It is the predominant alkaloid in " Lupinus mutabilis ", and is thought to chelate the bivalents calcium and magnesium.
22.
In bivalent domains, both of these marks are present, indicating genes that are silenced but can be rapidly activated when necessary.
23.
It is not the same as the law of excluded middle, however, and a semantics may satisfy that law without being bivalent.
24.
Depletion of growth factors promotes the differentiation of ESCs, while genes with bivalent chromatin can become either more restrictive or permissive in their transcription.
25.
H3K4me3 and H3K27me3 marks found on the bivalent domains regulate whether or not an embryonic stem cell differentiates or remains unspecified ( pluripotent state ).
However, modal logic is normally formalized with the principle of the excluded middle, and its relational semantics is bivalent, so this inclusion is disputable.
28.
Gardasil is a recombinant quadrivalent vaccine, whereas Cervarix is bivalent, and is prepared from virus-like particles ( VLP ) of the L1 capsid protein.
29.
Note that magnesium is a bivalent cation in the compound so there would be two taurate ions to magnesium ions would be in the ratio 2 : 1.
30.
Bivalent species such as calcium ( Ca + 2 ) are less mobile than univalent species such as sodium ( Na + ), resulting in calcium enrichment.
