1,559 research outputs found

    Winter ozone formation and VOC incremental reactivities in the Upper Green River Basin of Wyoming

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    The Upper Green River Basin (UGRB) in Wyoming experiences ozone episodes in the winter when the air is relatively stagnant and the ground is covered by snow. A modeling study was carried out to assess relative contributions of oxides of nitrogen (NO_x) and individual volatile organic compounds (VOCs), and nitrous acid (HONO) in winter ozone formation episodes in this region. The conditions of two ozone episodes, one in February 2008 and one in March 2011, were represented using a simplified box model with all pollutants present initially, but with the detailed SAPRC-07 chemical mechanism adapted for the temperature and radiation conditions arising from the high surface albedo of the snow that was present. Sensitivity calculations were conducted to assess effects of varying HONO inputs, ambient VOC speciation, and changing treatments of temperature and lighting conditions. The locations modeled were found to be quite different in VOC speciation and sensitivities to VOC and NO_x emissions, with one site modeled for the 2008 episode being highly NO_x-sensitive and insensitive to VOCs and HONO, and the other 2008 site and both 2011 sites being very sensitive to changes in VOC and HONO inputs. Incremental reactivity scales calculated for VOC-sensitive conditions in the UGRB predict far lower relative contributions of alkanes to ozone formation than in the traditional urban-based MIR scale and that the major contributors to ozone formation were the alkenes and the aromatics, despite their relatively small mass contributions. The reactivity scales are affected by the variable ambient VOC speciation and uncertainties in ambient HONO levels. These box model calculations are useful for indicating general sensitivities and reactivity characteristics of these winter UGRB episodes, but fully three-dimensional models will be required to assess ozone abatement strategies in the UGRB

    Norm Shifts in Union Wages: Will 1989 Be a Replay of 1969?

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    macroeconomics, union wages, 1989

    Kant Crisis

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    This study approaches the last days of Immanuel Kant through the lens of his contemporary biographers and other correspondents. Among the latter, Kant’s brother and, subsequently, his brother’s family provide a symptomatic reflection upon Kant’s management of his genealogy and his legacy. Yet behind this body of work is another corpus, one which embodies maternal and paternal legacies that are not readily subsumed by Oedipus or Kant’s philosophy. This work (of art) is Kant’s own body or corpus, which he painstakingly maintained and which provided a case study for his refelctions on preventive medicine in The Conflict of the Faculties

    Review of Geld und Magie: Eine okonomische Deutung von Goethes Faust

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    The first thing that must be said about this book is that, despite the claim that it is a “vollständig überarbeitete Ausgabe,” this is simply not the case. Although the subtitle may have changed (originally “Deutung und Kritik der modernen Wirtschaft anhand von Goethes Faust”), the story it tells twenty years later remains in effect the same. I shall return to the significance of this for those of us interested in Goethe Age economics, but first I will address Binswanger’s argument, the additions made to the second edition, and the value of this type of economic commentary on Goethe and Faust

    Faust\u27s Begehren: Revisiting the History of Political Economy in Faust II

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    Since The Publication of Faust II, commentators interested in economic aspects of the text have focused primarily on three of its five acts. Bernd Mahl, whose work on Goethe’s economic knowledge remains a standard reference, writes that the topics most frequently addressed following its publication are the creation of paper money in act 1, Faust’s renewed activity in act 4, and the commercial ventures of Faust and Mephistopheles in act 5.1 More recent investigations have generally continued this trend.2 Given this lengthy history of interpretation, what is one to make of the second and third acts of Faust II with respect to economic matters? In the “Ökonomische Lesart” (Economic Reading) section of his Faust commentary, Ulrich Gaier offers this assessment: “Angesichts der Tatsache, daß sich der 2. und 3. Akt in Fausts Kopf abspielen, kann es hier nicht um reales Wirtschaften in der geschichtlichen Folge des Wirtschaftsgebarens der Neuzeit gehen”3 (Given the fact that acts 2 and 3 are acted out in Faust’s head, real economic activity resulting historically from economic behavior in the modern era cannot be at stake here). While Gaier accurately describes the tendency of literary and economic analyses of Faust II—including his own—to focus on the other three acts, his claim deserves closer scrutiny. It clearly hinges upon what he calls “reales Wirtschaften” (real economic activity); yet he does not define it or specify how it relates to the history of modern political economy. Admittedly, the second and third acts do not appear at first glance to contain the traditional economic elements found in the other acts. However, as I shall argue, to discount the two acts encompassing the Helena episode simply because they unfold in Faust’s head severely underestimates the complexity of Goethe’s political-economic thought in this significant portion of Faust II. Goethe does not simply set aside the keen insight into economic matters that he skillfully demonstrates throughout the rest of his self-described “Hauptgeschäft” (main business).4 Rather, he accentuates in acts 2 and 3 the subjective nature of value, particularly as it relates to the economic principle of demand. Goethe repeatedly employs and couples Wert (value) and Begehr/en (demand) in scenes leading up to and including the Helena episode. Moreover, he demonstrates in these two acts a significant change in his own approach to value, from an intrinsic to a subjective view of it

