Partial words were introduced by Berstel and Boasson in 1999. Since then various of their combinatorial properties have been studied, the foremost being periodicity. Lately Blanchet-Sadri has made a first step in also investigating languages of partial words by introducing the concept of pcodes. With a slightly different approach we define new ways to obtain such languages by puncturing convent...

The National Aeronautics and Space Administration (NASA) has endeavored to develop a consistent method of assuring the credibility of simulation results. Requirements like "accurate enough for a particular use" present problems. How do you measure accuracy? What has to be accurate? What factors are measured? How do you quantify “enough for the particular use?” Which functions are measured? When...

The publication of "The hippocampus as a cognitive map" (O'Keefe & Nadel, 1978) has had a remarkable impact, stimulating a huge amount of both behavioural and neurobiological research on spatial learning and memory, involving both laboratory and field studies, and employing a variety of novel techniques. The reviews of this general area of research provided by the previous contributors to this ...