Among the selection criteria for the new polyurethane were that the material exhibited a combination of good wear characteristics and mechanical properties, was easy to handle, and provided for fast, easy alteration and repair of polyurethane as well as metal patterns.
A linguistic universal is a pattern that occurs systematically across natural languages, potentially true for all of them. For example, All languages have nouns and verbs, or If a language is spoken, it has consonants and vowels.
Cultural specificity and universal values? Alain Bentolila, a linguist at the University of Paris, wrote the recent Rapport de Mission sur L'Enseignmement de la Grammaire, which the French minister of education cited in announcing his program to increase grammar teaching.