FACTOID # 10: Indians go out to the movies 3 billion times a year - much more than any other nation.
 
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Encyclopedia > Transition rule

The transition rules (or selection rules) describe possible state transitions of a quantum mechanical system, expressed by changes of the quantum numbers. Transition rules exist for various types of quantum numbers:

For the difference between the initial state described by the quantum numbers (n,l,m) and the final state (n',l',m'), the following conditions have to hold:


and

  • Vibrational transitions of diatomic molecules. Change of vibrational quantum number v:

  • Rotational transitions of molecules. Change of the rotational quantum number J:


The transition rules determine the structure of atomic spectra.


  Results from FactBites:
 
Privacy, Modified - Research Transition (6302 words)
The transition period is available to covered entities who have an existing contract (or other written arrangement) with a business associate prior to the effective date of this modification, provided that the contract is not renewed or modified prior to the April 14, 2003, compliance date of the Privacy Rule.
The transition provisions are intended to address the concerns of covered entities that the two-year period between the effective date and compliance date of the Privacy Rule is insufficient to reopen and renegotiate all existing contracts for the purposes of bringing them into compliance with the Rule.
Similarly, the transition period does not relieve a covered entity of its responsibilities with respect to an individual's rights to access or amend his or her protected health information held by a business associate, or receive an accounting of disclosures by a business associate, as provided for by the Privacy Rule's requirements at Secs.
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