Definitions organic

TABLE 53-3. World Health Organization Definition of Osteoporosis... 

A few other official antibiotics in BP (1993) may also be assayed by adopting the method stated above, but using specific micro-organism, definite final pH of the medium, pH of the phosphate buffer, potency of solution (U per ml) and the incubation temperature. A few typical examples are given in Table 20.1 below ... 

World Health Organization Definitions—Causality Assessment of Suspected Adverse Drug Reactions... 

The urea cycle, also called ornithine cycle, was first described by H.A. Krebs and K. Henseleit in 1932. (quot. 51) The principle of ammonia detoxification in the urea cycle is based on the conversion of ammonium and bicarbonate in the mitochondria under ATP consumption into carbamoyl phosphate (by means of carbamoyl phosphate synthetase). It enters the urea cycle, which is localized mainly - yet with a low affinity for ammonium - in the periportal zone of the liver lobule. In the urea cycle alone, about two thirds of the amino nitrogen of ammonia are irretrievably lost to the organism (= definitive ammonia detoxification), (s. fig. 3.12)... 

Figure 128.1 History of iodine suppiementation, surveys of chiidren, miik monitoring and iodine nutrition in Tasmania (1949-2007). After Gibson (1995) for 1949-1984, information for 1984 onwards from Thyroid Advisory Committee meeting minutes Hynes (2001), Hynes et al., (2004), and Seai et al., (2007). A summary of the history of iodine in Tasmania, inciuding pianned and unpianned supplementation programs, surveys of thyroid size and urinary iodine ieveis in chiidren, monitoring of iodine ieveis in miik, and the status of iodine nutrition using the Worid Heaith Organization definitions. The summary covers the period from 1949, when the first survey of schoolchildren was conducted, to the most recent survey of children conducted in 2007. Stewart etal., (1971) based on WHO definitions World Health Organization, (2001).

World Health Organization. Definition, diagnosis and classification of diabetes melhms and its complications. Report of a WHO consultation. Part 1 Diagnosis and classification of diabetes mellitus. Geneva WHO, 1999. 

CIM system organization definition defines the suitable organization structure for the CIM... 

The 19-electron complexes [Fe Cp(T] -arene)] have a modest stability (up to -10°C) if the arene is not CsRe (R = Me or Et) or l,3,5-C6H3t-Bu3. For instance, with C6Me6.nHn (n < 6), they dimerize in pentane around 0°C via an unsubstituted arene carbon, which is taken into account by the mesomer 18-electron structure below. As often in organotransition-metal chemistry, the frontier between mesomerism and tautomerism is fuzzy. From the point of view of the strict organic definition, the different forms should be tautomers, because carbon atoms are changing place. In reality, however, there may be only one potential well for the three forms with a too low conversion barrier, and the three forms are probably best viewed as mesomers since they are not observable as distinct species at the infrared time scale (10 /s) ... 

Ganong, W. F. (2000). "Circumventricular organs definition and role in the regulation of endocrine and autonomic function." Clin Exp Pharmacol Physiol, 27(5-6), 422-7. 

Beilstein, Handbuch der Organischen Chemie The definitive reference series on organic chemistry. 

Self-assembled monolayers (SAMs) are molecular layers tliat fonn spontaneously upon adsorjDtion by immersing a substrate into a dilute solution of tire surface-active material in an organic solvent [115]. This is probably tire most comprehensive definition and includes compounds tliat adsorb spontaneously but are neither specifically bonded to tire substrate nor have intennolecular interactions which force tire molecules to organize tliemselves in tire sense tliat a defined orientation is adopted. Some polymers, for example, belong to tliis class. They might be attached to tire substrate via weak van der Waals interactions only. 

It is recommended that the convention used by Budzikiewicz, Djerassi, and Williams (Mass Spectrometry of Organic Compounds, Holden-Day, 1967, p. 2) be followed in referring to a-cleavage as fission of a bond originating at an atom which is adjacent to the one assumed to bear the charge the definition of p-, y-, then follows automatically. The process ... 

In the early days following the discovery of chirality it was thought that only molecules of the type CWXYZ, multiply substituted methanes, were important in this respect and it was said that a molecule with an asymmetric carbon atom forms enantiomers. Nowadays, this definition is totally inadequate, for two reasons. The first is that the existence of enantiomers is not confined to molecules with a central carbon atom (it is not even confined to organic molecules), and the second is that, knowing what we do about the various possible elements of symmetry, the phrase asymmetric carbon atom has no real meaning. 

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