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Author (up) Alves-Simoes, M.; Coleman, G.; Canal, M.
Title Effects of type of light on mouse circadian behaviour and stress levels Type Journal Article
Year 2015 Publication Laboratory Animals Abbreviated Journal Lab. Anim.
Volume 50 Issue 1 Pages 21-29
Keywords Animals; mouse; albino; pigmented; fluorescent light; LED light; Circadian Rhythm
Abstract Light is the principal synchronizing environmental factor for the biological clock. Light quantity (intensity), and light quality (type of light source) can have different effects. The aim of this study was to determine the effects of the type of light experienced from the time of birth on mouse growth, circadian behaviour and stress levels. We raised pigmented and albino mice under 24 h light–dark cycles of either fluorescent or white light-emitting diode (LED) light source during the suckling stage, and the animals were then exposed to various light environments after weaning and their growth rate, locomotor activity and plasma corticosterone concentration were measured. We found that the type of light the animals were exposed to did not affect the animals’ growth rates or stress levels. However, we observed significant effects on the expression of the locomotor activity rhythm under low contrast light–dark cycles in pigmented mice, and under constant light in both albino and pigmented mice. These results highlight the importance of environmental light quality (light source) on circadian behavioural rhythms, and the need for close monitoring of light environments in animal facilities.
Address University of Manchester, Faculty of Life Sciences, AV Hill Building, Oxford Road, Manchester M13 9PT, UK. Email: maria.canal{at}manchester.ac.uk
Corporate Author Thesis
Publisher SAGE Place of Publication Editor
Language English Summary Language English Original Title
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Notes Approved no
Call Number IDA @ john @ Serial 1177
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Author (up) Amaral, S.; Câmara, G.; Monteiro, A.M.V.; Quintanilha, J.A.; Elvidge, C.D.
Title Estimating population and energy consumption in Brazilian Amazonia using DMSP night-time satellite data Type Journal Article
Year 2005 Publication Computers, Environment and Urban Systems Abbreviated Journal Computers, Environment and Urban Systems
Volume 29 Issue 2 Pages 179-195
Keywords Remote Sensing
Abstract This paper describes a methodology to assess the evidence of human presence and humanactivities in the Brazilian Amazonia region using DMSP/OLS night-time satellite sensorimagery. It consists on exploring the potential of the sensor data for regional studies analysingthe correlation between DMSP night-time light foci and population, and the correlation be-tween DMSP night-time light foci and electrical power consumption. In the mosaic of DMSP/OLS night-time light imagery from September 1999, 248 towns were detected from a total of749municıpiosin Amazonia. It was found that the night-time light foci were related to human presence in the region, including urban settlements, mining, industries, and civil construction,observed in ancillary Landsat TM and JERS imagery data. The analysis considering only thestate of Para revealed a linear relation (R2¼0:79) between urban population from the 1996census data and DMSP night-time light foci. Similarly, electrical power consumption for 1999was linearly correlated with DMSP night-time light foci. Thus the DMSP/OLS imagery can beused as an indicator of human presence in the analysis of spatial–temporal patterns in theAmazonia region. These results are very useful considering the continental dimension ofAmazonia, the absence of demographic information between the official population census(every 10 years), and the dynamics and complexity of human activities in the region. ThereforeDMSP night-time light foci are a valuable data source for global studies, modelling, and planning activities when the human dimension must be considered throughout Amazonia.
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Series Volume Series Issue Edition
ISSN 0198-9715 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2221
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Author (up) Amaral, S.; Monteiro, A.M.V.; Camara, G.; Quintanilha, J.A.
Title DMSP/OLS night-time light imagery for urban population estimates in the Brazilian Amazon Type Journal Article
Year 2006 Publication International Journal of Remote Sensing Abbreviated Journal International Journal of Remote Sensing
Volume 27 Issue 5 Pages 855-870
Keywords Remote Sensing
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Language Summary Language Original Title
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ISSN 0143-1161 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 701
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Author (up) Amavilah, V.H.
Title Artificial nighttime lights and the “real” well-being of nations : “Measuring economic growth from outer space” and welfare from right here on Earth Type Journal Article
Year 2018 Publication Journal of Economics and Political Economy Abbreviated Journal
Volume 5 Issue 2 Pages 209-218
Keywords Economics; Remote Sensing
Abstract GDP remains too much of an imprecise measure of the standard of living. There

is a need for either substitutes or complements. Nighttime lights are a reasonable indicator of the extent, scale, and intensity of socio-economic activities, but a poor measure of national welfare. However, if nighttime lights are understood to constitute externalities, then their effects can be used to adjust measured growth for welfare. From that angle, nighttime lights appear to exert sub-optimal positive externalities in developing countries, and supra-optimal negative externality in developed countries. This means that even if we assume equal growth rates in developing and developed countries, welfare is enhanced by increasing nighttime lights in developing countries and reduced by increasing nighttime lights in developed countries.
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Language English Summary Language Original Title
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Notes Approved no
Call Number NC @ ehyde3 @ Serial 2099
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Author (up) Amir, S.; Stewart, J.
Title The effectiveness of light on the circadian clock is linked to its emotional value Type Journal Article
Year 1999 Publication Neuroscience Abbreviated Journal Neuroscience
Volume 88 Issue 2 Pages 339-345
Keywords Society
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0306-4522 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 987
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