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Author Garstang, R.H.
Title Dust and Light Pollution Type Journal Article
Year 1991 Publication The Astronomical Society of the Pacific Abbreviated Journal
Volume 103 Issue (up) Pages 1109-1116
Keywords Skyglow
Abstract We have refined our model for the prediction ofthe brightness ofthe night sky due to man-made light pollution by the addition of an ozone layer, by the use ofa more accurate representation ofthe atmospheric molecular density variation as a function ofheight, and by using a better mathematical representation ofthe scattering angular function of aerosols. Each ofthese modifications leads to a small reduction in the predicted brightness ofthe night sky. We have also added to our model a thin layer ofdust ofarbitrary optical thickness and height above sea level. We have studied dust clouds at various heights and ofvarious optical thicknesses. Most ofour calculations have been performed for Kitt Peak National Observatory. Most calculations have used scattering and absorption coefficients appropriate for volcanic clouds; a few calculations refer to desert dust. Light pollution is reduced by a dust cloud ofmoderate density whose altitude is below about 10 km (for the V band) and increased for dust clouds at greater altitudes. Observations from good sites are not likely to be greatly affected by the increases in light pollution caused by volcanic clouds at altitudes oforder 20 km.
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Notes Approved no
Call Number IDA @ intern @ Serial 2523
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Author Wallace, A. R.
Title The Malay Archipelago the land of the orang-utan and the bird of paradise: a narrative of travel, with studies of man and nature Type Journal Article
Year 1869 Publication Abbreviated Journal
Volume Issue (up) Pages
Keywords Animals; Moths
Abstract Excerpt: “As soon as it got dark I placed my lamp on a table against the wall, and with pins, insect-forceps, net, and collecting boxes by my side, sat down with a book. Sometimes during the whole evening only one solitary moth would visit me, while on other nights they would pour in, in a continual stream, keeping me hard at work catching and pinning till past midnight.”
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Corporate Author Thesis
Publisher Macmillan and Co Place of Publication London Editor
Language Summary Language Original Title
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ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2524
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Author Sloane, M.; Slater, D.; Entwistle, J.
Title Tackling Social Inequalities in Public Lighting Type Journal Article
Year 2016 Publication Abbreviated Journal
Volume Issue (up) Pages
Keywords Society
Abstract 2This report is based on research findings of the Configuring Light/Staging the Social research programme (CL) based at the London School of Economics and Political Science (LSE), as well as on discussions of the Configuring Light expert working group. Consisting of high-profile experts and stakeholders in the fields of design, planning and policy-making, this group was established by CL to develop a new agenda for tackling social inequalities in public lighting. Members of the working group are listed at the end of this document.This project was run by the LSE-based Configuring Light/Staging the Social research programme and funded by LSE Knowledge Exchange and Impact funding.
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Corporate Author London School of Economics Thesis
Publisher Place of Publication Editor
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2528
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Author Mortazavi, S.A.R.; Faraz, M.; Laalpour, S.; Kaveh Ahangar, A.; Eslami, J.; Zarei, S.; Mortazavi, G.; Gheisari, F.; Mortazavi, S.M.J.
Title Exposure to Blue Light Emitted from Smartphones in an Environment with Dim Light at Night Alters the Reaction Time of University Students Type Journal Article
Year 2019 Publication Shiraz E-Medical Journal Abbreviated Journal Shiraz E-Med J
Volume Issue (up) Pages e88230
Keywords Human Health; Blue light; smartphone; Reaction Time; shift work
Abstract Background: Substantial evidence now indicates that exposure to visible light at night can be linked to a wide spectrum of disorders ranging from obesity to cancer. More specifically, it has been shown that exposure to short wavelengths in the blue region at night is associated with adverse health effects, such as sleep problems.

Objectives: This study aimed at investigating if exposure to blue light emitted from common smartphones in an environment with dim light at night alters human reaction time.

Methods: Visual reaction time (VRT) of 267 male and female university students were recorded using a simple blind computer-assisted VRT test, respectively. Volunteer university students, who provided their informed consent were randomly divided to two groups of control (N = 126 students) and intervention (N = 141 students). All participants were asked to go to bed at 23:00. Participants in the intervention group were asked to use their smartphones from 23:00 to 24:00 (watching a natural life documentary movie for 60 minutes), while the control group only stayed in bed under low lighting condition, i.e. dim light. Before starting the experiment and after 60 minutes of smartphone use, reaction time was recorded in both groups.

Results: The mean reaction times in the intervention and the control groups before the experiment (23:00) did not show a statistically difference (P = 0.449). The reaction time in the intervention group significantly increased from 412.64 ± 105.60 msec at 23:00 to 441.66 ± 125.78 msec at 24:00 (P = 0.0368) while in the control group, there was no statistically significant difference between the mean reaction times at 23:00 and 24:00.

Conclusions: To the best of the author’s knowledge, this is the first study, which showed that exposure to blue-rich visible light emitted from widely used smartphones increases visual reaction time, which would eventually result in a delay in human responses to different hazards. These findings indicate that people, such as night shift or on call workers, who need to react to stresses rapidly should avoid using their smartphones in a dim light at night.
Address Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1735-1391 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2534
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Author Guillemin, A.
Title The Heavens: An Illustrated Handbook of Popular Astronomy Type Book Whole
Year 1867 Publication Abbreviated Journal
Volume Issue (up) Pages
Keywords Skyglow
Abstract Relevant excerpt: In large towns, the thousands of gas-lamps or other lights render the observation of the Zodiacal Light very difficult, not to say impossible, at all times. On the other hand, in stations conveniently situated, it can be seen at the various epochs of the year, even in the temperate zones.
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Corporate Author Thesis
Publisher Richard Bently Place of Publication London Editor J. Norman Lockyer
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2537
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