941 resultados para Alcohol Safety Action Project--New Orleans, La.


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This paper explores how retail firms from emerging markets internationalize and compete with multinational retailers from developed markets. Drawing on interviews with company managers, industry data and corporate reports, this paper provides insights into the successful internationalization process of two Chilean retailers in the Latin American region.

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The mechanisms of helicopter flight create a unique, high-vibration environment which can play havoc with the accurate operation of on-board sensors. Vibration isolation of electronic sensors from structural borne oscillations is paramount to their reliable and accurate use. Effective isolation is achieved by realising a trade-off between the properties of the suspended instrument package, and the isolation mechanism. This is made more difficult as the weight and size of the sensors and computing hardware decreases with advances in technology. This paper presents a history of the design, challenges, constraints and construction of an integrated isolated vision and sensor platform and landing gear for the CSIRO autonomous X-Cell helicopter. The results of isolation performance and in-flight tests of the platform in autonomous flight are presented.

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In this paper, we outline the sensing system used for the visual pose control of our experimental car-like vehicle, the autonomous tractor. The sensing system consists of a magnetic compass, an omnidirectional camera and a low-resolution odometry system. In this work, information from these sensors is fused using complementary filters. Complementary filters provide a means of fusing information from sensors with different characteristics in order to produce a more reliable estimate of the desired variable. Here, the range and bearing of landmarks observed by the vision system are fused with odometry information and a vehicle model, providing a more reliable estimate of these states. We also present a method of combining a compass sensor with odometry and a vehicle model to improve the heading estimate.

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AERA Distinguished Lecture, Annual Meetings of the American Educational Research Association, New Orleans, 8 April 2011. How well does educational policy, innovation and science cross borders? What are the parameters of a generalisable cultural science of education? What constitutes a principled policy 'borrowing'?

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There is worldwide interest in reducing aircraft emissions. The difficulty of reducing emissions including water vapour, carbon dioxide (CO2) and oxides of nitrogen (NOx) is mainly due from the fact that a commercial aircraft is usually designed for a particular optimal cruise altitude but may be requested or required to operate and deviate at different altitude and speeds to archive a desired or commanded flight plan, resulting in increased emissions. This is a multi- disciplinary problem with multiple trade-offs such as optimising engine efficiency, minimising fuel burnt, minimise emissions while maintaining aircraft separation and air safety. This project presents the coupling of an advanced optimisation technique with mathematical models and algorithms for aircraft emission reduction through flight optimisation. Numerical results show that the method is able to capture a set of useful trade-offs between aircraft range and NOx, and mission fuel consumption and NOx. In addition, alternative cruise operating conditions including Mach and altitude that produce minimum NOx and CO2 (minimum mission fuel weight) are suggested.

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This paper presents the results from a study of information behaviors in the context of people's everyday lives as part of a larger study of information behaviors (IB). 34 participants from across 6 countries maintained a daily information journal or diary – mainly through a secure web log – for two weeks, to an aggregate of 468 participant days over five months. The text-rich diary data was analyzed using Grounded Theory analysis. The findings indicate that information avoidance is a common phenomenon in everyday life and consisted of both passive avoidance and active avoidance. This has implications for several aspects of peoples' lives including health, finance, and personal relationships.

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Background. Digital information is increasingly becoming available on all aspects of the urban landscape, anywhere and any time. Physical objects (c.f. the Internet of Things) and people (c.f. the Social Web) are increasingly infused with actuators, sensors and tagged with a wealth of digital information. Urban Informatics explores these emerging digital layers of the city. However, very little is known about the challenges and new opportunities that these developments may offer to road users. As we gradually spend more time using our mobile devices as well as our car, the tension between appeasing our craving for connectedness and road safety requirements grow farther apart. Objective. The aims of this paper are to identify (a) new opportunities that Urban Informatics research can offer to our future cars and (b) potential benefits to road safety. Methods. 14 Urban Informatics research experts were grouped into seven teams of two to participate in a guided ideation (idea creation) workshop in a driving simulator. They were immersed into different driving scenarios to brainstorm innovative Urban Informatics applications in different driving contexts. This qualitative study was then evaluated in the context of road safety. Outcomes. There is a lack of articulation between Urban Informatics and Road Safety research. Several Urban Informatics applications (e.g., to enhance social interaction between people in urban environments) may provide benefits, rather than threats, towards road safety, provided they are implemented ergonomically and safely. Conclusions. This research initiates a much-needed dialogue between Urban Informatics and Road Safety disciplines, in the context of Intelligent Transport Systems, before the fast approaching digital wave invades our cars. The dialogue will help to avoid driver distraction issues similar to mobile phones use in cars. As such, it provides valuable information for future regulators and policy makers in charge of shaping our future road transport landscape.

