Although mobile robot navigation in unstructured environments is an open problem, robotic systems can be developed which operate in relatively unstructured but known environments. The Autonomous Robot for a Known environment (ARK) project has constructed an autonomous robot capable of navigating and carrying out survey/inspection tasks in a complex industrial environment. The ARK environment is...

We present preliminary results of the long-term spectral monitoring of two active galactic nuclei with different broad line shapes: Ark 564 and Arp 102B. Ark 564 is a bright nearby narrow-line Syfert 1 (NLS1) galaxy with relatively narrow permitted optical emission lines and a high Fe II/Hβ ratio, while Arp 102B is a nearby broad-line radio galaxy with broad double-peaked Balmer emission lines....

The ARK (Archival Resource Key) is the only persistent naming scheme for internet information objects that squarely faces the service issues underlying practical electronic permanence. The ARK is a specially constructed, actionable URL encapsulating a globally unique identity that is independent of the current service provider. Each ARK is by definition bound to three things: (a) object access,...

The Biblical story of the Art (a floating, zoo-like device, constructed to survive climate turmoil and mass extinction) can be regarded as an archetypal image (in the terminology of Gaston Bachelard), capturing structural components of the human-animal relationship. Building on the contributions by Larson and Barr, Keulartz, Bovenkerk and Verweij, and Ramp and Bekoff, I will argue that, in the ...

PURPOSE To present the approach of using a scanning slit refractometer (the ARK 10000) in conjunction with a corneal topography system to guide customized corneal ablation. This diagnostic system is coupled with the Nidek EC-5000 system which combines scanning slit and a scanning small area ablation (1.0 mm) to perform a customized ablation. METHODS The ARK 10000 diagnostic system which conta...

Topiramate is a newer anticonvulsant used to treat epilepsy, migraines, bipolar disorder, posttraumatic stress, and other conditions. Serum topiramate concentrations are measured to determine optimal levels, address therapeutic failure or drug–drug interactions, and assess compliance. Two high-throughput assays for serum topiramate measurement were compared: the Seradyn fluorescence polarizatio...

In this paper, we review the Intergovernmental Panel on Climate Change and the Millennium Ecosystem Assessment Scenarios and their assumptions on biodiversity conservation, using a framework based on the cultural theory (CT) perspectives. We explored an adaptation of the CT typology and the significance of some underrepresented worldviews for discussions on conservation in a changing world. The...