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The Spread toolkit is a group communication system available from www.spread.org. Spread provides a range of reliability, ordering and stability guarantees for message delivery. Spread supports a rich fault model that includes process crashes and recoveries and network partitions and merges under the extended virtual synchrony semantics. The standard(More)
BACKGROUND AND PURPOSE Direct thrombin inhibitors, including argatroban, represent an anticoagulant class distinct from heparins. We investigated the safety of 2 levels of argatroban anticoagulation in acute ischemic stroke. METHODS This multicenter, randomized, double-blinded, placebo-controlled study included 171 patients with acute (< or =12 hours from(More)
Due to the high priority of cyber-security education, the United States Naval Academy rapidly developed and implemented a new cyber-security course that is required for all of its first-year students. During the fall semester in 2011, half of the incoming class (about 600 students) took the course through a total of 31 sections offered by 16 instructors(More)
Awareness information, information about others' presence and activities that allows us to determine their availability for conversation, plays an important role in workplace communication, as people often gather and act on it in the process of negotiating mutual availability. This paper presents a laboratory experiment examining how gathering awareness(More)
Cyber security is an area where much curriculum development is taking place, and it is important that such efforts be shared. In this work we describe three lab exercises developed at the United States Naval Academy for use in our fundamentals of cyber-security course, a course required of all freshmen. The hands-on lab activities reinforce ideas presented(More)
In spring 2011, the United States Naval Academy decided that, beginning in fall 2011, all first-year students would be required to take an introductory core course in the technical foundations of cyber security. This decision triggered our attempt to set an "academic world-record" for the development and implementation of a unique core course in six months(More)
Acknowledgements I would like to thank John Schultz for all his help. As a friend and colleague he helped me in countless ways whether he knew it or n ot. He is the co-creator of HyperDog and implementer of the LinkServers. I loo k forward to our continued adventures. I am very grateful to my advisor Dr. Yair Amir for his faith in me and his support along(More)
Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientific and Technical Information (STI) Program Office plays a key part in helping NASA maintain this important role. The NASA STI Program Office is operated by Langley Research Center, the Lead Center for NASA's scientific and technical information.(More)
The small size, high power, promise of access to any wavelength between 3.5 and 16 microns, substantial tuning range about a chosen center wavelength, and general robustness of quantum cascade (QC) lasers provide opportunities for new approaches to ultra-sensitive chemical detection and other applications in the mid-wave infrared. PNNL is developing novel(More)