| Records |
Author  |
Adams, J. |
| Title |
The Effect on Certain Plants of altering the Daily Period of Light |
Type |
Journal Article |
| Year |
1923 |
Publication |
Annals of Botany |
Abbreviated Journal |
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| Volume |
37 |
Issue |
145 |
Pages |
75-94 |
| Keywords |
Plants |
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no |
| Call Number |
GFZ @ kyba @ |
Serial |
2406 |
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| Author |
Admiranto, A.G.; Priyatikanto, R.; Maryam, S.; Ellyyani,; Suryana, N. |
| Title |
Preliminary Report of Light Pollution in Indonesia Based on Sky Quality Observation |
Type |
Journal Article |
| Year |
2019 |
Publication |
Journal of Physics: Conference Series |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
| Volume |
1231 |
Issue |
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Pages |
012017 |
| Keywords |
Skyglow |
| Abstract |
We observed night sky quality in several LAPAN stations (Agam, Bandung, Pontianak, Sumedang, Garut, Pasuruan, and Biak) which were conducted from April until July 2018 using Unihedron Sky Quality Meter LU-DL type. Observational data from all of the observational points were then sent regularly to a centralized database for further use. Although most of the measurements were done in overcast conditions, we were able to determine the representative clear sky brightness statistically. The results showed that the light pollution level of the most of the stations are moderate (the values at Biak, Agam, Sumedang, and Pontianak are 20.0, 19.5, 19.6, and 17.7 mpsas respectively) and the stations which are located near or in cities are high (Bandung and Pasuruan with 17.1 and 18.0 mpsas, respectively). In a particular station (Garut) the light pollution is low (20.6 mpsas), so it is good to make this spot to be a location of astrotourism. |
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1742-6588 |
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no |
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GFZ @ kyba @ |
Serial |
2570 |
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| Author |
Agbaria, S.; Haim, A.; Fares, F.; Zubidat, A.E. |
| Title |
Epigenetic modification in 4T1 mouse breast cancer model by artificial light at night and melatonin – the role of DNA-methyltransferase |
Type |
Journal Article |
| Year |
2019 |
Publication |
Chronobiology International |
Abbreviated Journal |
Chronobiol Int |
| Volume |
in press |
Issue |
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Pages |
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| Keywords |
Animals |
| Abstract |
Currently, one of the most disputed hypotheses regarding breast cancer (BC) development is exposure to short wavelength artificial light at night (ALAN) as multiple studies suggest a possible link between them. This link is suggested to be mediated by nocturnal melatonin suppression that plays an integral role in circadian regulations including cell division. The objective of the research was to evaluate effects of 1 x 30 min/midnight ALAN (134 micro Wcm(-2), 460 nm) with or without nocturnal melatonin supplement on tumor development and epigenetic responses in 4T1 tumor-bearing BALB/c mice. Mice were monitored for body mass (Wb) and tumor volume for 3 weeks and thereafter urine samples were collected at regular intervals for determining daily rhythms of 6-sulfatoxymelatonin (6-SMT). Finally, mice were sacrificed and the tumor, lungs, liver, and spleen were excised for analyzing the total activity of DNA methyltransferases (DNMT) and global DNA methylation (GDM) levels. Mice exposed to ALAN significantly reduced 6-SMT levels and increased Wb, tumor volume, and lung metastasis compared with controls. These effects were diminished by melatonin. The DNMT activity and GDM levels showed tissue-specific response. The enzymatic activity and GDM levels were lower in tumor and liver and higher in spleen and lungs under ALAN compared with controls. Our results suggest that ALAN disrupts the melatonin rhythm and potentially leading to increased BC burden by affecting DNMT activity and GDM levels. These data may also be applicable to early detection and management of BC by monitoring melatonin and GDM levels as early biomarker of ALAN circadian disruption. |
| Address |
b The Israeli Center for Interdisciplinary Research in Chronobiology , University of Haifa , Haifa , Israel; Zubidat3(at)013.net.il |
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| Publisher |
Taylor & Francis |
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| Language |
English |
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English |
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0742-0528 |
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| Notes |
PMID:30746962 |
Approved |
no |
| Call Number |
IDA @ john @ |
Serial |
2211 |
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| Author |
Agnew, J.; Gillespie, T.W.; Gonzalez, J.; Min, B. |
| Title |
Baghdad Nights: Evaluating the US Military ‘Surge’ Using Nighttime Light Signatures |
Type |
Journal Article |
| Year |
2008 |
Publication |
Environment and Planning A |
Abbreviated Journal |
Environ Plan A |
| Volume |
40 |
Issue |
10 |
Pages |
2285-2295 |
| Keywords |
Remote Sensing; Commentary |
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0308-518X |
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no |
| Call Number |
GFZ @ kyba @ |
Serial |
2028 |
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| Author |
Ahn, H.; Lee, S.; Jo, E. |
| Title |
Assessment on Lighting Management Zones for Light pollution in Gwangju Metropolitan City |
Type |
Journal Article |
| Year |
2018 |
Publication |
한국태양에너지학회 학술대회논문집 |
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| Keywords |
Lighting; Planning |
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no |
| Call Number |
GFZ @ kyba @ |
Serial |
1960 |
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