38 research outputs found
Unconventional Cosmology
I review two cosmological paradigms which are alternative to the current
inflationary scenario. The first alternative is the "matter bounce", a
non-singular bouncing cosmology with a matter-dominated phase of contraction.
The second is an "emergent" scenario, which can be implemented in the context
of "string gas cosmology". I will compare these scenarios with the inflationary
one and demonstrate that all three lead to an approximately scale-invariant
spectrum of cosmological perturbations.Comment: 45 pages, 10 figures; invited lectures at the 6th Aegean Summer
School "Quantum Gravity and Quantum Cosmology", Chora, Naxos, Greece, Sept.
12 - 17 2012, to be publ. in the proceedings; these lecture notes form an
updated version of arXiv:1003.1745 and arXiv:1103.227
Rethinking the factuality of “contextual” factors in an ethnomethodological mode: Towards a reflexive understanding of action-context dynamism in the theorisation of coaching
In this paper, an argument is made for the revisitation of Harold Garfinkel's classic body of ethnomethodological research in order to further develop and refine models of the action-context relationship in coaching science. It is observed that, like some contemporary phenomenological and post-structural approaches to coaching, an ethnomethodological perspective stands in opposition to dominant understandings of contexts as semi-static causal ‘variables’ in coaching activity. It is further observed, however, that unlike such approaches – which are often focused upon the capture of authentic individual experience – ethnomethodology operates in the intersubjective domain, granting analytic primacy to the coordinative accomplishment of meaningful action in naturally-occurring situations. Focusing particularly on Garfinkel's conceptualization of action and context as transformable and, above all, reflexively-configured, it is centrally argued that greater engagement with the ethnomethodological corpus of research has much to offer coaching scholarship both theoretically and methodologically