In all cases, all unaligned amino acids were converted to "X", the IUPAC symbol for unspecified amino acids, and were effectively filtered out from downstream phylogenetic analyses.
Some logicians employ different symbols for unspecified objects (sometimes called "individual parameters") and variables used to express generality.
Whereas the atomic wildcard is a placeholder for atomic symbols, the symbol for an unspecified bond has not primarily the role of a bond placeholder; rather, it indicates bond-type ambiguity with respect to the limited classification scheme of single, double, triple, quadruple and aromatic bonds.
The flagging of the detection algorithms is represented by black (for CNMC) and red (all other hospitals) symbols (+ for unspecified infection, o for respiratory, and Δ for MV unspecified infection and respiratory).
For some NAICS, work-related fatal injury counts are unspecified and represented by a dash symbol.
For some NAICS, work-related fatal injury counts and nonfatal injury and illness counts are unspecified and represented by a dash symbol.
Two types of requests are anticipated to be the most frequent: first, a specific request for a data item using its associated map symbol as a lookup key; and second, general requests for unspecified metadata associated with a data item.
CurlySMILES includes the symbols *, ~, and $ to encode an atomic wildcard, an unspecified bond and a quadruple bond, respectively.
The symbol e−, which stands for an electron, serves as a reminder that an unspecified reducing agent is required to bring about the change.
It seeks unspecified damages.
Unspecified meeting of Methodist ministers.
