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464 results on '"McLoughlin D"'

10. An Analysis of Higher Order Thinking in Online Discussions

Author

McLoughlin, D. and Mynard, J.

Abstract

This paper describes a study of online discussion forums as tools for promoting higher-order thinking. The study was carried out in a women's university in the United Arab Emirates. Data, in the form of online discussion forum transcripts, were collected over a 20-week semester and were analysed according to a model developed by Garrison, Anderson, and Archer (2001). Discussion forum postings were analysed for evidence of higher-order thinking and were placed within one of the model's categories of "triggering", "exploration", "integration", or "resolution". The researchers did find evidence of higher-order thinking processes. The results showed that the majority of postings were either categorised as "exploration" or "integration". The results also supported the notion that the correct conditions need to be present in order for higher-order thinking to arise. The findings suggested that the initial teacher prompt or question may have had a bearing on the nature of learners' postings. (Contains 3 tables and 1 figure.)

Published
2009
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16. The Role of Mesenchyme in Thymus Development

Author

Owen, J. J. T., McLoughlin, D. E., Suniara, R. K., Jenkinson, E. J., Compans, R. W., editor, Cooper, M., editor, Hogle, J. M., editor, Ito, Y., editor, Koprowski, H., editor, Melchers, F., editor, Oldstone, M., editor, Olsnes, S., editor, Potter, M., editor, Saedler, H., editor, Vogt, P. K., editor, Wagner, H., editor, and Melchers, Fritz, editor

Published
2000
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17. Theoretical study and experimental analysis of the scattering efficiency of hollow polymer particles in the dependent light scattering regime

Author

Auger, J.-C. and McLoughlin, D.

Subjects
Paint -- Analysis -- Chemical properties, Polymers -- Optical properties -- Analysis, Coatings -- Analysis -- Chemical properties, Metals, metalworking and machinery industries
Abstract

Abstract We present an extensive theoretical study of the optical properties of hollow polymer particles (HPP) dispersed into a polymer resin as functions of their structure and volume-filling fraction. We [...]

Published
2015
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21. Discovery of jets launched by classical nova eruptions

Author

McLoughlin, D and Blundell, K

Subjects
Physics
Abstract

Classical novae are stellar explosions that occur on the surface of white dwarfs in close binary systems. This thesis presents time-domain spec- troscopy of four recent eruptions in the Milky Way, carried out by the Global Jet Watch telescopes. Careful analysis of these observations re- veals the presence of a circumbinary disc around classical nova V906 Car following its cataclysmic event in March 2018. Its existence may provide an answer to the long-standing problem of explaining the white dwarf mass distribution. This thesis also presents the discovery of line-emitting jets and an accre- tion disc in classical nova YZ Reticuli, using sustained follow-up spec- troscopy commencing soon after the eruption in July 2020 and lasting several months. A qualitatively similar spectral signature is also observed for classical nova V6568 Sgr, hinting that jets may be a feature of classical novae more generally than previously thought. The same jets and accretion disc model is subsequently applied to the remaining two classical novae in the Global Jet Watch archive, V5668 Sgr and V906 Car, which exhibit the same behaviour. In the case of V5668 Sgr, the jets are found to persist for at least 2000 days after the eruption in March 2015. This thesis then suggests future imaging measurements that could be obtained using current instrumentation for spatially-resolved spectroscopy, which would elucidate further properties of nova jets like those discovered in all four classical novae observed by the Global Jet Watch. This thesis also uses Global Jet Watch time-lapse spectroscopy on classical novae V906 Car and V5668 Sgr to tightly constrain (to within hundreds of seconds) the duration of certain phases and their transitions that take place in the immediate aftermath of these recent eruptions.

Published
2021

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