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41Essential amino acid — An essential amino acid or indispensable amino acid is an amino acid that cannot be synthesized de novo by the organism (usually referring to humans), and therefore must be supplied in the diet. Contents 1 Essentiality vs. conditional… …
42Essential spectrum — In mathematics, the essential spectrum of a bounded operator is a certain subset of its spectrum, defined by a condition of the type that says, roughly speaking, fails badly to be invertible .The essential spectrum of self adjoint operatorsIn… …
43essential oil — any of a class of volatile oils obtained from plants, possessing the odor and other characteristic properties of the plant, used chiefly in the manufacture of perfumes, flavors, and pharmaceuticals. [1665 75] * * * Any of a class of highly… …
44Essential fatty acid interactions — For introductory details to this topic, including terminology and ω 3 / ω 6 nomenclature, see the main articles at Essential fatty acid and Eicosanoid. The actions of the ω 3 (Omega 3) and ω 6 (Omega 6) essential fatty acids (EFAs) are best… …
45Essential Mix — Infobox Radio Show show name = Essential Mix imagesize = caption = other names = format = runtime = 2 hours country = flagicon|United Kingdom United Kingdom language = English home station = BBC Radio 1 syndicates = television = presenter = Pete… …
46Essential supremum and essential infimum — In mathematics, the concepts of essential supremum and essential infimum are related to the notions of supremum and infimum, but the former are more relevant in measure theory, where one often deals with statements which are not valid everywhere …
47Essential Factors — The Essential Factors model [http://www.intersafe.com.au/essentialSafety.html] [Geoff McDonald Associates Pty Ltd, HAZARD EVALUATION USING ESSENTIAL FACTORS METHODOLOGY, May 1991] [Vidmark Productions Limited, THE ESSENTIAL FACTORS OF ACCIDENTS]… …
48Essential Pebbles, Volume 2 — Infobox Album Name = Essential Pebbles, Volume 2 Type = compilation Longtype = Artist = Released = 1998 Recorded = Mid 1960 s Genre = Garage rock, Psychedelic rock Length = Label = AIP Records Producer = Reviews = Last album = Essential Pebbles,… …
49Essential facilities doctrine — The essential facilities doctrine (sometimes also referred to as the essential facility doctrine) is a legal doctrine which describes a particular type of claim of monopolization made under competition laws. In general, it refers to a type of… …
50Essential nutrient — An essential nutrient is a nutrient required for normal body functioning that cannot be synthesized by the body and must be obtained from a dietary source. Some categories of essential nutrients include vitamins, dietary minerals, essential fatty …
