One to one correspondences are established between planar rhyme schemes, planar partitions, connective relations and the associations of a product, which are all known to be enumerated by the Catalan numbers. The Catalan numbers c = [13; sequence 577] are well known as the number of ways of associating a product of n+1 terms [3, 4, 5,10,11,12]. Elementary ways of obtaining this result by consid...

The aim of the present experiment was to investigate differences between persons who stutter and persons who do not stutter during the production of sentences in a single task versus two dual-task conditions. Participants were required to form a sentence containing 2 unrelated nouns. In dual-task conditions, rhyme and category decisions were used as secondary tasks. The results for 14 adults wh...

the spreading activation models of mental lexicon's structure have presented the lexicon in multiple layers (semantic- syntactic- phonological). each layer is a network of nodes which are associated by links. the nature of these links is different from layer to layer. the literature for english speakers has shown that in the phonological layer, phonological forms of words have been linked based...