INDEX terminology

Copper Development Association P.O. Box 1840 Greenwich, Conn. 06836 Standards for wrought and cast copper and copper alloy products a standards handbook is pubUshed with tolerances, alloy data, terminology, engineering data, processing characteristics, sources and specifications cross-indexes for six coppers and 87 copper-based alloys that are recognized as standards. 

The therapeutic efficacy of a dmg is generally measured in terms of ED q or ID q which represent the concentration of dmg which produces 50% of the maximum effect or 50% of maximum inhibition. LD q represents the concentration of dmg that produces 50% fataUties in test animals. The therapeutic index is the ratio of the ED q versus LD q. Detailed descriptions of the terminology and fundamental principles of pharmacology are available (32) (see Pharmacodynamics). 

Different terms are used when discussing the subject of designing with plastics. Many of them could be repeated in this book. To eliminate repeating the same definition the Appendix B TERMINOLOGY has been prepared. Where it is important to describe a term in the text, its definition is only used in the text. The INDEX includes the definitions in the text. 

The group-subgroup relation of the symmetry reduction from diamond to zinc blende is shown in Fig. 18.3. Some comments concerning the terminology have been included. In both structures the atoms have identical coordinates and site symmetries. The unit cell of diamond contains eight C atoms in symmetry-equivalent positions (Wyckoff position 8a). With the symmetry reduction the atomic positions split to two independent positions (4a and 4c) which are occupied in zinc blende by zinc and sulfur atoms. The space groups are translationengleiche the dimensions of the unit cells correspond to each other. The index of the symmetry reduction is 2 exactly half of all symmetry operations is lost. This includes the inversion centers which in diamond are present in the centers of the C-C bonds. 

McNaught AD, Wilkinson A (1997) (eds) Compendium of chemical terminology IUPAC recommendations. The gold book, 2nd edn. Blackwell, Oxford http //www.iupac.org/publications/compendium/index.html... 

Striebeck, U.B. (2000) SAP-Handbuch, IDW, Dtisseldorf. For SAP terminology see also http //help.sap.com/content/ additional/glossary/index.htm. 

EU. 2007. DG Environment website, http //ec.europa.eu/environment/water/water-drink/index en.html OECD. 2003. Descriptions of Selected Key Generic Terms Used in Chemical Hazard/Risk Assessment. Joint Project with IPCS on the Harmonisation of Hazard/Risk Assessment Terminology. OECD Series on Testing and Assessment No. 44. Environment Directorate, Joint Meeting of the Chemicals Committee and the Working Party on Chemicals, Pesticides and Biotechnology. ENV/JM/MONO(2003)15. Paris OECD. 

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