The main objective of this study was to evaluate the effects of transrectal guidance of the ovaries by an assistant on operative time during bovine laparoscopic ovariectomy. Twenty four clinically healthy Holstein dairy cows were divided randomly into two groups. In the transrectal guidance group, an assistant grasped the ovaries via the transrectal route and pulled them to a position where the...

Desert ants are expert navigators, foraging over large distances using visually guided routes. Recent models of route following can reproduce aspects of route guidance, yet the underlying motor patterns do not reflect those of foraging ants. Specifically, these models select the direction of movement by rotating to find the most familiar view. Yet scanning patterns are only occasionally observe...

Ten cynomolgus monkeys were trained to follow a fixed route through a whole-body maze consisting of 3 X 3 matrix of 9 compartments, all with interconnecting doors. Two monkeys learned to use proprioceptive guidance such that they tended to produce the same sequence of movements even if they entered the maze by a different door. They were not impaired by bilateral lesions to inferior parietal co...

We study the route-guidance system proposed by Jahn, Möhring, Schulz, and Stier-Moses [Operations Research 53 (2005), 600–616] from a theoretical perspective. As system-optimal guidance is known to be problematic, this approach computes a traffic pattern that minimizes the total travel time subject to user constraints. These constraints are designed to ensure that routes suggested to users are ...

The passenger’s motion behavior during the check-in process will directly influence efficiency. However, little effort has been made to study this topic. This paper incorporates into route guidance strategy enhance Firstly, an extended social force (SF) model is developed describe each movement at airport terminal. Secondly, a accounting for flight’s remaining departure time and passenger densi...

This paper describes our research work towards the development of an optical guidance system for multiple mobile robots in an indoor environment. The guidance system operates with an environmental model, communicates with mobile robots and indicates their target positions by means of a light projection from a laser pointer onto the ground. Processing the image data from a CCD color camera mount...