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This elicitation study was designed to explore salient behavioural, normative, and control beliefs in accordance with the Theory Planned Behaviour (TPB) and in relation to drivers’ speeding behaviour in school zones. The study also explored mindfulness and habit as additional constructs in the TPB framework. The aim of this study was to identify those beliefs which influenced drivers’ speeding behaviour in school zones and thus gain greater insight into the motivating factors underpinning the behaviour which may inform interventions to reduce this behaviour. Seventeen Australian drivers participated in one of a series of focus group discussions. Overall, conceptual content analysis revealed some similar issues across the groups. In particular, highlighting the influence of behavioural and normative beliefs, there was much agreement that there were no real advantages to speeding in school zones with the behaviour considered dangerous and unacceptable and likely to also be regarded as such by important others. In addition, given the public concern about safety of school children, acknowledgment of such concern represented an important factor discouraging one’s likelihood of engaging in speeding in school zones (i.e., complying with the school zone speed limit). However, despite normative support not to speed, and the need to ensure children’s safety as an important factor discouraging speeding, the study also found that there was a tendency for drivers to report unintentionally speeding in a school zone. Instances of unintentional speeding were reported as occurring due to several reasons including a driver’s current affective state (e.g., more likely to speed in a school zone if they were in a bad mood), the extent to which they were familiar with the environment (i.e., more likely to drive mindlessly – on ‘autopilot’ - in more familiar contexts) and when feeling fatigued. The theoretical implications of including mindfulness and habit with TPB constructs and the practical implications in terms of suggested interventions are discussed.

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Robotics is a valuable tool for engaging students in the hands-on application of science, technology, engineering, and mathematics (STEM) concepts. Robotics competitions such as FIRST LEGO League (FLL) can increase students’ interest in the STEM subjects and can foster their problem solving and teamwork skills. This paper reports on a study investigating students’ perceptions on the influence of participating in a FLL competition on their learning. The students completed questionnaires regarding their perceptions of their learning during the FLL challenge and were also interviewed to gain a deeper understanding of their questionnaire responses. The results show that the students were engaged with the FLL challenge and held positive views regarding their experience. The results also suggest that students involved with the FLL challenge improved their learning about real-world applications, problem solving, engagement, communication, and the application of the technology/engineering cycle.

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This thesis investigates how modern individuals relate to themselves and others in the service of shaping their ethical conduct and governing themselves. It considers the use of online social networking sites (SNSs) as one particular practice through which people manage their day-to-day conduct and understandings of self. Current research on the use of SNSs has conceptualised them as tools for communication, information-sharing and self-presentation. This thesis suggests a different way of thinking about these sites as tools for self-formation. A Foucaultian genealogical, historical and problematising approach is applied in order to explore processes of subjectivation and historical backgrounds involved in the use of SNSs. This is complimented with an ANT-based understanding of the role that technologies play in shaping human action. Drawing new connections between three factors will show how they contribute to the ways in which people become selves today. These factors are, one, the psychologisation and rationalisation of modern life that lead people to confess and talk about themselves in order to improve and perfect themselves, two, the transparency or publicness of modern life that incites people to reveal themselves constantly to a public audience and, three, the techno-social hybrid character of Western societies. This thesis will show how some older practices of self-formation have been translated into the context of modern technologised societies and how the care of self has been reinvigorated and combined with the notion of baring self in public. This thesis contributes a different way of thinking about self and the internet that does not seek to define what the modern self is and how it is staged online but rather accounts for the multiple, contingent and historically conditioned processes of subjectivation through which individuals relate to themselves and others in the service of governing their daily conduct.