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Incident data about disruptions to the electric power grid provide useful information that can be used as inputs into risk management policies in the energy sector for disruptions from a variety of origins, including terrorist attacks. This article uses data from the Disturbance Analysis Working Group (DAWG) database, which is maintained by the North American Electric Reliability Council (NERC), to look at incidents over time in the United States and Canada for the period 1990-2004. Negative binomial regression, logistic regression, and weighted least squares regression are used to gain a better understanding of how these disturbances varied over time and by season during this period, and to analyze how characteristics such as number of customers lost and outage duration are related to different characteristics of the outages. The results of the models can be used as inputs to construct various scenarios to estimate potential outcomes of electric power outages, encompassing the risks, consequences, and costs of such outages. 相似文献
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Betsy Appleton Barbara Birenbaum Angel Clemons Alice Essinger Tonia Graves Glenda Griffin Maureen James Pamela Slone Klinepeter Apryl Price Sharon A. Purtee Toni Katz Kurt Blythe 《Serials Review》2008,34(4):300-307
A busy time for librarians was late May through early July 2008 with the Ohio Valley Group of Technical Services Librarians meeting May 14–16, the North American Serials Interest Group meeting June 5–8, and an American Library Association preconference Electronic Serials 101: What I Wished I’d Known Before I Got in Over My Head, June 27. 相似文献
44.
Zebehazy KT Zimmerman GJ Bowers AR Luo G Peli E 《Journal of visual impairment & blindness》2005,99(10):663-670
In preparation for an evaluation of night vision devices, an exploratory study was conducted to gain initial experience with the sensitivity of chosen mobility measures under night conditions. The measures included cane contacts and object recognition distances. Results provide preliminary evidence that these two measures may be sensitive to the effects of a night vision device. 相似文献
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Holly S. Schindler 《Journal of marriage and the family》2010,72(2):318-332
This study explores the relationship between residential, biological fathers' parental engagement, financial contributions, and psychological well‐being in 2‐parent families. Specifically, this study focuses on how fathers' parental engagement and financial contributions are related to their self‐esteem, self‐efficacy, and psychological distress. Analyses utilize data from the first 2 waves of the Panel Study of Income Dynamics' Child Development Supplement and employ a subsample of father‐child pairs (N = 771). The most consistent finding was that fathers' engagement in parenting and financial contributions to the family predicted improvements in fathers' psychological well‐being. On the other hand, the results found very limited support for the more common proposition that healthy psychological functioning promotes increases in fathers' parental engagement and financial contributions. 相似文献
47.
Eric D. Raile PhD Sarah J. Swierenga PhD Toni A. Dennis BS Lauren A. Swanson-Aprill MA Lori A. Post PhD Fuad Abujarad PhD 《Journal of elder abuse & neglect》2018,30(1):75-92
Decision makers face difficult choices when tasked with identifying and implementing appropriate mechanisms for protecting the elderly and other vulnerable adults from abuse. A pilot project involving fingerprint-based criminal history background checks for personal care workers in Michigan has supplied an opportunity to examine one such mechanism. In conjunction with the pilot project, we have conducted a stakeholder analysis with the aim of informing decision makers about stakeholder perceptions of standard policy criteria like effectiveness, efficiency, and equity. We employed focus groups and a Web-based survey to collect data from stakeholders. While stakeholders generally see fingerprint-based background checks for personal care workers as potentially effective and as a net benefit, they also point to a variety of contingencies. They also recognize difficulties and constraints for government involvement. This preliminary analysis provides solid foundational information for decision makers and for more extensive benefit–cost analysis. 相似文献
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Statistics and Computing - Bayesian cubature provides a flexible framework for numerical integration, in which a priori knowledge on the integrand can be encoded and exploited. This additional... 相似文献
49.
Vivienne C. Ivory Kai O'Donnell Mirjam Schindler 《Kōtuitui : New Zealand Journal of Social Sciences Online》2019,14(1):95-111
Gaining useful information about our built, social and natural environments is vital and possible. The value of data for cities is more informed, more effective management and development choices resulting in more benefits to a greater range of stakeholders. This article explores the state-of-play of data infrastructures in New Zealand to identify the challenges to gaining better value from geospatial information. Following engagement with built environment data custodians and information users, it analyses how digital information infrastructure can support the sharing and use of richer and more comprehensive information by weaving a supportive fabric across data. The analysis reveals that data infrastructures primarily need to facilitate agreement on data management, sharing and use; the sharing of costs and benefits across stakeholders; and emphasise place as a powerful driver to richer information. An overarching sociotechnical approach to digital information infrastructure weaves data platforms, policy and technology together. 相似文献
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It has been argued in the literature that business strategy and manufacturing flexibility independently affect the performance of an organization. However, no empirical examination of the interrelationship among these three constructs has been performed. In this paper, based on a field study of 269 firms in the manufacturing industry, the identified constructs have been used to test a theoretical model using path analysis techniques. Our results indicate that business strategy contributes both directly and indirectly to organizational performance. The findings provide evidence of direct effects of (i) business strategy on manufacturing flexibility and (ii) manufacturing flexibility on organizational performance. 相似文献