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31.
Chan‐Seong Park Ph.D. Hong‐Pil Jeon M.S. Kwang‐Soo Choi M.S. Jin‐Pyo Kim Ph.D. Nam‐Kyu Park Ph.D. 《Journal of forensic sciences》2018,63(3):930-934
In the case of building collapses and overturned structures, a three‐dimensional (3D) collapse or overturn model is required to reconstruct the accident. As construction sites become increasingly complex and large, 3D laser scanning is sometimes the best tool to accurately document and store the site conditions. This case report presents one case of a structure collapse and one case of an overturned crane reconstructed by a 3D laser scanner. In the case of structural collapse of a prefabricated shoring system, a 3D model reconstructed all the members successfully, a task that is nearly impossible using a scale such as a tape measure. The reconstructed prefabricated shoring system was verified through a structural analysis through comparison with the construction drawings to investigate faults in construction. In the case of the overturned crane, the jib angle and other major dimensions were successfully acquired through 3D laser scanning and used to estimate the working radius. As a result, the propriety of the working radius with the given lifting load was successfully determined. 相似文献
32.
Improvements in human development under democratic institutions are often attributed to electoral contestation. We evaluate the effect of multiparty contestation on infant mortality in the authoritarian context. Contrary to what extant scholarship argues, we find no evidence that multiparty elections in authoritarian regimes reduce infant mortality. Specifically, we show that electoral autocracies do not produce better infant mortality outcomes compared to closed autocracies holding no multiparty elections. We also demonstrate a non-monotonic effect of electoral competition on infant mortality: Infant mortality increases in levels of electoral contestation common in electoral authoritarian regimes and decreases only at levels of contestation that are nearly exclusive to democracies. Finally, we show that increases in infant mortality in electoral authoritarian regimes operate partially through increased political violence and reduced state capacity. 相似文献
33.
Social media could serve as an easy and fast window to the climate of public opinion. In the current study, we examined the influence of perceived opinion climate revealed via Twitter postings in shaping televised debate viewers’ candidate evaluation. We conducted two Web-based experiments in the high- and low-stimulus elections: (a) the 2012 Korean presidential election and (b) the 2014 Seoul mayoral election. Instead of using contrived stimulus materials, we were able to examine the influence of exposure to Twitter postings in voters’ judgment of candidate performance in real time. Using a custom-designed Web application, participants evaluated the candidates as debate-related Twitter postings were being fed in real time during each televised debate. Our results suggest that exposure to Twitter postings has induced significant bandwagon effects. Bandwagon effects were pervasive even among partisans and the knowledgeable. Our findings show that more policy efforts ought to be made to strengthen the informative role of social viewing. 相似文献
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36.
Henning Hahn 《Development in Practice》2009,19(2):266-267
37.
The ultimate formulation of the Federal Communications Commission's “nondiscrimination on the Internet” principle could have a significant impact on economic welfare and on innovation. In this article, we explain the economics of discrimination as it applies to the Internet, and we offer a new approach for identifying anticompetitive discrimination. Our proposal would require a complaining content provider to prove (i) the broadband service provider has discriminated in favor of some affiliated content provider that is “similarly situated” to the independent content provider; (ii) such disparate treatment is based on affiliation and not on some other consideration; (iii) the independent content provider has been unreasonably restrained in its ability to compete; and (iv) the harm it suffers as a result of the discrimination would likely redound to the harm of broadband users. 相似文献
38.
Since its inception in 1977, the neutral reportage libel defense has ridden a rocky road. While initially received optimistically by many as a sign that courts would reinforce the commitment to the wide‐open and robust debate of public issues, many courts—most notably the United States Supreme Court—have yet to adopt the doctrine. To reflect on the two decades since creation of neutral reportage, this article reviews its history—particularly over the past 10 years—and assesses its sporadic adoption from the perspective of the marketplace of ideas. It is posited that courts may be more apt to recognize and adopt the neutral reportage privilege when viewed from the position of its ability both to increase the public's knowledge of important issues and to enhance the debate surrounding those issues. 相似文献
39.
Natur und Recht - In den letzten Jahren häufen sich Aufdeckungen von schweren Tiermisshandlungen durch Schlachthofmitarbeiter. Grund für diese Taten sind nicht zwingend sadistische... 相似文献
40.
Furchtgott-Roth Harold; Hahn Robert W.; Layne-Farrar Anne 《Journal of Competition Law and Economics》2007,3(1):49-96
Consumers and producers frequently rely on product ratings,such as college rankings, restaurant reviews, and bond ratings.While much has been written about the structure of ratings inparticular industries, little has been written on the generalstructure of different ratings industries and whether governmentintervention is typically needed. This paper begins that inquiryby examining the market structure of different ratings industries,and considering the circumstances under which firms that provideratings should be regulated. We find that most ratings firmsoperate in highly concentrated markets. We also find that mostratings firms determine their own testing standards and methods,although some industries have self-governing oversight bodiesthat offer their own accreditation standards. Despite the findingthat many ratings industries are concentrated, our analysissuggests that market forces generally appear to be an effectivemechanism for providing consumers and producers with usefulratings. 相似文献