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Cooling efficiency of a brushless direct current stand fan
Berkeley Education Alliance for Research in Singapore, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore. (Building Energy Efficiency)
University of California, Berkeley.
National University of Singapore.
National University of Singapore.
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2015 (English)In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 85, 196-204 p.Article in journal (Refereed) Published
Abstract [en]

The idea of far transfer effects in the cognitive sciences has received much attention in recent years. One domain where far transfer effects have frequently been reported is music education, with the prevailing idea that music practice entails an increase in cognitive ability (IQ). While cross-sectional studies consistently find significant associations between music practice and IQ, randomized controlled trials, however, report mixed results. An alternative to the hypothesis of cognitive transfer effects is that some underlying factors, such as shared genes, influence practice behaviour and IQ causing associations on the phenotypic level. Here we explored the hypothesis of far transfer within the framework of music practice. A co-twin control design combined with classical twin-modelling based on a sample of more than 10,500 twins was used to explore causal associations between music practice and IQ as well as underlying genetic and environmental influences. As expected, phenotypic associations were moderate (r = 0.11 and r = 0.10 for males and females, respectively). However, the relationship disappeared when controlling for genetic and shared environmental influences using the co-twin control method, indicating that a highly practiced twin did not have higher IQ than the untrained co-twin. In line with that finding, the relationship between practice and IQ was mostly due to shared genetic influences. Findings strongly suggest that associations between music practice and IQ in the general population are non-causal in nature. The implications of the present findings for research on plasticity, modularity, and transfer are discussed.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 85, 196-204 p.
Keyword [en]
Cooling fan efficiency index, Thermal manikin, Equivalent temperature, Thermal comfort, Air movement
National Category
Other Engineering and Technologies not elsewhere specified
Research subject
URN: urn:nbn:se:umu:diva-98603DOI: 10.1016/j.buildenv.2014.11.032ISI: 000350184900021OAI: diva2:783204
Available from: 2015-01-24 Created: 2015-01-24 Last updated: 2015-12-08Bibliographically approved

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Yang, Bin
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