Do contrastive topics exist?

Contrastive Focus and Contrastive Topics in Greek

This paper puts forward the idea that in Greek contrast is an independent feature, represented in syntax by a preverbal position. Contrast can be assigned to diierent sorts of entities, topics and foci, once a set/list of contrasting alternatives/entities has been introduced or directly implied by the discourse. Evidence for an independent treatment of contrast is provided by similarities in th...

Coherence Relations, Ellipsis and Contrastive Topics

A highly pervasive phenomenon in natural languages is ellipsis. It is commonly believed that the presence of ellipsis is one of the main reasons why natural language is as ambiguous as it is. If lexical material is left unpronounced, a hearer must rely on other parts of the sentence, on contextual information and on intonation to recover the unpronounced material. Because there may be different...

Do Black Holes Exist?

Proof that black holes exist will likely require confirmation of the existence of event horizons. The common assumption that the mere existence of large compact masses proves the case for black holes is an unwarranted extrapolation of General Relativity into a strong-field regime where it has not been adequately tested. Neither the large compact masses of galactic nuclei nor the massive compact...

Do discrete emotions exist?

Do Pioneer Cells Exist?

Most mathematical models of collective cell spreading make the standard assumption that the cell diffusivity and cell proliferation rate are constants that do not vary across the cell population. Here we present a combined experimental and mathematical modeling study which aims to investigate how differences in the cell diffusivity and cell proliferation rate amongst a population of cells can i...