Learn More
Several studies on Twitter usage during disasters analyze tweets collected using ad-hoc keywords pre-defined by researchers. While recent efforts have worked to improve this methodology, open questions remain about which keywords can be used to uncover tweets contributing to situational awareness (SA) and the quality of tweets returned using different(More)
  • Stephan H Duda, Benjamin Pusich, +10 authors Jean P Bérégi
  • 2002
BACKGROUND Stent implantation for obstructive femoropopliteal artery disease has been associated with poor long-term outcomes. This study evaluated the effectiveness of shape memory alloy recoverable technology (SMART) nitinol self-expanding stents coated with a polymer impregnated with sirolimus (rapamycin) versus uncoated SMART Stents in superficial(More)
for adversarial assessment, and (1193343 with UCSD) for massively multiplayer online games (MMOG)-social and cultural model embedding technologies. Additional support was provided by CASOS — the center for Abstract This report presents a collection of data describing many of the economic and social interactions that occurred in Glitch, a recently closed(More)
Massively Multiplayer Online Games (MMOGs), in their aspect as online communities, represent an exciting opportunity for studying social and behavioral models. For that purpose we have developed Cosmopolis, a free MMOG containing several key research-oriented features. First, Cosmopolis consists of an outer game for larger-scale social modeling, as well as(More)
In the present work, we compare samples of tweets from the Twitter Streaming API that were constructed from different connections tracking the same popular keywords at the same time. We find that tweets from the Streaming API are not sampled at random; rather, on average over 96% of the tweets seen in one sample are seen in all others. Somewhat(More)
A critical part of social science is the development of new theory to explain social interactions and the formation and uses of social networks. Paired with this problem is that of testing such theory to ensure its validity. These problems are hampered by a lack of operationalized concepts in human interactions (e.g. identifying a " unit " of knowledge) and(More)
As the growth in popularity of massively multiplayer online games and virtual worlds has correspondingly increased research interest in investigating culture in synthetic environments. One representation of culture in games is the narrative provided in MMORPGs' quest sets. Quests-tasks given to players-provide a window into the traits of artificial cultures(More)
31P magnetic resonance spectroscopy (MRS) was used to study an open therapeutic trial of coenzyme Q10 (CoQ) in mitochondrial encephalomyopathies. Eight patients were treated with 150 mg CoQ per day for 6 months. 31P MRS spectra of calf muscle were recorded at rest, during exercise and in the immediate postexercise recovery period. Although there was an(More)
In this article, the authors discuss the development of the SUDAN GAME, an interactive model of the country in the time period leading up to the Sudanese referendum on the secession of the South. While many simulations are designed to educate about their subjects, the SUDAN GAME is intended to be a prototype for policy making via gameplay. It is implemented(More)