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Article
Publication date: 1 October 1998

Leontios J. Hadjileontiadis, Dimitrios A. Patakas, Nikolaos J. Margaris and Stavros M. Panas

An automated way of revealing the diagnostic character of discontinuous adventitious sounds (DAS), i.e. crackles and squawks, by isolating them from vesicular sounds (VS), based…

274

Abstract

An automated way of revealing the diagnostic character of discontinuous adventitious sounds (DAS), i.e. crackles and squawks, by isolating them from vesicular sounds (VS), based on their nonstationarity, is presented in this paper. The proposed algorithm combines multiresolution analysis with hard thresholding in order to compose a wavelet‐based stationary‐non‐stationary filter (WTST‐NST). Applying the WTST‐NST filter to fine/coarse crackles and squawks, selected from three lung sound databases, the coherent structure of the DAS is revealed and they are separated from VS. When compared to other separation tools, in noiseless case, the WTST‐NST filter performed more accurately, objectively, and with lower computational cost. Owing to its simple implementation it can easily be used in clinical medicine.

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COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 17 no. 5
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 March 2006

Leslie E. Sekerka, Anne M. Brumbaugh, José Antonio Rosa and David Cooperrider

Organizational development and change may be initiated from two different starting points. A diagnostic approach begins with an examination of problems to assess and correct…

184

Abstract

Organizational development and change may be initiated from two different starting points. A diagnostic approach begins with an examination of problems to assess and correct dysfunction. In contrast, the Appreciative Inquiry approach begins by identifying an organization’s strengths as resources for change. An experimental study was conducted to compare the processes and outcomes that arise during the first phase of each approach. Results show that both approaches lead to different but favorable and complementary outcomes. Both participant gender and the gender construction of the dyads in which individuals participated moderate these effects in unexpected ways. The implications for understanding the processes by which both methods work, and the potential for combining them, are discussed

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International Journal of Organization Theory & Behavior, vol. 9 no. 4
Type: Research Article
ISSN: 1093-4537

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Article
Publication date: 7 October 2020

Chanho Song, Tuo Wang, Hyunjung Lee and Michael Y. Hu

The purpose of this paper is to investigate how the effects of referral rewards in referral reward programs (RRPs) are moderated through perceived social risk of a recommender.

411

Abstract

Purpose

The purpose of this paper is to investigate how the effects of referral rewards in referral reward programs (RRPs) are moderated through perceived social risk of a recommender.

Design/methodology/approach

A total of 717 consumers are accessed through Amazon's Mechanical Turk worker panel. The authors use t-test and analysis of variance to test the proposed hypotheses.

Findings

The findings show that consumers with high perceived social risk balance financial rewards with social risks, while low social risk consumers largely ignore these social risk elements surrounding a referral decision.

Originality/value

The inclusion of perceived social risk provides the opportunity to fully understand how a consumer goes about balancing social risk and referral rewards in making referral decisions. The concept of social risk has not been previously applied to this context.

Details

International Journal of Bank Marketing, vol. 38 no. 7
Type: Research Article
ISSN: 0265-2323

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