The ARK mobile robot project has designed and implemented a series of mobile robots capable of navigating within industrial environments without relying on arti cial landmarks or beacons. The ARK robots employ a novel sensor, Laser Eye, that combines vision and laser ranging to e ciently locate the robot in a map of its environment. Laser Eye allows self-location of the robot in both walled and...

G protein-coupled receptor kinases (GRKs), such as rhodopsin kinase and beta-adrenergic receptor kinase (beta ARK), are involved in mediating agonist-specific phosphorylation and desensitization of G protein-coupled receptors. GRK6 is the most recently identified member of the GRK family and displays higher homology with GRK5 (70.1% amino acid identity) and IT11 (68.5%) compared to beta ARK (37...

Earlier studies of Swedish populations of the marine snail Littorina fabalis show that snails from different microhabitats (with a greater and lesser exposure to wave action) have almost diagnostic differences in one allozyme locus (arginine kinase, Ark), and differ in adult size. Snails with ‘sheltered’ and ‘exposed’ Ark genotypes occur in sympatry in intermediary exposed sites and here adult ...

Aims: The toxicological effects of single and repeated doses aqueous extract (AE) cow urine (CUE) Nicotiana tabacum leaf on the liver kidney function indices male Wistar rats were investigated.
 Study Design: Thirty-five randomized into seven groups (n=5). control group received 0.5 mL distilled water, A B 8 mg/kg body weight (BW) CUE AE respectively, once daily; C D 16 BW thrice a day (TD...

this ominous distinction. Elkhorn used to be the dominant species in shallow waters of the Caribbean, with a distribution range from Biscayne National Park, Florida, to the coast of Venezuela. Researchers believe that its abundance has been reduced by over 95% since 1980. Staghorn is the fastest-growing Western Atlantic coral and used to be found throughout the Caribbean. Its population has dec...