Explores research relating parts of clauses to the communicative roles they play. Proposes that M. A. K. Halliday's system of analyzing sentences into one or more kinds of themes and a rheme is a useful system in conducting such research. Discusses implications of this system for understanding discourse production, structure, or reception. (RDS)

Reviews discourse analytic and text comprehension studies for their contributions to a cognitive process view of writing, then reports on a study that combines discourse analysis with online pause data to determine how semantic propositions reflect sentence-level planning patterns. (FL)

Compares Spanish and English essays written by bilingual writers. Describes each writer's discourse-organizational and clausal-combining strategies. Suggests that organization on the discourse level is reflected in the type of clausal combinations chosen by the writers at the sentence level. (TB)

Presents a study of the grammatical subjects as used in scientific discourse. Provides evidence that the grammatical subjects in a sample of scientific discourse are markedly long. Identifies three pressures that operate on scientists to produce such markedly long grammatical subjects. (HB)