Is the Trotterized UCCSD Ansatz Chemically Well-Defined?

Chemically Defined Medium

CHAMBERLAIN, ROBERT E. (The National Drug Co., Swiftwater, Pa.). Evaluation of live tularemia vaccine prepared in a chemically defined medium. Appl. Microbiol. 13:232-235. 1965.-A chemically defined medium was prepared which adequately supported growth of a vaccine strain of Pasteurella tularensis. This medium differed from those previously described in: (i) concentration of components, (ii) a ...

The Distribution Semantics is Well-Defined for All Normal Programs

The distribution semantics is an approach for integrating logic programming and probability theory that underlies many languages and has been successfully applied in many domains. When the program has function symbols, the semantics was defined for special cases: either the program has to be definite or the queries must have a finite number of finite explanations. In this paper we show that it ...

Mitochondrial Haplogroups and Well Defined Populations

Is It the Right Ansatz?

This article is a response to Rasmussen et al. [Artificial Life, 7, 329-350], in which the authors suggest that, within a particular simulation "framework," there is a tight correspondence between the complexity of the primitive objects and the emergence of dynamical hierarchies. As an example they report a two-dimensional artificial chemistry that supports the spontaneous emergence of micellar...

Zeta-function Regularization Is Uniquely Defined and Well

Hawking’s zeta function regularization procedure is shown to be rigorously and uniquely defined, thus putting and end to the spreading lore about different difficulties associated with it. Basic misconceptions, misunderstandings and errors which keep appearing in important scientific journals when dealing with this beautiful regularization method —and other analytical procedures— are clarified ...