321 research outputs found

    Are Drivers\u27 Manuals Understandable?

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    In 1984, researchers determined that the readability of state drivers\u27 manuals exceeded the average literacy levels in the United States. Because text complexity threatened the ability of license applicants and practicing drivers to understand the information presented in the manuals, a potential safety risk was indicated. This study analyzes recent editions of the manuals using readability formulas and formal text presentation ratings. It was found that the average difficulty of the drivers\u27 manuals was reduced by more than one grade level and that the 1994 manuals are clearly superior to their earlier versions, but that, in the interest of highway safety, improvements should still be sought

      305  Reflections: Remade, Reworked, Reimagined: Sally Brown talks about place

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    For quite a long time it has been claimed that cultural production in Tasmania has an inimitable and idiosyncratic place within the scheme of things. Sally Brown, a young Tasmanian designer, maker, artist, is unlikely to make this kind of claim for her work. Nonetheless, there is a particular sensibility evident in her work that it is doubtful that one might find anywhere other than in Tasmania – or made by someone of an older generation. This paper attempts to unpick, through four reflections upon Sally’s work, some of the thinking to do with the placedness, the vernacular social paradigm, the subliminal politics, the ‘crafting’ and the cultural savvy that gives Sally Brown’s work its presence. The questions that hang in the air around a collection of Sally Brown’s work are those to do with the ways local cultural imperatives might shape and make places they are found in, and in what ways might places shape the cultural realities that inhabit them. The following reflections on Sally’s work are distilled from email and blog conversations

    Most Asked Agronomic Questions

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    Exact date of bulletin unknown.PDF pages: 4

    Comparing Credibility: A Website versus Publicity

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    Websites and publicity in mass media are two commonly used marketing elements. However, it is unclear whether exposure to a website or publicity is most effective at influencing behavior. This research compares the effectiveness of a magazine publicity article and a tourism destination website on the choice of a spring break destination. Based on this analysis, a website is no more credible than a publicity article; nor does an Internet site create a more favorable attitude or greater purchase intent than does magazine-based publicity. Magazine articles emerged as equally effective as websites for most variables. This study shows that traditional magazine articles can still influence Millennials. Even with a study population of college students who use web resources more than most other populations, the web was not superior. This study reveals that both publicity and a website are important parts of the tourism marketing mix and suggests specific applications

    Protoporphyrin IX Fluorescence Photobleaching Increases with the Use of Fractionated Irradiation in the Esophagus

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    Fluorescence measurements have been used to track the dosimetry of photodynamic therapy (PDT) for many years, and this approach can be especially important for treatments with aminolevulinic-acid-induced protoporphyrin IX (ALA-PpIX). PpIX photobleaches rapidly, and the bleaching is known to be oxygen dependent, and at the same time, fractionation or reduced irradiance treatments have been shown to significantly increase efficacy. Thus, in vivo measurement of either the bleaching rate and/or the total bleaching yield could be used to track the deposited dose in tissue and determine the optimal treatment plans. Fluorescence in rat esophagus and human Barrett\u27s esophagus are measured during PDT in both continuous and fractionated light delivery treatment, and the bleaching is quantified. Reducing the optical irradiance from 50 to 25 mW/cm did not significantly alter photobleaching in rat esophagus, but fractionation of the light at 1-min on and off intervals did increase photobleaching up to 10% more (p value=0.02) and up to 25% more in the human Barrett\u27s tissue (p value\u3c0.001). While two different tissues and two different dosimetry systems are used, the data support the overall hypothesis that light fractionation in ALA-PpIX PDT esophageal treatments should have a beneficial effect on the total treatment effect

    NASA's first in-space optical gyroscope: A technology experiment on the X ray Timing Explorer spacecraft

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    A technology experiment on the X-ray Timing Explorer spacecraft to determine the feasibility of Interferometric Fiber Optic Gyroscopes for space flight navigation is described. The experiment consists of placing a medium grade fiber optic gyroscope in parallel with the spacecraft's inertial reference unit. The performance of the fiber optic gyroscope will be monitored and compared to the primary mechanical gyroscope's performance throughout the two-year mission life

    Arrive, survive and thrive: essential stages in the re-colonization and recovery of zooplankton in urban lakes in Sudbury, Canada

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    The recovery of lakes from severe, historical acid and metal pollution requires that colonists of extirpated species arrive, survive and subsequently thrive. We employed 40 year records from weekly to monthly crustacean zooplankton samples from Middle and Clearwater lakes near Sudbury, Canada, to identify the main mechanistic bottlenecks in this recovery process. While both lakes now have circum-neutral pH, acidity decreased more rapidly in Middle Lake because of past liming interventions, while Clearwater Lake, being larger and supporting more housing, likely receives more zooplankton colonists than Middle Lake. Community richness increased much faster in Middle Lake than in Clearwater Lake, at 1.6 vs 0.9 species decade-1, respectively. Richness has recovered in Middle Lake, when assessed against a target of 9-16 species collection-1 determined from regional reference lakes, but it has not yet recovered in Clearwater Lake. Species accumulation curves and a metric of annual persistence show that this difference is a product not of greater rates of species introduction into Middle Lake, but rather to their greater annual persistence once introduced. Greater annual persistence was associated with better habitat quality (i.e., lower acid and metal toxicity) in Middle Lake, particularly early in the record, and lower planktivore abundance, more recently. These results support a growing consensus that ecological recovery of zooplankton from acidification and metal pollution does not depend strongly on propagule introduction rates which are adequate, but rather on propagule persistence, in lake-rich, suburban landscapes such as those near Sudbury
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