Search Results

You are looking at 1 - 2 of 2 items for

  • Author or Editor: Christopher Hart x
  • Search level: All x
Clear All
In this book, Christopher Hart provides a comprehensive description of an applied form of Cognitive Linguistics in Cognitive Critical Discourse Analysis (Cognitive CDA). Cognitive CDA applies frameworks in cognitive linguistics in analyses of political texts and talk to highlight the ideological qualities and legitimating functions of conceptualisations associated with dominant discourse practices. Across the ten lectures, various frameworks in cognitive linguistics are applied, including cognitive grammar, conceptual semantics, conceptual metaphor theory and discourse space theory. Texts and talk from a variety of contexts and genres are analysed. In the final two lectures, Cognitive CDA is extended to multimodal data in the form of images and gestures.

The genus Protatlanta is thought to be monotypic and is part of the Atlantidae, a family of shelled heteropods. These microscopic planktonic gastropods are poorly known, although research on their ecology is now increasing in response to concerns about the effects of ocean acidification on calcareous plankton. A correctly implemented taxonomy of the Atlantidae is fundamental to this progressing field of research and it requires much attention, particularly using integrated molecular and morphological techniques. Here we use DNA barcoding, shell morphology and biogeography to show that the genus Protatlanta includes at least two valid species in the Atlantic Ocean. Protatlanta souleyeti and Protatlanta sculpta were found to be separate species, with different shell morphology and separated by a K2P genetic distance of 19% sequence divergence at the Cytochrome Oxidase 1 gene. This evidence supports the revival of the species name P. sculpta, which was described by Issel in 1911, but has not been recognised as a valid species since 1915

Open Access
In: Contributions to Zoology