development and the enhancement of sustained earnings poten
tials, as the prerequisite of long-term business success. Further,
it identifies the determinants of...

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English / 01/01/1989

Full information estimations of a system of simultaneous equations with error component structure

In this paper we develop full information methods for estimating the parameters of a system of simultaneous equations with error component struc-ture and establish relationships between the various structural estimat

Institution partenaire

Université de Genève

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English / 01/01/1987

Governance Structure and the Credibility Gap: Experimental Evidence on Family Businesses’ Sustainability Reporting

This paper examines the success of corporate communication in voluntary sustainability reporting. Existing studies have focused on the perspective of the communicators but lack an understanding of the perspective of information recipients to clearly evaluate this interactive communication process. This paper looks at the issue of a credibility gap perceived by external stakeholders...

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