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Laporte rule. The Laporte rule is a rule that explains the intensities of absorption spectra for chemical species. It is a selection rule that rigorously applies to atoms, and to molecules that are centrosymmetric, i.e. with an inversion centre. It states that electronic transitions that conserve parity are forbidden.
In chemistry, a molecular orbital (/ ɒrbədl /) is a mathematical function describing the location and wave-like behavior of an electron in a molecule. This function can be used to calculate chemical and physical properties such as the probability of finding an electron in any specific region.
Gordon music learning theory. Gordon music-learning theory is a model for music education based on Edwin Gordon's research on musical aptitude and achievement in the greater field of music learning theory. [1][2] The theory is an explanation of music learning, based on audiation (see below) and students' individual musical differences.
The rule of mutual exclusion in molecular spectroscopy relates the observation of molecular vibrations to molecular symmetry. It states that no normal modes can be both Infrared and Raman active in a molecule that possesses a center of symmetry. This is a powerful application of group theory to vibrational spectroscopy, and allows one to easily ...
Molecular term symbol. In molecular physics, the molecular term symbol is a shorthand expression of the group representation and angular momenta that characterize the state of a molecule, i.e. its electronic quantum state which is an eigenstate of the electronic molecular Hamiltonian. It is the equivalent of the term symbol for the atomic case.
American String Teachers. Association. v. t. e. The Kodály method, also referred to as the Kodály concept, is an approach to music education developed in Hungary during the mid-twentieth century by Zoltán Kodály. His philosophy of education served as inspiration for the method, which was then developed over a number of years by his associates.
Online Archive. The Journal of Research in Music Education was established in 1953 under the editorship of Allen Britton. At first many of the articles described historical and descriptive research, but in the early 1960s the journal began to shift toward experimental research. The Society for Research in Music Education was established in 1960 ...
Basic Concepts in Music Education. Basic Concepts in Music Education is a landmark work published in the USA 1958 as the Fifty-Seventh Yearbook of the National Society for the Study of Education. In 1954, the Music Educators National Conference ( MENC) had formed its Commission on Basic Concepts in an attempt to seek a more soundly-based ...