Recent developments in the theory of finite splicing systems have revealed surprising connections between long-standing notions in the formal language theory and splicing operation. More precisely, the syntactic monoid and Schützenberger constant have strong interaction with the investigation of regular splicing languages. This paper surveys results of structural characterization of classes of ...

The problem of finding palindromes in strings appears in many variants: find exact palindromes, ignore punctuation in palindromes, require space around palindromes, etc. This paper introduces several predicates that represent variants of the problem of finding palindromes in strings. It also introduces properties for palindrome predicates, and shows which predicates satisfy which properties. Th...

If we consider words over the alphabet which is the set of all elements of a semigroup S, then such a word determines an element of S: the product of the letters of the word. S is strongly locally testable if whenever two words over the alphabet S have the same factors of a fixed length k, then the products of the letters of these words are equal. We had previously proved [19] that the syntacti...

This study examined communication interaction patterns when one sibling had a developmental disability as well as the role of communication skills in sibling relationship quality. Thirty sibling dyads were categorized into one of three communication status groups: emerging, context-dependent, and independent communicators. Independent communicators and their siblings did not differ in terms of ...

This study aims to enhance understanding of the factors underlying variance in the reading comprehension skills of prelingually deaf individuals. Participants were 213 sixth through tenth graders with prelingual deafness recruited from four orthographic backgrounds (Hebrew, Arabic, English, and German) and allocated to three distinct reading profiles (levels). A sentence comprehension test mani...

In the evolving Information Society (IS), the Information Technology (IT) skills are necessary to harness the power of Information and Communications Technologies (ICTs). The United Nations (UN) estimates that there are about one billion illiterate adults and 2−3 billion technological illiterates in the world. Not surprisingly, a majority of them are from information-poor regions, non-wired soc...

This chapter examines second-language sentence production both as a skill and as an on-line process by measuring relationships among linguistic and content characteristics of language samples both between and within participants. Written language samples were obtained from high school students enrolled in an intermediate-level English as a Second Language (ESL) class with embedded science instr...

goal: this study aims at analyzing and categorizing different grammatical errors including morpho-syntactic and syntactic errors in written narratives of mentally retarded students in tehran. the frequencies of errors are compared among students in different grades. method: descriptive-analytic method has been used. a test consisted of four picture stories have been administered to 125 students...