When is a Union List Not a Union List

Trade Union Priority List for REACH authorisation.

BACKGROUND The new EU Registration, Evaluation, Authorisation and Restriction of Chemical Substances (REACH) Regulation to control the trade and use of chemicals has a great potential to reduce worker exposure to hazardous substances and therefore reduce chemical-related occupational diseases. REACH requires manufacturers of substances of very high concern (SVHC) to request an authorisation for...

International Union of Pharmacology. XLVI. G protein-coupled receptor list.

NC-IUPHAR (International Union of Pharmacology Committee on Receptor Nomenclature and Drug Classification) and its subcommittees provide authoritative reports on the nomenclature and pharmacology of G protein-coupled receptors (GPCRs) that summarize their structure, pharmacology, and roles in physiology and pathology. These reports are published in Pharmacological Reviews (http://www.iuphar.org...

CAHSL Union List of Serials: the Connecticut experience.

List

A case when the union of polytopes is convex

We present a necessary and sufficient condition for the union of a finite number of convex polytopes in Rd to be convex. This generalises two theorems on convexity of the union of convex polytopes due to Bemporad et al. © 2004 Elsevier Inc. All rights reserved. AMS classification: Primary 52A20, 52A35; Secondary 52B11, 52B55