selection rules

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• selection rule — Physics. any of several rules designating allowed transitions between quantum states in terms of the quantum numbers associated with the states. * * * ▪ atomic physics       in quantum mechanics, any of a set of restrictions governing the… …   Universalium

• Sélection de Grains Nobles — (SGN) is French for selection of noble berries and refers to wines made from grapes affected by noble rot. SGN wines are sweet dessert wines with rich, concentrated flavours. Alsace wines were the first to be described as Sélection de Grains… …   Wikipedia

• Rules of Go — This is an in depth discussion of the rules of go. There has been a certain amount of variation in the rules of go over time, and from place to place. This article discusses those sets of rules broadly similar to the ones currently in use in East …   Wikipedia

• selection */*/*/ — UK [sɪˈlekʃ(ə)n] / US noun Word forms selection : singular selection plural selections 1) [countable/uncountable] the process of choosing one person or thing from a group selection of: There are strict rules that govern the selection of political …   English dictionary

• selection — se|lec|tion [ sı lekʃən ] noun *** 1. ) count or uncount the process of choosing one person or thing from a group: selection of: There are strict rules that govern the selection of political candidates. make a selection: It s worth taking the… …   Usage of the words and phrases in modern English

• Rules of the Eurovision Song Contest — The official rules of the Eurovision Song Contest are long, technical, and ever changing. Many of the rules cover technical aspects of the television broadcast itself. However, a few of the more important rules affecting the conduct and outcome… …   Wikipedia

• selection*/*/ — [sɪˈlekʃ(ə)n] noun 1) [C/U] the process of choosing one person or thing from a group There are strict rules that govern the selection of political candidates.[/ex] 2) [C] a set of things for you to choose from a selection of local cheeses[/ex]… …   Dictionary for writing and speaking English

• Selection rule — In physics and chemistry, especially in the context of quantum mechanics, a selection rule is a condition constraining the physical properties of the initial system and the final system that is necessary for a process to occur with a nonzero… …   Wikipedia

• selection rule — noun Any of several general rules concerning the transitions between the states of a quantum mechanical system; they derive from the symmetry properties of the states and of their interactions …   Wiktionary

• Interstate matches in Australian rules football — Australian rules football matches between teams representing Australian colonies/states and territories have been held since 1879. For most of the 20th century, the absence of a national club competition and international matches meant that… …   Wikipedia

• NCAA basketball tournament selection process — The selection process for College basketball s NCAA Men s Division I Basketball Championship determines which 68 teams will enter the tournament, known as March Madness, and where they will be seeded and placed in the bracket. Thirty teams have… …   Wikipedia