ESP; English for academic purposes; EAP ; LDV; Linguistic data processing ; MICASE ; Academic discourse; Scientific communication ; Spoken language ; Lexikometrie; Lexicometry; Automated Similarity Judgment Program; ASJP; Lexicostatistics ; Frequency (pragm.) ; Techniques (in research) ; Research techniques ; Unterbrechung (Diskursanalyse) ; Interruption (conversational analysis) ; Dialogsteuerung; Alternation (pragm.) ; Sprecherwechsel ; Sentence length (pragm.) ; Hochschule; University (communication situation) ; Classroom communication; Instructional communication ; Students' language ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English