One of the main problems in the field of mobile robotics is the estimation of the robot’s position in the environment. Position probability grids have been proven to be a robust technique for the estimation of the absolute position of a mobile robot. In this paper we describe an application of position probability grids to the tracking of the position of the robot. The main difference of our me...

results the mean duration of esophagectomy was 70 minutes and the total operation 180 minutes. the mean amount of bleeding during surgery was 250 cc. conversion to open approach occurred only in one patient out of 15. no cases of anastomotic leakage or pneumonia was observed. also, no case of mortality was reported. patients and methods this is a prospective study of 15 selected patients who un...

Discrete populations of brain cells signal differing types of spatial information. These "spatial cells" are largely confined to a closely-connected network of sites. We describe here, for the first time, cells in the anterior claustrum of the freely-moving rat encoding place, boundary and object information. This novel claustral spatial signal potentially directly modulates a wide variety of a...