Preliminary studies on the use of thyrotropin releasing hormone in manic states, depression, and the dysphoria of alcohol withdrawal.

Huey Ly, Janowsky Ds, Mandell Aj, Judd Ll, M Pendery

PubMed · 1975 · 24 citations · 0 references

Concepts

Abstract

This paper defines the Arrwwid number of a recursive tiling (or space-filling curve) as the smallest number w such that any ball Q can be covered by w tiles (or curve sections) with total volume O(vol(Q)). Recursive tilings and space-filling curves with low Arrwwid numbers can be applied to optimise disk, memory or server access patterns when processing sets of points in d-dimensional space. This paper presents recursive tilings and space-filling curves with optimal Arrwwid numbers. For d >= 3, we see that regular cube tilings and space-filling curves cannot have optimal Arrwwid number, and we see how to construct alternatives with better Arrwwid numbers.