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Permission is granted to quote short excerpts and to reproduce figures and tables from this report, provided that the source of such material is fully acknowledged. Abstract Sate Based Key Hop (SBKH) protocol is created to provide a strong, lightweight encryption scheme for battery operated 802.11 devices, such as the sensors in a wireless sensor network.(More)
Epidemic C. difficile (027/BI/NAP1) has rapidly emerged in the past decade as the leading cause of antibiotic-associated diarrhea worldwide. However, the key events in evolutionary history leading to its emergence and the subsequent patterns of global spread remain unknown. Here, we define the global population structure of C. difficile 027/BI/NAP1 using(More)
Tularemia is a geographically widespread, severely debilitating, and occasionally lethal disease in humans. It is caused by infection by a gram-negative bacterium, Francisella tularensis. In order to better understand its potency as an etiological agent as well as its potential as a biological weapon, we have completed draft assemblies and report the first(More)
State Based Key Hop (SBKH) protocol provides a strong, lightweight encryption scheme for battery operated devices, such as the sensors in a wireless sensor network, as well as small office home office (SOHO) users. Although SBKH can be applied to many underlying protocols, in this paper, we focus on integrating SBKH with 802.11. Hence we compare SBKH with(More)
BACKGROUND Burkholderia pseudomallei is the causative agent of melioidosis, a tropical disease of humans with a variable and often fatal outcome. In murine models of infection, different strains exhibit varying degrees of virulence. In contrast, two related species, B. thailandensis and B. oklahomensis, are highly attenuated in mice. Our aim was to(More)
Integrating concurrent and object-oriented programming has been an active research topic since the late 1980's. There is a now a plethora of methods for achieving this integration. The majority of approaches have taken a sequential object-oriented language and made it concurrent. A few approaches have taken a concurrent language and made it object-oriented.(More)
The addition of object-oriented features to Ada has left a disconnection between the object-oriented paradigm and the intertask communication and synchronisation paradigms. The lack of extensibility of tasks and protected types as well as the task synchronisation inheritance anomaly has made design of systems that use them with object oriented features more(More)
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BACKGROUND All four Francisella tularensis subspecies possess gene clusters with potential to express type IV pili (Tfp). These clusters include putative pilin genes, as well as pilB, pilC and pilQ, required for secretion and assembly of Tfp. A hallmark of Tfp is the ability to retract the pilus upon surface contact, a property mediated by the ATPase PilT.(More)
3 Abstract 4 Integrating concurrent and object-oriented programming has been an 5 active research topic since the late 1980s. There is now a plethora of 6 methods for achieving this integration. The majority of approaches have 7 taken a sequential object-oriented language and made it concurrent. A few 8 approaches have taken a concurrent language and made(More)