2,785 research outputs found

    Why be first if it doesn’t pay? The case of early adopters of C-TPAT supply chain security certification

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    Purpose The purpose of this paper is to focus on adoption of certified management standards, specifically public standards. Such standards play an increasingly important role in today’s business environment. However, to generate adoption benefits, they must be first widely accepted – a situation where they have become viewed as the de facto norms. For this state to occur early adopters play a critical role. Past research has argued that early adopters, in exchange for assuming more risk, are rewarded with higher economic returns. Yet, these findings are based on private, not public standards. With public standards, early adopters do not receive such benefits. There is evidence that public standards are becoming more important. This situation leads to a simple but important question addressed in this study – if early adopters assume the risks of embracing a new public standard without economic benefits, then what is their motivation? To resolve this question, this study draws on agency theory and prospect theory. The authors argue that early adopters embrace such standards because of their desire to minimize risk resulting from failure to support the goal at the heart of the public standards. Design/methodology/approach Data were obtained from the Customs-Trade Partnership Against Terrorism (C-TPAT) Partners Cost Benefit Survey and analyzed through structural equation modeling. Findings Early adopters of public standards are not driven by economic benefits but rather by the need to minimize their exposure to the risks associated with failing to satisfy the goals associated with a public standard. In other words, they were motivated by the need to minimize costs. In the case of C-TPAT, these costs are those of failing to provide or improve network security. Research limitations/implications This study has shed new light on the standards adoption process by clarifying the specific motivations that drive early adoption of a public standard. In addition to identifying the loss aversion motives of early adopters and economic benefit motives of later adopters, the authors have also elaborated on the notion that standards have differing levels of precedence, particularly when comparing private with public standards. Practical implications In a world characterized by increasing demands for outcomes such as improved security and where governmental funding is falling, due to growing deficits and governments that are becoming more conservative, the authors expect the use of public standards to increase. Originality/value Different from prior research on private standard, the paper focuses on the organizations involved in the adoption and diffusion of a public standard, with special attention being devoted to the early adopters. The paper provides a theoretical explanation for the actions of early adopters of a public standard through the theoretical lens of prospect theory

    Alternative contingency table measures improve the power and detection of multifactor dimensionality reduction

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    <p>Abstract</p> <p>Background</p> <p>Multifactor Dimensionality Reduction (MDR) has been introduced previously as a non-parametric statistical method for detecting gene-gene interactions. MDR performs a dimensional reduction by assigning multi-locus genotypes to either high- or low-risk groups and measuring the percentage of cases and controls incorrectly labelled by this classification – the classification error. The combination of variables that produces the lowest classification error is selected as the best or most fit model. The correctly and incorrectly labelled cases and controls can be expressed as a two-way contingency table. We sought to improve the ability of MDR to detect gene-gene interactions by replacing classification error with a different measure to score model quality.</p> <p>Results</p> <p>In this study, we compare the detection and power of MDR using a variety of measures for two-way contingency table analysis. We simulated 40 genetic models, varying the number of disease loci in the model (2 – 5), allele frequencies of the disease loci (.2/.8 or .4/.6) and the broad-sense heritability of the model (.05 – .3). Overall, detection using NMI was 65.36% across all models, and specific detection was 59.4% versus detection using classification error at 62% and specific detection was 52.2%.</p> <p>Conclusion</p> <p>Of the 10 measures evaluated, the likelihood ratio and normalized mutual information (NMI) are measures that consistently improve the detection and power of MDR in simulated data over using classification error. These measures also reduce the inclusion of spurious variables in a multi-locus model. Thus, MDR, which has already been demonstrated as a powerful tool for detecting gene-gene interactions, can be improved with the use of alternative fitness functions.</p

    United States Senate Catalogue of Graphic Art

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    This volume is the first comprehensive publication of the almost one thousand prints in the holdings of the United States Senate. The collection represents a 30-year effort to document graphically the 19th and early 20th century history of the Senate, the Capitol, and American political history. The diverse illustrations range from inauguration ceremonies and impeachment trials to senatorial portraits and political cartoons. Represented in the Senate\u27s graphic art collection are some of the most notable artists who worked in the printmaking medium: Augustus Kallner, Rembrandt Peale, Alexander Hay Ritchie, Thomas Nast, and Joseph Keppler. While visually engaging, these prints also are important primary historical records. By carefully scrutinizing a print, in the same way a historian might analyze a journal or diary, one can extract the meaning of the artist and decode the historical subtext. Often, the elements omitted by the artist in an image are just as important as those that are included. As a research tool, the graphic art collection has been invaluable to historians and scholars for many years. This publication seeks to broaden the appeal of the collection by making the information available to a wider audience. Essays by Senate Curator Diane K. Skvarla and Associate Senate Historian Donald A. Ritchie provide an overview of the collection, with selected prints highlighted throughout the book. This is the second volume dedicated to the Senate\u27s art and historic collections. In 2002 the Senate published the United States Senate Catalogue of Fine Art, presenting the 160 paintings and sculptures in the Senate\u27s fine art collection

    Transforming community prevention systems for sustained impact: embedding active implementation and scaling functions

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    Traditional efforts to translate evidence-based prevention strategies to communities, at scale, have not often produced socially significant outcomes or the local capacity needed to sustain them. A key gap in many efforts is the transformation of community prevention systems to support and sustain local infrastructure for the active implementation, scaling, and continuous improvement of effective prevention strategies. In this paper, we discuss (1) the emergence of applied implementation science as an important type 3–5 translational extension of traditional type 2 translational prevention science, (2) active implementation and scaling functions to support the full and effective use of evidence-based prevention strategies in practice, (3) the organization and alignment of local infrastructure to embed active implementation and scaling functions within community prevention systems, and (4) policy and practice implications for greater social impact and sustainable use of effective prevention strategies

    Boron Phosphate and Aluminum Phosphate Aerogels

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    Anhydrous sol-gel condensation of triethyl phosphate [(CH3CH2O)3PO] with boron trichloride (BCL3 ) or triethyl aluminum [(CH3CH2 ) 3A1] in organic solvents, led to formation of metallophosphate gels. The pore fluid of the gels was removed under supercritical conditions in a pressurized vessel to form aerogels. The aerogels were then calcined at progressively higher temperatures to produce high surface area phosphates. Since the initial gel reagent mixtures contained several NMR active nuclei, the condensation chemistry prior to the gel point was monitored by solution nB NMR. The surface areas, distribution of pore sizes, and total pore volumes of the aerogel products were determined using nitrogen gas physisorption methods

    Ariel - Volume 8 Number 2

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    Executive Editor James W. Lockard , Jr. Issue Editor Doug Hiller Business Manager Neeraj K. Kanwal University News Richard J. Perry World News Doug Hiller Opinions Elizabeth A. McGuire Features Patrick P. Sokas Sports Desk Shahab S. Minassian Managing Editor Edward H. Jasper Managing Associate Brenda Peterson Photography Editor Robert D. Lehman, Jr. Graphics Christine M. Kuhnl
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