1,352 research outputs found

    The New Airport and its Urban Region: Evaluating Transport Linkages

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    Privatized airports are emerging as significant transportation and logistics hubs competing with traditional CBDs as activity centres with significant environmental, social and economic impacts. The major implications for transportation planning and evaluation of options have been highlighted as: the difficulty in arriving at an agreed set of relative weights to be attached to each objective; the need to undertake any interface analysis at the regional scale; the need to model the complex nature of the interaction between mixed land use activities within the emerging airport precinct and the supply, pricing and regulation of the relevant transportation links; and the relevance of 'option value' concepts when evaluating transit access to airports

    Online Trust & Internet Entrepreneurs: A Kantian Approach

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    Being a successful entrepreneur often requires long hours. Competing on the internet adds the intense “hypercompetitive” nature of this fast paced environment. As a result of all these time pressures, most online entrepreneurs are not giving important ethical decisions their adequate consideration as they release new products and services. Additionally, the academic entrepreneurship literature does not provide any reference for these entrepreneurs to actively ensure they are acting responsibly as they innovate. The paper attempts to fill in this hole by answering answer the question “What constitutes responsible behavior for internet entrepreneurs?” Employing lessons from Immanuel Kant and John Rawls, we have come up with an internet model of online behavior based on respectfulness, transparency and universalizability. Ultimately this model is used to update the FCC’s Information Practice Principles with select additions to help guide internet entrepreneurs

    Decoding Cities to Model, Assess and Redesign them as Complex Urban Systems

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    The complexity of cities presents a key challenge in being able to ‘decode‘ and subsequently measure or describe them. Adding to these challenges is the transdisciplinary nature of city design which largely accords to disciplinary silos. This research argues that successful city design can benefit from understanding cities as complex sociotechnical systems – considering the interaction between humans, technology and the environment. This paper provides a precis of a programme of research which utilised the results of an international survey to ‘decode’ and construct a systems model of a main street to help understand andappropriately respond to city complexity. The research uses subject matter expert knowledge and insights from 70 survey participants, across 5 continents, to model an archetype main street. The project describes and models hundreds of physical objects, priority measures and main street functions with linkages between these components. The model allows for the exploration and measurement of a range of both technical characteristics such as engineering standards, as well as the influence and outcomes of necessary subjective measures like, user experience. It was able to provide an insight about which characteristics are critical to the city system, how they are delivered and why they are important - from a transdisciplinary perspective. This paper also highlights the work done to identify the relationships between the physical objects of a main street. Further details of the research programme are highlighted in the conclusions, including how the archetype model was used to explore the performance of a main street case study, identify missing components and locate them with consideration of their optimal proximity to other related features. Weargue that this innovative approach may provide a more structured and process driven exploration of city design

    Creating Competetive Advantage Using the Internet in Primary Sector Industrie

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    The research reported in this paper involved an investigation of the relationship between Internet strategy development and competitive advantage. Four theory-based propositions based on the work of Porter and Millar (1985) and others are examined in relation to four primary sector multinationals. These propositions examine the relationship between an industry's Internet strategy and the integration of this strategy into the industry's marketing infrastructure to support the development of competitive advantage. The study uses Porter's (1985) value system framework to examine this relationship. The authors suggest that the value system, and the leverage of information and networking technologies to reconfigure value system relationships is becoming strategically significant to these primary sector multinationals

    Weakness in the ICU: a call to action

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    Muscle weakness is prevalent in critically ill patients and can have a dramatic effect on short- and long-term outcomes, yet there are currently no interventions with proven efficacy in preventing or treating this complication. In a new randomized trial, researchers found that serial electrical muscle stimulation significantly mitigated ultrasound-defined muscle atrophy, and the treatment was not linked to adverse effects. Although preliminary, these results, together with other recent studies, indicate a paradigm shift to a proactive approach in managing neuromuscular complications in the ICU

    Statistical Challenges in Online Controlled Experiments: A Review of A/B Testing Methodology

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    The rise of internet-based services and products in the late 1990's brought about an unprecedented opportunity for online businesses to engage in large scale data-driven decision making. Over the past two decades, organizations such as Airbnb, Alibaba, Amazon, Baidu, Booking, Alphabet's Google, LinkedIn, Lyft, Meta's Facebook, Microsoft, Netflix, Twitter, Uber, and Yandex have invested tremendous resources in online controlled experiments (OCEs) to assess the impact of innovation on their customers and businesses. Running OCEs at scale has presented a host of challenges requiring solutions from many domains. In this paper we review challenges that require new statistical methodologies to address them. In particular, we discuss the practice and culture of online experimentation, as well as its statistics literature, placing the current methodologies within their relevant statistical lineages and providing illustrative examples of OCE applications. Our goal is to raise academic statisticians' awareness of these new research opportunities to increase collaboration between academia and the online industry

    Evaluation of a Smart Alarm for Intensive Care Using Clinical Data

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    We describe and report the results of an evaluation of a smart alarm algorithm for post coronary artery bypass graft (CABG) patients. The algorithm (CABG-SA) was applied to vital sign data streams recorded in a surgical intensive care unit (SICU) at a hospital in the University of Pennsylvania Health System. In order to determine the specificity of CABGSA, the alarms generated by CABG-SA were compared against the actual interventions performed by the staff of the critical care unit. Overall, CABG-SA alarmed for 55% of the time relative to traditional alarms while still generating alarms for 12 of the 13 recorded interventions

    An Overview of Enhancing Distance Learning Through Augmented and Virtual Reality Technologies

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    Although distance learning presents a number of interesting educational advantages as compared to in-person instruction, it is not without its downsides. We first assess the educational challenges presented by distance learning as a whole, and identify 4 main challenges that distance learning currently presents as compared to in-person instruction: the lack of social interaction, reduced student engagement and focus, reduced comprehension and information retention, and the lack of flexible and customizable instructor resources. After assessing each of these challenges in-depth, we examine how AR/VR technologies might serve to address each challenge along with their current shortcomings, and finally outline the further research that is required to fully understand the potential of AR/VR technologies as they apply to distance learning.Comment: 12 pages, 7 figures, submitted to TVC
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