981 resultados para Tim O’Brien


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APPENDIX A : PAVEMENT QUALITY (Zhanmin Zhang, Michael R. Murphy, Robert Harrison), 7 pages -- APPENDIX B : BRIDGE QUALITY (Jose Weissmann, Angela J. Weissmann), 6 pages -- APPENDIX C : URBAN TRAFFIC CONGESTION (Tim Lomax, David Schrank), 32 pages -- APPENDIX D: RURAL CORRIDORS (Tim Lomax, David Schrank), 6 pages -- APPENDIX E: ADDITIONAL REVENUE SOURCE OPTIONS FOR PAVEMENT AND BRIDGE MAINTENANCE (Mike Murphy, Seokho Chi, Randy Machemehl, Khali Persad, Robert Harrison, Zhanmin Zhang), 81 pages -- APPENDIX F: FUNDING TRANSPORTATION IMPROVEMENTS (David Ellis, Brianne Glover, Nick Norboge, Wally Crittenden), 19 pages -- APPENDIX G: ESTIMATING VEHICLE OPERATING COSTS AND PAVEMENT DETERIORATION (by Robert Harrison), 4 pages

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This paper presents an approach for the automatic calibration of low-cost cameras which are assumed to be restricted in their freedom of movement to either pan or tilt movements. Camera parameters, including focal length, principal point, lens distortion parameter and the angle and axis of rotation, can be recovered from a minimum set of two images of the camera, provided that the axis of rotation between the two images goes through the camera’s optical center and is parallel to either the vertical (panning) or horizontal (tilting) axis of the image. Previous methods for auto-calibration of cameras based on pure rotations fail to work in these two degenerate cases. In addition, our approach includes a modified RANdom SAmple Consensus (RANSAC) algorithm, as well as improved integration of the radial distortion coefficient in the computation of inter-image homographies. We show that these modifications are able to increase the overall efficiency, reliability and accuracy of the homography computation and calibration procedure using both synthetic and real image sequences

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Siblings play an important role in children’s learning and development. Interactions with brothers and sisters provide opportunities to learn about sharing and emotional reciprocity, to develop social skills, to express thoughts and feelings, and to practise resolving conflict. But for children whose brother or sister has a disability, such as a rare chromosome disorder, some of these sibling experiences may be different. Many parents worry about how their non-disabled child will be affected by the experience of living with a brother or sister with a disability, and a great deal of research has explored both the possible negative consequences and also the potential benefits for siblings. In this article, we summarise the research findings and provide suggestions for ways that parents can support the positive development and well-being of all their children.

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Description ‘The second volume of the Handbook on the Knowledge Economy is a worthy companion to the highly successful original volume published in 2005, extending its theoretical depth and developing its coverage. Together the two volumes provide the single best work and reference point for knowledge economy studies. The second volume with fifteen original essays by renowned scholars in the field, provides insightful and robust analyses of the development potential of the knowledge economy in all its aspects, forms and manifestations.’ – Michael A. Peters, University of Illinois, US

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In this 25th year of publication of the Accounting Research Journal we pay tribute to the efforts of the dedicated Editors who have successfully guided and developed the journal since its inception in 1988. After the rapid growth in accounting and finance research in the 1970s and 1980s the absence of outlets in Asia-Pacific region to publish novel, timely and applied research became increasingly apparent. In response to this gap, ARJ’s first volume was published in 1988 by the School of Accountancy at the Queensland Institute of Technology (QIT), which became the Queensland University of Technology (QUT) in the following year. The founding Editor was Myles McGregor-Lowndes and his editorship continued for three years until Scott Holmes took over as Editor in 1991. In 1992, Robert Faff joined Scott Holmes as Joint Editor, and their joint editorship continued for six years until Robert Faff took the reins as Editor in 1998. At that time Scott remained as Associate Editor and the editorial team was joined by Roger Willett as Consulting Editor and Chris Lambert as Associate Editor. This arrangement continued until 2002 when Tim Brailsford was newly appointed as Managing Editor. The editorship returned to QUT in 2008 and was taken on by Chris Ryan with our support as Co-editors. Since 2011 we have been the Joint Editors. Table 1 lists the individuals who have been involved in editing ARJ over the 25-year period and their roles...

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Debates over the role and relevance of what has been described as citizen journalism have existed at least since the late 1990s; positions have ranged from the fulsome dismissal of such bottom-up journalism activities (and indeed, almost all user-led content creation) as being part of a new "cult ofthe amateur" (Keen, 2007) to nearly equally simplistic perspectives which predicted citizen journalists would replace the mainstream journalism industry within a short timeframe. A more considered, more realistic perspective would take a somewhat more moderate view. Aided by circumstances including the long-term financial crisis enveloping journalism industries in many developed nations, the creeping corporatization and politicization of journalistic activities in democratic and non-democratic countries alike, and the largely unmet challenge of new, Internet-based media fonns, citizen journalism (as well as other parajournalistic media, including TV comedy such as The Daily Show) has been able to make credible inroads into what used to be the domain of journalism proper.

