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Tiananmen Square protests
Describes what sparked the events leading up to the Tiananmen Square protests, as well as what occurred during the protest and the world's response. Includes a brief history of earlier protests in China's history.
Book
Technical Support by Smart Glasses During a Mass Casualty Incident: A Randomized Controlled Simulation Trial on Technically Assisted Triage and Telemedical App Use in Disaster Medicine
To treat many patients despite lacking personnel resources, triage is important in disaster medicine. Various triage algorithms help but often are used incorrectly or not at all. One potential problem-solving approach is to support triage with Smart Glasses.
In this study, augmented reality was used to display a triage algorithm and telemedicine assistance was enabled to compare the duration and quality of triage with a conventional one.
A specific Android app was designed for use with Smart Glasses, which added information in terms of augmented reality with two different methods-through the display of a triage algorithm in data glasses and a telemedical connection to a senior emergency physician realized by the integrated camera. A scenario was created (ie, randomized simulation study) in which 31 paramedics carried out a triage of 12 patients in 3 groups as follows: without technical support (control group), with a triage algorithm display, and with telemedical contact.
A total of 362 assessments were performed. The accuracy in the control group was only 58%, but the assessments were quicker (on average 16.6 seconds). In contrast, an accuracy of 92% (P=.04) was achieved when using technical support by displaying the triage algorithm. This triaging took an average of 37.0 seconds. The triage group wearing data glasses and being telemedically connected achieved 90% accuracy (P=.01) in 35.0 seconds.
Triage with data glasses required markedly more time. While only a tally was recorded in the control group, Smart Glasses led to digital capture of the triage results, which have many tactical advantages. We expect a high potential in the application of Smart Glasses in disaster scenarios when using telemedicine and augmented reality features to improve the quality of triage.
Journal Article
Overview of traffic incident duration analysis and prediction
IntroductionNon-recurrent congestion caused by traffic incident is difficult to predict but should be dealt with in a timely and effective manner to reduce its influence on road capacity reduction and enormous travel time loss. Influence factor analysis and reasonable prediction of traffic incident duration are important in traffic incident management to predict incident impacts and aid in the implementation of appropriate traffic operation strategies. The objective of this study is to conduct a thorough review and discusses the research evolution, mainly including the different phases of incident duration, data resources, and the various methods that are applied in the traffic incident duration influence factor analysis and duration time prediction.MethodsIn order to achieve the goal of this study, we presented a systematic review of traffic incident duration time estimation and prediction methods developed based on various data resource, methodologies etc.Resultsbased on the previous studies, we analyse (i) Data resources and characteristics: different traffic incident time phases, data set size, incident types, duration time distribution, available data resources, significant influence factors and unobserved heterogeneity and randomness, (ii) traffic incident duration analysis methods, mainly including hazard-based duration model and regression and statistical tests, (iii) traffic incident duration prediction methods and evaluation of prediction accuracy.ConclusionsAfter a comprehensive review of literature, this study identifies and analyses future challenges and what can be achieved in the future to estimate and predict the traffic incident duration time.
Journal Article
Wave-front Transformation with Gradient Metasurfaces
Relying on abrupt phase discontinuities, metasurfaces characterized by a transversely inhomogeneous surface impedance profile have been recently explored as an ultrathin platform to generate arbitrary wave fronts over subwavelength thicknesses. Here, we outline fundamental limitations of passive gradient metasurfaces in molding the impinging wave and show that local phase compensation is essentially insufficient to realize arbitrary wave manipulation, but full-wave designs should be considered. These findings represent a critical step towards realistic and highly efficient conformal wave manipulation beyond the scope of ray optics, enabling unprecedented nanoscale light molding.
Journal Article
The rhetorical rise and demise of \democracy\ in Russian political discourse.: (The path from disaster toward Russian \democracy\)
The essays in this book examine the arguments and rhetoric used by the United States and the USSR following two catastrophes that impacted both countries, as blame is cast and consequences are debated. In this environment, it was perhaps inevitable that conspiracy theories would arise, especially about the downing of Korean Air Lines Flight 007 over the Sea of Japan. Those theories are examined, resulting in at least one method for addressing conspiracy arguments. In the case of Chernobyl, the disaster ruptured the \"social compact\" between the Soviet government and the people; efforts to overcome the resulting disillusionment quickly became the focus of state efforts.
eBook
Tiananmen Square
It is Beijing in the 1970s, and Lai lives with her parents, grandmother and younger brother in a small flat in a working-class area. As she grows up, Lai comes to discern the realities of the country she lives is: an early encounter with the police haunts her for years; her father makes her see that his quietness is a reaction to experiences he has lived through; and an old bookseller subtly introduces her to ideas that open her mind to different perspectives. A novel about coming to see the world as it is, 'Tiananmen Square' is the story of one girl's life growing up in the China of the 1970s and 80s, as well as the story of the events in 1989 that give the novel its name.
BOOK
The Rhetorical Rise and Demise of Democracy in Russian Political Discourse, Volume 1
The 1983shootdown of KAL 007 and the 1986 Chernobyl nuclear accident dramatically changedthe Soviet Union in unpredictable ways. The Communist Party, which struggled tomaintain control of political messaging after the KAL crisis, lost control inthe aftermath of Chernobyl.
eBook