This is the series of blocks Amino acid substitution matrices (BLOSUM), all of which are derived based on direct on direct observation for every possible amino acid substitution in multiple sequence alignments.
A volt-ampere (VA) is the unit used for the apparent power in an electrical circuit, equal to the product of root-mean-square (RMS) voltage and RMS current.[1] In direct current (DC) circuits, this product is equal to the real power (active power) [2] in watts.
The Veterans Information Systems and Technology Architecture (VistA) is a nationwide information system and Electronic Health Record (EHR) developed by the U.S. Department of Veterans Affairs (VA) throughout the U.S. to all 1200+ healthcare sites of the Veterans Health Administration (VHA).