    Review of Framing Faust: Twentieth-Century Cultural Struggles

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    The scope of Fratning Faust: Twentieth-Century Cultural Struggles is very ambitious, as Inez Hedges concedes at the outset. Rather than attempting to survey the entire landscape of the Faustian, she narrows her focus to the ways in which the Faustian rebel has surfaced in some of the most important cultural crises of the twentieth century in order to explore the Faustian myth in its various political, aesthetic, and social contexts (xiii). While the topic appears very broad at first, the author skillfully demonstrates her expertise in European film and surrealism as she excavates little-known archival material and countless lesser-known Faust texts. Hedges begins with the history of film and Faust films. In the first chapter, Faust and Early Film Spectatorship, she notes that the Faust theme was the subject of over two dozen films in five different countries before 1913· She offers a fascinating account of Georges Melies\u27s Faust films produced between 1897 and 1904. Rather than documenting life as the Lumière brothers did, he turned his camera toward the imaginary realm and quickly invented special effects. As Melies\u27s became more adept at these tricks, they played a larger role in his Faust films. In view of the early history of film, it is worth noting that Goethe had dreamt of a Faust film, according to Ulrich Gaier Hedges continues with a brief analysis of Richard Ridgely\u27s 1915 film The Magic Skin and concludes with readings of well-known German Faust films

    X ray sensitive area detection device

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    A radiation sensitive area detection device is disclosed which comprises a phosphor-containing film capable of receiving and storing an image formed by a pattern of incoming x rays, UV, or other radiation falling on the film. The device is capable of fluorescing in response to stimulation by a light source in a manner directly proportional to the stored radiation pattern. The device includes: (1) a light source capable of projecting light or other appropriate electromagnetic wave on the film so as to cause it to fluoresce; (2) a means to focus the fluoresced light coming from the phosphor-containing film after light stimulation; and (3) at least one charged coupled detector or other detecting element capable of receiving and digitizing the pattern of fluoresced light coming from the phosphor-containing film. The device will be able to generate superior x ray images of high resolution from a crystal or other sample and will be particularly advantageous in that instantaneous near-real-time images of rapidly deteriorating samples can be obtained. Furthermore, the device can be made compact and sturdy, thus capable of carrying out x ray or other radiation imaging under a variety of conditions, including those experienced in space

    Neutron Multiplicity Measurements of Target/Blanket Materials

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    To begin developing the database necessary for the validation and benchmarking of the LAHET component of the MCNPX code suite, the UNLV research program has set forth the following objectives. First, the current MCNPX suite will be used to develop models of multi-element neutron detector systems. These models of the detector systems will be incorporated into the design of detailed models for the entire detector-target system. These models will first be used to help design the irradiation experiments, and then will be used to model the behavior of the system. Irradiation experiments corresponding to the detector-target system models will be performed, and measurements of the neutron leakage from the targets will be acquired. High spatial resolution and position sensitive measurements of the source term volume will also be acquired. The results of the experimental campaign will be compared with the simulated system to evaluate the performance of the MCNPX model. This database will also be made available to the code designers to allow them to benchmark the LAHET component of the MCNPX code

    Computers, Work Organization, and Wage Outcomes

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    We examine two factors frequently thought to be changing the U.S. workplace, high performance work practices and computer use, and their relationships with pay using a national probability sample of U.S. establishments. The analysis controls for both organizational and individual characteristics and finds that higher wages are associated with several practices, particularly computer use and teamwork, for front-line workers who are the targets of most high performance work practices. Not surprisingly, relationships are not as strong for other occupations and are very weak in the non-manufacturing sector. Computer use is a particularly important influence on the wages of managers and supervisors, although it is computer use by their subordinates that is the important factor. The most unusual result may be the consistently negative and significant relationship between wages and job rotation where additional analyses suggest that job rotation in isolation from other high performance practices may proxy lower skill jobs. Some of the positive relationships vanish when various controls for human capital are added, suggesting that those wage premiums are a return to human capital and may be driven by greater skill requirements.
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