Generating repudiable, memorizable and privacy preserving security questions using the Propp Theory of Narrative

 Security questions are often based on personal information that is limited in variety, available in the public record and very difficult to change if compromised. A personalized folktale shared only by the communicating parties provides memorizable basis for individualized security questions that can be readily replaced in the event of a security breach. We utilize the Propp theory of narrative to provide a basis of abstraction for story generation systems. We develop a proof-of-concept system based on placeholder replacement to demonstrate the generation of repudiate and memorizable questions and answers suitable for online security questions. A 3-component protocol is presented that demonstrates the use of this process to derive a shared secret key through privacy amplification. This combination of story generation and communication security provides the basis for improvements in current security question practice.

Consensual commitment: a grounded theory of the meso-level influence of organizational design on leadership and decision-making

This research examined the relationship between organizational design and leadership in decision-making teams. It used a grounded theory-based qualitative research design. The validity of the research was enhanced by data triangulation, wherein quantitative psychometric data augmented the qualitative data that are traditionally used. The research was based upon two organizations within the substantive setting of the knowledge industry. The higher order category of consensual commitment explained effective decision-making. At the meso-level of leadership modeling, organizational design influenced both leadership style and decision-making. Specifically, an organizational design that generated lateral job roles and a relational leadership orientation was found to enhance consensual commitment, and provided a level of assurance against dysfunctional team dynamics. © 2009 Elsevier Inc. All rights reserved.

Reliability and validity of the transport and physical activity questionnaire (TPAQ) for assessing physical activity behaviour

No current validated survey instrument allows a comprehensive assessment of both physical activity and travel behaviours for use in interdisciplinary research on walking and cycling. This study reports on the test-retest reliability and validity of physical activity measures in the transport and physical activity questionnaire (TPAQ).

Imago veritas falsa: for a (post-)Schmittian decisionist theory of law, legal reasoning, and judging

For decades, while approaching the ‘normativism/pragmatism’ divide and discussing the legitimacy of (and opportunity for) the judge to act as a ‘social engineer’, socio-legal scholars have tried to ascertain whether the jurist should also consider the impact of his/her activity on society at large, and if so, why and to what extent. The present contribution understands instead the law in terms of a structurally incomplete image (imago veritas falsa) which always needs the decisive intervention of the legal interpreter to exercise its performative instances. In particular, by adopting an unconventional theoretico-philosophical approach that transcends the classic boundaries of foundationalist metaphysics as expressed by the dichotomy of Western logic, this paper argues for the necessity of a tertium comparationis capable of explaining that the real essence of law, legal reasoning, and judging is neither that of normativism, nor of pragmatism, but rather of (post-)Schmittian decisionism.

A general theory of tourism consumption systems: a conceptual framework and an empirical exploration

A tourism consumption system (TCS) is defined as the setof related travel thoughts, decisions, and behaviors by a discretionarytraveler prior to, during, and following a trip. Thecentral proposition of a theory of TCS is that the thoughts,decisions, and behaviors regarding one activity influence thethoughts, decisions, and behaviors for a number of other activities.Using exit interview travel data and quick clusteringanalysis, this article empirically examines seven basic TCSpropositions pertaining to decisions made once the destinationhas been selected. The findings support and extend thebasic propositions specifically indicating clear patterns inthe behaviors of visitors to Prince Edward Island, Canada.The authors conclude by recommending that this approach isuseful for tourism marketers and practitioners in general.Suggestions are provided for analyzing TCS to increase theeffectiveness of tourism marketing strategies.

Toward a receiver-based theory of knowledge sharing

Managers and researchers alike have sought new ways to address the challenges of sharing dispersed knowledge in modern business environments. Careful consideration by sharers of receivers' knowledge needs and behaviours may improve the effectiveness of organisational knowledge sharing. This research examines how sharers react to their perceptions of receivers' knowledge needs and behaviours when making choices relating to sharing knowledge. The focus of this article is to propose and empirically explore a theoretical framework for a study of the role of the receiver in knowledge sharing - receiver-based theory. Data collected from two case studies highlight a key role played by perceived receiver knowledge needs and behaviours in shaping sharer choices when explicit knowledge is shared. A set of receiver influences on knowledge sharing is provided that highlights key receiver and sharer issues. The paper concludes that companies should develop better ways to connect potential sharers with receivers' real knowledge needs. Further, the findings suggest that sharing on a need-to-know basis hinders change in organisational power structures, and prevents the integration of isolated pockets of knowledge that may yield new value. © 2008, IGI Global.

A Jamesonian theory of theological practice: a critical response to the work of Roland Boer

In a conjuncture marked by the “resurgence of religion,” the problem of historical materialism’s relation to religious ideologies has acquired a new urgency. The work of Roland Boer, recently awarded the Deutscher Prize for his magnum opus on Marxism and Theology poses this question from a surprising perspective. While his main claim is that religious influences in Marxist theory represent a sort of theological unconscious in historical materialism, at the same time Boer also advances an original Marxist interpretation of the Abrahamic religions, especially Christianity. This line of research, which extends from his dissertation on Jameson and Jeroboam through to his most recent work on The Sacred Economy, proposes that theology is a reflective representation of the social totality. In this article, I criticise Boer’s valorisation of theology as a practical discourse that is post-ideological but non-theoretical, and conclude by indicating an alternative.