Reversible computation is a great metaphor for the foundations of physics. General discussion A reversible computation is a computation which can be reversed completely. That is, after insertion of the input into a reversible computer, the reversible computer generates some output (if ever). In such a case one may run the entire computation backward by inserting the output as new input, thereby...

The notion that humans, animals and the environment are tightly linked and that their respective well-beings are interdependent has been recognized for centuries. However, the sophistication of these interactions has only begun to be revealed. Even by the late nineteenth century, it was established knowledge that human and animal health have many commonalities; an insight that more recently led...

In a discussion of (Juola and Plunkett, 2000), (Thomas and de Wet, 1998) argue that the apparent double dissociations found in that study simply show that the backpropagation network used did not have enough hidden units and that the network did (or could) not develop “fully distributed internal representations.” In other words, the dissociations found were, in their opinion, probably not just ...

Recently, one-two descriptor has been defined and it has been shown that it is a good predictor of the heat capacity at P constant (CP) and of the total surface area (TSA). In this paper, we analyze its generalizations by replacing the value 2 by arbitrary positive value . We show that these analyses may be on interest, because even good predictions of CP and TSA can be slightly improved. Furth...

We give an alternative treatment and extension of some results of Itoh and Mahmoud on one-sided interval trees. The proofs are based on renewal theory, including a case with mixed multiplicative and additive renewals.