Search results
Results From The WOW.Com Content Network
Applying the rules recursively to a source string of symbols will usually terminate in a final output string consisting only of terminal symbols. Consider a grammar defined by two rules. In this grammar, the symbol Б is a terminal symbol and Ψ is both a non-terminal symbol and the start symbol. The production rules for creating strings are as ...
For example, the right arm and leg are controlled by the left, contralateral, side of the brain. Ipsilateral (from Latin ipse 'same'): on the same side as another structure. [25] For example, the left arm is ipsilateral to the left leg. Bilateral (from Latin bis 'twice'): on both sides of the body. [26]
A tetrapeptide (example: Val-Gly-Ser-Ala) with green highlighted N-terminal α-amino acid (example: L-valine) and blue marked C-terminal α-amino acid (example: L-alanine). The C-terminus (also known as the carboxyl-terminus , carboxy-terminus , C-terminal tail , carboxy tail , C-terminal end , or COOH-terminus ) is the end of an amino acid ...
Side-by-side arrivals and departures on a single level is the simplest option for small airports that do not use the jet bridges; Side-by-side arrivals and departures on two levels uses a street-level car traffic at the landside interface, with elevators and lifts bringing the passengers to and from the upper (boarding) level with jet bridges;
In particular, an alternative containing a useless nonterminal symbol can be deleted from the right-hand side of a rule. Such rules and alternatives are called useless. [24] In the depicted example grammar, the nonterminal D is unreachable, and E is unproductive, while C → C causes a cycle.
The N-terminal signal peptide is recognized by the signal recognition particle (SRP) and results in the targeting of the protein to the secretory pathway. In eukaryotic cells, these proteins are synthesized at the rough endoplasmic reticulum. In prokaryotic cells, the proteins are exported across the cell membrane.
In addition to the protein domains, there are unusual transmembrane elements formed by peptides. A typical example is gramicidin A, a peptide that forms a dimeric transmembrane β-helix. [8] This peptide is secreted by gram-positive bacteria as an antibiotic. A transmembrane polyproline-II helix has not been reported in natural proteins ...
A → w, where A is a non-terminal in N and w is in a (possibly empty) string of terminals Σ * A → wB , where A and B are in N and w is in Σ * . Some authors call this type of grammar a right-regular grammar (or right-linear grammar ) [ 1 ] and the type above a strictly right-regular grammar (or strictly right-linear grammar ).