Virtual creatures operating in a physically realistic 3D environment, as originally introduced by Karl Sims, provide a challenging domain for artificial evolution. However, few coevolutionary experiments have been reported. Here we describe the results of our experiments on the evolution of physical combat among virtual creatures: essentially, we evolve creatures that trade blows with each othe...

The present paper constitutes an investigation on two twin classes of matrices, which result as Hadamard products of already known classes of matrices. The classes under consideration have Brownian form, which is defined by 3n − 1 parameters. Their inverses are matrices of lower Hessenberg form, the elements of which can be expressed analytically by these parameters. The explicit forms of the i...

OF DOCTORAL DISSERTATION AALTO UNIVERSITY SCHOOL OF SCIENCE AND TECHNOLOGY P.O. BOX 11000, FI-00076 AALTO http://www.aalto.fi Author Jari Juhani Jalkanen Name of the dissertation Manuscript submitted 26.03.2010 Manuscript revised 05.05.2010 Date of the defence 28.05.2010 Article dissertation (summary + original articles) Monograph Faculty Department Field of research Opponent(s) Supervisor Inst...

For nonsingular n× n (n ≥ 6) pentadiagonal matrices P having nonzero entries on its second subdiagonal, we propose a procedure for computing both the determinant detP in O(n) times, and accurate information for obtaining the inverse P−1 in O(n) times. In the general nonsingular case, n ≥ 5, a suitable decomposition of P, as a product of two nonsingular upper Hessenberg matrices, allows us anoth...

The very title of my paper may cause many eyebrows to be raised. For anyone who is familiar with Popper’s philosophy of science knows well that he distinguished clearly between two types of historical processes, namely, the process of conceiving a new scientific theory or idea and the methods of examining it logically, and asserted that the task of the philosophers is not to ponder on these act...

The goal of the MKRP project is the development of a theorem prover which can be used as an inference engine in various applications, in particular it should be capable of proving significant mathematical theorems. Our first implementation, the Markgraf Karl Refutation Procedure1 (MKRP) realizes some of the ideas we have developed to this end. It is a general purpose resolution based deduction ...

This paper revisits a meta-analysis method proposed by Pearson (1934) and first used by David (1933). It was thought to be inadmissible, for over fifty years, dating back to a paper of Birnbaum (1954). It turns out that the method Birnbaum analyzed is not the one that Pearson proposed. We show that Pearson’s proposal is admissible. Because it is admissible it has better power than the standard ...

organophosphorus compounds are known to inhibit the esteratic site of acetylcholinesterase by phosphorylation. the phosphorylated esteratic site of acetylcholinesterase undergoes hydrolytic regeneration at a slow or negligible rate. nucleophilic agents such as hydroxytamine, hydroxamic acids, and oximes reactivate the enzyme more erapidfy than does spontaneous hydrolysis. the red cell cholinest...