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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 .
In computer science, mutual exclusion is a property of concurrency control, which is instituted for the purpose of preventing race conditions. It is the requirement that one thread of execution never enters a critical section while a concurrent thread of execution is already accessing said critical section, which refers to an interval of time ...
In logic, the law of excluded middle or the principle of excluded middle states that for every proposition, either this proposition or its negation is true. [1] [2] It is one of the three laws of thought, along with the law of noncontradiction, and the law of identity; however, no system of logic is built on just these laws, and none of these laws provides inference rules, such as modus ponens ...
The rule of mutual exclusion, which states that vibrational modes cannot be both IR and Raman active, applies to certain molecules. The specific selection rules state that the allowed rotational transitions are =, where is the rotational state. This generally is only relevant to molecules in the gas phase where the Raman linewidths are small ...
Rule of mutual exclusion; References This page was last edited on 27 February 2024, at 18:50 (UTC). Text is available ...
Lamport's bakery algorithm is a computer algorithm devised by computer scientist Leslie Lamport, as part of his long study of the formal correctness of concurrent systems, which is intended to improve the safety in the usage of shared resources among multiple threads by means of mutual exclusion.
Mutual funds are taxed at either short- or long-term rates. ... Primary residences offer an exclusion of up to $250,000 — $500,000 for married couples filing jointly. Above this amount, the gain ...
In computer science, a lock or mutex (from mutual exclusion) is a synchronization primitive that prevents state from being modified or accessed by multiple threads of execution at once. Locks enforce mutual exclusion concurrency control policies, and with a variety of possible methods there exist multiple unique implementations for different ...