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The purpose of this chapter is to discuss the relationship between crime and morality, with a specific focus on crimes against morality. While we argue that all crimes have a general moral basis, condemned as ‘wrong’ or ‘bad’ and proscribed by a society, there is a specific group of offences in modern democratic nations labelled crimes against morality. Included within this group are offences related to prostitution, pornography and homosexuality. What do these crimes have in common? Most clearly they tend to have a sexual basis and are often argued to do sexual harm, in both a moral and/or psychological sense, as well as physically. Conversely they are often argued to be victimless crimes, especially when the acts occur between consenting adults. Finally, they are considered essentially private acts but they often occur and, are regulated, in the public domain. Most importantly, each of these crimes against morality has only relatively recently (i.e. in the past 150 years) become identified and regulated by the state as a criminal offence. First, we discuss philosophically the issue of morality and its historical relationship to Christianity, especially with regard to the issue of prostitution. Second, we examine the relationship between public and private morality and how this distinction regulates licit and illicit sex in our society through the example of homosexuality. Finally we discuss the notion of the victimless crime through the example of pornography.

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The purpose of this chapter is to discuss the relationship between crime and morality, with a specific focus on crimes against morality. While we argue that all crimes have a general moral basis, condemned as ‘wrong’ or ‘bad’ and proscribed by a society, there is a specific group of offences in modern democratic nations labelled ‘crimes against morality’. Included within this group are offences related to prostitution, pornography and homosexuality. What do these crimes have in common? Most clearly they tend to have a sexual basis and are often argued to do sexual harm, in both a moral and/or psychological sense, as well as physically. Conversely in some cases they are argued to be victimless crimes, especially when the acts occur between consenting adults. Finally, they are considered essentially private acts but they often occur, and are regulated, in the public domain. Most importantly, each of these crimes against morality has only relatively recently (i.e. in the past 150 years) become identified and regulated by the state as a criminal offence. First, we discuss philosophically the nexus between sex, crime and morality, especially with regard to the issue of prostitution. Second, we examine the relationship between public and private morality and how this dis¬tinction regulates licit and illicit sex in our society through the example of homosexuality. Finally we discuss the notion of sex as harm through the example of pornography.

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New substation automation applications, such as sampled value process buses and synchrophasors, require sampling accuracy of 1 µs or better. The Precision Time Protocol (PTP), IEEE Std 1588, achieves this level of performance and integrates well into Ethernet based substation networks. This paper takes a systematic approach to the performance evaluation of commercially available PTP devices (grandmaster, slave, transparent and boundary clocks) from a variety of manufacturers. The ``error budget'' is set by the performance requirements of each application. The ``expenditure'' of this error budget by each component is valuable information for a system designer. The component information is used to design a synchronization system that meets the overall functional requirements. The quantitative performance data presented shows that this testing is effective and informative. Results from testing PTP performance in the presence of sampled value process bus traffic demonstrate the benefit of a ``bottom up'' component testing approach combined with ``top down'' system verification tests. A test method that uses a precision Ethernet capture card, rather than dedicated PTP test sets, to determine the Correction Field Error of transparent clocks is presented. This test is particularly relevant for highly loaded Ethernet networks with stringent timing requirements. The methods presented can be used for development purposes by manufacturers, or by system integrators for acceptance testing. A sampled value process bus was used as the test application for the systematic approach described in this paper. The test approach was applied, components were selected, and the system performance verified to meet the application's requirements. Systematic testing, as presented in this paper, is applicable to a range of industries that use, rather than develop, PTP for time transfer.

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Australia is rich in renewable energy resources such as wind, solar and geothermal. Geographical diversity of these renewable resources combined with developing climate change policies poses a great challenge for the long term interconnection planning. Intermittency of wind and solar potentially driving the development of new transmission lines bring additional complexity to power system operations and planning. This paper provides an overview of generation and transmission planning studies in Australia to meet 20% renewable energy target by 2020. Appraisal of the effectiveness of dispersed energy storage, non schedulable peaking plants, wide area controls and demand management techniques to aid the penetration of renewables is presented in this paper

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Wound healing involves a complex series of biochemical events and has traditionally been managed with 'low tech' dressings and bandages. The concept that diagnostic and theranostic sensors can complement wound management is rapidly growing in popularity as there is tremendous potential to apply this technology to both acute and chronic wounds. Benefits in sensing the wound environment include reduction of hospitalization time, prevention of amputations and better understanding of the processes which impair healing. This review discusses the state-of-the-art in detection of markers associated with wound healing and infection, utilizing devices imbedded within dressings or as point-of-care techniques to allow for continual or rapid wound assessment and monitoring. Approaches include using biological or chemical sensors of wound exudates and volatiles to directly or indirectly detect bacteria, monitor pH, temperature, oxygen and enzymes. Spectroscopic and imaging techniques are also reviewed as advanced wound monitoring techniques. The review concludes with a discussion of the limitations of and future directions for this field.

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This conceptual paper explores the extent to which reported accounting information captures unique family firm decision-making and intangible asset factors that impact financial value. We review the family firm valuation-relevant literature and identify that this body of research is predicated on the assumption that accounting information reflects the underlying reality of family firms. This research, however, fails to recognise that current accounting technology does not fully recognise the family firm factors in the book value of the firm or the implications for long run persistence of earnings. Thus, valuation models underpinning the extant empirical research, which are predicated on reported accounting information, may not fully reflect the intrinsic value of family firms. We present propositions on the interaction between accounting information, family factors and valuation as a road map for future empirical research with a discussion of appropriate methodologies.