News and ISN

The ISN President’s Column

The 8th ICN: The largest item looming on the agenda for the ISN is our upcoming Congress in Vancouver (July 22-27). I can tell you that we are in excellent hands with Barb Beltz chairing the Congress Committee and Cathy Rankin as the Chair of the local organizing committee. Ron Harris-Warrick and Sten Grillner are the Congress Vice-Chairs. These folks, with excellent advice from the membership ...

MEDICAL NEWS and VIEWS

MEDICAL NEWS AND VIEWS

Why Research - oriented Design Isn ’ t

Human-Computer Interaction (HCI) is the discipline concerned with the design, evaluation, and implementation of interactive computing systems. Typically, HCI researchers do not primarily study existing technologies, styles of interaction, or interface solutions. On the contrary, one of the core activities in contemporary HCI is to design new technologies—prototypes—that act as vehicles through ...

Some remarks on the combinatorics of ISn

We describe the asymptotic behavior of the cardinalities of the finite symmetric inverse semigroup ISn and its endomorphism semigroup. This is applied to show that |ISn|/|End(ISn)| is asymptotically 0, solving a problem of Schein and Teclezghi. We also apply our results to compute the distributions of elements from ISn with respect to certain combinatorial properties, and to compute the generat...